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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

Older people more prone to distraction than younger ones

Wednesday, November 26th, 2008

A Canadian study has provided further evidence that older adults are less capable than their younger counterparts in filtering out distracting information.

Scientists with the Rotman Research Institute at Baycrest have revealed that they made this discovery while scanning the brains of some research participants while they were inside the noisy functional magnetic resonance imaging (fMRI) scanner.

The researchers said that it was due to the annoying noise of the scanner that they could discover a unique brain activity underlying memory-encoding failure, which appeared to occur only in older brains.

During the study, 12 younger adults of average age 26 and 12 older adults of average age 70 participated in a face recognition task that involved having their brains scanned with fMRI, as they were shown pictures of faces and later again when trying to recall whether they’d seen each face before.

The study showed that when younger and older adults had difficulty encoding a new memory (certain face), which was marked by decreased activity in brain regions important for encoding, such as the hippocampus.

Though the researchers were not surprised by that finding because of an abundance of scientific evidence indicating the importance of hippocampus for making memories, they observed that the older brains showed additional increased activation in certain regions during memory encoding failure that was not found in younger brains.

“The older brains showed increased activation in certain regions that normally should be quieter or tuned down,” said Dale Stevens, who led the study as a psychology graduate at Baycrest’s Rotman Research Institute, with senior scientists Drs. Cheryl Grady and Lynn Hasher, both of whom are distinguished researchers in aging, memory, attention and distraction.

“The auditory cortex and prefrontal cortex, which are associated with external environmental monitoring, were idling too high. The older brains were processing too much irrelevant information from their external environment - basically the scanner noise,” said Dr. Stevens, who is now a post-doctoral fellow in the Department of Psychology and Cognitive Neuroscience at Harvard University.

The researcher said that the younger brains did not show the abnormal high idling observed in older participants, during their failed memory encoding.

While older adults performed as well as their younger cohorts in the number of faces correctly recognized, the older adults forgot more faces overall than younger adults.

Dr. Stevens said that that was partially due to the inability of the older brains to tune out the distracting noise, when they were trying to form new memories of faces.

The researcher revealed that researcher participants are generally given ear plugs and cushions around the head and ears to block the “jack hammer” sort of noise the fMRI scanner makes, but older individuals complain more often than younger ones that the noise is irritating.

“Not only are we reporting new brain evidence of the well known problem of distraction in aging, but we show that the fMRI might inherently make older adults’ cognitive performance worse than it would be in the real world, outside the scanner,” noted Dr. Grady.

A research article was published by the Journal of Cognitive Neuroscience.

Cranberries can help prevent urinary tract infections

Wednesday, November 26th, 2008

ranberries can help prevent urinary tract infections (UTIs).

Cranberries are useful in preventing these infections because the fruit’s high acid content can help inhibit bacterial growth along the urinary tract.

If left untreated, a simple UTI could spell trouble for the bladder and kidneys.

UTIs occur when bacteria enter the urinary tract and multiply in the urethra. The lining of the urethra becomes red and irritated, like a sore throat.

If the infection in the urethra (urethritis) is left unchecked, bacteria can move deeper into the urinary tract to the bladder (cystitis) and throughout the ureters into the kidneys (pyelonephritis).

Kidney infections are extremely dangerous and can lead to life-threatening conditions such as bacteremia (bacteria in the bloodstream) if left untreated.

However, urologists has warned that cranberries might not help everyone and urge patients to seek treatment if they have UTI symptoms.

Other methods of UTI prevention include proper hydration and judicious use of antibiotics prescribed by a physician.

Papua province plans to implant microchips in AIDS patients

Wednesday, November 26th, 2008

Now some HIV/AIDS patients will be implanted with microchips in a bid to prevent them infecting others, in Papua province of Indonesia.

Under the bylaw, if a patient with HIV/AIDS was found to have infected a healthy person, there would be a penalty.

The local parliament was expected to introduce the controversial legislation in Papua, which lies in Indonesia’s easternmost fringe, by end of this month, lawmaker John Manangsang said.

Health experts say the disease has been spreading rapidly from prostitutes to housewives in the past years.

The number of HIV/AIDS cases per 100,000 people in Papua is nearly 20 times the national average in Indonesia, according to a government study in 2007.

Synthetic sea worm glue may help repair fractured bones in future

Tuesday, November 25th, 2008

Researchers at the University of Utah have created a synthetic version of the superglue that sandcastle worms combine with sand and shell to build their sturdy tube-shaped homes, and believe that it may one day be used to repair shattered bones in knees, other joints and the face.

“You would glue some of the small pieces together,” says Russell Stewart, associate professor of bioengineering, and senior author of the study to be published online within a week in the journal Macromolecular Biosciences.

“When you break the top of a bone in a joint, those fractures are difficult to repair because if they are not aligned precisely, you end up with arthritis and the joint won’t work anyway. So it’s very important to get those pieces aligned as well as possible,” he adds.

The researcher has revealed that the synthetic sea-worm glue performed 37 percent as well as commercial superglue during lab tests using cow bone pieces from groceries.

He says that this glue may be tested on animals within a year or two, and on humans in five to 10 years.

Stewart has made it clear that the synthetic sandcastle worm glue will not be suitable for repairing large fractures such as major leg and arm bones, for which rods, pins and screws are used.

He, however, envisions that it may be used for gluing together small bone fragments in fractured knees, wrists, elbows, ankles, other joints, and the face and skull.

“If a doctor rebuilds a joint with pins and screws, generally weight is kept off that joint until it’s healed. So our goal isn’t to rebuild a weight-bearing joint with glue. It is to hold the pieces together in proper alignment until they heal. … We see gluing the small fragments back into the joint,” Stewart says.

In their study report, the researchers wrote: “It is especially difficult to maintain alignment of small bone fragments by drilling them with screws and wires. An adjunctive adhesive could reduce the number or volume of metal fixators while helping maintain accurate alignment of small bone fragments to improve clinical outcomes.”

Bioengineer Patrick Tresco, associate dean for research at the University of Utah’s College of Engineering, says: “Most current adhesives do not work when surfaces are wet so they are no good for holding together bone, which is wet and bloody. There is nothing like it (the synthetic worm glue) on the market today.”

The researchers also say that the synthetic glue can deliver pain killers, growth factors, antibiotics, anti-inflammatory medicines or even stem cells to sites where bone fragments are glued, “simultaneously fixing the bone and delivering potent drugs or even genes to the spots where they are needed.”

According to them, it may also be used to firmly attach “tissue scaffolds” where pieces of bone are cut out due to cancer, in order to encourage regrowth of the missing bone.

Stewart hopes to make better versions that have more bonding power, are biocompatible in the human body and biodegradable.

“Ultimately, we intend to make it so it is replaced by natural bone over time. We don’t want to have the glue permanently in the fracture.” Stewart says some synthetic superglues or “instant glues” are used instead of sutures for superficial skin wounds. But because of toxicity or toxic byproducts, “they are not suitable for deep tissue use,” including bone repair, he says.

Urine recycler: Astronauts continue work

Tuesday, November 25th, 2008

Astronauts have started work on urine recycler system, that’s designed to turn waste into drinkable water.

According to the reports astronauts are using the water from the system only.

At the same time, Endeavour astronauts will conduct a fourth spacewalk on Monday to work on joints on the solar panels that power the ISS.

NASA scientists on the ground were to continue troubleshooting and hoped to get the system up and running before the space shuttle Endeavour is due to leave the ISS on Thursday.

On Sunday, astronauts removed grommets from the unit that NASA believed were hitting a sensor that caused it to shut down after about two hours.

Living to be a 100 can be a pretty depressing affair

Monday, November 24th, 2008

Most elderly people, who make it to 100 years, suffer from depression that is poorly understood and under diagnosed, according to a new study.

The centenarians face numerous problems including health, finance, death of a spouse or loved one, and many suffer from depression that has been under diagnosed.

“Centenarians are still rare, and depression hasn’t been studied thoroughly in this group,” said Adam Davey, a developmental psychologist in the College of Health Professions at Temple University.

“We’ve found that it’s a very under diagnosed condition among people over 100 years old, yet it’s one of the most easily treated forms of mental illness,” he added.

The research team led by Davey looked at indicators of depression among 244 centenarians and found that more than 25 percent showed clinically relevant levels of depressive symptoms, yet only 8 percent reported having a current diagnosis of depression.

Davey said that further study was needed to pinpoint the reason for these high levels.

He, however, added that his research suggested a number of factors, including poor nutritional status, urinary incontinence, limited physical activity and past history of anxiety.

“People who suffer from depression tend to have a high risk of mortality, so it’s puzzling to see higher numbers among the oldest old,” he said.

“Caregivers often focus on the physical part of health. Or, when they look at the mental health of older adults, they focus more on dementia. But depression is important to consider too - it’s not just something that younger people suffer from,” he added.

The study was presented at the Gerontological Society of America’s annual meeting

Stress-free lifestyle can keep cancer at bay

Saturday, November 22nd, 2008

Stress-free lifestyle can help fight cancer, say Ohio State University researchers.

The results of the study were based on a research that included a small number of women recovering from breast cancer surgery.

The patients took part in a psychological “intervention” designed to reduce stress and promote a healthy lifestyle, and the analysis revealed that the women survived longer and were less likely to relapse than those who did not, according to the study published in the journal Cancer.

Starting in 1994, researcher Barbara Andersen and her colleagues selected 227 women recovering from breast cancer surgery and about to undergo chemotherapy, reports New Scientist.

Half received a year-long intervention that included encouragement to relax, delegate stressful tasks, exercise, eat healthily and stick to medication.

Twenty-four per cent of women who received the intervention relapsed within a follow-up period lasting for 11 years on average, compared with 29 per cent of those who did not.

But, by taking into account how long remission lasted, and controlling for factors affecting the risk of relapse, such as age and cancer severity, Andersen’s team calculates that the intervention reduced the risk of relapsing by 45 per cent and of dying by 55 per cent.