ScienceDaily: Latest Science News

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• Rabbit virus improves bone marrow transplants, kills some cancer cells
• Autologous stem cell therapy helpful in traumatic brain injury
• Moving sector walls on the nano scale
• Why good people do bad things
• Top salads with eggs to better absorb vegetables' carotenoids
• Babies who can resettle are more likely to 'sleep through the night'
• Paleo-engineering: Complexity of triceratops' teeth revealed
• Strokes steal eight years' worth of brain function, new study suggests
• Small vortex on wing makes the elegance of birds' flight
• Unlocking nanofibers' potential
• Next-generation illumination using silicon quantum dot-based white-blue LED
• Biochemists devise snappy new technique for blueprinting cell membrane proteins
• Researchers design the most precise quantum thermometer to date
• Teachers' health: Healthy heart, stressed psyche
• Good eyes but poor vision: An indistinct world for one in 20
• An initiation mechanism for dendritic spines discovered
• Powerful people are quick to notice injustice when they are victimized, research finds
• Tin follows zinc: Stretchable ceramics made by flame technology
• Ladybird colors reveal their toxicity
• Researchers targeting host rather than flu virus have success with new treatment in mice
• Personality shapes the way our brains react to eye contact
• Memory loss among the elderly is lower than what was originally thought
• Archaeologists discover evidence of prehistoric gold trade route
• Missing teeth predict cardiovascular events
• Clean streets: Innovative hybrid-electric powertrain for road sweepers
• New study shows the dynamics of active swarms in alternating fields
• New hope in the fight against tuberculosis
• Varicella-zoster virus: Using embryonic stem cells to test drugs
• Few opportunities to change: Ocean warming, oxygen loss putting marine life under increasing pressure
• Stricter limits for ozone pollution would boost need for science, measurements
• Food labels nudge diners to eat healthier
• Despite abnormalities after concussion, sleep continues to aid memory and recall
• Preventive neuroradiology: Brain imaging bolsters efforts to lower Alzheimer's risk
• Parent-reported symptoms gauge features of the food allergic disease eosinophilic esophagitis
• Researchers pilot predictive medicine by studying healthy people's DNA

Rabbit virus improves bone marrow transplants, kills some cancer cells Posted: 05 Jun 2015 03:29 PM PDT For patients with blood cancers such as leukemia and multiple myeloma, a bone marrow transplant can be both curative and perilous. It replenishes marrow lost to disease or chemotherapy but raises the risk that newly transplanted white blood cells will attack the recipient's body. Now researcher have found that a rabbit virus can deliver a one-two punch, killing some kinds of cancer cells while eliminating a common and dangerous complication of bone marrow transplants.

Autologous stem cell therapy helpful in traumatic brain injury Posted: 05 Jun 2015 03:29 PM PDT The use of cell therapy after traumatic brain injury in children can reduce the amount of therapeutic interventions needed to treat the patient, as well as the amount of time the child spends in neurointensive care, according to research.

Moving sector walls on the nano scale Posted: 05 Jun 2015 03:29 PM PDT Scientists are able to visualize and selectively modify the internal order of an intensively researched class of materials known as multiferroics. This opens the door to promising applications in electronics. The researchers are particularly interested in the walls of the ordered sections.

Why good people do bad things Posted: 05 Jun 2015 03:28 PM PDT When facing an ethical dilemma, being aware of the temptation before it happens and thinking about the long-term consequences of misbehaving could help more people do the right thing, according to a new study.

Top salads with eggs to better absorb vegetables' carotenoids Posted: 05 Jun 2015 03:28 PM PDT Adding eggs to a salad with a variety of raw vegetables is an effective method to improve the absorption of carotenoids, which are fat-soluble nutrients that help reduce inflammation and oxidative stress, according to research.

Babies who can resettle are more likely to 'sleep through the night' Posted: 05 Jun 2015 03:28 PM PDT Young infants who can 'resettle' themselves after waking up are more likely to sleep for prolonged periods at night, according to a video study. The researchers also looked for times when the infants woke up but were able to "resettle autonomously"--to go back to sleep without parental involvement.

Paleo-engineering: Complexity of triceratops' teeth revealed Posted: 05 Jun 2015 03:19 PM PDT When it comes to the three-horned dinosaur called the Triceratops, science is showing the ancient creatures might have been a little more complex than we thought. In fact, their teeth were far more intricate than any reptile or mammal living today.

Strokes steal eight years' worth of brain function, new study suggests Posted: 05 Jun 2015 03:19 PM PDT Having a stroke ages a person's brain function by almost eight years, new research finds -- robbing them of memory and thinking speed as measured on cognitive tests. In both black and white patients, having had a stroke meant that their score on a 27-item test of memory and thinking speed had dropped as much as it would have if they had aged 7.9 years overnight.

Small vortex on wing makes the elegance of birds' flight Posted: 05 Jun 2015 07:30 AM PDT Birds use a thumb-like structure on the wing to create a small vortex which makes their turns and landings smooth, new research shows. This is the first time that researchers have found evidence that the effect of the alula is due to a small vortex formed at the tip of the alula feathers.

Unlocking nanofibers' potential Posted: 05 Jun 2015 07:30 AM PDT Researchers describe a new technique for producing nanofibers that increases the rate of production fourfold while reducing energy consumption by more than 90 percent, holding out the prospect of cheap, efficient nanofiber production.

Next-generation illumination using silicon quantum dot-based white-blue LED Posted: 05 Jun 2015 07:29 AM PDT An Si quantum dot (QD)-based hybrid inorganic/organic light-emitting diode (LED) that exhibits white-blue electroluminescence has been fabricated researchers. A hybrid LED is expected to be a next-generation illumination device for producing flexible lighting and display, and this is achieved for the Si QD-based white-blue LED.

Biochemists devise snappy new technique for blueprinting cell membrane proteins Posted: 05 Jun 2015 07:29 AM PDT Biochemists have devised a new technique that will make the job of blueprinting certain proteins considerably faster, cheaper and easier. The breakthrough will make a big splash in the field of drug discovery and development, where protein blueprints help researchers understand how individual proteins work and allow drug developers to draw up specific battle plans in the fight against diseases and infections.

Researchers design the most precise quantum thermometer to date Posted: 05 Jun 2015 07:28 AM PDT Physics have found the "formula" to construct a quantum thermometer with enough precision to detect minute fluctuations in temperature in regions as small as the inside of a cell.

Teachers' health: Healthy heart, stressed psyche Posted: 05 Jun 2015 07:28 AM PDT As a result of their work, teachers suffer psychosomatic disorders such as exhaustion, fatigue, and headaches more frequently than other occupational groups, claims a new report.

Good eyes but poor vision: An indistinct world for one in 20 Posted: 05 Jun 2015 07:28 AM PDT Extremely poor vision can be caused by strabismus in early childhood or by a displaced optical axis. Amblyopia is caused not by organic damage to the eyes but by the brain incorrectly fitting together the images the eyes provide. As a result, the ability to see an object in sharp focus is severely limited. This occurs in more than one in 20 people, researchers report. The authors' study analyzed the visual acuity of over 3200 German individuals aged between 35 and 44 years and determined the frequency and causes of amblyopia.

An initiation mechanism for dendritic spines discovered Posted: 05 Jun 2015 06:14 AM PDT An initiation mechanism illuminates the molecular processes involved in learning and cognitive dysfunction. The discovery is important, as most of the neuronal connections, called synapses, are build to dendritic spines. In many central nervous system diseases, the dendritic spine density is altered.

Powerful people are quick to notice injustice when they are victimized, research finds Posted: 05 Jun 2015 06:14 AM PDT Power is accompanied by a sense of entitlement, which shapes reactions to self-relevant injustices. Researchers have found that the powerless are comparatively less sensitive to unfair treatment, suggesting a process by which hierarchies may be maintained: the powerful retain their social standing by quickly perceiving and responding to self-relevant injustices.

Tin follows zinc: Stretchable ceramics made by flame technology Posted: 05 Jun 2015 06:14 AM PDT Scientists have successfully been able to transfer the experience from furnace to laboratory while synthesizing nanoscale materials using simple and highly efficient flame technology. This "baking" of nanostructures has already been a great success using zinc oxide. The recent findings concentrate on tin oxide, which opens up a wide field of possible new applications.

Ladybird colors reveal their toxicity Posted: 05 Jun 2015 05:16 AM PDT For one of Britain's best-loved and colorful group of insects, ladybirds, the brightness of their color reveals the extent of their toxicity to predators, according to new research. Although red ladybirds with black spots are most familiar, ladybirds are a diverse group of species and come in many different colors and patterns, from yellow and orange to even camouflaged browns.

Researchers targeting host rather than flu virus have success with new treatment in mice Posted: 05 Jun 2015 05:16 AM PDT People who die from the flu actually die from respiratory failure. A curious researcher wondered what would happen if someone developed a treatment that would prevent blood vessels from leaking into the lungs, and focused study on that.

Personality shapes the way our brains react to eye contact Posted: 05 Jun 2015 05:16 AM PDT Eye contact plays a crucial role when people initiate interaction with other people. If people look each other in the eye, they automatically send a signal that their attention is focused on the other person. If the other person happens to look back, the two will be in eye contact, and a channel for interaction is opened. Some research has suggested that eye contact triggers patterns of brain activity associated with approach motivation, whereas seeing another person with his or her gaze averted triggers brain activity associated with avoidance motivation. However, many people find it discomforting and may even experience high levels of anxiety when they are the focus of someone's gaze. Now researchers have set out to study what lies underneath these individual psychological differences.

Memory loss among the elderly is lower than what was originally thought Posted: 05 Jun 2015 05:16 AM PDT The capacity to recall specific facts deteriorates with age, but other types of memory do not, new research suggests. Elderly people remember fewer specific details than younger people and, in general, both groups retain concrete information about events experienced better than abstract information. The main difference is to be found in the capacity to remember more distant facts: youngsters remember them better.

Archaeologists discover evidence of prehistoric gold trade route Posted: 05 Jun 2015 05:16 AM PDT Archaeologists have found evidence of an ancient gold trade route between the south-west of the UK and Ireland. A study suggests people were trading gold between the two countries as far back as the early Bronze Age (2500 BC).

Missing teeth predict cardiovascular events Posted: 05 Jun 2015 05:16 AM PDT Advanced tooth loss often indicates that a person has a history of inflammatory oral diseases. In an extensive cohort study, it was shown that tooth loss associate with future cardiovascular events, diabetes and death.

Clean streets: Innovative hybrid-electric powertrain for road sweepers Posted: 05 Jun 2015 05:16 AM PDT Sweepers keep our pavements, paths and roads clean. For this purpose they are equipped with a powertrain for moving the vehicle, a blower for sucking up the dirt and debris and brushes for cleaning the ground. Researchers have now designed an electric hybrid sweeper. Compared to a conventional diesel-powered road sweeper, the electric hybrid sweeper driven by natural gas consumes less than half as much energy during the standard cycle for sweeping vehicles.

New study shows the dynamics of active swarms in alternating fields Posted: 05 Jun 2015 05:16 AM PDT The dynamics of active swarms have been studied using computer simulations and experiments on unicellular algae. The team not only found full analogy of the active motion in a field to magnetic hysteresis but also managed to quantify the controllability of the swarm and identify the signatures of collective behavior of the active agents.

New hope in the fight against tuberculosis Posted: 04 Jun 2015 01:25 PM PDT Scientists have discovered a new target for the fight against multi-resistant mycobacteria, from a rejuvenated antibiotic series. Mycobacterium tuberculosis is the main cause of tuberculosis. The treatment for drug-susceptible tuberculosis consists of the daily administration of multiple drugs for a minimum of six months. Lack of adherence to this regimen can result in treatment failure and the emergence of drug resistance.

Varicella-zoster virus: Using embryonic stem cells to test drugs Posted: 04 Jun 2015 01:25 PM PDT Scientists report on a novel experimental model that, for the first time, successfully mimics the 'sleeping' and 'waking' of the varicella-zoster virus. Based on neurons generated from human embryonic stem cells, and not requiring the use of experimental animals, the model allows scientists to test drugs and develop therapies to prevent shingles. It may also contribute to the fight against other viruses -- such as herpes and polio -- that target the human nervous system.

Few opportunities to change: Ocean warming, oxygen loss putting marine life under increasing pressure Posted: 04 Jun 2015 01:24 PM PDT If you want to live, you need to breathe and muster enough energy to move, find nourishment and reproduce. This basic tenet is just as valid for us human beings as it is for the animals inhabiting our oceans. Unfortunately, most marine animals will find it harder to satisfy these criteria, which are vital to their survival, in the future.

Stricter limits for ozone pollution would boost need for science, measurements Posted: 04 Jun 2015 01:24 PM PDT A tougher federal standard for ozone pollution, under consideration to improve public health, would ramp up the importance of scientific measurements and models, according to a new report.

Food labels nudge diners to eat healthier Posted: 04 Jun 2015 01:22 PM PDT When people know the calories and fat content in foods, they lean toward healthier fare, a study of food labels in dining halls shows. Despite municipal and federal legislation in the pipelines for large restaurants and dining facilities to put labels on their foods, there was very little hard data to show such labels are effective in helping people make healthier food choices, until now, the researchers say.

Despite abnormalities after concussion, sleep continues to aid memory and recall Posted: 04 Jun 2015 11:18 AM PDT After a concussion, a person can be left with disturbed sleep, memory deficits and other cognitive problems for years, but a new study suggests that despite these abnormalities, sleep still helps them to overcome memory deficits, and the benefit is equivalent to that seen in individuals without a history of mild traumatic brain injury, also known as concussion.

Preventive neuroradiology: Brain imaging bolsters efforts to lower Alzheimer's risk Posted: 04 Jun 2015 11:18 AM PDT Armed with new knowledge about how neurodegenerative diseases alter brain structures, increasing numbers of neurologists, psychiatrists and other clinicians are adopting quantitative brain imaging as a tool to measure and help manage cognitive declines in patients. These imaging findings can help spur beneficial lifestyle changes in patients to reduce risk for Alzheimer's disease.

Parent-reported symptoms gauge features of the food allergic disease eosinophilic esophagitis Posted: 04 Jun 2015 11:18 AM PDT Researchers have identified that parent-reported responses to a questionnaire called the Pediatric Eosinophilic Esophagitis Symptom Score correspond to clinical and biologic features of eosinophilic esophagitis -- a severe and often painful food allergy that renders children unable to eat a wide variety of foods.

Researchers pilot predictive medicine by studying healthy people's DNA Posted: 04 Jun 2015 11:18 AM PDT Scientists have turned traditional genomics research on its head. Instead of trying to find a mutation in the genome of a person with a genetic disease, they sequenced the genomes of healthy participants, and then analyzed the data to find presumed mutations that would almost certainly lead to a genetic condition. Of nearly 1,000 volunteers whose genomes were examined, about 100 had variants predicting a rare disease. Almost half actually had the disease.

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