The Science Behind Glow-in-the-Dark Products

The Science Behind Glow-in-the-Dark Products Glow-in-the-dark powders, glow sticks, ropes, etc., are all fun examples of products using luminescence, but do you know the science behind how it works? The Science Behind Glow-in-the-Dark Glow-in-the-dark falls under several different sciences including: Photoluminescence by definition is the emission of light from a molecule or atom that has absorbed electromagnetic energy. Examples include fluorescence and phosphorescence materials. The glow-in-the-dark plastic constellation kits that you stick on your wall or ceiling are an example of a photoluminescence-based product.Bioluminescence is the light emitted by living organisms using an internal chemical reaction (think deep sea creatures).Chemiluminescence is the emission of light without the emission of heat as the result of a chemical reaction (e.g., glowsticks),Radioluminescence is created by the bombardment of ionizing radiation. Chemiluminescence and photoluminescence are behind the majority of glow-in-the-dark products. According to Alfred University professors, the distinct difference between chemical luminescence and photoluminescence is that for light to work via chemical luminescence, a chemical reaction has to occur. However, during photoluminescence, light is released without a chemical reaction. The History of Glow-in-the-Dark Phosphorus and its various compounds are phosphorescents or materials that glow-in-the-dark. Before knowing about phosphorus, its glowing properties were reported in ancient writings. The oldest known written observations were made in China, dating back to 1000 BCE regarding fireflies and glow-worms. In 1602, Vincenzo Casciarolo discovered the phosphorus-glowing Bolognian Stones just outside of Bologna, Italy. This discovery started the first scientific study of photoluminescence. Phosphorus was first isolated in 1669 by German physician Hennig Brand. He was an alchemist who was attempting to change metals into gold when he isolated phosphorus. All photoluminescence glow-in-the-dark products contain phosphor. To make a glow-in-the-dark toy, toymakers use a phosphor that is energized by normal light and that has a very long persistence (the length of time it glows). Zinc Sulfide and Strontium Aluminate are the two most commonly used phosphors. Glowsticks Several patents were issued for Chemiluminescent Signal Devices during the early seventies that were used for naval signaling. Inventors Clarence Gilliam and Thomas Hall patented the first Chemical Lighting Device in October 1973 (Patent 3,764,796). However, it is not clear who patented the very first glowstick designed for play. In December 1977, a patent was issued for a Chemical Light Device to inventor Richard Taylor Van Zandt (U.S. Patent 4,064,428). Zandts design was the first to add a steel ball inside the plastic tube that when shook would break the glass ampoule and start the chemical reaction. Many toy glowsticks were built based on this design. Modern Glow-in-the-Dark Science Photoluminescence spectroscopy is a contactless, nondestructive method of probing the electronic structure of materials. This is from a patent-pending technology developed at Pacific Northwest National Laboratory that uses small organic molecule materials to create organic light-emitting devices (OLEDs) and other electronics. Scientists in Taiwan say they have bred three pigs that glow-in-the-dark.

Introduction to HIV/AIDS

Introduction to HIV/AIDS NAMES OF MEMBERS K.J. TIKISO M.J. MOHOLOHOLO M.R. MATUKA J,M. MOHOLO M.O. MLOTUMI HIV and AIDS outline (Foreword): HIV and AIDs is the most threatening disease which everyone on this planet earth is scared to contact the virus, simply because there is no medication found to cure the virus yet. The disease leaves most of the children without parents and some instances with single parents. An unfortunate part about the disease is that some of the health workers don’t have choice to when it comes to which patients they can treat, e.g. Hospital workers and Emergency Service workers. The aim of these projects set as and educational (awareness) tool, identify methods of counselling and support services in the emergency medical service environment. Glossary of terms AIDS- Stands for Acquired Immune Deficiency Syndrome which means the body loses its ability to fight infections; HIV weakens the immune system Anal intercourse -Penetration of the anus of a man or female Antibody- A specific protein made by a person’s white blood cells to fight a disease; for example, antibodies are produced against the different kinds of colds, flu and HIV. Anus- Opening at back of body through which waste matter is AZT A – drug that attacks the HIV/AIDS virus and slows down the disease. Blood transfusion receiving blood after a major accident or certain operations. Carrier – Someone who is infected with HIV/AIDS. Condom- A contraceptive usually made of thin latex rubber and worn on an erect penis; condoms greatly reduce the chances of both males and females catching sexually transmitted infections, including HIV/AIDS Confidential- Information that must not be told to others. Counselling- Talking to someone about their concerns and helping them deal with their problems; pre-test counselling involves talking to someone and explaining the consequences if the result is positive. Counsellor – Someone who listens to your p roblems and gives you advice. Co-workers- Means people you work with. Diarrhoea- Upset (runny) stomach Discharge- Pus or moisture that oozes from an infected area. Discrimination- Treating people unfairly or differently from yourself based on prejudice. Donating blood- Giving blood to be used in medical emergencies. Epidemic – A disease that spreads fast from one person to another person. Expiry date- Date limited for something to be used for certain period. False negative- Is a blood test for HIV that does not clearly show the presence of HIV in a particular person with HIV; this may happen if the test is done before the person has developed antibodies that will show up in a test. False positive- A blood test for HIV that shows the presence of HIV in a person who does not have HIV; this happens when the test finds antibodies to another organism. Female condom – A contraceptive usually made of thin latex rubber and worn inside the vagina; to reduce the chances of both males and females catching sexually transmitted infections, including HIV/AIDS. Germ- Tiny, living things that may bring illness. HIV- Human Immunodeficiency Virus.

Personal Entrepreneurial Viewpoint Essay Example | Topics and Well Written Essays - 1250 words

Personal Entrepreneurial Viewpoint - Essay Example Although the writer (student) may not be able to start his own business, he may not be happy if there is no chance in his work and life to articulate his creativity. He may problems in bringing his ideas to success despite his inventive nature, and other people may end plagiarizing hid ideas. Entrepreneurship enables one to describe an enterprising person as he or she possesses entrepreneurial traits. There are different types of energetic people just as there are various types of entrepreneurs distinguished by their association with business owner management, involvement with new technology, business, motivation, and growth orientation. The inclination to start up and manage projects is referred to as an enterprising tendency. The most ambitious individuals put up projects more frequently and place more innovative projects. This implies that they have to be opportunistic and good at utilizing resources, which include organizational, physical, technological and human resources. The following are qualities of an extremely enterprising person: he takes charge, have a high need for achievement, use of resources to achieve plans and seek opportunities. Others are being innovative and their ability to take risks. Currently, the economy has undergone a transformation from knowledge-based activities to imagination, entrepreneurship, innovation and creativity (Van den Broeck et al. 2008). Increasing technology and globalization impacts have resulted in more business opportunities, but the marketplace has become more crowded and competition has rise (McMullan & Shepherd 2006). Creativity assists the entrepreneur to take action on these opportunities in ways that can result in competitive advantage for the business. It can offer a basis for business growth and innovation as well as leading from the positive impact on the society in general (Bilton 2007). Entrepreneurship happens to all sizes and

Compare and contrast Essay Example | Topics and Well Written Essays - 500 words - 13

Compare and contrast - Essay Example The two writers Dillard and Wolf have given their different essays the theme of how death is approached or embraced. Since death is an ultimate circumstance, which is unavoidable, the question raised is on how to face it (Iowa Council of Teachers of English 49). Death is the antagonist in the two essays. Answers on how to face death vary since having a conflict against death or embracing and accepting peaceful death can be options. The climax of the essay comes when the two moths face their death. Dillard in her essay has portrayed an approach to death, which involves struggling and running away. Contrarily, Woolf has given death an acceptable approach in that death is experienced calmly (Woolf 7). The two essays by Annie Dillard and Virginia Wolf compare superficially in that they have a similar title â€Å"death of a moth†, which go on to exemplify the theme of conflict with death. In the two essays, the writers have focused on depicting how the moths face their death. The moths are the characters of the essays propelling the theme being addressed (Woolf 8). The essays also compare in that the moths seem to be conscious of the fate waiting, which in this case is death. The two essays are also similar because they show that it does not matter the form of death or approach of dying, death is definitive (Iowa Council of Teachers of English 51). Woolf’s moth rotates around the window; its life has been limited around the window pane, which happens to be the same spot where it meets its death. Dillard’s moth meets its death after being burnt by a candle flame while flying around it. In the two essays, the approaches to death are different taking into consideration the description from Woolf and Dillard (Iowa Council of Teachers of English 52). In wolf’s essay, she portrays the moth in a way that it accepts death the moth is brave enough to embrace death in a dignified manner. Contrarily, in

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I dont have a paper that is why i am here setter. Above all, it means having the freedom to lead rather than being obliged to follow† (p.36). In looking at these definitions it can be seen that there are many different types of leadership. Several examples might be transformational, charismatic, and entrepreneurial leadership. Entrepreneurial leadership is vital to an individual and to a corporation’s success. Entrepreneurial firms are a major source of innovation and change. They create jobs, new tax revenues, and other transfers of money. At a time when U.S. productivity growth is lagging behind other countries, and when our large corporations are laying off workers and focusing on core businesses, entrepreneurial firms assume a more significant role; They do what large companies are not doing (Miner, 1997, p.54). Definitions of Entrepreneurial Leadership Stevenson, Roberts, & Grousbeck (as cited in Morris, Avilla, & Allen, 1993) Define entrepreneurship as â€Å"The process of creating value by bring together a unique package of resources to exploit an opportunity† (p.56). Furthermore, (Covin & Slevin, 1989; Miles & Arnold, 1991; Miller & Friesen, 1983) also cited (Morris et al., 1993): The process itself consists of the set of activities necessary to identify an opportunity, develop a business concept, and then manage and harvest the venture. As a process, it has applicability to organizations of all sizes and types. The entrepreneurship construct has three underlying dimensions: innovativeness, or the development of novel or unique products, services or processes; risk-taking, or willingness to pursue opportunities having a reasonable chance of costly failure; and proactiveness, or an emphasis on persistence and creativity in overcoming obstacles until the innovative concept is fully implemented (p.596). Entrepreneurial Leadership within Management Success for entrepreneurs requires innovation. There are several ways to achieve this according to Drucker: 1. Entrepreneurial manag ement first requires that the organization be made receptive to innovation and willing to perceive change as an opportunity rather than a threat. It must be organized to do the hard work of the entrepreneur and create the entrepreneurial climate. 2. It secondly requires systematic measurement—or at least systematic appraisal—of a company’s performance as entrepreneur and innovator, and built-in learning to improve performance. 3. Thirdly, entrepreneurial management requires specific practices with respect to organization structure, staffing, management compensation, incentives, and rewards (p.33). Not only is innovation a key factor in the success of entrepreneurial management but, an important issue that needs to be brought to management’s attention; individualism and collectivism within the corporation.

A review of recent UK Serious Case Reviews relating to vulnerable adults Essay

Serious Case Reviews (SCRs) concerning vulnerable adults have been laid out to assess the manner in which experts and organizations operated jointly to protect a susceptible adult or have an effect after harm or demise of a susceptible adult in cases of interests to do with organization’s activities or operations. There lacks a national network in the UK for their collation and psychoanalysis (Manthorpe & Martineau, 2010). This review of recent SCRs in the United Kingdom employs three themes that encompass staff affiliations; family and professions; life history and chronology with the intention of extracting substance appropriate to social work strategy and performance. SCRs with respect to susceptible adults and questions carried out UK adult protection or defense boards at regional position after the occurrence of harm or demise had little or no scrutiny (Brown, 2009). This paper reflects on the role and influence of serious case reviews in safeguarding vulnerable adults. S uggestions on Serious Case Reviews are offered in line with the perspective of the recent review of the vulnerable adult protection in the UK that obtained demands for the operations of Serious Case Reviews to be more constant and for teachings obtained to be assessed and more broadly passed amid social employees, other experts, regulators, and stakeholders. During a period when the UK government declared policies for Serious Case Reviews for adults to shift to a legal foundation, this study focuses on their prospective as knowledge materials, but also on their role and impact. Information collection                      The results applied in this study shape a section of a larger research that constituted an analysis of some Serious Case Reviews implemented in the United Kingdom from the time of the emergence of In Safe Hands and No Secrets. Moreover, interviews through cell phones with some experts knowledgeable in such reviews, and study of some Serious Case Review reports played a significant role in this study (Manthorpe & Martineau, 2010). Complete reports of Serious Case Reviews are not easily accessible online or publicly and thus, in the aforementioned reviews, Safeguarding Adults Coordinators (earlier referred to as Adult Protection Coordinators) were called forth to provide Serious Case Review reports that their Board members had earlier commissioned. The Serious Case Review reports differed in volume from 8 to 48 pages. In this study, the reports were reviewed in terms of: †  Contemplations on Serious Case Reviews; †  Methodology or progression; †  Outlay; †  Rationale; †  Reexamination/action plan; †  Review workforce; †  Teachings/recommendations; †  Threshold of Serious Case Review (if this was particularly reflected on), the rationale behind a Serious Case Review being felt as suitable (Aylett, 2009); †  Timescale; †  Type of Abuse (encompassing also disregard) using the groups delineated in No Secrets; †  Underlying principle for Serious Case Review; information concerning the victims, averred abusers and situations (Aylett, 2008). Because this review focused on learning if the reports clearly handled a number of these aspects thus permitting for assessment of the intelligibility and rigidity of the practice, this review applied full reports. Moreover, there exists an appealing balance in a question involving the major narrative, defining the occurrence and its forerunners, and the bureaucratic nature of the proposals (Benbow, 2008). Findings                      The ages of the vulnerable people that were affected or died were reported in age groups while tribe was not reported to sustain strict anonymity. Attributable to the lack of lawful or other fortitudes in a lot of reports, this study refers to averred victims and averred abusers. Some of the articles applied in this research entailed death and proof of disregard or abuse (in case that such abandonment or abuse was evidently contributory to death or not). Other articles entailed assertions of abandonment or mistreatment occurring at the averred victim’s residence attributable to relatives or people given the responsibility of providing care (Cambridge & Parkes, 2006). The rest entailed claims of sexual indignation, abandonment, or abuse with harm nearly causing death, general institutional abandonment, or maltreatment that was caused by pitiable attention and healthcare practices. Purpose                      The reports employed were generally clear concerning the rationale of the Serious Case Review that had been carried out, focusing on viewing this as a way to encourage multi-organization operation and lesson knowledge. This, from a report regarding the demise of a woman aged over 90 years after clearly obstreperous behavior of a relative in the countenance of suggestion that the woman ought to be admitted in a health care facility, is practically distinctive. The reason behind this review is to safeguard susceptible people by concentrating on teachings obtained from the cases and giving suggestions with an intention of curbing similar calamity through intensifying and bettering multi-organization processes and deals. The people carrying out Serious Case Reviews excellently comprehend this form of conceptualization of rationale concerning the notion behind them (Cambridge, Beadle-Brown, Milne, Mansell, & Whelton, 2011). Some local authorities do not have Serious Case Review procedures where to base reviews but adhere to the Mental Capacity Act 2005 whose main objective is to offer a legal structure for conduct and judgment making in aid of adults that do not have the capability to make some choices by themselves. The purpose of this review is: To gain knowledge from experience To better future performance by operating on the learning To enhance multi-organization operation To review protection adults practices This purpose of this review is not concerning blame allotment. In case personal matters come about from any Serious Case Review, they ought to be administered by every organization in accordance with their normal practices. Threshold                      In cases where death has occurred in conjunction with proof or suspicion of abandonment or mistreatment, such cases ought to at all times lead to Serious Case Review. Where there at one time existed potentially acute injury because of possible maltreatment or abandonment and the instance or occurrence creates issues concerning the manner in which local services and experts have operated jointly, then a Serious Case Review ought to be regarded. Similar standards are relevant where mistreatment or abandonment has occurred, in an individual’s residence or care and healthcare setting, or where numerous abusers are probably engaged (Cambridge et al., 2011). In an instance that perhaps ended in death of an elderly woman, the details were identified as lying in the Safeguarding Adult Board’s description of significance on grounds of the severe nature of abandonment and disregard she had encountered. This encompassed occurrences of mistreatment, anyone that was severe enough to lead to a referral to adult protection care in the regional authority, but encountered collective abandonment. Nevertheless, it was outstandingly exceptional for the reports to regard the concern of threshold explicitly thus complicating the knowledge of the rationale for carrying out a Serious Case Review (Cambridge & Parkes, 2006). In simple terms, we fail to gain knowledge of the description of the seriousness being used for a Serious Case Review, or the person that has approved the Serious Case Review as having met its threshold (Cambridge & Parkes, 2006). Furthermore, one of the Serious Case Reviews reviewed, embarked on into an occurrence where demise or severe injury never happened, seemed to create some extremely helpful study for broad extents of organizations and recommends that a different threshold could be a system breakdown. The set back of this review was in the investigation and reporting on the conditions that brought about the letdown of care provision that led to the woman that had a learning disability being disregarded the entire night on a transport bus. Teaching and recommendations from Serious Case Reviews                      The progression of gaining knowledge, the main rationale of Serious Case Reviews, perpetually leads to recommendations. Most of the Serious Case Reviews that were reviewed recognized discrepancies in inter-organization communication, the precise nature of the discrepancy relying, obviously, on the conditions (Aylett, 2009). The reports segregate the poor affiliations involving, for instance, care personnel, police, caregivers (relatives or physicians), the hospital workforce, and the facilities of adult protection in the regional authority. Outstandingly, some of the reports state on a deficiency of intelligibility as to lead organization, a function the regional authority was anticipated to carry out under No Secrets and that studies recommend had been identified and decided. Devoid of the organizations having a clear depiction, the failure to examine appropriately the threats to susceptible adults or that at hand in a care setting turned out to be more comprehensible following this review. This was pooled with a need for insight concerning adult protection measures, affirming a requirement for training or knowledge amid social and medical care personnel. References Aylett, J. (2008). Learning the lessons in training from abuse inquiries – findings and recommendations. Journal of Adult Protection, 10(4), 7-11. Aylett, J. (2009). A model and strategy for multi-agency adult protection training in Kent and Medway. Journal of Adult Protection, 11(1), 13-20. Benbow, S. (2008). Failures in the system: our inability to learn from inquiries. Journal of Adult Protection, 10(3), 5-13. Brown, H. (2009). The process and function of serious case review. Journal of Adult Protection, 11(1), 38-50. Cambridge, P., & Parkes, T. (2006). The Tension between Mainstream Competence and Specialization in Adult Protection: An Evaluation of the Role of the Adult Protection Coordinator. British Journal of Social Work, 36(2), 299-321. Cambridge, P., Beadle-Brown, J., Milne, A., Mansell, J., & Whelton, B. (2011). Adult protection: The processes and outcomes of adult protection referrals in two English local authorities. Journal of Social Work, 11(3), 247-267. Manthorpe, J., & Martineau, S. (2010). Serious case reviews in adult safeguarding in England: an analysis of a sample of reports. British journal of social work, 41(2), 1-18. Source document

Global Warming And Its Effects - 1444 Words

Global warming is an increase in the Earth’s average surface temperature due to greenhouse gases that collect in the atmosphere like a thickening blanket, trapping the sun’s heat and causing the planet to warm up. (â€Å"11 Facts About Global Warming†) Gases such as natural and manmade are trapped in the atmosphere causes the Earth’s surface become warmer. The world is affected by the dangers of global warming, and the major contributor to global warming among the greenhouse gases is CO2 emission. (Chiroma) (CO2 Concentration (ppm)) Most previous studies defined global warming hiatus by making a comparison of the surface temperature change rates between recent decades and the last quarter of the twentieth century, just as they defined the accelerated warming by comparing the growth during the mid-1970s and the late 1990s with the rate of several decades before that. (Wei) Bubbles of air in glacial ice trap tiny samples of Earth’s atmosphere, giv ing scientists a history of greenhouse gases that stretches back more than 800,000 years. The chemical makeup of the ice provides clues to the average global temperature. (Riebeek) Over many years, the earth’s temperatures have increased and will continue keep increasing. Global warming may be caused by man or by nature, but with a great deal of research, an opinion will be formed. With the bare minimum research and knowledge on the topic of global warming, I believe that it is created and will continue to increase by mankind.Show MoreRelatedGlobal Warming And Its Effects985 Words   |  4 PagesEnvironmental Science Professor Mahoney 11/11/14 Global Warming Over the last few decades global warming has become one of the biggest environmental issues of all times. Every year, global warming gets worse and it’s affecting the way people live, it is affecting the atmosphere in general, and other living organisms in our planet. Global warming is the gradual and increasing rise of the overall temperature of the Earth caused by the greenhouse effect due to the increased levels of carbon dioxide andRead MoreGlobal Warming And Its Effects Essay1040 Words   |  5 PagesGlobal warming is directly causing the rise in temperature of the Earth. The melting of the polar ice caps causes some of the most pressing issues including the endangerment of species indigenous to this region and the rise of ocean levels. Global Warming Global warming is the steady rise of temperature of the Earth’s surface. What exactly causes global warming? Numerous sources fuel global warming, such as deforestation, permafrost, and even sunspots. Obviously, many factors contribute to thisRead MoreGlobal Warming And Its Effects1331 Words   |  6 PagesGlobal Warming Global warming is the causation of the Glaciers melting, sea levels rising, cloud forests drying, and wildlife struggles today. Humans are making this possible because of their release of heat-trapping gasses known as greenhouse gasses by their modern devices. Global warming is the abnormal speedy increase in the Earth’s average surface temperature. It is believed that this is due to the greenhouse gasses that people release into the atmosphere by burning fossil fuels.The greenhouseRead MoreGlobal Warming And Its Effects976 Words   |  4 PagesAs global warming, we understand that is the rise in the average temperature of Earth’s atmosphere and oceans. It has been an immense concerning all over the world for the past decades since the current cycle of global warming is changing the rhythms of climate that humans, animals and plants rely on. Scientists have studied the natural cycles and events that are known to influence the change in climate to discover what i s originating the current global warming. However, the amount and pattern ofRead MoreGlobal Warming And Its Effects1571 Words   |  7 PagesAs global issues today become increasingly controversial, many people are inclined to believe that Global Warming is an issue that can take a backseat to more significant issues that plague today’s society. The information presented throughout my research in regards to the rising sea levels and the melting of glaciers and ice shelves, highly indicates that it cannot. What many Americans fail to realize is that if sea levels continue to rise due to Global Warming, then more than half of LouisianaRead MoreGlobal Warming And Its Effects1544 Words   |  7 PagesGlobal warming is one of the vigorously discussed topic on Earth today. According to a TechMedia Network, â€Å"Global warming is the term used to describe a gradual increase in the average temperature of the Earth’s atmosphere and its oceans, a change that is believed to b e permanently changing the Earth’s climate.† (â€Å"Global Warming †¦ Effects†). We have been witnessing the change in Earth’s climate since past few years, and we are well aware of the consequences of climate change as well. Global warmingRead MoreGlobal Warming And Its Effects1432 Words   |  6 Pageshas an effect on climate change and contributes to global warming. Yet people tend to turn a blind eye to global warming and label it as a myth, whether they do not believe in it or it is not in their best financial interest to believe in it. Let us take a closer look at global warming and the effects it has on our people, homes and environments. Global Warming has become a rising problem in our world’s climate. It’s time we show the initiative to understand the concept of global warming and showRead MoreGlobal Warming And Its Effects928 Words   |  4 PagesGlobal-Warming Mother Earth is burning as we speak; humanity has killed our precious Earth. Global-warming is a vicious killer that was created by the humans on this Earth, and there s no way to cure it. We, as humans, have the power to cleanse the Earth, but instead we destroy it. Heat is absorbed by carbon dioxide and greenhouse gases. A greenhouse gas absorb thermal radiation emitted by the Earth s surface. As the sun s energy reaches the Earth’s surface some of it goes back out into spaceRead MoreGlobal Warming And Its Effects1416 Words   |  6 Pages Global Warming The earth is getting warmer, animals and their habitats are declining, human health is at risk and the cause of all this terror is Global Warming. Global warming will cause many parts of the world to change. In the next 50 years climate change could be the cause of more than a million terrestrial species becoming extinct. Sea levels will raise which means more flooding and is not good for the plants. With too much water the plants will die and herbivores will lose theirRead MoreGlobal Warming And Its Effects1312 Words   |  6 PagesGlobal warming is presenting a lot of environmental and health problems to many countries. A lot of heat gets trapped on earth due to formation of a non-porous layer gases below the atmosphere. The worst effect is felt by developing countries, which are also geographically disadvantaged. The establishment of such countries is on low altitude areas. This position makes developing countries to be direct victims of floods from the melting snow at high altit ude areas. A lot of scientific research associates