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Science News Archive 2011


Page 210 of 311

Unlocking the metabolic secrets of the microbiome

A new study in Cell Metabolism reveals the microbiome's significant effects on metabolism in mice, highlighting butyrate as a primary energy source for colon cells. Butyrate levels have been linked to dietary and clinical implications, including colorectal cancer prevention.

The mirror neuron system in autism: Broken or just slowly developing?

A new study suggests that individuals with autism have a weak mirror neuron system in their youth, but it increases with age and becomes unusually high thereafter. This delay in development may be related to increased capacity for social function or responsiveness to rehabilitative treatments.

COST to receive additional $45 million from European Commission

The European Commission has allocated an additional 30 million euros to COST, increasing the total budget to 240 million euros for the second half of the EU Seventh Framework Programme. This funding boost is a recognition of COST's governance and potential to drive excellence and innovation in Europe.

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.

Turning 'bad' fat into 'good': A future treatment for obesity?

Researchers at Johns Hopkins University have successfully transformed 'bad' white fat into 'good' brown fat in rats, reducing their calorie intake and weight. This breakthrough finding could lead to new obesity treatments for humans by targeting the transformation of white fat into brown fat.

First rainforests arose when plants solved plumbing problem

Scientists discovered that ancient rainforests had more veins per unit area in leaves of flowering plants, allowing for increased water availability and carbon capture. This finding suggests that improved plumbing systems in these plants contributed to the evolution of modern rainforest ecosystems.

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.

MRI identifies primary endometrial and cervical cancer

A new study found that radiologists using MRI can correctly identify the primary site of cancer in 79% of cases, even when biopsy results are inconclusive. This improves patient outcomes by providing more accurate treatment options.

Simple exercise improves lung function in children with CF

A new study by Johns Hopkins Medicine shows that simple exercise can improve lung function and overall fitness in children with cystic fibrosis. Patients who increased their exercise capacity by 10 or more walking intervals showed significant improvements in lung function scores.

Curtains that 'quench' noise

Researchers from the Swiss Federal Laboratories for Materials Science and Technology (EMPA) have developed a new curtain fabric that is lightweight yet absorbs sound. The new textiles absorb five times more sound than conventional translucent curtains, making them suitable for various rooms such as offices and auditoriums.

Apple iPhone 17 Pro

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

Peripheral venous catheters pose infection risk

A new study from Rhode Island Hospital estimates that over 1 in 10 catheter-related bloodstream infections due to Staph aureus in hospitalized adults are caused by infected peripheral venous catheters. The study highlights the substantial medical burden of complications from these infections.

Mouse study turns fat-loss/longevity link on its head

A new mouse study has found that maintaining body fat rather than losing it can lead to longer lifespan in mice. The findings contradict the widely held view that weight loss is essential for extending life, suggesting that individuals with difficulty losing weight may benefit from dietary restriction more.

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.

Study helps explain behavior of latest high-temp superconductors

Researchers found that ordered vacancies in iron pnictides can give rise to superconductivity, providing a potential explanation for the similar behavior between different compounds. This discovery has implications for the broader use of these materials on an industrial scale.

Penn study shows drop off in coronary artery bypass surgeries for heart patients

A new study from the University of Pennsylvania School of Medicine reveals a substantial decrease in coronary artery bypass graft (CABG) surgery, while rates of utilization of percutaneous coronary intervention (PCI) have remained unchanged. The data analysis showed a 15% drop in annual CABG surgery rates between 2001 and 2008.

Agent selectively targets malignant B cells in chronic leukemia, study shows

A new experimental drug, PCI-32765, has shown promising results in selectively targeting and killing malignant B cells in chronic lymphocytic leukemia (CLL) patients. By inhibiting key signaling molecules and promoting apoptosis, the agent reduces the risk of life-threatening infections associated with current CLL therapies.

HIV drug could prevent cervical cancer

Researchers discovered that lopinavir selectively kills HPV-infected non-cancerous cells while leaving healthy cells relatively unaffected. The study suggests a potential treatment for HPV-related cervical cancer using locally applied lopinavir cream or pessary.

Marine snails get a metabolism boost

A new study of marine snails reveals a significant boost in metabolism between 200 and 80 million years ago. The researchers suggest that this change was driven by the shift from plant-based to predatory diets, which led to an evolutionary arms race.

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.

Formidable fungal force counters biofuel plant pathogens

Researchers have sequenced the genomes of two rust fungi that infect poplar trees, a promising bioenergy feedstock. The study reveals the characteristics of these pathogens and their methods of attacking host plants, providing key findings for developing disease control strategies.

Dependency and passivity -- you can have 1 without the other

Researchers suggest dependent individuals may exhibit proactive behavior to impress authority figures and maintain relationships. This new perspective offers a shift in how therapists treat dependent patients, focusing on turning unhealthy dependency into healthy one.

Teen consumer patterns in China and Canada

A study published in the Journal of Business Research found that Chinese adolescents are heavily influenced by their parents, while Canadian teens are more likely to make independent decisions. Parenting practices and cultural values play a significant role in shaping teen outlooks and decision-making patterns.

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.

Sense of justice built into the brain

A new study found that the brain has an automatic reaction to unfairness in financial fairness games, linked to increased amygdala activity. Targeting this region can reduce aggression and increase tendency to accept unfair distributions of money.

Rutgers offers hope in new treatment for spinal cord injuries

Scientists have created a chemically synthesized siRNA molecule that decreases RhoA protein production, promoting tissue healing and reducing pain after spinal cord injuries. The minimally-invasive treatment shows promise for treating over 250,000 people living with spinal cord injuries in the US.

Study evaluates relationship of urinary sodium with health outcomes

A large cohort study found a significant association between lower urinary sodium excretion and an increased risk of cardiovascular death. In contrast, higher sodium excretion was not associated with increased hypertension or cardiovascular disease complications. The study's findings challenge current recommendations on reducing salt i...

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.

Controlling brain circuits with light

The invention of optogenetics enables scientists to control and observe brain circuits using genetically encoded molecules targeted by light. This technique reveals how entire neural circuits operate, allowing researchers to determine the roles of specific neurons in various behaviors and brain functions.

Climate change analysis predicts increased fatalities from heat waves

Researchers at Johns Hopkins Bloomberg School of Public Health analyzed climate change scenarios to predict excess deaths per year attributable to heat waves. The study found that the city of Chicago could experience between 166 and 2,217 excess deaths per year due to heat waves, with mitigation efforts expected to reduce this impact.

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.

Webcam technology used to measure medications' effects on the heart

Researchers at Brigham and Women's Hospital developed a cost-effective tool to detect cardiotoxicity, a common side effect of drugs. The webcam-based biosensor enables real-time monitoring of cardiac cells' beating rates and could accelerate the drug discovery process by identifying toxic effects early on.

Ranking research

Researchers have proposed a new approach to ranking the relevance of research papers using social bookmarking tools. The CiteRank algorithm combines similarity and static rankings to enhance search results. It was found that users preferred recent papers but also rated highly classic papers based on priority rating.

Popular diabetes drugs' cardiovascular side effects explained

TZDs act on PPARγ, enhancing sodium transport and water reabsorption, but also have direct effects on kidney channels, explains a recent Cell Metabolism study. The findings may lead to combination therapy and selective PPARγ modulators to prevent massive fluid retention.

Robots learn to share, validating Hamilton's rule

Scientists used simple robots to test how altruism evolves over generations. The results matched Hamilton's rule, suggesting that helping relatives increases their chances of passing on genes. This study has implications for swarm robotics and the evolution of cooperation in nature.

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.

'Nutcracker Man' had fundamentally different diet

Researchers analyze carbon isotope ratios in fossil teeth to reveal Paranthropus boisei's diet was 77% C4 plants, similar to grazing animals like warthogs and hippos. The findings contradict the common view of the hominid feeding on nuts and seeds.

Novel program is saving newborns’ lives in developing countries

A new program called Helping Babies Breathe is teaching basic techniques to resuscitate newborns immediately after birth, resulting in a 50% decrease in mortality rates. The program focuses on simple interventions like drying the baby, keeping them warm, and suctioning their mouth within 'The Golden Minute'.

Ecstasy associated with chronic change in brain function

Research suggests that recreational Ecstasy use is associated with chronic changes in brain function, particularly increased brain activation in visual processing areas. The study's findings may have implications for the potential therapeutic benefits and risks of Ecstasy use, as well as its impact on mental health over time.

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.

Why the eye is better than a camera

Researchers discovered that the human eye's horizontal cells boost photoreceptor signals while preserving contrast, allowing for sharper images with less sacrifice of shadow detail. This positive feedback mechanism is found across vertebrates and is thought to be responsible for the eye's ability to detect faint details near edges.

A boring life -- the Asiatic wild ass in the Mongolian Gobi

The Asiatic wild ass is critically endangered due to habitat destruction and hunting. The species' range is limited to areas with low biomass production, forcing it into unproductive habitats. Conservation efforts could benefit not only the wild ass but also other rare mammals by opening up migration corridors.

Thylacine hunting behavior: Case of crying wolf?

Researchers at Brown University study thylacine bones and find they were solitary, ambush-style predators, unlike dogs that hunt in packs. Their unique arm structure allowed for subduing prey after surprise attacks, differing from other large canid species.

Grazing as a conservation tool

A new study by the Wildlife Conservation Society found that rotational grazing techniques can benefit both cattle and wildlife in native pasturelands. The results show a greater forage base, producing larger, more valuable cattle while reducing incentives for deforestation and habitat loss.

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.

Succulent plants waited for cool, dry Earth to make their mark

Researchers propose that a prolonged dry spell and lower atmospheric carbon dioxide levels drove the rise of cacti and other succulents, leading to rapid speciation between 5-10 million years ago. This coincided with species explosions in other plant groups, including C4 grasses, which burst onto the scene during the same time period.

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.

Market lighting affects nutrients

A study by USDA scientists found that spinach leaves exposed to continuous light during storage were more nutritionally dense than those in dark conditions. The researchers discovered a significant increase in levels of carotenoids and vitamins C, E, K, and B9, or folate, in the continuously lit spinach.

World's smallest atomic clock on sale

Researchers at Sandia National Laboratories have developed a tiny atomic clock that is 100 times smaller and uses 100 times less power than its predecessors. The portable Chip Scale Atomic Clock (CSAC) has various specialized applications, including timing operations for miners and divers in deep-sea explorations.

How should systematic reviews consider evidence on harms?

A new study suggests that systematic reviews should evaluate a broad range of study designs, including randomized controlled trials and observational studies, to build a complete picture of potential harm. This approach may improve the generalizability of the review without loss of validity.

Amygdala detects spontaneity in human behavior

Researchers found that the amygdala is active when listening to improvised melodies and sensitive to fluctuations in loudness and timing. A network of areas also shows increased activity when detecting spontaneous behavior.

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.