ScienceDaily: Latest Science News

---

• BPA, Chemical Used To Make Plastics, Found To Leach From Polycarbonate Drinking Bottles Into Humans
• Fish Really Is 'Brain Food': Vitamin D May Lessen Age-related Cognitive Decline
• Police Radar For Measuring Speeding Cars Improved
• Preventative Treatment Against Malaria May be Less Effective in Malnourished Children
• DNA Deletion Makes Swedish Chlamydia 'Invisible'
• Risk Of Facial Fractures In Motor Vehicle Crashes Decreasing
• Mars: Windy, Wet And Wild: Victoria Crater Unveils More Of Mars' Geologic Past
• Anti-inflammatory Effect Of 'Rotten Eggs' Gas
• Wings That Waggle Could Cut Aircraft Emissions By 20%
• Glutamine Supplements Show Promise In Treating Stomach Ulcers
• How The Body Differentiates Between A Burn And A Cut
• Higher Prevalence Of Early Onset Of Menstrual Periods Among Survivors Of Childhood Sexual Abuse
• Giant Balloon Flying High Over Atlantic To Catch Cosmic Rays
• Twins Born After Fertility Treatment Have Higher Risk Of Problems, Study Finds
• Biologists Call For Network Of Protected Rivers
• Triple Drug Combination Is Promising Option To Treat Metastatic HER2+ Breast Cancer
• Biofilms As River Sentinels
• Early Identification Of Dementia Increasingly Difficult
• 'Missing Link': Revealing Fast-spinning Pulsar Mysteries
• Bone Marrow Cell Therapy May Be Beneficial For Patients With Ischemic Heart Disease
• Earth’s Climate And Ocean Acidification History
• Pregnant Women With Mildly Abnormal Blood Sugar Levels At Higher Risk Of Developing Type 2 Diabetes
• Beneficial Plant 'Spillover' Effect Seen From Landscape Corridors
• Safe For Passengers With Lung Disease To Travel By Air, Study Suggests
• Bird Songs Change With The Landscape
• New Strategies For Cell Therapy To Regenerate Damaged Heart
• How An Enzyme Tells Stem Cells Which Way To Divide
• Obese Moms, Asthmatic Kids
• Swine Flu And Other New Infectious Diseases -- What's The Risk?
• Tying Education To Future Goals May Boost Grades More Than Helping With Homework
• Marine Mammals' Brains Exposed To Hazardous Cocktail Of Pesticides Including DDT, PCBs, Brominated Flame Retardants
• Reassuring Evidence On The Outcome Of Children Born After Embryo Freezing
• Genital Stimulation Opens Door For Cryptic Female Choice In Tsetse Flies
• Genes That Influence Start Of Menstruation Identified For First Time
• Fast, Affordable Tool For Finding Gene 'On-off' Switches
• Children Whose Mothers Smoked During Pregnancy And Early Childhood More Likely To Smoke As Adults
• Why Do People With Down Syndrome Have Less Cancer? Research In Mice And Human Stem Cells Suggests New Therapeutic Targets
• Aerosolized Nanoparticles Show Promise For Delivering Antibiotic Treatment
• From A Queen Song To A Better Music Search Engine
• Early Exposure To Tobacco Smoke May Lead To Early Emphysema Later
• Historical Anecdote Of Jordan's Red Soils May Offer New Antibiotic
• Sick Of The Same Old Thing? Researcher Finds Satiation Solution

BPA, Chemical Used To Make Plastics, Found To Leach From Polycarbonate Drinking Bottles Into Humans Posted: 22 May 2009 08:00 AM PDT Participants who drank for a week from polycarbonate bottles -- the popular, hard-plastic drinking bottles and baby bottles -- showed a two-thirds increase in their urine of the chemical bisphenol A, according to a new study. Exposure to BPA may have harmful health effects.

Fish Really Is 'Brain Food': Vitamin D May Lessen Age-related Cognitive Decline Posted: 22 May 2009 08:00 AM PDT Eating fish -- long considered 'brain food' -- may really be good for the old grey matter, as is a healthy dose of sunshine, new research suggests.

Police Radar For Measuring Speeding Cars Improved Posted: 22 May 2009 08:00 AM PDT Two speed measuring devices used by the law enforcement community -- the down-the-road radar with which officers enforce automobile speed limits and the ballistic chronograph which tracks the velocity of bullets during testing of protective equipment -- soon should be more useful tools thanks to new research.

Preventative Treatment Against Malaria May be Less Effective in Malnourished Children Posted: 22 May 2009 08:00 AM PDT The effectiveness of an intermittent preventative treatment against malaria in infants across Africa may be inhibited by high incidences of malnutrition say researchers.

DNA Deletion Makes Swedish Chlamydia 'Invisible' Posted: 22 May 2009 08:00 AM PDT Scientists are aiming to improve the diagnosis of chlamydia, the most common cause of sexually transmitted infection globally. Researchers investigated a genetic deletion that matches the region targeted by the most widely used diagnostic tests, rendering them useless to detect infection by one strain of chlamydia, originating in Sweden. The team have identified regions that are more stable and suggest that these regions should be targeted by future diagnostic tests.

Risk Of Facial Fractures In Motor Vehicle Crashes Decreasing Posted: 22 May 2009 08:00 AM PDT Facial fractures from motor vehicle crashes appear to be decreasing, most likely due to design improvements in newer vehicles, according to a new article.

Mars: Windy, Wet And Wild: Victoria Crater Unveils More Of Mars' Geologic Past Posted: 22 May 2009 05:00 AM PDT After thoroughly investigating Victoria Crater on Mars for two years, the instruments aboard the Rover Opportunity reveal more evidence of our neighboring red planet's windy, wet and wild past.

Anti-inflammatory Effect Of 'Rotten Eggs' Gas Posted: 22 May 2009 05:00 AM PDT Researchers have synthesized a new molecule which releases hydrogen sulfide -- the gas that gives rotten eggs their characteristic smell and which has recently been found to be produced naturally in the body -- and discovered that it could in time lead to a range of new, safer and effective anti-inflammatory drugs for human use.

Wings That Waggle Could Cut Aircraft Emissions By 20% Posted: 22 May 2009 05:00 AM PDT Wings which redirect air to waggle sideways could cut airline fuel bills by 20% according to new research.

Glutamine Supplements Show Promise In Treating Stomach Ulcers Posted: 22 May 2009 05:00 AM PDT The amino acid glutamine, found in many foods as well as in dietary supplements, may prove beneficial in offsetting gastric damage caused by H. pylori infection.

How The Body Differentiates Between A Burn And A Cut Posted: 22 May 2009 05:00 AM PDT You can tell without looking whether you've been stuck by a pin or burnt by a match. But how? In research that overturns conventional wisdom, scientists have shown that this sensory discrimination begins in the skin at the very earliest stages of neuronal information processing, with different populations of sensory neurons -- called nociceptors -- responding to different kinds of painful stimuli.

Higher Prevalence Of Early Onset Of Menstrual Periods Among Survivors Of Childhood Sexual Abuse Posted: 22 May 2009 05:00 AM PDT African-American women who were younger at menarche, or the onset of their menstrual periods, were more likely to report a history of childhood sexual abuse, according to a new study. The results suggest that a history of sexual abuse may increase the risk of early menarche (i.e., onset of menstrual periods before age 12 years).

Giant Balloon Flying High Over Atlantic To Catch Cosmic Rays Posted: 22 May 2009 02:00 AM PDT A giant balloon, taller than a football field, is now flying at the edge of space to collect data on cosmic rays -- the most super-charged particles in the universe.

Twins Born After Fertility Treatment Have Higher Risk Of Problems, Study Finds Posted: 22 May 2009 02:00 AM PDT A new study finds that assisted reproductive technology twins are more likely to be admitted to neonatal intensive care and to be hospitalized in their first three years of life than spontaneously conceived twins.

Biologists Call For Network Of Protected Rivers Posted: 22 May 2009 02:00 AM PDT Scientists have used the Guadiana River basin, in which 92% of the species are under threat, as a reference point to measure the loss of aquatic biodiversity and its conservation value. A new study reveals that the state of fragmentation of Iberian river basins is "seriously endangering" the freshwater fish that inhabit them, and highlights the need to create new protected aquatic reserves.

Triple Drug Combination Is Promising Option To Treat Metastatic HER2+ Breast Cancer Posted: 22 May 2009 02:00 AM PDT Combining two chemotherapy drugs with trastuzumab to treat women who have metastatic HER2+ breast cancer may offer physicians another choice in their treatment options.

Biofilms As River Sentinels Posted: 22 May 2009 02:00 AM PDT Researchers in Lyon decided to use the reaction of a group of micro-organisms to the presence of toxic molecules in evaluating the ecological status of a river and thus develop bioindicators based not on species identification, but on their functions in the environment.

Early Identification Of Dementia Increasingly Difficult Posted: 22 May 2009 02:00 AM PDT If grandma seems to forget things, will she end up demented? These days, memory loss is one of the very few symptoms that may signal which 70-year-olds risk developing dementia.

'Missing Link': Revealing Fast-spinning Pulsar Mysteries Posted: 21 May 2009 11:00 PM PDT Changes observed in a unique-double-star system are giving astronomers a glimpse of what they believe is the mechanism for "spinning up" the superfast neutron stars known as millisecond pulsars.

Bone Marrow Cell Therapy May Be Beneficial For Patients With Ischemic Heart Disease Posted: 21 May 2009 11:00 PM PDT The injection of bone marrow cells into the heart of patients with chronic myocardial ischemia (reduced blood flow to some areas of the heart) was associated with modest improvements in blood flow and function of the left ventricle, according to a new study.

Earth’s Climate And Ocean Acidification History Posted: 21 May 2009 11:00 PM PDT A scientific research cruise following the palaeo-equator has uncovered nearly 53 million years of climate and ocean acidification history.

Pregnant Women With Mildly Abnormal Blood Sugar Levels At Higher Risk Of Developing Type 2 Diabetes Posted: 21 May 2009 11:00 PM PDT Gestational diabetes happens in more than three per cent of pregnancies in Ontario. Usually the condition resolves itself after delivery, but many studies have shown that these women are at a very high risk for developing "regular" type 2 diabetes later in life. New research has found that even women with mild abnormalities in their blood sugar during pregnancy, previously thought not to have any clinical significance, are 2.5 times more likely to develop type 2 diabetes compared to those who had completely normal glucose testing.

Beneficial Plant 'Spillover' Effect Seen From Landscape Corridors Posted: 21 May 2009 11:00 PM PDT Biologists show that using landscape corridors, the "superhighways" that connect isolated patches of habitat, to protect certain plants has a large "spillover" effect that increases the number of plant species outside the conservation area.

Safe For Passengers With Lung Disease To Travel By Air, Study Suggests Posted: 21 May 2009 11:00 PM PDT Oxygen levels while flying are substantially less than at ground level. Current guidelines for in-flight oxygen levels are sufficient to support the needs of passengers with non-obstructed lung disease. Commercial air travel appears to be safe for patients with lung disease as the current policies for the in-flight oxygen levels and availability of supplemental oxygen can adequately accommodate passenger's needs, according to two new studies

Bird Songs Change With The Landscape Posted: 21 May 2009 08:00 PM PDT When the going gets rough, the tough apparently sing slower. As vegetation reclaimed formerly cleared land in California, Oregon and Washington over the last 35 years, male white-crowned sparrows have lowered their pitch and slowed down their singing so that their love songs would carry better through heavier foliage. This is the first time that anyone has shown that bird songs can shift with rapid changes in habitat, scientists report.

New Strategies For Cell Therapy To Regenerate Damaged Heart Posted: 21 May 2009 08:00 PM PDT In animal models, stem cells derived from bone marrow and adipose tissue enhance heart function after a cardiac attack.

How An Enzyme Tells Stem Cells Which Way To Divide Posted: 21 May 2009 08:00 PM PDT Driving Miranda, a protein in fruit flies crucial to switch a stem cell's fate, is not as complex as biologists thought, according to biochemists. They've found that one enzyme stands alone and acts as a traffic cop that directs which roads daughter cells will take.

Obese Moms, Asthmatic Kids Posted: 21 May 2009 08:00 PM PDT Babies born to obese mothers may have an increased risk of asthma, according to data from a new study.

Swine Flu And Other New Infectious Diseases -- What's The Risk? Posted: 21 May 2009 08:00 PM PDT With the current outbreak of swine flu, and in the absence of a vaccine or treatment at present, the only way to contain the virus is to get people around the world to take precautionary measures. Researchers show that there are three key parameters that convince people to take precautions.

Tying Education To Future Goals May Boost Grades More Than Helping With Homework Posted: 21 May 2009 08:00 PM PDT Helping middle school students with their homework may not be the best way to get them on the honor roll. But telling them how important academic performance is to their future job prospects and providing specific strategies to study and learn might clinch the grades, according to a research review.

Marine Mammals' Brains Exposed To Hazardous Cocktail Of Pesticides Including DDT, PCBs, Brominated Flame Retardants Posted: 21 May 2009 05:00 PM PDT The most extensive study of pollutants in marine mammals' brains reveals that these animals are exposed to a hazardous cocktail of pesticides such as DDT and PCBs, as well as emerging contaminants such as brominated flame retardants.

Reassuring Evidence On The Outcome Of Children Born After Embryo Freezing Posted: 21 May 2009 05:00 PM PDT A new study provides reassuring evidence on the outcome of children born after embryos were frozen and stored, before being thawed and transferred to the womb. The results are good news as an increasing number of children, estimated to be 25% of assisted reproductive technology babies worldwide, are now born after freezing or vitrification (a process similar to freezing that prevents the formation of ice crystals).

Genital Stimulation Opens Door For Cryptic Female Choice In Tsetse Flies Posted: 21 May 2009 05:00 PM PDT Manipulation of male and/or female genitalia results in a suite of changes in female reproductive behavior in tsetse flies, carriers of African sleeping sickness.

Genes That Influence Start Of Menstruation Identified For First Time Posted: 21 May 2009 05:00 PM PDT Researchers from the Peninsula Medical School, along with collaborators from research institutions across Europe and the United States, have for the first time identified two genes that are involved in determining when girls begin menstruation.

Fast, Affordable Tool For Finding Gene 'On-off' Switches Posted: 21 May 2009 05:00 PM PDT Scientists have created a method of quickly identifying large numbers of the genetic material known as short hairpin RNA -- also called shRNA -- that turns genes on and off.

Children Whose Mothers Smoked During Pregnancy And Early Childhood More Likely To Smoke As Adults Posted: 21 May 2009 05:00 PM PDT Children of mothers who smoked during pregnancy and their early childhood years may be predisposed to take up smoking as teens and young adults, compounding the physical damage they sustained from the smoke exposure.

Why Do People With Down Syndrome Have Less Cancer? Research In Mice And Human Stem Cells Suggests New Therapeutic Targets Posted: 21 May 2009 02:00 PM PDT Most cancers are rare in people with Down syndrome. The late cancer researcher Judah Folkman, M.D., proposed that the extra copy of chromosome 21 may contain a gene that blocks angiogenesis, the development of blood vessels essential for cancer's growth. Now, new research confirms this idea, identifies specific therapeutic targets for treating cancer, and validates her mouse findings using induced pluripotent stem cells derived from a patient with Down syndrome.

Aerosolized Nanoparticles Show Promise For Delivering Antibiotic Treatment Posted: 21 May 2009 02:00 PM PDT Aerosol delivery of antibiotics via nanoparticles may provide a means to improve drug delivery and increase patient compliance, thus reducing the severity of individual illnesses, the spread of epidemics, and possibly even retarding antibiotic resistance.

From A Queen Song To A Better Music Search Engine Posted: 21 May 2009 02:00 PM PDT Electrical engineers presented a solution to their problem with the song "Bohemian Rhapsody" -- and it's not that they don't like this hit from the band Queen. The engineers' issue with "Bohemian Rhapsody" is that it is too heterogeneous.

Early Exposure To Tobacco Smoke May Lead To Early Emphysema Later Posted: 21 May 2009 02:00 PM PDT Chronic exposure to tobacco smoke in childhood may contribute to early emphysema later in life, according to new research. Environmental tobacco smoke is known to be associated with a variety of serious health problems, but it had not previously been associated with the development of emphysema over the life course.

Historical Anecdote Of Jordan's Red Soils May Offer New Antibiotic Posted: 21 May 2009 02:00 PM PDT Historical anecdotes of the red soils from the Hashemite Kingdom of Jordan tell of people using the soils to treat skin infections and diaper rash. Researchers suggest the healing power may be due to antibiotic-producing bacteria they have found living in the soil. This discovery may ultimately lead to new antibiotic treatments against harmful pathogens such as Staphylococcus aureus.

Sick Of The Same Old Thing? Researcher Finds Satiation Solution Posted: 21 May 2009 02:00 PM PDT Have you ever gotten sick of pizza, playing the same computer game, or had a song stuck in your head for so long you never wanted to hear it again? If you have, you may suffer from variety amnesia. New research may have found a cure for your satiation blues.

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
Inbox too full? Subscribe to the feed version of ScienceDaily: Latest Science News in a feed reader.
If you prefer to unsubscribe via postal mail, write to: ScienceDaily: Latest Science News, c/o Google, 20 W Kinzie, Chicago IL USA 60610