User:Vaishali12/sandbox

Advantages and disadvantages Advantages

Digital presentation tends to be better overall, particularly with a good signal, due to the elimination of visible interference and other effects such as ghosting. With a weaker signal there is little perceptible difference in digital presentations. It is easier to obtain the optimum digital picture than the optimum analogue picture. Many more channels can fit on the same spectrum under digital transmission. Interactive (red button) services can be provided.

Disadvantages

It can be quite difficult to adjust the antenna, because of the lack of feedback that would be provided by a gradually degraded analog picture. The picture is usually either totally on or totally off, providing no information about which direction to move the antenna. A signal meter provided on most tuners helps considerably with this problem, but some televisions lack a signal meter. The same problem can also make it very difficult to select and test antennas. New equipment (set-top box) may be required. Increased electricity consumption by the digital receiving equipment if both TV and additional set-top box is plugged. An upgraded antenna installation may be required. Analogue requires lower signal strength to get a viewable picture. By extension, digital does not degrade as gracefully as analogue. This is because digital signal transmission suffers from the cliff effect; meaning that once the signal degrades beyond a certain point, the receiver fails to decode the signal and cannot present the expected output. Switching channels is slower because of the time delays in decoding digital signals.

ReceptionPeople living with HIV/AIDS face increased challenges in maintaining proper nutrition. Despite developments in medical treatment, nutrition remains a key component in managing this condition. The challenges that those living with HIV/AIDS face can be the result of the viral infection itself or from the effects of anti-HIV therapy (HAART).[1]

Some of the side effects from HAART that may affect how the body absorbs and utilizes nutrients include fatigue, nausea, and poor appetite.[2] As well, the nutritional needs of people with HIV/AIDS are greater due to their immune system fighting off opportunistic infections that do not normally cause disease in people with healthy immune systems.[3] Medication along with proper nutrition is a major component of maintaining good health and quality of life for people living with HIV/AIDS.  AIDS Education Global Information System From Wikipedia, the free encyclopedia Jump to: navigation, search

The AIDS Education Global Information System (AEGIS) is the world's largest Database of AIDS information. It was originally started as a small electronic bulletin board system (BBS) by Orange County resident Jamie Jemison in 1986. Sister Mary Elizabeth Clark, a transgender pioneer, and US Navy/US Army veteran took it over in 1990, inspired by meeting an isolated young man with AIDS in rural Missouri. Under her direction and tireless effort, the database grew mightily and is now a key reference point for both popular and scientific information on AIDS. In 1996, AEGiS was reorganized as a 501c(3) not-for-profit organization and has been a leading on-line HIV/AIDS educator, logging millions of page views each year.

The AEGIS web site contains scientific abstracts from local, regional and international AIDS conferences, related news, reports, and journal articles, all compiled into a fully indexed, cross-referenced and keyword searchable database.

Extensive HIV/AIDS History

Many accounts of the earliest days of the epidemic are found within the database. Among AEGiS' unique collection is a Morbidity and Mortality Weekly Report entitled, Pneumocystis Pneumonia - Los Angeles, that dates back to June 5, 1981. This was the first document to depict the human immunodeficiency virus, well before the disease even had a name. In some cases, these dated publications are only available through our archive. Because hindsight is often wiser than foresight, AEGiS makes documents such as these accessible to show how the world reacted to this disease, what happened and when.

AEGIS is funded by Broadway Cares/Equity Fights AIDS, The US National Library of Medicine's (NLM) HIV/AIDS Community Information Outreach Program, the Elton John AIDS Foundation, and the Pacific Life Foundation and by AEGiS visitors.

AEGIS was nominated to the United Nations Educational, Scientific, and Cultural Organization's (UNESCO) "Memory of the World" programme in 1999, based on its comprehensive coverage of the global AIDS pandemic.

AEGIS subscribes to the Health On The Net Foundation code of ethics (HONcode), and it has been in continuous compliance since January 2001. References