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Science News Archive 2003


Page 31 of 108

Sex selection for social reasons: religious and moral perspectives

According to a survey, allowing sex selection in Germany and the UK would be unlikely to skew biological sex balance. However, experts argue that selecting the sex of offspring raises ethical concerns about parental desires vs. unconditional acceptance of children. Most respondents have no intention of using sex selection techniques, r...

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.

Could diabetes treatments fight cancer?

Researchers identified a link between LKB1, an enzyme that reduces blood glucose levels, and AMPK, which inhibits cell growth. This connection could lead to more effective anti-diabetes drugs, such as metformin, also being used to treat cancer. The study found that LKB1 plays a crucial role in preventing tumor growth by activating AMPK.

Resistance exercise resets the body clock

Researchers found that resistance exercise can alter the expression of clock genes in human skeletal muscle, causing a phase shift similar to winding on (resetting) the muscle clock. This suggests that peripheral clocks can regulate themselves independently of the central clock.

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.

Uninsured face higher death risk from aorta problems

The study found that uninsured patients with abdominal aortic aneurysms are more likely to be diagnosed late, leading to a higher mortality rate. Insured patients who received timely treatment had lower death rates, highlighting the importance of access to regular medical care.

Can heart failure impair thinking?

A new study found significant gray matter loss in the insular cortex and basal ganglia of advanced heart failure patients. The insular cortex was affected on both sides, with greater loss on the right side, while basal ganglia damage was also observed.

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.

Species vs. Species

The San Clemente loggerhead shrike's federal recovery program has hindered the species' co-existence with island foxes. Researchers propose shifting funds from predator control to habitat restoration to support both species. This approach may enable species co-existence, benefiting conservation efforts.

Standard treatment for lung cancer should be changed, say scientists

A new trial found a significant survival benefit from adjuvant chemotherapy in non-small cell lung cancer, increasing patient lifespan by 4.1%. The study suggests that toxicity is still a major concern and calls for better tools to identify patients who will benefit from treatment.

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.

UGA scientist to study effect of air quality on unborn babies

An environmental epidemiologist from UGA aims to investigate how air pollution affects pregnant women and their unborn babies, building on his earlier research in Peru. He plans to measure personal pollution exposure of 100 pregnant women in Trujillo and analyze blood, urine, and cord blood samples.

Ranches key to conservation in rocky mountains

Research supports ranches as effective biodiversity protectors, surpassing nature reserves. Ranches showed higher ground- and shrub-nesting bird densities compared to rural developments and nature reserves.

The European Cancer Patient Coalition - challenges for the future

The European Cancer Patient Coalition is hindered by language barriers, with fewer than 50% of Europeans speaking a second language, including English. Digital divide also persists, with varying internet access across countries, affecting the coalition's ability to operate effectively.

Apple iPhone 17 Pro

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

Prescribed burns can threaten pine Savannah amphibians

Research by Schurbon and Fauth found that prescribed burning negatively impacts pine savannah amphibian diversity and abundance, with species declining in areas burned more recently. The study suggests a 5-year prescribed burn cycle and summer burns can balance the needs of amphibians and longleaf pines.

High blood pressure is a factor in some 'senior moments'

Researchers found that people with high blood pressure have reduced blood flow to the brain compared to those with normal blood pressure, leading to slightly worse scores on memory tests. This vascular remodeling may explain why some individuals experience subtle differences in mental tasks.

Live seafood trade linked to species invasions

The live seafood trade is spreading non-native bivalves across the Pacific Northwest, posing a significant threat to local ecosystems. Researchers found that nearly as many ocean quahogs survived in the short-term as established species, highlighting the need for regulations and monitoring programs to control introductions.

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.

Exercise measures identify heart disease in seemingly healthy women

A study published in The Journal of the American Medical Association found that women who performed below average in peak exercise capacity and recovery rate were more likely to die from heart disease. Regular exercise was shown to combat risk factors, with moderate physical activity improving exercise capacity by 15-30%.

Livestock health sensors and wireless data storage in the works

A $899,996 National Science Foundation grant will fund a five-year study to create an infrastructure for remote monitoring of cattle health. The system aims to alert livestock producers and veterinarians to emerging disease and protect the confidentiality of herd health information.

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.

Moving the target for osteoporosis treatment

A major axis within bone cells regulates bone production and loss, providing a potential new target for treating debilitating osteoporosis. Local regulation of bone mass is now believed to occur primarily in the bone, not in the brain as previously thought.

Tai chi chih boosts shingles immunity in older adults

A new study finds that tai chi chih significantly increases immune cell levels and improves physical functioning in older adults with shingles. The exercise program was comparable to hip replacement surgery in boosting immunity and reducing symptoms.

Results from first clinical trial using GVG to treat addiction

The study found that eight out of twelve patients achieved periods of abstinence of more than 28 consecutive days, and all eight were drug-free at the time of publication. Patients reported significant reductions in craving and improvements in self-esteem, family relationships, and work activities.

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.

A test for sensitivity of normal tissue to radiation damage?

Researchers identified specific genetic variations linked to differences in normal tissue radiation damage, potentially allowing for personalized treatment approaches. The study's findings suggest that a person's genetic pattern can predict their tolerance to radiotherapy, enabling more effective treatment and reduced side effects.

Epilepsy drug can stop cocaine use in addicts

A study led by NYU Langone Health found that epilepsy drug GVG helped hard-core cocaine addicts stay clean for over 60 days. Forty percent of participants achieved sobriety without leaving their environment, gaining weight and living with their families.

Celestron NexStar 8SE Computerized Telescope

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

IT advances underground construction

A new grant from NSF's ITR Program will support the development of an integrated system, AMADEUS, which uses IT for real-time data gathering and computational modeling. This can lead to safer, more efficient, and economical underground construction methods.

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.

Virginia Tech engineer aims to tame the wild chip

Michael Hsiao is developing graph-theoretic algorithms to reduce chip verification time, which could decrease costs and improve accuracy. His tools will be useful for the entire semiconductor industry, addressing the increasing complexity of modern chips.

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.

Talented Hokies research brain impacts while battling Aggies

Virginia Tech researchers are developing a brain impact monitoring system using the HITS sensor system, which measures impacts in football helmets. The system aims to identify the level at which impacts begin to result in injury and inform the design of better sports headgear.

Smart blending technique could change way plastics made

A new smart blending technique optimizes plastic materials for maximum effectiveness, enabling the creation of tougher, electrically conductive, and porous plastics. The technology, developed at Clemson University, has potential applications in food packaging, personal hygiene products, automotive uses, and even breakfast cereals.

Tai Chi class boosts shingles immunity

A randomized, controlled clinical trial found that Tai Chi Chih increased immunity to the varicella zoster virus in older adults at risk for herpes zoster. The study showed significant improvements in both immunity and physical functioning without any negative effects.

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.

Earliest European modern humans found

The discovery sheds light on early modern human biology and their archaic origins. The fossils, dating back 34,000-36,000 years, reveal a mix of modern and archaic characteristics.

Fluke 87V Industrial Digital Multimeter

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

Bones from French cave show Neanderthals, Cro-Magnon hunted same prey

A study of fossil records at Grotte XVI found that Neanderthals and Cro-Magnon both hunted a wide variety of game, including reindeer and red deer. The researchers also discovered a sharp drop in cave bear numbers from Neanderthal to Cro-Magnon times, suggesting competition for living space may have led to their extinction.