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Science News for March 6, 2013


Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

Majority of Albertans support assisted suicide: UAlberta study

A new study by University of Alberta researcher Donna Wilson found that 77.4% of Albertans support assisted suicide, citing personal experiences and autonomy as key factors. The results challenge traditional views in the province and raise important questions about end-of-life care.

SourceUniversity of Alberta·JournalHealth & Social Care in the Community·DateMar 6, 2013

Star-shaped glial cells act as the brain's 'motherboard'

Researchers at Tel Aviv University discovered that astrocytes play a key role in brain communications, integrating messages and connecting neuronal circuits. This new framework offers insight into brain disease and disorders, such as epilepsy and Alzheimer's, which are linked to malfunctions in brain connectivity.

SourceAmerican Friends of Tel Aviv University·JournalFrontiers in Computational Neuroscience·DateMar 6, 2013

Study finds sexual health services for rural Latino men could be improved

A new study found that rural Latino men require specialized sexual health services due to language barriers, cultural assumptions, and limited access. The research team suggests improving services by providing male providers, bilingual staff, and convenient clinic hours, as well as addressing terminology and cultural nuances.

SourceOregon State University·DateMar 6, 2013
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Measuring the universe more accurately than ever before

A team of astronomers has measured the distance to the Large Magellanic Cloud with unprecedented accuracy, pinning down its value at 163,000 light-years. This breakthrough improves distances for Cepheid variable stars and the Hubble Constant, enabling more precise surveying of the Universe.

SourceESO·JournalNature·DateMar 6, 2013

New grant expands beach water research at Presque Isle State Park

Mercyhurst University has received a $20,000 grant to extend its research on emerging contaminants in Lake Erie waters at Presque Isle State Park. The study will focus on five chemicals, including fluoxetine, triclosan, estradiol, diuron, and sucralose, which have been shown to have negative health consequences.

SourceMercyhurst College·DateMar 6, 2013

How the body's energy molecule transmits 3 types of taste to the brain

A team of researchers discovered that ATP release is key to transmitting sweet, bitter, and umami taste information to the brain. The CALHM1 channel protein plays a crucial role in releasing ATP, allowing taste buds to send signals to the brain for these three primary taste types.

SourceUniversity of Pennsylvania School of Medicine·JournalNature·DateMar 6, 2013

A new cryptic spider species from Africa

A new cryptic spider species, Copa kei, has been described in southeastern South Africa, highlighting the region's biodiversity and ecological flexibility. The species exhibits extreme habitat adaptability, contrasting with its close relative C. flavoplumosa, which occupies a wider range of habitats.

SourcePensoft Publishers·JournalZooKeys·DateMar 6, 2013
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

Human brain treats prosthetic devices as part of the body

Research shows that individuals with spinal cord injuries perceive their wheelchairs as a functional substitute for their affected body part. This perception is not limited by time since injury or experience with using the wheelchair, indicating a deeper integration of prosthetics into bodily awareness.

SourcePLOS·JournalPLOS ONE·DateMar 6, 2013

Flip of a single molecular switch makes an old brain young

Yale researchers have identified a key genetic switch that facilitates brain maturation and plasticity. By blocking this gene, they were able to reset the old brain to adolescent levels of plasticity, allowing adult mice to recover from injuries and master new motor tasks more quickly.

SourceYale University·JournalNeuron·DateMar 6, 2013

Folate and vitamin B12 reduce disabling schizophrenia symptoms in some patients

A study found that adding folate and vitamin B12 to antipsychotic medication improved negative symptoms of schizophrenia, particularly in individuals carrying specific genetic variants. The results suggest a potential new avenue for treatment, as well as the need for personalized medical approaches.

SourceMassachusetts General Hospital·JournalJAMA Psychiatry·DateMar 6, 2013

Study pinpoints, prevents stress-induced drug relapse in rats

Researchers identified specific steps in the sequence of neural events underlying stress-related drug relapse and showed that blocking kappa opioid receptors can prevent relapse. The study suggests a new approach to treating addiction recovery by targeting stress-induced brain mechanisms.

SourceBrown University·JournalNeuron·DateMar 6, 2013
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

How birds of different feathers flock together

Researchers at the University of Cambridge and Exeter discovered that bird flocks are determined by social relationships between individuals within species, not just species differences. The study found that birds prefer to fly close to members of their own species and that dominant rooks take the lead in mixed-species flocks.

SourceUniversity of Cambridge·JournalAnimal Behaviour·DateMar 6, 2013

Distance to nearest galaxy measured

Researchers have measured the distance to our nearest neighbor galaxy, the Large Magellanic Cloud, using rare eclipsing binaries. The new measurement refines an astronomical calculation that helps measure the expansion of the universe, decreasing uncertainty in the Hubble constant.

SourceCarnegie Institution for Science·JournalNature·DateMar 6, 2013

Study focuses on dating violence in Texas public schools

A study by Sam Houston State University found that most Texas public school districts have adopted dating violence policies, but few offer safety provisions for victims. The report suggests that districts develop clearer consequences and programs to raise awareness about teen dating violence.

SourceSam Houston State University·JournalCriminal Justice Policy Review·DateMar 6, 2013
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

Some brain cells are better virus fighters

Research reveals that certain brain cells are better equipped to fight off viral infections due to their unique immune defense mechanisms. The study found that granule cell neurons, which rarely become infected, have different gene profiles compared to cortical neurons, making them more resistant to infection.

SourceWashU Medicine·JournalNature Medicine·DateMar 6, 2013

How to predict the progress of technology

Researchers at MIT and the Santa Fe Institute found that some widely used formulas, such as Moore's Law and Wright's Law, offer superior approximations of technological progress. The study analyzed data from 62 industries and found that these two laws best match actual technological advancements over past decades.

SourceMassachusetts Institute of Technology·JournalPLOS ONE·DateMar 6, 2013

Circuitry of cells involved in immunity, autoimmune diseases exposed

A study by the Broad Institute's Klarman Cell Observatory reveals a link between Th17 cells, autoimmunity, and salt consumption, highlighting the interplay of genetics and environmental factors in disease susceptibility. The research provides new avenues for regulating these cells to prevent or treat autoimmune diseases.

SourceBrigham and Women's Hospital·JournalNature·DateMar 6, 2013
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Spot the difference -- oranges and lemons

A computer recognition system can quickly distinguish between oranges and lemons and spot different strains of pear, melon, apple, and plum with high accuracy. The system can be used for sorting and packing fruits and vegetables, as well as speeding up supermarket customer checkout.

SourceInderscience Publishers·JournalInternational Journal of Applied Pattern Recognition·DateMar 6, 2013

New study detects deadly fungus in Southeast Asia's amphibian trade

A new study reveals the presence of chytrid fungus in amphibians sampled in Singapore, with the American bullfrog identified as a potential carrier. The study also finds widespread disease among frogs in Vietnam's commercial farms, raising concerns about the spread of infectious diseases through trade.

SourceWildlife Conservation Society·JournalEcoHealth·DateMar 6, 2013

New clues to causes of peripheral nerve damage

Researchers discovered that crippled mitochondria in Schwann cells lead to a toxic substance build-up, causing nerve damage and symptoms like numbness and pain. This finding may lead to new therapeutic strategies to treat peripheral neuropathies, including drugs that block toxin buildup.

SourceWashU Medicine·JournalNeuron·DateMar 6, 2013

Scientists at A*STAR's Genome Institute of Singapore catch evolving germs and cancer cells early

Researchers at A*STAR's Genome Institute of Singapore have developed a novel technique called LoFreq, which allows them to detect microbe and cancer cell mutations in real-time. This breakthrough enables scientists to catch the development of resistance early on and investigate the effectiveness of new drugs.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·JournalNucleic Acids Research·DateMar 6, 2013
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Federal figures miss most work-related amputations

A new report from Michigan State University reveals nearly two-and-a-half times more actual cases of work-related amputations than the federal government's official estimate. The study emphasizes the importance of using multiple data sources to track workplace injuries and illnesses.

SourceMichigan State University·JournalJournal of Occupational and Environmental Medicine·DateMar 6, 2013

Portion of hippocampus found to play role in modulating anxiety

A study by Columbia University researchers found that selectively activating the dentate gyrus in the hippocampus can reduce anxiety without affecting learning. This suggests that targeting this brain region could be used to treat certain anxiety disorders with minimal cognitive side effects.

SourceColumbia University Irving Medical Center·JournalNeuron·DateMar 6, 2013

Researchers discover workings of brain's 'GPS system'

A new study from Princeton University provides evidence for how the brain performs this feat. Grid cells are neu­rons that become elec­tri­cally active as ani­mals travel in an envi­ron­ment, and their activ­ity ramping up and down corresponds with a pro­posed mech­a­nism of neural com­pu­ta­tion called an attrac­tor net­work.

SourcePrinceton University·JournalNature·DateMar 6, 2013

Researchers explain a key developmental mechanism for the first time in plants

A team of researchers from Cold Spring Harbor Laboratory explains for the first time the operation of a mechanism in plants that controls developmental regulatory genes, including homeobox genes like BREVIPEDICELLUS and KNAT2. In plant stem cells, a polycomb gene-repressing protein complex called PRC2 is recruited to specific sites alo...

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateMar 6, 2013
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

CSI: Milky Way

Astronomers suggest that a merger between a galactic black hole and an intermediate-sized black hole in a satellite galaxy could have produced the observed high-energy radiation in the Fermi bubbles. This scenario also explains the absence of old stars near the supermassive black hole.

SourceVanderbilt University·JournalMonthly Notices of the Royal Astronomical Society·DateMar 6, 2013

Processed meat linked to premature death

A large European study found that eating processed meat was associated with an increased risk of premature death, particularly from cancer and cardiovascular disease. The researchers estimated that up to 3% of premature deaths could be prevented if people consumed less than 20g of processed meat per day.

SourceBMC (BioMed Central)·JournalBMC Medicine·DateMar 6, 2013

Scientists improve transgenic 'Enviropigs'

Researchers have developed a new line of transgenic 'Enviropigs' that can digest high levels of phosphorus in plant matter, eliminating the need for supplements. This breakthrough could improve food production and reduce environmental pollution by producing less phosphorus waste.

SourceAmerican Society of Animal Science·JournalJournal of Animal Science·DateMar 6, 2013
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Penn Medicine physician: Emphasis on 'value' in health care reform sends mixed messages

A Penn Medicine physician highlights the need for a unified approach to value in health care reform, as divergent priorities between patients and physicians create obstacles. Patients and physicians have different notions of value, with patients seeking enhanced experiences and physicians focusing on efficiency and evidence-based care.

SourceUniversity of Pennsylvania School of Medicine·JournalNew England Journal of Medicine·DateMar 6, 2013

Involving other providers in palliative care may help meet growing demand

Involving generalists and specialists in primary palliative care skills can alleviate patient suffering through high-quality pain and symptom management. This approach could increase access to specialty palliative care consultation while providing fundamental aspects of palliative care.

SourceUniversity of Rochester Medical Center·JournalNew England Journal of Medicine·DateMar 6, 2013

Pancakes with a side of math

Researchers develop a physical model for sap exudation, attributing mechanism to pressure and volume changes in tree's vascular tissue. The model incorporates dynamics of thawing sap, dissolving gas bubbles, and osmotic pressure gradient.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Applied Mathematics·DateMar 6, 2013
Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Salt identified as autoimmune trigger

Researchers at Yale School of Medicine found that dietary salt can induce and worsen pathogenic immune system responses in mice, leading to a more severe form of multiple sclerosis. They discovered the key molecular pathway involved in this response and proposed regulatory networks that govern autoimmune disease.

SourceYale University·JournalNature·DateMar 6, 2013

A sausage a day is too many

A European-wide study with 450,000 participants found that eating over 40 grams of processed meat per day increases the risk of mortality compared to those who eat fewer than 20 grams a day. Moderate consumption of up to 40 grams daily does not increase mortality risk.

SourceUniversity of Zurich·JournalBMC Medicine·DateMar 6, 2013

Improving electronics by solving nearly century-old problem

A team of researchers led by UC Riverside Professor Alexander A. Balandin has solved the long-standing issue of low-frequency electronic 1/f noise in materials and devices. By studying multi-layered graphene samples, they found that the origin of this signal is at the surface of electrical conductors, contrary to previous research.

SourceUniversity of California - Riverside·JournalApplied Physics Letters·DateMar 6, 2013
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

UTHealth researchers report prevalence of sexting among minority youth

Researchers at UTHealth found that up to 30 percent of minority youths reported engaging in sexting behaviors, with over 20 percent sending nude photos and more than 30 percent receiving them. The study suggests that this issue has been overlooked among ethnic minority youth.

SourceUniversity of Texas Health Science Center at Houston·DateMar 6, 2013

Short bouts of exercise boost self control

Research found short bouts of exercise enhance higher brain functions, including memory, concentration, planning, and decision-making, in all three age groups. Short exercises improved self-control, especially in children and teens, crucial for academic achievement and daily life.

SourceBMJ Group·JournalBritish Journal of Sports Medicine·DateMar 6, 2013

Circuitry of cells involved in immunity, autoimmune diseases exposed

Researchers have made a surprising connection between autoimmunity and salt consumption, highlighting the interplay of genetics and environmental factors. The study's findings could lead to new ways to regulate T helper 17 cells and their function in autoimmune diseases.

SourceBroad Institute of MIT and Harvard·JournalNature·DateMar 6, 2013
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

First in-depth deer census highlights need for increased culls

A new study highlights the need for increased culls to control the UK's growing deer population. The research found that current management efforts are insufficient to stop populations from spreading out of control, threatening biodiversity and causing damage to crops and road traffic accidents.

SourceUniversity of East Anglia·JournalJournal of Wildlife Management·DateMar 6, 2013

'Healthier hormones' through diet and exercise

A study of 439 overweight postmenopausal women found that weight loss and physical activity lower the risk of breast, colorectal, and cervical cancers. Adiponectin levels increased with weight loss, while leptin levels decreased, suggesting a protective effect against tumor cell growth.

SourceHelmholtz Association·JournalJournal of Internal Medicine·DateMar 6, 2013

Curtains down for the black hole firewall paradox

Researchers have found that entanglement across a black hole's event horizon plays a crucial role in determining the existence of a 'firewall' paradox. The study confirms and generalizes previous claims about entanglement in black holes, supporting Einstein's theory of gravity.

SourceUniversity of York·JournalPhysical Review Letters·DateMar 6, 2013
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Internet searches can identify drug safety issues well ahead of public alerts

Researchers analyzed 82 million drug-related search queries from 6 million users and found that those who searched for both drugs were more likely to look up symptoms associated with high blood sugar. This suggests that online searches could be used as an early warning system for potential drug safety issues.

SourceBMJ Group·JournalJournal of the American Medical Informatics Association·DateMar 6, 2013

Visceral fat causally linked to intestinal cancer

A mouse study published in Cancer Prevention Research found that removing visceral fat reduces the development of intestinal tumors. The study also showed gender differences in how adiposity affects cancer risk, highlighting the need for targeted strategies to reduce abdominal obesity and promote weight loss.

SourceAmerican Association for Cancer Research·JournalCancer Prevention Research·DateMar 6, 2013

Killing cancer cells with acid reflux

University of Central Florida chemist Kevin Belfield uses acid reflux to kill certain cancer cells by making them more acidic when exposed to specific wavelengths of light. This technique could provide a way to target cancer cells deep within human tissue with minimal side effects.

SourceUniversity of Central Florida·JournalJournal of the American Chemical Society·DateMar 6, 2013

UTHealth researchers find industrial chemicals in food samples

Researchers at UTHealth found phthalates in 72 commonly consumed food samples, with all products showing some level of phthalate contamination. The discovery raises concerns about exposure to toxic chemicals, particularly given the potential health risks associated with phthalates.

SourceUniversity of Texas Health Science Center at Houston·JournalEnvironmental Health Perspectives·DateMar 6, 2013
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Navy creates iPad app for managing stress and fending off PTSD

The Stress Resilience Training System (SRTS) app teaches Sailors and Marines to recognize their stress responses and manage them using biofeedback techniques. The app's field testing at the Naval Center for Combat and Operational Stress Control could help prevent PTSD in warfighters, saving billions of dollars in medical costs.

SourceOffice of Naval Research·DateMar 6, 2013

Scientists discover distant relatives of gardeners' friend

Researchers at Simon Fraser University have unearthed a diverse group of fossilized green lacewing insects, revealing at least 10 new species. The findings provide valuable insights into ancient life and the formation of modern natural communities.

SourceSimon Fraser University·JournalJournal of Paleontology·DateMar 6, 2013

Use it or lose it

A new study found that prolonged exposure to an enriched environment activates brain receptors, preventing amyloid beta protein from weakening nerve cell communication. This provides a molecular mechanism for why a richer environment can help lessen the memory-eroding effects of Alzheimer's disease.

SourceBrigham and Women's Hospital·JournalNeuron·DateMar 6, 2013

Ketchup turns somersaults

Researchers at Technical University of Munich created a numerical model to study complex fluids, such as ketchup, which exhibits unusual behavior when shaken. The model explains the effects of long-chained polymer molecules on flow resistance, providing new insights into the microscopic mechanisms driving these phenomena.

SourceTechnical University of Munich (TUM)·JournalPhysical Review Letters·DateMar 6, 2013
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Origin of aggressive ovarian cancer discovered

A novel stem cell niche for the ovarian surface epithelium has been identified, where ovarian carcinoma preferentially originates. This discovery provides a new guide for scientists to look for stem cell niches and sources of cancer in other transitional zones.

SourceCornell University·JournalNature·DateMar 6, 2013

UGA researchers shed light on ancient origin of life

University of Georgia researchers discovered essential genes in archaea that shed light on the history of microorganisms and the origins of life. The study found unique DNA synthesis systems, essential genes necessary for methane production, and insights into cell formation.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateMar 6, 2013
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Bats not bothered by forest fires, study finds

A recent study published in PLOS ONE found that bats are neutral or positively impacted by moderate to high-severity forest fires. The research suggests that fires may create a habitat structure beneficial for various bat species, with some even preferring burned areas for foraging.

SourceUniversity of California - Santa Cruz·JournalPLOS ONE·DateMar 6, 2013

INRS overcomes a hurdle in the development of terahertz lasers

Researchers at INRS Énergie Matériaux Télécommunications have developed a non-reciprocal electromagnetic isolator critical to THz source applications. The device enables the development of terahertz lasers and amplifiers, crucial for imaging, communications, and spectroscopy technologies.

SourceInstitut national de la recherche scientifique - INRS·JournalNature Communications·DateMar 6, 2013