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Science News Archive November 2005


Page 8 of 16

How do you feel? Genetics are partly to blame

A Saint Louis University study found that genetics account for approximately 33-36% of how we feel physically and mentally. The researchers examined the health-related quality of life of 2,928 middle-age men using twins, revealing a strong genetic influence on our perception of health.

Doctors and patients should discuss use of alternative medicines

A study found that 45% of heart patients use complementary or alternative medicines, but only 39% believe their doctors should know. Physicians must educate patients on risks and provide safe alternatives to prevent life-threatening interactions with prescribed cardiac medications.

Engineered blood vessels may be an option in cardiac bypass

Researchers have developed a new tissue-engineered vessel made from the patient's own cells, which can replace synthetic grafts used in coronary bypass surgeries. The first human trial showed promising results, with no failures noted during the first five months of use.

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.

Fewer heart failure patients die when hospitals make efforts to improve care

A two-year study involving over 2,500 heart failure patients found that hospitals that cooperated to deliver proven care and educate patients saw lower death rates and rehospitalization rates. The project used a toolkit of standard admission orders, clinical pathways, and discharge checklists to ensure optimal care.

Sweet snacks could be best medicine for stress

Researchers found that consuming sugar snacks reduces glucocorticoid levels in rats, which can help alleviate physical and psychological stress. The study suggests that sweets made from natural sugar may be a healthy 'self-medication' option for managing stress.

Meta Quest 3 512GB

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

Hopkins study may change rules for treating heart failure

Researchers found that people with nonsystolic heart failure can refill their hearts properly, but struggle with pumping blood during exercise. This challenges conventional wisdom and suggests alternative therapies, such as pacemakers or drugs that enhance blood vessel dilation, may be beneficial for these patients.

Apple iPhone 17 Pro

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

The dangerous legacy of lead

Research shows lead may cause additional long-term health problems, disrupting immune cells that fight off pathogens. An estimated 434,000 US children under age 5 have elevated lead levels in their blood.

Sperm stem cells closer to being like embryonic stem cells

Researchers at UT Southwestern have developed methods to keep sperm precursor cells from differentiating into sperm, allowing them to freeze and thaw the cells. This breakthrough could lead to alternative sources for embryonic stem cells and enable the development of new male contraceptives. The study's findings also pave the way for g...

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.

Tamoxifen reduces risk of breast cancer, follow-up study confirms

A follow-up study to the NSABP Breast Cancer Prevention Trial confirms tamoxifen's effectiveness in reducing invasive and noninvasive breast cancer risk. The study found a 43% reduction in invasive breast cancer risk and a 37% reduction in noninvasive breast cancer risk.

New study shows chiropractic is cost-effective in treating chronic back pain

A new study has found that chiropractic care is a cost-effective treatment option for chronic low-back pain, with lower costs and comparable patient outcomes compared to traditional medical care. Chiropractic care resulted in clinically significant improvements in pain and disability reduction for both acute and chronic patients.

Older female fish prefer imperfect male mates, study finds

A new study by Ohio University's Molly Morris and colleagues found that older female swordtail fish spend more time with asymmetrical males than symmetrical males. This contradicts previous studies suggesting females prefer symmetrical markings as a sign of genetic fitness.

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.

Aspirin reduces stroke risk in women, not men

A meta-analysis of over 95,000 patients found that aspirin significantly reduces the risk of stroke in women, with a 17% reduction in ischemic stroke and a 24% reduction in hemorrhagic stroke. In contrast, aspirin has no protective effect in men and may even increase the risk of bleeding strokes.

Innovative research set to push boundaries of cancer care

Researchers have discovered a novel bacterial protein azurin that can selectively target and kill cancer cells, while also using electric pulses to deliver a gene therapy that stimulates an immune system attack. Additionally, a small nanoparticle has been developed to reduce side effects of radiation and chemotherapy treatment.

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.

Lasers help scientists delve into understanding

Researchers at Lawrence Livermore National Laboratory used fluorescence resonance energy transfer (FRET) to study the transcription of genes in DNA. They found that the initial and final stages of this process occur simultaneously, contradicting earlier theories that proposed separate processes for these stages.

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.

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.

Seasonal depression, anxiety affects hamsters, study finds

Researchers at Ohio State University found that hamsters exposed to limited daylight before birth exhibited increased depressive symptoms as adults. The study suggests a link between seasonal light exposure, sex, and depression in hamsters, providing potential insight into human seasonal affective disorder.

Wheezing prevalence patterns established by age 6

Researchers found that wheezing prevalence follows distinct patterns by age 6 and stability of lung function is maintained through school years. Children with early wheeze tend to have lower lung function levels but stable rates.

UCSB researchers develop hybrid silicon evanescent laser

UCSB researchers have developed a hybrid silicon evanescent laser that could alleviate limitations in microelectronic systems. The laser uses InAlGaAs quantum wells to provide optical amplification and has the potential to enable highly integrated laser sources with intelligent opto-electronic devices.

Fluke 87V Industrial Digital Multimeter

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

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.

Risk higher for truckers in eleventh hour

A recent Penn State study suggests that increasing the truck driver's hours of service beyond 10 hours leads to a significant rise in the risk of crashes. The most concerning increase occurs within the 9th, 10th, and 11th hours of driving.

US heart patients receive more transfusions than international patients

Research at Duke University Medical Center found that US heart patients receive blood transfusions 84% more often than Europeans and 38% more often than Asians. The study revealed wide differences in bleeding and transfusion rates among heart patients globally, with the US having significantly higher rates.

Celestron NexStar 8SE Computerized Telescope

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

High tech imaging tells the tale of plaque from the inside out

Researchers developed a new technique using time-resolved laser-induced fluorescence spectroscopy to identify plaque characteristics that contribute to weakening of the plaque. The technique was found to be 97 percent effective in identifying high-risk lesions, which are more likely to rupture and block blood supply.

Restricting diet may reverse early-stage Parkinson's disease

Researchers at OHSU found that mice consuming fewer calories experienced a boost in essential neurochemical glutamate, which reversed a Parkinson's-induced drop. The study suggests dietary restriction may be beneficial in early-stage Parkinson's disease.

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.

Backyard treatment may yield leukemia treatment

Researchers have discovered a key process underlying CML progression and identified an agent that can block it. Forskolin restores normal cell functioning in Gleevec-resistant cells, offering new treatment options for patients with advanced or resistant disease.

Why consumers make conflicting choices

Researchers found that pursuing a goal can liberate people to pursue another, incompatible goal. Making plans for a goal also leads to the immediate satisfaction of conflicting desires. The study aims to address the behavior of individuals holding multiple goals.

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.