Thursday, October 31, 2019

Feedback and its importance Essay Example | Topics and Well Written Essays - 500 words

Feedback and its importance - Essay Example in organizations) or in universities. Since the key objective of providing feedbacks is to inform the individuals concerned regarding their performance, and give them objective opinions, it helps them to understand their strengths and weaknesses and utilize their capabilities to the optimum, and hence pave way for self-growth. Furthermore, feedback helps in identifying the problem areas or areas of concern and develops ways to overcome the shortcomings. For instance, in terms of organizational learning, the managers periodically evaluate the job performance of their workers and employees, and provide them feedback on the basis of a thorough assessment. Such an assessment can then be used by the workers to identify gaps in their performance and use the same to increase their productivity (Anderson 1990; Kluger & Denisi 1996). Similarly, feedback in universities, which are given in the form of grades or critique of their work, helps the students in identifying the areas in which they e xcel and those where they need to put in more effort. Various schools and universities also enable teacher feedback, whereby the students assess the performance of their teachers. It is only through feedback, that any substantial and positive change can be hoped to be achieved.

Tuesday, October 29, 2019

Balanced Safety Scorecard for Saudi Schools Thesis - 1

Balanced Safety Scorecard for Saudi Schools - Thesis Example For incorporating any new initiative it is important that the Management and the top bosses are with it. Unless they decide to implement the program, process or initiative properly no new thing can go through. Hence while designing a Safety BSC it is important to evaluate the attitude of the Management. Management is more generic term; it shall include the top management authority of the school, Cleaners, administrative staff and the teachers as well. This is because safety is universal to all human beings and its learning and knowledge should not be imparted based on degree of seniority or status. Once the BSC is implemented by looking at this perspective score one can say that how successful the management is in taking care of health and safety of its pupils in schools and what are the areas of improvement for the managers.Factors under this perspective will basically include factors which indicate the dedication of management to safety, involvement of employees in the safety progr am and their awareness level. Sometimes the program is implemented from up above but till it reaches at the base level staff the effectiveness and efficiency decreases drastically. Hence it is important also to see how the supervisors are carrying out their duty of communication and support to its subordinates. Hence perceived supervisor competence is a factor to be considered. There has to be some incentive shown to people for being a party to safety culture. The title may be self explanatory but the question might arise that why is it necessary.

Sunday, October 27, 2019

Analysis of Motivations for Rural Tourism

Analysis of Motivations for Rural Tourism Chapter1. Introduction Travel motives and attempted to understand what motive affect tourists travel decision making process and when. Both the leisure and tourism literature have recognised that when people are motivated, they are more likely to participate in leisure travel and encourage tourists to engage in pleasure trip. None of studies have shown meaningful way of findings on ‘what type of motives occur and ‘how tourists are influenced by motivational factors with respect to the travel decision making process. Countryside background of the researchers is also, one of the inspired to choose rural tourism. Along with the researchers holiday experience in New Forest National Park become a motivation to examine the types of visitors and reason of the visiting New Forest National Park as a rural tourism. It was necessary to find out who are the rural tourists in the park In order to study for rural tourism in the park. After that the New Forest National Park would able to find a problems, improvement or enhancement for participants as well as non participants as a rural tourism. In addition, if there is anything to learn or find out the researcher would like to adapt to home countrys rural tourism development. This study was designed to investigate the motivation of rural tourism and identify the visitors in New Forest National Park. Rural tourists were identified and profiled and then rural tourists were investigated based on motivations for participating in rural tourism. 1.1 Background of New National Forest Park The New Forest was originally Woodland, but parts were cleared for cultivation from the Stone Age and into the Bronze Age. The poor quality of the soil in the New Forest meant that the cleared areas turned into heathland waste. The New Forest was created as a royal forest by William the conqueror for the hunting of deer. As of 2005, roughly ninety percent of the New Forest is still owned by the Crown, the Crown lands have been managed by the Forest Commission since 1923. Around half of the Crown lands fall inside the new National Park. New Forest National Park is an area that remains mostly undeveloped, unspoiled and has a high scenic. The New Forest national park Authority is an independent organisation. The park is operating in a local government framework which is funded by central UK government. The New Forest National Park is the smallest national park in south coast of England and the park has become a national park since 2005. There are more than 20 members who have overall responsibility for making decisions, for setting policies and priorities and for making sure that resources are used properly and they are supported by 70 other staffs who expertise across a range of disciplines including planning, conservation, recreation, education, finance and communication. 1.2 Overview of rural tourism in UK Tourism is becoming increasingly important to the UK economy, environmental, culture. The importance of tourism to local economies varies across the UK. Some place like London has an enormous investment in the tourist industry, while others lag far behind. Nevertheless, the future of tourism is full of potential for small business. With the increases in security concerns for international travel and travel to large major areas, many rural tourist companies are moving in with their own offerings. Many of these low-risk rural areas may be able to rely on tourism as an important part of their economy. Cloke (1992) cites privatisation in the UK as a major process stimulating this form of rural production focused on rural recreation and tourism. The new political economy influencing agriculture in the EC has also facilitated farm diversification into new form of tourism accommodation and attractions. A variety of tourist opportunities exist throughout rural area in UK and tend to continue to grow as increasing numbers of local entrepreneurs identify new way to market previously untapped local resources and attractions, and bring tourists into their areas. Moreover, the nature of tourism is especially well – suited to small-scale rural enterprises such as farm inn. Many remote areas are ideal locations for nature-based activities like walking, hunting and fishing, or ecotourism activities such hiking and rafting. Travelers interested in local cultures as well as the heritage of places they visit find an added benefit in having the towns local history buff lead a tour through the battlefield. For instance, Agriculture tourism invites tourists to experience working ranches, hay rides, corn mazes, and pumpkin patches etc†¦ At a time of change and uncertainty in the countryside, when many traditional rural industries are in decline or needing to adapt to stay in business, tourism represents an opportunity to stablise and support businesses and services. In carefully introduced and managed, and appropriate in scale and activity, tourism can help revitalise declining community facilities and services to the benefit of businesses, residents and the local economy. Rural tourism represents a merging of perhaps two of the most influential yet contradictory features of modern life. Not only are the forces of economic, social, cultural, environmental and political change working to redefine rural spaces the world over, but also, broad global transformations in consumption and transportation patterns are reshaping leisure behavior and travel. For these concerned with the nature of change in rural areas and tourism development, the dynamics and impacts of integrating these two dramatic shifts are not well know but yet are becoming increasingly provocative discourses for study.   1.3 Aims of the study 1.3.1 Aims It is important note that to identify the rural tourism visitors and their motivation of the trip in order to increase the number of the visitors as well as manages the rural destination without damages.  This proposed study is comprised of three parts. The first part of the study and dissertation will identify and profile the rural tourism tourists in New Forest National Park. This will involve profiles of rural tourism participants at the destination. The next part will identify motivational factor of the visitors in New Forest National Park rural tourism. This will involve identify the reason of the rural tourism trip.  The next park will determine the factors that affect rural tourism participation decisions. This will identify determine the factors that affect rural to tourism participation decisions. The aim is broad to allow for other discussion which after reviewing the literature reviews. It will be appear relevant to the paper. 1.3.2 Objectives Three objectives are formulated for this study. Research question are also related to each objective are described. The purpose of this dissertation thus is to examine the type of travel motivations that affecting tourists decision making behaviour in rural tourism. The first of the study will identify and profile the rural tourism in New Forest National Park. Second of the study will examine the motivational factor which underlies their initial stage of travel decision. Finally, the study will investigate factors that affect tourists decision about participation in rural tourism in New Forest National Park. 1.3.3 Research questions The first of the research question is simply identified of the New Forest National Park rural tourists are? This question will identify the characteristic of the visitors such as travelling individual or family, single, male, old, young people? Do New Forest National Park tourists have a particular profile such as higher income or sex? The second research question is doing New Forest National Park rural tourists have a difference in terms of visitors motivational factor? This question will identify the any particular reasons of the rural trip in New Forest National Park. In order to answer the question the study will focus on reason of the visiting in New Forest National Park as a rural tourism. The tourists pay participation in different type of tourism such as camping, farm experience. Third question is what factors may affect to decision to participate in rural tourism in this National park. Are they participating because of seeking for particular interest? Or just want to be in rural area. This question need to identify what it the items that tourist thinks most important such as safety, transportation, scenery or distance†¦ Will be surveyed with like scale 1 to 5. Also, satisfaction of the travel will be collected. What factors affect to decisions to participate in rural tourism in New Forest National Park? What factors then affect the participation? Maybe perception of rural resources will affect the decision of whether to participate in rural tourism. 1.4 Definition of terms There are continuing common theme within the tourism literature indicating that people intend to take a rural area trip because they are motivated by variety of different forces such as escaping from daily life routine, seeking adventure, rewarding and attractive destination attributes (Cha, McCleary, and Uysal. 1995) The motivational factors are believed to play a vital role in the tourist decision making process (Crompton and Ankomah. 1993). Rural tourism includes both those who intend to staying away from home for one night or more and those out for the day in the countryside for instance, visiting attractions, walking, cycling or enjoying a whole different range of countryside activities. These people are spends money in village shops, pubs, and restaurants and in market towns. They provide a market for local produce and create and opportunities for local entrepreneurship those staying overnight will do so in hotels or inns, bed breakfast establishments or self-catering accommodation, on the farm, on caravan parks or campsites, or with friends and relatives. Those out for the day may be from within the region or from further afield, and may include those on holiday in nearby seaside resorts or on day trips out of London. They may be visiting for a specific event or to see a particular attraction. They may have a particular interest in sports, arts, museums or heritage, or seek educational outlets for their children. They may also be on business, for a meeting or small conference, or to look for commercial contracts and business opportunities. A proportion of those staying or visiting will be from overseas, including those from the near continent. The underlying dimension of motivational attributes in travel decision behaviour is worthy to note in order to understand the factors that influence travel decisions. Travel motivation might explain not only tourists initial decision of whether or not to take a trip. But also, may contribute to explaining tourists final travel decision behaviours (Fodness. 1992) 1.5 Structure of the dissertation Chapter 1 provides overview of the rural tourism and background of New Forest National Park. Also presented is a description of the research problems which is limitation of the research and study aim, objectives and research questions. Chapter 2 conducted a literature review in which discussed various aspects of rural tourism and visitors characteristic, motivation of the rural trip and visitors decision making factors. Chapter 3 describes and discusses the methods used to collect the data that was needed including the survey method and data for analysis. Chapter 4 follow on by analysis the introduction of the study and offers a range of discussion of findings. Chapter 5 completes of the study with a brief summary and se of conclusions. Limitations of the study and recommendation also discussed. The study was designed to accomplish three objectives: first identify and profile the rural tourism tourists in New Forest National Park second objective was examine the motivational factors that visitors seeking rural tourism and last objective was identify the relative travel motives decision making to reach to take a rural tourism. Chapter2. Literature reviews 2.1 Rural tourism Lane (1992) noted that a third phase in tourism is taking place – the rise of cultural tourism. In this phase rural tourism offers more jobs, a pluri-activity of work patterns, a more diversified employment structure for rural areas and a means of sustaining services, farming and forestry. Rural tourism produces pressure to enhance conservation measures, while it provides a stimulus for arts and crafts and helps sustain small communities. Keane et al.s (1992) innovative, but little-known study on rural tourism offers a number of insights into the definition of rural tourism, acknowledging that there is a variety of term used to describe tourism activity in rural areas: agri-tourism, farm tourism, rural tourism, soft tourism, alternative tourism and many others which have different meanings from one country to another. Keane also points out that it is difficult to avoid some of this confusion in relation to labels and definitions because the term ‘rural tourism has been adapted by the European Community to refer to the entire tourism activity in a rural area (Deane et al. 1992) http://books.google.co.uk/books?hl=kolr=id=Axc_zw_AO0QCoi=fndpg=PR8dq=what+is+rural+tourismots=rpw1C_DgA9sig=VMW2zUvYT828-jykKDpgnLZ742Y#v=onepageq=f=false To a certain extent, undifferentiated or mass tourism exists in rural areas, but this phenomenon is usually manifested in large scale developments and at some point cases to be ‘rural in nature ; mass and rural tourism are essentially incompatible and development of the former lessen the availability of the latter. Although it would be logical to assume that everyone is a potential rural tourist at some time. The range of rural tourism products and experiences is too great for generalisations. What matters, therefore is gaining knowledge of the existing and potential rural tourists motives, preferences and behaviour regarding the various niche markets that exist; specifically, who can be attracted to a given rural tourism product? This is research task complicated by the fact that many domestic and international visitors experience urban, rural and resort attractions on the same trip.(Stephen page Donald Getz 1997) Lane (1994) recommended research into price sensitivity, the importance of particular types of land-scape, heritage and interpretive facilities, and on demand for certain types of accommodation. Better understanding of perceptions, motivators and consumption patterns (such as repeat visit) is also important. Rural tourism development attracted increasing interest in the 1990s and a growing literature has contributed to our understanding of it as an evolving phenomenon. According to long and lane (2000), rural tourism has moved into its second phase of development, its first having been characterised by growth in participation, product and business development, and partnership. Its second is predicted to be more complex, and is likely to be, given the questions that remain regarding its place in policy, its integration in practice. What is rural? There is no one commonly accepted definition for ‘rural (Willits Beatler, Timbers, 1990). In Websters dictionary, ‘rural is defined as â€Å"rural is defined as â€Å"of or pertaining of the country, as distinguished from a city or town; living in the country; and farming/agricultural (Websters Revised Unabridged Dictionary.1998). ‘Rural applies to sparsely settled or agricultural country. The definition of ‘rural in the Korean dictionary is â€Å"a village or area where people make a living by farming, including raising stock, sericulture, horticulture, forestry, and fruit-growing (Yahoo Korea Dictionary, 2004) Lane (1994) suggests that ‘rural tourism exists as a concept, and reflects the differing and complex pattern of rural environment, economy, history and location. ‘Rural tourism is directly related to the particular characteristics of rural area, and it is assumed that the principal motivation for visiting the countryside is to experience its reality. This motivation justifies the definition of ‘rural tourism as an identifiable type of tourism, with rural tourism being an end onto itself – to experience the countryside. Lane (1994) discusses the historical continuity in the development of rural tourism and examines some of the key issues which combine to make rural tourism distinctive. Bramwell (1994:3) suggests that, despite the problems of defining the concept of ‘rural, ‘it may be a mistake to deny our commonsense thoughts that rural areas can have distinctive characteristics or the countryside. The views and perceptions people hold of the countryside are different from those they have of urban areas, which is an important starting point for establishing the distinctiveness of rural tourism. Lane (1994) actually lists the subtle differences between urban and rural tourism, in which individual social representations of the countryside are critical component of the ways in which people interact with rural areas. In fact Squires (1993) acknowledges that both social representations and personal images of the countryside condition whether people wish to visit rural areas for tourism, and what they see and do during their visit Lane (1994) also highlights the impact of change in rural tourism since the 1970s, with far greater numbers of recreationalists and tourists now visiting rural areas. As Patmores (1983) seminal study on recreation and leisure acknowledges, the impact of car ownership has led to a geographical dispersion of recreationalists and tourists beyond existing fixed modes of transport. Consequently, tourism has moved away from a traditional emphasis on resorts, small towns and villages to become truly rural, with all but the most inaccessible wilderness areas awaiting the impact of the more mobile tourist. Despite this strong growth in the demand for rural tourism Land(1994) acknowledges the absence of any systematic sources of data on rural tourism, since neither the world Considering the demand and supply of rural tourism, it can be defined more specifically; Demand-side rural tourism is based on the nature of the visitor and is defined as â€Å"a visit by a person to any place other than his or her usual work or home environment and that is outside a Standard Metropolitan Statistical Area (Greffe,1994,p23). On the other hand, supply-side rural tourism is more focused on a visitors place of stay. Rural tourism is also associated with a particular from of accommodation that offers tourism opportunities to participate in farm-related activities, such as vegetable gardening or caring for farm animals. ‘Agricultural tourism is specified by the act of visiting a working farm or any agricultural horticultural or agribusiness operation for the purpose of enjoyment, education, or active involvement in the activities of the farm or operation (Lobo, 2001; Buck, 2004). It includes taking part in a board range of farm-based activities, including farmers markets, petting farms, roadside stands, and ‘pick-your-own operations; engaging in overnight farm or ranch stays and other farm visits; and visiting agriculture-related festivals, museums, and other such attractions. Agricultural tourism operations provide a bridge between urban and rural dwellers. Agricultural tourism, or agri-tourism, is one alternative for improving the incomes and potential economic viability of small farms and rural communities. Farm to tourism is defined as a subset of rural tourism and is in many ways an incarnations of the traits typical to rural enterprises; small-scale, with local roots, and anchored in local traditions. It also seems to be the oldest form of rural tourism (Nilsson, 2002). The concept of rural tourism has evolved substantially in recent years. One aspect of the change is reflected in the vocabulary used to describe various types of rural tourism activities. For instance, some studies refer to outdoor-based tourism as ‘ecotourism, while other publications use the term ‘nature based tourism or ‘green tourism (Stancliffe, 1992). Although these two terms are not technically synonymous; the term ‘ecotourism suggests activities that promote conservation of nature, while nature based tourism is evocative of a broader spectrum of outdoor based recreation including hunting, fishing, camping, and the use of recreational vehicles. These new terms reflect new perspectives in the tourism industry. Green tourism – although in some countries the term ‘ green tourism refers specifically to tourism in the countryside(i.e. tourism in green areas), it is more commonly used to describe forms of tourism that are considered to be more environmentally friendly than traditional, mass tourism. Variously called ‘alternative, responsible, soft, good'(Wood and House 1991) or ‘new (Poon 1993) tourism, green tourism is an approach to tourism development which seeks to develop a symbiotic relationship(Budowski 1976) with the physical and social environment on which it depends. In other words, increasing concern about the harmful effects of mass tourism has led to calls for more sustainable forms of tourism development such as approach is, of course, of particular relevance to rural tourism given the environmental fragility of many rural areas. Heritage tourism is also often included within the scope of rural tourism and refers to leisure travel that has as its primary purpose the experiencing of places and activities that represent the past. The principal concerns of heritage tourism are historical authenticity and the long term sustainability of attractions (Gartner 2004) Ecotourism is a form of tourism development which ‘offers unique opportunities for integrating rural development, tourism, resource management, and protected area management in many sites around the world (Hvenegaard 1994). More specifically, it is a form of nature tourism which actively promotes environmental conservation, is directly beneficial to local societies and cultures, and which provides tourists with a positive, educative experience. It is, in effect, a form of alternative, sustainable tourism (Cater and Lowman 1994: 3), but one which, implicitly, depends on a rural environment. Hence, ecotourism is a subset of rural tourism, but not all rural tourism is necessarily ecotourism. When studying rural tourism, it is essential to first define exactly what is involved in rural tourism, because a lack of clarity in terms of definition can influence data collection, resulting in partial information on rural tourism with regard to both scope and scale (SharpleyRoberts, 2004) The roots of rural tourism are very similar throughout the world, no matter when it comes into practice (Fleischer Pizam, 1997). In the early days, rural tourism was developed and encouraged primarily for the purpose of revitalization and diversification of rural areas. A decline in the ability of farming and related agricultural support businesses limited the ability of farmers and rural residents to generate sufficient income causing many farmers to seek new sources of income and to diversify their farms. Also, a systematic and substantial decrease in the rural populations, the aging of these populations, now characterizes many rural areas (Fleischer Pizam, 1997; Ribeiro Marques, 2002) Tourism has long been suggested as a strategy of revitalizing rural economies. rural tourism can add income to farms and other households, provides job alternatives, diversifies the rural economy, and makes the provision of certain infrastructure possible(Oppermann,1996). Therefore, many rural communities turned to tourism to stimulate new economic development (Blaine, Mohammad, Var, 1993) Lane (1994) offers some tourism market trends that will accelerate the growth of rural tourism in the future. He points to growing interest in rural life, including heritage and tradition, an increasing health consciousness giving a positive appeal to rural lifestyles and values, market interest in high performance outdoor equipment, search for solitude and relaxation in a quiet natural place, and an aging but active population retiring earlier but living and travelling far into old age. As increasing attention has been paid to rural tourism as a specific form of tourism development, so too has the scope of research into tourism in rural areas become more diverse. Rural tourism is not new however; interest in rural tourism has increased rapidly during the past several years. The recent surge in rural tourism has come from the demand-side, due in part to increased disposable incomes improved lifestyles, increased health awareness, a mature travel market, changing tastes and preferences, and increases in automobile and weekend travel (Hill, 193; Alexander Mckenna, 1998) Opportunities for rural tourism development include general tourism growth, increased family vacationing, environmental interest, the recent dispersion of travel through growing auto travel, a mature travel market, changing tastes and preferences, urbanization, and growing weekend travel. On the other hand, there are also obstacles to rural tourism development, which include weak drawing power, dispersion of attractions and services, meagre secondary economic impacts, internal community conflicts, and destination life cycle. Hill (1993) made several suggestions for capitalizing on rural tourism opportunities and overcoming various obstacles. The major challenges he identifies are developing attractions, encouraging entrepreneurship, informing markets, reacting to changing tastes, providing quality service and preserving attractions and attractiveness. It is important to stress that a number of different tourism products or types of tourism development fall under the heading of rural tourism. However, they do not necessarily equate with it. For example, farm tourism refer to ‘all forms of tourism that are directly connected with a farm (Jansen-Verbeke and Nijmegen 1990) and includes staying on a farm, either in rooms or camping, educational visits, meals, recreational activities, and the sales of farm produce or handicrafts. Tourism has been considered as a vehicle for economic regeneration and employment creation in the UK, too. A number of local authorities have sought to capture the potential economic benefits afforded by tourism and a number of studies have investigated the ways to maximize the benefits. Thomas and Long (2001) presented the development of employee skills as a key issue for effective tourism development. They examined the link between employee skills development and the contribution of tourism to regeneration in rural areas. Wilson et al (2001) addressed the importance of the community context and rural tourism â€Å"entrepreneurs role in tourism development and promotion in rural areas. According to Wilson, the ten most important conditions for successful tourism development in rural areas include a complete tourism package, good community leadership, support and participation of local government, sufficient funds for tourism development, strategic planning, coordination and cooperation between rural tourism entrepreneurs, information and technical assistance for tourism development and promotions, good convention and visitors bureaus, and widespread community support for tourism. Cooperation of all elements of the industry and the community has also been emphasized by Hunt (1992). Additionally, he has suggests a broad-based program that details development, marketing and management as a strategy for successful development of rural tourism. Tourism has been considered as a vehicle for economic regeneration and employment creation in the UK, too. A number of local authorities have sought to capture the potential economic benefits afforded by tourism and a number of studies have investigated the ways to maximize the benefits. Thomas and Long (2001) presented the development of employee skills as a key issue for effective tourism development. They examined the link between employee skills development and the contribution of tourism to regeneration in rural areas. Oppermann (1996) found a surprising fact in a study of farm based tourism in southern Germany: operators thought a ‘calm relaxing environment was the chief motivator of tourists, but to visitors the actual farm environment was only a backdrop. And although the environmental wisdom in Germany is that rural tourists are mostly middle-aged couples with children Oppermann(1995) found a bimodal distribution defined by couples and groups of four. Families were much more likely to stay on farms. Identifying and segmenting the rural tourism market is probably the lease researched and understood process in the rural tourism system. There are few studies that focus on the rural tourist, although one could assemble market facts from diverse sources and aggregate them into a comprehensive rural tourism market evaluation. 2.2 Rural tourism issues However, rural tourism development may not always be the best strategy for solving rural problems. The successful development of rural tourism depends upon planning and the existence of infrastructure, attractions, essential services, management, maintenance, and an accessible market. In the absence of any one of these elements, a rural region may find that tourism is not a cost-effective option, or that other development tools, such as investment in infrastructure and education, must precede the development of rural tourist attraction and services ( Edgell Carwright, 1990). Only when proper conditions prevail, can tourism be a contributor to rural economic development in the areas. Sandell argue about the tourism access issues. Rural tourism is, simply, about people. It is about tourists who visit and enjoy the countryside and who, in order to do so, must be able to travel to and within rural areas. In other words, for rural tourism to exist and, by implication, for it to benefit local communities, people must have access to the countryside. As tourism is increasingly developed in rural areas and as the demand for rural tourism grows, so too will there be a greater need other demands on the countryside but also with the longer term protection or conservation of the rural resources. As more tourists demand access and as rural planners and managers, eager to jump on the rural tourism industry, should be limited to Swedish citizens as a result of concern over the misuse of theses rights by overseas tourists (Sandell 1995) Ray Williams discussed problems as the division and opposition of city country, industry and agriculture, in their modern forms, are the critical culmination of the division and specialisation of about which, though it did not begin with capitalism, was developed under it to an extraordinary and transforming degree. Other forms of the same fundamental division are the separation between mental and manual labour, between administration and operation, between politics and social life. The symptoms of this division can be found at every point in what is now our common life; in the idea and practice of social classes; in conventional definitions of work, the year, the lifetime. Much of the creative thinking of our time is an attempt to re-examine each of these concepts and practices. It is based on the conviction that the system which generates and is composed by them is intolerable and will not survive. On new forms of decision-making, new kinds of education, new definitions and practic es of work, new kinds of settlement and land-use (William, 1975) Williams (1984) also argue that traditional forms of rural planning were related to development control by designating landscap

Friday, October 25, 2019

Lead Systems Eng :: essays research papers

20th Century Genius I selected Carl Jung at the beginning of this course because I had done some general research on a few of the people that were on the list, which was supplied in our course module. When I came to Carl Jung I found that he was born in Switzerland just north of Geneva. At the time I was living in Geneva, and I felt it would be interesting to do research on someone who was from Switzerland. What I leaned about Carl Jung was fascinating, although there is so much more to lean about this individual and also his area of genius. Many of the concepts certainly would take more advanced study and research. However, I believe he is a good candidate for 20th century genius and he deserves that distinction. Carl Jung, pronounced (Carl Young), is an intellectual genius and his field of genius is in the science of psychology. The science or field of psychology is truly left to those with intellectual prowess, however, from what I have learned about this man, is that he is not only a participant of this field, but he also has shaped and made significant contribution to this, the science of psychology. I believe it takes a genius no less to study psychology, but even more so to shape and lead in this field. Psychology is such a difficult, complex and advanced study because the human mind, emotions and human behavior is so very complex. The word, †Complex† is interesting because it was Carl Jung who coined that term in a book he published titled, â€Å"Studies in word association†, but more on that later. Psychologists have little more than their intellect as tools to rely on. What is interesting about Carl Jung is that part of his life falls along the fringe of our studies over the past five weeks. For example, he was born in Switzerland and his father was a protestant priest. We also learned that Switzerland is where Calvinism really took hold. These things, the birth of Protestant and Calvinism began as a result of the Reformation, which we learned earlier in our studies. Also, one of his theories about the unconscious falls on the fringe of our recent studies in art. So, to study Carl Jung I felt really tied in nicely with our study of Humanities. First, a little background on Carl Jung.

Thursday, October 24, 2019

Managing across border

How does culture affect the process of attribution in communication? Can you relate this to some experiences you have had with your classmates? When the message reaches the receiver, it undergoes a transformation which is influenced by the receiver's culture. What is stereotyping? Give some examples. How might people stereotype you? Stereotyping happen when a person assumes that every member of a society or subculture has the common characteristics. Take I-JK is an example. Vietnamese often do nails Chinese often open restaurant Indian often are doctor Asian often know martial art What is the relationship between language and culture?How is it that people from different countries who speak the same language may still miscommunicate? Language conveys culture, technologies and priorities. Language is inseparable from culture; language cannot be interpreted without an understanding of culture. Within a given language group are many sub-cultures that have their own interpretations of cer tain words or phrases, or who may have their own idioms or regional expressions Give some examples of cultural differences in the interpretation of body language. What is the role of such nonverbal communication in business relationships?Americans look straight at you when communicating, whereas the British keep your attention by looking away. Arabs prefer to touch and stand very close when communicating. Koreans speak more loudly to emphasize a point; Americans speak loudly when they are angry. Improper non-verbal communication can add a significant level of noise to the communication process. The listener may attribute meaning to the noise that might damage the business relationship. Explain the difference between monochronic and polychromic time systems. Use some examples to illustrate the differences and the role of time in intercultural communication.Monochronic time systems have a linear system of time with a past, present and future. People in monochronic systems generally co ncentrate on one thing at a time. Polychronic time systems are a non-linear system of time where people tolerate the simultaneous occurrence of many events. Explain the differences between high- and low-context cultures, giving some examples. What are the differential effects on the communication process? In high- context cultures, the context in which the communication takes place is vital to the communication of the message†the message is implicit.In low-context cultures, the ontext in which the communication takes place is secondary to the communication† the message is explicit. Discuss the role of information systems in a company, how and why they vary from country to country, and the effects of these variations. Communication in organizations varies according to where and now intormation originates and the channels and speed at which information flows internally and externally. One example of how cultures vary is on the importance of the source of information. Some cultures prefer important information to originate only from the top of the hierarchy.

Wednesday, October 23, 2019

Me seek death

Triangle Skills to Solve Problems For each word problem below, you must draw a picture and show your work towards a solution. Solutions are given for each problem. Since these are real-life type problems, answers should be decimal approximations as opposed to being in simplest radical form. You are allowed to use anything you know about triangle similarity, right triangles and right triangle trigonometry. This assignment is a learning target and is required to pass this semester.P = Do these problems if you want a Proficient score for this learning target HP = Do Hess problems if you want a Highly Proficient score for this learning target A = All students are required to do these problems P 1) A soccer ball Is placed 10 feet away from the goal, which Is 8 feet high. You kick the ball and it hits the crossbar along the top of the goal. What is the angle of elevation of your kick? (38. 70) P 2) If a person 5 Ft 10 inches tall casts a 7 Ft. 4 inch shadow, how tall is a person who casts a shadow 6 Ft. 8 inches long? Put answer in feet and 4 inches) P 3) Michelle delivers books to school libraries. Her truck has a slide out ramp for unloading the books. The top of the ramp Is 3 feet above the ground. The ramp itself Is 5. 2 feet long. What is the horizontal distance the ramp reaches? Also, what Is the angle of elevation of the ramp? (4. 25 Ft. ; 35. 20) A 4) An airplane is at an elevation of 35,000 Ft. When it begins its approach to an airport. Its angle of descent is 60. What is the horizontal distance between the plane and the airport? Also, what is the approximate air distance from the plane to the airport? 63 miles; 63. 4 miles) P 5) Pete has a 15-foot ladder. The safety instructions recommend he should have he base of the ladder 6 feet from the base of the wall he will lean the ladder against. How high will the ladder reach on the wall? (13. 75 feet) A 6) A lighthouse keeper observes that there Is a 30 angle of depression between the horizontal and the line of sight to a ship. If the keeper Is 19 meters above the water, how far Is the ship from shore? (362. 5 meters) opposite bank. (90 meters) HP 8) Mart is standing 4 Ft. Behind a fence 6 Ft. 6 inches tall.When she looks over the fence, she can Just see the top edge off building. She knows that the building is 32 Ft. Inches behind the fence. Her eyes are 5 Ft. From the ground. How tall is the building? Give your answer to the nearest half-foot. (See diagram below) (18. 7 feet) A 9) A 25-foot ladder is placed against a building. The bottom of the ladder is 7 feet from the building. If the top of the ladder slips down 4 feet, how many feet will the bottom slide out? (slipped 8 feet) A 10) Driving through the mountains, Dale has to go up and over a high mountain pass.The road has a constant incline for 7 miles to the top of the pass. Dale notices from a road sign that in the first mile he climbs 840 feet. What is the height of the mountain pass? (5280 feet = 1 mile). Also, how steep is the i ncline in degrees? (Answer in feet) (6510 Ft. ; 9. 20) HP 11) You want to hang banner that is 29 Ft. Tall. You are thinking of hanging it outside from the third floor of your school, but need to measure to see if it will fit there. The trouble with measuring the direct distance is that there is a large 6 Ft. Tall bush in the way at the base of the school building.You throw a 38 Ft. Long rope out the window to a friend on the ground. She walks away from the building until the pop is taught. Upon measuring, she finds the angle of elevation of the rope to be 700. Will the banner fit on the wall and be completely above the bush? How much space will there be between the top of the bush and the bottom of the banner? (Banner will fit with . 7 off foot to spare) HP 12) Chris is mailing his friend a poster that has been rolled up in a long tube. He has a box that measures 20 inches by 8 inches by 4 inches. What is the maximum length the rolled poster can be? Where you label the dimensions on your drawing on the box won't affect your answer) (21. 7 inches) HP 13) Elena is standing on a plateau that is 800 Ft. Above a basin where she can see two hikers. The angle of depression from her line of sight to the first hiker is 250 and to the second hiker is 150. How far apart are the two hikers? (1270 feet) HP 14) The front and back walls of an A-frame cabin are isosceles triangles, each with a base 10 m and sides of 13 m. The entire front wall is made of glass that cost $120/mm. What did the glass for the front wall cost? $7200) angle of elevation of the sun was 550, the length of the shadow cast by this flagpole as 210 Ft. Find the height of the flagpole to the nearest foot. Also, what was the length of the shadow when the angle of elevation of the sun was 340? (300 feet; 444. 8 feet) A 16) International rules of basketball state the rim should be 3. 05 meters above the ground. If your line of sight to the rim is 340 and you are 1. 7 meters tall, what is the horizontal dista nce from you to the rim? (2 meters) P 17) Eagleburger is 17 miles south of Linebacker, and Linebacker is 5 miles west of Pueblo.Carson lives nine miles north of Linebacker. How many miles will Carson eave to drive altogether from his home to Eagleburger if he stops in Pueblo on the way? (Make sure he goes the shortest distances possible) (28 miles) P 18) A student looks out of a second-story school window and sees the top of the school flagpole at an angle of elevation of 220. The student is 18 Ft. Above the ground and 50 Ft. From the flagpole. Find the height of the flagpole. (38. 2 Ft. ) HP 19) You need to add 5 supports under the ramp, in addition to the 3. 6 meter one so that they are all equally spaced. You should have six supports in all.How long should each support be? Also, what is the angle of descent of the ramp? (220) A 20) A 17-foot wire connects the top of a 28-foot pole to the top of a pole. What is the shortest length of wire that you could use to attach the top of th e short pole to the bottom of the tall pole? (25 feet) A 21) Juanita, who is 1. 82 meters tall, wants to find the height off tree in her backyard. From the tree's base, she walks 12. 20 meters along the tree's shadow to a position where the end of her shadow exactly overlaps the end of the tree's shadow. She is now 6. 1 meters from the end of the shadows.How tall is the tree? 5. 46 meters) HP 22) A giant California redwood tree 36 meters tall cracked in a violent storm and fell as if hinged. The tip of the tree hit the ground 24 meters from the base. Researchers wished to investigate the crack. How many meters up from the base of the tree would they have to climb? (10 feet) HP 23) George is looking out from a window 30 feet above the street. The angle of elevation is 500 to the top off building across the street. The angle of depression to the base of the same building is 200. Find the height of the building across the street. (128. 2 Ft)

Tuesday, October 22, 2019

The childhood of Adolf Hitler The Nativity of Evil essays

The childhood of Adolf Hitler The Nativity of Evil essays Intro: An idea such as killing millions of people to create a more prefect world or sameness throughout the human race is absolutely psychotic and unrealistic. This vision was a fantasy world that no one on the earth would ever live in. Yet there was one man that truly believed in this fantasy. He had a plan, a scheme, sketched out in his head, of how this world would work. Yet the strange thing was that he did not fit in his own perfect world. Many ask how would someone come across this image? How is it possible? This image was created with constant negative influences throughout his life. It began when he was a small boy, since before he acknowledged this visualization. He had this idea, though he had no idea of exactly how it formed. His absurd fantasy was formed from his absurd childhood. Alois Hitler was a firm and often-obstinate man. He had a strong beliefs and opinions. Alois was born in 1837 carrying his Mother's name, Schicklgruber. Later in his life, after accomplishments in the civil service, his haughty uncle wanted him to go by his name, which was Heidler("Hitler" The World Book Encyclopedia 255). When time came for record books, it was spelled as "Hitler", the name that would soon haunt the earth. Alois married his third wife at 52, having fathered three children, soon to be four. One of which, would disgrace and belittle the human race, his name was Adolf Hitler. Adolf's mother, Klara Polzl was born in 1860 and married Alois in 1885 ("Hitler" The World Book Encyclopedia 255). Klara was a tender mother that often showed much affection for her little "Adi". Many believe she cared for Adolf this way because she was in fear of losing her only living child, for she had had a miscarriage before ("The Rise of Hitler" Online). Adolf's stepbrother and stepsister (Edmund soon found a stirring hate for their stepbrother. On May 6, 1895 Adolf enrolled i...

Monday, October 21, 2019

Absolute Beginner English Daily Habits and Routines

Absolute Beginner English Daily Habits and Routines After students have completed this lesson they will be able to complete most basic linguistic functions (giving personal information, identifying and basic description skills, talking about basic daily tasks, and how often those tasks are done). While there is obviously a lot more learning to be done, students can now feel confident that they have a strong base on which to build in the future. With this lesson, you can help students begin speaking in longer phrases by having them prepare a talk on their daily activities that they can then read or recite to their fellow classmates and which can then be used as the basis for questions. Part 1: Introduction Give the students a sheet with various times of the day. For example: 7:007:308:0012:003:305:006:3011:00 Add a list of verbs they are familiar with on the board. You may want to write a few examples on the board. For example: 7.00 - get up7.30 - eat breakfast8.00 - go to work Teacher: I usually get up at 7 oclock. I always go to work at 8 oclock. I sometimes have a break at half past three. I usually come home at five oclock. I often watch TV at eight oclock. etc. (Model your list of daily activities to the class two or more times.) Teacher: Paolo, what do I often do at eight oclock in the evening? Student(s): You often watch TV. Teacher: Susan, when do I go to work? Student(s): You always go to work at 8 oclock. Continue this exercise around the room asking students about your daily routine. Pay special attention to the placement of the adverb of frequency. If a student makes a mistake, touch your ear to signal that the student should listen and then repeat his/her answer accenting what the student should have said. Part II: Students Talk About Their Daily Routines Ask students to fill out the sheet about their daily habits and routines. When students are finished they should read their list of daily habits to the class. Teacher: Paolo, please read. Student(s): I usually get up at seven oclock. I seldom have breakfast at half past seven. I often go shopping at 8 oclock. I usually have coffee at 10 oclock. etc. Ask each student to read their routine in class, let students read all the way through their list and take note of any mistakes they may make. At this point, students need to gain confidence when speaking for an extended period of time and should, therefore, be allowed to make mistakes. Once the student has finished, you can correct any mistakes he or she may have made. Part III: Asking Students About Their Daily Routines Ask students to once again read about their daily routine to the class. After each student has finished, ask the other students questions about that students daily habits. Teacher: Paolo, please read. Student(s): I usually get up at seven oclock. I seldom have breakfast at half past seven. I often go shopping at eight oclock. I usually have coffee at 10 oclock. etc. Teacher: Olaf, when does Paolo usually get up? Student(s): He gets up at 7 oclock. Teacher: Susan, how does Paolo go shopping at 8 oclock? Student(s): He often goes shopping at 8 oclock. Continue this exercise around the room with each of the students. Pay special attention to the placement of the adverb of frequency and the correct usage of the third person singular. If a student makes a mistake, touch your ear to signal that the student should listen and then repeat his/her answer accenting what the student should have said.

Sunday, October 20, 2019

Achievement Motivation Essay Example for Free

Achievement Motivation Essay ? What is it? This links personality with the degree of competitiveness shown by an individual. Its main focus is the extent to which an individual is motivated to attain success. Some Theories about it   Murray (1938) indicated that it was natural for individual to strive to surpass another (genetically) like trait. Bandura (1977) believed that a competitive drive was a product of learning (social learning). Atkinson and McCelland (1976) has the view of an interactionist and predicts achievement motivation is generated through a combination of personality and situation factors. Atkinson and McCelland view of achievement motivation as a personality trait which is activated by a situation, the situation comprises the probability of success and the incentive value of success. -Probability of success;the extent to which success is likely;For example success is more likely of the task is found by the individual to be easy. -Incentive value of success;the incentive value experienced by the individual after success-been achieved. For example the harder the task the greater will be the incentive value because the probability of success is reduced. There are two personality types to determine achievement motivation and these are; Linked with the low need to avoid failure (Low Naf). With these characteristic, desire to succeed overcomes the fear of failure. These performers=high in achievement motivation (high achievers) 2.Low need to achieve (Low Nach) Also linked with high need to avoid failure (High Naf). These characteristics the fear of failure overcome the desire to success. These performers=low in achievement motivation (low achievers) Characteristics of high and low achievement motivation personality traits. High Nach Personality Characteristics Low Nach personality characteristics High need to achieve Low need to achieve Low need to avoid failure High need to avoid failure Approach behaviour is adopted Avoidance behaviour is adopted Challenges is accepted Challenges is rejected Risks are undertaken Risks are declined Shows persistence and perseverance when task is difficult Curtails effort when task is difficult Success tends to be attributed to external factors Failure tends to be attributed to internal factors Failure is seen as a route to success Failure is seen as the route to further failure Aspire to mastery orientation Adopt learned helpessness Approach behaviour-describes behaviour that accepts a challenge Avoidance behaviour-describes behaviour that rejects a challenge Attribution-The process that predict reasons for success or failure Mastery Orientation-The strong motive to succeed found in the high achievement. This type of person will expect to succeed but will persist when failure is experienced Learned helplessness-The belief that failure is inevitable and that the individual has no control over the factors that cause failure. Their theory of achievement motivation is best at predicting behavioural responses in situations where there is a 50/50 chance of success. This will trigger motivation for those performers with high achievement traits=likely  to display approach behaviour and mastery orientation characteristics in these circumstances. Incentive value=high when chance is evenly balanced. In contrast to performers who show low achievement motivation would experience greatest anxiety in situations with a 50/50 chance of success— later adopt avoidance behaviour and experience learned helplessness. Approach or avoidance behaviours likely to arise when in a evaluative situation=Situation in which an individual believes they are being assessed. 1.Achievement or success can interpreted in many ways. Some performers regard success as victory over others. For example a long jump athlete winning an event. These people are said to have ego goal orientation. Those with this believe that ability and comparison over others=criteria for success. 2.Others judge on the basis of person improvement in a given task-For example a second long jump athlete may view success as the achievement of an improved performance. These people are said to have task orientation. Those with the task orientation value internal goals and believe that effort and comparison with self=criteria for success. Sport Specific Achievement Motivation(Competitiveness) Competitiveness in this context means- motivation to achieve in sport. Gill and Deeter (1988), using their own test called the ‘Sport Orientation Questionnaire’ (SOQ), confirmed that athletes were far more competitive than non-athletes. As as statement, this would appear obvious. Evidence of greater significance-athletes favoured performance goals (task orientation) while non-athletes emphasised the importance of winning (ego orientation) The type of goal set by the teacher as the measure of success in sport-related activities has, therefore, a significant influence upon the decision to adopt and sustain an active and healthy lifestyle. The important association between sport-specific motivation (competitiveness), confidence and goal setting. Achievement Motivation. (2016, May 10).

Friday, October 18, 2019

Environmental laws Essay Example | Topics and Well Written Essays - 250 words

Environmental laws - Essay Example This however was still being rejected and criticized for cost reasons (Glicksman 63). Animals also deserve to live in a peaceful and habitable environment same as human being and that is the reason there are environmental laws tailored towards ensuring this happens. An example of such law is the Endangered Species Act of 1973 which aims to protect certain species of animals from being completely wiped out through hunting or poaching. However, just like other environmental laws, it is still termed as a waste of resources and time especially since there are many animals in the world. Lastly, there is the pollution which has proven from time immemorial to be a menace to society. The problem was partly taken care of when the Nixon administration passed the Clean Air Act in 1970. This however did not stop the critics and ignorant individuals in society from breaking this act and still polluting the environment. The worse mistake being committed by ignoring these environmental laws is that it is the people and animals who are facing the repercussions of the negative effects of not following these laws including getting sick from water-borne diseases and also respiratory problem as well as killing the almost extinct animal species which could be useful for future

Synopsis of War against the Weak Essay Example | Topics and Well Written Essays - 1750 words

Synopsis of War against the Weak - Essay Example He is able to trace the history of the Eugenics Philosophy to its utility in the early 20th Century, best exemplified by American scientists, livestock breeders, and politicians in their effort at creating a superior Nordic race. These results in a compulsory sterilization campaigned on over 60,000 men and women, most of them were of color and poor. This, unfortunately, was to later inform on Hitler’s cleansing campaign, which he maximized to the fullest in the resultant concentration camps.Thus, racist American pseudoscience based on the field (ideological inclination) of eugenics, as practiced in the first 3 decades of America’s 20th Century history, provided the foundation for Hitler’s quest towards the creation of a Master Race (Aryan) in Germany and then the rest of Europe. This is furthered by the great influence that American Eugenicists had on their German counterparts further solidifying Hitler’s destructive course. What is appalling is the fact t hat American eugenicists were to contribute greatly to Hitler’s Nazi racial hygiene (eradication) policy. Through utility of gas chambers, x-ray machinery for human sterilization and euthanasia, Nazi Germany was able to implement the eradication of millions of populations, these methods/ avenues having been at one time or another been proposed by American eugenicists as necessary and effective means of cleansing. Such cleansing was proposed for America’s unfit social strata based on racial discrimination.

Race, culture and identity ( social policy and criminology) Essay

Race, culture and identity ( social policy and criminology) - Essay Example As Song (2001, p.58) suggests, this kind of grouping not only designates racial groups to a specific role in the society, but it also puts the minor groups into the shadow and subordination to the so-called â€Å"major† ethnic groups. Relatively, this racial and ethnic positioning also puts the â€Å"other† race into confusion as they become burdened by the nature of their identity. Racism, as a social problem, needs to be remedied to help the marginalised race overcome the barriers of color (A. Smedely and B. Smedley, 2005, p.16). In this way, people will be able to understand ethnic and racial identities as well as appreciate the significance of cultural diversity today (Frable, 1997, pp.142-143). Considering these ideas, this paper draws on scholarly articles to discuss the intertwining concepts of race, ethnicity, and identity. Specifically, this paper aims to discuss those concepts in relation to the â€Å"Black† subject. The Black subject stems from issues related to race, ethnicity, and identity. As Blacks and those who are considered non-white continue to suffer from racial and ethnic tensions worldwide, issues on race, ethnicity, and identity will continue to prevail in the society. Considering this situation, it can be said that studying these concepts would enable people to understand the nature of the Black subject, and the reason why it came into being. Before discussing the origin of the Black subject, it is essential to understand the concepts of race, ethnicity, and identity. These three concepts interrelate in a way that people use those to identify and differentiate themselves. The concept of identity, in the words of Brubaker and Cooper (2000, p.7), refers to three things: 1) product of socio-political action, 2) self-hood, and 3) group category. All these three aspects apply in the context of the Black subject. Black, as a group category,

Thursday, October 17, 2019

Critique analysis of scientific paper (How does calorie restriction Essay

Critique analysis of scientific paper (How does calorie restriction work) - Essay Example Testing biases may have played a role, as controlled subjects may have been overfed to the extent of sickness. Despite knowledge of its effects strongly established, its mechanisms remain unknown due to the complexities from metabolic, neuroendocrine, and apoptotic changes involved. Several theories exist on the mechanism of CR. Classical views by evolutionary biologists shows that aging results from the inability of natural selection to pick out and dispose the undesirable characteristics in a post reproductive stage of life. According to a leading research, aging is caused by oxidative damage to DNA, RNA, lipids and proteins. Such damage is reported to have been reduced in CR animals. Studies conducted on CR in yeast have proven that food deficiency has resulted in an increased life span, as part of a synchronized response. Studies conducted on CR and metabolic changes in mammals show that it consists of two stages. The adaptive stage is one in which the restricted animal adjusts to low levels of glucose intake, and results in a striking loss of protein and carbohydrates followed by fat mass. Consequently, the liver produces ketones that are used in the next phase that is the steady state to meet the brain’s energy requirements. Glucose level in the blood falls and then rises, albeit not to the same degree as the initial level, during the whole process. The neuroendocrine system has been found to play a fundamental role in the aging process, its unique feature being that it affects every tissue of the body. Strong evidence is available from researches on various species of worms for part that hormones play in the process. There are normally low levels of pituitary growth hormone (GH), thyroid stimulating hormone, and other hormones in CR animals. This attests the significant position that neuroendocrine system

Biometric Authentication Essay Example | Topics and Well Written Essays - 500 words

Biometric Authentication - Essay Example The desirable processes of biometric authentication methods that make it reliable include verification, screening and identification. This process makes use of a watch list or a database, containing data of people to be excluded. It has records containing only the biometric information for specific individual (Ratha, Connell & Bolle 2001, p. 610). Every individual provides biometric samples to be checked to confirm if it matches the watch-list. This process is used in the discovery of an individual without the user’s prior claim of identity. It checks the bio information against the contents of a central database without which it cannot operate. This is the attack where a person pretends to be a genuine person or individual service provider and prompts a user to provide personal bio data. Once the data is available and has passed through verification, the perpetrator of the attack performs unauthorized transactions. The phishing attack is equally harmful and takes place with or without the knowledge of the owner of the bio data. For example, an individual gets into a banking hall, gets into a dust bin and collects half-filled customer vouchers containing handwritten signature or fingerprint. He or she scans the signatures and finger prints which are then used electronically for valid online transactions. Biometric methods are more secure in the performance of online transactions. The owner provides Unique biometric information only when required electronically, unlike in the use of ordinary identification numbers. A biometric method provides a high degree of privacy to users and minimizes the exposure of information to unauthorized parties (Weaver 2006, p. 99). For example, for an iris scan to be done, a person must be physically available. It is possible to fraudulently reproduce biometric data depending on the resources, modality, the

Wednesday, October 16, 2019

A Story of Forgiveness Essay Example | Topics and Well Written Essays - 500 words

A Story of Forgiveness - Essay Example From this paper it is clear that in the solution-centered approach provided by Charles Alan Kollar in his book, he focuses on counseling to take off the attention from the problems thereby helping the counselee to focus on the solution leading to emotional and psychological well-being. This type of counseling will allow Bruce to come out of the hard situation he is going through to realize further needs to educate drag drivers and other young individuals about safety. In such a way, he can recover from the problem he is going through and at the same time, it will provide inspiration for other individuals who have gone through a similar situation. In addition, this will help promote safety among young individuals who might risk their safety of themselves or others while acting rashly.This discussion outlines that  Bruce shows characteristics of a D type in the DISC relational style and hence he likes to lead and take charge. This quality can prove to be positive during his treatment according to the approach mentioned in Johnson and Johnson's book as he is suffering from an anxiety disorder after the loss of his daughter and his wife.  A very important challenge to deal with will be Bruce's involvement and his progress during the treatment. A result-oriented or solution-oriented approach is appropriate for Bruce's current behavioral position.

Biometric Authentication Essay Example | Topics and Well Written Essays - 500 words

Biometric Authentication - Essay Example The desirable processes of biometric authentication methods that make it reliable include verification, screening and identification. This process makes use of a watch list or a database, containing data of people to be excluded. It has records containing only the biometric information for specific individual (Ratha, Connell & Bolle 2001, p. 610). Every individual provides biometric samples to be checked to confirm if it matches the watch-list. This process is used in the discovery of an individual without the user’s prior claim of identity. It checks the bio information against the contents of a central database without which it cannot operate. This is the attack where a person pretends to be a genuine person or individual service provider and prompts a user to provide personal bio data. Once the data is available and has passed through verification, the perpetrator of the attack performs unauthorized transactions. The phishing attack is equally harmful and takes place with or without the knowledge of the owner of the bio data. For example, an individual gets into a banking hall, gets into a dust bin and collects half-filled customer vouchers containing handwritten signature or fingerprint. He or she scans the signatures and finger prints which are then used electronically for valid online transactions. Biometric methods are more secure in the performance of online transactions. The owner provides Unique biometric information only when required electronically, unlike in the use of ordinary identification numbers. A biometric method provides a high degree of privacy to users and minimizes the exposure of information to unauthorized parties (Weaver 2006, p. 99). For example, for an iris scan to be done, a person must be physically available. It is possible to fraudulently reproduce biometric data depending on the resources, modality, the

Tuesday, October 15, 2019

Infotainment of U.S. News Media Essay Example for Free

Infotainment of U.S. News Media Essay The current type of news media in the United States, dubbed as infotainment, wherein soft journalism is preferred over hard news, further stains the reputation of what is regarded as the â€Å"Fourth State† or one of the influential bodies in American society. This is because this kind of coverage does not offer serious reporting of events and hard facts, but sensationalized news about the lives of personalities, crime, and other less realistic stories. It is unfortunate to note that infotainment has made American media more comfortable with embellishing hard news primarily because it is what the public wants and what the public needs. Under the disguise and with misleading purpose of an energized print sales and broadcast ratings, infotainment is such a blooper which actually further escalates the worsening level of news media public. At the same time, it damages more the involvement and knowledge of the readers and viewers. In short, the existing nature of American news media weakens the quality of reporting and credibility of broadcast and print media companies, pushes further their respective public, and is detrimental to the nations democracy. Due the tight competition within the industry, American news media is now tied up to meet income expectations, resulting in a quality sacrifice and economic operation demands that dictate the choices of news content and compromise the managements operations. This transformation in the industrys mode has promoted a second thought of industry standards. This leaves the profession into the hands of new era of media practitioners who are less committed to the existing journalism code of ethics. These new breed have actually portrayed themselves as famous personalities moonlighting as journalists or news reporters. Ultimately, it is both the news organizations and American public which are to be blame for this sickening and continued reporting that focuses on personalities and other forms of entertainment rather than the essence or content of a news event. This is because no media company would practice infotainment if it will not click with the audience. However, it is not yet too late to save the news media industry. What it can do is for it to keep abreast and take advantage of the technological advancements within the industry such as the accessibility of satellite television or cable system and availability of World Wide Web or Internet. American media should utilize these technological improvements by not sensationalizing or resorting to what is called the â€Å"yellow journalism. † Instead, it should advance its cause and primary goal which is to present to the public a balance, fair, and fearless news reporting.

Monday, October 14, 2019

What Are The Concepts Of Thermochemistry Environmental Sciences Essay

What Are The Concepts Of Thermochemistry Environmental Sciences Essay The beginnings of modern thermochemistry, though made independently of the doctrine of the conservation of energy, are practically contemporaneous with the recognition of that law, and without it the science could scarcely have reached the degree of development which it rapidly attained. Thomas Andrew and, especially Hess were the first who systematically investigated thermochemical effects in solution, and arrived at conclusions from their experimental data which still possess validity. Andrews, for example, found that when a series of acids were under similar conditions used to neutralize a given amount of a base, the quantity of heat evolved on the neutralization was the same in all cases. Hess, from his work, arrived at the converse conclusion, that when a series of bases were used to neutralize a given amount of an acid, the heat of neutralization was always the same. Both of these statements are correct when the powerful mineral acid and bases are considered, exceptions only ar ising when weak acids and bases are employed. Again, Andrews discovered that when one metal displaces another from solution of its salts (e.g. zinc with solutions of copper salts), the thermal effect is practically independent of the nature of the acid radical in the salt employed. Andrews likewise found that when the heat evolved on. the displacement from its salts of a metal M by a metal M is added to the heat of displacement of another metal M by M, the sum is equal to the heat which is evolved on the direct displacement of M from its salts by M. This affords an example of a principle which had been stated by Hess in a very general form under the name of the Law of Constant Heat Sums namely, that the thermal effect of a given chemical action is the same, independently of the character and number of the stages in which it takes place. Thus, in the above example, it is immaterial whether M displaces M from its salt directly, or whether M first displaces M, which is then used to di splace M. This important principle is a direct consequence of the law of the conservation of energy, but was discovered independently by Hess from accurate experiment. Oxidation of Zn to ZnO . . 5291 units à ¢Ã¢â€š ¬Ã… ¾ S to SO 3 . 6384 à ¢Ã¢â€š ¬Ã… ¾ Dissolution of SO 3 in much water. .. . . 2566 à ¢Ã¢â€š ¬Ã… ¾ ZnO in the resulting aqueous H2S04. 1609 à ¢Ã¢â€š ¬Ã… ¾ 1585 o à ¢Ã¢â€š ¬Ã… ¾ Deduct heat of dissolution of anhydrous ZnSO 4 . . 11 93 à ¢Ã¢â€š ¬Ã… ¾ Heat of formation of ZnSO 4 from Zn, S, and 40 = 14657 à ¢Ã¢â€š ¬Ã… ¾ Hess employed this principle to determine indirectly the heat of formation of compounds from their elements, when this magnitude, as is generally the case, was inaccessible to direct measurement. Thus the heat of formation of anhydrous zinc sulphate, ZnSO 4j which cannot be determined directly, may be arrived at by summation (in Hesss units) as follows: Heats of formation are still determined for the most part in a precisely similar manner. Hess also stated another principle on empirical grounds, which, although admitting of many exceptions, is of considerable utility and significance. It had been known long before his time that when solutions of neutral salts were mixed, and no precipitate resulted, the mixed solution was also neutral. Hess now observed that in the process of mixing such neutral solutions no thermal effect was produced that is, neutral salts in aqueous solution could apparently interchange their radicals without evolution or absorption of heat. These experimental results were generalized by him under the title of the Law of Thermoneutrality. After the investigations of Hess and Andrews, a great deal of excellent experimental work was performed by P. A. Favre and J. T. Silbermann, whose chief theoretical achievement was the recognition that the heat of neutralization of acids and bases was additively composed of two constants, one determined by the acid and the other by the base. This dedction harmoniz ed the observations of Andrews and of Hess previously alluded to, and also accounted satisfactorily for the Law of Thermoneutrality. Julius Thomson was the first investigator who deliberately adopted the principle of the conservation of energy as the basis of a thermochemical system. His thermochemical work was begun in 1853, but most of his experiments were performed in the years 1869-82, the whole being published collectively, under the title Thermochemische Untersuchungen, in four volumes. Somewhat later than Thomson, Marcellin P. E. Berthelot began (in 1873) a long series of thermochemical determinations. It is to these two investigators and their pupils that most of our exact thermochemical data are due. Thomsen and Berthelot independently enunciated a generalization (commonly known as Berthelots Third Principle, or Principle of Maximum Work), which may be stated in brief as follows: Every pure chemical reaction is accompanied by evolution of heat. Whilst this principle is undoubtedly applicable to the great majority of chemical actions under ordinary conditions, it is subject to numerous exceptions, and cannot therefore be taken (as its authors originally intended) as a secure basis for theoretical reasoning on the connexion between thermal effect and chemical affinity HEAT IN THERMOCHEMISTRY . The existence of reactions which are reversible on slight alteration of conditions at once invalidates the principle, for if the action proceeding in one direction evolves heat, it must absorb heat when proceeding in the reverse direction. As the principle was abandoned even by its authors, it is now only of historical importance, although for many years it exerted considerable influence on thermochemical research. 2. From the standpoint of the law of conservation of energy, the relation between chemical and thermochemical action bears the following aspect: A given amount of any substance under given conditions possesses a perfectly definite amount of intrinsic energy, and, no matter what chemical and physical transformations the substance may undergo, it will, when it returns to its original state, possess the original amount of intrinsic energy. If we consider now the transformation of one system of chemical substances into another system under specified conditions, we shall find that in general the intrinsic energy of the second system is different from the intrinsic energy of the first. Let us assume, as is commonly the case, that the intrinsic energy of the initial system is greater than that of the final system. When the first system then is transformed into the second, the excess of energy which the former possesses must appear in the shape of heat, light, electrical energy, mechanical energy, c. It is for the most part a simple matter to obtain the excess of energy entirely in the form of heat, the amount of which is easily susceptible of measurement, and thus the existence of thermochemistry as a practical science is rendered possible. Since the intrinsic energies of the two systems under given conditions are invariable, the difference between them is constant, so that the heat evolved when the first system is converted into the second is equal to that absorbed when the second system is re-transformed into the first (cf. Lavoisier and Laplace, ante, 1). The total thermal effect, too, which is associated with the transformation, must be the same, whether the transformation is conducted directly or indirectly (Hesss Law of Constant Heat Sums), since the thermal effect depends only on the intrinsic energies of the initial and final systems. Since the intrinsic energy of a substance varies with the conditions under which the substance exists, it is necessary, before proceeding to the practical application of any of the laws mentioned above, accurately to specify the conditions of the initial and final systems, or at least to secure that they shall not vary in the operations considered. It is also a necessary condition for the application of the preceding laws that no form of energy except heat and the intrinsic energy of the substances should be ultimately involved. For example, when metallic zinc is dissolved in dilute sulphuric acid with production of zinc sulphate (in solution) and hydrogen gas, a definite quantity of heat is produced for a given amount of zinc dissolved, provided that the excess of energy in the initial system appears entirely as heat. This provision may not always be fulfilled, since by placing the zinc in electrical contact with a piece of platinum, likewise immersed in the sulphuric acid, we can g enerate a current of electricity through the solution and the metallic part of the circuit. The reaction as before is completely expressed by the chemical equation Zn+H2S04 =ZnSO 4 H+ 2, the initial and final systems being exactly the same as in the first case; yet the amount of heat generated by the action is much smaller, a quantity of the intrinsic energy having been converted into electrical energy. This electrical energy, however, is equivalent to the heat which has disappeared, for it has been shown experimentally that if it is converted into heat and added to the heat actually evolved, the total quantity of heat obtained is exactly equal to that produced by the direct dissolution of the zinc in the absence of platinum. 3. The following conditions have to be considered as affecting in a greater or less degree the intrinsic energy of the initial and final systems: (1) Dilution of solutions. (2) Physical state. (3) Change of volume. (4) Allotropic modifications. (5) Temperature. (i) Generally speaking, there is a considerable thermal effect when a substance is dissolved in water, and this effect varies in magnitude according to the amount of water employed. It is only, however, when we deal with comparatively concentrated solutions that the heat-effect of diluting the solutions is at all great, the heat-change on diluting an already dilute solution being for most practical purposes negligible. In dealing, therefore, with dilute solutions, it is only necessary to state that the solutions are dilute, the exact degree of dilution being unimportant. It occasionally happens that a change in dilution affects the chemical action that occurs. Thus if concentrated instead of dilute sulphuric acid acts upon zinc, the action takes place to a great extent not according to the equation given above, but according to the equation Zn +2H 2 SO 4 = ZnS04+S02+2 H20, sulphur dioxide and water being produced instead of hydrogen. Here we have a different final system with a diffe rent amount of intrinsic energy, so that the thermal effect of the action is altogether different. (2) The physical state of the reacting substances must be considered, since comparatively large amounts of heat are absorbed on fusion and on vaporization . Thus the heat of fusion of ice(for H 2 O=18 g) is 1440 cal., and the heat of vaporization of water at 100 °, for the same quantity, 9670 cal. (3) The effect of change of volume against external pressure (due to production or consumpion of mechanical energy) may be neglected in the case of solids, liquids or solutions, but must usually be taken into account when gases are dealt with. Each grammemolecule of a gas which appears under constant pressure during a chemical action (e.g. hydrogen during the action of zinc on dilute sulphuric acid) performs work equivalent to 580 cal. at the ordinary temperature, which must be allowed for in the thermochemical calculation. A similar correction, of opposite sign, must be made when a gramme-molecule of gas disappears during the chemical action. (4) When a substance e.g. carbon, phosphorus , sulphur exists in allotropic forms, the particular variety employed should always be stated, as the conversion of one modification into another is frequently attended by a considerable thermal effect. Thus the conversion of yellow into red phosphorus evolves about one-sixth of the heat of combustion of the latter in oxygen, and so the knowledge of which variety of phosphorus has been employed is of essential importance in the thermochemistry of that element. (5) The influence of temperature on the thermal effect of a chemical action is sometimes considerable, but. since the initial and final temperatures, which alone determine the variation in the thermal effect, are in almost all cases within the ordinary laboratory range of a few degrees, this influence may in general be neglected without serious error. 4. Methods. In order to estimate the thermal effect of any chemical process, use is made of the ordinary methods of calorimetry, the particular method being selected according to the nature of the chemical action involved. In almost every case the method of mixture (see Calomitry) is employed, the method of fusion with Bunsens ice-calorimeter being only used in special and rarely occurring circumstances. As a very great number of important chemical actions take place on mixing solutions, the method for such cases has been thoroughly studied. When the solutions employed are dilute, no water is placed in the calorimeter, the temperature-change of the solutions themselves being used to estimate the thermal effect brought about by mixing them. Known quantities of the solutions are taken, and the temperature of each is accurately measured before mixing, the solutions having been allowed as far as possible to adjust themselves to the same temperature. The change of temperature of the solutions after the mixing has taken place is then observed with the usual precautions. It is of course in such a case necessary to know the specific heat of the liquid in the calorimeter. Thomsen by direct experiment found that the heat-capacity of a dilute aqueous solution diverged in general less than i per cent. from the heat-capacity of the water contained in it, the divergence being sometimes in one sens e, sometimes in the other. He therefore abstained from determining for each case the specific heats of the solutions he employed, and contented himself with the above approximation. Berthelot, on the other hand, assumed that the heat-capacity of an aqueous solution is equal to that of an equal volume of water, and calculated his results on this assumption, which involves much the same uncertainty as that of Thomsen. Since thermochemical measurements of this type may be frequently performed with an error due to other causes of much less than i per cent., the error introduced by either of these assumptions is the chief cause of uncertainty in the method. The calorimeter used for solutions is usually cylindrical, and made of glass or a metal which is not, attacked by the reacting substances. The total quantity of liquid employed need not in general exceed half a litre if a sufficiently delicate thermometer is available. The same type of calorimeter is used in determining the heat of solution of a solid or liquid in water. Combustion calorimeters are employed for observing the heat generated by the brisk interaction of substances, one of which at least is gaseous. They are of two kinds. In the older type the combustion chamber (of metal or glass) is sunk in the calorimeter proper, tubes being provided for the entrance and exit of the gaseous substances involved in the action. These tubes are generally in the form of immersed in the water of the calorimeter. In the newer type (which was first proposed by Andrews for the combustion of gases) the chemical action takes place in a completely closed combustion chamber of sufficient strength to resist the pressure generated by the sudden action, which is often of explosive violence. The steel combustion chamber is of about 250 c.c. capacity, and is wholly immersed in the calorimeter. To withstand the chemical action of the gases, the calorimetric bomb is lined either with platinum, as in Berthelots apparatus, or with porcelation, as in Mahlers. For ordinary combustions compressed oxygen is used, so that the combustible substance burns almost instantaneously, the action being induced by means of some electrical device which can be controlled from without the calorimeter. The accuracy of heats of combustion determined in the closed calorimeter is in favourable cases about one-half per cent. of the quantity estimated. 5. Units and Notation in thermochemistry The heat-units employed in thermochemistry have varied from time to time. The following are those which have been in most general use: Small calorie or gramme calorie. cal. Large or kilogramme calorie. Cal. Centuple or rational calorie. K. The centuple calorie is the amount of heat required to raise 1 g. of water from o ° C. to C., and is approximately equal to ioo cal. The large calorie is equal to 1000 cal. In view of the not very great accuracy of thermochemical measurements, the precise definition of the heat-unit employed is not a matter of special importance. It has been proposed to adopt the joule, with the symbol j, as thermochemical unit for small quantities of heat, large amounts being expressed in terms of the kilojoule, Kj =100o j. (For the exact relation between these heat-units, see Calorimetry.) For ordinary thermochemical work we may adopt the relation 1 cal. = 4.18 j, or 1 Cal. = 4.18 Kj. Except for technological purposes, thermochemical data are not referred to unit quantity of matter, but to chemical quantities i.e. to the gramme-equivalents or gramme-molecules of the reacting substances, or to some multiples of them. The notation which Julius Thomsen employed to express his thermochemical measurements is still extensively used, and is as follows: The chemical symbols of the reacting substances are written in juxtaposition and separated by commas; the whole is then enclosed in brackets and connected by the sign of equality to the number expressing the thermal effect of the action. The chemical symbols stand for quantities measured in grammes, and heat-evolution is reckoned as positive, heat-absorption as negative. Thus [S, 20] =71100 cal. indicates that 71100 calories are evolved when 32 grammes of sulphur react with 2 X 16 grammes of free oxygen to form sulphur dioxide. It is of course necessary in accurate work to state the conditions of the reaction. In the above instance the sulphur is supposed to be in the solid rhombic modification, the oxygen and sulphur dioxide being in the gaseous state, and the initial and final systems being at the ordinary temperature. Again, the equation [2N, 0] =-18500 cal. indicates that if 28 grammes of nitrogen could be made to unite directly with 16 grammes of oxygen to form nitrous oxide, the union would cause the absorption of 18500 calories. When substances in solution are dealt with, Thomsen indicates their state by affixing Aq to their symbols. Thus [NaOH Aq, HNO 3 Aq] =13680 cal. represents the heat of neutralization of one gramme-equivalent of caustic soda with nitric acid, each in dilute aqueous solution before being brought into contact. One draw back of Thomsens notation is that the nature of the final system is not indicated, although this defect in general causes no ambiguity. Berthelots notation defines both initial and final systems by giving the chemical equation for the reaction considered, the thermal effect being appended, and the state of the various substances being affixed to their formulae after brackets. W. Ostwald has proposed a modification of Berthelots method which has many advantages, and is now commonly in use. Like Berthelot, he writes the chemical equation of the reaction, but in addition he considers the chemical formula of each substance to express not only its material composition, but also the (unknown) value of its intrinsic energy. To the right-hand member of the equation he then adds the number expressing the thermal effect of the reaction, heat-evolution being as before counted positive, and heat-absorption negative. The mass-equation then becomes an energy-equation. He thus writes S+02=S02+7110o cal., which expresses the fact that the intrinsic energy of the quantities of sulphur and oxygen considered exceeds that of the sulphur dioxide derived from them by 71100 cal. when thermal units are employed. The equation H2+12=2HI-12200 cal. expresses that under certain conditions the intrinsic energy of hydriodic acid is greater than the intrinsic energy of its component elements by 12200 cal., i.e. that hydriodic acid is formed from its elements with absorption of this amount of heat. Energyequations, such as the above, may be operated with precisely as if they were algebraic equations, a property which is of great advantage in calculation. Thus by transposition we may write the last equation as follows 2HI =H2+12+12200 cal., and thus express that hydriodic acid when decomposed into its elements evolves 12200 cal. for the quantity indicated by the equation. Ostwald has made the further proposal that the formulae of solids should be printed in heavy type (or within square brackets), of liquids (solutions, c.) in ordinary type, and of gases in italics (or within curved brackets), so that the physical state the substances might be indicated by the equation itself. Thus the equation Cl 2 -1-2KI, Aq=2KC1, Aq+12+52400 cal., or (C12) +2KI, Aq =2KC1, Aq+[12]-I-52400 cal., would express that when gaseous chlorine acts on a solution of potassium iodide, with separation of solid iodine, 52400 calories are evolved. 6. Heat of Formation. For thermochemical calculations it is of great importance to know the heat of formation of compounds from their elements, even when the combination cannot be brought about directly. As an example of the use of Ostwalds energy-equations for the indirect determination we may take the case of carbon monoxide. The following equations give the result of direct experiment  :- C +20 = CO 2+943 oo cal. CO+ O=CO 2 +68000 cal. If now it is required to find the heat of formation of the compound CO, which cannot be directly ascertained, we have merely to subtract the second equation from the first, each symbol representing constant intrinsic energy, and thus we obtain C+0 00= 26300 cal., or C+0=C0+26300 cal., that is, the heat of formation of a gramme-molecule of carbon monoxide is 26300 cal. As has already been stated, the heat of formation of a compound is the amount (expressed in thermal units) by which its intrinsic energy exceeds or falls short of that of the elements which enter into its composition. Now of the absolute values of intrinsic energy we know nothing; we can only estimate differences of intrinsic energy when one system is compared with another into which it may be directly or indirectly converted. But since the elements cannot be converted one into the other, we are absolutely without knowledge of the relative values of their intrinsic energy. This being the case, we are at liberty to make the assumption that the intrinsic energy of each element (under specified conditions) is zero, without thereby introducing any risk of self-contradiction in thermochemical calculations. This assumption has the great advantage, that the intrinsic energy of a compound relatively to its elements now appears as the heat of formation of the compound with its sign reversed. Thus if we consider the energyequation C +02 = CO 2+943 00 cal., and replace the symbols by the values of the intrinsic energy, viz. zero for carbon and oxygen, and x for carbon dioxide, we obtain the equation o+o=x+94300 cal. or x = 94300 cal. With knowledge then of the heats of formation of the substances involved in any chemical action, we can at once calculate the thermal effect of the action, by placing for each compound in the energy-equation its heat of formation with the sign reversed, i.e. its heat of decomposition into its elements. Thus if we wish to ascertain the thermal effect of the action Mg+CaO =MgO+Ca, we may write, knowing the heats of formation of CaO and Mg0 to be 131000 and 146000 respectively, 0-131000 = 0-146000+x x =15000 cal. Since heats of formation afford such convenient data for calculation on the above method, they have been ascertained for as many compounds as possible. Substances with positive heats of formation are termed exothermic; those with negative heats of formation are termed endothermic. The latter, which are not very numerous, give out heat on decomposition into their elements, and are more or less unstable. Amongst endothermic compounds may be noted hydriodic acid, HI, acetylene, C 2 H 2, nitrous oxide, N 2 O, nitric oxide, NO, azoimide, N 3 H, nitrogen trichloride, NC1 3. Some of these pass into their elements with explosive violence, owing to the heat generated by their decomposition and the gaseous nature of the products. 7. Heat of Combustion The thermochemical magnitude which is universally determined for organic compounds is the heat of combustion, usually by means of the calorimetric bomb. The relation between the heat of combustion of a hydrocarbon and its heat of formation may be readily seen from the following example. The hydrocarbon methane, CH 4, when completely burned to carbon dioxide and water, generates 213800 cal. We may therefore write CH 4 +40 = C02+2H20+213800. Now we know the heats of formation of carbon dioxide (from diamond) and of liquid water to be 94300 cal. and 68300 cal. respectively. The above equation may consequently be written, if x is the heat of formation of methane, -x+0 = -94300-(2 X 68300) +213800 x =17000 cal. This heat of formation, like that of most hydrocarbons, is comparatively small: the heat of formation of saturated hydrocarbons is always positive, but the heat of formation of unsaturated hydrocarbons is frequently negative. or example, ethylene, C2H4 j is formed with absorption of 16200 cal., acetylene, C 2 H 2, with absorption of 59100 cal., and liquid benzene, C 6 H 6, with absorption of 9100 cal. Since the heat of combustion of a hydrocarbon is equal to the heat of combustion of the carbon and hydrogen it contains minus its heat of formation, those hydrocarbons with positive heat of formation generate less heat on burning than the elements from which they were formed, whilst those with a negative heat of formation generate more. Thus the heat generated by the combustion of acetylene, C 2 H 2, is 316000 cal., whereas the heat of combustion of the carbon and hydrogen composing it is only 256900 cal., the difference being equal to the negative heat of formation of the acetylene. For substances consisting of carbon, hydrogen and oxygen, a rule was early devised for the purpose of roughly calculating their heat of combustion (J. J. Welters rule). The oxygen contained in the compound was deducted, together with the equivalent amount of hydrogen, and the heat of combustion of the compound was then taken to be equal to the heats of combustion of the elements in the residue. That the rule is not very accurate may be seen from the following example. Cane-sugar has the formula C12H22011. According to Welters rule, we deduct II 0 with the equivalent amount of hydrogen, namely, 22 H, and are left with the residue 12 C, the heat of combustion of which is 1131600 cal. The observed heat of combustion of sugar is, however, 1354000, so that the error of the rule is here 20 per cent. A much better approximation to the heat of combustion of such substances is obtained by deducting the oxygen together with the amount of carbon necessary to form C02, and then ascertaining the amount of heat produced by the residual carbon and hydrogen. In the above case we should deduct with II 0 the equivalent amount of carbon 5.5 C, thus obtaining the residue 6.5 C and 22 H. These when burnt would yield (6.5 X9430o)+(II X68300) =1364250 cal., an amount which is less than 1 per cent. different from the observed heat of combustion of sugar. Neither of the above rules can be applied to carbon compounds containing nitrogen 8. Heat of Neutralization It has already been stated that the heats of neutralization of acids and bases in aqueous solution are additively composed of two terms, one being constant for a given base, the other constant for a given acid. In addition to this, the further regularity has been observed that when the powerful monobasic acids are neutralized by the powerful monacid bases, the heat of neutralization is in all cases the same. The following table gives the heats of neutralization of the commoner strong monobasic acids with soda: Hydrobromic acid Hydriodic acid Nitric acid Chloric acid Bromic acid Within the error of experiment these numbers are identical. It was at one time thought that the greater the heat of neutralization of an acid with a given base, the greater was the strength of the acid. It is now known, however, that when weak acids or bases are used, the heat of neutralization may be either greater or less than the normal value for powerful acids and bases, so that there is no proportionality, or even parallelism, between the strengths of acids and their heats of neutralization . sodium carbonate- Na 2 CO 3.. . Na 2 CO 3, H 2 O . Heat of Solution. +5640 cal. +2250 à ¢Ã¢â€š ¬Ã… ¾ Heat of Hydration. +339 0 cal. Na 2 CO 3, 2H 2 0 . +20 à ¢Ã¢â€š ¬Ã… ¾ +5620 à ¢Ã¢â€š ¬Ã… ¾ Na 2 CO 3, IoH 2 O . 16160 à ¢Ã¢â€š ¬Ã… ¾ +21800 à ¢Ã¢â€š ¬Ã… ¾ II. Sodium sulphate- Na 2 SO 4 +460 cal. Na 2 SO 4, H 2 O . 1900 à ¢Ã¢â€š ¬Ã… ¾ +2360 cal. Na2S04, IoH 2 O . 18760 à ¢Ã¢â€š ¬Ã… ¾ +19200 à ¢Ã¢â€š ¬Ã… ¾ 9. Heat of Solution When substances readily combine with water to form hydrates, the heat of solution in water is usually positive; when, on the other hand, they do not readily form hydrates, or when they are already hydrated, the heat of solution is usually negative. The following examples show the effect of hydration on heat of solution in a large quantity of water: io. Application of the Second Law thermodynamics to Thermochemistry. What is commonly understood by thermochemistry is based entirely on the first law of thermodynamics, but of recent years great progress has been made in the study of chemical equillibrium by the application of the second law. For an account of work in this direction see Chemical action. BIBLIOGRAPHY. Julius Thomsen, Thermochemische Untersuchungen (Leipzig, 1882-86); M. Berthelot, Essai de Mecanique Chimique fondee sur la Thermochimie (Paris, 1879); Thermochimie, donnees et lois numeriques (Paris, 1897); W. Ostwald, Lehrbuch der allgemeinen Chemie, 2nd ed., vol. ii. part I, pp. 1-517 (Leipzig, 1893); M. M. P. Muir and D. M. Wilson, Elements of Thechemistry (London, 1885); P. Duhem, Traite de Mecanique Chimique (Paris, 18 97-99); J. J. van Laar, Lehrbuch der mathematischen Chemie (Leipzig, 1901). (J. WAL.)