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Science News Archive May 1999


Page 2 of 5

Stress Speeds Progression To AIDS

Researchers at UNC Health Care found that men with high stress levels and weak social support developed AIDS faster. The study of 82 HIV-infected gay men showed that cumulative stressful events doubled the risk of progressing to AIDS.

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.

Depression May Lower Your Sex Hormones

A study by Dr. Ulrich Schweiger and colleagues found that severely depressed men have lower testosterone concentrations during the day and night, as well as higher cortisol levels. This disturbance of gonadal function may impair sexual function and increase the risk of heart disease and osteoporosis.

Structure Of HDL Cholesterol Determined

Researchers used new techniques to study HDL particles, verifying the lipid bilayer structure and confirming a key finding about protein orientation. The study resolves a long-standing controversy over the structure of HDL, shedding light on its role in cardiovascular health.

Low Cholesterol Extracts A Price

A recent study published in Psychosomatic Medicine found that 39% of women with naturally low cholesterol levels scored high on a depression scale, while 35% scored similarly high on an anxiety scale. The study also linked low-density lipoprotein cholesterol and triglyceride concentrations to depression and anxiety.

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.

AAPS Workshop To Explore Individual Bioequivalence

The AAPS International Workshop on Individual Bioequivalence aims to review available criteria, discuss their pros and cons, and explore various points in drug development and approval. The workshop will focus on evidence for/against a Subject by Formulation interaction, statistical issues, and FDA strategy.

Ordinary Touches Multiply Into Severe Pain For Fibromyalgia Patients

Researchers at the University of Florida have found that fibromyalgia is caused by a neurological abnormality, where the body overreacts to repetitive stimulation. This discovery aims to improve diagnostic tests and treatments for the chronic illness, affecting an estimated 3.7 million Americans.

Apple iPhone 17 Pro

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

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.

Slimy Bacteria Common Cause Of Chronic Infections

Biofilm bacteria are a common cause of persistent infections, such as ear infections and cystic fibrosis pneumonia. Recent advances in understanding biofilms may help develop new therapeutic agents to control these infections.

Media Advisory: 1999 Spring Meeting -- Updated Press Conference Schedule

The AGU Spring Meeting will feature new press conferences on Leonid Meteors, which created a temporary lunar atmosphere, and Yucca Mountain as a potential site for long-term nuclear waste storage. The sessions will also include discussions on Mars Global Surveyor findings and the impact of magnetic storms on Earth.

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.

National Survey: Leg Crossing Is Taboo But Women Indulge Anyway

A national survey found that nearly half of American women (45%) regularly cross their legs, despite being aware of the negative effects on circulation. The study also revealed that leg crossing is often a habit, comfort-driven behavior, and a matter of politeness.

Mother's depression impedes baby's development

Research found depressed mothers' flat-pitched speech hampers infant learning, leading to delays in acquiring language and cognitive milestones. Infants who heard low- or moderate-depression voices spent more time observing a checkerboard pattern.

Diet Can Reduce Risk Of Cardiovascular Disease

A meta-analysis of 37 diet intervention studies found that reducing dietary calories, saturated fat, and cholesterol has a positive effect on serum lipids and cardiovascular risk. The study suggests that adopting healthier eating habits can be an effective way to lower the risk of cardiovascular disease.

Study Reveals Cancer Role Of Mutated Gene

A study published in Molecular Cell reveals that the mutated tumor suppressor gene ARF prevents cellular transformation by blocking p53 degradation, allowing it to stop tumor cell growth. Researchers found that mutations in ARF's Exon 2 are linked to cancer, impairing its ability to localize and block p53 export.

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.

Impulsive Children More Prone To Injuries

A longitudinal study found that impulsive children are more prone to injuries, with those who overestimate their physical abilities experiencing more medical attention. The research suggests targeting vulnerable temperaments in injury prevention programs.

Quality Parenting Helps Kids Cope With Inner-City Stress

Research finds that nurturing and emotionally responsive parents, consistent discipline, and positive expectations for children's future are key factors in helping kids thrive in poor urban environments. Parents of resilient children reported better mental health and more support from friends and family.

Children Benefit Most From Sun Safety Interventions

A new study published in Health Education & Behavior found that children benefit most from sun safety interventions due to high lifetime exposure during childhood. Parents' sun safety habits strongly influence their children's behaviors, while recreation programs' policies are not significantly associated with parents' practices.

'Energy Density' -- Not Fat -- Is Key To Feeling Full While Managing Weight

A Penn State study suggests that eating low-energy-density meals, which contain fewer calories per ounce and are rich in fruits, vegetables, or grains, can help individuals manage their weight while still feeling full and satisfied. The study found that the energy density of food, rather than fat content, plays a key role in satiety.

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.

First Scientific Discovery Made With The Hobby-Eberly Telescope

The Hobby-Eberly Telescope has successfully observed a distant quasar candidate, confirming its status and providing insight into the universe's early evolution. The instrument will also enable detailed study of objects in and near the Milky Way with the addition of two new facility-class spectrographs.

Porous Silicon Lights Way For New Analytical Devices

Researchers at Purdue University have developed a technique that combines porous silicon with mass spectrometry to streamline biochemical analyses. The technique, called desorption ionization on silicon (DIOS), allows for the simultaneous testing of large numbers of compounds in a fraction of the time required by current methods.

The 'Break Even' Cost Of Kidney Transplants Is Shrinking

A recent study by University of Maryland researchers found that kidney transplants are more cost-effective than dialysis, even for the sickest patients. The break-even point for kidney transplants was 2.7 years compared to dialysis, saving $27,000 per year for each patient.

New Areas Of High Biological Diversity Discovered

Biologists have discovered three new hotspots of high biological diversity in New Zealand, Southeast Australia, and Tasmania. The study found that the terrestrial flatworm, a humble but diverse species with over 822 varieties, can act as a model for understanding the distribution of lower invertebrates.

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.

Polish Parliamentarians More Independent Than Western European Colleagues

Polish parliamentarians have significant influence on legislative process due to their right to submit proposals. The Sejm's independence is crucial for its role in stabilizing relations with the presidency and government. Strengthening internal coherence and discipline is necessary for governing parties to maintain this independence.

Dietary Supplements Could Put A Stop To A Royal Curse

Researchers have discovered naturally occurring enzymes that can detoxify porphyrins, building blocks of haemoglobin, in a potential breakthrough for treating variegate porphyria. This rare disorder was passed down through the royal family, including Queen Elizabeth II's first cousin Prince William of Gloucester.

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.

Treating Depression Makes A Healthier Heart

A study found that patients taking selective serotonin reuptake inhibitors (SSRIs) had a reduction in sticky platelets, which can contribute to heart problems. The researchers suggest that improved mood is the key factor behind this effect.

New Procedure Makes A Successful Transplant Possible

A new procedure called High PRA Rescue cleanses blood of harmful rejection antibodies, enabling six patients to receive successful kidney transplants from living donors. The innovative technique, combined with three new anti-rejection medications, has shown promising results in a two-week period.

Undergrads' Device To Help Army Simulate Combat Conditions

Three Johns Hopkins University engineering students build an air-powered hammering device that can deliver up to 45,000 pounds of force to test computer models predicting armored vehicle equipment durability. The device is part of a design project course and aims to improve the accuracy of simulations for real-world battlefield scenarios.

Testosterone Is Mixed Blessing To Men's Health

A study found that middle-aged men with higher testosterone levels are less likely to experience high blood pressure, heart attacks, and obesity. However, they are more likely to engage in unhealthy behaviors such as smoking and excessive drinking.

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.

Future Of Medical Research Funding To Be Focus Of Congressional Briefing

A new report outlining alternative funding sources for medical research will be released at a congressional briefing on May 25. The report suggests funding options and models that can be used in conjunction with the current appropriations process to secure sustained, long-term funding for medical research.

What's Making A Weird Glow At The Centre Of A Twister?

Researchers John Abrahamson and Peter Coleman successfully created stable fireballs in a mini tornado using liquefied petroleum gas, challenging existing theories about ball lightning. The experiment may have industrial applications and shed new light on unexplained UFO sightings.

Engineered Corn Can Kill Monarch Butterflies

Research by Cornell University reveals that genetically engineered corn, designed to protect against pests, can kill monarch butterfly larvae when they come into contact with its pollen. This has significant implications for the long-term survival of the monarch species, which is already facing habitat disruption and other threats.

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.

Walker named a Fellow of the British Royal Society

Alan Walker, a distinguished professor at Penn State, has been recognized by the British Royal Society for his groundbreaking work on human origins. He is one of forty-two new Fellows elected this year and was honored for his distinguished contributions to the world's knowledge of human origins.

Anti-Depressant Drug Shows Promise As Weight-Loss Treatment

A pilot study at Duke University Medical Center found that bupropion SR combined with a 1,600-calorie diet resulted in significant weight loss among non-depressed women. The study showed a 6.21% weight loss in the treatment group compared to 1.56% in the placebo group.

Feminism brings useful innovations to science

Recent feminism has brought deeper changes to specific sciences like medicine, anthropology, archaeology, biology, physics, and mathematics. Medicine has seen increased funding for women's health, such as osteoporosis and heart disease research.

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.

Mouse Map Leads Way To Human Disease Exploration

A new color-coded chromosome mapping system devised by Julie R. Korenberg enables quick localization of known matching genes in humans using mouse DNA, greatly speeding up research into Down Syndrome and other human illnesses. The system has profound implications for the study of human diseases and the development of effective treatments.

After 20 Years, FUSE Finally Nears Launch

After 20 years, NASA's Far Ultraviolet Spectroscopic Explorer (FUSE) satellite is nearing its scheduled June 23 launch. The project faced numerous setbacks, including the Challenger rocket explosion and budget cuts, but ultimately, Johns Hopkins University took over management and implemented cost-saving measures.

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.

Pushing The Limits Of Computer Technology

Researchers use ultraviolet lamps to create thin polymer films with precise patterns, reducing convection issues that affect film uniformity. These films have the potential to replace electronic circuits in all-optical computer systems, increasing efficiency and compactness.