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168,089 articles from ScienceDaily
What are the right food supplements during pregnancy? Study shows risky knowledge gaps
- ScienceDaily
- 11/1/31 16:23
Mothers-to-be can cover increased demands for most nutrients, vitamins and minerals with a balanced diet, but where dietary supplements are needed during pregnancy, knowledge may be a missing ingredient. According to researchers in Germany, pregnant women often start taking appropriate dietary supplements too late or not at all. Other micronutrients, whose effects during pregnancy have not yet...
Casualties of war: Wounded veterans more likely to die of coronary heart disease
- ScienceDaily
- 11/1/31 16:23
War-time stress may lead to an increased risk death by coronary heart disease in later life. Researchers surveyed a cohort of 55 year old Finnish WW2 veterans in 1980, and then carried out a follow-up study 28 years later.
Mussel power: Universal solvent no match for new self-healing sticky gel
- ScienceDaily
- 11/1/31 16:23
Scientists can now manufacture a synthetic version of the self-healing sticky substance that mussels use to anchor themselves to rocks in pounding ocean surf and surging tidal basins. Potential applications include use as an adhesive or coating for underwater machinery or in biomedical settings as a surgical adhesive or bonding agent for...
New African wolf discovered
- ScienceDaily
- 11/1/31 16:23
Scientists studying genetic evidence have discovered a new species of wolf living in Africa. The researchers have proved that the mysterious animal, known as the 'Egyptian jackal' and often confused with the golden jackal, is not a sub-species of jackal but a gray wolf.
Hormone therapy begun at menopause may pose risk for breast cancer
- ScienceDaily
- 11/1/31 16:23
Starting hormone therapy at around the time of menopause is associated with a greater risk of breast cancer compared to starting after a longer gap, according to a new study.
Adult skin cells converted directly to beating heart cells
- ScienceDaily
- 11/1/31 14:00
Scientists have converted adult skin cells directly into beating heart cells efficiently without having to first go through the laborious process of generating embryonic-like stem cells. The powerful general technology platform could lead to new treatments for a range of diseases and injuries involving cell loss or damage, such as heart disease, Parkinson's, and Alzheimer's...
Genetic clues to compulsive, self-injurious behavior in rare childhood disorder
- ScienceDaily
- 11/1/31 14:00
Research provides new clues for the compulsive behavior and cognitive defects associated with a rare childhood neurological disease called Lesch-Nyhan Disease (LND). Two pathways found to be defective in LND are known to be associated with other neurodegenerative disease, such as Alzheimer's and Parknson's diseases, suggesting common causes of cognitive and behavioral defects in these neurological...
Pre-surgical stress management boosts immune function, lowers mood disturbance in prostate cancer patients
- ScienceDaily
- 11/1/31 14:00
Practicing stress management techniques before prostate cancer surgery may help activate the body's immune response leading to quicker recovery, as well as aid in lowering mood disturbance, according to a new study.
Analysis of bread mold genomes demos 'reverse-ecology' tool
- ScienceDaily
- 11/1/31 06:00
In a demonstration of "reverse-ecology," biologists have shown that one can determine an organism's adaptive traits by looking first at its genome and checking for variations across a population. The study offers a powerful new tool in evolutionary genetics research, one that could be used to help monitor the effects of climate change and habitat...
Ants' ecosystem role is 'key'
- ScienceDaily
- 11/1/31 06:00
Research on the impact of ants on their local environment has revealed they play an important role. They have a dual effect on their local ecosystem which affects both the density and diversity of other species around them, including animals much higher up the food chain.
Atomically thin ‘switch’ makes for smarter ICT devices in the future
- ScienceDaily
- 11/1/31 06:00
Researchers have developed a new graphene transistor with 1000 times higher on/off switching ratio.
Children's genetic potentials are subdued by poverty: Effects show by age 2
- ScienceDaily
- 11/1/31 06:00
Children from poorer families do worse in school, are less likely to graduate from high school, and are less likely to go to college. A new study finds that these differences appear surprisingly early: by the age of 2. It's not a genetic difference. Instead, something about the poorer children's environment is keeping them from realizing their genetic...
Different evolutionary paths lead plants and animals to the same crossroads
- ScienceDaily
- 11/1/31 06:00
In analyzing the molecular sensor for the plant growth hormone brassinolide, researchers discovered that although plants took an evolutionary path different from their animal cousins, they arrived at similar solutions to a common problem: How to reliably receive and process incoming...
Explosive- and drug-sniffing dog performance is affected by their handlers' beliefs
- ScienceDaily
- 11/1/31 06:00
Drug- and explosives-sniffing dog/handler teams' performance is affected by human handlers' beliefs, possibly in response to subtle, unintentional handler cues, a new study has found. The study found that detection-dog/handler teams erroneously "alerted," or identified a scent, when there was no scent present more than 200 times -- particularly when the handler believed that there was scent...
Fewer bats carry rabies than thought
- ScienceDaily
- 11/1/31 06:00
Bats are not as disease-ridden as the stigma suggests, according to new research. Previous studies have suggested that typically about 10 percent of bats taken by the public to be tested have rabies but new research says the number is closer to one per cent regardless of species or where the bats...
If junk DNA is useful, why is it not shared more equally?
- ScienceDaily
- 11/1/31 06:00
Recently, it has become clear that "junk DNA" performs a wide range of tasks. But why do some organisms have so much of it and others so little? A particular puzzle is posed by introns, stretches of DNA that interrupt the sequence of genes. Researchers propose a mechanism to account for the range of intron numbers observed between different...
Key protein suppresses prostate cancer growth in the laboratory
- ScienceDaily
- 11/1/31 06:00
Cancer researchers have discovered an important protein, produced naturally inside cells, that appears to suppress the growth of prostate cancer cells in the laboratory. The findings offer promising leads for research towards new treatments.
Neuroscientists find memory storage, reactivation process more complex than previously thought
- ScienceDaily
- 11/1/31 06:00
The process we use to store memories is more complex than previously thought, neuroscientists have found. New research underscores the challenges in addressing memory-related ailments, such as post-traumatic stress disorder.
New approach needed to prevent major 'systemic failures' such as power outages, subprime mortgage crisis and Gulf oil spill
- ScienceDaily
- 11/1/31 06:00
A Purdue University researcher is proposing development of a new cross-disciplinary approach for analyzing and preventing systemic failures in complex systems that play a role in calamities ranging from huge power outages to the BP Deepwater Horizon disaster and the subprime mortgage...
Newly discovered dinosaur likely father of Triceratops
- ScienceDaily
- 11/1/31 06:00
Triceratops and Torosaurus have long been considered the kings of the horned dinosaurs. But a new discovery traces the giants' family tree further back in time, when a newly discovered species called Titanoceratops appears to have reigned long before its more well-known descendants, making it the earliest known member of its...
Pakistan floods last summer could have been predicted, experts say
- ScienceDaily
- 11/1/31 06:00
Five days before intense monsoonal deluges unleashed vast floods across Pakistan last July, computer models at a European weather-forecasting center were giving clear indications that the downpours were imminent. Now, a new scientific study that retrospectively examines the raw data from these computer models, has confirmed that, if the information had been processed, forecasters could have...
Physicists challenge classical world with quantum-mechanical implementation of 'shell game'
- ScienceDaily
- 11/1/31 06:00
Inspired by the popular confidence trick known as "shell game," researchers have demonstrated the ability to hide and shuffle "quantum-mechanical peas" -- microwave single photons -- under and between three microwave resonators, or "quantized shells."
Plankton inspires creation of stealth armor for slow-release microscopic drug vehicles
- ScienceDaily
- 11/1/31 06:00
The ability of some plankton and bacteria to build an extra natural layer of nanoparticle-like armor has inspired chemists to devise a startlingly simple way to give drug bearing polymer vesicles (microscopic polymer based sacs of liquid) their own armored protection, and in some cases provide "stealth" capabilities which can avoid the body's defenses while releasing the...
Plants can adapt genetically to survive harsh environments
- ScienceDaily
- 11/1/31 06:00
Scientist have found genetic evidence of how some plants adapt to live in unfavorable conditions, a finding he believes could one day be used to help food crops survive in new or changing environments.
Recalled implantable cardioverter-defibrillator (ICD) leads fail in women, youths most often
- ScienceDaily
- 11/1/31 06:00
The recalled Sprint Fidelis implantable cardioverter-defibrillator (ICD) leads failed more often in younger patients, women, and individuals with hereditary heart disease, according to a multi-center study. The researchers found that lead failure was not associated with death or serious...