Archive for November, 2008

Trail Watching Basics

Thursday, November 27th, 2008

There are some new technologies available to make your wildlife photography even better. There are a number of people who really like to capture some neat photos and view the beauty of nature. Taking pictures of wildlife presents problems though, since a human presence can cause an alarm. If you are really interested, then you should get a trail camera.

You don’t want to just get any trail camera though. You want a good one. A trail camera is basically just a camera built to use a fancy time-delay mechanism. You set it up and turn it on to cover an trail area. It will then take pictures when it detects motion. This should give you some really cool pictures. Make sure that your camera has a digital rangefinder though. This will make your pictures stay in focus even when they are at quite a distance. It is a little more expensive, but you will be happy you bought a good camera to start with.

Finally, you might want to get something to play predator calls. These are a mix of sounds that should draw in a specified animal to the area where you have the camera setup. If you are having trouble drawing an elusive creature to your setup, then this will be a good investment.

Computer based training with Videos

Thursday, November 27th, 2008

CBT or Computer based training is the buzzword at the moment with our ever changing lifestyle and fast paced world. Due to our lifestyle we have ended up lack of time. Only for these kind of people who find it hard to allocate time for specialized IT training, we have the option called Computer Based Training system. With this option of e-learning through videos you can learn from the comfort of your own home and at anytime you wish or can learn them.

Thus you will save immense time on travel and commuting. Also you will learn them a lot quicker than regular training classes. There are several other companies which offer CBT and one among them is the K Alliance. They are one of the pioneers in this field. They have well qualified faculties who will teach you all the nuances you would need to learn any IT courses online.

With the K Alliance training videos you will get the virtual classroom and you can get all your doubts cleared through the online option available specifically for them then and there. Since these are very highly qualified faculties at K Alliance, you will be able finish off your IT courses a lot quicker than regular courses.

Be Certified!

Wednesday, November 26th, 2008

When you are going to enter a certain field of expertise, there is no point in going through it if you will only be a mediocre with it and will not undergo the necessary programs that it can offer. When we talk about IT certification boot camps, you will boil down to a realization that you will always need to go through an IT certification so you will be certified at that and you will also be able to gain the trust and confidence of other people to do some of the favors to you. It will always be a good choice for you to do such because it will really be a great way to spend almost every drop of your sweat if you will do so. Also, when you will have the IT certification, it will not e hard for you to garner as, any clients as you can and for that, you will also be hired by several companies of your choice that you might want to enter. Through all these, you just have to be sure that you got the certification in a good way and you did not have it under a fraud because it might go back to you. That’s one of advantages of attending an IT boot camps

Inhaled corticosteroids ‘up pneumonia risk by one third in lung disease sufferers’

Wednesday, November 26th, 2008

Widely used inhaled corticosteroid drugs increase risk of pneumonia by full third in people suffering from lung disease, according to a new study.

The risk associated with the use of anti-inflammatory medications has led Lung disease experts at Johns Hopkins to call for physicians to show much greater caution in prescribing inhaled corticosteroid drugs for people with chronic obstructive pulmonary disease (COPD).

Millions of people around the world, mostly former or current smokers, are living with so-called COPD, marked by the potentially fatal, lung-diminishing conditions of emphysema and chronic bronchitis.

The inhalers in question greatly relieve such symptoms as shortness of breath, wheezing, phlegm and physical exhaustion from light exercise.

And the call comes in line with the Hopkins team’s review and analysis of adverse events recorded in 11 clinical studies that in total involved more than 14,000 men and women with COPD.

The review compared adverse events among those who took inhaled corticosteroids and others who did not.

In the report, researchers found that the increased risk mostly occurred in people taking the highest possible doses, such as 500 micrograms of fluticasone twice daily for a relatively short time (less than two years), whose lung function was 40 percent or lower than expected and who also combined their steroid therapy with bronchodilators, used to keep the airways open.

However, the researchers still don’t know why the treatment increases risk of lung infection, but they suspect that the drugs suppress the immune system.

Despite the increased pneumonia risk, the team found no clear evidence that the drug therapy also pushes up rates for other steroid-related problems, such as bone fractures, nor was there an increase in deaths.

Senior study investigator and critical care specialist Eddy Fan, M.D., said the results of the analysis should not alarm patients or cause them to stop taking their medications but should spur physicians to screen and monitor their patients to find the lowest possible steroid dose that works, especially in the elderly, people with immune system problems, and people who have had multiple bouts of pneumonia and for whom repeat bacterial infection might be a life-threatening complication.

“Inhaled corticosteroids are not of equal benefit to all, and what we are seeing is that the treatment may be more harmful and pose a greater risk of harm to some,” said Fan.

He added: “Physicians really need to strongly evaluate a patient’s individual characteristics before prescribing these steroid medications, and patients, in turn, should weigh the risks and benefits of taking the drugs, despite their proven record in providing symptomatic relief.”

Pulmonologist M. Brad Drummond, M.D., M.H.S., who led the study, said: “catching this bacterial infection can seriously disrupt quality of life, making it harder for COPD patients to breathe and possibly leading to hospitalization.”

The study will appear online in the Journal of the American Medical Association.

Indian telescope observes mysterious absence of hydrogen in galaxies

Wednesday, November 26th, 2008

A team of Australian astronomers has been left puzzled with the mysterious absence of hydrogen from distant galaxies in the far distant reaches of the Universe, which they observed using an Indian telescope.

The astronomers are baffled because hydrogen gas is the most common constituent of normal matter in the Universe, and is the raw material for stars, planets and possible life.

If anything, hydrogen was expected to be more abundant so early in the life of the Universe because it had not yet been consumed by the formation of all the stars and galaxies we know today.

Dr Steve Curran and colleagues at the University of New South Wales made their observations with the Giant Metrewave Radio Telescope in India, which comprises thirty 45-metre-diameter dishes and is one of the world’s most sensitive radio telescopes.

By looking at galaxies in which the light has taken over 11.5 billion years to reach us, they found an apparent lack of hydrogen when the Universe was only two billion years old, long before our own Sun and all other stars in the present Universe had formed.

Stars form when extremely cold clouds of hydrogen collapse under their own gravity until they become dense enough to ignite nuclear fusion.

Over billions of years, this leads the formation of the heavier elements that make up planets, people and other matter.

Each galaxy should contain gas masses equivalent to several billion stars, as in the Milky Way.

“Since hydrogen gas is consumed by star formation, we may expect more hydrogen gas in the distant, and therefore earlier, Universe as all of the stars we see today have yet to form,” said Dr Curran.

His group analysed the data from optical telescopes and found that, although apparently dim due to their immense distances, the distant galaxies actually emit vast amounts of energy.

This energy is generally believed to result from the friction of the material spiralling at close to the speed of light into the black hole lurking within the heart of each galaxy.

These “quasars” are found all over the sky but occur predominantly in the early Universe.

“At such distances, only the most optically bright objects are known,” Dr Curran said. “The intense radiation from the matter accreting into the black hole in these quasars is extreme and we believe that this radiation is ripping the electrons from the atoms, destroying the hydrogen gas,” he added.

This would leave the gas as a soup of free subatomic particles known as a “plasma”, which cannot be detected.

Unhappy Hastings hospital workers walk out

Wednesday, November 26th, 2008

Unhappy Hastings hospital workers with contract offers from management walked picket lines and rallied outside Regina Medical Center in Hastings.

The workers alleged on Monday, saying they already struggle to pay their bills. Union members have been without a contract since Oct. 31.

Union workers say the costs they would bear under the new proposal exceed the pay increase.

Meanwhile, the union called for a two-day strike to take a stand for working families, said Ryan Nagle, a union spokesman.

About 230 union members of Service Employees International Union (SEIU) Healthcare Minnesota started their two-day strike at 6 a.m. after failing to resolve differences with hospital management over pension contributions and health insurance costs.

Low potassium levels may explain diabetes risk in high BP patients

Tuesday, November 25th, 2008

Researchers suggest that drop in potassium levels caused by blood pressures drugs may help explain why people on those medicines are at risk for developing type 2 diabetes.

They found that BP drugs helpfully accelerate loss of fluids, but also deplete important chemicals, including potassium, so that those who take them are generally advised to eat bananas and other potassium-rich foods to counteract the effect.

“Previous studies have told us that when patients take diuretic thiazides, potassium levels drop and the risk of diabetes climbs to 50 percent,” said lead researcher Tariq Shafi, M.H.S., of the Department of Nephrology at Johns Hopkins University School of Medicine.

“Now, for the first time, we think we have concrete information connecting the dots,” he added.

During the study, the researchers examined the data from 3,790 nondiabetic participants in the Systolic Hypertension in Elderly Program (SHEP).

Half of the subjects were treated with chlorthalidone and half with a fake drug.

They found that for each 0.5 milliequivalent-per-liter (MEq/L) decrease in serum potassium, there was a 45 percent increased risk of diabetes.

“This study shows us that as long as physicians monitor and regulate potassium levels, thiazides could be used safely, saving patients thousands of dollars a year,” said Shafi.

“It could be as simple as increasing the consumption of potassium-rich foods like bananas and oranges and/or reducing salt intake, both of which will keep potassium from dropping,” he added.

Man jailed for transmitting deadly micro-organisms during sex

Tuesday, November 25th, 2008

Whenever someone was put behind the bars, everyone could hint what the reasons could have been for such an act. The accused either had been responsible for a theft, rape, murder or any other anti-social activity that one could think about.

Have you heard of a man being jailed for having transmitted micro-organisms like chlamydia and deadly Hepatitis B to a woman while indulging in unprotected sex?

Well, this is indeed an unheard of thing and the first of its kind case in Gloucestershire. Ercan Yasar, 29, a Turk by origin is the man who has been imprisoned and sentenced for two years in the jail for infecting a woman by not informing her of his medical condition. DNA tests have been performed to support this allegation.

Yesar had befriended the victim in August last year when the two met at Cheltenham night club. The two exchanged numbers followed by exchange of text messages and eventually started dating. The two indulged in unprotected sex one afternoon. Thereafter the woman took ill and was hospitalized. On investigation it was revealed that she had contracted the harmful Hepatitis B virus.

Yesar was therefore prosecuted on grounds of causing harm to the woman’s health. He is likely to be
deported back to his country once he finishes serving his sentence.

NASA scraps flagship Mars mission

Saturday, November 22nd, 2008

NASA is scrapping a controversial piece of hardware from its next-generation Mars rover that would have allowed the spacecraft to store rock fragments in a mini-basket for a future mission.

The decision to slash the storage bin from the Mars Science Laboratory’s payload came as engineers raced to meet an October 2009 launch deadline on a project beset by escalating costs and technical challenges.

After consulting with independent scientists, NASA this week notified the Jet Propulsion Laboratory, which manages the mission, to fly the nuclear-powered mega-rover without the container because of its “low science value.” Removing the already-built part also means engineers would not have to spend time testing it.

Project scientist John Grotzinger of the California Institute of Technology said the box would have taken time away from other instruments during the mission.

“The cache would have tied our hands to some extent,” Grotzinger said. “Now it restores our freedom.”

The Mars Science Lab is billed as the most advanced craft to roam the Martian plains. The size of a small sports utility vehicle, it will study whether the environment was habitable in Mars’ early history and will carry high-tech instruments to analyze rocks and soil in greater detail than previous surface missions.

Over USD 1.5 billion has been spent so far to develop the supersized project, but the final price tag is expected to top USD 2 billion.

The storage box was controversial ever since it was added to the project last year long after the mission goals had been defined.

Study Finds Online Activities Help Teens’ Development

Saturday, November 22nd, 2008

Online games, social-networking Web sites, and chat rooms are empowering and motivating for teens and help with their development, according to a study released Thursday by the John D. and Catherine T. MacArthur Foundation at the American Anthropological Association’s annual meeting. The study covered three years and 5,000 hours of observing teens online.

The report is part of a $50 million initiative to investigate how digital media affect the way teenagers learn and socialize. Twenty-eight researchers conducted the study.

Wasting Time?

“When adults look at teens today, they think what they are doing is different and seem to be wasting a lot of time online hanging out with their friends or playing video games, and these are activities that can seem quite foreign,” said Mizuko Ito, the report’s lead author and a researcher at the University of California Irvine. “But when we look closely at what kids are doing, it’s not much different than what their parents did. They are hanging out with their friends, finding romantic partners, and trying to identify their status and identity.”

Ito added that today’s teens are being raised with technologies that allow them to pursue self-directed learning on their own terms, on their own time, and without the restrictions of a classroom setting. This gives the teens a feeling of freedom and autonomy.

“This is very different from how kids learn in school when they are handed a set body of knowledge they are asked to master and the expertise really resides in the teachers,” Ito said.

“Our feeling after spending time with kids was that a lot of the worries about predators are overblown given what kids are really doing online,” Ito said in a phone interview. “When kids are engaged in friendship-driven (interactions online), they are communicating with kids they already know. They actually think it is pretty creepy if there are adults on that page and their ideas are not that far off from their parents.”

Asked about teens spending too much time online, Ito said that as with anything, it is a matter of balance. “Look, let’s look carefully at what kids are getting from the participation and look at ways to guide them through the participation so it is more productive,” she said.

Some Specifics

There were two significantly different categories in which the teens were motivated to engage online. They were either driven by interest or friendship, according to the 58-page report.

Four specific findings stood out from the rest of the research.

One major finding is that there is a generation gap in how parents and teens view the teen’s online activities. Adults see the activities as a distraction and are left in the dark about what their teens are doing online. Teens, on the other hand, understand the value of the Internet and are motivated to participate.

Another finding shows that teens are not taking full advantage of the Internet. They are using the social networks to chat and post photos and make friends, which are important to their development, but they are not tapping into other existing opportunities and “geeking out” by learning about astronomy, foreign languages, and other subjects only a few clicks away.

Teens are also fine-tuning their social skills online by learning the basic social and technical skills needed to interact in today’s digital world.

Peer pressure also takes on a new role online. Teens are reporting that they are more motivated by their peers online with public spaces that allow the teens to interact and provide feedback to one another.

The Challenges

While teens are using the Internet for both social and intellectual development, they are also facing significant challenges on how to manage their relationships online, according to the study.

Researchers say online media, messages and profiles posted by teens on social-networking sites such as MySpace and Facebook are often passed around through the Internet and are difficult to take back once they are posted. Controversial photos have been posted online for a specific audience, only to then filter through the Internet.

“Most parents knew very little about what their kids did online, and struggled to give real guidance and help,” said Ito. In some cases, however, the researchers found that parents and their children came together around gaming or shared digital-media projects, where both kids and adults brought expertise to the table.