ScienceDaily: Latest Science News

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• Poor mental health leads to unhealthy behaviors among low-income adults
• DNA reveals mating patterns of critically endangered sea turtle
• Security protocol for online banking and Facebook has ‘serious weaknesses,’ say researchers
• Milestone of cancer research: Arresting cancers rather than killing them
• World's first image of Grey Friars skull unveiled
• Plant scientists demonstrate new means of boosting maize yields
• Synthetic biology: Recreating natural complex gene regulation
• Growth factor aids stem cell regeneration after radiation damage
• Immune cell 'survival' gene key to better myeloma treatments
• Changes to DNA on-off switches affect cells' ability to repair breaks, respond to chemotherapy
• Understanding Earth’s climate prior to the industrial era
• Pioneering research helps to unravel the brain's vision secrets
• Mutations linked to relapse of childhood leukemia discovered
• Drug manufacture: Going green with iron
• Gene therapy: Editing out genetic damage
• Photonics: On track for downsizing
• Semiconductor physics: Taking control of spin
• BrailleWise, aircraft toilet: Making air travel easier for visually impaired people
• Designer babies may explain insect sociality
• Caught in the act: Researchers capture key moments in cell death
• Prescription overdose rate reaches epidemic levels in NYC

Poor mental health leads to unhealthy behaviors among low-income adults Posted: 03 Feb 2013 06:24 PM PST A new study says binge drinking, smoking, and illegal drug use may be used to cope with depression and anxiety. Poor mental health leads to unhealthy behaviors in low-income adults - not the other way around, according to a new study. In this study, stress and anxiety predicted subsequent health-compromising behaviors, such as smoking, binge drinking, illegal drug use, unprotected sex and unhealthy diets. One possible explanation for these findings is that health compromising behaviors may be used as coping mechanisms to manage the effects of stress and anxiety.

DNA reveals mating patterns of critically endangered sea turtle Posted: 03 Feb 2013 06:24 PM PST New research into the mating habits of a critically endangered sea turtle will help conservationists understand more about its mating patterns. Female hawksbill turtles mate at the beginning of the season and store sperm for up to 75 days to use when laying multiple nests on the beach. New research also reveals that these turtles are mainly monogamous and don't tend to re-mate during the season.

Security protocol for online banking and Facebook has ‘serious weaknesses,’ say researchers Posted: 03 Feb 2013 06:24 PM PST The protocol that provides security for online banking, credit card data and Facebook has major weaknesses, according to researchers.

Milestone of cancer research: Arresting cancers rather than killing them Posted: 03 Feb 2013 06:24 PM PST Medical researchers have shown that the immune system is able to drive tumors and tumor cells into a form of permanent dormancy. The resulting growth arrest allows tumor control in the absence of cancer cell destruction. This permanent dormancy – scientifically known as senescence – may persist for the whole life of the organism. Thus, immunotherapy can prevent tumor development without destroying the cells.

World's first image of Grey Friars skull unveiled Posted: 03 Feb 2013 06:24 PM PST Did this head once bear the English Crown? Researchers have just unveiled the world's first photograph of the human remains found at the Grey Friars church -- which could be that of King Richard III.

Plant scientists demonstrate new means of boosting maize yields Posted: 03 Feb 2013 11:56 AM PST Plant geneticists have successfully demonstrated what it describes as a "simple hypothesis" for making significant increases in yields for the maize plant.

Synthetic biology: Recreating natural complex gene regulation Posted: 03 Feb 2013 11:55 AM PST By reproducing in the laboratory the complex interactions that cause human genes to turn on inside cells, bioengineers have created a system they believe can benefit gene therapy research and the burgeoning field of synthetic biology.

Growth factor aids stem cell regeneration after radiation damage Posted: 03 Feb 2013 11:55 AM PST Epidermal growth factor has been found to speed the recovery of blood-making stem cells after exposure to radiation, according to researchers. The finding could open new options for treating cancer patients and victims of dirty bombs or nuclear disaster.

Immune cell 'survival' gene key to better myeloma treatments Posted: 03 Feb 2013 11:55 AM PST Scientists have identified the gene essential for survival of antibody-producing cells, a finding that could lead to better treatments for diseases where these cells are out of control, such as myeloma and chronic immune disorders. They discovered that a gene called Mcl-1 is critical for keeping this vital immune cell population alive.

Changes to DNA on-off switches affect cells' ability to repair breaks, respond to chemotherapy Posted: 03 Feb 2013 11:55 AM PST Cancer biologists have found a key determinant in the balance between two proteins, BRCA1 and 53BP1, in the DNA repair machinery. Breast and ovarian cancer are associated with a breakdown in the repair systems involving these proteins.

Understanding Earth’s climate prior to the industrial era Posted: 03 Feb 2013 11:55 AM PST Climate signals locked in the layers of glacial ice, preserved in the annual growth rings of trees, or fingerprinted in other so-called proxy archives such as lake sediments, speleothems, and corals allow researchers to quantify climate variation prior to instrumental measurements. An international research team has now investigated hundreds of these proxy records from across the globe and compared them with both simulations of the Earth's climate and instrumental measurements of temperature and precipitation.

Pioneering research helps to unravel the brain's vision secrets Posted: 03 Feb 2013 11:55 AM PST A new study has identified the two areas of the brain responsible for our perception of orientation and shape.

Mutations linked to relapse of childhood leukemia discovered Posted: 03 Feb 2013 11:54 AM PST After an intensive three-year hunt through the genome, medical researchers have pinpointed mutations that leads to drug resistance and relapse in the most common type of childhood cancer —- the first time anyone has linked the disease's reemergence to specific genetic anomalies.

Drug manufacture: Going green with iron Posted: 03 Feb 2013 11:54 AM PST Safe and inexpensive iron catalysts provide a 'greener' alternative to typical pharmaceutical production methods.

Gene therapy: Editing out genetic damage Posted: 03 Feb 2013 11:54 AM PST New design guidelines from researchers in Singapore simplify the development of targeted therapies for muscular dystrophy and other diseases.

Photonics: On track for downsizing Posted: 03 Feb 2013 11:54 AM PST The ability to miniaturize photonics devices to sizes compatible with computer chips inches closer.

Semiconductor physics: Taking control of spin Posted: 03 Feb 2013 11:54 AM PST Generating and sustaining electrical currents with unique properties for information processing comes closer to reality after a successful theoretical demonstration.

BrailleWise, aircraft toilet: Making air travel easier for visually impaired people Posted: 03 Feb 2013 11:54 AM PST Scientists have designed a new aircraft lavatory called BrailleWise®, giving visually impaired people greater independence and comfort when using toilets on airplanes.

Designer babies may explain insect sociality Posted: 03 Feb 2013 05:54 AM PST Being able to choose the sex of their babies may be the key to the complex societies built by ants, bees, and wasps, according to scientists.

Caught in the act: Researchers capture key moments in cell death Posted: 03 Feb 2013 05:51 AM PST Scientists have for the first time visualized the molecular changes in a critical cell death protein that force cells to die.

Prescription overdose rate reaches epidemic levels in NYC Posted: 03 Feb 2013 05:51 AM PST The rate of drug overdose from prescription opioids increased seven-fold in New York City over a 16-year period and was concentrated especially among white residents of the city, according to latest research. The study is one of the earliest and most comprehensive analyses of how the opioid epidemic has affected an urban area.

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