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Science News Archive 2011


Page 217 of 311

Study: Reasonable quantities of red pepper may help curb appetite

Research from Purdue University found that consuming red pepper can manage appetite and burn more calories after a meal, especially for individuals who do not consume the spice regularly. Red pepper consumption increased core body temperature and reduced hunger for fatty, salty, and sweet foods in non-regular consumers.

Apple iPhone 17 Pro

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

Snooze control: Fatigue, air traffic and safety

A recent surge in reports of air traffic controllers falling asleep on the job highlights the need for drastic change to improve safety. Researchers suggest that changes such as extended breaks between shifts and mandatory rest periods could mitigate the problem.

Zeroing in on the elusive green LED

Researchers at Rensselaer Polytechnic Institute have developed a new method for manufacturing green-colored LEDs with significantly enhanced light extraction, internal efficiency, and light output. This breakthrough brings the team closer to their goal of developing high-performance, low-cost green LEDs.

Narcotic pain relief drug overdose deaths a national epidemic

In 2007, US unintentional drug poisoning deaths reached epidemic proportions, with prescription opioid overdoses driving the crisis. Opioid pain medications are involved in more overdose deaths than heroin and cocaine combined, according to a CDC report.

Catastrophic amphibian declines have multiple causes, no simple solution

Researchers conclude that amphibian population declines are complex and multifaceted, driven by various natural forces and human activities such as habitat destruction, climate change, and disease. This understanding highlights the need for a comprehensive approach to address the crisis and avoid exacerbating the problem.

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.

OSA launches new journal, Optical Materials Express

The new journal, Optical Materials Express, launched by OSA, explores the intersection of optics and materials science, offering rapid online publication and open-access features. The inaugural issue includes research on metamaterials, microlasers, and chiral optical materials.

$4.8 million study will fight child obesity in California

A $4.8 million federal grant will help UC Davis discover ways to maintain healthy weights among Mexican-heritage children in California. The 'Ninos Sanos, Familia Sana' study aims to provide practical tools and education for families to adopt healthy eating habits.

Lollipops with side effects

A recent study by Max Planck Institute researchers discovered that ants can recognize the distinctive body odor of caterpillars after they consume sugary secretions from wild tobacco plant trichomes. The caterpillars develop a unique odor profile, which is then detected by predatory ants, making them easier to locate and feed on.

Study finds keys to working with Latino church to fight domestic abuse

A new study from North Carolina State University identifies cultural factors that social-service providers and others need to understand to form effective partnerships with Latino church leaders in addressing domestic violence. These factors include the importance of acknowledging traditional male and female roles in Latino cultures, a...

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.

Beetle bling: Researchers discover optical secrets of 'metallic' beetles

Beetle researchers have discovered that the unique structural arrangements of exo-skeletal chitin layers in their elytra create a metallic appearance by reflecting light through different refractive indices. This phenomenon enables the beetles to produce striking gold and silver colors, similar to those found in precious metals.

New perspectives on ion selectivity

Contributors from different disciplines discuss ion selectivity using crystal structures, electrophysiology, and computational methods. The series provides an ongoing forum for experts to discuss scientific questions and controversies.

Pelvic organs given the slip by the protein fibulin-5

Researchers have identified a key role for fibulin-5 in preventing pelvic organ prolapse (POP) by facilitating elastic fiber assembly and inhibiting MMP9 activity. This discovery may lead to nonsurgical treatments targeting elastic fiber-degrading proteins.

A study analyzes the actual role of R+D's in patents

Researchers developed econometric models to study relationship between R&D and patents, estimating significant nonlinear effects of unobservable innovations. The quality of patents affects the impact of R&D on future innovations, with high-cited patents showing stronger effects.

Celestron NexStar 8SE Computerized Telescope

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

JCI table of contents: April 25, 2011

A team of researchers has identified a key role for the protein fibulin-5 in preventing pelvic organ prolapse (POP) in mice. Fibulin-5 prevents POP by facilitating the assembly of normal elastic fibers and inhibiting the activity of MMP9, a protein that degrades these fibers. Increased levels of MMP-9 were found in vaginal tissue sampl...

MIT researchers use virus to improve solar-cell efficiency

Researchers at MIT have developed a novel method to enhance solar-cell efficiency by utilizing viruses to assemble carbon nanotubes on a surface. This technique has shown significant improvements in power-conversion efficiency, with enhancements up to 10.6 percent.

Fighting HIV in South Africa should focus on couples, study finds

A new study in South Africa found that HIV-positive individuals take almost as much risk in their sexual behavior when they know their partner is HIV-negative or don't know their status, as when they know their partner is already infected. Couples-based HIV counseling is recommended to address this issue and reduce transmission.

Gladstone scientist makes key innovations in stem-cell technology

A Gladstone scientist has made two significant stem-cell discoveries, creating powerful new approaches for using stem cells and stem-cell-like technology. Dr. Sheng Ding reveals novel and safer methods for transforming embryonic stem cells into large numbers of brain cells and adult skin cells into neural stem cells.

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.

Third brother wins gold at NJIT

Faizan Naqvi, a junior at NJIT, wins Goldwater Scholarship for research in solar physics. He is the third Naqvi brother to receive the award, following brothers Mohammad and Salman who also won Goldwater Scholarships.

Anti-inflammatory drugs reduce effectiveness of SSRI antidepressants

Researchers at Rockefeller University found that anti-inflammatory drugs decrease the efficacy of selective serotonin reuptake inhibitors (SSRIs) in treating depression and obsessive-compulsive disorder. The study suggests that this may be due to the overlap between depression, inflammation, and Alzheimer's disease.

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.

HIV infection may be a risk factor for heart failure

A study found that HIV infection is associated with an increased risk of heart failure, even after adjusting for traditional risk factors. Patients with high baseline HIV-1 RNA levels also showed a higher risk of heart failure.

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 create stable, self-renewing neural stem cells

Researchers at University of California - San Diego School of Medicine and colleagues report a game-changing advance in stem cell science: the creation of long-term, self-renewing neural precursor cells from human embryonic stem cells that can be directed to become many types of neuron. The new process promises to have broad applicatio...

Leader beliefs about followers impact company success

A study by UC Riverside finds that managers' conceptions of employees can be self-fulfilling prophecies affecting job satisfaction, relationships, and trust. Leaders with positive conceptions tend to treat their employees positively, while those with negative conceptions have a negative impact on followers.

Increased computer use by adolescents cause for concern

Researchers found a strong association between high computer use and engagement in illicit drug use, drunkenness, and unprotected sex among adolescents. High computer use was associated with a 50% increased risk of engaging in these behaviors.

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.

Researchers report widespread use of medications among pregnant women

A recent study found that medication use among pregnant women is widespread and varies by socioeconomic status, maternal age, race/ethnicity, and state of residence. The study also revealed a significant increase in the use of prescription medications during the first trimester, with antidepressants showing dramatic increases.

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.

Meta Quest 3 512GB

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

'Going off the grid' helps some bacteria hide from antibiotics

Researchers at Texas A&M University discovered that certain bacteria can render themselves dormant in response to antibiotic stress, degrading internal antitoxins and damaging metabolic processes. This 'sleeping' mechanism allows the bacteria to avoid antibiotics, but could potentially be awakened by a complementary chemical.

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.

ASPO announces 2011 award winners in pediatric otolaryngology research

The American Society of Pediatric Otolaryngology (ASPO) recognizes outstanding achievements in pediatric otolaryngology research through its annual awards. This year's winners include Yuemeng Dai for his work on involving hemangiomas and Stephanie Maturo for her research on intraoperative laryngeal electromyography in children with voc...

Targeted agent selumetinib shows promise in biliary cancer

A phase II study of selumetinib has shown promising results in patients with advanced biliary cancer, with significant tumor shrinkage and weight gain observed. The drug blocked the MEK protein, which is often damaged in biliary cancer cells, suggesting a new standard of care may be established

Phage hunting students publish in PLoS ONE

Twelve Washington University students isolated and characterized 18 novel phages, including two from St. Louis, in a research project supported by the Science Education Alliance. The findings provide insights into genome architecture and evolution of mycobacteriophages.

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.

Novel microorganism 'Nitrososphaera viennensis' isolated

Researchers have isolated a new species of ammonia oxidizing archaeon from soil, named Nitrososphaera viennensis. The discovery has significant implications for agriculture, as ammonia oxidation affects nitrogen availability for plants and groundwater nitrate levels.

Protein levels could signal that a child will develop diabetes

Georgia Health Sciences University researchers are exploring whether low levels of interleukin-1 receptor antagonist (IL-1ra) can identify children at risk for developing type 1 diabetes. They also plan to investigate using IL-1 inhibitors to prevent the disease.

Fluke 87V Industrial Digital Multimeter

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

Olsen, Drake, Schoenwolf receive highest honors from anatomy society

Bjorn R. Olsen, Richard Drake, and Gary C. Schoenwolf received the highest awards from the American Association of Anatomists for their outstanding contributions to anatomical sciences, with Olsen receiving the Scientific Achievement Award, Drake the Distinguished Educator Award, and Schoenwolf the Exemplary Service Award.

Wild hogs: Researchers examine impact of feral pigs in eastern N.C.

Feral pigs in eastern North Carolina have been found to host significant numbers of parasites that can be transmitted to humans, including Toxoplasma gondii and Trichinella. The study's findings highlight the potential health risk posed by feral pigs to both domestic swine and humans.

Radar shows promise for detecting concussions in athletes and soldiers

Researchers at Georgia Tech have developed a radar system that can detect concussions by analyzing a person's gait pattern. The system, which is faster and less intrusive than existing techniques, uses a 10.5 GHz continuous wave radar to identify anomalies in an individual's walk. This could help coaches and commanders quickly decide i...

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.