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Science News Archive July 2011


Page 8 of 25

Chronic pain in homeless people not managed well: Study

A study by St. Michael's Hospital found that nearly half of homeless people with chronic pain use street drugs to treat their condition, highlighting the need for improved approaches to managing chronic pain in this population. The study also highlights the importance of community outreach programs and education for healthcare provider...

Link between competing phases in cuprates leads to new theory

Scientists have discovered a link between two competing states of a cuprate superconductor and developed a mathematical theory to describe their relationship. The new theory should help predict the behavior of the material under varying conditions, shedding light on its potential for improving energy efficiency and storage.

Fluke 87V Industrial Digital Multimeter

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

Chromosome number changes in yeast

Researchers found that yeast chromosome complement has decreased in all except one event, a whole genome duplication, where chromosomes fused or broke and recombined. This study sheds light on the evolution of chromosome complements in yeast and other organisms.

'Freaky mouse' defeats common poison

A Rice University study reveals that European house mice have developed resistance to warfarin through two distinct processes: point mutation and horizontal gene transfer. Algerian mice, a desert-dwelling species, are believed to have passed the resistant genome into house mice in Spain or North Africa.

Proteins enable essential enzyme to maintain its grip on DNA

Researchers at Ohio State University identified a family of proteins that close a critical gap in RNA polymerase, enabling it to maintain its grip on DNA and activate genes. This discovery has implications for antibiotic development and could contribute to understanding gene expression in all living organisms.

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.

Smartphone making your eyes tired?

A new study published in the Journal of Vision found that viewers experience more comfort when stereo 3D content is placed behind a screen, rather than in front of it. The researchers observed increased discomfort and fatigue among participants who viewed content in front of the screen.

Breastfeeding may prevent asthma

Research published in the European Respiratory Journal found that children who were exclusively breastfed for 6 months had a reduced risk of developing asthma-related symptoms. The study also showed that the longer duration of breastfeeding was associated with fewer wheezing episodes.

UNC researchers identify seventh and eighth bases of DNA

Researchers at UNC School of Medicine have discovered the seventh and eighth bases of DNA, called 5-formylcytosine and 5-carboxylcytosine. These modified bases are thought to play a role in DNA demethylation and stem cell reprogramming.

Working mothers and the effects on children

A new study by Dr Anne McMunn and researchers from the International Centre for Lifecourse Studies in Society and Health found that working mothers have no significant negative impact on their children's social and emotional development. In fact, children with both parents in paid employment showed better socio-emotional outcomes than ...

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.

Skin sentry cells promote distinct immune responses

A new study reveals that subsets of dendritic cells in the skin can promote unique and opposite immune responses against the same type of infection. The research highlights the critical role of dendritic cells in initiating an effective immune response.

Gardening in the brain

Research reveals microglia cells prune connections between neurons, shaping brain wiring. The discovery could help understand autism and other neurodevelopmental disorders.

With secondhand gene, house mice resist poison

Researchers discover house mice acquired warfarin resistance from Algerian mice through interbreeding, highlighting multiple pathways to trait evolution. This unusual process helps explain rodents' ability to resist poison and informs strategies for controlling evolved resistances.

Targeting toxin trafficking

Researchers discovered that many proteins are required for maximum toxicity of ricin and PE, with differing requirements at multiple levels. Understanding toxin trafficking may lead to designing treatments targeting these toxins and potential synergistic therapies.

Apple iPhone 17 Pro

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

Study suggests obesity accelerates progression of cirrhosis

A recent study found that increased body mass index (BMI) is an independent predictor of clinical decompensation in patients with compensated cirrhosis. The researchers suggest that weight reduction may improve patient outcomes and that measures to reduce BMI could improve the prognosis for patients with advanced liver disease.

1 in 4 gay/lesbian high school students are homeless

A study by Boston Children's Hospital found that 1 in 4 lesbian or gay teens and 15 percent of bisexual teens are homeless. Among homeless teens, those who were gay, lesbian, or bisexual (GLB) were consistently more likely to be unaccompanied than heterosexuals.

As agricultural riches waylay pollinators, an endangered tree suffers

Researchers discovered that trees in Chilean forests relying on hoverflies for pollination fare better when separated by resource-poor pine plantations than by agricultural lands. The 'Circe Principle' explains how abundant resources can slow or prevent pollinator movement, challenging existing conservation models.

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.

Chemists create molecular flasks

Chemists have created molecular flasks that can house other molecules, allowing for the isolation of certain chemical reactions and potential control over chemical reactivity. The flasks are self-assembling and take the shape of a truncated octahedron, with the potential to create new materials with unique properties.

Repairing our inner clock with a 2-inch fish

A team of researchers has identified a common mechanism between humans and zebrafish that regulates the circadian system. The discovery, published in PLoS Biology, could lead to new treatments for mental illness, metabolic diseases, and sleep disorders.

Researchers stumble on colorful discovery

Researchers have discovered modified rhodium that changes color in response to different gases, including nitrogen, oxygen, and carbon monoxide. This finding could lead to the development of more sensitive air quality sensors.

OSC lifts OSU land speed racer toward 400-mph goal

The Buckeye Bullet team, with the Ohio Supercomputer Center, is developing a new electric land speed vehicle to surpass 400 mph. They're using computational fluid dynamics and large-scale simulations to optimize the aerodynamic design and minimize shock waves.

Fingerprinting fugitive dust

Researchers at USDA's Agricultural Research Service (ARS) have created a unique fingerprinting method to identify the source of soil, distinguishing between soils from rural roads and agricultural fields. This innovation has significant implications for managing wind erosion and promoting sustainable agriculture.

Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

An eye gene colors butterfly wings red

Researchers found that a single gene, optix, underlies the diverse red wing patterns of Heliconius butterflies across the Americas. The gene's regulation leads to subtle differences in wing patterns between species.

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.

BUSM/BMC researchers awarded $3.5 million grant from the NIDA

Researchers from BUSM and BMC will implement a clinical model to coordinate narcology and HIV systems of care in Russia, aiming to increase engagement in medical care among HIV-infected IDUs. The LINC project aims to address the missed opportunity of delayed or non-receipt of HIV medical care in Russia.

Study: Regulatory hurdles hinder biofuels market

A new study by University of Illinois researchers highlights the challenges facing the commercialization of emerging liquid biofuels, which could enhance energy security and reduce greenhouse gas emissions. Biobutanol, an emerging biofuel with a higher energy content than ethanol, is seen as a promising alternative to petroleum-based f...

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.

Nanotechnology for water filter

Researchers at the University of Vienna have developed a method called "passive sampling" to measure the affinity of contaminants to carbon nanotubes. This method provides reliable results for realistic applications and can remove pollutants from contaminated water, making it a promising technology for water filtration.

Scavenger cells accomplices to viruses

Cell biologists from the University of Zurich have identified the infection mechanism for type-5 adenoviruses, revealing that viruses use scavenger cells to trigger an immune response and expose shielded receptors on lung epithelial cells. This discovery has implications for both gene therapy and cancer treatment.

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.

A hot species for cool structures

Scientists have determined the 3D structure of a key cellular component using a heat-loving fungus. By analyzing the genome and proteome of Chaetomium thermophilum, researchers were able to identify the proteins that make up the innermost ring of the nuclear pore, a channel that controls what enters and exits a cell's nucleus.

MS research: Myelin influences how brain cells send signals

Researchers at Ohio State University have developed a cell-culture system that mimics the coating of nerve cells with protective myelin, opening up new possibilities for studying multiple sclerosis. The study found that myelin regulates key protein placement and activity in sending electrical signals along hippocampal axons.

Schools failing pupils with sickle cell disease

Research reveals most children with SCD do not feel supported by schools in catching up on absences from class. Schools are often divided on whether others should know a pupil has the condition, fearing it may intensify bullying.

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.

For kids, it's more than just a game

Research by Jean Cæté found that positive youth sports experiences are associated with coaches creating inclusive team environments, assessing individual progress rather than comparison, and providing challenging practices. This fosters initiative, motivation, and citizenship qualities in young players.

News tips from the journal mBio

Researchers discovered a novel mechanism used by bacteria Paenibacillus dendritiformis to cope with overcrowding. A new insect-borne virus, Cavally virus, was also found in mosquitoes in Cote d'Ivoire, which may cause severe disease in humans or animals.

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.

Fantastic Mrs. Fox -- mother knows best for urban fox families

A new study found that red fox mothers determine which cubs disperse from the family group, with genetic relationships influencing dispersal strategy. This discovery has important implications for our understanding of social mammals' evolution and dispersal processes.

Evolution provides clue to blood clotting

Scientists at Washington University School of Medicine used evolutionary clues to reveal how a key clotting protein assembles. They found that two histidines play a crucial role in sensing pH changes and guiding the assembly of von Willebrand Factor, leading to new insights into common bleeding disorders.

Compared to bloggers, journalists go deeper to cover sports

Researchers found that journalists were more likely to cover the cultural aspects of a story, such as race and business, compared to bloggers. This reflects the advantages professional journalists have over bloggers, including better training and resources.

NNI releases 4 workshop reports from the nanoEHS Series

The National Nanotechnology Initiative (NNI) released four reports detailing information used to craft an updated EHS research strategy. The reports outline areas of focus, including human health, instrumentation, and risk management methods.

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.

Scripps Research scientists create vaccine against heroin high

Researchers at Scripps Research Institute develop a highly successful vaccine against heroin high, producing antibodies that stop the effects of heroin and its metabolites. The vaccine shows promise for those trying to break their heroin addiction, with only three out of seven rats self-administering heroin after booster shots.

Fantastic Mrs. Fox

A new study by University of Bristol biologists found that mother foxes determine which cubs stay and which leave their family groups, with dominant females playing a crucial role in dispersal strategy. This unique discovery sheds light on the evolution of social behavior in mammals.

Seeing the S-curve in everything

A new theory by Adrian Bejan, known as the constructal law, predicts the prevalence of S-curves in various fields, including biology, chemistry, and economics. The S-curve pattern is a natural design for flow systems to facilitate access, reducing friction or resistance.

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.

URMC researchers exploring keys to melanoma progression

Researchers at URMC discovered a receptor called GPR56 that plays an important role in cancer progression and may trigger angiogenesis. This discovery could lead to more effective treatments for malignant melanoma by shutting down VEGF production at its source.

Celestron NexStar 8SE Computerized Telescope

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