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How Did Flowering Plants Evolve to Dominate Earth?
Scientists have discovered the
evolutionary step which allowed
flowering plants to become the
most abundant and ecologically
successful group of plants on
Earth. ... > full story
- more on:
Shape Shifters: Researchers Create New Breed of Antennas
Antennas aren't just for listening
to the radio anymore. They're used
in everything from cell phones to
GPS devices. New research is
revolutionizing the field of
antenna design -- creating
shape-shifting antennas that open
... > full story
- more on:
Nasa's Fermi Telescope Peers Deep Into a 'Micro-Quasar'
NASA's Fermi Gamma-ray Space
Telescope has made the first
unambiguous detection of
high-energy gamma-rays from an
enigmatic binary system known as
Cygnus X-3. The system pairs a
hot, massive star with a compact
... > full story
- more on:
Bacteria 'Invest' Wisely to Survive Uncertain Times, Scientists Report
Like savvy Wall Street money
managers, bacteria hedge their
bets to increase their chances of
survival in uncertain times,
strategically investing their
biological resources to weather
... > full story
- more on:
Naked Mole Rats May Hold Clues to Surviving Stroke
Naked mole-rats can withstand
brain oxygen deprivation for more
than 30 minutes -- more than any
other mammal. The finding may
provide clues for developing new
brain injury treatments following
stroke or heart attack. ... > full story
- more on:
Glimpse at Earth's Crust Deep Below Atlantic Ocean
Long-term variations in volcanism
help explain the birth, evolution
and death of striking geological
features called oceanic core
complexes on the ocean floor, says
a geologist. ... > full story
- more on:
Amphibians as Environmental Omen Disputed
Amphibians, for years considered a
leading indicator of environmental
degradation, are not uniquely
susceptible to pollution,
according to a new meta-analysis. ... > full story
- more on:
Black Hole Caught Zapping Galaxy Into Existence?
Which come first, the supermassive
black holes that frantically
devour matter or the enormous
galaxies where they reside? A
brand new scenario has emerged
from a recent set of outstanding
observations of a black hole
... > full story
- more on:
Birth Control Pill for Men? Scientists Find a Hormonal on-and-Off Switch for Male Fertility
Scientists have found how and
where androgenic hormones work in
the testis to control normal sperm
production and male fertility.
This opens a promising avenue for
... > full story
- more on:
Big Freeze Plunged Europe Into Ice Age in Months
In the film "The Day After
Tomorrow," the world enters the
icy grip of a new glacial period
within the space of just a few
weeks. New research shows this
scenario may not be so far from
the truth after all. ... > full story
- more on:
Roll over headlines to view top news summaries:
- How Did Flowering Plants Dominate Earth?
- Shape Shifters: New Breed of Antennas
- Peering Deep Into a 'Micro-Quasar'
- Bacteria 'Invest' Wisely To Survive Uncertainty
- Naked Mole Rats May Hold Clues to Stroke
- Glimpse at Earth's Crust Deep Below the Ocean
- Amphibians as Environmental Omen Disputed
- Black Hole Zaps Galaxy Into Existence?
- Birth Control Pill for Men?
- Europe Plunged Into Ice Age Within Months
More Science Headlines
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5 pm EST Edition
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5 pm EST
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Will Copper Keep Us Safe from the Superbugs?
December 1, 2009 — New research suggests that copper might have a role in the fight against health care-associated ... > full story -
Western Diets Turn on Fat Genes: Energy-Dense Foods May Activate Genes That Ultimately Make Us Obese
December 1, 2009 — Those extra helpings of gravy and dessert at the holiday table are even less of a help to your waistline than previously thought. These foods hit you with a double-whammy as the already difficult ... > full story -
Glucose Intolerance in Pregnancy Associated With Postpartum Cardiovascular Risk
December 1, 2009 — Women who have gestational glucose intolerance (a condition less severe than gestational diabetes) exhibit multiple cardiovascular risk factors as early as three months after birth, according to a ... > full story -
Blushing Dusty Nebula
December 1, 2009 — A recent NASA/ESA Hubble Space Telescope image of part of NGC 7023, or the Iris Nebula, highlights a perfect dust laboratory in the ... > full story -
Believers' Inferences About God's Beliefs Are Uniquely Egocentric
December 1, 2009 — Religious people tend to use their own beliefs as a guide in thinking about what God believes, but are less constrained when reasoning about other people's beliefs, according to a new ... > full story
2 pm EST
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Heavy Metal Paradox Could Point Toward New Therapy for Lou Gehrig's Disease
December 1, 2009 — New discoveries have been made about how an elevated level of lead, which is a neurotoxic heavy metal, can slow the progression of amyotrophic lateral sclerosis, or Lou Gehrig's disease -- findings ... > full story -
New Source Discovered for Generation of Nerve Cells in Brain
December 1, 2009 — Scientists have made a significant advance in understanding regeneration processes in the brain. The researchers discovered progenitor cells which can form new glutamatergic neurons following injury ... > full story -
New Study Released on World AIDS Day Measures HIV Anti-Retroviral Regimens' Safety and Efficacy
December 1, 2009 — A study released on World AIDS Day reports that viral failure, the point at which medication can no longer suppress the HIV infection, was twice as likely and happened sooner among patients ... > full story -
First Metallic Nanoparticles Resistant to Extreme Heat
December 1, 2009 — Scientists overcame a major hurdle plaguing the development of nanomaterials such as those that could lead to more efficient catalysts used to produce hydrogen and render car exhaust less toxic. The ... > full story -
Homicide Rates Linked to Trust in Government, Sense of Belonging, Study Suggests
December 1, 2009 — When Americans begin routinely complaining about how they hate their government and don't trust their leaders, it may be time to look warily at the homicide rate. A historian tried to make sense of ... > full story
11 am EST
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Scientists Create Mouse With Key Features of HIV Infection Without Being Infected With HIV
December 1, 2009 — A major obstacle to HIV research is the virus's exquisite specialization for its human host -- meaning that scientists' traditional tools, like the humble lab mouse, can deliver only limited ... > full story -
Brain Scan Study Shows Cocaine Abusers Can Control Cravings
December 1, 2009 — A new brain-imaging study shows that active cocaine abusers can suppress drug craving, suggesting new ways to help them quit and avoid ... > full story -
Heartburn
Gastrointestinal Problems
Today's Healthcare
Diseases and Conditions
Alternative Medicine
Chronic IllnessSurgeons Offering New Procedure for Acid Reflux, GERD
December 1, 2009 — Surgeons are now offering patients an incisionless alternative to laparoscopic and traditional surgery for treatment of acid reflux or ... > full story -
There Are Lasers, and Then There Are Compact, Multibeam, Multi-Wavelength Lasers
December 1, 2009 — Scientists have demonstrated compact, multibeam, and multi-wavelength lasers emitting in the invisible part of the light spectrum (infrared). By contrast, typical lasers emit a single light beam of a ... > full story -
Today's Healthcare
Diseases and Conditions
Personalized Medicine
Health Policy
Pain Control
Multiple Sclerosis ResearchPatients Say 'No Thanks' to Risky Medical Treatments
December 1, 2009 — A recent study suggests that increasing patient responsibility for making medical decisions may decrease their willingness to accept risky treatment ... > full story
8 am EST
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Stroke and Heart Disease Trigger Revealed
December 1, 2009 — Scientists have identified the trigger that leads to the arteries becoming damaged in the disease atherosclerosis, which causes heart attacks and strokes. The authors of the study say their findings ... > full story -
Hydrogen-Powered Fuel Cell Unmanned Air Vehicle Sets 26-Hour Flight Endurance Record
December 1, 2009 — The Naval Research Laboratory's Ion Tiger, a hydrogen-powered fuel cell unmanned air vehicle, has flown 26 hours and 1 minute carrying a 5-pound payload, setting another unofficial flight endurance ... > full story -
Probiotic Found to Be Effective Treatment for Colitis in Mice
December 1, 2009 — The probiotic, Bacillus polyfermenticus, can help mice recover from colitis. Mice treated with B.P. during the non-inflammatory period of the disease had reduced rectal bleeding, their tissues were ... > full story -
Evolutionary Arms Race Between Bacteria and Their Viruses in Soil
December 1, 2009 — Viruses of soil bacteria (phages) evolve to improve their ability to infect the bacterial hosts that surround them. This is shown in a new study. Phages appear to be better able to infect bacteria ... > full story -
Beverage Can Stay-Tabs Pose Swallowing Risk
December 1, 2009 — Three decades ago, a study revealed that beverage can pull-tabs were being swallowed by children, prompting a switch by US manufacturers to stay-tabs. But in a new study, researchers found that the ... > full story
5 am EST
-
CPR Is Successful Without Mouth-to-Mouth, but Not Without Oxygen
December 1, 2009 — People can survive cardiac arrest if they receive only chest compressions during attempts to revive them -- as advised by the current American Heart Association guidelines. But they cannot survive ... > full story -
It Takes Two to Infect: Structural Biologists Shed Light on Mechanism of Invasion Protein
December 1, 2009 — Bacteria are quite creative when infecting the human organism. They invade cells, migrate through the body, avoid an immune response and misuse processes of the host cell for their own purposes. ... > full story -
Muscle 'Synergies' May Be Key to Stroke Treatment
December 1, 2009 — Researchers have shown that motor impairments in stroke patients can be understood as impairments in specific combinations of muscle activity, known as ... > full story -
Action Recommended for Indoor Radon Below Current Guidelines
December 1, 2009 — With radon-caused lung cancer deaths averaging 20,000 per year, the Health Physics Society asks the public to consider taking action even at measured levels below current ... > full story -
Is It Right for Drug Companies to Carry out Their Own Clinical Trials?
December 1, 2009 — In a new article, two experts debate whether the conflict of interest is unacceptable when drug companies carry out clinical trials on their own medicines. Their views come as new guidance on the ... > full story
2 am EST
-
New Light Shed on Epilepsy
December 1, 2009 — Neuroscientists move a step closer to finding new treatments for ... > full story -
Protein Engineering Advancing Alzheimer’s Research
December 1, 2009 — No one has yet found a cure or a way to prevent people from developing Alzheimer's disease. Researchers are breaking new ground in biotechnology to find new tools that can help provide new solutions. ... > full story -
Exercise Therapy Best for Knee Pain, Study Finds
December 1, 2009 — For patients with severe knee pain, supervised exercise therapy is more effective at reducing pain and improving function than usual care, a study ... > full story -
Global Warming
Climate
Environmental Policies
Environmental Issues
Environmental Policy
World DevelopmentTraditional Indigenous Fire Management Techniques Deployed Against Climate Change
December 1, 2009 — A landmark Australian project that mitigates the extent and severity of natural savannah blazes by deploying traditional Indigenous fire management techniques is being hailed as a model with vast ... > full story -
Getting on 'the GABA Receptor Shuttle' to Treat Anxiety Disorders
December 1, 2009 — There are increasingly precise molecular insights into ways that stress exposure leads to fear and through which fear extinction resolves these fear states. Extinction is generally regarded as new ... > full story
11 pm EST
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Two-Pronged Protein Attack Could Be Source of SARS Virulence
November 30, 2009 — Researchers have uncovered what they believe could be the major factor contributing to the SARS virus' virulence: the pathogen's use of a single viral protein to weaken host cell defenses by ... > full story -
Molecular Architecture of Treponema Pallidum, Bacterium That Causes Syphilis
November 30, 2009 — A team of scientists has used state-of-the-art technology to elucidate the molecular architecture of Treponema pallidum, the bacterium which causes syphilis. The previously unknown detailed structure ... > full story -
New Molecule Implicated in Diabetes-Associated Blindness
November 30, 2009 — Scientists have demonstrated that the Wnt signaling pathway plays a role in diabetic ... > full story -
Climate Change in Kuwait Bay: Higher Temperatures Having Profound Effects
November 30, 2009 — Since 1985, seawater temperature in Kuwait Bay, northern Persian Gulf, has increased on average 0.6 degrees Celsius per decade. This is about three times faster than the global average rate reported ... > full story -
PTSD Less Common Than Depression and Alcohol Misuse Amongst UK Troops
November 30, 2009 — Common mental disorders, such as depression and alcohol misuse, are the top psychological problems amongst UK troops post-deployment and not post traumatic stress disorder as is widely believed. A ... > full story
8 pm EST
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New Stem Cell Technology Provides Rapid Healing from Complicated Bone Fractures
November 30, 2009 — A novel technology involving use of stem cells has been applied to provide better and rapid healing for patients suffering from complicated bone ... > full story -
Immune Cells That Prevent Development of Asthma Identified
November 30, 2009 — Asthma is inhibited by regulatory macrophages, a cell population never previously ... > full story -
Quarter of a Million Children in England at Risk of Skin Cancer from Sunbeds
November 30, 2009 — An estimated quarter of a million 11- to 17-year-olds in England are being put at increased risk of developing malignant melanoma by using sunbeds, warn ... > full story -
Climate Studies to Benefit from 12 Years of Satellite Aerosol Data
November 30, 2009 — Aerosols, very small particles suspended in the air, play an important role in the global climate balance and in regulating climate change. They are one of the greatest sources of uncertainty in ... > full story -
Today's Healthcare
Workplace Health
Sleep Disorder Research
Cholesterol
Insomnia Research
Diseases and ConditionsHospital Noise Initiative Reduces Average Peak Decibel Levels by 20 Percent
November 30, 2009 — Getting medical staff to adopt some simple measures on three hospital wards reduced noise levels by just under 20 percent -- from 96.48 decibels to 77.52 decibels. Hospitals can be very noisy places. ... > full story
- View all the latest headlines and summaries, or browse by topic below:
Health & Biomedical Sciences
Health & Medicine
Heavy Metal Paradox Could Point Toward New Therapy for Lou Gehrig's Disease
New discoveries have been made about how an elevated level of lead, which is a neurotoxic heavy metal, can slow the progression of amyotrophic lateral sclerosis, or Lou Gehrig's disease -- findings ... > full story
Mind & Brain
New Source Discovered for Generation of Nerve Cells in Brain
Scientists have made a significant advance in understanding regeneration processes in the brain. The researchers discovered progenitor cells which can form new glutamatergic neurons following injury ... > full story
Living Well
Action Recommended for Indoor Radon Below Current Guidelines
With radon-caused lung cancer deaths averaging 20,000 per year, the Health Physics Society asks the public to consider taking action even at measured levels below current ... > full story
Biological & Earth Sciences
Plants & Animals
Scientists Create Mouse With Key Features of HIV Infection Without Being Infected With HIV
A major obstacle to HIV research is the virus's exquisite specialization for its human host -- meaning that scientists' traditional tools, like the humble lab mouse, can deliver only limited ... > full story
Earth & Climate
Evolutionary Arms Race Between Bacteria and Their Viruses in Soil
Viruses of soil bacteria (phages) evolve to improve their ability to infect the bacterial hosts that surround them. This is shown in a new study. Phages appear to be better able to infect bacteria ... > full story
Fossils & Ruins
New Fossil Plant Discovery Links Patagonia to New Guinea in a Warmer Past
Fossil plants provide clues as to what our planet looked like millions of years ago. Identifying fossil plants can be tricky, however, when plant organs fail to be preserved. Researchers recently ... > full story
- Greening of Sahara Desert Triggered Early Human Migrations out of Africa
- Study Pits Man Versus Machine in Piecing Together 425-Million-Year-Old Jigsaw
- Mass Extinction: Why Did Half of N. America's Large Mammals Disappear 40,000 to 10,000 Years Ago?
- Ecological Speciation by Sexual Selection on Good Genes
- more stories
Physical & Applied Sciences
Space & Time
Climate Studies to Benefit from 12 Years of Satellite Aerosol Data
Aerosols, very small particles suspended in the air, play an important role in the global climate balance and in regulating climate change. They are one of the greatest sources of uncertainty in ... > full story
Matter & Energy
First Metallic Nanoparticles Resistant to Extreme Heat
Scientists overcame a major hurdle plaguing the development of nanomaterials such as those that could lead to more efficient catalysts used to produce hydrogen and render car exhaust less toxic. The ... > full story
- There Are Lasers, and Then There Are Compact, Multibeam, Multi-Wavelength Lasers
- Hydrogen-Powered Fuel Cell Unmanned Air Vehicle Sets 26-Hour Flight Endurance Record
- Protein Engineering Advancing Alzheimer’s Research
- Molecular Architecture of Treponema Pallidum, Bacterium That Causes Syphilis
- more stories
Computers & Math
Smart Phones Allow Quick Diagnosis of Acute Appendicitis
Radiologists can accurately diagnose acute appendicitis from a remote location with the use of a hand-held device or mobile phone equipped with special software, according to a new ... > full story
