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Science News Archive 2013 - Page 56


Page 56 of 352

Imaging studies may predict tumor response to anti-angiogenic drugs

Researchers used advanced imaging techniques to determine which patients with glioblastoma would benefit from anti-angiogenic drugs. Persistent improvement in vessel perfusion and oxygen delivery was found to be associated with longer survival rates among patients.

SourceMassachusetts General Hospital·JournalProceedings of the National Academy of Sciences·DateNov 4, 2013

Transmitting stress response patterns across generations

A recent study published in Biological Psychiatry reveals that offspring of stressed mothers show stress-induced changes at birth, with altered behavior and gender-related differences continuing into adulthood. The researchers identified the CRF1 gene as a key contributor to this intergenerational transmission of patterns.

SourceElsevier·JournalBiological Psychiatry·DateNov 4, 2013

Foreign-educated health workers play vital role in US health system

Foreign-educated and foreign-born health professionals fill critical gaps in the US healthcare workforce, particularly in primary care physicians and nursing positions. However, relying on these workers may reduce incentives for addressing healthcare workforce shortages and lead to instability.

SourceRAND Corporation·JournalHealth Affairs·DateNov 4, 2013

Electronic and Internet health tools may decrease in-person physician visits

The use of electronic health records and consumer e-health apps is expected to profoundly impact the American healthcare workforce over the next decade, reducing future demand for physicians by 4-7%. This is due to increased efficiency and delegation of care to nurse practitioners and physician assistants.

SourceJohns Hopkins Bloomberg School of Public Health·JournalHealth Affairs·DateNov 4, 2013
Apple iPhone 17 Pro

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

Genetic study proves Israel's wild boars originated in Europe

A recent genetic study published in Scientific Reports reveals that Israel's wild boars descended from European pigs brought by the Philistines approximately 3,000 years ago. The research analyzed DNA samples from over 25 modern-day wild boars and found a dominant European genetic signature.

SourceAmerican Friends of Tel Aviv University·JournalScientific Reports·DateNov 4, 2013

Voxel-based magnetic resonance morphometry in Parkinson's disease patients

A study using voxel-based magnetic resonance morphometry found significant gray matter volume loss in Parkinson's disease patients compared to healthy controls. This loss was particularly pronounced in temporal, occipital, parietal, frontal, insular, and cerebellar regions.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 2013

Nanotube-based sensors can be implanted under the skin for a year

Researchers have developed nanotube-based sensors that can monitor nitric oxide levels in living animals for more than a year. The sensors, made of carbon nanotubes, can be implanted under the skin and used to monitor inflammation, potentially leading to new tools for cancer research and diabetes management.

SourceMassachusetts Institute of Technology·JournalNature Nanotechnology·DateNov 3, 2013

Studies show wide support for school-based health centers

Two studies surveyed parents and adolescents at school-based health centers (SBHCs) and found highly positive views, with 83% trusting the providers to take good care of their children. SBHCs serve as the main source of medical care for many students, offering vaccinations, check-ups, and mental health counseling.

SourceUniversity of Colorado Anschutz Medical Campus·DateNov 3, 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.

McMaster scientists unlock secrets of diabetes drug

Researchers at McMaster University discovered that metformin reduces harmful fat molecules in the liver, allowing insulin to work better and lower blood sugar levels. The study found that even obese mice with genetic mutations developed fatty liver and pre-diabetes.

SourceMcMaster University·JournalNature Medicine·DateNov 3, 2013

York researchers discover important mechanism behind nanoparticle reactivity

Researchers used electron microscopy techniques to study metallic nanoparticles' reaction with environment, finding oxidation occurs much faster due to strain introduced by size. The discovery improves understanding of nanoparticles' applications in clean fuel technologies, data storage, and catalysis.

SourceUniversity of York·JournalNature Materials·DateNov 3, 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.

The biggest mass extinction and Pangea integration

A 250 million-year-old study suggests that Pangea integration led to environmental deterioration, causing the biggest mass extinction. The integration resulted in global-scale volcanic eruptions, greenhouse gas emissions, and changes in ocean chemistry, ultimately devastating land and marine ecosystems.

SourceScience China Press·DateNov 3, 2013

Is DNA from mom or dad?

A new technique called HaploSeq enables researchers to quickly determine which genetic variants occur together on the same chromosome and came from the same parent. This advance has direct implications for personalized medicine, improving organ donation matching and understanding human migration patterns.

SourceLudwig Institute for Cancer Research·JournalNature Biotechnology·DateNov 3, 2013

Mechanism by which metformin inhibits food intake

The study found that metformin significantly reduced food intake and body weight gain by inhibiting neuropeptide Y expression in the hypothalamus. Metformin also improved lipid metabolism by reducing plasma low-density lipoprotein levels.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 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.

Life, but not as we know it

Researchers at the University of Nottingham have found a type of archaea that can reproduce without normal replication processes, growing faster in its absence. This discovery challenges existing understanding of DNA replication and has implications for cancer research.

SourceUniversity of Nottingham·JournalNature·DateNov 3, 2013

How to identify inflammatory demyelinating pseudotumor in the spinal cord?

Researchers analyzed 36 cases of inflammatory demyelinating pseudotumor in the spinal cord, finding that patchy reinforcement on MRI and inflammatory cell infiltration are key features. The study aims to reduce misdiagnosis rate and improve patient quality of life by providing accurate imaging and clinical properties.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateNov 3, 2013

Primary HPV screening provides 60–70 percent greater protection against invasive cervical cancer than cytology-based screening

A study of four European trials found that HPV-based screening provided greater protection against invasive cervical cancer than cytological screening. The analysis showed that HPV-based screening protected 60-70% more women from invasive cancers, with increased protection seen in women aged 30-35 years and those screened every 5 years.

SourceThe Lancet_DELETED·JournalThe Lancet·DateNov 2, 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.

ASU researchers discover new path to address genetic muscular diseases

Researchers from Arizona State University and Stanford Universities have discovered that the key gene Numb plays a role in promoting muscle growth and suppressing Myostatin, which limits muscle growth. The findings provide a new avenue for developing treatments for muscle diseases such as muscular dystrophy and ALS.

SourceArizona State University·JournalProceedings of the National Academy of Sciences·DateNov 1, 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.

Study explains how a job-market system lands couples in the same city

A recent study by MIT economists provides justification for current rules in job-placement programs, which can accommodate married couples. The researchers found that a properly calibrated system can work well even with large job markets and specific constraints. In fact, data from the medical job market suggests that stable matching i...

SourceMassachusetts Institute of Technology·JournalThe Quarterly Journal of Economics·DateNov 1, 2013

Nationwide disparities of deaths reported to coroners

A nationwide study reveals huge disparities in death reporting to coroners, with inconsistent rates across jurisdictions. The research also exposes a significant gender disparity, where women's deaths are less likely to be reported and result in unnatural death verdicts.

SourceUniversity of Huddersfield·JournalJournal of Clinical Pathology·DateNov 1, 2013

Congenital blindness results in lower thermal pain thresholds

A study found that congenitally blind subjects have lower heat pain thresholds and increased sensitivity to cold pain stimuli compared to sighted individuals. This suggests a permanent state of pain hypersensitivity due to the absence of visual cues, which allows for immediate detection and avoidance of potentially hazardous situations.

SourceElsevier Health Sciences·JournalPain·DateNov 1, 2013
Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

NASA satellite catches a wide-eyed Typhoon Krosa

Typhoon Krosa strengthened after passing over northern Philippines and expanded its eye by 10 nautical miles. The storm's center moved into the South China Sea, where NASA's Aqua satellite captured a visible image revealing its 35-nautical-mile-wide eye.

SourceNASA/Goddard Space Flight Center·DateNov 1, 2013

Double-pronged attack could treat common children's cancer

A new study published in Clinical Cancer Research has found a dual-pronged strategy of combining two experimental cancer drugs to be an effective treatment for childhood cancer rhabdomyosarcoma. The study showed that the combination of AZD8055 and AZD6244 reduced tumour growth and blocked off escape routes, leading to improved outcomes.

SourceInstitute of Cancer Research·JournalClinical Cancer Research·DateNov 1, 2013
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Bipolar and pregnant

A new Northwestern University study reveals that physiological changes during pregnancy reduce the effects of commonly used bipolar medications, making women more vulnerable to recurring episodes. Women with bipolar disorder may require higher doses to stay well during pregnancy.

SourceNorthwestern University·JournalAmerican Journal of Psychiatry·DateNov 1, 2013

Non-radiologists perform majority of ultrasound-guided invasive procedures, study suggests

A recent study published in the Journal of the American College of Radiology found that non-radiologists are increasingly performing ultrasound-guided invasive procedures. The study highlights the growing role of non-radiologists in these procedures, with significant increases noted between 2004 and 2010.

SourceAmerican College of Radiology·JournalJournal of the American College of Radiology·DateNov 1, 2013

Home visits lessen emergency care for infants

A new study from Duke University shows that nurse home visits can significantly reduce the need for emergency care in infants. The program, Durham Connects, costs an average of $700 per family and has been shown to decrease emergency care episodes by 50% in the first year of life.

SourceDuke University·JournalPEDIATRICS·DateNov 1, 2013

Study finds a patchwork of genetic variation in the brain

Researchers at Salk Institute discovered a patchwork of genetic variation in individual brain neurons, contrary to the long-held belief that each cell possesses identical DNA code. The study found that up to 41% of neurons have unique, massive copy number variations (CNVs) that arose spontaneously.

SourceSalk Institute·JournalScience·DateNov 1, 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.

Mindful individuals less affected by immediate rewards

A recent study published in Emotion journal found that mindful individuals show less neural response to positive feedback compared to their less mindful peers. This suggests that mindful individuals may be less affected by immediate rewards and exhibit improved self-control.

SourceUniversity of Toronto·JournalEmotion·DateNov 1, 2013

2 satellites see new Eastern Pacific tropical depression form

A new tropical depression formed in the Eastern Pacific Ocean on November 1, with NASA's TRMM satellite detecting moderate rainfall and NOAA's GOES-West satellite capturing cloud extent. The depression is expected to strengthen and become a tropical storm by the weekend.

SourceNASA/Goddard Space Flight Center·DateNov 1, 2013

JCI early table of contents for Nov. 1, 2013

Researchers found that liver Kupffer cells are essential for deleting B cells using anti-CD20 therapy. The interaction between the liver and the immune system also affects the progression of candidiasis, a leading cause of hospital-acquired infections.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 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.

Designing an acoustic diode

Researchers in China's Nanjing University have designed a novel acoustic diode that could provide brighter and clearer ultrasound images by eliminating acoustic disturbances. The device, which uses a near-Zero Index Metamaterial, achieves one-way transmission of sound waves, crucial for medical ultrasound applications.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateNov 1, 2013

A new model for organ repair

Researchers at Harvard University have identified a novel mechanism of kidney repair, where mature cells reprogram themselves after injury. This finding challenges the long-held theory that kidney stem cell populations respond to damage.

SourceHarvard University·JournalProceedings of the National Academy of Sciences·DateNov 1, 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.

Brushing your teeth could prevent heart disease

A prospective study found that improved periodontal health slows atherosclerosis progression, while worsening infections parallel increased risk for coronary events. The study suggests a clear relationship between mouth bacteria and thickening of the carotid artery.

SourceColumbia University's Mailman School of Public Health·JournalJournal of the American Heart Association·DateNov 1, 2013

Synaptic transistor learns while it computes

Researchers created a synaptic transistor that mimics the behavior of a synapse, enabling continuous adaptation to changing signals. The device offers several advantages over traditional transistors, including non-volatile memory and inherent energy efficiency.

SourceHarvard John A. Paulson School of Engineering and Applied Sciences·JournalNature Communications·DateNov 1, 2013

Pitt treats gum disease by bringing needed immune cells to inflamed tissue

Researchers at the University of Pittsburgh developed a system to attract regulatory T-cells to inflamed gums, reducing inflammation and improving periodontal disease symptoms. The treatment showed promise in animal studies, offering a new therapeutic paradigm for treating gum disease.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalProceedings of the National Academy of Sciences·DateNov 1, 2013

International team identifies earliest galaxy ever detected

Astronomers at UMass Amherst and UT at Austin identify the most distant galaxy, with a redshift parameter of z = 7.51, indicating it is 700 million years old. The discovery challenges theories on galaxy formation and suggests intense star-forming galaxies may be more common than thought.

SourceUniversity of Massachusetts Amherst·JournalNature·DateNov 1, 2013

Genetic rarity rules in wild guppy population, study finds

In a wild guppy population, female guppies mate with rare males who have unique color patterns, resulting in longer lifespan and more offspring. This study supports the theory that individuals within species are genetically diverse due to various factors.

SourceFlorida State University·JournalNature·DateNov 1, 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.

Liver tropism is key for B cell deletion immunotherapy

B cells circulating through the liver are first depleted after treatment with anti-CD20 antibodies. The study reveals a vital role of liver Kupffer cells in deleting B cells and provides techniques to improve the effectiveness of anti-CD20 therapy.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2013

US preterm birth rate drops to 15-year low

The US preterm birth rate has dropped to its lowest level in 15 years, but the country still earns a 'C' grade. Since 2006, about 176,000 fewer babies have been born too soon, potentially saving $9 billion in health and societal costs.

SourceMarch of Dimes Foundation·DateNov 1, 2013

Patients with heart failure need specialist care

A Swedish study reveals that many heart failure patients are undertreated, with high mortality rates associated with poor pump capacity, kidney function, blood count, and lack of ACE inhibitors and beta blockers. The study suggests referring these patients to heart failure specialists for evaluation and treatment.

SourceKarolinska Institutet·JournalJournal of the American College of Cardiology·DateNov 1, 2013

Sugar intake is not directly related to liver disease

A new study published in Gastroenterology found that high-calorie diets, regardless of sugar type, contribute to the development of nonalcoholic fatty liver disease. The study revealed comparable effects of fructose and glucose on the liver, highlighting calorie intake as a key factor in liver disease progression.

SourceAmerican Gastroenterological Association·JournalGASTROENTEROLOGY·DateNov 1, 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.

Global warming led to dwarfism in mammals -- twice

Researchers found that mammalian body size decreased during two ancient global warming events, the Paleocene-Eocene Thermal Maximum (PETM) and Eocene Thermal Maximum 2 (ETM2). The study suggests that mammals may adapt to extreme warming by becoming smaller.

SourceUniversity of Michigan·DateNov 1, 2013

Dysfunctional chemokine receptor promotes candidiasis

A dysfunctional chemokine receptor, CXCR1, plays a crucial role in Candida infection progression. Mice lacking this receptor are prone to kidney failure due to Candida-induced injury. Additionally, patients with a mutation in the CXCR1 gene are at higher risk of developing candidiasis.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 1, 2013

New study: Rising temperatures challenge Salt Lake City's water supply

New research shows that rising temperatures could lead to a 1.8-6.5% drop in the annual flow of streams providing water to Salt Lake City, with some creeks and streams drying up weeks earlier in summer and fall. The study's findings can help regional planners make informed decisions on long-term investments and adapt to climate change.

SourceUniversity of Colorado at Boulder·JournalEarth Interactions·DateNov 1, 2013

Durbin, University of Illinois announce $25 million federal grant

The University of Illinois has received a $25 million federal grant to improve soybean yields in five African countries, increasing the continent's food supply. The project will focus on developing high-yielding soybean varieties and improving poultry nutrition.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·DateNov 1, 2013