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Science News Archive 2004


Page 126 of 135

Early fevers associated with lower allergy risk later in childhood

A recent study found that children who experienced fewer fevers in their first year were less likely to develop allergies by age 6. Researchers discovered that fever-inducing infections involving the eyes, ears, nose, or throat appeared to be associated with a lower risk of developing allergies.

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.

Making of mouse marks move toward 'mitochondrial medicine'

Researchers have successfully created a new kind of mouse by replacing its genetic material with that from another species, paving the way for studies on mitochondrial medicine. The goal is to improve treatment options for people with currently untreatable diseases, such as infertility, diabetes, and neurodegenerative disorders.

Race may be a factor in treatment of rectal cancer patients

A recent study found racial disparities in the delivery of care to black and white rectal cancer patients. Black patients were diagnosed at a younger age and had more advanced disease, leading to differences in treatment outcomes. The study suggests that improved access to state-of-the-art surgical care for minority patients with recta...

Death rates for certain complex surgeries lower at teaching hospitals

A study found that teaching hospitals have lower operative mortality rates for pancreatic, hepatic, and esophageal resections. Higher volume at teaching hospitals is a contributing factor to these differences in outcomes. The findings suggest that hospital structure and process variables play a role in variation in surgical outcomes.

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.

U.S. push for diesel poses risk to public health, scientists say

Scientists say that replacing gasoline-fueled vehicles with cleaner diesel technology could lead to a significant increase in surface ozone levels, particularly in the Southeast. The study found that pollutants such as nitrogen oxides and hydrocarbons also increased, highlighting the need for more effective pollution control measures.

Depression may be a risk factor for heart disease, death in older women

A study of 93,676 healthy older women found that depressive symptoms are significantly related to cardiovascular disease risk and increased mortality rates. Women with depression were more likely to develop hypertension, have a history of stroke or angina, die from cardiovascular disease, and experience all-cause mortality.

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.

Survey shows impact of psoriasis is more than skin deep

A new survey reveals that people with psoriasis experience severe effects on self-confidence, work, and social life. The study found that three-quarters of those with severe psoriasis reported low self-confidence, while 48% of those with moderate psoriasis also suffered from it.

Genes influence memory in families with Alzheimer's disease

A study of 1,036 individuals from 266 families discovered that genetics significantly impacts memory performance, accounting for up to 80% of the variation. The influence of genes on memory abilities was stronger than previously thought and appears to be relatively unaffected by the presence of Alzheimer's disease.

'Dry eye' in women may be linked to sex hormones

Women with premature ovarian failure experience higher rates of dry eye due to ocular surface damage, not reduced tear production. Sex hormones play a multifaceted role in maintaining healthy moisture on the eye's surface.

Clozapine effective for controlling dyskinesias in people with severe Parkinson's

A clinical trial found that low-dose clozapine can reduce levodopa-induced dyskinesias (LIDs) in people with severe Parkinson's disease by around 50 percent. The study suggests that clozapine may mitigate the transmission of toxically high levels of levodopa, thereby reducing its potency and lessening the severity and duration of LIDs.

Apple iPhone 17 Pro

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

Combining surgery with novel treatment may improve survival rates

Researchers found that a combination of surgery and intraperitoneal hyperthermic chemotherapy (IPHC) can increase survival rates for patients with peritoneal carcinomatosis. The procedure, which delivers heated chemotherapy directly to the tumor site, has shown promise in improving quality of life and extending survival.

Breast cancer vaccine study

Researchers at the University of Pennsylvania are conducting a clinical trial to evaluate the safety and efficacy of a telomerase peptide-based vaccine against breast cancer. The study aims to stimulate an immune response that can target and kill cancer cells, with the goal of improving patient health.

Study examines inappropriate medication prescribing for elderly patients

A study examined trends in potentially inappropriate drug prescribing at ambulatory care visits among older adults from 1995 to 2000. The research found that pain relievers and central nervous system drugs made up most of the inappropriate prescriptions, with rates higher for patients with multiple prescriptions and women.

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.

Stroke news tips for Saturday, Feb. 7, 2004

A study of 524 patients found Mexican-Americans are more likely to have a family history of stroke. Researchers believe this population is ideal for studying family stroke risks due to significant associations between ethnicity and stroke factors.

A little stress may go a long way toward boosting skin's immunity

Research at Ohio State University found that acute stress can significantly boost the immune system's response, with stressed animals showing a two-to-four times higher reaction to chemical or protein antigens. This effect was observed even after several weeks to months of re-exposure without further restraint.

Sleep shortage takes toll on middle schoolers

A recent study found that middle school students who slept fewer hours experienced lower self-esteem, higher levels of depression, and poorer grades. The research, published in Child Development, suggests that a good night's sleep is crucial for adolescents' health and academic success.

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.

Stroke news tips for Friday, Feb. 6, 2004

Researchers present findings on various stroke treatments, including the effectiveness of IV magnesium in reducing death and improving functional outcome. Additionally, studies show promise for statins, oxygen therapy, and clot-busting therapies in improving neurological outcomes after ischemic stroke.

Reverse-direction movement of a molecular motor

Scientists successfully reverse the direction of a molecular motor by rotating its lever arm, achieving a previously unknown movement. The breakthrough demonstrates the potential for protein design and engineering to create novel properties with well-defined functions.

Lucky number? Seven factors may increase clot buster use for stroke

A study of 34 academic medical institutions found that seven criteria, including written procedures and emergency staff training, significantly increased the use of tPA for stroke patients. Hospitals that met all seven criteria saw a 4.7 times greater chance of treating ischemic strokes with tPA.

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.

Manual techniques may ease tough deliveries without need for episiotomy

Researchers found that manual techniques can reduce permanent brachial plexus damage in babies by up to 50% compared to episiotomies. This approach also minimizes severe perineal injuries in mothers. The study suggests a safer and more effective alternative for managing severe shoulder dystocia during childbirth.

Metabolic syndrome may be an important link to stroke

A new study suggests that treating metabolic syndrome's risk-factor components might reduce stroke risk before Type 2 diabetes develops. Men with metabolic syndrome have a 78% greater stroke risk, while women have more than double the risk compared to those without the condition.

World famous rock paintings three-times older than previously thought

Archaeologists at Newcastle University and Australian National University estimate rock paintings in the uKhahlamba-Drakensberg are up to 3,000 years old. This new study uses accelerator mass spectrometry radiocarbon dating to contribute significantly to understanding San hunter-gatherer society.

Meta Quest 3 512GB

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

Kidney injury's harmful effects on bones blocked in mice

Scientists give mice with damaged kidneys injections of BMP-7 to prevent adynamic bone disorder, a condition causing weakening and distortion of bones. The treatment is shown to be effective in normalizing bone cell counts and structures.

Algorithms help diagnose cancer

Researchers developed an algorithm, Q5, using PCA and LDA to differentiate between healthy and diseased blood samples. The algorithm achieved virtually 100% accuracy for ovarian cancer and approximately 95% accuracy for prostate cancer.

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.

Angioplasty clears clogged brain arteries

A new study suggests that angioplasty can significantly reduce the risk of stroke in patients with clogged brain arteries. The procedure, which uses a tiny balloon to open blocked vessels, has been shown to be more effective than medication alone in improving outcomes.

Pesticide exposure among agricultural workers varies by job task

Researchers found that agricultural workers who thin orchards have detectable levels of pesticides in their house and vehicle dust, posing a risk to children. Children of thinners were more likely to have detectable pesticide metabolites in their urine, supporting the theory that workers track home pesticides on their clothing and shoes.

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.

Popular drug for chest pain may promote blood vessel damage

A new study found that nitroglycerin can cause long-term blood vessel damage in rats, leading to increased risk of heart disease and mortality. The drug's ability to dilate blood vessels was found to be short-lived, with mitochondria producing free radicals that can damage heart cells and blood vessel walls.

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.

Cooling helmets may provide innovative stroke treatment

Researchers tested a cooling helmet on patients with severe ischemic stroke, finding that it preferentially cools the brain rapidly and profoundly. The study showed excellent functional recovery in younger patients but only 20% in elderly patients.

Declining sharks

Pelagic shark assemblage declines drastically, with oceanic whitetip shark declining by over 99%, yet no conservation attention is given to these species.

Warm water vibrates for longer

Researchers found that the lifetime of water's OH-stretch vibration increases with temperature, weakening hydrogen bonds and allowing molecules to vibrate longer. The study used ultrafast infrared lasers to measure the number of vibrating molecules, revealing a unique property of water.

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.

Researchers determine reason for deadly spread of 1918 influenza

The study found that subtle alterations in the influenza virus's infectivity led to its deadly spread. The researchers determined that a key contributor was the hemagglutinin protein, which allowed the virus to bind to human receptors in an antigenically favorable way.

Natural killer cellers are made, not born

Rockefeller University scientists have discovered that natural killer cells, a crucial part of the immune system, need to be 'nurtured' before they can effectively destroy tumor and infected cells. This new understanding paves the way for potential changes in bone marrow and stem cell transplant procedures.

Two centres for infectious diseases established

The Netherlands has established two new research centers, NIVAREC and PRIOR, to develop and produce flu vaccines and tackle poverty-related infectious diseases. The centers aim to strengthen cooperation between researchers from different institutes and foster knowledge infrastructure in developing countries.

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.

Etching of deep trenches in silicon explained

A new method for improving trench profiles in the Bosch process has been developed, allowing for maximum depth-width ratios of over 30. This is achieved through two techniques: adding a third plasma pulse to remove polymer layer and optimizing passivation pulses to prevent polymer deposition.

Corkscrew device retrieves clots, quickly reverses stroke damage

A new corkscrew-shaped retrieval system has been shown to restore blood flow and reverse paralysis in 61 of 114 patients with ischemic strokes. The device, MERCI Retrieval System, was able to dissolve clots and open blood vessels in patients who were not eligible for standard tPA therapy within three hours.

Study demonstrates altered angiogenic proteins in preeclampsia patients

Researchers have identified elevated levels of soluble fms-like tyrosine kinase 1 (sFlt1) in pregnant women at risk of developing preeclampsia. This finding suggests that sFlt1 may serve as a biomarker for early detection and potentially inform treatment strategies through the administration of drug therapies that neutralize its effects.