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Science News Archive 2008


Page 55 of 240

Primary care records improve public health information

The QResearch database has released a new report on public health indicators, including obesity, smoking, and cholesterol levels in over four million patients. The study finds that smoking rates are highest in deprived areas and that obesity levels continue to rise in the North and Wales.

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.

Drinking alcohol associated with smaller brain volume

Drinking more than moderate amounts of alcohol is associated with reduced total brain volume and larger white matter lesions. This finding suggests that heavy drinking may not have the protective effect on brain health previously thought, contrary to its effects on cardiovascular disease risk.

Scientists develop new cancer-killing compound from salad plant

Scientists have created a new compound that selectively kills cancer cells while sparing healthy cells, offering hope for more effective chemotherapy drugs. The compound targets cancer cells' high iron levels, delivering toxic molecules that ultimately lead to cell death.

New fossil reveals primates lingered in Texas

A new genus and species of primate, Diablomomys dalquesti, has been discovered in Texas dating back to 44-43 million years ago. The finding provides evidence that primates lingered in Texas longer than previously thought due to the warm climate during the late middle Eocene.

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.

Pleasure seekers: Clubbing is a controlled rave experience

Researchers found that modern club culture offers a more contained, regulated experience compared to underground raves. The emphasis on dancing and Ecstasy use has survived into the new era, but with increased regulation making it a more publicly acceptable form of partying.

Vision loss more common in people with diabetes

People with diabetes are at higher risk of visual impairment due to diabetic retinopathy and other ocular conditions. Approximately 11% of American adults with diabetes have some form of visual impairment, compared to 5.9% without the disease.

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.

Working through the menopause

The University of Nottingham is conducting a study to understand women's experiences working through menopause, with the goal of providing useful information for women, employers, and doctors. The research aims to address the significant gap in understanding the effects of menopause on women's working life.

Astrocytes and synaptic plasticity

Astrocytes fine-tune synaptic plasticity by secreting and re-releasing neurotrophic factor BDNF, influencing long-term potentiation (LTP) and depression (LTD). This process affects neurons' ability to communicate with each other, impacting learning and memory.

Research finds that marijuana use takes toll on adolescent brain function

Research finds that marijuana use during adolescence is associated with poorer performance on thinking tasks, including slower psychomotor speed and poorer complex attention, verbal memory, and planning ability. Chronic heavy use is linked to abnormal brain activation and impaired cognitive functioning even after a month of abstinence.

Response to immune protein determines pathology of multiple sclerosis

A new study in mice with an MS-like disease found that the brain's response to a specific immune protein, interferon-g (IFNg), dictates which part of the brain is attacked. This discovery may bring scientists closer to understanding the variable manifestations of human multiple sclerosis.

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.

Does hypertriglyceridemia aggravate the episodes of severe acute pancreatitis?

A study found that hypertriglyceridemia is independently associated with the severity of acute pancreatitis and leads to systemic complications. High triglyceride levels were linked to increased incidence of admission hypocalcemia, renal failure, shock, infection, and mortality in patients with severe acute pancreatitis.

What do you know? Not as much as you think

A meta-analysis of 103 studies found that people tend to overestimate their knowledge, especially in health and social policy. However, subjective knowledge is more closely aligned with objective knowledge for fun products compared to practical ones.

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.

Seeds of optimism in Iraq's mental health provision

Training programs in Iraq have led to the establishment of child mental health departments, benefiting from international collaboration, and innovative public awareness campaigns using television and radio. Despite challenges, there is a growing need for child psychiatrists, but progress is being made, with increased support for educat...

New properties of skin stem cells

Scientists at Karolinska Institutet discovered skin stem cells can divide actively and transport themselves through skin tissue, contradicting previous assumptions. The study's findings also suggest a link between hedgehog signaling and the development of basal cell carcinoma, the most common form of skin cancer.

Methamphetamine enters brain quickly and lingers

A study by Brookhaven National Laboratory found that methamphetamine's quick entry and slow clearance from the brain contribute to its long-lasting effects. The researchers used PET scans to track the drug's uptake, distribution, and clearance in healthy volunteers.

Apple iPhone 17 Pro

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

AAT protein restores blood glucose in type 1 diabetes model

Researchers at Beth Israel Deaconess Medical Center discovered that the AAT protein can restore normal blood glucose levels in a mouse model of Type 1 diabetes. The study suggests that inflammation plays a key role in the disease and provides evidence for using the protein as an alternative treatment option.

Strong elasticity size effects in ZnO nanowires

Researchers at Northwestern University resolved discrepancies in ZnO nanowire elasticity by performing experiments and computational studies. The findings reveal that the elastic stiffness of ZnO nanowires monotonically increases as their diameter decreases, with atomic level changes attributed to surface reconstruction.

Researchers write protein nanoarrays using a fountain pen and electric fields

A team of researchers at Northwestern University has successfully written nanoscale protein arrays using a tool called the nanofountain probe (NFP), which rapidly deploys proteins with unprecedented resolution. The technique utilizes electric fields to control protein transport, allowing for efficient and high-resolution patterning.

Vitamin D deficiency may be more common in Parkinson's disease patients

A study published in Archives of Neurology found that individuals with Parkinson's disease are more likely to be vitamin D deficient compared to healthy adults and those with Alzheimer's disease. The average vitamin D concentration in the group with Parkinson's disease was lower than both groups.

Fluke 87V Industrial Digital Multimeter

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

Georgetown University Medical Center researcher elected to Institute of Medicine

Lucile L. Adams-Campbell, a renowned expert on health disparities, has been elected to the Institute of Medicine, recognized for her outstanding professional achievements and commitment to service. As a professor of oncology at Georgetown University Medical Center's Lombardi Comprehensive Cancer Center, she will strive to enhance the n...

Carnegie Mellon to receive $900,000 from EPA for brownfields research

Carnegie Mellon University's Western Pennsylvania Brownfields Center will expand its brownfields research and education with a $900,000 EPA grant. The funding will support the development of an interactive tool to assess carbon footprints and energy impacts from brownfield development.

Which way 'out of Africa'?

Researchers find fossil river channels in Libya with a distinctly volcanic signature, supporting the theory that monsoon rains fueled rivers to the Mediterranean. The discovery provides an alternative route for early human migrations out of sub-Saharan Africa.

Worms' nervous system shown to alert immune system in Stanford studies

Researchers at Stanford University School of Medicine have shown that the nervous system of the minuscule worm Caenorhabditis elegans induces a change in its susceptibility to bacterial pathogen Pseudomonas aeruginosa. By manipulating the secretion patterns of nerve cells, they identified a particular molecule that binds to receptors i...

Scientists trace molecular origin of proportional development

Researchers at Cincinnati Children's Hospital Medical Center found that a little molecular messiness actually enhances developmental precision in fruit fly embryos. The study reveals the role of gene transcription regulatory protein Bicoid in establishing body proportionality and its relationship with embryo size.

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.

Duke team explains a longtime visual puzzler in new way

A Duke University team presents a new way to explain the puzzling flash-lag effect by suggesting that humans accumulate information from retinal speeds to make accurate behavioral choices. The study found that lag time increases non-linearly with object speed, supporting this explanation.

Is endocan a novel marker of colorectal cancer?

Research reveals endocan protein expression is higher in normal tissues than in colorectal cancer, with positive correlation to tissue differentiation. Elevated serum levels of endocan found in late-stage lung cancer, suggesting its potential as a biomarker.

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.

Why are T cells tolerant to hepatitis B virus?

Researchers found that chronic hepatitis B patients have higher PD-1 expression on T cells, which impairs HBV-specific T cell responses. In contrast, acute exacerbation of hepatitis B patients have lower PD-1 expression and more intense HBV-specific T cell responses.

Celestron NexStar 8SE Computerized Telescope

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

Lack of vitamin D linked to Parkinson's disease

A new study from Emory University School of Medicine found that 55 percent of Parkinson's disease patients had insufficient levels of vitamin D. The study also showed a higher fraction of patients with the lowest levels of vitamin D, described as deficiency, in the Parkinson's group compared to Alzheimer's and healthy groups.

Modern genetics vs. ancient frog-killing fungus

Researchers sequenced the fungus's genome and compared gene expression in different stages to identify key genes involved in killing frogs. They hope this study will help combat the deadly chytrid fungus, which affects over 43% of frog species.

Farmers can spot lame sheep, but fail to prevent footrot spread

A study found that farmers are skilled at identifying mildly lame sheep, but often neglect to treat them promptly, allowing the disease to spread. The researchers recommend that farmers inspect and treat the first mildly lame sheep in a group within one to three days of it first being lame

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.

Best treatment determined for childhood eye problem

Convergence insufficiency affects children's ability to focus and align their eyes while viewing objects up close, impacting reading and concentration. Researchers discovered that structured therapy sessions in a doctor's office and reinforcement eye exercises at home improve vision faster than home-based therapies alone. The study, sp...

New hope for a better treatment for childhood cancer

A new research project will develop and test new ways of scanning childhood tumours in depth, giving doctors a more detailed diagnosis and better indication of how to treat the tumour. This project is part of a nationwide investment of £50m to establish cancer imaging centres and research programmes.

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.

Nanotechnology boosts war on superbugs

Researchers have developed ultra-sensitive probes to investigate vancomycin's working mechanisms, paving the way for more effective new drugs. By detecting surface stress on bacteria, scientists can identify the disruption of cell walls and potentially develop more powerful antibiotics.

Pectin power

Researchers found that pectin, a compound in fruits and vegetables, inhibits galectin 3, a protein linked to all stages of cancer progression. This discovery may lead to functional foods with added bioactive pectin and provide evidence for the importance of eating at least 5-a-day.

Body's anti-HIV drug explained

Researchers at University of Southern California reveal the atomic structure of APOBEC-3G, an enzyme that stops HIV replication. The discovery suggests new directions for developing anti-HIV drugs by targeting a viral protein that blocks the enzyme.

Important new hair-loss gene discovered

A study published in Nature Genetics has identified a novel hair-loss gene variant associated with male baldness. The research found that this gene, located on chromosome 20, is inherited from both parents and may account for the similarity in cranial hair growth between father and son.

Pandemic flu models help determine food distribution and school closing strategies

Researchers developed models to estimate meal requirements and school closures to minimize the number of people infected. The simulations showed that school closures reduced the number of people infected with the virus, while voluntary quarantine and food distribution interventions had varying effects on disease spread and resource all...

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.

Triple antiplatelet therapy appears superior to dual antiplatelet therapy

Research studies and clinical registry data suggest that triple antiplatelet therapy achieves greater platelet inhibition than conventional dual antiplatelet therapy in patients undergoing percutaneous coronary intervention (PCI) with drug-eluting stents. This leads to reduced early mortality and major adverse cardiac events without in...