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135,929 articles from ScienceDaily

NASA Satellites Eye Coastal Water Quality

Researchers armed with data from two NASA satellites have invented a way to map the fleeting changes in coastal water quality from space. Sediments entering the water as a result of coastal development or pollution can cause changes in water turbidity – a measure of the amount of particles suspended in the water. Sediments suspended from the bottom by strong winds or tides may also cause...

Nicotine In Breast Milk Disrupts Infants' Sleep Patterns

Nicotine in the breast milk of lactating mothers who smoke cigarettes disrupts their infants' sleep patterns, according to a new study. The findings raise new questions regarding whether nicotine exposure through breast milk affects infant development. While many women quit or cut down on smoking while pregnant, they often relapse following the birth of the baby.

Treatment For COPD May Need To Start Before Birth

Poor airway function shortly after birth should be recognised as a risk factor for airflow obstruction in young adults, and prevention of chronic obstructive pulmonary disease (COPD) may need to start in fetal life. The authors conclude that individuals born with poorer lung function continue this trend up to 22 years of age, and that further research is needed into how the lungs develop in the...

Annual Flu Shot Cuts Need For Doctors' Visits, Hospitalization Among Children

Children under the age of 5 who receive an annual flu shot have a greatly reduced risk of needing to see their doctor or be admitted to the hospital because of flu-related illness. Vaccinating only half US children against influenza could eliminate as many as 650,000 doctor's office visits and 2,250 hospitalizations in a year, according to the study.

Gender And Handedness Influences On Monkeys' Brains Similar To Humans

Both sex and handedness influences on the relative size of the corpus callosum. Capuchin monkeys are playful, inquisitive primates known for their manual dexterity, complex social behavior, and cognitive abilities. New research now shows that just like humans, they display a fundamental sex difference in the organization of the brain, specifically in the corpus callosum, the region that connects...

Prostate Cancer Survivors Who Suffer From Urinary Incontinence Benefit from New Sling Procedure

A routine check-up for a businessman three years ago revealed prostate cancer. The cancer was caught in time, but a side effect of his successful surgery was "driving him nuts." Losing urine control because of coughing, laughing, sneezing, or lifting is both frustrating and debilitating for the more than 2 million men worldwide afflicted with the condition. Many of these men are prostate-cancer...


TUESDAY 4. SEPTEMBER 2007


Brewing A Blast-less Fertilizer

Down in the green, rolling hills and farmlands of Kentucky, Darrell Taulbee can often be found mixing up a batch of his homegrown fertilizer. But Taulbee isn't looking to grow a better Big Boy or distill a smoother bourbon, he tells us. He sets his sights on something far more sinister. Darrell Taulbee putters with this stuff to make sure another Oklahoma bombing never happens again.

Fat Transforms Vitamin C From 'Good Cop' Into 'Bad Cop'

Fat in the stomach may cause vitamin C to promote, rather than prevent, the formation of certain cancer causing chemicals, reveals new research. Fat remains in the proximal stomach for some time after a meal and also makes up a substantial amount of the cells lining the stomach, say the authors.

Single-Atom Data Storage, Single-Molecule Switching Could Lead To New Computer Devices

IBM has announced two major scientific achievements in the field of nanotechnology that could one day lead to new kinds of devices and structures built from a few atoms or molecules. Although still far from making their way into products, these breakthroughs will enable scientists at IBM and elsewhere to continue driving the field of nanotechnology, the exploration of building structures and...

Ancient Pig DNA Study Sheds New Light On Colonization Of Europe By Early Farmers

The earliest domesticated pigs in Europe, which many archaeologists believed to be descended from European wild boar, were actually introduced from the Middle East by Stone Age farmers, new research suggests. While archaeologists already know that agriculture began about 12,000 years ago in the central and western parts of the Middle East, spreading rapidly across Europe between 6,800 -- 4000 BC,...

Bacterial Treatment Gives Cooked Ham A 39 Day Shelf Life

Cooked ham could soon be given a 39 day shelf life with the help of a coating of protective bacteria. When commercially cured and then meat treated with bacteria as a preservative was tasted by an untrained panel of consumers it was rated as tastier, with a better texture and overall more acceptability than the same conventionally treated ham. Chemical studies showed that the bacteria treated ham...

Riding In Cars With Smokers: Secondhand Smoke Concentrations Problematic

It's Labor Day weekend and you have packed the family into the car for the two-hour drive to grandma's house. Because of the heat, you crank the AC and keep the windows closed. The problem is you are a smoker and after just two cigarettes you will have exposed your spouse and kids to particulates at a level well above government safety standards. That's the bottom-line finding of measurements...

SMART-1: Europe On The Moon, One Year On

A year ago, as Europe reached the Moon for the first time, scientists on Earth eagerly watched SMART-1's spectacular impact. New results from the impact analysis and from the instruments still keep coming.

When Are Toddlers Old Enough To Think About Out-of-sight Objects?

One of the most distinctive characteristics of humans is probably one you don't think of very often -- the capacity to learn based merely on what someone tells you. Researchers are attempting to discover when when we become capable of revising our mental representations of objects or situations based solely on what someone tells us.

Internet Map Looks Like A Digital Dandelion

What looks like the head of a digital dandelion is a map of the Internet generated by new algorithms from computer scientists. The new maps will be useful for studying worm outbreaks and many other issues in computer science and beyond.

Passive Smoking Increases Sleep Disturbance Among Pregnant Women

Pregnant women exposed to passive smoking are more likely to have sleep disturbances such as subjective insufficient sleep, difficulty in initiating sleep, short sleep duration, and snoring loudly or breathing uncomfortably, according to a new study. The results also showed that pregnant women who smoke had the same sleep disturbances, and also experienced excessive daytime sleepiness and early...

Auto Immune Response Creates Barrier To Fertility; Could Be A Step In Speciation

Plant biologists have discovered that an autoimmune response, triggered by a small number of genes, can be a barrier to producing a viable offspring. This could be a newly identified step toward speciation. This finding presents a new theory in the development of new species: two plants of the same species fail to reproduce not because of infestation or infection from an outside organism, nor from...

First Diploid Human Genome Sequence Shows We're Surprisingly Different

This new genome represents the first time a true diploid genome from one individual -- Dr. J. Craig Venter, has been published. From the combined data of more than 20 billion base pairs of DNA, the team was able to assemble the majority of Dr. Venter's genome. Since this genome assembly uniquely catalogues the contributions of each of the parental chromosomes, for the first time the amount of...

Pop Stars More Than Twice As Likely To Die An Early Death

Rock and pop stars are more than twice as likely as the rest of the population to die an early death, and within a few years of becoming famous, reveals new research. The findings are based on more than 1050 North American and European musicians and singers who shot to fame between 1956 and 1999.

Knee Arthritis Linked To Lung Cancer

Arthritis of the knee may be the first sign of a type of lung cancer that is hard to treat in heavy smokers, suggests new research. The researchers reviewed the case notes of all patients with rheumatic disorders, diagnosed at one tertiary referral centre over six years.

Onset Of Diabetes Higher In Patients Who Have Had Heart Attacks

People who have had heart attacks are at higher risk of developing both new-onset diabetes and the pre-diabetes condition impaired fasting glucose (IFG), conclude authors of a recent article. Patients with a recent heart attack were up to four-and-a-half times more likely to develop diabetes (3.7%) compared with the general population (0.8-1.6%), and more than 15 times more likely to develop IFG...

Population Movements And Money Remittances Spur Forest Regrowth

A study of social and economic influences on forest recovery in El Salvador highlights the importance of population movements spurred by war, land-use reforms and remittances of money by emigrants. Most analyses of forest cover in Central America have focused on loss of old-growth forests. In drawing attention to regrowth of woodland in a country that was extensively deforested during the 1970s,...