Thursday, October 31, 2019

Dimensions of Community Environmental Health Essay

Dimensions of Community Environmental Health - Essay Example Alcohol intake is a personal choice and the character exhibits the effect of this poison on his physical strength as well as his personality. Steady drinking of alcohol for a long period of time results in the dependence of the brain and also leads to withdrawal manifestation during episodes of abstinence. Alcoholism is a major health hazard and affects normal brain’s chemistry, blood flow to frontal lobes and the nerve cells. Over time, neurotransmitters such as serotonin, dopamine is depleted leading to mood problems, physical weakness, liver pathologies and increasing dependence (A.D.A.M) Smoking is another example of a voluntary source of health hazard that has an effect both on the environment and public health. The tobacco smoke contains 43 carcinogens which are known out of the thousands of chemicals present in it. Although, smokers are exposed to high incidence of lung cancer, voice changes, and other health hazards, but the people who are exposed to the smoke are also at risk. Lung cancer can also occur in non-smokers who are exposed to the tobacco smoke, and it can lead to childhood disorder such as bronchitis and heart disease (Brownson, Eriksen, Davis and Warner 163). Because of the very strong carcinogenic effects, public health measures have progressed over the years. This has resulted in workplace restrictions to smoking, bans on public smoking and even voluntary measures taken in private industries.

Tuesday, October 29, 2019

Connecting assets and choosing your community Research Paper

Connecting assets and choosing your community - Research Paper Example Firstly, research findings indicate that sedentary lifestyles predispose children to obesity (Ogden et al., 2014). As such, open spaces and play areas are critical to increasing physical activity. Secondly, effective obesity prevention initiatives require a multidisciplinary approach by various healthcare professions (Saxe, 2011). Therefore, healthcare expertise will bring together physicians, psychologists, dieticians and other support staff. Thirdly, high-calorie foods contribute largely to the risks of childhood obesity. High-calorie foods are more appealing to low-income houses because they are less expensive (Ogden et al., 2014). Consequently, holistic and sustainable food policies will increase access to both affordable and healthy foods. In the same vein, the policies will also increase opportunities for physical activity. For example, the city planning department can formulate policies that will require residential developers to provide playgrounds and gym facilities. Fourthly, childhood obesity predisposes children to the risk of chronic diseases, which include Type 2 diabetes and blood pressure (Ogden et al., 2014). Diagnostic tools for blood pressure and Type 2 diabetes will ensure early diagnosis and management. Furthermore, Body Mass Index (BMI) charts will be necessary to identify the risk level among children. Finally, health education is a critical nursing intervention in the sense that it gives individuals greater control over their health and well-being (Saxe, 2011). Conference facilities are thus required to educate parents and family members about healthy lifestyles. One partner does not own the identified assets. Accordingly, the nursing plan will incorporate assets from different partners. Potential partners will include the mayor of the city, health providers within the community, community-based organizations, religious leaders, and parents. All theses

Sunday, October 27, 2019

Defining And Understanding Holography Physics Essay

Defining And Understanding Holography Physics Essay Holography,  method  of  obtaining three-dimensional photographic images. These images are obtained without a lens, so the method is also called lensless photography. The records are called holograms (Greek holos, whole; gram, message). The theoretical principles of holography were developed by the British physicist Dennis Gabor in 1947. The first actual production of holograms took place in the early 1960s, when the laser became available. By the late 1980s the production of true-color holograms was possible, as well as holograms ranging from the microwave to the X-ray region of the spectrum. Ultrasonic holograms were also being made, using sound waves. Holography  is one of the remarkable achievements of a modern science and technology. Holograms have unique property to restore the high-grade volumetric image of real subjects. The word holography originated from the Greek words holos whole and grapho write, that means complete record of the image. Holography represents photographic process in a broad sense of this word, essentially differs from a usual photo because there is a registration not only  intensity  in a photosensitive material, but also  phase  of light waves, scattered by the object and carried the complete information about three-dimensional structure of the object. As the medium of mapping of the reality, hologram has unique property: unlike usual photo, the  holographic image  can reproduce exactly three-dimensional copy of the original object. Such image with set of views, varied with change of supervision, has amazing realness and often looks like the real object. Unlike photography or painting, holography can render an object with complete dimensional fidelity. A hologram can create everything your eyes see size, shape, texture and relative position. However, if you try to touch a holographic image, all youll find is focused light. History of holography Holography is known from 1947 when British (native of Hungary) scientist Dennis Gabor   produced the theory of holography while he was trying to improve the resolution of electron microscope .Gabor coined the term which we know today i.e. holography by the greek word holos, which means whole while gramma means message. Further development in the field was during the next period because light sources available at that time was not truly coherent . This problem was overcome in  1960  by Russian scientists  N. Bassov  and  A. Prokhorov  and American scientist  Charles Townswith by the invention of the laser, whose pure, intense light was ideal for making holograms. In that year the pulsed-ruby laser was developed by Dr.  T.H. Maimam. This laser system  (unlike the continuous wave laser normally used in holography) emits a very powerful burst of light that lasts only a few nanoseconds (a billionth of a second). It effectively freezes movement and makes it possible to produce holograms of high-speed events, such as a bullet in flight, and of living subjects. The first hologram of a person was made in  1967, paving the way for a specialized application of holography: pulsed holographic portraiture. In  1962  Emmett Leith and Juris Upatnieks of the University of Michigan recognized from their work in side-reading radar that holography could be used as a 3-D visual medium. In 1962 they read Gabors paper and simply out of curiosity decided to duplicate Gabors technique using the laser and an  off-axis technique  borrowed from their work in the development of side-reading radar. The result was the first laser transmission  hologram of 3-D objects (a toy train and bird). These transmission holograms produced images with clarity and realistic depth but required laser light to view the holographic image. Their pioneering work led to standardization of the equipment used to make holograms. Today, thousands of laboratories and studios possess the necessary equipment: a continuous wave laser, optical devices (lens, mirrors and beam splitters) for directing laser light, a film holder and an isolation table on which exposures are made. Stability is absolutely essential because movement as small as a quarter wave- length of light during exposures of a few minutes or even seconds can completely spoil a hologram. The basic off-axis technique that Leith and Upatnieks developed is still the staple of holographic methodology. Also in  1962  Dr.  Yuri N. Denisyuk  from Russia combined holography with 1908 Nobel Laureate Gabriel Lippmanns work in natural color photography.  Denisyuks approach  produced a white-light reflection hologram which, for the first time, could be viewed in light from an ordinary incandescent light bulb. Another major advance in display holography occurred in  1968when Dr.  Stephen A. Benton  invented white-light transmission holography while researching holographic television at Polaroid Research Laboratories. This type of hologram can be viewed in ordinary white light creating a rainbow image from the seven colors which make up white light. The depth and brilliance of the image and its rainbow spectrum soon attracted artists who adapted this technique to their work and brought holography further into public awareness. Bentons invention is particularly significant because it made possible mass production of holograms using an embossing technique. These holograms are printed by stamping the interference pattern onto plastic. The resulting hologram can be duplicated millions of timesfor a few cents apiece. Consequently, embossed holograms are now being used by the publishing, advertising, and banking industries. In  1972  Lloyd Cross  developed the integral hologram by combining white-light transmission holography with conventional cinematography to produce moving 3-dimensional images. Sequential frames of 2-D motion-picture footage of a rotating subject are recorded on holographic film. When viewed, the composite images are synthesized by the human brain as a 3-D image. In 70s Victor Komar and his colleagues at the All-Union Cinema and Photographic Research Institute (NIFKI) in Russia, developed a prototype for a projected holographic movie. Images were recorded with a pulsed holographic camera. The developed film was projected onto a holographic screen that focused the dimensional image out to several points in the audience. Holographic artists have greatly increased their technical knowledge of the discipline and now contribute to the technology as well as the creative process. The art form has become international, with major exhibitions being held throughout the world. The commonly and widely used way of imaging of the reality is the photography. A photograph is basically the recording of the differing intensities of the light reflected by the object  and imaged by a lens. However, information about dimensions of the object contained not only in amplitude (intensity), but also in a phase of light waves. A great difference between holography and photography is the information recorded. This difference is why photographs are two dimensional (2-D) images while holograms are three dimensional (3-D) images. Photographs contain only one view point of an object. Our eyes need a minimum of two view points in order to see depth. Vision using two viewpoints of an object is called stereoscopic vision. Each eye receives a slightly different view point of an object, our brain combines the two and we perceive depth. We can fool our eyes into seeing photographs in three dimensions by taking two slightly different views of an object and allowing each eye to see only one image, the right image for the right eye and the left image for the left eye. We can do this with a stereoscope (for pictures) or with polarized glasses (for movies). The shortcoming of stereoscopic images is that when we move our head from side to side or up and down, we still only see the same two view points, whereas we should be seeing continuously changing viewpoints of the object. The image therefore doesnt quite appear to be three dimensional. In order to make a record of a three dimensional object we need to record this continuous set of viewpoints of the object. Estimating sizes of the objects and considering shape  and direction of shadows from these objects, we can create in our mind general representation about volumetric properties of the scene, represented in a photo. But, if sizes of the objects are identical and there are no shadows, volumetric content of the photographed scene is completely lost. For example, we can not define in the photo of snowflakes on a dark background, which of them is closer, and which of them is farther. Holography is the only visual recording medium that can record our three-dimensional world on a two-dimensional recording medium and playback the original object or scene to the unaided eyes as a three dimensional image. The image demonstrates complete parallax and depth-of-field and floats in space either behind, in front of, or straddling the recording medium.

Friday, October 25, 2019

UK Institutions Promoting Health of Ethnic Minority Women Essay

This essay intends to give a critical analysis of interagency working to promote the health of ethnic minority women suffering from domestic violence. The essay starts with a definition of health and then briefly looks at varying definitions of public health and how these definitions lend credence to need for interagency working in public health. The essay then looks at the social construct of community and minority communities (BME) in England and Wales, health inequalities and the geographical spread of inequalities across areas of deprivation and the spearhead authorities with a brief discussion on the social determinants of health. This will be followed by a definition of domestic violence and how the concept of culture, especially in minority communities impacts on domestic violence and how domestic violence among ethnic minority women relates to public health. There will be a discussion on two models of health that can be used to formulate interventions which are relevant to th e needs of ethnic minority. The last part of the essay will discuss the role organisations can play to support victims of domestic violence and how the structure and culture of the organisation can influence positive outcomes and enhance better interagency working. Finally, a critical analysis of interagency working will be given suggesting how services can be improved. Public Health Health as defined by the world health organisation is â€Å"a state of complete physical, mental, and social wellbeing and not merely the absence of disease or infirmity (Bury 2005). According to the world health organization, â€Å"health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity† (WHO, 1948). The term publi... .... The Journal of Law, Medicine & Ethics, 30: 144–149. doi: 10.1111/j.1748-720X.2002.tb00381.x Rhonda, P. and Pittman, R. (2009) an introduction to community development USA: Routledge. Blaxter, M. (2004) health, Cambridge: polity press. Department of Health (2004) Tackling health inequalities: the spearhead group of Local Authorities and Primary Care Trusts Bartle, Phile WHAT IS COMMUNITY? A Sociological Perspective web publication available online at http://www.scn.org/cmp/whatcom.htm NIMHE (2003) Inside-Outside: Improving Mental Health Services for Black and Minority Ethnic Communities in England Roger Ottewill and Ann Wall (2004) Item 2 Models of health and health care available online at https://www.ihm.org.uk/documents/Education/mhsc_resource_file/diploma_managing_your_enterprise/Diploma_managing_your_enterprise_models_of_health_and_health_care

Thursday, October 24, 2019

Public Schools Segregation Essay

I was recently struck by one of the political cartoons in the SacramentoBee newspaper, which presented an image comparison of drinking fountains in two schools. It quickly reminded me of the racist Jim Crow laws from the 1880s-1960s and how racial segregation existed almost everywhere in the United States at that time. However, I realize that this cartoon doesn’t portray the concept of racial segregation with a Jim Crow joke, but it makes a commentary on social segregation among public schools in the United States today. I slowly realized that all American public schools are not the same due to funding. The huge difference exists in the public school system because their funding is associated with local property taxes. If a school is located in an affluent area with wealthier residents who pay high property taxes, schools will receive more funding (School Funding 1). Do you think this system is fair? If I ask affluent parents, they probably would answer that they pay high property taxes, so their money should go straight to nourish public schools in their areas. Meanwhile, if I were to ask parents in low socioeconomic areas, they would say that funds should be distributed from the state and not by the county, which would help in reducing the inequality between schools. Although sharing funds is not fair for many affluent people who pay more taxes, we should encourage state governments to aid the poorer schools more because it helps to reduce poverty and prevent crimes in lower income neighborhoods. The first reason that poorer schools should get more funds is to reduce poverty. People in low-income areas might not get the direct effect from school funding, but in the future, their kids will be benefited greatly. For those in the low income bracket, education can be a legitimate way to help them climb out of poverty. However, in reality, most of these poorer schools today are still not treated equally as their richer counterparts. Lisa Black, Chicago Tribune reporter reviewed the vast difference between two public schools in the Chicago area to illustrate this point. The first school, Taft Elementary School in Lockport can’t offer students any arts, language or technology classes because of the limited budget available. Meanwhile, Rondout Elementary School, near Lake Forest, offers language programs such as Spanish in every grade including kindergarten. Most students use laptops in the class, and they can enjoy band and chorus classes. They can choose to study various art, drama and dance as well (Black 1). If poor children had the same opportunity as their counterparts, imagine the growth it could represent to them educational. If they enjoyed studying, they could move on to obtain higher education by attending to colleges, meaning better-paying jobs. Therefore, funds should be available for all people. Young minds deserve the opportunity to choose the programs that they want to study. They should be able to study art and any other subject, as they desire to, regardless of how much property tax their parents pay. In general, I believe that a good education is the foundation that can pave the way to a better quality of life. Aside from reducing poverty, preventing crimes is another reason that poorer schools should receive more funds. Crimes in lower income areas derive from being unable to sustain a decent living. These types of crimes can be directly connected to a lack of education and opportunity. Geoffrey Wodtke, a sociologist at the University of Michigan, mentions in his article that kids in poor neighborhood have less chance to graduate from high school (Wodtke 1). He also states: Poor neighborhoods are isolated and racially segregated, with none of the quality schools, day care, grocery stores, pharmacies, and parks that can help promote a child’s development and academic achievement; and they are disproportionately smoggy, crime-ridden and dilapidated. All of these factors, the researchers note, have been linked to poor performance in school, often culminating in dropouts. (1) Wodtke claims that poor neighborhoods affect school performance, and this can impact a child’s learning directly. Some children quit the schools because they have no interest in schooling. Dropping out is and having no high school diploma will limit a job opportunities. When they are not qualified for many jobs, they can’t escape the pitfalls of poverty. Therefore, some of them end up finding illegal ways to make money while others affiliate themselves with gangs (Wodtke 2). This is the reason why school is so important, because it is a good place to start children on equal footing educationally with the chance to better themselves in the future. However, schools in low-income areas still need more funds to afford having a variety of programs such as language, art and sports. Schools also need to be able to hire and retain qualified teachers. Moreover, every school should be able to afford sport programs, which is a good physical outlet for youthful energy and encourages good health and teamwork. Art programs should also be available because they provide an outlet to express creativity. A wider variety of activities and educational alternatives can create brighter and more promising futures if given the opportunities. These children can become doctors, football players or artists in the future as long as they get a fair amount of support from the beginning. It’s difficult to change the living environment in poorer neighborhoods, but we can start by improving the school system to reshape the future of that community. Some people think that pouring money into poor schools is wasteful. They believe the reason schools become poorly performing ones is because they are full of under-achieving students who lack interest in the curriculum. Even if some schools get more funds, it will not change anything. It’s like treating symptoms, but not starting at the root of the problem. They believe that the government should provide more funding to schools with higher achieving students who potentially will become successful contributing members of the community. In other words, the state government should invest in the right schools and students. However, I believe this thought to be completely wrong. People who believe this will never know the potential of students in lower-income schools unless they are given a fair and equal opportunity to succeed. If poorer schools receive more funding, they will be able to provide better facilities and a stronger variety in the curriculum. These factors would increase the chances that we see more students grow into productive and successful adults despite coming from lower class surroundings. When every school has the same resources and variety of programs available to their youths, political cartoons like this one will be a thing of the past because the educational system’s inequalities will no longer be a joke. We should call for action on the funding to reform poorer schools because education can help in reducing poverty and crimes in these neighborhoods. Although affluent parents who work harder and pay more property taxes might oppose an idea of distributed funding to poor schools, they should think about economic consequences. If a gap between rich schools and poor schools is still expanding, how can the children of today become responsible adults in the future? If this country is the land of freedom and opportunity for everyone, I should hope that schools would be the first place to start by giving equal opportunities to all children. Poorer schools should receive equal opportunities like those of the children in wealthier communities. Schools should be a sacred place where all children of any social standing are afforded the same opportunities of unlimited educational growth. The more we see children shine in their youth, the more likely they will rise up to become successful in the future and this will help strengthen the future of the United States’ socially and economically.

Wednesday, October 23, 2019

Formation of a Company Essay

Refers to the entire process by which a company is brought into existence. It starts with the conceptualisation of the birth a a company and determination of the purpose for which it is to be formed. The persons who conceive the company and invest the initial funds are known as the promoters of the company. The promoters enter into preliminary contracts with vendors and make arrangements for the preparation, advertisement and the circulation of prospectus and placement of capital. However, a person who merely acts in his professional capacity on behalf of the promoter (eg lawyer, CA, etc) for drawing up the agreement or other documents or prepares the figures on behalf of the promoter and who is paid by the promoter is not a promoter. The promoters have certain basic duties towards the company formed :- In case of default on the part of the promoter in fulfilling the above duties, the company may :- A promoter may be rewarded by the company for efforts undertaken by him in forming the company in several ways. The more common ones are :- If the promoter fails to disclose the profit made by him in course of promotion or knowingly makes a false statement in the prospectus whereby the person relying on that statement makes a loss, he will be liable to make good the loss suffered by that other person. The promoter is liable for untrue statements made in the prospectus. A person who subscribes for any shares or debenture in the company on the faith of the untrue statement contained in the prospectus can sue the promoter for the loss or damages sustained by him as the result of such untrue statement. II. Incorporation by Registration : The promoters must make a decision regarding the type of company i. e a pulic company or a private company or an unlimited company, etc and accordingly prepare the documents for incorporation of the company. In this connection the Memorandum and Articles of Association (MA & AA) are crucial documents to be prepared. Memorandum of Association of a company : Is the constitution or charter of the company and contains the powers of the company. No company can be registered under the Companies Act, 1956 without the memorandum of association. Under Section 2(28) of the Companies Act, 1956 the memorandum means the memorandum of association of the company as originally framed or as altered from time to time in pursuance with any of the previous companies law or the Companies Act, 1956. The memorandum of association should be in any of the one form specified in the tables B,C,D and E of Schedule 1 to the Companies Act, 1956. Form in Table B is applicable in case of companies limited by the shares , form in Table C is applicable to the companies limited by guarantee and not having share capital, form in Table D is applicable to company limited by guarantee and having a share capital whereas form in table E is applicable to unlimited companies. Contents of Memorandum : The memorandum of association of every company must contain the following clauses :- Name clause The name of the company is mentioned in the name clause. A public limited company must end with the word ‘Limited’ and a private limited company must end with the words ‘Private Limited’. The company cannot have a name which in the opinion of the Central Government is undesirable. A name which is identical with or the nearly resembles the name of another company in existence will not be allowed. A company cannot use a name which is prohibited under the Names and Emblems (Prevntion of Misuse Act, 1950 or use a name suggestive of connection to government or State patronage. Domicile clause The state in which the registered office of company is to be situated is mentioned in this clause. If it is not possible to state the exact location of the registered office, the company must state it provide the exact address either on the day on which commences to carry on its business or within 30 days from the date of incorporation of the company, whichever is earlier. Notice in form no 18 must be given to the Registrar of Comapnies within 30 days of the date of incorporation of the company. Similarly, any change in the registered office must also be intimated in form no 18 to the Registrar of Companies within 30 days. The registered office of the company is the official address of the company where the statutory books and records must be normally be kept. Every company must affix or paint its name and address of its registered office on the outside of the every office or place at which its activities are carried on in. The name must be written in one of the local languages and in English. Objects clause This clause is the most important clause of the company. It specifies the activities which a company can carry on and which activities it cannot carry on. The company cannot carry on any activity which is not authorised by its MA. This clause must specify :- In case of the companies other than trading corporations whose objects are not confined to one state, the states to whose territories the objects of the company extend must be specified. Consequences of an ultravires transaction :- However, the doctrine of ultra-vires does not apply in the following cases :- The following are exceptions to the rule of limited liability of members :- Capital clause The amount of share capital with which the company is to be registered divided into shares must be specified giving details of the number of shares and types of shares. A company cannot issue share capital greater than the maximum amount of share capital mentioned in this clause without altering the memorandum. Association clause A declaration by the persons for subscribing to the Memorandum that they desire to form into a company and agree to take the shares place against their respective name must be given by the promoters. Articles of Association The Articles of Association (AA) contain the rules and regulations of the internal management of the company. The AA is nothing but a contract between the company and its members and also between the members themselves that they shall abide by the rules and regulations of internal management of the company specified in the AA. It specifies the rights and duties of the members and directors. The provisions of the AA must not be in conflict with the provisions of the MA. In case such a conflict arises, the MA will prevail. Normally, every company has its own AA. However, if a company does not have its own AA, the model AA specified in Schedule I – Table A will apply. A company may adopt any of the model forms of AA, with or without modifications. The articles of association should be in any of the one form specified in the tables B,C,D and E of Schedule 1 to the Companies Act, 1956. Form in Table B is applicable in case of companies limited by the shares , form in Table C is applicable to the companies limited by guarantee and not having share capital, form in Table D is applicable to company limited by guarantee and having a share capital whereas form in table E is applicable to unlimited companies. However, a private company must have its own AA. The important items covered by the AA include :- Alteration of articles of association : A company can alter any of the provisions of its AA, subject to provisions of the Companies Act and subject to the conditions contained in the Memorandum of association of the company. A company, by special resolution at a general meeting of members, alter its articles provided that such alteration does not have the effect of converting a public limited company into a private company unless it has been approved by the Central Government. The articles must be printed, divided into paragraphs and numbered consequently and must be signed by each subscriber to the Memorandum of Association who shall add his address, description and occupation in presence of at least one witness who must attest the signature and likewise add his address, description and occupation. The articles of association of the company when registered bind the company and the members thereof to the same extent as if it was signed by the company and by each member. III. Registration of the Company Once the documents have been prepared, vetted, stamped and signed, they must be filed with the Registrar of Companies for incorporating the Company. The following documents must be filed in this connection :- {text:list-item} {text:list-item} {text:list-item} Certificate of Incorporation Once all the above documents have been filed and they are found to be in order, the Registrar of Companies will issue Certificate of Incorporation of the Company. This document is the birth certificate of the company and is proof of the existence of the company. Once, this certificate is issued, the company cannot cease its existence unless it is dissolved by order of the Court. IV. Commencement of Business A private company or a company having no share capital can commence its business immediately after it has been incorporated. However, other companies can commence their activities only after they have obtained Certificate of Commencement of Business. For this purpose, the following additional formalities have to be complied with :- If a company has share capital and has issued a prospectus, then :- {text:list-item} {text:list-item} {text:list-item} {text:list-item} {text:list-item} {text:list-item} {text:list-item} Once the above provisions have been complied with, the Registrar of Companies grants â€Å"Certificate of Commencement of Business† after which the company can commence its activities