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Science News Archive 2003


Page 54 of 108

Salk scientists identify pathway that determines when plants flower

Researchers discovered a specific protein, PFT1, that triggers flowering in Arabidopsis plants under suboptimal light conditions. The study's findings have implications for improving crop yield and addressing world hunger, particularly in regions where malnutrition is prevalent.

Air dried sperm could allow home storage

A new air-drying technique allows stored sperm to be transported without special equipment, relieving laboratories of sperm care. This method also reduces the risk of HIV transmission and gives owners more control over disposal decisions.

NASA experiments validate 50-year-old hypothesis

Researchers used NASA's Electrostatic Levitator to prove a 50-year-old hypothesis on nucleation, a process crucial for materials and biological systems. The study showed that liquid metals resist turning into solids due to an atomic 'nucleation barrier', a fundamental mismatch in atom arrangement.

Apple iPhone 17 Pro

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

First steps to EMBO research awards agreed by the EMBC

The European Molecular Biology Laboratory (EMBL) and EMBO have agreed on a framework for cooperation, paving the way for formal agreements among member states. This development is expected to strengthen bioscience research in Europe, with the aim of supporting innovative projects and promoting collaboration.

Translate this!

Researchers at USC's Information Sciences Institute built a state-of-the-art machine translation system for Hindi in less than a month, achieving all aspects of the DARPA's 'Surprise Language' project. The system uses statistical models to find the most likely translations and can query Hindi databases using English questions.

Fibroleukin at fault in viral hepatitis

Researchers found that fibroleukin is a prothrombinase that contributes to the development of thrombosis in viral hepatitis. The study suggests a potential link between fibroleukin and the progression of viral hepatitis, highlighting the importance of further investigation into this area.

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.

Standard depression treatments found effective for low-income minority women

Researchers at UCLA Neuropsychiatric Institute and Georgetown University Medical Center found medication and cognitive behavioral therapy effective in treating depression among low-income minority women. Sixty percent of participants were at or below federal poverty guidelines, with many experiencing abuse and domestic violence.

Seed dormancy may hold the key to fighting weeds

Scientists investigate rice genome for clues on seed dormancy, a key trait to fight preharvest sprouting. They develop populations segregating for dormancy and identify genetic attributes associated with heritability.

Cancer researchers describe new class of angiogenesis proteins

Scientists have identified a new class of proteins that promote angiogenesis, the formation of new blood vessels. Del-1 protein, discovered four years ago, has been found to be stable and continually stimulate angiogenesis. The researchers hope to use this knowledge to develop therapies that can inhibit angiogenesis in cancer.

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.

Circadian influence in plants more widespread than previously thought

Researchers found new regions of the genome under circadian control using a technique called gene trapping, contradicting accepted dogma. The study suggests that clock-controlled mRNA synthesis may be more common than previously estimated, potentially leading to improved crop productivity and resistance to stressful conditions.

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.

Other highlights of the July 2 JNCI

Researchers found that high zinc intake was associated with an increased risk of advanced prostate cancer, but not with lower doses. The studies also failed to find evidence of simian virus 40 (SV40) DNA in non-Hodgkin's lymphoma samples.

Standard depression treatments found effective for low-income minority women

Researchers found that medication and cognitive behavioral psychotherapy (CBT) treatments significantly alleviated symptoms of depression in young Latinas and African-American women. The study, funded by the National Institute of Mental Health, confirmed that standard treatments can be effective for low-income minority women.

Medication and psychotherapy treat depression

A new study finds that pairing medication with intensive outreach and encouragement significantly reduces depressive symptoms and improves daily functioning among low-income, minority women. The treatment approach was most effective for this population compared to traditional care.

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.

Full fat milk and butter may help prevent asthma

Research found that daily consumption of full cream milk and butter was associated with lower rates of asthma and wheeze in pre-school children. Antioxidants and other micronutrients in these products may play a role in this beneficial effect.

Computer vision study links how brain recognizes faces, moods

A computer vision study reveals that the brain processes facial recognition and emotional expression in linked neural pathways. The researchers developed a model that explains how humans recognize familiar faces and emotions, which can be applied to create more accurate face-recognition systems.

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.

Mechanism found that weakens caregivers' immune status

A new study led by Janice Kiecolt-Glaser and Ronald Glaser found that caregivers of chronically ill patients experience prolonged immune disregulation, increasing their risk for age-related diseases. The research suggests that chronic stress and caregiving duties can have lasting effects on the immune system.

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.

Scientists find potential stem cells in amniotic fluid – a new source?

Researchers have identified a subgroup of cells in amniotic fluid that express the protein Oct-4, a key marker for human pluripotent stem cells. These cells have shown potential to differentiate into nerve cells and could potentially replace embryonic stem cells, reducing the need for human embryos.

Postmortem guidelines are frequently not followed

A study at Royal Hallamshire Hospital found that most death certificates were completed by junior medical staff, with only a third issued by senior members. Necropsy rates have declined since 1993, raising concerns about the impact of recent 'organ retention scandal'.

For healthy diet, learning level counts more than earning level

A recent study found that individuals with higher education levels have better diet quality compared to those with lower education levels. The gap in diet between higher and lower educated groups may explain the disparity in health between socioeconomic groups in the US. Despite overall improvements in dietary habits, there are still s...

Meta Quest 3 512GB

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

Women's sexual behaviors may be closer to men's than previously thought

A new study by Ohio State University researchers found that some reported gender differences in sexual behavior might be due to women being less than honest when surveyed. Women's answers were closer to men's in certain areas of sexual behavior when they thought lies could be detected, while men's answers didn't change as much.

Cross talk between bacteria, host leads to E. coli infection

Researchers discovered that friendly bacteria and human hormones send cellular signals alerting E. coli to its location, leading to colonization and toxin release. Beta blockers may be developed to block this signaling system, preventing the bacteria from reaching the intestine.

Getting closer

Researchers at USC successfully simulated the somatic hypermutation process in vitro, closely mirroring its natural occurrence. This breakthrough enables the development of an in vitro system that can mimic the body's immune response.

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.

Researchers find a new way to potentially thwart anthrax

NYU researchers identify a gene, luxS, necessary for robust growth of the bacterium in test tubes. This discovery opens up new avenues for developing antagonists or inhibitors to control anthrax, a highly lethal bacterial infection.

Crawler reconnaissance

The Surf Zone Crawler, a fully autonomous amphibious vehicle, can follow search instruction plans, classify and map underwater mines in turbulent ocean surf zones. It has been used to search under the World Trade Center after 9/11, Afghan caves, and underwater wreckage off Normandy's beaches, with plans to deploy it in Iraq.

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.

Strategies to boost women’s multivitamin use fall short

A study by Kaiser Permanente found that targeted interventions to increase multivitamin use among women of childbearing age had no significant long-term impact. Despite efforts to educate healthcare providers and pharmacists, the success of these interventions was hampered by inadequate implementation and lack of behavioral change.

School lunch options crowd out fruits and vegetables

A recent study found that schools' a la carte options are displacing fruits and vegetables in the diets of middle schoolers. The researchers discovered that nearly four out of every five snacks sold through these programs were high-fat, while only low-cost and healthy items should be added to menus.

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.

Pretreatment increases liver transplant survival in rats

Researchers found that adding interleukin-6 to the preservative solution before transplantation significantly increased post-transplant survival of rats receiving organs with fatty degeneration. The treatment reduced cell death and improved liver function in steatotic livers, suggesting a promising strategy for addressing organ shortages.

Unemployment, access to guns among factors that turn domestic violence deadly

A study published in the American Journal of Public Health found that a combination of factors, including unemployment, access to firearms, highly controlling behavior, and separation, increases the likelihood of female murder by their partner. Researchers identified key risk factors that can help identify women at high risk of homicide.

Annals of Internal Medicine, tip sheet, July 1, 2003

The US Preventive Services Task Force recommends against use of beta-carotene supplements for cancer or cardiovascular disease prevention due to lack of benefit and potential harm. Lawsuits involving human subjects research are increasing, leading to more careful research and increased costs, according to experts.

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.

Gene may inhibit smokers from quitting

A specific gene variation, CYP2A6del, may inhibit smokers from quitting and protect against pulmonary emphysema. The study found that this allele was more common in heavy smokers who consumed fewer cigarettes and had a lower risk of developing lung disease.

Men, mammals, and machines

A team of Marine Corps reconnaissance swimmers, Navy SEALS, Explosive Ordnance divers, dolphins, and REMUS worked together to clear mines from Iraq's port. REMUS successfully located potential targets, allowing the dolphins to inspect and report back on its findings.

ESHRE continues ban on human reproductive cloning

The European Society of Human Reproduction and Embryology (ESHRE) has reaffirmed its ban on human reproductive cloning due to significant practical and ethical risks. The organization believes that the generation of clones could infringe upon human dignity, increase genetic determinism, and restrict autonomy.

Success and single embryo transfer in IVF

The study found that single embryo transfer (SET) does not reduce the chances of having a baby, with similar cumulative live birth rates to dual transfers when previously frozen embryos are included. SET also carried fewer risks to mothers and fetuses, with only three sets of twins out of 107 women.

Celestron NexStar 8SE Computerized Telescope

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

Scientists find what type of genes affect longevity

Researchers discovered that a single life-extending mutation affects multiple genes, including those controlling cellular stress response and metabolic processes. The study reveals the intricate connections between genetic pathways and their impact on lifespan.