Tuesday, August 12, 2008

Olympic at Beijing 2008

Make room for Phelps as winningest Olympian ever
By PAUL NEWBERRY, AP National Writer 3 hours, 20 minutes ago
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BEIJING - AUGUST 11: (L-R) Ma… Getty Images - Aug 11, 1:25 am EDT
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Michael Phelps Gallery
BEIJING (AP)—Michael Phelps climbed out of the pool, unzipped his skin-tight suit and ambled over to chat with his coach.
“Well, you’re tied,” Bob Bowman reminded him.
“That’s pretty cool,” Phelps replied.
Yawn. This guy is making monumental feats look ridiculously easy.
Phelps etched his name with Mark Spitz and Carl Lewis among the winningest Olympians ever with his third gold medal and third world record in as many days.
In winning the 200-meter freestyle Tuesday, Phelps ran his career Olympic total to nine golds and avenged his only individual loss in Athens four years ago, when a 19-year-old Phelps took on the 200 free just so he could compete with Ian Thorpe and Pieter van den Hoogenband.
He finished third that night in what was called the “Race of the Century.” This time, it was hardly a race at all.
Phelps all the way.
“I hate to lose,” he said. “When you lose a race like that, it motivates me even more to try to swim faster.”
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Competing out in lane six, Phelps quickly surged to the lead and led by a full body length halfway through the second of four laps. He was nearly two seconds ahead of the field when he touched in 1 minute, 42.96 seconds, breaking the mark of 1:43.86 he set at last year’s world championships.
“I just wanted to be out at the 50-meter point, and that’s where I was,” said Phelps, much more reserved in his reaction after a wild performance on deck the previous day. “I was in open water, and it was difficult for the other guys to see me.”
South Korea’s Park Tae-hwan took the silver in 1:44.85, touching while Phelps was already looking at the scoreboard. Peter Vanderkaay, one of Phelps’ training partners, gave the U.S. another medal by claiming the bronze in 1:45.14.
“I knew Park is strong in the last 50 meters,” Phelps said of the 400 free gold medalist, “so I knew I had to be fast and concentrated.”
Everyone else figured they were racing for second.
“Phelps swam so fast,” Park said. “It is my honor to compete with him.”
Added Vanderkaay, “I just tried to swim my own race. He’s going to go out, but I can’t let that affect my race strategy.”
Phelps is now 3-for-3 in Beijing, on course to beat Spitz’s 36-year-old record of seven golds in a single Olympics. He opened with a world record in the 400 individual medley, then led off an epic victory in the 400 free relay.
While chasing Spitz, he’ll take care of another historical landmark, one he wasn’t even aware of until earlier this year.
Phelps’s ninth career gold tied him with Spitz, Lewis, Soviet gymnast Larysa Latynina and Finnish runner Paavo Nurmi for the most in Olympic history.
“To be tied for the most Olympic golds of all time, with those names, in Olympic history …,” Phelps said, before pausing and letting out a slight chuckle.
“The Olympics have been around for so many years, that’s a pretty amazing accomplishment.”
The mark isn’t likely to be shared for long. Phelps will go for his fourth and fifth golds of these games, which would push him to 11 overall, when he competes Wednesday in the finals of the 200 butterfly and 800 free relay, two more events in which he already holds world records.

BEIJING - AUGUST 11: Jason Lez… Getty Images - Aug 11, 1:27 am EDT
Just for kicks, Phelps set an Olympic record during Tuesday’s 200 fly semifinals, competing less than an hour after winning the 200 free.
“I set up an opportunity to have a perfect swim tomorrow,” Phelps said.
Perfection. That sums up the gangly 23-year-old from Baltimore who loves rap music, pimped-out cars and doing things in the pool that no one else even dared to think of.
“It might be once in a century you see something like this,” teammate Aaron Peirsol said. “He’s not just winning, he’s absolutely destroying everything. It’s awesome to watch.”
Phelps is a creature of habit. He struggles to wake up in the morning, and loves to take naps in the middle of the afternoon. He gets two massages a day and takes ice baths to help his body recover from the grueling schedule. He whoofs down gargantuan amounts of pasta and pizza between races.
“Lots of carbs,” he said.
When it’s time to race, there’s no one better.
“It’s his physical ability, it’s his ability to race, it’s his ability to keep focused, to get excited when he needs to and to come down when he needs to come down,” said Mark Schubert, head coach of the U.S. team.
With Phelps leading the way, it turned out to be a red, white and blue morning for the American swimmers.
Peirsol defended his Olympic title in the 100 backstroke with a world record of 52.54, and teammate Matt Grevers made it a 1-2 U.S. finish. Peirsol beat his own mark, 52.89, set at last month’s national trials in Omaha, Neb., while Grevers added to the gold he won for swimming the preliminaries of the 400 free relay.
“It never gets old,” said Peirsol, who swept the backstroke golds in Athens and will try to do the same in Beijing. “It really does feel like the first time.”
The bronze was shared by Russia’s Arkady Vyatchanin and Australia’s Hayden Stoeckle.
Natalie Coughlin became the first woman to repeat as champion of the 100 backstroke, winning with an American record of 58.96. She held off Kirsty Coventry of Zimbabwe, who set a world record of 58.77 in the semifinals but couldn’t repeat that performance.
“I’m so glad to have this race behind me because there’s so much pressure,” said Coughlin, who claimed her seventh Olympic medal overall. “I tried to keep myself as mentally strong as possible.”
Another American, Margaret Hoelzer, took bronze in 58.34.
“The ball’s starting to roll,” Phelps said. “Last year in Melbourne (at the world championships) one swim started it, and then swims just started happening one after another after another. We had a great morning this morning and hopefully we can set up some more good swims tonight and keep the ball rolling.”
The U.S. dominance was broken only by Australia’s Leisel Jones, who made up for a disappointing bronze four years ago by winning the 100 breaststroke in 1:05.17, just eight-hundredths off her own world record. Rebecca Soni, who got in the event after fellow American Jessica Hardy tested positive for drugs last month, took advantage of her opportunity by winning the silver in 1:06.73.
“It almost felt like less pressure because it wasn’t initially my event,” Soni said. “I don’t think it’s necessarily fair what happened, but rules are rules and I’m just doing what I’m told.”
Mirna Jukic of Austria got the bronze (1:07.34).
The day before, Phelps led a raucous celebration on deck after Jason Lezak improbably caught France’s Alain Bernard on the final stroke to give the Americans a thrilling relay win. He thrust both fists in the air and let out a long scream before burying himself with Lezak, Cullen Jones and Garrett Weber-Gale in a group hug.
There was no such drama this time. He has no equal in China.
Phelps touched the wall two full body lengths ahead of everyone else, put his right index finger in the air and matter-of-factly climbed from the pool.
After the medal ceremony, Phelps changed into a different suit—ditching the one that covers his stomach and chest for one that merely goes from waist to ankles—to swim in the semifinals of the 200 fly. He won the heat and tied his own Olympic record from the win at Athens four years ago, 1:53.70.
“I just wanted to win my heat and set everything up for tomorrow,” Phelps said. “Just get through that and prepare myself for tomorrow, that’s the most important thing. An afternoon off and it’s time to just sort of get as rested as I can, recover, and I probably have to re-shave. Get all of that stuff down.”
In the semifinals of the women’s 200 free, Katie Hoff advanced with the second-fastest time of 1:57.01. The 19-year-old American, who’s like a little sister to Phelps, is still trying to win her first gold medal after settling for bronze and silver in her first two events. She still has three more individual races, plus a relay, to fill that void.
Slovenia’s Sara Isakovic was the top qualifier at 1:56.50.
Hoff returned to post the third-fastest time in the semifinals of the 200 individual medley, trailing Coventry (2:09.53) and Australia’s Stephanie Rice (2:10.58) in 2:10.90.
It also was a busy morning for Coughlin, who won the other heat in the 200 IM with the fourth-best time overall, 2:11.84.

Friday, June 6, 2008

Durian

The durian (IPA: [ˈdʊəriən, -ɑn][1]) is the fruit of trees of the genus Durio belonging to the Malvaceae, a large family which includes hibiscus, okra, cotton, mallows and linden trees. Widely known and revered in Southeast Asia as the "King of Fruits," the fruit is distinctive for its large size, unique odour, and formidable thorn-covered husk. The fruit can grow up to 30 centimetres (12 in) long and 15 centimetres (6 in) in diameter, and typically weighs one to three kilograms (2 to 7 lbs). Its shape ranges from oblong to round, the colour of its husk green to brown, and its flesh pale-yellow to red, depending on the species.

The hard outer husk is covered with sharp, prickly thorns while the edible flesh within emits a distinctive odour, which is regarded as either fragrant or overpowering and offensive. The odour of the ripe fruit is strong and penetrating even when the husk is intact. Due to the unusual odour, the durian is forbidden from certain establishments such as hotels and public transportations in Southeast Asia. The odour has prompted many people to formulate evocative descriptions with views ranging from those of deep appreciation to intense disgust.

The durian, native to Brunei, Malaysia and Indonesia, has been known to the western world for about 600 years. The British naturalist Alfred Russel Wallace famously described its flesh as "a rich custard highly flavoured with almonds" in the 19th century. The flesh can be consumed at various stages of ripeness and is used to flavour a wide variety of savoury and sweet edibles in Southeast Asian cuisines. The seeds can also be eaten when cooked. The name durian comes from the Malay word duri (thorn) together with the suffix -an.

There are 30 recognised Durio species, at least nine of which produce edible fruit. Durio zibethinus is the only species available in the international market; other species are sold in their local regions. There are hundreds of durian cultivars; most of them have a common name and a code number starting with "D". Many consumers express preferences for specific cultivars, which fetch higher prices in the market.

Human Weapon


Directed by Ilan Ziv
Produced by Ilan Ziv & Serge Gordey



film still

For those unsatisfied with sensational television coverage featuring "terrorism experts," HUMAN WEAPON provides the first sober, in-depth examination of the complexities of the suicide bombing phenomenon.

Filmed in Iran, Lebanon, Sri Lanka, Israel, Palestine, Europe and the United States, HUMAN WEAPON weaves dramatic, previously unseen footage together with interviews of key militants whose organizations use suicide bombing as part of their strategy. It supplements these scenes with powerful human stories.

- In Iran, the film looks at the "prototype" for the human weapon - the Basiji - young volunteers who were recruited to sacrifice themselves on the battlefield during Iran's long war with Iraq.

- In Lebanon, the film combines interviews with key leaders of Hizbollah (the Party of God) and a former CIA agent with rare archival material and footage of a haunting visit to the family of a martyr. It also explores the very first suicide bombings - attacks directed at the U.S. Embassy and Marine barracks in 1983.

- In Sri Lanka, the films examines the Tamil Tiger separatist movement, which took suicide bombings to the next level by launching hundreds of suicidal attacks against both military and political targets.

- In Israel and the Palestinian territories, the film interviews failed suicide bombers, key leaders of Hamas and other militant organizations, Israeli doctors, and Palestinian psychiatrists. The film draws an intimate portrait of a recent suicide bomber and his community on the West Bank, to trace the recent phase in the evolution of suicide bombing: the ultimate weapon of terror, the political strategy of targeting civilians.

- Finally, in the United States, HUMAN WEAPON explores, with the help of well-known author Robert Jay Lifton, some of the far-reaching historical ramifications of suicide bombing.

HUMAN WEAPON is not primarily concerned with suicide bombing as a local phenomenon in a particular conflict. Rather, it strives to understand the recent history, and how the introduction of this new weapon has unleashed a different kind of warfare, whose impact we are yet to grasp.

"**** (4 Stars!). Chilling and instructive."—David Sterritt, Christian Science Monitor

"A gripping and important documentary."—Stephen Holden, New York Times

"HUMAN WEAPON provides an in-depth view into the global trend of suicide bombing and contextualizes resistence groups in their appropriate place in history."—Middle East Studies Association Bulletin

"The film debunks many of the stereotypes about suicide bombers. Truly disturbing. ...some scenes will stay with me for weeks."—Janus Head

"Powerfully analytical."—Bob Campbell, Star-Ledger (NJ)

"Highly Recommended... this is an excellent introduction to this currently prevalent form of warfare."—Educational Media Reviews Online

** 2002 Middle East Studies Association FilmFest
** 2002 Prix Europa, Special Commendation (2nd Prize)

Friday, May 30, 2008

What Causes a Heart Attack?

Most heart attacks occur as a result of coronary artery disease (CAD). CAD is the buildup over time of a material called plaque on the inner walls of the coronary arteries. Eventually, a section of plaque can break open, causing a blood clot to form at the site. A heart attack occurs if the clot becomes large enough to cut off most or all of the blood flow through the artery.

Coronary Artery With Plaque Buildup

Coronary Artery With Plaque Buildup

The illustration shows a normal artery with normal blood flow (figure A) and an artery containing plaque buildup (figure B).

The blocked blood flow prevents oxygen-rich blood from reaching the part of the heart muscle fed by the artery. The lack of oxygen damages the heart muscle. If the blockage isn’t treated quickly, the damaged heart muscle begins to die.

Heart attack also can occur due to problems with the very small, microscopic blood vessels of the heart. This condition is called microvascular disease. It’s believed to be more common in women than in men.

Another less common cause of heart attack is a severe spasm (tightening) of a coronary artery that cuts off blood flow through the artery. These spasms can occur in coronary arteries that don’t have CAD. It’s not always clear what causes a coronary artery spasm, but sometimes it can be related to:

  • Taking certain drugs, such as cocaine
  • Emotional stress or pain
  • Exposure to extreme cold
  • Cigarette smoking

The animation below shows how a heart attack occurs. Click the “start” button to play the animation. Written and spoken explanations are provided with each frame. Use the buttons in the lower right corner to pause, restart, or replay the animation, or use the scroll bar below the buttons to move through the frames.

The animation shows how blood flow is blocked in the heart, leading to a heart attack

The animation shows how blood flow is blocked in the heart, leading to a heart attack.


Other NamesPrevious NextWho Is At Risk

CAuses of Skin Cancer

Exposure to the sun's ultraviolet (UV) rays appears to be the most important factor in the development of skin cancer.

The overall level of UV light reaching the Earth's surface is increasing because our planet's atmospheric ozone layer, which filters out much of the UV radiation, is thinning over certain parts of the globe. "The greatest hazard humans face from the effects of ozone depletion is skin cancer," according to the Skin Cancer Foundation, a nonprofit group that raises research funds and educates the public and medical community about skin cancer.

The beach, pool-side and golf course are not the only places where you need sun protection. UV radiation can pierce your car window and damage your skin as you drive. Sun exposure also can damage facial skin in winter when you go skiing or sledding, and accelerate the skin's aging process with premature dryness and wrinkles. Development of sun-induced skin cancer is a very slow process. Research suggests that long-term exposure to UV radiation raises your skin cancer risk visibly through sunburn and invisibly by damaging the DNA in skin cells.

While nearly 90 percent of all skin cancers are thought to stem from the sun's UV radiation. Other factors also make skin cancer more likely, according to the American Cancer Society. They include:

Fair complexion: Having light skin, skin that freckles or burns easily and blue eyes increases your risk of skin cancer.

Moles: Irregularly shaped or colored moles and having lots of moles may increase your risk of melanoma.

Chemical exposure: Exposure to arsenic, a heavy metal used in making some insecticides, and found in some water supply, increases the risk of developing non-melanoma skin cancer. Occupational exposure to industrial tar, coal, paraffin and certain types of oil also may increase the non-melanoma skin cancer risk.

Radiation exposure: Radiation therapy may increase the risk of a non-melanoma skin cancer.

Long-term or severe skin inflammation or injury: In rare cases, non-melanoma skin cancers grow in scars from severe burns, on areas of skin over severe bone infections, and on skin damaged by certain severe inflammatory skin diseases.

Psoriasis treatment: Patients treated with the drug psoralen and ultraviolet light (PUVA) may have an elevated risk of squamous cell carcinoma.

Actinic keratosis: These thick scaly patches of skin can sometimes develop into cancer.

Xeroderma pigmentosum: This very rare hereditary disease makes it difficult for the skin to repair DNA damage from UV light. Xeroderma pigmentosum patients typically suffer many skin cancers, which may begin in childhood.

Basal cell nevus syndrome: People born with this rare condition develop multiple basal cell carcinomas and other health problems.

Reduced immunity: People whose immune system is diminished because of HIV infection, drugs that prevent rejection of donor organs or chemotherapy are at increased risk for non-melanoma skin cancer. New immune drugs used to treat skin disease may affect the body's immune system and increase the risk of cancer, especially lymphomas.

Related Articles

What Is Skin Cancer?

How Common Is Skin Cancer?

Who Is at Greatest Risk for Skin Cancer?

Detecting and Diagnosing Skin Cancer

Treating Skin Cancer

Preventing Skin Cancer

Causes of abnormal vaginal discharge.

Lactobacilli are common in the human body. They aid digestion in the gastrointestinal tract and help prevent infection in the vagina. The lactobacilli found in the vagina produce lactic acid which maintains a level of acidity that provides a good defense against infection. But when this level is disrupted infection can set in.

The causes of abnormal vaginal discharge can be either infectious or non-infectious:
Infectious causes include:

  • Bacterial vaginosis
  • Vaginal candidiasis (yeast infection)
  • Cervico-vaginitis resulting from a sexually transmitted infection (STI)
    • Trichomonas
    • Gonorrhea and chlamydia

Non-infectious causes:

  • Use of perfumes, soaps, or latex on or around the vagina
  • Contact dermatitis - a skin reaction resulting from exposure to allergens or irritants
  • Atrophic vaginitis - inflammation of the vagina due to the thinning and shrinking of the tissues, as well as decreased lubrication.
  • Excessive vaginal secretions
Prevention
  • Always practice safe sex. Wear a condom to protect yourself from HIV, syphilis, gonorrhea, and other STIs.
  • Form good hygeine habits. Wipe from front to back, avoid vaginal douching. Avoid certain sexual activities that may also contribute to vaginal infections.
  • If you suffer from vaginal irritation easily, try to avoid scented sanitary napkins and toilet paper, soap, shampoo, bubble bath, tight undergarments made of synthetic fibres or latex, etc. This may reduce your chances of infection.
  • Good health habits, such as exercise, weight loss, not eating refined sugar, and better stress management, are helpful.

Friday, April 25, 2008

What is Condom?

What Is It?

Condoms are considered a barrier method of contraception. There are male condoms and female condoms. A male condom is a thin latex (a type of rubber) sheath that is worn on the penis. A female condom is a polyurethane sheath with a flexible ring at either end. One end is closed and is inserted into the vagina, the other end is open and the ring sits outside the opening of the vagina. The male condom is far more widely used and is sometimes called a "rubber" or "prophylactic."

How Does It Work?

The condom works by keeping semen (the fluid that contains sperm) from entering the vagina. The male condom is placed on a guy's penis when it becomes erect. It is unrolled all the way to the base of the penis while holding the tip of the condom to leave some extra rubber. This creates a space for semen after ejaculation and makes it less likely that the condom will break.

After the guy ejaculates, he should hold the condom at the base of the penis as he pulls out of the vagina. He must do this while the penis is still erect to prevent the condom from slipping off when he gets soft. If this happens, sperm could enter the vagina.

The female condom is inserted into the vagina using the closed-end ring. The other ring creates the open end of the condom. The sheath then lines the walls of the vagina creating a barrier between the sperm and the cervix. The male and female condoms should not be used at the same time because they can get stuck together and cause one or the other to slip during intercourse, making them ineffective. The female condom can be inserted up to 8 hours prior to intercourse. It should be removed immediately after sex.

A used condom should be thrown in the garbage, not down the toilet. Once a condom is used, it cannot be reused. A new condom should be used each time you have sex and it must be used from start to finish every time you have sex to prevent pregnancy and sexually transmitted diseases (STDs). Never use oil-based lubricants such as mineral oil, petroleum jelly, or baby oil with condoms because these substances can break down the rubber.

And if a condom ever seems dry, sticky, or stiff when it comes out of the package, or if it is past its expiration date, throw it away and use a new one. It's a good idea to have several condoms on hand in case there is a problem with one. It's best to store unused condoms in a cool, dry place.

How Well Does It Work?

Over the course of 1 year, 15 out of 100 typical couples who rely on male condoms alone to prevent pregnancy will have an accidental pregnancy. The use of the female condom is a little less reliable and 21 out of 100 couples will have an unintended pregnancy.

Of course, these are average figures and the chance of getting pregnant depends on whether you use this method correctly and every time you have sex. In fact studies show that, although it's possible for condoms to break or slip during intercourse, the most common reason that condoms "fail" is that the couple fails to use one at all.

Experts used to think that using spermicide with a condom would decrease the pregnancy rate as well as help fight against STDs. However, more recent information indicates that this is not necessarily true and spermicide does not help make condoms more effective.

In general, how well each type of birth control method works depends on a lot of things. One factor is whether the method chosen is convenient — and whether the person remembers to use it correctly all the time.

Abstinence (not having sex) is the only method that always prevents pregnancy and STDs.

Protection Against STDs

Most male condoms are made of latex. Those made of lambskin may offer less protection against some STDs, including HIV, so use of latex condoms is recommended. For people who may have an allergic skin reaction to latex, both male and female condoms made of polyurethane are available.

When properly used, latex and polyurethane condoms are effective against most STDs. Condoms do not protect against infections spread from sores on the skin not covered by a condom (such as the base of the penis or scrotum). For those having sex, condoms must always be used to protect against STDs even when using another method of birth control.

Possible Side Effects

Most men and women have no problems using condoms. Side effects that can occasionally occur include:

  • allergy to latex condoms
  • irritation of the penis or the vagina from spermicides or lubricants that some condoms are treated with

Who Uses It?

Couples who are responsible enough to stop and put a condom on each time before sex and people who want protection against STDs use condoms. Because condoms are the only method of birth control currently available for men, they allow the guy to take responsibility for birth control and STD protection. Condoms are also a good choice for people who do not have a lot of money to spend on birth control.

How Do You Get It?

Condoms are available without a prescription and are sold in drugstores, supermarkets, and even vending machines (in some stores, they're in the "Family Planning" aisle). Condoms come in different sizes, textures, and colors.

How Much Does It Cost?

Condoms are the least expensive and most available method of birth control — other than abstinence, of course. Male condoms cost about $0.50 to $1 each and are less expensive when they are bought in boxes that contain several condoms.

In addition, many health centers and family planning clinics (such as Planned Parenthood) and some schools distribute them free of charge. Female condoms are a little more expensive and cost about $2 to $3 per condom.