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Science News Archive 2013


Page 315 of 352

Study in mice yields Angelman advance

A team of scientists at Brown University has made a breakthrough in understanding the neurological signaling breakdown in Angelman syndrome, a disorder affecting thousands of children. They demonstrated how a synthesized compound called CN2097 works to restore neural functions impaired by the disease.

World first for fly research

The University of Manchester has published the first-ever basic training package for using fruit flies in research, particularly in cancer and Alzheimer's disease studies. The package was developed by Dr Andreas Prokop and aims to educate scientists about the benefits of using Drosophila flies.

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.

Clues to chromosome crossovers

Researchers at UC Davis have identified the essential role of Rnf212 protein in chromosome crossovers, a process vital for sexual reproduction. The study found that Rnf212 defines where crossovers occur, potentially reducing fertility and leading to chromosomal diseases.

Resistance is futile

Researchers from Russia, Spain, Belgium, the U.K. and the U.S. Department of Energy's Argonne National Laboratory have discovered a way to efficiently stabilize tiny magnetic vortices that interfere with superconductivity. This breakthrough could remove one of the most significant roadblocks to advances in superconductor technology.

By guessing, clinicians may miss 3/4 of alcohol problems

Primary care clinicians may be missing three-fourths of the alcohol problems in their patients due to relying on hunches rather than screening questions. Regular screening with brief alcohol questions can identify individuals at risk and reduce risky drinking, according to a new study.

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.

Novel test streamlines testing for Huntington Disease

The novel TP PCR test yields accurate results without unnecessary additional testing, improving diagnosis and prognosis by accurately sizing the genetic abnormality characteristic of HD. The test correctly sized 240 of 246 samples, including those with a wide range of CAG repeats.

New citation indicators needed to measure research performance

Researchers argue that traditional citation metrics like journal impact factors and h-index are insufficient for comparing the impact of different scientists or publications in unrelated fields. Percentile-based indicators can provide a more accurate assessment of scientific work.

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.

Wetland trees a significant overlooked source of methane, study finds

Researchers found that wetland trees are a major source of methane emissions, accounting for up to 80% of total emissions. This challenges current models and highlights the importance of including tree emissions in field campaigns. The study's findings have significant implications for understanding methane flux in tropical wetlands.

New hope in fight against multi-resistant germs

Scientists at Helmholtz Centre for Infection Research and TWINCORE are studying patient samples to find biomarkers for infectious diseases. The new antibiotic GSK1322322 targets gram-positive bacteria, including MRSA, with minor adverse effects in Phase I clinical trials.

Team creates MRI for the nanoscale

Researchers create nanoscale MRI using tiny defects in diamonds, enabling detailed visualization of molecules. The technology could revolutionize diagnoses by examining damage on DNA strands or identifying cancer cells with unprecedented resolution.

Researchers discover biological diversity in triple-negative breast cancer

Researchers have identified at least four disease subtypes within triple-negative breast cancers, highlighting the need for targeted therapies that target individual biomarkers. The Basal-like subtype is the majority of TN patients, and therapies targeting its unique biology are crucial for therapeutic progress.

Apple iPhone 17 Pro

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

Busy beavers give Canada geese a lift, study shows

A University of Alberta study reveals that busy beavers contribute to an earlier start for Canada geese's spring nesting by warming ponds and thawing winter snowpack. This helps the birds secure reproductive success.

Study supports regulation of hospitals

A study by Michigan State University researchers found a strong correlation between hospital bed availability and use, even accounting for various factors that may lead to hospitalization. This supports the regulation of hospital beds to align with population health needs.

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.

Finding 'Mr. Right,' how insects sniff out the perfect mate

Researchers discovered that one wasp species uses a novel third ingredient in its sex pheromone, which is recognized by females only when combined with two original scents. This adaptation allows females to distinguish their own species from others, preventing costly interbreeding.

Probiotic-derived treatment offers new hope for premature babies

A new study found that chemicals secreted by good bacteria can reduce the frequency and severity of necrotizing enterocolitis (NEC) in premature infants. The treatment, which uses purified secretions from probiotic bacteria, shows promise as a targeted preventive strategy without the broad effects of steroids.

Rewiring the serotonin system

A team of researchers from the University of Texas Medical Branch at Galveston and the University of Houston has found a new way to influence the vital serotonin signaling system. They have linked malfunctions in this system to various health issues, including depression, addictions, epilepsy, obesity, eating disorders, and more.

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.

We're emotionally distant and that's just fine by me

A new study at Columbia University's Mailman School of Public Health found that people who yearn for a more intimate partnership and those who crave more distance are equally at risk for having a problematic relationship. The study's lead author, David M. Frost, PhD, suggests that finding a way to attain an idealized level of closeness...

Gene associated with high anxiety can have protective effect on the battlefield

Researchers identified a protective effect of excessive threat vigilance on PTSD development in infantry soldiers during combat deployment. The study found that genetic variations in the serotonin transporter gene were associated with this behavior, which can be trained through attention bias modification to reduce PTSD risk.

Origami meets chemistry in scholarly video-article

Researchers at Johns Hopkins University developed self-assembling particles inspired by origami that can be manipulated to fold and seal or open and close. These particles have potential applications in drug delivery, mechanical sensing, bio-sensing technologies, and more.

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.

Sustainable new catalysts fueled by a single proton

A Boston College research team has designed novel small-molecule catalysts triggered by a single proton, enabling efficient and selective fine chemical synthesis. The catalysts, derived from abundant amino acid valine, promote reactions at room temperature with minimal waste generation.

Threat bias interacts with combat, gene to boost PTSD risk

Researchers tracked 1085 male Israeli soldiers to identify predictors of post-traumatic stress disorder (PTSD) symptoms. Soldiers with pre-deployment threat vigilance and an emotion-related gene were more likely to develop PTSD, with a faster reaction time indicating increased threat vigilance.

Epigenetics shapes fate of brain vs. brawn castes in carpenter ants

Research on the Florida carpenter ant reveals that epigenetic regulation plays a key role in distinguishing two worker castes with strikingly different behaviors and physical characteristics. Histone modifications, including those influenced by the CBP regulator, are found to correlate with gene expression levels and cognitive abilities.

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.

Marsh plants actively engineer their landscape

A team of scientists from Duke University and the University of Padova found that marsh plants actively tune their elevations by producing organic soil and accumulating sediments. This complex interplay with the environment helps species stabilize the soil within favorable states, allowing for greater long-term stability.

Protein central to cancer stem cell formation provides new potential target

Researchers have identified FOXC2 as a protein vital to the formation of cancer stem cells and the epithelial-mesenchymal transition in breast cancer. The study found that blocking FOXC2 with the FDA-approved drug sunitinib inhibited the growth of cancer stem cells and reduced metastasis in mice with triple-negative breast cancer.

Scientists should advance management of behavioral norms

Researchers emphasize the importance of understanding how social and personal norms are influenced by behavior to promote long-term environmental changes. The authors suggest that effective policies can induce changes in norms over time, leading to increased public acceptance of environmental measures.

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.

The party in your brain

A team of scientists found that conservatives and liberals use different brain regions when making risky decisions, with 82.9% accuracy in predicting party affiliation.

Tube versus IV feeding in malnourished pediatric cancer patients

A study published in Journal of Pediatric Oncology Nursing found that discomfort with tube feeding is the main reason families prefer IV nutrition. Tube feeding is associated with better gut function and lower infection rates, but perceived discomfort leads to a preference for IV feeding.

Penn vet team uncovers a pathway that stimulates bone growth

Researchers at Penn Vet have identified a new pathway for stimulating bone growth using the protein Jagged-1. This discovery has the potential to treat bone fractures and improve outcomes for patients with rare metabolic conditions like Alagille syndrome.

GPA may be contagious in high-school social networks

A study published in PLOS ONE found that high school students whose friends had higher GPAs were more likely to increase their own scores over time. The researchers also discovered that social connections with weaker academic performers could lead to decreased grades.

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.

Cracking the semantic code

The study proposes that half of a concept's meaning is a summary of how rewarding and risky an object is. The researchers used internet blogs to estimate the number of good or bad things associated with objects, finding that 'evaluation' and 'activity' dimensions were strong predictors of word usage.

CVD time bomb set to explode in Gulf region in 10-15 years

The Gulf region is expected to experience a massive wave of cardiovascular disease in the next 10-15 years, driven by high obesity rates and diabetes prevalence. Prevention services are lacking, but experts call for a public health strategy to promote physical activity and healthy diets.

Detecting cocaine 'naturally'

A team of researchers has adapted natural mechanisms to detect specific molecules like cocaine more accurately and quickly. The new biosensor responds optimally even with a large concentration window, paving the way for applications in cancer-targeting drugs and administration.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Celestron NexStar 8SE Computerized Telescope

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

Negative stereotypes about boys hinder their academic achievement

A new study published in Child Development found that children as young as 4 think boys are academically inferior to girls and believe adults share these stereotypes. Conveying egalitarian messages can help close the gender gap by refraining from practices like dividing classes by gender, according to researchers.

Cheap, strong lithium-ion battery developed at USC

Researchers at USC have created a new lithium-ion battery design that uses silicon nanoparticles to improve capacity and recharge more quickly. The batteries hold three times as much energy as comparable graphite-based designs and can recharge within 10 minutes.

Helping or hovering? A parent's dilemma

A new study shows that college students with overcontrolling parents experience negative well-being outcomes, including depression and decreased life satisfaction. The study suggests that helicopter parenting behaviors can undermine children's autonomy, competence, and social relationships.

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.

Building a biochemistry lab on a chip

Lab-on-a-chip technologies use micro-fabrication techniques to integrate various laboratory functions onto microchips. Researchers have demonstrated the ability to heat nanoliter volume droplets individually and in an array using VLSI silicon-based devices, enabling biochemical reactions and DNA melting detection.

Lower autism risk with folic acid supplements in pregnancy

Women who took folic acid supplements from four weeks before conception to eight weeks into pregnancy had a 40 per cent lower risk of giving birth to children with childhood autism. The findings only apply to a lower risk of childhood autism, the most severe form of autism.

Prenatal folic acid supplementation associated with lower risk of autism

A study of 85,000 Norwegian children found that prenatal folic acid supplementation was associated with a lower risk of autistic disorder. The research suggests that maternal use of folic acid supplements before and early in pregnancy may protect against the development of autism spectrum disorders.

'Get off my lawn:' Song sparrows escalate territorial threats – with video

Researchers discovered a hierarchical warning scheme used by song sparrows to ward off trespassing rivals, including matching the intruder's song, soft songs, and wing waves. The study found that birds who matched the intruder's song were most likely to attack, adding nuance to their complex communication system.

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.