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Science News Archive 2013 - Page 167


Page 167 of 352

Researchers question practice of automatically transfusing large amounts of blood to trauma patients

A study published in the Canadian Medical Association Journal found higher rates of complications in blood-based resuscitation compared to conventional resuscitation, with no difference in mortality rates. Researchers led by Dr. Sandro Rizoli recommend larger trials to confirm findings and explore alternatives.

SourceSt. Michael's Hospital·JournalCanadian Medical Association Journal·DateJul 15, 2013

Biochemists uphold law of physics

Researchers at UC Davis show that individual protein molecules can restart at any speed achieved by the whole population of enzymes, demonstrating the ergodic theorem. This finding has implications for understanding protein folding, drug interactions, and enzyme engineering.

SourceUniversity of California - Davis·JournalNature·DateJul 15, 2013

Air Force support for a new generation of lithium-ion batteries

Researchers have developed a new graphene technique that significantly increases lithium-ion battery storage capacity by combining graphene nanoribbons with tin oxide. The resulting prototype battery retains more than double the capacity of standard graphite anodes after repeated charge-discharge cycles.

SourceAir Force Office of Scientific Research·JournalIEEE Spectrum·DateJul 15, 2013
Apple iPhone 17 Pro

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

Chinese people may be at higher risk for stroke than Caucasians

A new study suggests that Chinese people are at a higher risk of stroke than Caucasians. The research found a slightly higher overall risk of stroke in Chinese people, with a range of 205 to 584 strokes per 100,000 Chinese people age 45 to 74 compared to 170 to 335 strokes per 100,000 Caucasian people in the same age group.

SourceAmerican Academy of Neurology·JournalNeurology·DateJul 15, 2013

Medicaid patients at higher risk of complications after spine surgery

A study published in Spine highlights the increased risk of complications among Medicaid beneficiaries after spinal surgery, even after adjusting for other factors. The researchers found that Medicaid recipients were 68% more likely to experience adverse outcomes than patients with private insurance.

SourceWolters Kluwer Health·JournalSpine·DateJul 15, 2013

Black-legged ticks linked to encephalitis in New York state

Researchers link black-legged ticks to an increased risk of Powassan encephalitis, a rare but serious illness with a 10-15% fatality rate. The study found deer tick virus in over 13,500 ticks, with infected adult ticks concentrated east of the Hudson River.

SourceCary Institute of Ecosystem Studies·JournalParasites & Vectors·DateJul 15, 2013

An end-of-life 'conversation guide' for physicians to speak with patients

A new 'conversation guide' aims to increase physicians' confidence in engaging patients in meaningful end-of-life discussions. The framework provides structured guidance on identifying high-risk patients, communicating prognosis, and involving substitute decision-makers.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJul 15, 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.

Common autism supplement affects endocrine system

A University of Colorado study shows that luteolin, a common autism supplement, blocks progesterone's action but promotes estrogen-stimulated breast cancer growth. The findings highlight the need for caution when consuming flavonoid supplements, as their effects on the endocrine system are not yet fully understood.

SourceUniversity of Colorado Anschutz Medical Campus·JournalHormones and Cancer·DateJul 15, 2013

Notre Dame researchers offer new insights on cancer cell signaling

Researchers at the University of Notre Dame have identified the importance of Wnt proteins and ARF6 in cancer cell signaling. The studies found that ARF6 can propagate Wnt signaling, leading to proliferation in epithelial tumors and melanoma spread. This understanding offers potential target molecules for cancer drug development.

SourceUniversity of Notre Dame·JournalMolecular and Cellular Biology·DateJul 15, 2013

Neurotoxicity of chemotherapy drugs

Recent studies have found chemotherapy-associated adverse neurological effects, including vascular complications and neuropathic pains. Chemotherapy triggers changes in ion channels on dorsal root ganglia, resulting in secondary changes that affect neurogenesis and plasticity.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateJul 15, 2013

1-year mortality remains high in patients with prosthetic valve endocarditis

Prosthetic valve endocarditis is associated with significant morbidity and mortality, and early surgery does not appear to reduce one-year mortality compared to medical therapy. Approximately one-third of patients die within one year after diagnosis, mainly due to complications such as S aureus infection.

SourceJAMA Network·JournalJAMA Internal Medicine·DateJul 15, 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.

Pain control in children with cerebral palsy

A new study published in Pediatrics reveals that over 25% of children with cerebral palsy suffer from moderate to severe chronic pain, limiting their activity. Pediatricians should focus on identifying and treating the underlying causes of pain to improve health and quality of life for these children.

SourceUniversity of Toronto·JournalPEDIATRICS·DateJul 15, 2013

Taking the 'random' out of a random laser

Researchers at Vienna University of Technology have developed a method to steer the radiation emitted by a random laser into a pre-determined direction. This breakthrough allows for the creation of a new type of light source with potentially useful applications.

SourceVienna University of Technology·JournalPhysical Review Letters·DateJul 15, 2013

Fear factor: Missing brain enzyme leads to abnormal levels of fear in mice, reveals new research

Researchers found that mice lacking the monoamine oxidase A and B enzymes displayed increased fear and generalized phobia to new contexts. This study suggests a correlation between MAO enzyme deficiency and autistic-like features, highlighting potential avenues for developing interventions for neuropsychiatric disorders.

SourceUniversity of Southern California·JournalProceedings of the National Academy of Sciences·DateJul 15, 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.

JCI early table of contents for July 15, 2013

Research identifies a link between the FTO gene and increased hunger-stimulating hormone production in individuals prone to obesity. Additionally, studies show that adult brown fat levels increase with cold exposure, which may provide a new strategy for combating obesity.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 15, 2013

Nesting Gulf loggerheads face offshore risks

A USGS study reveals that threatened loggerhead sea turtles in the northern Gulf of Mexico require broader habitat protection to recover. The research shows that female turtles visit multiple beaches, sometimes hundreds of miles apart, during their reproductive periods.

SourceU.S. Geological Survey·JournalPLOS ONE·DateJul 15, 2013

NIST offers guidance on building 21st-century forensic labs

The new NIST handbook provides a comprehensive guide for planning, designing, constructing, and relocating forensic science laboratories. The document outlines the four-phase cycle for creating new laboratory space and includes tools to support each phase.

SourceNational Institute of Standards and Technology (NIST)·DateJul 15, 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.

A guide to help physicians talk to their patients about dying

A new conversation guide aims to improve physicians' ability to discuss end-of-life care with patients, addressing the growing need for sensitive discussions due to an aging population and chronic illness. The guide provides practical advice on identifying high-risk patients, communicating prognosis, and clarifying patient values.

SourceMcMaster University·JournalCanadian Medical Association Journal·DateJul 15, 2013

Study finds clues on how to keep kids engaged with educational games

A pilot study from North Carolina State University found that switching seats can keep middle school students engaged in educational gaming tasks. The researchers discovered that the student actively playing the game stayed focused, while the second student on the team often lost interest.

SourceNorth Carolina State University·DateJul 15, 2013

Texas Invasive Species Program established at UT Austin

The program aims to study exotic invasive pests and develop sustainable approaches to counter problem organisms threatening biodiversity in central and southern Texas. Researchers will focus on native ant species, such as the fire ant, tawny crazy ant, and Cactoblastis moth, to improve competitiveness of native species.

SourceUniversity of Texas at Austin·DateJul 15, 2013
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

Wayne State University scientists identify neural origins of hot flashes in menopausal women

Researchers used fMRI to investigate the neural origins of hot flashes in postmenopausal women. They found that activity in brain regions like the brain stem and insula rises before and after the hot flash, respectively. The study provides novel insights into the complex brain mechanisms underlying this common menopause symptom.

SourceWayne State University - Office of the Vice President for Research·JournalCerebral Cortex·DateJul 15, 2013

Air Force supported scientist honored with 2013 Körber European Science Prize

Dr. Immanuel Bloch will receive the 2013 Körber European Science Prize for his groundbreaking research on lattice-trapped ultracold atoms, enabling precise monitoring of solid structures and potential applications in superconductors and quantum information processing. The prize includes €750,000 to support his research activities.

SourceAir Force Office of Scientific Research·DateJul 15, 2013

Scientists outline long-term sea-level rise in response to warming of planet

A new study estimates that global sea levels will rise 2.3 meters over the next several thousand years for every degree Celsius the planet warms. The four major contributors to sea-level rise on a global scale are melting of glaciers, Greenland ice sheet, Antarctic ice sheet, and ocean expansion as it warms.

SourceOregon State University·JournalProceedings of the National Academy of Sciences·DateJul 15, 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.

Understanding the role of IKACh in cardiac function

A study reveals that the acetylcholine-activated inward-rectifying potassium current (IKACh) plays a critical role in regulating cardiac pacemaker activity and heart rate. The research found that mice lacking IKACh displayed a moderate increase in resting heart rate and delayed recovery after stress or exercise.

SourceRockefeller University Press·JournalJournal of General Physiology·DateJul 15, 2013

Annals of Internal Medicine tip sheet for July 16, 2013

Long-term aspirin use has been linked to reduced colorectal cancer risk, but alternate-day dosing shows increased gastrointestinal bleeding. Electronic health records adoption led to ambulatory cost savings of 3% per member per month and reductions in radiology costs in experimental pilot communities.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJul 15, 2013

Chemical compound shows promise as alternative to opioid pain relievers

Researchers have identified a new chemical compound, CYM51010, that targets the opioid receptor complex and shows promise as an alternative to morphine. The compound is potent and less likely to result in tolerance and negative side effects.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalProceedings of the National Academy of Sciences·DateJul 15, 2013

Electronic health records slow the rise of healthcare costs

A study from the University of Michigan found that electronic health records can slow the rise of healthcare costs, with a 3% savings in outpatient care compared to traditional paper records. The study examined data from nine communities and estimated $5.14 in savings per patient per month.

SourceUniversity of Michigan·JournalAnnals of Internal Medicine·DateJul 15, 2013
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

An 'obesity-risk' allele alters hunger-stimulating hormone production

A study found that the 'obesity-risk' FTO allele alters hunger-stimulating hormone production, leading to increased food consumption and satiety impairment. The research also reveals a direct link between FTO and ghrelin mRNA demethylation, providing new insights into obesity development.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJul 15, 2013
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

NASA Hubble finds new Neptune moon

The newly discovered moon, S/2004 N 1, is estimated to be 12 miles across and is the smallest known moon orbiting Neptune. It was found using archival images taken by Hubble from 2004 to 2009 and noticed a white dot between the orbits of Neptunian moons Larissa and Proteus.

SourceNASA/Goddard Space Flight Center·DateJul 15, 2013

Prior flu exposure dictates your future immunity, allowing for new, rationally developed regiments

Researchers at The Wistar Institute found that sequential vaccination with distinct influenza strains can stimulate immune responses against multiple strains. This approach offers an alternative to creating a universal flu vaccine by targeting conserved regions of the virus, potentially providing long-term immunity.

SourceThe Wistar Institute·JournalJournal of Experimental Medicine·DateJul 15, 2013
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Is the ice in Greenland in growing decline?

The study found that Greenland's ice sheets are losing significant amounts of ice at a rate of about 300 billion tons per year. The accelerated loss of ice mass is attributed to both anthropogenic warming and natural processes such as variations in snowfall and ocean currents.

SourceHelmholtz Association·JournalNature Geoscience·DateJul 14, 2013

Sexual reproduction only second choice for powdery mildew

Research reveals that powdery mildew fungi favor asexually produced offspring for infection, while sexual reproduction is crucial for adaptation to host defense mechanisms. The study suggests an ancient co-evolutionary history between the fungus and its hosts, highlighting the complex dynamics of plant-fungus interactions.

SourceUniversity of Zurich·JournalNature Genetics·DateJul 14, 2013

Scientists discover kill-switch controls immune-suppressing cells

Researchers have uncovered the cell death processes that determine regulatory T cell numbers, which can lead to better treatments for autoimmune diseases. The discovery of Bcl-2 family proteins as determinants of regulatory T cell numbers offers new ways to control these cells and potentially suppress autoimmune disease.

SourceWalter and Eliza Hall Institute·JournalNature Immunology·DateJul 14, 2013
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Boldly illuminating biology's 'dark matter'

Researchers used single-cell genomics to identify 201 distinct microbial genomes, revealing unexpected metabolic features and resolving relationships within and between microbial phyla. The study provides a profound leap of understanding the microbial evolution on our planet.

SourceDOE/Joint Genome Institute·JournalNature·DateJul 14, 2013

Imaging electron pairing in a simple magnetic superconductor

Researchers at Brookhaven National Laboratory develop method to measure energy required for electrons to pair up and how it varies with direction. The technique reveals directional dependence of the 'glue' holding electron pairs together, shedding light on magnetic superconductivity.

SourceDOE/Brookhaven National Laboratory·JournalNature Physics·DateJul 14, 2013

Surprise finding reveals how adaptive our immune systems can be

Researchers found that people with Hyper IgE Syndrome have more redundancy in their immune systems than expected, allowing them to respond effectively to most viruses and cancers. This discovery highlights the differences between mouse model work and real human infectious diseases, providing valuable insights for clinical treatment.

SourceGarvan Institute of Medical Research·JournalJournal of Allergy and Clinical Immunology·DateJul 14, 2013

Key step in molecular 'dance' that duplicates DNA deciphered

Researchers have captured a key step in the molecular 'dance' necessary for cell division by imaging the enzyme that unwinds DNA double helices. The study reveals how this enzyme recruits and interacts with the origin recognition complex, enhancing understanding of essential biological processes.

SourceDOE/Brookhaven National Laboratory·JournalNature Structural & Molecular Biology·DateJul 14, 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.

Scientists solve a 14,000-year-old ocean mystery

Researchers found that a transient 'perfect storm' of nutrients and light led to the brief bloom of phytoplankton 14,000 years ago. The study resolves conflicting ideas about the relationship between iron and biological productivity in the North Pacific, with implications for geo-engineering efforts to curb climate change.

SourceWoods Hole Oceanographic Institution·JournalNature Geoscience·DateJul 14, 2013

NIH scientists find that proteins involved in immunity potentially cause cancer

A set of proteins involved in the body's natural defenses produces a large number of mutations in human DNA, according to a study led by researchers at the National Institutes of Health. In some cancers, these naturally produced mutations can outnumber all other mutations and account for over two-thirds of tumors.

SourceNIH/National Institute of Environmental Health Sciences·JournalNature Genetics·DateJul 14, 2013

Antiviral enzyme contributes to several forms of cancer, University of Minnesota researchers say

Researchers at the University of Minnesota have discovered that APOBEC3B, a human antiviral enzyme, causes DNA mutations that lead to several types of cancer. The enzyme was found to be significantly elevated in six types of cancer and produced a unique mutational signature that matches the actual mutation pattern in these cancers.

SourceUniversity of Minnesota·JournalNature Genetics·DateJul 14, 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.