ScienceDaily: Latest Science News

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• Plant Communication: Sagebrush Engage In Self-recognition And Warn Of Danger
• Severely Memory-deficit Mutant Mouse Created
• Antibiotics-resistant Gulls Worry Scientists
• Punching Holes Into Herpes Viruses
• Is Nanotechnology Safe? Interactions Between Nanomaterials And Biological Systems Explored
• Got Ear Plugs? You May Want To Sport Them On The Subway And Other Mass Transit, Researchers Say
• Herschel’s Daring Test: A Glimpse Of Things To Come
• New Vaccination Strategy May Protect Against Both Lethal 1918 And H5N1 Influenza Viruses
• Researchers 'All Aglow' Over New Test Of Toxin Strength
• Certain Zinc-based Cold Remedies Linked To Loss Of Sense Of Smell, FDA Says
• Method For Computing Evolutionary Trees Could Revolutionize Evolutionary Biology
• Aerobically Unfit Young Adults On Road To Diabetes In Middle Age
• 1.02 Billion People Hungry: One Sixth Of Humanity Undernourished, More Than Ever Before
• Targeting Tumor Behavior May Lead To New Liver Cancer Drugs
• Deadly Parasite Could Endanger Salmon And Trout Populations In U.K.
• Novel Discovery In Dendritic Cell Signalling Pathways Pave The Way For New Therapeutic Targets
• Online Tutorials Help Elementary School Teachers Make Sense Of Science
• Nearly Half Of Older Patients Projected To Die While Waiting For Kidney Transplant
• Mate Selection: Honesty In Advertising Pays Off
• Key Found To How Tumor Cells Invade The Brain In Childhood Cancer
• Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath
• Radically Different Approach To Treating Early Breast Cancer
• Genome Of Nitrogen-fixing, Soil-living Bacterium Sequenced
• Teens Are Heading In Wrong Direction: Likely To Have Sex, But Not Use Contraception
• Mystery Of The Missing Sunspots Solved?
• Cerebrospinal Fluid Shows Alzheimer's Disease Deterioration Much Earlier
• 'Weedy' Bird Species May Win As Temperatures Rise
• Omega-3 Fatty Acids May Protect Against Progression Of Age-related Macular Degeneration
• Electronics Industry May Be Entering A New Phase
• Anxious Parents Misdiagnose Milk Formula Intolerance

Plant Communication: Sagebrush Engage In Self-recognition And Warn Of Danger Posted: 20 Jun 2009 02:00 PM PDT Sagebrush engaged in self-recognition and communicate danger to their "clones" or genetically identical cuttings planted nearby, researchers show.

Severely Memory-deficit Mutant Mouse Created Posted: 20 Jun 2009 02:00 PM PDT A Japanese research group has successfully generated a novel kinase-dead mutant mouse of the CaMKIIalpha gene that completely and exclusively lacks its kinase activity. They examined hippocampal synaptic plasticity and behavioral learning of the mouse, and found a severe deficit.

Antibiotics-resistant Gulls Worry Scientists Posted: 20 Jun 2009 02:00 PM PDT Antibiotic-resistant bacteria are spreading to and throughout the environment. The resistance pattern for antibiotics in gulls is the same as in humans, and a new study shows that nearly half of Mediterranean gulls in southern France have some form of resistance to antibiotics.

Punching Holes Into Herpes Viruses Posted: 20 Jun 2009 02:00 PM PDT Scientists have completed the first description of the mechanics of so-called nuclear herpes virus capsids.

Is Nanotechnology Safe? Interactions Between Nanomaterials And Biological Systems Explored Posted: 20 Jun 2009 02:00 PM PDT Tremendous growth in the development of nanomaterials with enhanced performance characteristics which are being used for commercial and medical applications prompts researchers to take a proactive role in examining the nano-bio interface to identify potential risks of engineered nanomaterials and explore methods for safer designs for use in drug delivery therapeutics and commercial products.

Got Ear Plugs? You May Want To Sport Them On The Subway And Other Mass Transit, Researchers Say Posted: 20 Jun 2009 02:00 PM PDT Recent public health studies on the US mass transit system have identified several sources of environmental hazards associated with mass transit, including excessive noise. Scientists have found that MTA subways had the highest average noise levels of all mass transit in New York City, with levels high enough to potentially increase the risk of noise induced hearing loss.

Herschel’s Daring Test: A Glimpse Of Things To Come Posted: 20 Jun 2009 08:00 AM PDT Herschel opened its 'eyes' on 14 June and the Photoconductor Array Camera and Spectrometer obtained images of M51, 'the whirlpool galaxy' for a first test observation. Scientists obtained images in three colors from the observation, which clearly demonstrate the excellence of Herschel, the largest infrared space telescope ever flown.

New Vaccination Strategy May Protect Against Both Lethal 1918 And H5N1 Influenza Viruses Posted: 20 Jun 2009 08:00 AM PDT A new study suggests that vaccination with 1918 H1N1 influenza virus-like particles not only protected mice and ferrets against the lethal 1918 influenza virus, but also displayed cross-reactive immunity against the potentially pandemic H5N1 influenza virus.

Researchers 'All Aglow' Over New Test Of Toxin Strength Posted: 20 Jun 2009 08:00 AM PDT A new NIST assay using a "glow or no glow" technique may soon help the US Department of Homeland Security defend the nation against a spectrum of biological weapons that could be used in a terrorist attack.

Certain Zinc-based Cold Remedies Linked To Loss Of Sense Of Smell, FDA Says Posted: 20 Jun 2009 08:00 AM PDT The U.S. Food and Drug Administration has advised consumers to stop using three products marketed over-the-counter as cold remedies because they are associated with the loss of sense of smell (anosmia). Anosmia may be long-lasting or permanent.

Method For Computing Evolutionary Trees Could Revolutionize Evolutionary Biology Posted: 20 Jun 2009 08:00 AM PDT Detailed, accurate evolutionary trees that reveal the relatedness of living things can now be determined much faster and for thousands of species with a computing method developed by computer scientists and a biologist.

Aerobically Unfit Young Adults On Road To Diabetes In Middle Age Posted: 20 Jun 2009 08:00 AM PDT Most healthy 25 year olds don't stay up at night worrying whether they are going to develop diabetes in middle age. But many should be concerned. Researchers have found young adults with low aerobic fitness levels are two to three times more likely to develop diabetes in 20 years than those who are fit. The study also shows that young women and young African-Americans are less fit, placing more of them at risk for diabetes.

1.02 Billion People Hungry: One Sixth Of Humanity Undernourished, More Than Ever Before Posted: 20 Jun 2009 02:00 AM PDT World hunger is projected to reach a historic high in 2009 with 1,020 million people going hungry every day, according to new estimates published by the U.N.'s Food and Agriculture Organization.

Targeting Tumor Behavior May Lead To New Liver Cancer Drugs Posted: 20 Jun 2009 02:00 AM PDT Cancer researchers have used computational and genomic methods to identify possible anti-cancer agents that target multiple genes simultaneously. The researchers were seeking agents that might reverse gene changes in invasive liver cancer cells and block the spread of the disease in the body. The strategy is a new way to find potentially useful anti-cancer agents because it identifies agents that strike multiple targets involved in a particular stage of disease development.

Deadly Parasite Could Endanger Salmon And Trout Populations In U.K. Posted: 20 Jun 2009 02:00 AM PDT Stocks of the UK's Atlantic salmon along with varieties of domestic brown trout could be under threat from a deadly parasite according to new research. The agent - Sphaerothecum destruens – was originally found in the US and is closely associated with 'invasive' fish species including topmouth gudgeon and could prove deadly to native salmonids (Atlantic salmon, brown trout).

Novel Discovery In Dendritic Cell Signalling Pathways Pave The Way For New Therapeutic Targets Posted: 20 Jun 2009 02:00 AM PDT Scientists have discovered another signaling pathway for the activation and apoptosis, or programmed cell death, of dendritic cells.

Online Tutorials Help Elementary School Teachers Make Sense Of Science Posted: 20 Jun 2009 02:00 AM PDT Interactive Web-based science tutorials can be effective tools for helping elementary school teachers construct powerful explanatory models of difficult scientific concepts, and research shows the interactive tutorials are just as effective online as they are in face-to-face settings, says an expert in science education.

Nearly Half Of Older Patients Projected To Die While Waiting For Kidney Transplant Posted: 20 Jun 2009 02:00 AM PDT Forty-six percent of patients over age 60 currently on the waiting list for a kidney transplant will die before they receive an organ from a deceased donor, reports a new study.

Mate Selection: Honesty In Advertising Pays Off Posted: 19 Jun 2009 05:00 PM PDT Throughout the animal kingdom brilliant colors or elaborate behavioral displays serve as "advertisements" for attracting mates. But, what do the ads promise, and is there truth in advertising? Researchers theorize that when males must provide care for the survival of their offspring, the males' signals will consistently be honest -- and they may devote more of their energy to caring for their offspring than to being attractive.

Key Found To How Tumor Cells Invade The Brain In Childhood Cancer Posted: 19 Jun 2009 05:00 PM PDT Despite great strides in treating childhood leukemia, a form of the disease called T-cell acute lymphoblastic leukemia (T-ALL) poses special challenges because of the high risk of leukemic cells invading the brain and spinal cord of children who relapse. Now, a new study reveals the molecular agents behind this devastating infiltration of the central nervous system. The finding may lead to new drugs that block these agents and thus lower the risk of relapse.

Toward An 'Electronic Nose' To Sniff Out Kidney Disease In Exhaled Breath Posted: 19 Jun 2009 05:00 PM PDT Scientists have identified the key substances in exhaled breath associated with healthy and diseased kidneys — raising expectations, they say, for development of long-sought diagnostic and screening tests that literally sniff out chronic renal failure (CRF) in its earliest and most treatable stages.

Radically Different Approach To Treating Early Breast Cancer Posted: 19 Jun 2009 05:00 PM PDT A radically different approach to choosing the best treatment options for early breast cancer has been proposed by an international panel of experts. The report represents the consensus on early breast cancer treatment that emerged from the conference of more than 4,800 participants from 101 countries, which took place in March 2009.

Genome Of Nitrogen-fixing, Soil-living Bacterium Sequenced Posted: 19 Jun 2009 05:00 PM PDT Researchers have completed the genome sequence of Azotobacter vinelandii, uncovering important genetic information that will contribute to a more complete understanding of the biology of this versatile, soil-living bacterium and pave the way for new applications, including the possible use of A. vinelandii for the production of other proteins.

Teens Are Heading In Wrong Direction: Likely To Have Sex, But Not Use Contraception Posted: 19 Jun 2009 05:00 PM PDT Between 2003 and 2007, the progress made in the 1990s and early 2000s in improving teen contraceptive use and reducing teen pregnancy and childbearing stalled, and may even have reversed among certain groups of teens, according to a new study.

Mystery Of The Missing Sunspots Solved? Posted: 19 Jun 2009 02:00 PM PDT The sun is in the pits of a century-class solar minimum, and sunspots have been puzzlingly scarce for more than two years. Now, for the first time, solar physicists might understand why. Researchers have discovered that a jet stream deep inside the sun is migrating slower than usual through the star's interior, giving rise to the current lack of sunspots.

Cerebrospinal Fluid Shows Alzheimer's Disease Deterioration Much Earlier Posted: 19 Jun 2009 02:00 PM PDT It is possible to determine which patients run a high risk of developing Alzheimer's disease and the dementia associated with it, even in patients with minimal memory impairment.

'Weedy' Bird Species May Win As Temperatures Rise Posted: 19 Jun 2009 02:00 PM PDT Climate change is altering North American winter bird communities in ways that models currently favored by ecologists fail to predict. Current distributions of animals among different climate zones suggest that, as habitats warm, numbers of species will increase and that those species will be smaller in size and restricted to narrower geographic ranges, but only one of those predictions has held for North American birds over the past quarter century.

Omega-3 Fatty Acids May Protect Against Progression Of Age-related Macular Degeneration Posted: 19 Jun 2009 02:00 PM PDT Omega-3 fatty acids found in fatty fish such as tuna and salmon may protect against progression of age-related macular degeneration (AMD), but the benefits appear to depend on the stage of disease and whether certain supplements are taken.

Electronics Industry May Be Entering A New Phase Posted: 19 Jun 2009 02:00 PM PDT Electronic devices of the future could be smaller, faster, more powerful and consume less energy because of a new discovery.

Anxious Parents Misdiagnose Milk Formula Intolerance Posted: 19 Jun 2009 02:00 PM PDT Some parents may be unnecessarily switching infant milk formulas for their healthy infants. A new study found that many parents misinterpret common baby behaviors as milk intolerance and needlessly switch formulas without consulting a health professional.

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