Saturday, July 25, 2009

ScienceDaily: Latest Science News

ScienceDaily: Latest Science News


Ants More Rational Than Humans?

Posted: 25 Jul 2009 02:00 PM PDT

Researchers now show that ants can accomplish a task more rationally than our -- multimodal, egg-headed, tool-using, bipedal, opposing-thumbed -- selves. This is not the case of humans being "stupider" than ants.

Injection Reverses Heart-attack Damage

Posted: 25 Jul 2009 02:00 PM PDT

Injured heart tissue normally can't regrow, but researchers now offer a groundwork for regenerating heart tissue after a heart attack, in patients with heart failure, or in children with congenital heart defects. They show that a growth factor involved in the development of the heart and nervous system can spur heart-muscle growth and recovery of cardiac function when injected systemically into animals after a heart attack.

New Method To Cleaner And More Efficient Carbon Dioxide Capture

Posted: 25 Jul 2009 02:00 PM PDT

Researchers have developed a screening method that would use ionic liquids -- a special type of molten salt that becomes liquid under the boiling point of water (100 degrees Celsius) -- to separate carbon dioxide from its source, making it a cleaner, more viable and stable method than what is currently available.

Improving Impaired Attention May Help Patients Recover From Stroke

Posted: 25 Jul 2009 02:00 PM PDT

An attention training program may be a viable and effective way to improve attention span in stroke survivors. Survivors who received attention training had higher improved rates of attention compared to patients receiving standard rehabilitation.

Computer Forensics Links Internet Postcards To Virus

Posted: 25 Jul 2009 02:00 PM PDT

Fake Internet postcards circulating through e-mail inboxes worldwide are carrying links to the virus known as Zeus Bot, said a computer forensics expert. Zeus Bot has been named America's most pervasive computer Botnet virus by Network World magazine, reportedly infecting 3.6 million US computers.

Caffeine-Drinking Teens Don’t Get Enough Sleep

Posted: 25 Jul 2009 02:00 PM PDT

Fueled by caffeine teens are up late at night, and they aren't just focusing on homework. Web surfing, text messaging and gaming are keeping them up for hours into the night, according to a recent study.

Hubble Captures Rare Jupiter Collision

Posted: 25 Jul 2009 08:00 AM PDT

The checkout and calibration of the NASA/ESA Hubble Space Telescope has been interrupted to aim the recently refurbished observatory at a new expanding spot on the giant planet Jupiter. The spot, caused by the impact of a comet or an asteroid, is changing from day to day in the planet's cloud tops.

Some Blood Pressure Drugs May Help Protect Against Dementia, Study Shows

Posted: 25 Jul 2009 08:00 AM PDT

A particular class of medication used to treat high blood pressure could protect older adults against memory decline and other impairments in cognitive function, according to a new study.

Cell Membranes Applied To Manufactured Surfaces Could Lead To New Class Of Self-assembling Materials

Posted: 25 Jul 2009 08:00 AM PDT

Applying biological molecules from cell membranes to the surfaces of artificial materials is opening peepholes on the very basics of cell-to-cell interaction. Two new articles suggest that putting lipids and other cell membrane components on manufactured surfaces could lead to new classes of self-assembling materials for use in precision optics, nanotechnology, electronics and pharmaceuticals.

Immune System's Natural Killer Cells Linked To Infant Liver Disease

Posted: 25 Jul 2009 08:00 AM PDT

Scientists have linked an overactive response by one of the immune system's key weapons against infection -- natural killer cells -- to biliary atresia in infants, a disease where blocked bile ducts can cause severe liver damage and death. The study shows blocking a gene that helps NK cells attack bile duct tissues may be a way to treat a common cause of liver disease in children.

Beyond Flash: Memories Are Made Of This

Posted: 25 Jul 2009 08:00 AM PDT

The race is on for a successor to the popular 'flash' memory used in portable devices. Researchers think they have found a candidate in novel materials combined with a simple, easily fabricated 'crossbar' architecture.

Risky Driving Puts Young Drivers At High Danger Of Crashing

Posted: 25 Jul 2009 08:00 AM PDT

Australia's largest study of young drivers has shown that risky driving habits are putting young drivers at a significantly increased risk of crashing, irrespective of their perceptions about road safety. The study surveyed 20,000 young drivers and examined their crashes reported to police. Young drivers involved in the study who said they undertook risky driving were 50 percent more likely to crash.

Colic In Babies May Be Caused By Gut Bacteria

Posted: 25 Jul 2009 02:00 AM PDT

Researchers say one organism discovered during their study may unlock the key to what causes colic, inconsolable crying in an otherwise healthy baby. The study pointed to an organism called Klebsiella, a normally occurring bacterium that can be found in the mouth, skin and intestines. In the study of 36 babies, half of which had colic, researchers found the bacterium and gut inflammation in the intestines of the babies with colic.

Diet High In Omega-3 Fatty Acids May Help Prevent A Leading Cause Of Blindness Among Elderly

Posted: 25 Jul 2009 02:00 AM PDT

Current research suggests that a diet high in omega-3 fatty acids may help prevent one of the leading causes of legal blindness among the elderly. Age-related macular degeneration (AMD), loss of vision in the center of the visual field (macula) due to retinal damage, is one of the leading causes of legal blindness among the elderly. Approximately 10% of people from 66 to 74 years of age will develop some level of macular degeneration, making it difficult for them to read or even recognize faces.

Indications For Volcanic Eruptions In The Younger Geological History Found In Labrador Sea

Posted: 25 Jul 2009 02:00 AM PDT

Scientists have researched the geology of the seabed in the Labrador Sea on board of RV Maria S. Merian. They have studied the so-called Eirik Drift at the southern tip of Greenland, a structure of several hundred kilometers length formed like a ridge. They discovered a submarine mountain (seamount) at the southwestern fringe of their area of investigation that indicates volcanic eruptions during the past few million years.

Clinical Trials To Test 2009 H1N1 Influenza Vaccine Candidates Set

Posted: 25 Jul 2009 02:00 AM PDT

Scientists in a network of medical research institutions across the United States are set to begin a series of clinical trials to gather critical data about influenza vaccines, including two candidate H1N1 flu vaccines.

New Software To Understand Viruses

Posted: 25 Jul 2009 02:00 AM PDT

Computer scientists and biologists have developed software which provides a better understanding of how viruses evolve.

The Good Life: Where Psychology Stands On Living Well

Posted: 25 Jul 2009 02:00 AM PDT

Unfortunately for us, there is no formula for fulfillment or guide to life satisfaction; however, humans have turned to philosophy, religion and science time and again for answers to our existential questions. We may have come a long way since Confucius and Plato, and science continues to piece together some of the answers, but what have we learned so far?

'Bacterial Computers': Genetically Engineered Bacteria Have Potential To Solve Complicated Mathematical Problems

Posted: 24 Jul 2009 05:00 PM PDT

Researchers have created "bacterial computers" with the potential to solve complicated mathematics problems. Scientists demonstrate that computing in living cells is feasible, opening the door to a number of applications. The second-generation bacterial computers illustrate the feasibility of extending the approach to other computationally challenging math problems.

New Drug May Reduce Heart Attack Damage

Posted: 24 Jul 2009 05:00 PM PDT

A novel drug that targets a master disease-causing gene can dramatically reduce heart muscle damage after a heart attack and may lead to significantly improved patient outcomes, researchers have shown.

NASA Celebrates Chandra X-Ray Observatory's 10th Anniversary

Posted: 24 Jul 2009 05:00 PM PDT

Ten years ago, on July 23, 1999, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit. Chandra has doubled its original five-year mission, ushering in an unprecedented decade of discovery for the high-energy universe.

Risk Of Developing Deep Vein Thrombosis During A Flight Is Often Overestimated, According to Some Experts

Posted: 24 Jul 2009 05:00 PM PDT

The risk of developing deep vein thrombosis during a long flight is often overestimated. According to some researchers, this condition is very unlikely in healthy travelers. When people wear a cast or splint after a sports accident, on the other hand, many are not aware that they have an increased risk of deep vein thrombosis in their leg and pelvic area.

DNA 'Sloppier Copier' Surprisingly Efficient: Three Major Puzzles About Famous Enzyme Solved

Posted: 24 Jul 2009 05:00 PM PDT

The "sloppier copier" is also the best sixth man in the DNA repair game, a new article shows.

Footwear Alters Normal Form And Function Of The Foot

Posted: 24 Jul 2009 05:00 PM PDT

A habitually shod lifestyle has consequences for the biologically normal anatomy and function of the foot.

Silicon With Afterburners: New Process Could Be Boon To Electronics Manufacturer

Posted: 24 Jul 2009 02:00 PM PDT

Scientists have found a method of attaching molecules to semiconducting silicon that may help manufacturers reach beyond the current limits of Moore's Law as they make microprocessors both smaller and more powerful.

Central Nervous System Repair? Neuronal Survival And Axonal Regrowth Obtained In Vitro

Posted: 24 Jul 2009 02:00 PM PDT

While repair of the central nervous system has long been considered impossible, researchers have just developed a strategy that could promote neuronal regeneration after injury.

Animal TB 'Tracker' Aims To Speed Drug And Vaccine Studies

Posted: 24 Jul 2009 02:00 PM PDT

Researchers have developed a novel way to monitor in real time the behavior of the TB bacterium in mouse lungs noninvasively pinpointing the exact location of Mycobacterium tuberculosis. The new monitoring system is expected to speed up what is currently a slow and cumbersome process to test the safety and efficacy of various TB drug regimens and vaccines in animals. Plans are already under way for developing a similar system to monitor TB disease in humans.

Sticky Protein Helps Reinforce Fragile Muscle Membranes

Posted: 24 Jul 2009 02:00 PM PDT

A new study shows why muscle membranes don't rupture when healthy people exercise. The findings shed light on a mechanism that appears to protect cells from mechanical stress. The study also helps explain why muscle damage is so severe when this mechanism is disrupted, which occurs in certain muscular dystrophies.

Process For 'Surgical' Genetic Changes In Plants Developed

Posted: 24 Jul 2009 02:00 PM PDT

Scientists have developed a process that will make genetic changes in plant genes much more efficient, practical and safe.

Brewery To Be Built At University

Posted: 24 Jul 2009 02:00 PM PDT

A fully functioning micro-brewery is to be built at The University of Nottingham. The facility will enhance its research in brewing science.

No comments: