Bird Flu

Birds, just like people, get the flu. Bird flu viruses infect birds, including chickens, other poultry and wild birds such as ducks. Most bird flu viruses can only infect other birds. However, bird flu can pose health risks to people. The first case of a bird flu virus infecting a person directly, H5N1, was in Hong Kong in 1997. Since then, the bird flu virus has spread to birds in countries in Asia, Africa and Europe.

Human infection is still very rare, but the virus that causes the infection in birds might change, or mutate, to more easily infect humans. This could lead to a pandemic, or a worldwide outbreak of the illness.

During an outbreak of bird flu, people who have contact with infected birds can become sick. It may also be possible to catch bird flu by eating poultry that is not well cooked or through contact with a person who has it. Bird flu can make people very sick or even cause death. There is currently no vaccine.

Behcet's Syndrome

Behcet's syndrome is a disease that involves inflammation of the blood vessels. It causes problems in many parts of the body. The most common symptoms are

* Sores in the mouth
* Sores on the sex organs
* Other skin sores
* Swelling of parts of the eye
* Pain, swelling and stiffness of the joints

More serious problems can include meningitis, blood clots, inflammation of the digestive system and blindness.

Doctors aren't sure what causes Behcet's. It is rare in the United States, but is common in the Middle East and Asia. It mainly affects people in their 20s and 30s. Diagnosing Behcet's can take a long time, because symptoms may come and go, and it may take months or even years to have all of the symptoms. There is no cure. Treatment focuses on reducing pain and preventing serious problems.

Pressure Sores

Pressure sores are areas of damaged skin caused by staying in one position for too long. They commonly form where your bones are close to your skin, such as your ankles, back, elbows, heels and hips. You are at risk if you are bedridden, use a wheelchair, or are unable to change your position. Pressure sores can cause serious infections, some of which are life-threatening. They can be a problem for people in nursing homes.

You can prevent the sores by

* Keeping skin clean and dry
* Changing position every two hours
* Using pillows and products that relieve pressure

Pressure sores have a variety of treatments. Advanced sores are slow to heal, so early treatment is best.

Panic Disorder

Panic disorder is an anxiety disorder. It causes panic attacks, which are sudden feelings of terror for no reason. You may also feel physical symptoms, such as

* Fast heartbeat
* Chest pain
* Breathing difficulty
* Dizziness

Panic attacks can happen anytime, anywhere and without warning. You may live in fear of another attack and may avoid places where you have had an attack. For some people, fear takes over their lives and they cannot leave their homes.

Panic disorder is more common in women than men. It usually starts when people are young adults. Sometimes it starts when a person is under a lot of stress. Most people get better with treatment. Therapy can show you how to recognize and change your thinking patterns before they lead to panic. Medicines can also help.

Weight Loss Surgery

If you're very overweight and can't lose pounds with a healthy diet and exercise, surgery might be an option for you. The surgery is usually for men who are at least 100 pounds overweight and women who are at least 80 pounds overweight. If you are somewhat less overweight, surgery still might be an option if you also have diabetes, heart disease or sleep apnea.

Weight loss surgery limits the amount of food you can take in. Some operations also restrict the amount of food you can digest. Many people who have the surgery lose weight quickly. If you follow diet and exercise recommendations, you can keep most of the weight off. The surgery has risks and complications, however, including infections, hernias and blood clots.

Dizziness and Vertigo

When you're dizzy, you may feel lightheaded or lose your balance. If you feel that the room is spinning, you have vertigo.
A sudden drop in blood pressure or being dehydrated can make you dizzy. Many people feel lightheaded if they get up too quickly from sitting or lying down.
Dizziness usually gets better by itself or is easily treated. However, it can be a symptom of other disorders. Medicines may cause dizziness, or problems with your ear Motion sicknessblood pressure can also make you dizzy. There are many other causes.

Vaginal Diseases

Symptoms such as vaginal itching, burning, pain and discharge are some of the most common reasons that women seek medical care. Often, the problem is vaginitis, an inflammation of the vagina. In women of childbearing age, the most common cause is a bacterial infection. The main symptom is a smelly vaginal discharge, but some women have no symptoms. The treatment is antibiotics.

Other infections that can cause vaginitis include trichomoniasis and yeast infections. Some other causes of vaginal symptoms include sexually transmitted diseases, vaginal cancer and vulvar cancer.

Bacterial Infections

Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most bacteria won't hurt you - less than 1 percent makes people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.

But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.

Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them. Later, you could get or spread an infection that those antibiotics cannot cure.

Sepsis

Sepsis is a life-threatening sickness. Your body's reply to a bacterial disease usually causes it. Your immune system goes into overdrive, overwhelming normal process in your blood. The result is that small blood clots form, blocking blood flow to vital organs. This can lead to organ failure. Babies, old people and those with damaged immune systems are most likely to get sepsis. But even healthy public can turn into deathly ill from it. A quick diagnosis can be crucial, because one third of populace who get sepsis die from it.

Sepsis is usually treated in a hospital exhaustive care unit. IV antibiotics and fluids may be known to try to knock out the disease and to keep blood pressure from dropping too low. Patients may also need respirator to help them respire.

Back Pain

If you've ever groan, "Oh, my aching back!", you are not alone. Back pain is one of the the majority common medical harms, affecting 8 out of 10 people at some point through their lives. Back pain can range from a dull, stable ache to a sudden, sharp pain. Acute back pain comes on abruptly and typically lasts from a few days to a few weeks. Back pain is called constant if it lasts for more than three months.

Most back pain goes absent on its own, though it may take awhile. Taking over-the-counter pain relievers and latent can help. However, staying in bed for more than 1 or 2 days can make it inferior.

If your back pain is severe or doesn't get better after three days, you should call your fitness care provider. You should also get medical notice if you have back pain following an wound.

Back Injuries

Your back is an intricate construction of bones, muscles, and other tissues extend from your neck to your pelvis. Back injuries can result from sports injury, work around the house or in the garden, or a sudden jolt such as a car disaster. The lower back is the most ordinary site of back injuries and back pain. Common back injuries comprise

* Sprains and strains

* Herniated disks

* Fractured vertebrae

These injuries can cause pain and limit your association. Treatments vary but might include medicine, icing, bed rest, physical therapy or surgery. You might be able to avoid some back injuries by maintain a healthy weight, lifting objects with your legs and by lower-back support when you sit.

Infant and Newborn Care

Going home with a new baby is exciting, but it can be scary, too. Newborns have many needs, like frequent feedings and diaper changes. Babies can have health issues that are different from older children and adults, like diaper rash and cradle cap.

Your baby will go through many changes during the first year of life. You may feel uneasy at first. Ask your health care provider for help if you need it.

Postpartum Depression

Many new moms feel content one minute and distressing the next. If you feel improved after a week or so, you most likely just had the "baby blues." If it takes you longer to feel improved, you may have postpartum sadness.

Postpartum despair can make you feel restive, anxious, fatigued and valueless. Some new moms worry they will hurt themselves or their babies. Unlike the "baby blues," postpartum depression does not go away rapidly. Very rarely, new moms develop something even graver. They may stop eating, have trouble latent and become worried or paranoid. Women with this condition typically need to be hospitalized.

Researchers think that change in your hormone levels during and after pregnancy may lead to postpartum despair. If you think you have it, tell your health care provider. Medicine and talk treatment can assist you get well.

Multimedia

Multimedia is media that uses multiple forms of information content and information processing to inform or amuse the audience. Multimedia referd to the use of electronic media to store and experience multimedia content. Multimedia is similar to traditional mixed media in fine art, but with a broader scope. The term rich media is identical for interactive multimedia. Multimedia means that computer info can be represented through audio, graphics, image, video and animation in addition to traditional media (text and graphics). Hypermedia can be considered one particular multimedia application.

Multimedia may be generally divided into linear and non-linear categories. Linear dynamic content progresses without any navigation control for the observer such as a cinema presentation. Non-linear content offers user interactivity to control progress as used with a computer game or used in self-paced computer based training. Non-linear content is also known as hypermedia content.

Multimedia presentations can be exist or recorded. A recorded presentation may allocate interactivity via a navigation system. A live multimedia presentation may allow interactivity via interaction with the presenter or performer.

Routers

A router translates information from one network to another; it is similar to a super intelligent bridge. Routers select the best path to route a message, based on the destination address and origin. The router can direct traffic to prevent head-on collisions, and is smart enough to know when to direct traffic along back roads and shortcuts.

While bridges know the addresses of all computers on each side of the network, routers know the addresses of computers, bridges, and other routers on the network. Routers can even "listen" to the entire network to determine which sections are busiest -- they can then redirect data around those sections until they clear up.

If you have a school LAN that you want to connect to the Internet, you will need to purchase a router. In this case, the router serves as the translator between the information on your LAN and the Internet. It also determines the best route to send the data over the Internet. Routers can:

* Direct signal traffic efficiently
* Route messages between any two protocols
* Route messages between linear bus, star, and star-wired ring topologies
* Route messages across fiber optic, coaxial, and twisted-pair cabling

Mobile phone security

Make a note of:

* Your mobile's serial number (also known as the IMEI number)
* Your mobile phone number
* The number of your operator's customer services (including UK dialing code).

Keep them with you in a safe place, separate from your mobile.

If your phone is stolen you will be able to contact the network operator in the UK and request that they block your phone and/or SIM card. You may need to provide additional information in order to get the phone blocked, such as a password. Contact your operator for details of how they deal with stolen phones before you leave so you can be sure you have the right information abroad to block the phone if it is stolen.

Information - GPRS

General Packet Radio Service (GPRS) enabled networks offer 'always-on' higher capacity, internet-based content and packet-based services. This enables services such as color internet browsing, e-mail on the move, powerful visual communications, multimedia messages and location-based services.

Kidney Diseases

Also called: Renal disease

Your kidneys are two bean-shaped organs, each about the size of your fists. They are located near the middle of your back, just below the rib cage. Inside each kidney about a million tiny structures called nephrons filter blood. They remove waste products and extra water, which become urine. The urine flows through tubes called ureters to your bladder, which stores the urine until you go to the bathroom.

Damage to the nephrons results in kidney disease. This damage may leave kidneys unable to remove wastes. Usually the damage occurs slowly over years. There are no obvious symptoms, so you don't know it is happening.

Many things can cause kidney disease. You are at risk if you have

* Diabetes

* High blood pressure

* A close family member with kidney disease

Your doctor can run tests to find out if you have kidney disease. If your kidneys fail completely, a kidney transplant or dialysis can replace the work your kidneys normally do.

Samsung i900 cell phone

The Samsung i900 is the top model in this line-up of new Samsung mobile phones. Even thought the Samsung i900 was spotted before on the Internet, it did notattract that much attention if any at all. The Samsung i900 has been equipped with a large touchscreen monitor with 262,000 colours and a resolution of 240x320. The device offers Quad-band, GPRS and UMTS connections.

In addition to the UMTS connection for Internet access, the Samsung i900 also features WLAN connection possibilities. These connectivity possibilities together with the VGA camera on the front, enable the user to make video-calls. The 5 Megapixel digital camera, will almost certainly feature face detection and electronic image stabilization and enables capturing precious moments. The Samsung i900's operating system is Windows Mobile 6.1 which allows adding of other favourite programs to this cell phone.

Location-based games

Games played on a mobile piece of equipment using localization technology like GPS are called location-based games. In other words: while it does not matter for a normal mobile game where exactly you are (play them anywhere at anytime), the player's coordinate and movement are main elements in a Location-based game. The best-known example is the treasure hunt game Geocaching, which can be played on any mobile appliance with integrated or external GPS receiver. External GPS receivers are generally connected via Bluetooth. More and more mobile phones with integrated GPS are expected to come.

Besides Geocaching, there exist several other location-based games which are somewhat in the stage of research prototypes than a commercial success.

Mobile phone

The mobile phone or mobile, also called a wireless, cellular phone, cell phone, cell or hand phone (HP), is a long-range, portable electronic device used for mobile communication that uses a network of specialized foundation stations known as cell sites.

In addition to the standard voice function of a telephone, current mobile phones may support many other services, and accessories, such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video. Most current mobile phones attached to a cellular network of base stations (cell sites), which is in turn interconnected to the public switched telephone network (PSTN) (the exception is satellite phones).

Software tools

Software tools for distributed processing contain standard APIs such as MPI and PVM and open source-based software solutions such as Beowulf and openMosix which facilitate the creation of a sort of "virtual supercomputer" from a collection of ordinary workstations or servers. Technology like Rendezvous pave the way for the making of ad hoc computer clusters. An example of this is the distributed rendering function in Apple's Shake compositing function. Computers running the Shake software simply need to be in proximity to each other, in networking terms, to automatically discover and use each other's resources. While no one has yet built an ad hoc computer cluster that rivals even yesteryear's supercomputers, the line between desktop, or even laptop, and supercomputer is beginning to blur, and is probable to continue to blur as built-in support for parallelism and distributed processing increases in mainstream desktop operating systems. An easy programming language for supercomputers remains an open explore topic in Computer Science.

Chemistry in Natural Science

Constituting the scientific learning of matter at the atomic and molecular scale, chemistry deals primarily with collections of atoms, such as gases, molecules, crystals, and metals. The composition, statistical properties, transformations and reply of these materials are studied. Chemistry also absorbs understanding the properties and interactions of individual atoms for use in larger-scale applications. Most chemical procedure can be studied directly in a laboratory, using a series of (often well-tested) techniques for manipulating materials, as well as an understanding of the underlying processes. Chemistry is often known as "the central science" because of its role in connecting the other natural sciences.

Early experiments in chemistry had their roots in the system of Alchemy, a set of values combining mysticism with physical experiments. The science of chemistry began to expand with the work of Robert Boyle, the discoverer of gas, and Antoine Lavoisier, who developed the theory of the Conservation of mass. The discovery of the chemical elements and the concept of Atomic Theory began to systematize this science, and researchers developed a basic understanding of states of matter, ions, chemical bonds and chemical reactions. The success of this science led to a complementary chemical industry that now acting a significant role in the world economy.

Photographic Paper

Until the advent of digital photographic processes, the individual meaning of photographic.

Paper was paper covered with light-sensitive chemicals. So-called photo papers of today are frequently specially coated papers for use in inkjet or laser printers to make digital prints. This article center of attention on traditional photographic papers. Photographic paper may be showing to light in a controlled manner either by placing a negative in make contact with the paper directly (contact printing) or by using an enlarger (enlarging) in order to create a latent image. Photographic papers are subsequently developed using wet chemicals to generate a visible image.

Photographic Printing

Photographic printing is the method of producing a final image for viewing, usually on sensitized paper from a previously prepared photographic negative.

The procedure consists of three major steps, performed in a photographic darkroom or within an automated photo printing machine:

1. Exposure of the picture onto the sensitized paper using a contact printer or enlarger.

2. Processing of the latent image through a more than one step chemical immersion process.

1. Development of the uncovered image.

2. Optionally Stopping improvement by neutralizing, diluting or removing developing agent.

3. Fixing the final print by dissolving remaining unexposed/undeveloped light-sensitive liquid.

4. Washing thoroughly to eliminate chemicals used in processing, protecting the finished print from fading and decay.

3. If finished on glossy paper, ferrotyping to enhance the reflective gloss.

4. Optional Toning of the print through extra chemical processes.

5. Texturing and drying of the finishing print.

Inkless Printers

Inkless printers use paper with colorless dye crystals embedded connecting the two outer layers of the paper. When the printer is twisted on, heat from the drum causes the crystals to colorize at different rates and become visible. The technology was worked on by Zink Imaging and is now accessible (2007). Because of the way it prints, the printer can be as little as a business card, the images are waterproof, and in fact, one product slated for release by Zink Imaging is a digital camera with a printer built into it. Xerox is also working on an inkless printer which will use a extraordinary reusable paper coated with a few micrometres of UV light sensitive chemicals. The printer will use a particular UV light bar which will be able to write and erase the paper. As of early 2007 this technology is at a halt in development and the text on the printed pages can only last between 16-24 hours before fading.

Integrated circuit

Integrated circuit viewing memory blocks, logic and input/output pads around the periphery Microchips with a transparent window, showing the integrated circuit inside. Note the fine silver-colored wires that attach the integrated circuit to the pins of the package. A monolithic integrated circuit (also known as IC, microcircuit, microchip, silicon chip, or chip) is a miniaturized electronic circuit (consisting mostly of semiconductor devices, as well as passive components) that has been contrived in the surface of a thin substrate of semiconductor material.

A hybrid integrated circuit is a miniaturized electronic circuit build of individual semiconductor devices, as well as passive components, bonded to a substrate or circuit board.

Minicomputer

Minicomputer is a mostly outmoded term for a class of multi-user computers which generate the middle range of the computing spectrum, in between the largest multi-user systems (traditionally, mainframe computers) and the smallest single-user systems (microcomputers or personal computers). Formerly this class created a distinct group with its own hardware and operating systems notably having smaller address space (notice the cited numbers of bits in a data word, ranging from 8 to 24 bits commonly around 16-bits). While the distinction between mainframe computers and smaller computers residue fairly clear, contemporary middle-range computers are not well differentiated from personal computers, being typically just a more powerful but still compatible version of a personal computer. More modern conditions for such machines consist of midrange systems (common in IBM parlance), workstations (common in Sun Microsystems and general UNIX/Linux parlance), and servers.

Microcomputer

A microcomputer is mostly often taken to mean a computer with a microprocessor (µP) as its CPU. Another common characteristic of these computers is that they take up physically small amounts of space. Desktop computers, video game consoles, laptop computers, tablet PCs, and a lot of handheld strategy may all be considered examples of microcomputers. Most microcomputers serve only a particular user at a time, but some, in the form of PCs and workstations running e.g. a UNIX(-like) operating system, may cater to a number of users concurrently. The µP does the greater part of the job of calculating on and manipulating data that all computers do.

Mainframes

Mainframes (often colloquially referred to as big iron) are enormous and expensive computers used mostly by government institutions and large companies for mission critical applications, usually bulk data processing such as censuses, industry/consumer statistics, ERP, and financial transaction processing.

The term originated during the early 1970s with the introduction of lesser, fewer complex computers such as the DEC PDP-8 and PDP-11 series, which became known as minicomputers or in a minute minis. The industry/users then coined the term "mainframe" to describe bigger, earlier types (previously known simply as "computers").