ScienceDaily: Top News

---

• Interplanetary dust particles could deliver water and organics to jump-start life on Earth
• Impulsive personality linked to food addiction
• New study changes conceptions about the determinants of skull development and form
• Psychologists document the age our earliest memories fade
• Study expands cancer genomics universe
• Do doctors spend too much time looking at computer screen?
• One good tern deserves another: Low-power, remote monitoring of island birds cuts bills
• Aspirin intake may stop growth of tumors that cause hearing loss
• When hospitals share patient records, emergency patients benefit, study suggests
• Sequence of water buffalo completed
• Mars could have supported life: Ten years on Mars leads to livable mud
• Material developed could speed up underwater communications by orders of magnitude
• 40 percent of parents learn how to use technology from their children
• Simple amoeba holds the key to better treatment for Alzheimer's disease
• The scent of cancer: Detecting cancer with fruit fly's antenna
• Looking inside food microstructures
• Mining no shortcut for economic independence for Greenland, report suggests
• Rainforests in Far East shaped by humans for the last 11,000 years
• Plant scientists unravel a molecular switch to stimulate leaf growth
• The shape of infectious prions
• New computer model may aid personalized cancer care
• 3-D Graphene: Super-capacitors from sugar bubbles
• Generation blame: How age affects our views of anti-social behavior
• Can walking the dogs show who's the leader of the pack?
• Evolution of drug resistance within a HIV population
• The rocky road to a better flu vaccine
• A thousand years ago, Central Europeans digested milk as well as us today
• Lab-grown, virus-free stem cells repair retinal tissue in mice
• Are developing heart valves sensitive to environmental chemicals?
• Research shows gap in care for childhood cancer survivors
• Depression symptoms, emotional support impact PTSD treatment progress, study finds
• Liars find it more rewarding to tell truth than fib when deceiving others
• Gap in life expectancy between rural, urban residents is growing
• Moderate doses of radiation therapy to unaffected breast may prevent second breast cancers
• Donors should have access to their own raw data provided to biobanks
• Key pathway for plant cell growth identified
• Captive breeding no help to endangered woodrat
• Salmonella infection mitigates asthma
• A new wrinkle in the control of waves: Flexible materials could provide new ways to control sound and light

Interplanetary dust particles could deliver water and organics to jump-start life on Earth Posted: 24 Jan 2014 01:12 PM PST Researchers have discovered that interplanetary dust particles could deliver water and organics to the Earth and other terrestrial planets. "It is a thrilling possibility that this influx of dust has acted as a continuous rainfall of little reaction vessels containing both the water and organics needed for the eventual origin of life on Earth and possibly Mars," said Hope Ishii, study co-author.

Impulsive personality linked to food addiction Posted: 24 Jan 2014 01:12 PM PST The same kinds of impulsive behavior that lead some people to abuse alcohol and other drugs may also be an important contributor to an unhealthy relationship with food, according to new research.

New study changes conceptions about the determinants of skull development and form Posted: 24 Jan 2014 01:12 PM PST A new study offers surprising insights into dietary influences on the growing skull.

Psychologists document the age our earliest memories fade Posted: 24 Jan 2014 10:57 AM PST Although infants use their memories to learn new information, few adults can remember events in their lives that happened prior to the age of three. Psychologists have now documented that age seven is when these earliest memories tend to fade into oblivion, a phenomenon known as "childhood amnesia." The study is the first empirical demonstration of the onset of childhood amnesia, and involved interviewing children about past events in their lives.

Study expands cancer genomics universe Posted: 24 Jan 2014 08:57 AM PST By analyzing the genomes of thousands of patients' tumors, a research team has discovered many new cancer genes -- expanding the list of known genes tied to these cancers by 25 percent. The team's work, which lays a critical foundation for future cancer drug development, also shows that creating a comprehensive catalog of cancer genes for scores of cancer types is feasible with as few as 100,000 patient samples.

Do doctors spend too much time looking at computer screen? Posted: 24 Jan 2014 08:57 AM PST When physicians spend too much time looking at the computer screen in the exam room, nonverbal cues may get overlooked and affect doctors' ability to pay attention and communicate with patients, according to a study.

One good tern deserves another: Low-power, remote monitoring of island birds cuts bills Posted: 24 Jan 2014 08:11 AM PST A new report reveals details of an energy-efficient system for monitoring wild birds that reduces power consumption without significantly compromising image quality.

Aspirin intake may stop growth of tumors that cause hearing loss Posted: 24 Jan 2014 08:07 AM PST Researchers have demonstrated, for the first time, that Aspirin intake correlates with halted growth of vestibular schwannomas (also known as acoustic neuromas), a sometimes lethal intracranial tumor that typically causes hearing loss and tinnitus.

When hospitals share patient records, emergency patients benefit, study suggests Posted: 24 Jan 2014 07:19 AM PST As hospitals and doctors' offices across the country race to join online systems that let them share medical information securely, a new study suggests that these systems may already be helping cut unnecessary care. Fewer emergency patients got repeated medical scans when they went to a hospital that takes part in a health information exchange,according to new findings.

Sequence of water buffalo completed Posted: 24 Jan 2014 07:18 AM PST Scientists have completed the genome sequencing of water buffalo. The outstanding work lays an important foundation for molecular breeding of water buffalo, and sheds new light on the understanding of its origin and domestication process.

Mars could have supported life: Ten years on Mars leads to livable mud Posted: 24 Jan 2014 06:37 AM PST Some of the oldest minerals ever analyzed by NASA's Mars Opportunity Rover show that around four billion years ago Mars had liquid water so fresh it could have supported life.

Material developed could speed up underwater communications by orders of magnitude Posted: 24 Jan 2014 06:37 AM PST Electrical engineering professors have taken the first steps in a project to develop fast-blinking LED systems for underwater optical communications. Scientists have shown that an artificial metamaterial can increase the light intensity and "blink speed" of a fluorescent light-emitting dye molecule.

40 percent of parents learn how to use technology from their children Posted: 24 Jan 2014 05:27 AM PST Scientists have found that youth influence their parents in all technologies studied (computer, mobile Internet, social networking) up to 40 percent of the time. The children's scores were higher compared to parents, showing that parents don't necessarily recognize the influence.

Simple amoeba holds the key to better treatment for Alzheimer's disease Posted: 24 Jan 2014 05:27 AM PST Scientists have discovered the use of a simple single-celled amoeba to understand the function of human proteins in causing Alzheimer's disease.

The scent of cancer: Detecting cancer with fruit fly's antenna Posted: 24 Jan 2014 05:27 AM PST Researchers have, for the first time, detected cancer cells using the olfactory senses of fruit flies.

Looking inside food microstructures Posted: 24 Jan 2014 05:27 AM PST Applying imaging techniques to food structure is helping scientists devise ways of improving the quality of processed food.

Mining no shortcut for economic independence for Greenland, report suggests Posted: 24 Jan 2014 05:26 AM PST Contrary to the hopes of many Greenlandic lawmakers, mineral and oil extraction is no shortcut for the country to obtain economic independence from the Kingdom of Denmark, a new report suggests.

Rainforests in Far East shaped by humans for the last 11,000 years Posted: 24 Jan 2014 05:26 AM PST New research shows that the tropical forests of South East Asia have been shaped by humans for the last 11,000 years. The rain forests of Borneo, Sumatra, Java, Thailand and Vietnam were previously thought to have been largely unaffected by humans, but the latest research suggests otherwise.

Plant scientists unravel a molecular switch to stimulate leaf growth Posted: 24 Jan 2014 05:26 AM PST Cell division is essential for growth and development of all multicellular organisms. In plants, leaf growth consists of two different phases. A first phase is characterized by intense cell division, which leads to the formation of many new cells. During the second phase, cell division activity declines, the cells elongate and acquire a certain expertise. Biologists have now identified a molecular switch that stimulates leaf growth.

The shape of infectious prions Posted: 24 Jan 2014 05:26 AM PST Prions are unique infective agents -- unlike viruses, bacteria, fungi and other parasites, prions do not contain either DNA or RNA. Despite their seemingly simple structure, they can propagate their pathological effects like wildfire, by "infecting" normal proteins. PrPSc (the pathological form of the prion protein) can induce normal prion proteins (PrPC) to acquire the wrong conformation and convert into further disease-causing agents.

New computer model may aid personalized cancer care Posted: 24 Jan 2014 05:23 AM PST Scientists have developed a mathematical model to predict how a patient's tumor is likely to behave and which of several possible treatments is most likely to be effective.

3-D Graphene: Super-capacitors from sugar bubbles Posted: 24 Jan 2014 05:23 AM PST Graphene sheets are immensely strong, lightweight and excellent at conducting electricity. Theoretically, macroscopical three-dimensional graphene assemblies should retain the properties of nanoscale graphene flakes. However, recent attempts to make 3-D graphene have resulted in weak conductivity due to poor contact between graphene sheets. Loss of strength is also a problem, and self-supporting 3-D graphene has not yet been produced.

Generation blame: How age affects our views of anti-social behavior Posted: 23 Jan 2014 07:23 PM PST Research reveals disconnect between what adults and young people interpret as anti-social behavior (ASB), as 40 percent of adults see young people gathering in public as ASB. Study is the first to directly compare teenage perceptions of ASB with those of adults.

Can walking the dogs show who's the leader of the pack? Posted: 23 Jan 2014 07:20 PM PST Dogs' paths during group walks could be used to determine leadership roles and through that their social ranks and personality traits, say researchers. Using high-resolution GPS harnesses, scientists tracked the movements of six dogs and their owner across 14 30-40 minute walks off the lead. The dogs' movements were measurably influenced by underlying social hierarchies and personality differences.

Evolution of drug resistance within a HIV population Posted: 23 Jan 2014 07:20 PM PST A new study found that in some patients a resistance mutation to a particular drug appeared in a single virus particle, which then rapidly proliferated until the entire viral population within the patient consisted of its progeny and was also resistant to the drug. In other patients the same resistance mutation occurred in multiple viral particles within a short window of time, which led to a more heterogeneous, but still drug-resistant, viral population.

The rocky road to a better flu vaccine Posted: 23 Jan 2014 07:20 PM PST Currently approved flu vaccines are less effective in the elderly, yet an estimated 90 percent of influenza-related deaths occur in people over 65.

A thousand years ago, Central Europeans digested milk as well as us today Posted: 23 Jan 2014 07:19 PM PST Back in the Middle Ages, Central Europeans were already capable of digesting milk, yogurt and cheese just as well as most people of European descent are today. Researchers have discovered that the population of the medieval town of Dalheim had a similar genetic predisposition for milk digestion to present-day Germans and Austrians. Moreover, the study reveals that lactose tolerance was more widespread than previously believed.

Lab-grown, virus-free stem cells repair retinal tissue in mice Posted: 23 Jan 2014 07:19 PM PST Investigators have developed human induced-pluripotent stem cells (iPSCs) capable of repairing damaged retinal vascular tissue in mice. The stem cells, derived from human umbilical cord-blood and coaxed into an embryonic-like state, were grown without the conventional use of viruses, which can mutate genes and initiate cancers, according to the scientists. Their safer method of growing the cells paves the way for a stem cell bank of cord-blood derived iPSCs to advance regenerative medicine research.

Are developing heart valves sensitive to environmental chemicals? Posted: 23 Jan 2014 01:18 PM PST Exposure to environmental endocrine disrupters, such as bisphenol A, which mimic estrogen, is associated with adverse health effects. Bisphenol A is commonly found in plastic bottles and plastic food containers. New research from on the effects of these chemicals on zebrafish shows that embryonic heart valves could be particularly in danger.

Research shows gap in care for childhood cancer survivors Posted: 23 Jan 2014 01:18 PM PST A recent study shows that many internists feel ill-equipped to care for adult patients who are childhood cancer survivors.

Depression symptoms, emotional support impact PTSD treatment progress, study finds Posted: 23 Jan 2014 12:48 PM PST Researchers found that during PTSD treatments, rapid improvements in depression symptoms are associated with better outcomes.

Liars find it more rewarding to tell truth than fib when deceiving others Posted: 23 Jan 2014 12:47 PM PST A report based on two neural imaging studies that monitored brain activity has found individuals are more satisfied to get a reward from telling the truth rather than getting the same reward through deceit.

Gap in life expectancy between rural, urban residents is growing Posted: 23 Jan 2014 12:47 PM PST A new study finds that rural American residents have experienced smaller gains in life expectancy than their urban counterparts and the gap continues to grow.

Moderate doses of radiation therapy to unaffected breast may prevent second breast cancers Posted: 23 Jan 2014 11:20 AM PST Survivors of breast cancer have a one in six chance of developing breast cancer in the other breast. But a study conducted in mice suggests that survivors can dramatically reduce that risk through treatment with moderate doses of radiation to the unaffected breast at the same time that they receive radiation therapy to their affected breast. The treatment, if it works as well in humans as in mice, could prevent tens of thousands of second breast cancers.

Donors should have access to their own raw data provided to biobanks Posted: 23 Jan 2014 11:20 AM PST Scientists have called for data held in biobanks to be made accessible to the people donating material and data to them.

Key pathway for plant cell growth identified Posted: 23 Jan 2014 11:17 AM PST For plants, the only way to grow is for cells to expand. Unlike animals, cell division in plants happens only within a tiny region of the root and stem apex, making cell expansion the critical path to increased stature. Now, a team of scientists reports the discovery of a hormone and receptor that control cell expansion in plants.

Captive breeding no help to endangered woodrat Posted: 23 Jan 2014 10:31 AM PST Captive breeading and release program does not help save the federally endangered Key Largo woodrat, a new study shows.

Salmonella infection mitigates asthma Posted: 23 Jan 2014 09:59 AM PST Researchers have identified the mechanism by which Salmonella infections can reduce the incidence of asthma in mice. The research opens up new avenues of research that could lead to treatments.

A new wrinkle in the control of waves: Flexible materials could provide new ways to control sound and light Posted: 23 Jan 2014 09:59 AM PST Flexible, layered materials textured with nanoscale wrinkles could provide a new way of controlling the wavelengths and distribution of waves, whether of sound or light. The new method could eventually find applications from nondestructive testing of materials to sound suppression, and could also provide new insights into soft biological systems and possibly lead to new diagnostic tools.

You are subscribed to email updates from All Top News -- ScienceDaily To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610