Heat stroke monitoring device Essay Example | Topics and Well Written Essays - 750 words

Heat stroke monitoring device - Essay Example The human body has a natural ability for temperature regulation. Thus, an increase in the subject’s core temperature makes the sweat glands on the skin to dilate having a cooling effect on the skin. To the person observing from the camera, it appears that the subject’s core body temperature is reducing when in fact it is rising (O'Kane & Sandick). There are also heats sensors that are based on infrared technology for example thermoelectric sensors that are used in medical institutions. Medical officers have used passive infrared sensors over the years to detect aural temperatures accurately. The passive sensors allow the observer to measure the surface temperature of the subject without having direct connection with the subject. Passive infrared sensors, like the aural thermometer, enable doctors take dependable aural temperature measurements while at the same time avoiding damage to the eardrum, the eardrum is part of the ear that is near the hypothalamus. The hypothal amus, located in the brain, has a function of regulating core body temperature; in essence, the human body will be reacting to the temperature of the hypothalamus. For this reason, determination of core body temperature is possible using the eardrum since it exists at approximately the same temperature level as the whole body. In addition, other heat stroke monitoring devices that have been in use include thermistors and thermocouples. Thermistors have their advantages, as they are easily measurable; have a long lifespan, and are small. They also have a quick response time, and do not need temperature referencing; the thermocouples can measure a range of temperature depending on the needs of the user. Their disadvantage is that they are non-linear and needs significant linearization algorithms for them to be efficient. Moreover, the voltage output of the element for sensing temperature in thermocouples is lower in comparison with other devices that have the capacity to change voltag e signals from analog to digital. Wet bulb globe temperature is mostly used to measure heat stress as per the proposal of the Ministry of Labor. Developers made wet bulb globe temperature to use heat radiation and atmospheric humidity in measuring heat stress. Division of heat exposure is on categories like a worker’s physical activities or acclimatization to the environmental conditions among others. Basing on these categories, there is an adjustment on the types of clothing and protective equipments for each worker. Wet bulb globe temperature needs specialized tools and expertise for them to be effective in measuring heat stroke. Wet bulb globe temperatures available in the market today have their disadvantages. They cost a lot, are large and bulky, as one has to transport the distilled water together with the measurement unit (â€Å"Microchip†). There has been some advancement in this front since the introduction of devices such as the Kestrel 4000 Pocket Weather Tr acker. This heat sensor monitor can calculate Wet bulb globe temperature values lower than 2.18 deg C that is the lowest a complete setup gives (Nielsen-Kellerman). Design Goal, Criteria, and Constraints There is need for heat stock sensor that is easy to use by someone without any medical expertise (Croce and Jenna).The design goal of the project is to come up with a wristband for measuring core body temperature that easy to operate. Since it

Exploring and learning Essay Example | Topics and Well Written Essays - 2500 words

Exploring and learning - Essay Example There are also some students who take a strategic approach, where they intend to maximize their chances of getting high marks. In today’s intellectual world, the three approaches of learning namely; deep, surface and strategic have become very popular. The surfacing issue therefore emerges on which of the three learning approaches is the most effective. This raises a very highly debatable issue. While some learners adopt a deep approach as noted by Morgan (1993), others prefer a surface approach when engaging in their studies. This paper seeks to critically analyze the three approaches of learning; deep, surface and strategic. Further, it will seek to examine how the chosen approach of learning affects the performance of a student. Marton and Saljo are the scholars behind the theory of deep and surface approaches to learning. They wrote a scholarly paper describing the varied manner in which learners approached learning in the academic sector. This studied was in the psycholog y department which at that time was quite unusual. This is because by default, they would have set up an artificial laboratory experiment for purposes of isolating one element from the other. Instead, Marton and Saljo sought to engage university students and their habitual behavior during learning. The students were required to read an article and thereafter answer questions based on the same. The study revealed that to some learners, the text was perceived as information with such discrete units meant to be memorized (Stanger-Hall, 2012, 294). The memorization was meant to help to answer the questions that would follow. The two scholars referred to this as the surface approach. On the other hand, some students perceived the text as one containing structured meaning. They were eager to discover the meaning of the article, its implications and the impact it had on them. They termed this as the deep approach. It follows that learners who engage in the deep approach had a better unders tanding of the article and were therefore able to answer a variety of question deciphered from it. In addition, they were in a better position to remember the content effectively compared to the others. Subsequent researches after this study have shown that there are different approaches to learning that students engage in while undertaking their academic tasks. A surface approach to learning can be defined as the result of low cognitive level engagement which yields to fragmented outcomes that do not translate to understanding or meaning. This process takes place when the learner takes in information ‘by heart’, but is in the least interested in engaging with the meaning of what s/he has taken. When taking this approach, the learner’s motive lies in only carrying out the task (Lauriland, 2003,47). This is due to some either positive or negative pressure/consequence. Negative in that if s/he fails, it is bound to affect his life in a not so pleasant way and posit ive in that if s/he passes, he will be favored by the teacher/instructor. Rote learning is a surface strategy whereby the learner focuses on what s/he perceives as the most important information and embarks on memorization of the same. Since the intention is as earlier noted to pass a test or exam, the learner finds not interconnections found in what is being learnt between meanings implications of the same. Surface learning is

Business and Professional Ethics Essay Example | Topics and Well Written Essays - 1500 words

Business and Professional Ethics - Essay Example a company should be to maximise its profits and consequently return a part of these profits to the shareholder group as the reward and return for the risks that they have borne by investing their money in the company. Milton Friedman’s view advocates that the shareholders of a company can decide what social responsibilities they want to take part in. This report is prepared with the aim of evaluating the pros and cons of these arguments by referring to the theoretical works presented by different scholars and practitioners in this domain. The report is concluded by presenting a view as to whether the arguments presented by Friedman still hold ground in the current corporate world. The arguments proposed by Milton Friedman suggest that a company does not have to have any kind of social responsibility towards the community and society because the only concern of the company should be to increase its financial gains and returns for the shareholders who have invested in the company (Friedman, 1970). Nevertheless, as per the contemporary theories of business ethics and corporate social responsibility, focusing on giving back to the societies and communities in which the companies operate is a necessity for achieving sustainable competitive advantage. Also, the use of suitable corporate social responsibility initiatives is mandatory for ensuring that the company remains ethically, morally as well as socially compliant (Kerr, Janda and Pitts, 2009, pp. 22-25). As per the theory proposed by Friedman, the focus of the profit oriented businesses on adding value to the society may lead to totalitarianism which is a particular type of political system in which the  federal or state authorities have total control over the community and society and thus, seeks to control all the relevant aspects of both private and public lives whenever and wherever possible. But, it can be seen in the global corporate environment that totalitarianism as a political system does not prevail

Human Evolution Article Example | Topics and Well Written Essays - 1000 words

Human Evolution - Article Example In this case, relating human evaluation with how humans connect to animals is a new idea altogether. This is because in most cases and with most scientists, human evolution is generally considered as a physical change. The author believes that most developments in the evolution of human beings are contributed by the care shown by humans towards other animals. For example, about 2.6 million years ago, when hunting was the main activity among humans, after hunters were attacked by tigers and lions, they developed weapons and advanced tools for defense. Connecting with other animals compel humans to learn more about them, as well as, having a better understanding of one self. This is because, caring for other animals humans is an ecological transition that no other living thing has made. In addition, by doing these, humans are in a position to learn what other living things do, where they are, their way of communication, as well as, the way they move. There are a number of development o bserved as a result of human connection with animals. The first one is development of symbols and language. The author indicates that human beings developed symbols to alert or warn their fellow humans upon a threat by either predators or dangerous animals. The second one is domestication of animals. Roughly 40,000 years ago, human being started rearing animals not only to get food but also with the motive of getting other resources such as clothing and security, therefore, these prompted them start selectively breed certain animals with specific traits. Lastly, evolution in the means of transport where animals are used as an aid in transporting goods. For example, in the arid areas hardly animals such as camels were used in transporting cargo across the deserts. From the article it is clear that the connection of human to animals has led to human evolution. However, the article does not illustrate how human connection to animals influence physical change. Also not all people like o r are close to animals as such. Therefore, how did such people evolve? The second article is driven by the desire to find out the truth claims advanced by some scholars that human beings are still evolving. This article provides an analysis of the research done by a leading scientist Stephen Stearn who believe that human beings are still evolving. This article ascertains that human beings are evolving gradually and over the years an average human being will be 2cm shorter and 1kg heavier. The study was carried out in great caution to eliminate the chances of cultural and social influences. The study also suggests that natural selection in today’s environment is not based on survival but on the fertility levels of women. It asserts that women with high fertility levels are likely to pass on certain traits on to their children and grandchildren. In addition, the physical characteristics of mothers had a direct correlation with the number of children that she gave birth to. The other thing that has emerged from the article is that evolution is a gradual process that is difficult to notice. The author asserts that cultural factors tend to play a larger role in influencing evolution of human beings than natural selection. This makes persons to neglect the idea of evolution, Genetic evidence also proves this assertion by indicating that about 1800 variant genes have spread faster due to their modern day evolution benefits. In addition, it was realized that mutations

Conventions of Western Art Essay Example | Topics and Well Written Essays - 2000 words

Conventions of Western Art - Essay Example All these changes in the world economy and politics, as well as in local societies did not leave artists indifferent and have certainly had a major impact on their artistic thought, making them reconsider the purpose of art itself. Artists could not resume themselves for portraits and still life. On the contrary, they started to experiment with color and material. These circumstances have to lead to the creation of original artworks, expression in art changing as fast as the social and political changes occurred. In this paper, I will talk about three artists and their main, representative artworks that best convey the principle of originality and how their artistic thought has challenged old western conceptions about what art is supposed to be. Dadaism was a cultural movement in visual arts that appeared as a response to the cruel and inhumane nature of the First World War and came to challenge rigid intellectual principles as well as all former art conventions. Not only did the sty le deny any existing connection between rationality and artistic expression, it also rejected the artistic standards at the time. One of the most important representatives of Dadaism was Marcel Duchamp, who first built his reputation as an advisor on modern art in New York, but he also leads his activity in Paris. He exhibited in 1913, for the first time, a set of ready-made sculptures, which were basically objects found on the street or elsewhere, abandoned by their previous owners, which Duchamp decided to modify, to change their appearance.

Seed predation in exotic and native legumes Lab Report

Seed predation in exotic and native legumes - Lab Report Example This way the exotic species reproduce fast and form dense populations thereby eliminating the native species that had initially thrived in the ecosystem freely. These are referred to as invasive exotic species. Exotic species are also referred to as non-indigenous species in many books. According to Keane and Crawley 2012, the most straightforward and appealing explanation for the rapid establishment and proliferation of non-indigenous species is that they are produced from the effects of their common foes and pathogens. The enemy release hypothesis explains that the abundance or impact of some non-indigenous species is related to the scarcity of natural enemies in the introduced range compared with the native range. This experiment is aimed at evaluating the effect of invasive exotic species in the ecosystem. Pods of A. lebbeck and L. latisiquum will be used to show the damage by our predator which in our case is the Bruchid beetles. The frequency of the holes made in the pods of the two different species will help us to generate our hypothesis with the two variables being used to generate the hypothesis being the origin of the species and the damage caused. The Chi-square test which will be done at the end of the practical session will be used to determine whether or not the damage caused on the seed pods was independent of the origin of the species. Our chi-square results will provide evidence of the dependence of damage on the origin of the species that we used. According to Siemann and Rogers 2003, the existence of exotic species could be enhanced by better adaptation methods and faster growth rate in the prevailing conditions. Further with time the native species could have generated many enemies and so its survival is further limited, Blossey & NÃ ¶tzold 1995. If the exotic species has developed a resistance to the Bruchid beetles then it

Essay Plan for Job Specialisation Essay Example for Free

Essay Plan for Job Specialisation Essay Job specialization is basically a job or process that is comprised of a small different parts of a larger task or process. (Williams McWilliams 2010) Purposes : To understand the phrase of â€Å"job specialisation† in detail, how job specialisation is use in job design as well as how specialized jobs can be adapted to get rid of the boredom and low job satisfaction by applying Job Characteristic model. Body paragraph First paragraph Job specialisation is economical and can always accomplish as well as regularly learn about technical development and opportunities through jobs. (An-Tien,H,Hui-Yu, C 2004,) From the modern high – tech industry, job specialisation has demonstrate that there is a clear – cut relationship with task variety, autonomy, identity and feedback. (An-Tien,H, Hui-Yu, C 2004,) Second paragraph Reason why job specialisation uses job design is because it helps to motivate, give satisfaction and performance towards its job as well as making its working condition of a workplace into a broader scope. (Fahr, R 2011) Third paragraph Specialised job can be modified with the help of five strong core job characteristics which in result which the workers have to experience the three critical psychological states, that will then motivates the personal and work outcomes. (DeVao, J, Li, R, Brookshire, D 2007) Conclusion Job specialisation is an important factor for a company if they want to eliminate boredom and low job satisfaction. However for it to be success, they would also need the help of job design and job characteristics model. (242 words) References An-Tien, H, Hui-Yu, C 2004, A reassessment of the relationship between job specialization, job rotation and job burnout: example of Taiwans high-technology industry, International Journal Of Human Resource Management, 15, 6, pp. 1108-1123. DeVao, J, Li, R, Brookshire, D 2007, ‘Analysing the job characteristics model: new support from a cross-section of establishments’, International Journal Of Human Resource Management, 18, 6, pp. 986-1003. Fahr, R 2011, ‘Job Design and Job Satisfaction – Empirical Evidence for Germany?’,Management Revue, 22, 1, pp. 28-48. Williams, C McWilliams, A 2010, MGMT, Asia Pacific Edition Cengage Learning, Melbourne.