ScienceDaily: Top News |
- Researchers edit plant DNA using mechanism evolved in bacteria
- How 'perfect' materials begin to fail
- Minding the gap: City bats won't fly through bright spaces
- Critically endangered species should be left to breed in the wild
- Women's contribution to healthcare constitutes nearly 5% of global GDP, but nearly half is unpaid and unrecognized
- Applying research agendas to sport fishing
- Moderate exercise helps prevent gestational diabetes, reduce weight gain during pregnancy
- Black women often cope with infertility alone
- Research offers a new approach to improving HIV vaccines
- Programming DNA to reverse antibiotic resistance in bacteria
- Immune system marker for therapy-resistant prostate cancer
- Historian discusses the threat birds posed to the power grid in 1920s California
- New tropical tree species await discovery
- Internet privacy manifesto calls for more consumer power
- Tuning friction to the point where it disappears may boost development of nanomachines
- Evidence against a global warming hiatus?
- Warmer, lower-oxygen oceans will shift marine habitats
- Planarian regeneration model discovered by artificial intelligence
- Delay of gratification linked to how brain structures are connected
- Eating less during late night hours may stave off some effects of sleep deprivation
- Why are 95% of people who live to 110 women? You're as old as your stem cells
- Clues to Earth's ancient core
- DNA breakage underlies both learning, age-related damage
- How dividing cells end up the same size
- Extra DNA creates cucumber with all female flowers
- Female mice are able to smell male pheromones only when ready to mate
- New species of horned dinosaur with 'bizarre' features revealed
- Global marine data to become unified, accessible
- World's first digitally-encoded synthetic polymers
- Do cheaters have an evolutionary advantage?
- Protein maintains double duty as key cog in body clock and metabolic control
- Your viral infection history in a single drop of blood
- Bee warned: Study finds pesticides threaten native pollinators
- Study maps types of physical activity associated with better sleep
- Withholding angiotensin receptor blockers after surgery increases risk of postoperative death
- Recovering predators create new wildlife management challenges
- Cancer screening increase may reflect Affordable Care Act provision
- Why some threatened corals swap 'algae' partners
- Household items, toys key to infant motor skill development, research finds
- How salmonella synchronizes its invasion plan
- Largest turtle breeding colony in the Atlantic discovered
- Feeding caterpillars make leaves shine
- Australian fossil forces rethink on our ancestors' emergence onto land
- Research points to effective methods of freezing avian red blood cells
- Air pollution below EPA standards linked with higher death rates
- Researcher finds rare Vietnamese rabbit
- Exiled stars explode far from home
- Low-cost weight loss program has long-term results, study shows
- Thirty years of AIDS data highlight survival gains, room for improvement
- Seven new miniaturized frog species found in the Brazilian Atlantic Rainforest
- Ancient El Niños triggered Baja bunny booms
- Developing delirium in ICU linked to fatal outcomes
- New tool brings standards to epigenetic studies
- New study calls for radical shake-up of the Early Years curriculum to help boost achievements of summer born children
- Interruption of Gulf Stream may lead to large cooling in Europe
- Re-use of paper sludge via pyrolysis
- DNA that only females have
- Simulation helps to prepare for the consequences of natural disasters
- 'Vampire' plants can have positive impact up the food chain
- Is dietary supplementation appropriate for children with Autism Spectrum Disorder?
Researchers edit plant DNA using mechanism evolved in bacteria Posted: 04 Jun 2015 05:35 PM PDT Researchers have used a gene editing tool known as CRISPR/Cas to modify the genome of a tree species for the first time. Their research opens the door to more rapid and reliable gene editing of plants. By mutating specific genes in Populus -- a genus of deciduous trees that includes poplar, aspen and cottonwood -- the researchers reduced the concentrations of two naturally occurring plant polymers. |
How 'perfect' materials begin to fail Posted: 04 Jun 2015 05:35 PM PDT |
Minding the gap: City bats won't fly through bright spaces Posted: 04 Jun 2015 05:35 PM PDT Researchers have discovered that bats living in a city are less likely to move from tree to tree in brightly lit areas. The bats studied in this experiment emerge in the evening from their roosts, often within residential housing areas, to feed on small insects in gardens, streams and other green spaces. To reach these feeding areas they often "commute" along lines of trees, which are thought to provide protection from predators and high winds. |
Critically endangered species should be left to breed in the wild Posted: 04 Jun 2015 05:34 PM PDT |
Posted: 04 Jun 2015 05:34 PM PDT |
Applying research agendas to sport fishing Posted: 04 Jun 2015 02:21 PM PDT As one of the most highly prized game fish in the upper Midwest, muskellunge (also known as muskies) and northern pike help support a $20 billion sport fishing industry. Facing declines in natural reproduction, a team of scientists has developed a list of research and management needs to help keep the fish -- and the industry -- thriving. |
Moderate exercise helps prevent gestational diabetes, reduce weight gain during pregnancy Posted: 04 Jun 2015 01:26 PM PDT Women who exercise during pregnancy are less likely to have gestational diabetes, and the exercise also helps to reduce maternal weight gain, finds a study. Gestational diabetes is one of the most frequent complications of pregnancy. It is associated with an increased risk of serious disorders such as pre-eclampsia, hypertension, preterm birth, and with induced or caesarean birth. |
Black women often cope with infertility alone Posted: 04 Jun 2015 01:26 PM PDT |
Research offers a new approach to improving HIV vaccines Posted: 04 Jun 2015 01:26 PM PDT |
Programming DNA to reverse antibiotic resistance in bacteria Posted: 04 Jun 2015 01:26 PM PDT New research introduces a promising new tool to combat the rapid, extensive spread of antibiotic resistance around the world. It nukes antibiotic resistance in selected bacteria, and renders other bacteria more sensitive to antibiotics. The research, if ultimately applied to pathogens on hospital surfaces or medical personnel's hands, could turn the tide on untreatable, often lethal bacterial infections. |
Immune system marker for therapy-resistant prostate cancer Posted: 04 Jun 2015 01:26 PM PDT |
Historian discusses the threat birds posed to the power grid in 1920s California Posted: 04 Jun 2015 01:26 PM PDT In 1913 in Southern California, two 241-mile-long electric lines began carrying power from hydroelectric dams in the Sierra Nevada to customers in Los Angeles--a massive feat of infrastructure. In 1923, power company Southern California Edison upgraded the line to carry 220,000 volts, among the highest voltage lines in the world at the time. Now a new paper examines a threat to that power grid: voluminous streams of bird excrement. |
New tropical tree species await discovery Posted: 04 Jun 2015 01:26 PM PDT |
Internet privacy manifesto calls for more consumer power Posted: 04 Jun 2015 01:25 PM PDT A revolutionary power shift from internet giants such as Google to ordinary consumers is critically overdue, according to new research from an online privacy expert. In a manifesto that ranges from "the right to be treated fairly on the internet" to finding a better, more nuanced approach to using the internet as an archive, the author delves deeper into his research on the so-called 'right to be forgotten.' |
Tuning friction to the point where it disappears may boost development of nanomachines Posted: 04 Jun 2015 01:25 PM PDT Physicists have developed an experimental technique to simulate friction at the nanoscale. Using their technique, the researchers are able to directly observe individual atoms at the interface of two surfaces and manipulate their arrangement, tuning the amount of friction between the surfaces. By changing the spacing of atoms on one surface, they observed a point at which friction disappears. |
Evidence against a global warming hiatus? Posted: 04 Jun 2015 01:25 PM PDT |
Warmer, lower-oxygen oceans will shift marine habitats Posted: 04 Jun 2015 01:24 PM PDT |
Planarian regeneration model discovered by artificial intelligence Posted: 04 Jun 2015 01:24 PM PDT An artificial intelligence system has for the first time reverse-engineered the regeneration mechanism of planaria -- the small worms whose power to regrow body parts makes them a research model in human regenerative medicine. The discovery presents the first model of regeneration discovered by a non-human intelligence and the first comprehensive model of planarian regeneration, which has eluded human scientists for a century. |
Delay of gratification linked to how brain structures are connected Posted: 04 Jun 2015 01:22 PM PDT |
Eating less during late night hours may stave off some effects of sleep deprivation Posted: 04 Jun 2015 11:19 AM PDT |
Why are 95% of people who live to 110 women? You're as old as your stem cells Posted: 04 Jun 2015 11:19 AM PDT Human supercentenarians share at least one thing in common--over 95 percent are women. Scientists have long observed differences between the sexes when it comes to aging, but there is no clear explanation for why females live longer. In a discussion of what we know about stem cell behavior and sex, researchers argue that it's time to look at differences in regenerative decline between men and women. This line of research could open up new explanations for how the sex hormones estrogen and testosterone, or other factors, modify lifespan. |
Posted: 04 Jun 2015 11:19 AM PDT |
DNA breakage underlies both learning, age-related damage Posted: 04 Jun 2015 11:18 AM PDT |
How dividing cells end up the same size Posted: 04 Jun 2015 11:18 AM PDT |
Extra DNA creates cucumber with all female flowers Posted: 04 Jun 2015 11:18 AM PDT |
Female mice are able to smell male pheromones only when ready to mate Posted: 04 Jun 2015 11:17 AM PDT |
New species of horned dinosaur with 'bizarre' features revealed Posted: 04 Jun 2015 11:17 AM PDT About 10 years ago, someone stumbled across some bones sticking out of a cliff along the Oldman River in southeastern Alberta, Canada. Now, scientists describe that those bones belonged to a nearly intact skull of a very unusual horned dinosaur -- a close relative of the familiar Triceratops that had been unknown to science until now. |
Global marine data to become unified, accessible Posted: 04 Jun 2015 11:16 AM PDT |
World's first digitally-encoded synthetic polymers Posted: 04 Jun 2015 11:16 AM PDT |
Do cheaters have an evolutionary advantage? Posted: 04 Jun 2015 11:15 AM PDT What is it with cheating? Cheaters seem to have an immediate advantage over cooperators, but do they have an evolutionary advantage? A new study suggests the benefits of cheating change with its prevalence,in a population. Cheaters may succeed, for example, only when they are rare, and fail when they become so numerous they push out cooperators. |
Protein maintains double duty as key cog in body clock and metabolic control Posted: 04 Jun 2015 11:14 AM PDT |
Your viral infection history in a single drop of blood Posted: 04 Jun 2015 11:14 AM PDT |
Bee warned: Study finds pesticides threaten native pollinators Posted: 04 Jun 2015 07:41 AM PDT |
Study maps types of physical activity associated with better sleep Posted: 04 Jun 2015 07:41 AM PDT Physical activities, such as walking, as well as aerobics/calisthenics, running, weight-lifting, and yoga/Pilates are associated with better sleep habits, compared to no activity, according to a new study. In contrast, the study shows that other types of physical activity -- such as household and childcare -- work are associated with increased cases of poor sleep habits. |
Withholding angiotensin receptor blockers after surgery increases risk of postoperative death Posted: 04 Jun 2015 07:41 AM PDT |
Recovering predators create new wildlife management challenges Posted: 04 Jun 2015 07:41 AM PDT |
Cancer screening increase may reflect Affordable Care Act provision Posted: 04 Jun 2015 07:41 AM PDT |
Why some threatened corals swap 'algae' partners Posted: 04 Jun 2015 07:09 AM PDT |
Household items, toys key to infant motor skill development, research finds Posted: 04 Jun 2015 07:09 AM PDT |
How salmonella synchronizes its invasion plan Posted: 04 Jun 2015 07:08 AM PDT A new study has uncovered a mechanism by which Salmonella bacteria organize the expression of genes required for infection. Salmonella bacteria are one of the leading causes of food borne illness. Part of what makes them so successful is their ability to invade our bodies, overcoming our natural defenses. Understanding how they do this could lead to new ways of preventing their invasion, researchers say. |
Largest turtle breeding colony in the Atlantic discovered Posted: 04 Jun 2015 07:08 AM PDT |
Feeding caterpillars make leaves shine Posted: 04 Jun 2015 07:08 AM PDT Scientists have succeeded in visualizing the immediate wound or herbivory responses in plants. They used Arabidopsis thaliana plants that produce a special protein which breaks down after the binding of calcium ions and emits free energy in the form of light. Visualization revealed that calcium signals occur systemically and wander from attacked to neighboring leaves. |
Australian fossil forces rethink on our ancestors' emergence onto land Posted: 04 Jun 2015 07:08 AM PDT |
Research points to effective methods of freezing avian red blood cells Posted: 04 Jun 2015 07:08 AM PDT Birds, like people, can suffer from conditions where a blood transfusion is a necessary life-saving measure. But in many instances, unless an avian donor is readily available, accessing blood is impossible because of the challenges associated with storing the species' red blood cells. A substance called dimethyl sulfoxide (DMSO) shows promise as a potential cryopreservant for freezing avian blood, research shows. |
Air pollution below EPA standards linked with higher death rates Posted: 04 Jun 2015 07:08 AM PDT Death rates among people over 65 are higher in zip codes with more fine particulate air pollution (PM2.5) than in those with lower levels of PM2.5, researchers have found. The harmful effects from the particles were observed even in areas where concentrations were less than a third of the current standard set by the Environmental Protection Agency (EPA). |
Researcher finds rare Vietnamese rabbit Posted: 04 Jun 2015 05:47 AM PDT A rare and elusive rabbit has been found, held and photographed by a researcher. The Annamite striped rabbit, found in the forests of Laos and Vietnam, was first documented by rabbit expert Dr Diana Bell in 1999. It has rarely been seen since. A British researcher set out on a three-month expedition to track the recently discovered rabbit and study its habitat. |
Exiled stars explode far from home Posted: 04 Jun 2015 05:47 AM PDT Astronomers usually discover supernovae within large galaxies, where a star explodes perhaps once a century. Now a team of astronomers has used the sharp imaging capability of the Hubble Space Telescope to confirm that three exploding stars found in the empty regions between galaxies in a cluster were in fact lonely supernovae unattached to any galaxy at all. They were probably ripped from their host galaxies eons ago and exploded far from home. |
Low-cost weight loss program has long-term results, study shows Posted: 04 Jun 2015 05:47 AM PDT Clinically significant weight loss is defined as losing 5 percent or more of one's body weight, because weight-related medical conditions, such as diabetes, can improve with that level of weight loss. As America's obesity epidemic continues to grow, a new study shows that a low-cost, non-profit weight loss program offers the kind of long-term results that often elude dieters. |
Thirty years of AIDS data highlight survival gains, room for improvement Posted: 04 Jun 2015 05:47 AM PDT Although treatment advances have dramatically reduced deaths from opportunistic infections related to AIDS, a new study drawing on 30 years of data from more than 20,000 patients in San Francisco suggests there is still ample room to improve. About a third -- 35 percent -- of AIDS patients diagnosed with their first opportunistic infection from 1997 to 2012 in that city died within five years, according to the study. |
Seven new miniaturized frog species found in the Brazilian Atlantic Rainforest Posted: 04 Jun 2015 05:47 AM PDT Following nearly five years of exploration in mountainous areas of the southern Brazilian Atlantic Rainforest, a team of researchers has uncovered seven new species of a highly miniaturized, brightly colored frog genus known as Brachycephalus. Each species is remarkably endemic, being restricted to cloud forests in one or a few adjacent mountaintops, thus making them highly vulnerable to extinction, particularly due to shifts in the distribution of cloud forest due to climate change. |
Ancient El Niños triggered Baja bunny booms Posted: 04 Jun 2015 05:46 AM PDT |
Developing delirium in ICU linked to fatal outcomes Posted: 04 Jun 2015 05:46 AM PDT |
New tool brings standards to epigenetic studies Posted: 04 Jun 2015 05:46 AM PDT |
Posted: 04 Jun 2015 05:45 AM PDT |
Interruption of Gulf Stream may lead to large cooling in Europe Posted: 04 Jun 2015 05:45 AM PDT A new record of past climate change shows that a warm climate in northern Europe can be hit by a sudden cooling associated with an interruption of the North Atlantic Ocean circulation and the Gulf Stream. This study investigates the development of northern European climate about 120 thousand years ago. |
Re-use of paper sludge via pyrolysis Posted: 04 Jun 2015 05:45 AM PDT |
Posted: 04 Jun 2015 05:45 AM PDT In many animal species, the chromosomes differ between the sexes. The male has a Y chromosome. In some animals, however, for example birds, it is the other way round. In birds, the females have their own sex chromosome, the W chromosome. For the first, researchers have mapped the genetic structure and evolution of the W chromosome. |
Simulation helps to prepare for the consequences of natural disasters Posted: 04 Jun 2015 05:44 AM PDT |
'Vampire' plants can have positive impact up the food chain Posted: 04 Jun 2015 05:44 AM PDT |
Is dietary supplementation appropriate for children with Autism Spectrum Disorder? Posted: 04 Jun 2015 05:44 AM PDT Children with Autism Spectrum Disorder (ASD) are often picky eaters, which can lead parents to suspect that their children might not be getting adequate amounts of vitamins and minerals. This sometimes leads parents of children with ASD to try nutritional supplements and dietary regimens such as gluten-free and casein-free (GFCF) diets without professional supervision. In the largest study of its kind, researchers report that these well-intentioned efforts can result in both insufficient nutrients and excessive nutrients. Despite supplementation, children with ASD still were deficient in calcium, for example, while some were consuming excessive amounts of vitamin A and other nutrients. |
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