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Science News Archive 2004


Page 66 of 135

Vollum scientists find new form of dopamine transmission

Researchers at Vollum Institute found that dopamine molecules are released from midbrain nerve cells in a targeted manner, traveling to receptors within milliseconds. The study's findings suggest new therapeutic targets for Parkinson's disease and substance abuse.

System to monitor heat panels could safeguard future spacecraft

Researchers at Purdue University are developing a system to continuously monitor heat panels on future spacecraft for subtle damage, which could lead to accidents if left undetected. The system uses vibration and sound measurements to detect damage in real-time, making it ideal for periods of highest stress during takeoff and reentry.

Leading scientists design new framework for biodiversity conservation

The study's findings suggest that current conservation planning approaches may be hindering species protection. Instead, scientists recommend a more dynamic business plan approach, leveraging market uncertainty and landowner motivation to safeguard habitat for highly threatened species.

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.

Cell death protein has surprising role in cell migration

Researchers discovered that a cell death protein, IAP, plays a surprising role in restoring cellular movement in fruit fly ovaries. By studying engineered flies with dysfunctional Rac protein, they found that IAP can compensate for the lack of functional Rac, allowing cells to migrate properly and restore fertility.

New model explains why costly insect 'outbreaks' hard to predict

Researchers developed a mathematical model that accurately reproduces gypsy moth population outbreaks, combining host-pathogen and predator dynamics. The model resolves the irregular timing of outbreaks and accounts for spatial synchrony, paving the way for applications to other forest insects and small mammals.

Apple iPhone 17 Pro

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

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.

NIAID expands West Nile virus treatment trial

The NIAID is conducting a clinical trial to test the safety and effectiveness of Omr-IgG-am, an antibody-based product derived from Israeli donors, in treating West Nile virus infection. The study aims to provide preliminary data on the treatment's effectiveness against encephalitis, a brain inflammation caused by WNV infection.

APS recognizes Intel high school finalists for experiments in physiology

The American Physiological Society (APS) has announced the winners of its annual awards for high school students conducting research in physiology. The four award winners are Allison Landstrom, Samuel Finlayson, John Luo, and Jason Pellegrino, who studied various aspects of glucose homeostasis and lung function.

Growth study of wild chimpanzees challenges assumptions about early humans

Researchers found that wild chimpanzees have a slower rate of tooth development compared to captive animals, challenging assumptions about hominid growth patterns. The study suggests that modern humans are not as different from Homo erectus as previously thought, and that a larger body size does not require a longer time to grow.

Climate-based model to predict West Nile virus activity

Researchers develop a system to predict West Nile virus risk based on climate factors, including temperature. The model will provide early warnings for public health professionals and serve as a model for other vector-borne disease risks.

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.

Hormone replacement therapy should start early

A Cornell University-Stanford University meta-analysis of 30 clinical trials found that women starting HRT within two years of menopause had a lower total mortality risk. The study also showed significant reductions in hip fractures and recurrent urinary tract infections, but no change in breast cancer deaths.

Rural African men claim AIDS as sign of masculinity

Young men in rural Malawi associate HIV with masculinity and engage in risky behavior to demonstrate virility. This misunderstanding of AIDS risk has significant implications for future research and HIV prevention education.

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.

Africans take anti-HIV meds at a higher rate than many anticipated

In a study published in the Journal of Acquired Immune Deficiency Syndromes, researchers found that African participants took on average 91-94% of prescribed HIV medications. The study, which followed 34 participants over 12 weeks, used multiple adherence measures and observed high rates of viral suppression.

Comparing primate genomes offers insight into human evolution

A recent study published in PLOS Biology compared the genomes of humans, chimpanzees, bonobos, gorillas, and orangutans to identify variations in gene copy numbers. The researchers found over 1,000 genes with changes in copy number, with humans showing the highest number of increased copy numbers, particularly in brain-related genes.

Vioxx in high doses causes hypertension

Researchers at Vanderbilt University Medical Center found that chronic high-dose consumption of Vioxx raises blood pressure and increases the risk of serious heart problems. A substantial number of patients continue to receive high doses of the drug, despite evidence suggesting its potential harm.

Will the insured sacrifice to help cover the uninsured? New study suggests yes

A new study by Michigan Medicine suggests that insured individuals are willing to make sacrifices to help cover the costs of the uninsured. When given the opportunity to discuss their concerns and priorities in a group setting, many participants chose to cover both adults and children, with 76% opting for some form of coverage. The res...

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.

UW study: Migrating birds offer insight into sleep

Researchers discovered that migrating birds sleep less during migration periods and still perform normally. However, they experience impaired performance when not migrating, similar to humans with sleep disorders. The study provides an intriguing model for studying mechanisms of seasonal mood disorders.

NASA's Aura satellite launch postponed

The launch of NASA's Aura satellite has been delayed due to an outstanding issue with a solid-state recorder. The new launch date is set for July 14, and media personnel are advised to meet at the main gate of Vandenberg Air Force Base on that day.

Celestron NexStar 8SE Computerized Telescope

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

Los Alamos computers probe how giant planets formed

Scientists used computer models to analyze the internal structures of Jupiter and Saturn, finding that heavy elements like iron are concentrated in Saturn's core. The research uses data from shock compression experiments and helps improve models of the planets' formation.

First medical test on CD gets good results

Engineers at Ohio State University have developed a patent-pending technology that automates the ELISA biochemical test on a compact disc, significantly reducing the time required for manual testing. The CD-based system detects a sample of rat antibody in just one hour, using only one-tenth the usual amount of chemicals.

Study links virus to aggressive breast cancers

A study found that mouse mammary tumor virus (MMTV) is linked to aggressive breast cancers, particularly in North African countries. The virus was found in 74% of Tunisian samples but only 36% in US samples, suggesting geographic differences in prevalence.

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.

Study reveals evolution on the (butterfly) wing

Researchers at Duke University uncover how two genes control the evolution of line and eyespot patterns in butterflies and moths. The study, published in Current Biology, sheds light on the developmental basis of wing patterns and their connection to biodiversity.

A genetic model for hereditary spastic paraplegia (HSP) disease

A genetic model for hereditary spastic paraplegia (HSP) disease has been developed, showing that the spastin gene regulates microtubule stability to modulate synaptic structure and function. The study found that specific drugs can remedy defects in synaptic function caused by changes in neuronal spastin levels.

Vertigo can be treated at home

Benign paroxysmal positional vertigo (BPPV) is an inner ear problem causing spinning or whirling sensations when moving the head. A study found that performing modified Epley's and Semont maneuvers at home can lead to significant symptom relief for 95% of participants.

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.

Nearly half of L.A. county residents get almost no exercise

A recent study found that nearly half of Los Angeles County residents engage in little to no physical activity, with sedentary behavior more prevalent among those with depression or poor health. The study also highlights the importance of promoting physical activity as part of overall wellness, beyond just weight loss.

Sequential signals choreograph embryonic tubule formation

Research found that hepatocyte growth factor (HGF) coordinates cellular behaviors for tubule development through sequential regulation of ERK and matrix metalloproteases. The study used MDCK cells to examine molecular events during tubulogenesis, revealing distinct regulatory subprograms acting at different times.

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.

Racial variations in nursing home resident vision loss

A study examining racial variations in nursing home resident vision loss found cataract was the leading cause of low vision for both African American and white residents, with higher prevalence among African Americans. The study highlights the need for intervention programs aimed at providing surgical services to this population.

Molecular traffic cop directs cellular signals

Researchers have discovered a new inhibitor called hSef, which regulates the Ras/ERK MAP kinase cascade by limiting ERK activity to specific regions of the cell. This discovery provides insights into how cellular signals are localized and controlled within the cell.

Another fringe benefit for highly paid employees: More fun at work

A new study found that highly paid workers reported more cohesion and solidarity among their colleagues, and were more likely to participate in social activities with co-workers. Highly paid workers tend to have jobs with more freedom and autonomy, leading to richer social lives.

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.

New study in moths shows insects not entirely ruled by instinct

Researchers found that sphinx moths can learn to associate specific odors with food, demonstrating a complex learning process. The study's findings have wide-ranging applications, including potential uses in defense industry and law enforcement for detecting biological and chemical weapons.

Small not necessarily different

Researchers at Georgia Institute of Technology and NASA found that nanosprings exhibit mechanical properties similar to macroscale springs. The findings suggest other nano materials may behave similarly to their macroscale counterparts.

Lifelong career adds up to top honors for UH math professor

Roland Glowinski, a renowned mathematician at the University of Houston, has been awarded the Theodore von Kármán Prize for his sustained outstanding contributions to mechanics and applied computational mathematics. He will give a special lecture on numerical simulation of incompressible viscous flow with moving or free boundary: appli...

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.

XsalF comes to the fore in brain regionalization

A recent study by Takayuki Onai et al. reveals that XsalF, the Xenopus homolog of spalt, regulates forebrain and midbrain-specific gene expression. The research demonstrates direct linkage between XsalF expression and forebrain/midbrain identity.

Appetite-stimulating hormone levels decrease after gastric bypass surgery

A study published in Archives of Surgery found that patients who underwent Roux-en-Y gastric bypass surgery experienced significant declines in ghrelin levels, a hormone that stimulates appetite. The findings suggest that complete division of the stomach contributes to this decline and may play a key role in weight loss.

Report outlines steps needed to lessen smallpox threat

The report recommends the development of antiviral drugs against smallpox due to its high lethality and ease of transmission. Research on poxvirus mechanisms and animal models is crucial to understand how the virus kills and develop effective treatments without using antiviral drugs.

Fluke 87V Industrial Digital Multimeter

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

Latanoprost safe and well tolerated for glaucoma treatment

A study found latanoprost to be safe and well-tolerated in reducing intraocular pressure (IOP) for patients with primary open-angle and exfoliation glaucoma. The researchers also reported a mild incidence of increased iris pigmentation, primarily affecting patients with green-brown or yellow-brown eyes.