ScienceDaily: Latest Science News

---

• Geologists Point To Outer Space As Source Of The Earth's Mineral Riches
• Small Mechanical Forces Have Big Impact On Embryonic Stem Cells
• Smallest Electronic Component: Researchers Create Molecular Diode
• Exercise Can Aid Recovery After Brain Radiation
• Chemists Discover Recipe To Design A Better Type Of Fuel Cell
• How To Win By Concession And Avoid Unproductive Conflict
• Time In A Bottle: Scientists Watch Evolution Unfold
• Cellular Mechanism That Causes Lupus-like Symptoms In Mice Identified
• Physicists Develop Multifunctional Storage Device For Light
• New Chromosomal Abnormality Identified In Leukemia Associated With Down Syndrome
• Identifying ID Theft And Fraud
• New Understanding Of Why Seizures Occur With Alcohol Withdrawal
• Major Step In Making Better Stem Cells From Adult Tissue
• Migraine Sufferers More Prone To Hangover Headache
• Math Modeling Predicts Unknown Biological Mechanism Of Regulation
• New Mathematical Model More Accurately Diagnoses Acute Heart Failure In Emergency Rooms
• Climate Change Threatens Rice Production
• Cochlear Implants Reduce Delay Suffered By Deaf Children In Language Acquisition, Study Shows
• How The Moon Produces Its Own Water
• Drug Could Provide First Treatment For Scleroderma
• Culprit Compounds That Block Beans' Healthful Iron Probed
• Process That Determines Fate Of White Blood Cells Uncovered
• Illumination-Aware Imaging
• Smoking Bans Reduce Risk Of Heart Attacks Associated With Secondhand Smoke
• In Shaping Our Immune Systems, Some 'Friendly' Bacteria May Play Inordinate Role
• Maternal HIV-1 Treatment Protects Against Transmission To Newborns
• New Insights Into Marine Ecosystems And Fisheries Production
• Heart Test Found Safe For Pre-transplant Kidney Patients
• All That Glitters Is Now Gold
• Small Classes Give Extra Boost To Low-achieving Students

Geologists Point To Outer Space As Source Of The Earth's Mineral Riches Posted: 19 Oct 2009 11:00 AM PDT According to a new study by geologists, the wealth of some minerals that lie in the rock beneath the Earth's surface may be extraterrestrial in origin.

Small Mechanical Forces Have Big Impact On Embryonic Stem Cells Posted: 19 Oct 2009 11:00 AM PDT Applying a small mechanical force to embryonic stem cells could be a new way of coaxing them into a specific direction of differentiation, researchers report. Applications for force-directed cell differentiation include therapeutic cloning and regenerative medicine.

Smallest Electronic Component: Researchers Create Molecular Diode Posted: 19 Oct 2009 11:00 AM PDT Researchers have found a way to make a key electronic component on a phenomenally tiny scale -- a single-molecule diode.

Exercise Can Aid Recovery After Brain Radiation Posted: 19 Oct 2009 11:00 AM PDT Exercise is a key factor in improving both memory and mood after whole-brain radiation treatments in rodents, according to new research.

Chemists Discover Recipe To Design A Better Type Of Fuel Cell Posted: 19 Oct 2009 11:00 AM PDT Chemists have discovered a new material that allows a PEM fuel cell, known as a polymer electrolyte membrane fuel cell, to work at a higher temperature. This discovery is extremely important in terms of increasing the efficiency and decreasing the cost of PEM fuel cells.

How To Win By Concession And Avoid Unproductive Conflict Posted: 19 Oct 2009 11:00 AM PDT A new study explores the question: "If we can make a deal, why fight?" The authors conclude that a combination of common knowledge and a common rate of time preference allow a potential loser to use small concessions to successfully appease an expected winner.

Time In A Bottle: Scientists Watch Evolution Unfold Posted: 19 Oct 2009 08:00 AM PDT A 21-year experiment that distills the essence of evolution in laboratory flasks not only demonstrates natural selection at work, but could lead to biotechnology and medical research advances, researchers say.

Cellular Mechanism That Causes Lupus-like Symptoms In Mice Identified Posted: 19 Oct 2009 08:00 AM PDT Macrophages, the scavenger cells of the body's immune system, are responsible for disposing of dying cells. Researchers have identified one pathway in this important process in mice that, if disrupted, causes a lupus-like autoimmune disease.

Physicists Develop Multifunctional Storage Device For Light Posted: 19 Oct 2009 08:00 AM PDT Light can be confined to a very small space using a microscopic container surrounded by reflective walls. The light can then be stored by continuous reflections and cannot escape. Physicists in Germany have now for the first time realized a microresonator that combines all the desired properties -- long storage time, small volume, and tunability to arbitrary optical frequencies, in a single monolithic device.

New Chromosomal Abnormality Identified In Leukemia Associated With Down Syndrome Posted: 19 Oct 2009 08:00 AM PDT Researchers identified a new chromosomal abnormality in acute lymphoblastic leukemia that appears to work in concert with another mutation to give rise to cancer. This latest anomaly is particularly common in children with Down syndrome.

Identifying ID Theft And Fraud Posted: 19 Oct 2009 08:00 AM PDT If the wife of FBI boss Robert Mueller has warned him not to use internet banking because of the threat of online fraud, then what hope is there for the average Joe? The results of research suggests that more of us are no longer entrusting our finances to virtual accounts.

New Understanding Of Why Seizures Occur With Alcohol Withdrawal Posted: 19 Oct 2009 08:00 AM PDT Epileptic seizures are the most dramatic and prominent aspect of the "alcohol withdrawal syndrome" that occurs when a person abruptly stops a long-term or chronic drinking habit. Researchers have shown that the flow of calcium ions into brain cells via voltage-gated calcium channels plays an important role in the generation of alcohol withdrawal seizures, because blocking this flow suppresses these seizures. But do the changes in calcium currents contribute to alcohol withdrawal seizures or are they a consequence of the seizures?

Major Step In Making Better Stem Cells From Adult Tissue Posted: 19 Oct 2009 05:00 AM PDT Scientists have developed a method that dramatically improves the efficiency of creating stem cells from human adult tissue, without the use of embryonic cells. The research makes great strides in addressing a major practical challenge in the development of stem-cell-based medicine.

Migraine Sufferers More Prone To Hangover Headache Posted: 19 Oct 2009 05:00 AM PDT Migraine sufferers, beware. You may be more prone to an alcohol-induced headache after a night of drinking, according to researchers.

Math Modeling Predicts Unknown Biological Mechanism Of Regulation Posted: 19 Oct 2009 05:00 AM PDT A team of scientists have demonstrated -- for the first time -- that mathematical models created from data obtained by DNA microarrays, can be used to correctly predict previously unknown cellular mechanisms. This brings biologists a step closer to one day being able to understand and control the inner workings of the cell as readily as NASA engineers plot the trajectories of spacecraft today.

New Mathematical Model More Accurately Diagnoses Acute Heart Failure In Emergency Rooms Posted: 19 Oct 2009 05:00 AM PDT Researchers have developed the first mathematical model in cardiology and emergency medicine to more quickly and reliably diagnose acute heart failure in emergency room patients. Research findings have been shown to help physicians diagnose AHF with greater accuracy.

Climate Change Threatens Rice Production Posted: 19 Oct 2009 05:00 AM PDT Once-in-a-lifetime floods in the Philippines, India's delayed monsoon, and extensive drought in Australia are taking their toll on this year's rice crops, demonstrating the vulnerability of rice to extreme weather.

Cochlear Implants Reduce Delay Suffered By Deaf Children In Language Acquisition, Study Shows Posted: 19 Oct 2009 05:00 AM PDT Researchers in Spain have observed in this first year of the study that, three months after receiving a cochlear implant all the children showed improvement in their perception and ability to detect sounds around them. Children quickly learn that the implant is a device that allows them to hear and if it is deactivated they protest or make gestures asking that it be switched back on.

How The Moon Produces Its Own Water Posted: 19 Oct 2009 02:00 AM PDT The Moon is a big sponge that absorbs electrically charged particles given out by the Sun. These particles interact with the oxygen present in some dust grains on the lunar surface, producing water. This discovery, made by the ESA-ISRO instrument SARA onboard the Indian Chandrayaan-1 lunar orbiter, confirms how water is likely being created on the lunar surface.

Drug Could Provide First Treatment For Scleroderma Posted: 19 Oct 2009 02:00 AM PDT Investigators have identified a drug that is currently approved to treat certain types of cancer, Gleevec, that could provide the first treatment for scleroderma, a chronic connective tissue disease for which a treatment has remained elusive.

Culprit Compounds That Block Beans' Healthful Iron Probed Posted: 19 Oct 2009 02:00 AM PDT Familiar beans like reds, whites and pintos are rich in iron, a nutrient essential for our health. But not all of the little legumes' treasure trove of iron is bioaccessible --- that is, available for our bodies to readily absorb.

Process That Determines Fate Of White Blood Cells Uncovered Posted: 19 Oct 2009 02:00 AM PDT Researchers describe how a protein called Id3 coaxes blood progenitor cells in the thymus into becoming gamma-delta T cells. Gamma-delta T cells represent only 5 percent of T cells, yet researchers believe that they have a remarkable effect on human health, possessing functions of both adaptive and innate immunity.

Illumination-Aware Imaging Posted: 19 Oct 2009 02:00 AM PDT Conventional imaging systems incorporate a light source for illuminating an object and a separate sensing device for recording the light rays scattered by the object. By using lenses and software, the recorded information can be turned into a proper image. Human vision is an ordinary process: the use of two eyes (and a powerful brain that processes visual information) provides human observers with a sense of depth perception. But how does a video camera attached to a robot "see" in three dimensions?

Smoking Bans Reduce Risk Of Heart Attacks Associated With Secondhand Smoke Posted: 19 Oct 2009 02:00 AM PDT Smoking bans are effective at reducing the risk of heart attacks and heart disease associated with exposure to secondhand smoke, says a new report. The report also confirms there is sufficient evidence that breathing secondhand smoke boosts nonsmokers' risk for heart problems, adding that indirect evidence indicating that even relatively brief exposures could lead to a heart attack is compelling.

In Shaping Our Immune Systems, Some 'Friendly' Bacteria May Play Inordinate Role Posted: 18 Oct 2009 11:00 PM PDT Out of the trillions of "friendly" bacteria -- representing hundreds of species -- that make our intestines their home, new evidence in mice suggests that it may be a very select few that shape our immune responses.

Maternal HIV-1 Treatment Protects Against Transmission To Newborns Posted: 18 Oct 2009 11:00 PM PDT Mothers receiving highly active antiretroviral therapy to treat HIV-1 infection are less likely than untreated mothers to transmit the virus to their newborns through breastfeeding, according to a new study. The findings suggest HAART regimens should be initiated as early as possible in eligible mothers in areas with limited resources, such as Africa, where most infant HIV-1 infections occur, and breastfeeding is common.

New Insights Into Marine Ecosystems And Fisheries Production Posted: 18 Oct 2009 11:00 PM PDT NOAA and Norwegian researchers recently completed a comparative analysis of marine ecosystems in the North Atlantic and North Pacific to see what factors support fisheries production, leading to new insights that could improve fishery management plans and the ecosystems.

Heart Test Found Safe For Pre-transplant Kidney Patients Posted: 18 Oct 2009 11:00 PM PDT A screening test that measures whether a patient's heart is healthy enough for a kidney transplant is not as dangerous as once thought, according to a new study. The findings indicate that the test, called coronary angiography, does not cause a decline in kidney function for patients with advanced chronic kidney disease and can help determine when to schedule a patient for transplantation.

All That Glitters Is Now Gold Posted: 18 Oct 2009 11:00 PM PDT Incandescent bulbs are a poor choice for other reasons, however. They are notoriously hot and can alter the temperature and humidity in display cases, potentially damaging priceless museum pieces. Now researchers have designed an alternative, energy efficient and non-heating light source for gold objects.

Small Classes Give Extra Boost To Low-achieving Students Posted: 18 Oct 2009 11:00 PM PDT Small classes in early grades improve test scores in later grades for students of all achievement levels, but low achievers get an extra boost.

You are subscribed to email updates from ScienceDaily: Latest Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610