ScienceDaily: Latest Science News

---

• Tiny Device To 'Sniff Out' Disease, Heart Attacks, Poison And Environmental Pollution Developed
• How Marijuana Causes Memory Deficits
• On The Path To Metallic Hydrogen
• Drug-resistant Malaria Has Emerged In Cambodia
• Greenroofs Can Save Cities Millions Of Gallons Of Water
• Temptation More Powerful Than Individuals Realize
• Scientists Report Original Source Of Malaria
• Epilepsy Halted In Mice
• New Yeasts Could Help Fast-Track Biofuel Production
• Common Household Pesticides Linked To Childhood Cancer Cases In Washington Area
• Gasoline-diesel 'Cocktail': A Potent Recipe For Cleaner, More Efficient Engines
• TV And Computer Screen Time May Be Associated With High Blood Pressure In Young Children
• Computers Unlock More Secrets Of The Mysterious Indus Valley Script
• Heavy Drinkers Face Significantly Increased Cancer Risk
• Stem Cell 'Daughters' Lead To Breast Cancer
• Anti-influenza Drugs -- Relenza And Tamiflu -- Appear Equally Effective At Preventing Flu Symptoms
• Lakeshore Development Reduces Food Supplies For Fish
• Pain Relief Only One Motive For Opioid Use Among High School Seniors
• Regenerating Axons Can Be Guided And Reform Connections After Spinal Cord Injury
• Scientists Discover Bladder Cancer Stem Cell
• Unripe Banana Flour Could Give A Healthy Boost To Pasta
• Kefir, Although Rich In Probiotics, Didn't Prevent Diarrhea In Children Using Antibiotics
• Forecasting Cancer Recurrence With New Computer Model
• Preschool Depression May Continue Into Childhood
• Higher Carbon Dioxide May Give Pine Trees A Competitive Edge
• Tuberculosis Drugs Under Development Expected To Have Major Impact On The Disease
• Iron Isotopes As A Tool In Oceanography
• Low Short-term Risks After Bariatric Surgery For Extreme Obesity, Study Suggests
• BioVault Locks Up Biometrics
• Hospital Dramatically Increases Transplant Donations By Integrating Bereavement And Donor Services
• Millions Of U.S. Children Low In Vitamin D
• People Who Eat Deer And Elk With Chronic Wasting Disease May Avoid Infection Because Of Species Barrier, Study in Monkeys Suggests
• Anti-Growth Factor Drugs Raise Hope And Concern For Treatment Of Children's Eye Diseases
• Virulence Of Pandemic H1N1 Virus In Swine Populations
• Subjective Symptoms Of Sleep Quality And Daytime Sleepiness Associated With Declining Quality Of Life
• Effective Vaccine For Malaria Possible, Study Shows
• Harnessing Wave Power With New 'Oyster' Machine
• Exercise Benefits Leukemia Patients
• Urban Stream Pollution Can Be Good For Mosquitoes
• Why Anorexic Patients Cling To Their Eating Disorder
• Unlocking The Key To Human Fertility

Tiny Device To 'Sniff Out' Disease, Heart Attacks, Poison And Environmental Pollution Developed Posted: 04 Aug 2009 11:00 AM PDT Scientists have coupled biological materials with an electrode-based device to create a customizable sensor that can detect pathogens and biomarkers.

How Marijuana Causes Memory Deficits Posted: 04 Aug 2009 11:00 AM PDT Memory loss associated with marijuana use is caused by the drug's interference with the brain's natural protein synthesis machinery, according to a new study by European researchers.

On The Path To Metallic Hydrogen Posted: 04 Aug 2009 11:00 AM PDT A recently discovered hydrogen-based compound could be helpful in the search for metallic and superconducting forms of hydrogen.

Drug-resistant Malaria Has Emerged In Cambodia Posted: 04 Aug 2009 11:00 AM PDT Malaria parasites in western Cambodia have become resistant to artemisinin-based therapies, the first-line treatment for malaria, according to a new study. Resistance to the drugs makes them less effective and could eventually render them obsolete, putting millions of lives at risk.

Greenroofs Can Save Cities Millions Of Gallons Of Water Posted: 04 Aug 2009 11:00 AM PDT Having a garden on your roof isn't just nice for a garden party; it can make your city more environmentally friendly. Many American cities are beginning to incorporate greenroofs into their planning ordinances because they recognize that, planting a rooftop garden can offset heat, increase city biodiversity and decrease stormwater runoff. This runoff can be problematic in cities where rainwater is funneled by streets and parking lots directly into streams, carrying with it chemicals and debris and increasing the risk of flash floods.

Temptation More Powerful Than Individuals Realize Posted: 04 Aug 2009 11:00 AM PDT New research demonstrates that individuals believe they have more restraint than they actually possess -- ultimately leading to poor decision-making.

Scientists Report Original Source Of Malaria Posted: 04 Aug 2009 08:00 AM PDT Researchers have identified what they believe is the original source of malignant malaria: a parasite found in chimpanzees in equatorial Africa. The deadly parasite jumped to humans from chimpanzees, perhaps through one mosquito.

Epilepsy Halted In Mice Posted: 04 Aug 2009 08:00 AM PDT Scientists have prevented epilepsy caused by a gene defect from being passed on to mice offspring -- an achievement which may herald new therapies for people suffering from the condition.

New Yeasts Could Help Fast-Track Biofuel Production Posted: 04 Aug 2009 08:00 AM PDT A new yeast that makes ethanol from both five-carbon and six-carbon sugars without needing oxygen has now been developed. This could be an important breakthrough in industrial ethanol production, because it's difficult to control oxygen levels as yeasts ferment sugars into ethanol. The new yeast strain would help alleviate this problem.

Common Household Pesticides Linked To Childhood Cancer Cases In Washington Area Posted: 04 Aug 2009 08:00 AM PDT Researchers find a higher level of common household pesticides in the urine of children with acute lymphoblastic leukemia, a cancer that develops most commonly between three and seven years of age. The findings should not be seen as cause-and-effect, but suggests an association between pesticide exposure and development of childhood ALL.

Gasoline-diesel 'Cocktail': A Potent Recipe For Cleaner, More Efficient Engines Posted: 04 Aug 2009 08:00 AM PDT Diesel and gasoline fuel sources both bring unique assets and liabilities to powering internal combustion engines. But what if an engine could be programmed to harvest the best properties of both fuel sources at once, on the fly, by blending the fuels within the combustion chamber?

TV And Computer Screen Time May Be Associated With High Blood Pressure In Young Children Posted: 04 Aug 2009 08:00 AM PDT Sedentary behaviors such as TV viewing and "screen time" involving computer use, videos and video games appear to be associated with elevated blood pressure in children, independent of body composition, according to a new report.

Computers Unlock More Secrets Of The Mysterious Indus Valley Script Posted: 04 Aug 2009 05:00 AM PDT A statistical analysis reveals distinct patterns in ancient Indus symbols, and creates a hypothetical model for the unknown language.

Heavy Drinkers Face Significantly Increased Cancer Risk Posted: 04 Aug 2009 05:00 AM PDT Heavy drinkers of beer and spirits face a much higher risk of developing cancer than the population at large, say epidemiologists and cancer researchers. Heavy consumption of beer and spirits have now been linked to 6 different cancers. People in the highest consumption category increased their risk of developing esophageal cancer sevenfold, colon cancer by 80 percent and even lung cancer by 50 percent.

Stem Cell 'Daughters' Lead To Breast Cancer Posted: 04 Aug 2009 05:00 AM PDT Scientists have found that a population of breast cells called luminal progenitor cells are likely to be responsible for breast cancers that develop in women carrying mutations in the gene BRCA1.

Anti-influenza Drugs -- Relenza And Tamiflu -- Appear Equally Effective At Preventing Flu Symptoms Posted: 04 Aug 2009 05:00 AM PDT Two common anti-influenza drugs -- Relenza and Tamiflu -- appear equally effective at preventing common flu symptoms when given before infection, say researchers. However, data is lacking on the effectiveness and safety of the two drugs in vulnerable groups such as the very young and people with compromised immune systems.

Lakeshore Development Reduces Food Supplies For Fish Posted: 04 Aug 2009 05:00 AM PDT Freshwater fish, especially stream fish, rely on terrestrial insects as a portion of their food supply. But little is known about their importance to fish in lakes, where the size and shape of a lake can determine how much its fish rely on shoreline food sources. Researchers found that trout in developed lakes had a 50 percent lower daily intake of energy.

Pain Relief Only One Motive For Opioid Use Among High School Seniors Posted: 04 Aug 2009 05:00 AM PDT Taking opioid drugs without a prescription appears relatively common among high school seniors, according to a new report. The most common reasons survey respondents gave for taking the medications included relaxation, feeling good or getting high, experimentation and pain relief.

Regenerating Axons Can Be Guided And Reform Connections After Spinal Cord Injury Posted: 04 Aug 2009 02:00 AM PDT In a major step in spinal cord injury research, scientists have demonstrated that regenerating axons can be guided to their correct targets and reform connections after spinal cord injury.

Scientists Discover Bladder Cancer Stem Cell Posted: 04 Aug 2009 02:00 AM PDT Researchers have identified the first human bladder cancer stem cell and revealed how it works to escape the body's natural defenses.

Unripe Banana Flour Could Give A Healthy Boost To Pasta Posted: 04 Aug 2009 02:00 AM PDT Supplementing spaghetti with unripe banana flour may be a healthy addition since banana flour contains antioxidants and fiber, according to a new study.

Kefir, Although Rich In Probiotics, Didn't Prevent Diarrhea In Children Using Antibiotics Posted: 04 Aug 2009 02:00 AM PDT Kefir, one of the world's oldest "health" drinks, did little to prevent diarrhea in young children being treated with antibiotics, say researchers who tested the drink in a unique and rigorous double-blind clinical trial.

Forecasting Cancer Recurrence With New Computer Model Posted: 04 Aug 2009 02:00 AM PDT Two people with the same kind of cancer who receive the exact same treatment may nevertheless have different chances of their tumors coming back years later. Now a team of scientists has developed a computer model that predicts cancer recurrence in an individual based on how her tumor changes size in response to the first rounds of radiation therapy.

Preschool Depression May Continue Into Childhood Posted: 04 Aug 2009 02:00 AM PDT Depression among preschoolers appears to be a continuous, chronic condition rather than a transient developmental stage, according to a new report.

Higher Carbon Dioxide May Give Pine Trees A Competitive Edge Posted: 03 Aug 2009 11:00 PM PDT Pine trees grown for 12 years in air one-and-a-half times richer in carbon dioxide than today's levels produced twice as many seeds of at least as good a quality as those growing under normal conditions.

Tuberculosis Drugs Under Development Expected To Have Major Impact On The Disease Posted: 03 Aug 2009 11:00 PM PDT The latest drug regimens, vaccines and diagnostic tools under development to combat tuberculosis could have a potentially large impact on the disease once they become available, according to research findings.

Iron Isotopes As A Tool In Oceanography Posted: 03 Aug 2009 11:00 PM PDT New research highlights the potential utility of iron isotopes for addressing important questions in ocean science.

Low Short-term Risks After Bariatric Surgery For Extreme Obesity, Study Suggests Posted: 03 Aug 2009 11:00 PM PDT Short-term complications and death rates were low following bariatric surgery to limit the amount of food that can enter the stomach, decrease absorption of food or both, according to the Longitudinal Assessment of Bariatric Surgery.

BioVault Locks Up Biometrics Posted: 03 Aug 2009 11:00 PM PDT A system that allows biometric data to be used to create a secret key for data encryption has been developed by researchers in South Africa.

Hospital Dramatically Increases Transplant Donations By Integrating Bereavement And Donor Services Posted: 03 Aug 2009 11:00 PM PDT A UK hospital that combined its bereavement and donation services saw a forty-fold increase in tissue donations, such as corneas, in just five years. Between 2002 and 2007 the number of tissue donors rose from six to 246, while solid organ donation rates remained stable. The introduction of an automatic trigger to the regional transplant donor co-ordinators in 2007 resulted in 31 referrals and 11 multi-organ donors.

Millions Of U.S. Children Low In Vitamin D Posted: 03 Aug 2009 08:00 PM PDT Seven out of 10 U.S. children have low levels of vitamin D, raising their risk of bone and heart disease, according to a study of over 6,000 children.

People Who Eat Deer And Elk With Chronic Wasting Disease May Avoid Infection Because Of Species Barrier, Study in Monkeys Suggests Posted: 03 Aug 2009 08:00 PM PDT Data from an ongoing study in monkeys suggest that people who consume deer and elk with chronic wasting disease may be protected from infection by an inability of the CWD infectious agent to spread to people.

Anti-Growth Factor Drugs Raise Hope And Concern For Treatment Of Children's Eye Diseases Posted: 03 Aug 2009 08:00 PM PDT A new class of antibody drugs may provide a powerful new tool for the treatment of eye diseases in children, but specialists need to be alert for the possibility of serious side effects, according to a new editorial.

Virulence Of Pandemic H1N1 Virus In Swine Populations Posted: 03 Aug 2009 08:00 PM PDT Laboratory studies are making headway in the effort to control the pandemic H1N1 virus. Researchers are developing better testing tools, creating a "diagnostic arsenal" to use if H1N1 were to spread to swine populations.

Subjective Symptoms Of Sleep Quality And Daytime Sleepiness Associated With Declining Quality Of Life Posted: 03 Aug 2009 08:00 PM PDT A new study indicates that self-reported worsening in initiating and maintaining sleep over a five-year period was significantly associated with poorer mental quality of life, and increasing daytime sleepiness symptoms were associated with both poorer physical and mental quality of life.

Effective Vaccine For Malaria Possible, Study Shows Posted: 03 Aug 2009 05:00 PM PDT Scientists have developed a novel immunization method that will induce fast and effective protection in humans against the life-threatening malaria parasite, Plasmodium falciparum.

Harnessing Wave Power With New 'Oyster' Machine Posted: 03 Aug 2009 05:00 PM PDT A giant new machine called 'Oyster' designed to harness the power of ocean waves and turn it into 'green' electricity is being installed on the seabed off the Atlantic shores of the Orkney Islands. In autumn 2009 it will undergo demonstration trials to prove whether its innovative technology could lead to a commercial source of renewable energy for use in seashores around the world.

Exercise Benefits Leukemia Patients Posted: 03 Aug 2009 05:00 PM PDT A new study suggests that exercise may be an effective way to combat the debilitating fatigue that leukemia patients experience.

Urban Stream Pollution Can Be Good For Mosquitoes Posted: 03 Aug 2009 05:00 PM PDT Sewage overflows are a fact of life in urban areas, and in many cities, excess sewage water enters streams and lakes with rain runoff. Although this pollution is harmful to most organisms, there is one group of insects that thrives on it: mosquitoes.

Why Anorexic Patients Cling To Their Eating Disorder Posted: 03 Aug 2009 05:00 PM PDT Anorexic patients drastically reduce food intake and are often not capable of changing their behavior. This can lead to life-threatening weight loss. Using MRI technology, scientists have discovered for the first time processes in brain metabolism that explain this disturbed eating behavior.

Unlocking The Key To Human Fertility Posted: 03 Aug 2009 02:00 PM PDT Scientists have discovered a unique "DNA signature" in human sperm, which may act as a key that unlocks an egg's fertility and triggers new life.

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