ScienceDaily: Top News |
- Astronomers peer into galaxies' star-forming centers
- The tiger beetle: Too fast to see: Biologist looks into how the speedy predator pursues prey
- Thermomagnetic processing method provides path to new materials
- Who will come to your bird feeder in 2075?
- Mystery sea of stars? Rocket experiment finds surprising cosmic light
- Hungry bats compete for prey by jamming sonar
- Ancient DNA shows earliest European genomes weathered the Ice Age: Neanderthal interbreeding clues and a mystery human lineage
- Discovering the undiscovered: Advancing new tools to fill in the microbial tree of life
- New laws threaten Brazil's unique ecosystems
- Rare 2.5-billion-year-old rocks reveal hot spot of sulfur-breathing bacteria: Sulfur-dependent life forms thrived in oceans
- Landmark study on the evolution of insects
- Astronomy: Debris-strewn exoplanetary construction yards
- Transitions between states of matter: It’s more complicated, scientists find
- Nutrients that feed red tide 'under the microscope' in major study
- Koala study reveals clues about origins of the human genome
- Denying problems when we don't like the political solutions: Why conservatives, liberals disagree so vehemently
- Synthetic biology for space exploration
- Research resolves contradiction over protein's role at telomeres
- SCNT derived cells, IPS cells are similar, study finds
- Scientists create Parkinson's disease in a dish
- Human stem cell-derived neuron transplants reduce seizures in mice
- Body weight heavily influenced by gut microbes: Genes shape body weight by affecting gut microbes
- Human blood stem cells genetically 'edited'
- A cause of age-related inflammation found
- New knowledge about human brain's plasticity
- Images of a nearly invisible mouse
- Ghost illusion created in the lab
- First-in-class nasal spray demonstrates promise for migraine pain relief
- Transplant of stem-cell-derived dopamine neurons shows promise for Parkinson's disease
- Is violent injury a chronic disease? Study suggests so, and may aid efforts to stop the cycle
- Human body cannot be trained to maintain a higher metabolism, study suggests
- First peek at how neurons multitask
- Direct generation of neural stem cells could enable transplantation therapy
- Before there will be blood: Surprising role of protein in embryonic development
- From single cells to multicellular life: Researchers capture the emergence of multicellular life in real-time experiments
- New model to study epidemics developed
- Future air quality could put plants, people at risk
- Complete 9,000-year-old frozen bison mummy found in Siberia
- The dodo: New insights into an old bird
- New research adds spice to curcumin's health-promoting benefits
- New step in molecular pathway found responsible for neural tube defects, a birth defect that is increased in diabetic pregnancies
- Panel-powered car under development
- Golden approach to high-speed DNA reading
- Diagnostic exhalations could inform treatments
- Cockroach cyborgs use microphones to detect, trace sounds
- Jets, bubbles and bursts of light in Taurus
- Manipulating complex molecules by hand
- Engineers propose new approach to single-ventricle heart surgery for infants
- Exquisite ancient horse fossil preserves uterus with unborn foal
- Sorting bloodborne cancer cells to better predict spread of disease
- Omega-3 reduces smoking, study suggests
- Diversity outbred mice better predict potential human responses to chemical exposures
- Sustainability, astrobiology illuminate future of life in the universe and civilization on Earth
- Vegan diet best for weight loss even with carbohydrate consumption, study finds
- New airport security screening method more than 20 times as successful at detecting deception
- Cilia: Cellular extensions with a large effect
- Rabbit-proof hoof: Ungulates suppressed lagomorph evolution
- Tricky take-off kept pterodactyls grounded
- New bioenergetic organelle found in plants
- Tiger mosquito found in Andalusia thanks to a collaborative citizens' project
Astronomers peer into galaxies' star-forming centers Posted: 06 Nov 2014 01:51 PM PST |
The tiger beetle: Too fast to see: Biologist looks into how the speedy predator pursues prey Posted: 06 Nov 2014 12:29 PM PST |
Thermomagnetic processing method provides path to new materials Posted: 06 Nov 2014 12:23 PM PST |
Who will come to your bird feeder in 2075? Posted: 06 Nov 2014 11:38 AM PST |
Mystery sea of stars? Rocket experiment finds surprising cosmic light Posted: 06 Nov 2014 11:37 AM PST Using an experiment carried into space on a NASA suborbital rocket, astronomers have detected a diffuse cosmic glow that appears to represent more light than that produced by known galaxies in the universe. The discovery suggests that many such previously undetected stars permeate what had been thought to be dark spaces between galaxies, forming an interconnected sea of stars. |
Hungry bats compete for prey by jamming sonar Posted: 06 Nov 2014 11:37 AM PST |
Posted: 06 Nov 2014 11:37 AM PST A genome taken from a 36,000 skeleton reveals an early divergence of Eurasians once they had left Africa, and allows scientists to better assess the point at which 'admixture' -- or interbreeding -- between Eurasians and Neanderthals occurred. The latest research also points to a previously unknown population lineage as old as the first population separations since humans dispersed out of Africa. |
Discovering the undiscovered: Advancing new tools to fill in the microbial tree of life Posted: 06 Nov 2014 11:37 AM PST |
New laws threaten Brazil's unique ecosystems Posted: 06 Nov 2014 11:37 AM PST |
Posted: 06 Nov 2014 11:37 AM PST |
Landmark study on the evolution of insects Posted: 06 Nov 2014 11:37 AM PST An international team of more than 100 researchers has published the first modern roadmap of insect evolution. Understanding how insects are related uncovers their true ecological, economic, and medical importance, and, until now, has been largely unknown. The unprecedented results reconstruct the insect 'tree of life' and answer longstanding questions about the origins and evolution of insects. |
Astronomy: Debris-strewn exoplanetary construction yards Posted: 06 Nov 2014 11:35 AM PST Over the past few years, astronomers have found an incredible diversity in the architecture of exoplanetary systems, as well as the planets themselves. A survey using the sharp view of the Hubble Space Telescope has uncovered a similar diversity in the debris systems that coincide with the formation of exoplanets. These circumstellar dusty disks are likely generated by collisions between objects left over from planet formation around stars. The survey's results suggest that there is some sort of interdependence between a planet and the accompanying debris system. |
Transitions between states of matter: It’s more complicated, scientists find Posted: 06 Nov 2014 11:35 AM PST The seemingly simple process of phase changes -- those transitions between states of matter -- is more complex than previously known. New work reveals the need to rethink one of science's building blocks and, with it, how some of the basic principles underlying the behavior of matter are taught in our classrooms. |
Nutrients that feed red tide 'under the microscope' in major study Posted: 06 Nov 2014 10:23 AM PST The 'food' sources that support Florida red tides are more diverse and complex than previously realized, according to five years' worth of research on red tide and nutrients. The microbiology, physiology, ecology and physical oceanography factors affecting red tides were documented in new detail and suggestions for resource managers addressing red tide in the coastal waters of southwest Florida were offered. |
Koala study reveals clues about origins of the human genome Posted: 06 Nov 2014 10:23 AM PST Eight percent of your genome derives from retroviruses that inserted themselves into human sex cells millions of years ago. In a recent study, scientists discovered that 39 different koala retroviruses in a koala's genome were all endogenous, which means passed down to the koala from one parent or the other; one of the koala retroviruses was found in both parents. |
Posted: 06 Nov 2014 10:23 AM PST There may be a scientific answer for why conservatives and liberals disagree so vehemently over the existence of issues like climate change and specific types of crime. A new study finds that people will evaluate scientific evidence based on whether they view its policy implications as politically desirable. If they don't, then they tend to deny the problem even exists. |
Synthetic biology for space exploration Posted: 06 Nov 2014 10:23 AM PST |
Research resolves contradiction over protein's role at telomeres Posted: 06 Nov 2014 10:22 AM PST |
SCNT derived cells, IPS cells are similar, study finds Posted: 06 Nov 2014 10:22 AM PST A team of scientists compared induced pluripotent stem cells and embryonic stem cells created using somatic cell nuclear transfer. They found that the cells derived from these two methods resulted in cells with highly similar gene expression and DNA methylation patterns. Both methods also resulted in stem cells with similar amounts of DNA mutations, showing that the process of turning an adult cell into a stem cell introduces mutations independent of the specific method used. |
Scientists create Parkinson's disease in a dish Posted: 06 Nov 2014 10:22 AM PST A team of scientists created a human stem cell disease model of Parkinson's disease in a dish. Studying a pair of identical twins, one affected and one unaffected with Parkinson's disease, another unrelated Parkinson's patient, and four healthy control subjects, the scientists were able to observe key features of the disease in the laboratory, specifically differences in the patients' neurons' ability to produce dopamine, the molecule that is deficient in Parkinson's disease. |
Human stem cell-derived neuron transplants reduce seizures in mice Posted: 06 Nov 2014 10:22 AM PST Scientists have new evidence that stem cell transplantation could be a worthwhile strategy to help epileptics who do not respond to anti-seizure drugs. Most epileptic patients can be treated with anti-seizure drugs, which contain molecules that can inhibit electrical symptoms, similar to the normal function of interneurons. But about one-third do not benefit from existing medication. |
Body weight heavily influenced by gut microbes: Genes shape body weight by affecting gut microbes Posted: 06 Nov 2014 10:22 AM PST Our genetic makeup influences whether we are fat or thin by shaping which types of microbes thrive in our body, according to a new study. Scientists identified a specific, little known bacterial family that is highly heritable and more common in individuals with low body weight. This microbe also protected against weight gain when transplanted into mice. The results could pave the way for personalized probiotic therapies that are optimized to reduce the risk of obesity-related diseases based on an individual's genetic make-up. |
Human blood stem cells genetically 'edited' Posted: 06 Nov 2014 10:22 AM PST |
A cause of age-related inflammation found Posted: 06 Nov 2014 10:22 AM PST As animals age, their immune systems gradually deteriorate, a process called immunosenescence. It is associated with systemic inflammation and chronic inflammatory disorders, as well as with many cancers. The causes underlying this age-associated inflammation, and how it leads to diseases, are poorly understood. New work sheds light on one protein's involvement in suppressing immune responses in aging fruit flies. |
New knowledge about human brain's plasticity Posted: 06 Nov 2014 10:18 AM PST |
Images of a nearly invisible mouse Posted: 06 Nov 2014 10:18 AM PST A method that combines tissue decolorization and light-sheet fluorescent microscopy has been developed to take extremely detailed images of the interior of individual organs and even entire organisms. The work opens new possibilities for understanding the way life works -- the ultimate dream of systems biology -- by allowing scientists to make tissues and whole organisms transparent and then image them at extremely precise, single-cell resolution. |
Ghost illusion created in the lab Posted: 06 Nov 2014 10:18 AM PST |
First-in-class nasal spray demonstrates promise for migraine pain relief Posted: 06 Nov 2014 10:18 AM PST |
Transplant of stem-cell-derived dopamine neurons shows promise for Parkinson's disease Posted: 06 Nov 2014 10:18 AM PST Parkinson's disease is an incurable movement disorder that affects millions of people around the world, but current treatment options can cause severe side effects and lose effectiveness over time. In a new study, researchers showed that transplantation of neurons derived from human embryonic stem cells, hESCs, can restore motor function in a rat model of Parkinson's disease, paving the way for the use of cell replacement therapy in human clinical trials. |
Is violent injury a chronic disease? Study suggests so, and may aid efforts to stop the cycle Posted: 06 Nov 2014 10:15 AM PST |
Human body cannot be trained to maintain a higher metabolism, study suggests Posted: 06 Nov 2014 10:15 AM PST Researchers explored whether high- or low- protein diets might lead to less weight gain when consuming excess calories due to the ability of the body to burn extra energy with a high-protein diet. They found that study participants all gained similar amounts of weight regardless of diet composition; however, there was a vast difference in how the body stored the excess calories. Those who consumed normal- and high- protein diets stored 45% of the excess calories as lean tissue, or muscle mass, while those on the low-protein diet stored 95% of the excess calories as fat. |
First peek at how neurons multitask Posted: 06 Nov 2014 10:15 AM PST |
Direct generation of neural stem cells could enable transplantation therapy Posted: 06 Nov 2014 10:15 AM PST Induced neural stem cells (iNSCs) hold promise for therapeutic transplantation, but their potential in this capacity has been limited by failed efforts to maintain such cells in their multi-potent NSC state. Now, scientists have created iNSCs that remain in the multi-potent state—without ongoing expression of reprogramming factors. This allows the iNSCs to self-renew repeatedly to generate cells in quantities sufficient for therapy. |
Before there will be blood: Surprising role of protein in embryonic development Posted: 06 Nov 2014 10:15 AM PST |
Posted: 06 Nov 2014 08:33 AM PST All multicellular creatures are descended from single-celled organisms. The leap from unicellularity to multicellularity is possible only if the originally independent cells collaborate. So-called cheating cells that exploit the cooperation of others are considered a major obstacle. Now, researchers capture the emergence of multicellular life in real-time experiments. |
New model to study epidemics developed Posted: 06 Nov 2014 08:33 AM PST For decades, scientists have been perfecting models of how contagions spread, but newly published research takes the first steps toward a model that includes the interaction between individual human behavior and the behavior of the epidemic itself. The highly complex model accounts for the speed of modern communication and travel, both of which change contagion probability. The team hopes the model will more accurately guide travel restrictions and who should be vaccinated and isolated. |
Future air quality could put plants, people at risk Posted: 06 Nov 2014 08:33 AM PST |
Complete 9,000-year-old frozen bison mummy found in Siberia Posted: 06 Nov 2014 08:32 AM PST |
The dodo: New insights into an old bird Posted: 06 Nov 2014 08:32 AM PST The dodo is among the most famous extinct creatures, and a poster child for human-caused extinction events. Despite its notoriety, and the fact that the species was alive during recorded human history, little is known about how it lived, looked, and behaved. A new study of the only known complete skeleton from a single bird takes advantage of modern 3-D laser scanning technology to open a new window into the life of this famous extinct bird. |
New research adds spice to curcumin's health-promoting benefits Posted: 06 Nov 2014 08:32 AM PST |
Posted: 06 Nov 2014 08:32 AM PST A molecular pathway responsible for neural tube defects in diabetic pregnancies has been discovered by scientists. For 20 years, scientists have known of a gene involved in neural tube defects (such as spina bifida), but until now it was not known exactly what causes this gene to malfunction during diabetic pregnancies. |
Panel-powered car under development Posted: 06 Nov 2014 07:42 AM PST |
Golden approach to high-speed DNA reading Posted: 06 Nov 2014 07:42 AM PST High-speed reading of the genetic code should get a boost with the creation of the world's first graphene nanopores -- pores measuring approximately 2 nanometers in diameter -- that feature a "built-in" optical antenna. Researchers have invented a simple, one-step process for producing these nanopores in a graphene membrane using the photothermal properties of gold nanorods. |
Diagnostic exhalations could inform treatments Posted: 06 Nov 2014 07:42 AM PST By analyzing carbon dioxide in the breath, an algorithm could help determine how to treat patients. The algorithm determines whether a patient is suffering from emphysema or heart failure based on readings from a capnograph -- a machine that measures the concentration of carbon dioxide in a patient's exhalations. |
Cockroach cyborgs use microphones to detect, trace sounds Posted: 06 Nov 2014 07:40 AM PST |
Jets, bubbles and bursts of light in Taurus Posted: 06 Nov 2014 07:40 AM PST The NASA/ESA Hubble Space Telescope has snapped a striking view of a multiple star system called XZ Tauri, its neighbour HL Tauri, and several nearby young stellar objects. XZ Tauri is blowing a hot bubble of gas into the surrounding space, which is filled with bright and beautiful clumps that are emitting strong winds and jets. These objects illuminate the region, creating a truly dramatic scene. |
Manipulating complex molecules by hand Posted: 06 Nov 2014 07:40 AM PST Scientists have developed a new control technique for scanning probe microscopes that enables the user to manipulate large single molecules interactively using their hands. Until now, only simple and inflexibly-programmed movements were possible. To test their method, the researchers 'stenciled' a word into a molecular monolayer by removing 47 molecules. The process opens up new possibilities for the construction of molecular transistors and other nanocomponents. |
Engineers propose new approach to single-ventricle heart surgery for infants Posted: 06 Nov 2014 07:40 AM PST Engineers are proposing a new surgical intervention for children born with a single ventricle in their heart -- instead of the usual two. The new approach would potentially reduce the number of surgeries the patients have to undergo in the first six months of life from two to just one. If successful, it would also create a more stable circuit for blood to flow. |
Exquisite ancient horse fossil preserves uterus with unborn foal Posted: 06 Nov 2014 07:40 AM PST A specimen of the ancient horse Eurohippus messelensis has been discovered in Germany that preserves a fetus as well as parts of the uterus and associated tissues. It demonstrates that reproduction in early horses was very similar to that of modern horses, despite great differences in size and structure. |
Sorting bloodborne cancer cells to better predict spread of disease Posted: 06 Nov 2014 07:39 AM PST |
Omega-3 reduces smoking, study suggests Posted: 06 Nov 2014 07:19 AM PST Taking omega-3 supplements reduces craving for nicotine and even reduces the number of cigarettes that people smoke a day, a new study suggests. "The substances and medications used currently to help people reduce and quit smoking are not very effective and cause adverse effects that are not easy to cope with. The findings of this study indicated that omega-3, an inexpensive and easily available dietary supplement with almost no side effects, reduces smoking significantly," said the study's lead investigator. |
Diversity outbred mice better predict potential human responses to chemical exposures Posted: 06 Nov 2014 07:17 AM PST A genetically diverse mouse model is able to predict the range of response to chemical exposures that might be observed in human populations, researchers have found. Like humans, each Diversity Outbred mouse is genetically unique, and the extent of genetic variability among these mice is similar to the genetic variation seen among humans. |
Sustainability, astrobiology illuminate future of life in the universe and civilization on Earth Posted: 06 Nov 2014 07:17 AM PST Two astrophysicists argue that questions about the future of life on Earth and beyond may soon be resolvable scientifically, thanks to new data about the Earth and about other planets in our galaxy, and by combining the earth-based science of sustainability with the space-oriented field of astrobiology. |
Vegan diet best for weight loss even with carbohydrate consumption, study finds Posted: 06 Nov 2014 07:17 AM PST |
New airport security screening method more than 20 times as successful at detecting deception Posted: 06 Nov 2014 05:30 AM PST |
Cilia: Cellular extensions with a large effect Posted: 06 Nov 2014 05:29 AM PST |
Rabbit-proof hoof: Ungulates suppressed lagomorph evolution Posted: 06 Nov 2014 05:29 AM PST Rodents and rabbits are sister groups, but while rodents have diversified to over 2,000 living species and an enormous range of body sizes, lagomorphs (rabbits, hares, and pikas) are limited to fewer than 100 relatively small species. A new study shows, surprisingly, that competition with ungulates -- hoofed mammals -- intensified by climate change, are to blame for the lagomorphs' limited diversity. |
Tricky take-off kept pterodactyls grounded Posted: 06 Nov 2014 05:29 AM PST |
New bioenergetic organelle found in plants Posted: 06 Nov 2014 05:26 AM PST |
Tiger mosquito found in Andalusia thanks to a collaborative citizens' project Posted: 06 Nov 2014 05:26 AM PST Thanks to a mobile phone app, the tiger mosquito has been discovered for the first time to be present in Andalusia. The insect transmits diseases like chikungunya and dengue fever. This was made possible by public participation via the "AtrapaelTigre.com" app and subsequent verification by entomologists collaborating in the project. |
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