Bluesky Facebook Reddit Email

Science News Archive 2004


Page 48 of 135

Molecular staples shape a cancer killer

Researchers developed a novel peptide compound that triggers apoptosis in cancer cells, overcoming key obstacles associated with short peptides. The hydrocarbon-stapled alpha-helix peptide, SAHB, is more resistant to degradation and can be taken up by cells, making it a promising therapeutic agent.

Apple iPhone 17 Pro

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

Does the Atkins diet actually work?

A rapid review of the Atkins diet suggests that it can lead to significant weight loss in the short-term, with individuals on the low-carbohydrate diet losing more weight than those on an energy-restricted low-fat diet. However, long-term effects and potential health risks remain uncertain, highlighting the need for further research.

New study finds leptin plays a key role in women's health

A new study reveals that leptin can restore reproductive function in women with extreme low body fat levels, such as those with infertility, eating disorders, or osteoporosis. Leptin therapy showed dramatic results in raising reproductive hormones and improving menstrual cycles.

JCI table of contents: 1 September, 2004

Researchers found that zoledronic acid can halt the progression of cervical cancer in mice by inhibiting angiogenesis and matrix metalloprotease-9 expression. Additionally, a study on skin cancer revealed that Stat3 is required for initiation and promotion stages, suggesting it as a potential target for cancer therapy

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.

Dentists find alternative to 'potentially risky' general anaesthetic

Researchers have developed a new procedure using sedative midazolam and gases that has been successfully used to treat children with extreme dental problems, avoiding the risks associated with traditional general anaesthesia. The technique offers a viable alternative for specialist practices to reduce hospital waiting lists and free beds.

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.

Flame retardants found on supermarket shelves

A US study found significantly higher levels of brominated flame retardants (PBDEs) in food samples than previous market studies. The most contaminated items were fish, meat, and dairy products, highlighting the need for further research into the exposure routes of these toxic chemicals.

Chauvenet prize to Burger

Burger's work on number theory and mathematics education has earned him numerous awards, including the MAA Deborah and Franklin Tepper Haimo Award. His research focuses on Diophantine approximation and geometry of numbers, and he is also dedicated to making math accessible to everyone.

Scientists discover proteins involved in spread of HIV-1 infection

Researchers identified human VPS37 proteins as crucial in HIV-1 budding and protein sorting. The discovery could lead to the development of drugs targeting these proteins to prevent infection spread. Human VPS28 was also found to bind to TSG101, essential for HIV-1 replication.

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.

Patient end-of-life choices limited by physician outlook

A study surveyed 900 physicians from the Society of Gynecologic Oncologists, revealing that a physician's comfort level discussing death and their medical ethics training significantly affect end-of-life choices for terminally ill patients. Key aspects of effective conversations include 'straight talk' and compassion.

Radiation after lumpectomy may be unnecessary for many older women

A study of over 600 older women with receptor-positive breast tumors found that tamoxifen alone was as effective as radiation therapy in preventing recurrence. The research suggests that radiation may not be necessary for these patients, improving their quality of life and reducing side effects.

Guiding light on a nanoscale at Berkeley

Researchers at Berkeley Lab have created low-loss and highly flexible optical waveguides using semiconductor nanoribbons, which can be integrated into photonic circuits. The nanoribbon waveguides were synthesized from tin oxide and demonstrated the ability to propagate and modulate light through subwavelength optical cavities.

Analysis fingers causes of desertification

A recent study reveals that desertification is driven by a limited number of recurrent pathways, including regionally distinct combinations of factors and feedbacks. The analysis challenges traditional single-factor explanations and highlights the impact of public and individual decisions on desertification.

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.

Mayo Clinic pioneers gene therapy delivery system for glaucoma

Researchers successfully delivered a phosphorescent green protein from jellyfish to the eyes of laboratory cats, producing a permanent effect. The study demonstrates a potential gene therapy approach to treat glaucoma, a chronic disease affecting 70 million people worldwide.

How a dietary supplement can protect against Alzheimer's disease

Research in mice shows that dietary depletion of essential fatty acid DHA accelerates Alzheimer's disease, but supplementation protects against damage to dendrites and cognitive decline. The study supports increased DHA intake as a potential neuroprotective strategy for AD.

Prison stigma leads to poor health for African American men

African American men face significant barriers in transitioning from prison to society, including limited job opportunities and affordable housing. This can lead to poor health outcomes due to lack of access to healthcare services and insurance.

Analysis of gene expression in lymphoid cells can determine lymphoma cancer

Researchers at Temple University's Sbarro Institute developed a new blood test that uses CDK9/CYCLIN T1 expression to accurately diagnose lymphoma cancer types and stages. The study, published in the Journal of Pathology, found that analyzing these molecules in a blood sample can pinpoint the presence of lymphoma with high accuracy.

A genetic disorder yields insight into genes and cognition

A genetic disorder, Williams syndrome, has been studied using brain imaging techniques to understand its impact on genes and cognition. The research found that the disorder affects the dorsal pathway of the visual cortex, leading to difficulties in visuospatial construction.

Meta Quest 3 512GB

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

Researchers identify the genome's controlling elements

Scientists have developed a new method to quickly identify the precise landing sites of gene regulators in yeast, which are essential for understanding how genes and their regulators 'talk' to each other. This breakthrough could lead to a better understanding of diseases such as diabetes and cancer.

Chernobyl study: Risk of thyroid cancer rises with radiation dose

A recent study published in Radiation Research has established a dose-response relationship between radiation dose from Chernobyl and thyroid cancer. Researchers found that the incidence of thyroid cancer was 45 times greater among those who received the highest radiation dose compared to those in the lowest-dose group.

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.

Convulsions in worms mimic epileptic seizures

A team of researchers led by Guy A. Caldwell found that worms with a mutated LIS1 gene experience convulsions similar to those in humans with lissencephaly, a rare birth defect. The study reveals the mutated protein's impact on neuronal trafficking and neurotransmitter release, providing insights into the complexities of epilepsy.

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.

September 2004 Ophthalmology journal

This September 2004 issue of Ophthalmology journal features groundbreaking research on predictive factors for glaucomatous visual field progression, primary open-angle glaucoma in Japan, and hypothyroidism's impact on open-angle glaucoma. The studies also explore the mechanism of ocular hypotensive action of bimatoprost and optic nerve...

Liposuction shown to be safe under proper conditions

Researchers at UT Southwestern Medical Center conducted the first comprehensive study on liposuction's physiological impact, analyzing its effects on the heart and lungs, as well as electrolyte changes. The study found that levels of lidocaine and epinephrine must be closely monitored to ensure patient safety.

Paper or mouse-click? What's on computers is easier to find

A survey of over 200 respondents found that more than half struggled to keep track of paper documents, losing them at least once a week, compared to electronic information. The study highlights the need for better tools to help people organize their information effectively, regardless of its form or location.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Zoledronic acid zings cervical cancer

Researchers found that zoledronic acid inhibits the growth of cervical cancer by targeting macrophages expressing matrix metalloproteinase-9 (MMP-9) and angiogenesis. This treatment approach offers new hope for cervical cancer patients.

Moho gone missing, geologists say

A team of geologists reports that the Moho boundary is absent beneath California's San Joaquin Valley, due to a mantle drip. The study provides insight into mountain-building processes and explains how the Sierra Nevada formed.

Stopping skin cancer — Stat3

Researchers found that Stat3 is required for skin cancer initiation and maintains cellular growth through expansion of initiated cells. Inhibiting Stat3 function impairs tumor growth, suggesting its potential as a target for cancer therapy.

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.

Counseling boosts immunity, improves health habits

A long-term study at Ohio State University found that counseling improved immune function, reduced stress, and boosted healthier eating habits in breast cancer patients. The study's findings support the value of psychological intervention in cancer treatment and suggest potential benefits for other types of cancers.

ET, don't phone home; drop a line instead

Physicist Rose suggests that inscribing information on a physical medium can be more energy-efficient than sending messages through radio waves. He proposes this method as a solution for communicating with extraterrestrial civilizations, potentially leading to millions of messages being discovered on Earth or other celestial bodies.

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.

Possible link found between hypothyroidism and glaucoma in men

A significant association has been found between hypothyroidism and an increased risk of developing glaucoma in men. Researchers analyzed data from nearly 6,000 male patients with newly diagnosed glaucoma, revealing that nearly 7% had a prior diagnosis of hypothyroidism compared to 4% of non-glaucoma patients.

American Journal of Nursing partners with GSA to improve care of older adults

The American Journal of Nursing and the Gerontological Society of America aim to increase nurse certification in gerontology, stimulate institutional changes, and provide continuing education resources. The partnership will produce a bimonthly series on nursing care of older adults, publishing 15 evidence-based articles.

Pig-human transplantation not PERVerted

Researchers develop a new xenotransplantation model where human cells coexist with porcine cells, showing that they can live long-term without PERV infection. The study suggests that pigs may be a safer source for human transplantation due to the low risk of transmitting viruses.

Celestron NexStar 8SE Computerized Telescope

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

Men from early middle ages were nearly as tall as modern people

A recent study analyzed skeletal data from thousands of skeletons in northern Europe and found that average height declined slightly during the 12th-16th centuries and hit an all-time low during the 17th-18th centuries. The study suggests climate change, urbanization, and inequality as contributing factors to this decline.

Rare deficit maps thinking circuitry

Scientists have pinpointed the site of a defect in a brain circuit associated with Williams Syndrome, a genetic disorder that affects thinking and cognitive abilities. The study used MRI scans to identify a small region in the brain's white matter that lacked grey matter in people with the disorder.

Diabodies act as guided missiles targeted to mammary tumor growth

A new diabody targeting breast tumor growth has been developed, showing significant inhibition of human breast tumor xenografts in mice. The mini-antibody C6.5K-A specifically targets the HER2/neu human tumor-associated antigen and demonstrates great affinity for its target, leading to prolonged retention in antigen-laden tumors.

ESC Congress: Converting cells into heart muscle

Bone marrow derived stem cells can give rise to heart muscle cells through transdifferentiation, a process that has sparked debate and potential applications in heart repair and transplantation. The concept challenges traditional dogma of tissue specific stem cell differentiation in adults.

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.

ESC Congress 2004: Diabetes and the heart

The Euro Heart Survey on diabetes and the heart found abnormal glucose regulation is common in patients with coronary artery disease. Patients with diabetes face a dismal prognosis, but those without known diabetes can benefit from improved treatment standards.

NASA satellites detect 'glow' of plankton in black waters

Researchers used NASA's MODIS instruments to study dark water patches off the Florida coast, detecting glowing phytoplankton blooms. The findings suggest a connection between rivers and the ocean ecosystem, highlighting the need for coordinated efforts to mitigate black water events.

IEA GHG Weyburn carbon dioxide monitoring & storage project

The IEA GHG Weyburn project, a $40 million research initiative, involved 24 organizations in Canada, Europe, and the US, producing over 470 deliverables. The project's findings demonstrate the feasibility of large-scale CO2 capture and storage.

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.