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Science News Archive 2005


Page 115 of 165

'Surprising' findings reported about iron overload

A massive study of 100,000 individuals found that Caucasians have the highest prevalence of hemochromatosis/iron overload due to a specific gene mutation. In contrast, Asian and Pacific Islanders have high blood iron levels despite lower genetic mutations, suggesting a different underlying cause.

Meta Quest 3 512GB

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

How the environment could be damaging men's reproductive health

Studies suggest that environmental pollutants like POPs can change sperm distribution and contribute to male reproductive disorders. A Swedish study found a slight increase in Y chromosome-bearing sperm in fishermen exposed to persistent organochlorine pollutants.

OHSU study finds ginkgo beneficial for MS symptoms

A recent OHSU study suggests that ginkgo biloba may improve attention in MS patients with cognitive impairment, with minimal side effects. The study found that patients taking ginkgo performed better on a test measuring attention and executive functions compared to those receiving a placebo.

Wisconsin researchers identify sleep gene

Scientists at the University of Wisconsin-Madison have identified a key gene involved in regulating sleep duration, which could lead to new approaches to treating sleep irregularities. The study found that mutations in this gene affect the amount of sleep individuals need and can even impact life span.

Apple iPhone 17 Pro

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

Innovative fountain pen writes on the nanoscale

Scientists have created a Nanofountain Probe that enables sub-100 nanometer molecular writing, a capability previously unattained. The device employs a volcano-like dispensing tip and capillary-fed solutions to achieve high-resolution direct writing.

Permitting workers to carry weapons ups the chance that they will be killed

Researchers found that permitting workers to carry guns on the job significantly increases the risk of homicide, with a nearly seven-fold increase in worker fatalities compared to workplaces where no firearms are allowed. This finding highlights the need for employers to reassess their policies on workplace gun permits.

Romond heads up study and reduces breast cancer recurrence

A recent study, led by Dr. Edward Romond, found that adding trastuzumab to chemotherapy significantly improves prognosis for women with aggressive HER-2 positive breast cancer. The study involved over 3,300 patients and demonstrated substantial benefits of combining trastuzumab with chemotherapy.

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.

Second consecutive UH win puts national spotlight on pharmacy student

Dana Hausmann, a fourth-year UH pharmacy student, won the contest for the second consecutive year, competing against 90 contenders from across the country. The victory highlights the college's emphasis on effective communication with patients, reflecting the quality education students receive from faculty.

Access to mammography may worsen

A 2001-2002 survey of 45 mammography facilities in three states found that 44% did not have enough radiologists on staff, and 46% reported difficulty maintaining qualified technologists. Scheduling delays for diagnostic and screening mammograms were common, with some facilities reporting waits of up to four weeks.

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.

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.

Parent/child businesses stronger than those of cousins and colleagues

Research by Ensley and Pearson found that parent-child businesses exhibit higher levels of shared strategic cognition and lower conflict compared to familial and non-family teams. This suggests that the long-term relationship between family members may lead to stronger business outcomes.

Royal Society study on adaptability of fish to warming oceans

A Royal Society study found that Antarctic fish can compensate for the initial negative impact of elevated temperatures and regain their original performance levels despite being several degrees warmer. The study suggests that rising temperatures do not necessarily have a long-term negative impact on biodiversity.

Pi seems a good random number generator - but not always the best

A study by Purdue University researchers found that pi's randomness is acceptable for data encryption and physics problems, but not always the best. Some commercially available random number generators outperformed pi in certain tests, suggesting that the quality of the algorithm used can impact randomness.

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.

The power of drug advertising: Patients often get what they ask for

The study found that doctors prescribed antidepressants more often when patients asked for them, with 53% of the time when Paxil was requested. This raises concerns about the overuse of antidepressants in mild cases and the impact of direct-to-consumer advertising on healthcare quality.

A frog's life is food for thought

A study by PhD student Rebecca Cramp found that the green-striped burrowing frog can maintain its gut function despite prolonged starvation, allowing it to digest massive meals efficiently. The discovery has implications for human survival during starvation, as humans often experience severe gastrointestinal issues after re-feeding.

Viral protein influences key cell-signaling pathway

A study published in AIDS Research and Human Retroviruses found that the viral protein p12 increases activity of a gene controlling production of p300, a key regulator of cell signaling and proliferation. This could provide insights into how HTLV-1 maintains lifelong infection and impacts immune cell survival.

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.

Women more financially vulnerable post break-up

A study published in the Journal of Marriage and Family reveals that women are more financially vulnerable after a break-up, with a 33.1% drop in household income compared to 10% for men. The percentage of women living in poverty increases from 20% to almost 30%, particularly among African American and Hispanic women.

Moderate alcohol consumption enhances the formation of new nerve cells

Research suggests that moderate drinking enhances new nerve cell formation in adult brains, which may contribute to long-term effects of alcohol on the brain. The study's findings have sparked interest in understanding the role of these new cells in cerebral activity and their potential link to addiction.

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.

Abnormal liver tests in a Mediterranean population

A study of Southern Italian residents found that over 12% had abnormal liver values, with a significant correlation between age, gender, and excessive alcohol consumption. Nonalcoholic fatty liver disease emerged as an important cause of altered liver tests in the region.

'Dead zone' area in Gulf could be increasing, researchers say

Researchers from Texas A&M University have found lower oxygen levels in the dead zone area of the Gulf, which could lead to more severe hypoxia and fish kills if physical conditions continue. The team studied an area between Southwest Pass, La., and the Calcasieu ship channel.

UW-Madison gains two new stem cell programs

The university's new regenerative medicine program aims to translate basic stem cell science into therapies for degenerative diseases. The program will draw on faculty from five Medical School departments and be supported by $700,000 in annual funding.

Pulsating ultrasound enhances gene therapy for tumors

Researchers used pulsed-HIFU to treat tumors in mice with a reporter gene, achieving nine times higher uptake compared to untreated tumors. The technique has potential for enhanced delivery of therapeutic genes across various tissues without scars or needles.

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.

Age is not a limiting factor in combined therapy for lung cancer

A clinical trial found that elderly patients with locally advanced limited stage small cell lung cancer can benefit from combined modality therapy, with similar two- and five-year survival rates compared to younger patients. However, severe pneumonitis was more common in the elderly group.

High risk of second cancers in survivors of childhood soft tissue sarcomas

Children with childhood soft tissue sarcomas have a six-fold increased risk of developing a second cancer, with absolute risks estimated at approximately 3% by age 20. The risk is highest within the first five years post-treatment, particularly for females and those treated with radiation or chemotherapy.

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.

Molecular models advance the fight against malaria

Researchers developed disease models using yeast to test resistance to atovaquone and created a practical tool to design new anti-malarial drugs. This study provides the first quantitative explanation for malaria's drug resistance, enabling the development of new treatments within 3-5 years.

CABG in elderly patients

The study found that mortality decreased over time for both young and old patients, but the risk of postoperative stroke remained unchanged among older patients. Older patients undergoing elective procedures may experience similar outcomes to those of younger patients if there is a clinical need for CABG.

Relatively few US adults report having a healthy lifestyle

A study of over 153,000 US adults found that only three percent maintain a healthy lifestyle with all four characteristics: nonsmoking, healthy weight, and regular physical activity. Most Americans fail to meet even one of these key habits, highlighting the need for comprehensive prevention activities.

NIH awards funding to biotech firm for heart disease

Arteriocyte, a startup company spun out from Case Western Reserve University, is developing a novel stem cell therapy to generate new blood vessels and replace damaged ones in patients with heart disease. The therapy has shown encouraging results in animal studies and plans for patient testing are pending NIH and FDA approval.

Future computer: Atoms packed in an 'egg carton' of light?

Researchers have created an 'egg carton' of light with tiny holes that can contain single atoms, a crucial step towards making quantum computing more practical. The design enables faster computing than traditional chips and has potential applications in fields like astrophysics, genetics, and materials science.

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.

PNAS highlights for the week of April 25-29

Differences in UV perception allow songbirds to signal with private communication, while chestnut trees go silent during winter due to circadian clock gene regulation. A fungus has an energy-generating mechanism similar to bacteria, enabling it to harness light for proton pumping

Waste not, want not

A team of researchers from Penn State University has developed a bacteria-driven cell that produces hydrogen for fuel while simultaneously cleaning wastewater. The innovation utilizes a microbial fuel cell to harness the power of microorganisms to generate electricity and purify water.

Sapphire stars in nanotube supporting role

Researchers at the University of Southern California found that sapphire surfaces can self-arrange carbon nanotubes into useful patterns. This phenomenon occurs only on specific surfaces, particularly vertical slices with certain crystalline orientations.

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.

Genetic screening for iron blood disorder feasible in the workplace

A study of 11,800 adults found that genetic screening for haemochromatosis was well-received by participants, with low anxiety levels and no discrimination from insurance companies. The authors argue that the benefits of screening outweigh the risks, making it a cost-effective option for preventing iron accumulation.

Low level of extinction during ice age linked to adaptability

A study by Matthew Powell found that brachiopods living near the equator suffered high extinction rates during the late Paleozoic ice age, while those living at higher latitudes were more resilient. The research suggests that human-induced environmental changes may be causing modern marine species to become extinct.

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.

Stem cells from brain transformed to produce insulin at Stanford

Researchers at Stanford University School of Medicine have developed a new method to transform human neural stem cells into insulin-producing cells. The breakthrough could potentially lead to new ways of transplanting insulin-producing cells into people with diabetes and provide a cure for the disease.

Data suggest bypass surgery free of long-term brain effects

A study suggests that CABG surgery may cause mild and transient cognitive changes in some patients, but these effects do not persist beyond three months. The authors argue that the procedure is improving and that the population undergoing surgery is becoming older and sicker, which may contribute to the observed cognitive deficits.