ScienceDaily: Latest Science News |
| Pain Hurts More If Person Hurting You Means It Posted: 20 Dec 2008 05:00 PM PST Psychologists at Harvard University have found that pain hurts more when we think that someone intended to cause hurt. Intentional pain also seems to have a fresh sting every time, whereas we get used to unintentional pain.  |
| Inflamed Gums Linked To Heart Disease Posted: 20 Dec 2008 05:00 PM PST The next person who reminds you to floss might be your cardiologist instead of your dentist. Scientists have known for some time that a protein associated with inflammation is elevated in people at risk for heart disease. But where's the inflammation coming from? A new research study shows that infected gums may be one place.  |
| Ancient Soil Replenishment Technique Helps In Battle Against Global Warming Posted: 20 Dec 2008 05:00 PM PST Former inhabitants of the Amazon Basin enriched their fields with charred organic materials-biochar-and transformed one of the earth's most infertile soils into one of the most productive. These early conservationists disappeared 500 years ago, but centuries later, their soil is still rich in organic matter and nutrients. Now, scientists, environmental groups and policymakers forging the next world climate agreement see biochar not only as an important tool for replenishing soils, but as a powerful tool for combating global warming.  |
| Shared Survival Mechanism Explains Why 'Good' Nerve Cells Last And 'Bad' Cancer Cells Flourish Posted: 20 Dec 2008 05:00 PM PST Cancer cells and nervous system neurons may not look or act alike, but both use strikingly similar ways to survive, according to new research.  |
| Scans Show Immune Cells Intercepting Parasites Posted: 20 Dec 2008 05:00 PM PST Researchers may have identified one of the body's earliest responses to a group of parasites that causes illness in developing nations and are now infecting US soldiers on patrol in Iraq and Afghanistan.  |
| Whispering Bats Are Shrieking 100 Times Louder Than Previously Thought Posted: 20 Dec 2008 05:00 PM PST Some echo-locating bats seem to be really quiet, appearing to make echo-locating calls that are no louder than 70 decibels. But no one had successfully recorded their volume under natural conditions, until now. When researchers recorded whispering bats they found that some of them are shrieking 100 times louder than thought.  |
| LEDs And Smart Lighting Could Save Trillions Of Dollars, Spark Global Innovation Posted: 20 Dec 2008 11:00 AM PST A "revolution" in the way we illuminate our world is imminent. Innovations in photonics and solid state lighting will lead to trillions of dollars in cost savings, along with a massive reduction in the amount of energy required to light homes and businesses around the globe, researchers forecast.  |
| Benefits Of Breastfeeding Outweigh Risk Of Infant Exposure To Environmental Chemicals In Breastmilk Posted: 20 Dec 2008 11:00 AM PST A study comparing breastfed and formula fed infants across time showed that the known beneficial effects of breastfeeding are greater than the potential risks associated with infant exposure to chemicals such as dioxins that may be present in breastmilk, according to a new report published in Breastfeeding Medicine.  |
| New Model Explains Movements Of The Moon Posted: 20 Dec 2008 11:00 AM PST Scientists are developing a mathematical formula to study the rotation of the moon, taking into account its structure, which comprises a solid external layer and a fluid internal core. Their work is part of an international study, which has come up with an improved theoretical model about the orbital and rotational dynamics of the Earth and its satellite, and which the scientific community will be able to use to obtain more precise measurements in order to aid future NASA missions to the moon.  |
| Cancer Treatments Redefined To Reduce Potential Nerve Damage Posted: 20 Dec 2008 11:00 AM PST While radiation treatments deliver precise doses of high-energy X-rays to stop cancer cells from spreading or to shrink tumors, oncologists have become increasingly concerned about inadvertent exposures during head and neck cancer treatments to nerves responsible for upper body mobility.  |
| Posted: 20 Dec 2008 11:00 AM PST New York City's most famous beaver, José, has come home for the holidays! After a year-long hiatus, José -- the first wild beaver to return to New York in at least two centuries -- is back at the zoo and has even cut down his own Christmas tree, which he is now using to construct a new lodge on the Bronx River.  |
| Possible Genetic Causes Of Borderline Personality Disorder Identified Posted: 20 Dec 2008 11:00 AM PST Scientists have found that genetic material on chromosome nine was linked to BPD features, a disorder characterized by pervasive instability in moods, interpersonal relationships, self-image and behavior, and can lead to suicidal behavior, substance abuse and failed relationships.  |
| Breathing Cycles In Earth's Upper Atmosphere Tied To Solar Wind Disturbances Posted: 20 Dec 2008 05:00 AM PST A new study shows the periodic "breathing" of Earth's upper atmosphere that has long puzzled scientists is due in part to cyclic solar wind disturbances, a finding that should help engineers track satellites more accurately and improve forecasts for electronic communication disruptions.  |
| Male Circumcision May Decrease Risk Of HPV Infection And Cervical Cancer Posted: 20 Dec 2008 05:00 AM PST Two new studies suggest that male circumcision may assist in the prevention of human papillomavirus infection, particularly infection with the high-risk subtypes associated with cervical, penile, and other cancers.  |
| Posted: 20 Dec 2008 05:00 AM PST A new study led by Spanish researchers has revealed that exposure to certain substances may increase the risk of cancer of the esophagus. The hotel and restaurant trades, animal handling, mining and carpentry are some of the professions posing the highest risk.  |
| Popular Hypothesis Concerning Emergence Of Multiple Sclerosis Contested Posted: 20 Dec 2008 05:00 AM PST During an autoimmune disease, the endogenous defence system (the immune system) loses the ability to distinguish between "self" and "foreign." As a consequence, the immune system directs its defence against itself, with fatal consequences. In the case of multiple sclerosis, a chronic, inflammatory autoimmune disease, the immune system attacks the protective layer encapsulating the nerve fibres: This protective layer formed by myelin works like insulation for electrical cables. If the insulation is damaged, the nerves can no longer transmit messages effectively.  |
| How Genes And Proteins Interact To Build Life's Dynamic Architecture Posted: 20 Dec 2008 05:00 AM PST While life on Earth didn't originate from a blueprint, researchers are avidly working to uncover the basic architecture of living things. One researcher has now developed novel technologies that have enabled him to examine how proteins interact within cells.  |
| Aging Brains Allow Negative Memories To Fade Posted: 20 Dec 2008 05:00 AM PST It turns out there's a scientific reason why older people tend to see the past through rose-coloured glasses. Medical researchers have identified brain activity that causes older adults to remember fewer negative events than their younger counterparts. These neuroscientists have discovered that older people use their brains differently than younger people when it comes to storing memories, particularly those associated with negative emotions.  |
| Earth's Original Ancestor Was 'LUCA' Posted: 19 Dec 2008 05:00 PM PST Evolutionary geneticists have published a ground-breaking study that characterizes the common ancestor of all life on earth, LUCA (last universal common ancestor). Their findings show that the 3.8-billion-year-old organism was not the creature usually imagined.  |
| Study Of Placenta Unexpectedly Leads To Cancer Gene Posted: 19 Dec 2008 05:00 PM PST Scientists have discovered a gene mutation that impairs the placenta and also is influential in cancer development.  |
| Gut Instinct: Salmonella Bacteria's Molecular Tactics To Cause Illness Posted: 19 Dec 2008 05:00 PM PST Hundreds of trillions of bacteria make their home in the vertebrate gut. Though many of these microbes perform helpful duties for their host, others -- the pathogens -- are unwelcome visitors, causing disease. New research unveils a key survival circuit, which activates a signaling cascade, switching on or off a suite of genes necessary to circumvent the body's multiple defense mechanisms and cause illness.  |
| Molecular Therapy For Spinal Muscular Atrophy Closer To Clinical Use Posted: 19 Dec 2008 05:00 PM PST Spinal muscular atrophy, a neurodegenerative disorder that causes the weakening of muscles, is the leading cause of infant death and occurs in 1 in 6,000 live births. While trans-splicing (a form of molecular therapy) has had impressive results as a treatment for spinal muscular atrophy in cell-based models of disease, scientists have been unable to translate the therapy to the human body. Researchers have now developed a strategy that will enhance trans-splicing activity and bring it closer to being used in the clinical setting.  |
| Posted: 19 Dec 2008 05:00 PM PST Scientists have figured out why a respiratory syncytial virus vaccine used in 1966 to inoculate children against the infection instead caused severe respiratory disease and effectively stopped efforts to make a better one. The findings could restart work on effective killed-virus vaccines not only for RSV but other respiratory viruses, researchers say.  |
| 'Dirty War Index': New Tool Identifies Rates Of Prohibited Or Undesirable War Outcomes Posted: 19 Dec 2008 05:00 PM PST Researchers have created a new tool called the "Dirty War Index" based on the laws of war, a tool which identifies rates of prohibited or highly undesirable ("dirty") war outcomes, such as torture, child injury and civilian death.  |
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