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Science News Archive 2008 - Page 156


Page 156 of 240

Most ethnic minority teens don't hang out with ethnic school crowds

Research finds that most ethnic minority teens avoid ethnically-oriented crowds in high school, despite potential benefits for identity and pride. However, certain factors such as friendship groups, socioeconomic status, and experiences with discrimination can lead to association with these crowds.

SourceSociety for Research in Child Development·JournalChild Development·DateMay 15, 2008
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.

Medical College of Wisconsin researchers identify proteins that help develop mammalian hearts

The study identifies GATA4 and GATA6 as crucial proteins controlling heart cell formation. Without these proteins, embryonic stem cells fail to develop normal hearts. The findings have significant implications for the production of heart cells from stem cells and may help unravel the mechanisms behind congenital heart disease.

SourceMedical College of Wisconsin·JournalDevelopmental Biology·DateMay 15, 2008

Geneticists at the American Museum of Natural History trace the evolution of St. Louis encephalitis

A new analysis of the genome of St Louis encephalitis has shed light on its evolution, tracing the virus back to South America and identifying a single mutation that made it pathogenic to humans. The research suggests that population dynamics and point mutations played a key role in the virus's adaptation to humans.

SourceAmerican Museum of Natural History·JournalMolecular Phylogenetics and Evolution·DateMay 15, 2008
Apple iPhone 17 Pro

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

Therapeutic vaccine prolongs survival and improves quality of life

A new therapeutic vaccine has shown promising results in prolonging survival and improving the quality of life for men with metastatic prostate cancer. The adenovirus/PSA vaccine demonstrated strong immune responses to PSA, leading to improved patient outcomes.

SourceAmerican Urological Association·JournalUrology·DateMay 15, 2008

Plant biologists discover unexpected proteins affecting small RNAs

Researchers have found that plants regulate their own genes using small RNAs, similar to how they silence foreign viral RNA. This discovery has implications for fields such as plant pathology, cancer research, and potentially even combating climate change by understanding how plants respond to pathogens.

SourceSalk Institute·JournalDevelopmental Cell·DateMay 15, 2008
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.

New study casts further doubt on risk of death from higher salt intake

Researchers analyzed data from a US national survey and found that lower sodium diets were associated with a significantly increased risk of cardiovascular disease. The study casts doubt on long-held assumptions about the risks of high-salt diets.

SourceAlbert Einstein College of Medicine·JournalJournal of General Internal Medicine·DateMay 15, 2008

Study finds parents use cough medicines on under-2s despite the warnings

A recent Australian study found that over 40% of parents have used cough medicine for children under 2 years old, despite warnings from health authorities. The most commonly used medication was paracetamol, and nearly half of parents gave their children anti-histamine-containing medications to treat colds.

SourceUniversity of Melbourne·DateMay 15, 2008

Americans must consider cost and effectiveness when comparing and choosing medical interventions

The American College of Physicians recommends establishing a national research organization to improve physician and patient access to clinical and cost-effectiveness information. This would help address the current lack of reliable data on healthcare interventions' effectiveness, leading to more informed decision-making.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateMay 15, 2008

Study takes a step toward better defining fatigue

Researchers identified three primary themes of fatigue in cancer patients undergoing standard radiation therapy: loss of strength, major effects on energy levels, and physical sensations. The study aims to develop a single definition of cancer-related fatigue, enabling healthcare professionals to intervene more effectively with patients.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateMay 15, 2008
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.

Teens' perception that they are liked found to be at least as important as actually being liked

A new study published in Child Development found that teenagers who feel good about themselves and are comfortable with their peers can be socially successful without being popular. The research suggests that adolescents' feelings of confidence in their own social standing are a protective factor for long-term social functioning.

SourceSociety for Research in Child Development·JournalChild Development·DateMay 15, 2008

New findings on ocean nitrogen

A new study by an international team of scientists found that around one-third of the nitrogen entering the world's oceans from the atmosphere is man-made. This has significant implications for global climate change as it leads to increased marine biological activity and CO2 uptake, producing nitrous oxide emissions.

SourceUniversity of East Anglia·JournalScience·DateMay 15, 2008
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.

Dr. Anthony Fauci reflects on 25 years of HIV

Dr. Fauci outlines the peaks and valleys of HIV/AIDS research, from initial diagnosis challenges to breakthroughs with protease inhibitors and combination therapies. He emphasizes the need for continued research into a cure and prevention through vaccine development.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNature·DateMay 15, 2008

Teenage girls still experience harassment

A study of 600 teenage girls from diverse backgrounds found that they continue to experience sexism, with 90% reporting sexual harassment. Girls' attitudes towards themselves and society influenced their perceptions of sexism, while learning about feminism and feeling pressure to conform to gender stereotypes also played a role.

SourceSociety for Research in Child Development·JournalChild Development·DateMay 15, 2008

AUA 2008: Low cholesterol leads to lower PSA

A study of 1,214 men prescribed cholesterol-lowering drugs found that PSA levels decreased after starting statins and correlated with LDL cholesterol decline. The results suggest a potential role for cholesterol in prostate cancer development and progression.

SourceAmerican Urological Association·JournalUrology·DateMay 15, 2008
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.

Look to the future: New drug reduces one cause of vision loss

A new small molecule inhibitor of Src kinases was found to eliminate VEGF-induced fluid accumulation in the retina of mice and rabbits. The approach, which involved topical application or intravenous injection, showed promise for reducing vision loss due to VEGF-mediated blood vessel permeability.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateMay 15, 2008

New Mount Sinai research tracks effects of addictive drugs on brain

Researchers at Mount Sinai School of Medicine have discovered a new window into the brain, revealing how addictive drugs trigger permanent changes in brain cells. The study's findings provide clues for targeting addiction with new drugs.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalScience·DateMay 15, 2008
Fluke 87V Industrial Digital Multimeter

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

Preventing falls important for stroke patients

A study found that stroke patients are at high risk for falls and subsequent injuries after leaving the hospital. Researchers recommend fall prevention strategies such as lower leg strengthening, balance retraining, exercise programs, home hazard assessment, and modification to prevent falls in these vulnerable individuals.

SourceAmerican Heart Association·DateMay 15, 2008

AUA 2008: Definition of premature ejaculation by International Society for Sexual Medicine

The International Society for Sexual Medicine (ISSM) has established an evidence-based definition of premature ejaculation, which is characterized by early ejaculation and negative personal consequences. This new definition aims to improve diagnosis and treatment options for men suffering from premature ejaculation, allowing them to se...

SourceAmerican Urological Association·JournalUrology·DateMay 15, 2008

M. D. Anderson nurses find empowerment in PACTs

The Professional Action Coordinating Teams (PACTs) at M. D. Anderson Cancer Center have seen a significant increase in participation among nurses, with a 50% growth in one year. This growth is attributed to the short commitment of time, decisive action, and leadership opportunities provided by PACTs.

SourceUniversity of Texas M. D. Anderson Cancer Center·DateMay 15, 2008
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.

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.

Cancer patients' quality of life directly relates to their survival

Mayo Clinic researchers found that baseline quality of life is a strong predictor of survival in cancer patients, with scores above 83 associated with increased survival time. The study suggests that identifying quality of life deficits can help physicians intervene and improve patient outcomes, potentially extending their length of life.

SourceMayo Clinic·DateMay 15, 2008

MIT creates new material for fuel cells

MIT engineers developed a new material that increases the power output of direct methanol fuel cells by more than 50 percent. The new material is also less expensive and has potential uses in other electrochemical systems, such as batteries.

SourceMassachusetts Institute of Technology·JournalAdvanced Materials·DateMay 15, 2008

Culture affects how teen girls see harassment

A study of 600 adolescent girls found that 90% experienced sexual harassment, with varying levels of reporting depending on age, socioeconomic status, and exposure to feminist ideas. Girls who felt pressure to conform to gender stereotypes or were unhappy with traditional roles were more likely to report sexism.

SourceUniversity of Kentucky·JournalChild Development·DateMay 15, 2008
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.

Monarch butterflies help explain why parasites harm hosts

Researchers found that female monarchs with intermediate parasite loads were long-lived and laid many eggs, while those with light loads also thrived but had fewer infected offspring. The study provides evidence for the 'trade-off hypothesis' in a natural system.

SourceUniversity of Georgia·JournalProceedings of the National Academy of Sciences·DateMay 14, 2008
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.

NC State astrophysicist discovers youngest known supernova in Milky Way

Dr. Stephen Reynolds and his team discovered the youngest known supernova remnant G1.9+0.3, estimated to be around 100-140 years old, using Chandra X-Ray Observatory images from 2007 and 1985. The discovery suggests that a supernova explosion occurred relatively recently, providing insights into the life cycle of galaxies.

SourceNorth Carolina State University·JournalThe Astrophysical Journal Letters·DateMay 14, 2008

Scientists decipher fruit tree genome for the first time

Researchers have successfully sequenced the papaya genome, revealing a complex evolutionary history and providing valuable insights into fruit tree biology. The study also identified genetic mechanisms underlying arboreal development and seed dispersal, with potential implications for other crops in the Brassicales order.

SourceUniversity of Granada·JournalNature·DateMay 14, 2008

Scientists aim to unlock deep-sea 'secrets' of Earth's crust

Scientists from Durham University are exploring the Mid-Atlantic Ridge tectonic plate boundary using robots to map individual volcanoes and collect rock samples. The research aims to shed light on the timescales behind Earth's crust formation and related tectonic plates.

SourceDurham University·DateMay 14, 2008
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.

Studies confirm greenhouse mechanisms even further into past

Scientists have confirmed the link between greenhouse gas levels and global warming with new analysis of Antarctic ice cores extending back 800,000 years. The study reveals that current concentrations of carbon dioxide and methane are unprecedented in the past.

SourceOregon State University·JournalNature·DateMay 14, 2008
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.

Premier issue of Environmental Justice just published

The premier issue of Environmental Justice explores adverse environmental burdens on marginalized populations, legal challenges, and activism. The journal aims to provide a balanced assessment of environmental inequalities locally, nationally, and globally.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalEnvironmental Justice·DateMay 14, 2008

Aprotinin associated with increased risk of death

A Canadian clinical trial has found that aprotinin increases the relative risk of death by 50% compared to other antifibrinolytics used to prevent blood loss during heart surgery. The study involved over 2,000 patients and showed that tranexamic acid or aminocaproic acid are safer choices for cardiac surgical patients.

SourceThe Ottawa Hospital·JournalNew England Journal of Medicine·DateMay 14, 2008

Genetic variation linked to sugary food

A genetic variation in the GLUT2 gene is associated with higher intakes of sugars in two distinct populations. The study found that individuals with the variation consistently consumed more sugars, regardless of age or sex.

SourceAmerican Physiological Society·JournalPhysiological Genomics·DateMay 14, 2008

Study confirms link between mothers' depression, young children's injuries

Young children whose mothers are severely depressed are nearly three times more likely to suffer accidental injuries than other children in the same age group. Mothers with chronic depression may not properly safeguard their environments, leading to poor supervision and increased injury risks.

SourceUniversity of Alabama at Birmingham·JournalJournal of Pediatric Psychology·DateMay 14, 2008