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Science News Archive 2008


Page 187 of 240

ExoSeal vascular plug gets good reviews in ECLIPSE study

The ExoSeal vascular closure device significantly reduced bleeding time, enabling patients to get up and walk around far sooner than with manual compression. The study found no access site complications at 30 days, a promising result for the safety and effectiveness of the device.

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.

Yale study suggests evolutionary source of alcoholism's accidental enemy

A new genetic analysis by Yale School of Medicine researchers suggests that a genetic variant in East Asian populations may have protected residents from becoming alcoholics. The study found that this variant became widespread through natural selection in specific Hmong- and Altaic-speaking groups, hinting at an environmental factor.

Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Vive the vole!

A new study has introduced a nonlethal method to measure the body composition of small rodents using Dual-Energy X-Ray Absorbtiometry (DXA). This technology allows for accurate measurements without harming the animals, facilitating longitudinal research and increasing scientific collaboration between field and laboratory researchers.

Brain lesions more common than previously thought

Researchers found a three-to-four-fold higher overall prevalence of cerebral microbleeds compared to other studies. The presence of cerebral microbleeds is associated with an increased risk of cerebrovascular problems and may reflect underlying cerebrovascular pathology.

Warming world holds new threats for Aussie wildlife

A new study by CSIRO scientists warns that climate change will force environmental scientists to rethink their approach to conservation. Temperatures over Australia are projected to rise by about 1 ºC by 2030, and 1.8 ºC by 2070, relative to 1990 levels.

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.

Belimed Inc. and 3M Sterilization assurance to collaborate on education

The collaboration aims to promote best practices in sterilization monitoring and provide objective educational resources to customers. Belimed will offer access to 3M's Attest Sterile U Network educational resources, while both companies advance higher standards of practice in sterile processing areas.

Study questions 'cost of complexity' in evolution

A new study by Yale and Washington University researchers challenges the idea that complex traits have a 'cost of complexity,' suggesting that many mutations only affect a small number of traits. The team identified genomic regions affecting skeleton characteristics, revealing a well-coordinated process in tuning up complex traits.

Matrix registry probes adherence to clopidogrel at 1 year

A large community-based registry of patients treated with drug-eluting stents found that nearly a third of patients stopped taking clopidogrel by one year, but many returned to the medication. Patients who discontinued clopidogrel had a higher risk of death compared to those who continued taking the medication.

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.

Drug-coated balloon overcomes in-stent restenosis

A drug-coated balloon coated with paclitaxel has shown to be more effective than a traditional drug-eluting stent in reducing renarrowing of the coronary arteries after six months. The study found lower rates of major cardiac events at one year, making it a promising alternative for treating in-stent restenosis.

Harvard researchers publish MRI images of genes in action in the living brain

Researchers at Harvard have developed gene probe eye drops that enable non-invasive monitoring of brain activity in living organisms. The technology uses MRI to detect tissue repair and has potential applications in treating neurological diseases, diagnosing conditions, and delivering therapeutic agents to the brain.

Study finds support for PCI in unprotected left main disease

A new study found no significant difference in mortality rates between patients treated with stenting and bypass surgery for unprotected left main coronary artery disease. However, patients treated with stents were more likely to need repeat procedures to keep the artery open.

For the paper trail of life on Mars or other planets, find cellulose

A team of scientists discovered cellulose microfibers in ancient salt deposits, estimated to be 253 million years old. This finding suggests that cellulose may have played a role in the development of life on Earth and could potentially serve as a 'paper trail' for searching for life on other planets.

Celestron NexStar 8SE Computerized Telescope

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

Are women voters more likely to vote for female candidates?

Research found no significant gender gap supporting female candidates, with voters' decisions influenced by the candidate's policies and information rather than their gender. The study suggests women are more likely to support female candidates but evaluated similarly to male candidates based on personal and political considerations.

How HIV hides itself

Researchers have discovered how HIV evades the immune system by altering a key defence mechanism. The Nef protein interferes with the recognition of infected cells, making it difficult for the body to target and eliminate the virus.

Community-acquired MRSA spreads

MRSA cases have increased 10 times in Denmark over the last decade, with community-acquired strains spreading through family and social networks, says Professor Robert Skov. The Danish health system has introduced guidelines to prevent MRSA transmission, but the rising epidemic remains a concern for public health.

Apple iPhone 17 Pro

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

Good sexual intercourse lasts minutes, not hours, therapists say

A survey of 50 sex therapists found that satisfactory sexual intercourse typically lasts between 3-7 minutes for men and 7-13 minutes for women. The study aims to dispel unrealistic expectations about the length of sexual activity, promoting counseling over medication for addressing existing sexual problems.

Mental disorders and exposure to war in Lebanon

A nationwide study of 3,000 Lebanese adults found that one in four had a lifetime mental health disorder, with major depression being the most common. Exposure to war-related events significantly increased the risk of developing an anxiety or mood disorder.

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.

UCLA researchers design nanomachine that kills cancer cells

Researchers have created a novel nanomachine, called nanoimpeller, that can capture and store anticancer drugs inside tiny pores and release them into cancer cells in response to light. The device has strong implications for cancer treatment and may open a new avenue for drug delivery under external control.

Tai Chi exercises improve type 2 diabetes control

Regular Tai Chi Chuan exercise improves T cell helper function in patients with type 2 diabetes by increasing T-bet transcription factor and IL-12 production, suggesting a potential therapeutic effect. The study also found improved glycemic control, reduced inflammation, and enhanced immune response.

MicroRNAs, EMT and cancer progression

Researchers found that microRNA miR-200 is a consistent marker of cancer cells expressing E-cadherin but lacking Vimentin. Altering miR-200 levels induced changes consistent with either inducing EMT or the reverse process.

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.

New research provides insight into menopause

Menopause is thought to be an evolutionary adaptation that helps minimize reproductive competition between females in the same family unit. The researchers propose that older women should cease breeding when younger women start to breed, explaining the observed timing of reproductive cessation in humans.

Lingering bacteria don't indicate chronic Lyme disease

Researchers found that antibiotic treatment doesn't eradicate all Lyme disease-causing bacteria, which may contribute to lingering symptoms. The discovery sets the stage for controlled laboratory research investigating potential therapies for persistent Lyme disease infections.

Exploding star in NGC 2397

A team of astronomers from Queen's University Belfast have discovered the nature of five supernova precursor stars using Hubble images. The study reveals that stars with masses as low as seven times the mass of the Sun can explode as supernovae, challenging current understanding of massive star collapse.

Are blood thinners post-op killers?

A new review of 28,000 patients undergoing joint replacement surgery found that potent anticoagulants may actually lead to more deaths. The authors argue that these drugs have significant side effects and do not prevent pulmonary embolism effectively.

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.

Chloroform provides clue to 150 year old medical puzzle

Researchers have uncovered the molecular mechanism behind chloroform's action as a general anaesthetic, revealing its potential to design new anesthetics with reduced harm. Chloroform inhibits TRPC5 calcium ion channels, a key player in pain transmission and brain function.

Angina drug potentially useful against heart rhythm disorders

Researchers found that ranolazine shortens the QT interval by about 5 percent and improves myocardial relaxation in patients with LQT3 mutation, providing a potential treatment for two conditions. The drug also showed benefits in improving left ventricular relaxation and increasing mitral E-wave velocity.

Researchers identify a gene responsible for cases of Lou Gehrig's disease

A team of Canadian and French researchers has identified the TDP-43 gene as a significant cause of ALS (sporadic amyotrophic lateral sclerosis), a neuromuscular disorder affecting motor neurons. The study, published in Nature Genetics, found that up to five percent of ALS patients have genetic mutations in this gene.

GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

Childhood leukemia survivors struggle with long-term comorbidities

Long-term childhood cancer survivors, especially those treated with radiation therapy, experience excess health problems and poor socioeconomic outcomes. The study found that survivors are more likely to have chronic medical conditions, mental health issues, and functional impairment compared to their siblings.

Engineers make first 'active matrix' display using nanowires

Researchers at Purdue University have developed a proof-of-concept active-matrix display using transparent transistors and circuits. The display utilizes organic light-emitting diodes (OLEDS) with nanowires, which rival the brightness of conventional pixels in flat-panel television sets.

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.

Running out of treatments: The problem superbugs resistant to everything

Scientists warn of an impending crisis due to superbugs like Acinetobacter that have become resistant to all available antibiotics, including those thought safe. The bacteria cause severe infections, pneumonia, skin, and wound infections, and even meningitis, leading to significant patient mortality.

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.

Fire without smoke

Researchers have modeled flameless combustion in a gas turbine engine, finding reduced NOx emissions with almost uniform heat release. This process could lead to more efficient power generation and lower polluting emissions.

USC project aims to ease and speed access to biomed data

The USC project, led by Gully A.P.C. Burns, aims to develop software for laboratory use, creating a small-scale knowledge base for storing scientific articles locally. The project seeks to alleviate information overload and enable researchers to quickly find and retrieve data.

UC San Diego researchers eliminate drug discovery bottleneck

Researchers at UC San Diego have created a method to determine the structure of nonribosomal peptides in just one day, compared to six months or a year previously. This breakthrough may aid in the development of new drugs inspired by natural compounds with antibiotic and antiviral properties.

Boosting self-esteem can backfire in decision-making

A new study from Northwestern University finds that positive feedback can actually escalate perceived threats to the ego and increase the need to prove a questionable decision was right. Research participants who received praise for skills unrelated to the decision were less likely to recommit to it.

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.

Climate changing gas from some surprising microbial liaisons

Scientists have discovered that microbes produce dimethyl sulphide (DMS) gas at a rate of over 200 million tonnes per year in the world's seas. This climate-changing gas has multiple effects, including triggering cloud formation and attracting birds to food sources.

Registry unveils 'real-world' data on novel excel stent

The study found that the Excel stent is associated with a low incidence of cardiovascular complications, and six months of dual-antiplatelet therapy appears to be feasible and safe. The results showed an overall rate of major cardiovascular complications of 2.77%, including cardiac death, heart attack, and repeat coronary procedure.