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Science News Archive November 2007


Page 13 of 19

Paying peanuts for clean water

Researchers have found that peanut husks can extract up to 95% of copper ions from waste water, while pine sawdust achieves only 44% extraction. The process works best at slightly acidic conditions, making it a promising solution for reducing toxic copper levels in natural resources

Researchers uncover clues to horse herpes and neurologic disorders

A single amino acid variation in equid herpesvirus type 1 (EHV-1) creates a different type of EHV-1 that causes neurological disorders in horses. The researchers found that altering this amino acid reduces virus levels and makes the virus more susceptible to antiviral drugs.

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.

Cosmic ray mystery solved?

A study by scientists has found that the most energetic particles in the universe – ultrahigh-energy cosmic rays – are correlated with the centers of active galaxies hosting violent black holes. The sources are thought to be within 326 million light years, our local neighborhood in cosmic terms.

The structural basis of familial hypertrophic cardiomyopathy is revealed

A recent study by Dr. Dorit Hanein at the Burnham Institute for Medical Research provides new insights into Familial Hypertrophic Cardiomyopathy (FHC), a deadly genetic disorder affecting young people and athletes. The research reveals that a specific point mutation in myosin heavy chain causes myocardial disarray, leading to changes i...

Atrogin breaks down the side effects of statins

Researchers identified atrogin-1 as a key factor in statin-induced muscle damage, which can be prevented by inhibiting its function. This breakthrough may lead to new treatments for high cholesterol patients experiencing unwanted side effects.

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.

Emotional eaters susceptible to weight regain

A new study found that dieters who eat in response to emotions, rather than social situations, tend to lose less weight and experience more weight regain. Emotional eating was associated with lower weight loss and higher likelihood of regaining weight in successful losers.

Michigan Tech helps solve mystery of cosmic rays

Scientists from 17 countries identify Active Galactic Nuclei (AGNs) as the most likely source of the highest-energy cosmic rays using data-gathering equipment designed at Michigan Tech. The findings, reported in Science journal, bring researchers closer to understanding the origin of ultra-high energy particles.

Imaging neural progenitor cells in the living human brain

Scientists have discovered a method to track neural progenitor cells in the adult human brain, opening new avenues for diagnosis and treatment of neurological disorders. The breakthrough uses magnetic resonance spectroscopy (MRS) to detect proteins produced by these cells.

Apple iPhone 17 Pro

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

Study finds strong demand for HIV meds after high-risk sex

A new UCLA study reveals that people seeking antiretroviral medications after high-risk sexual encounters are likely to complete the full treatment regimen. The research also shows a strong demand for publicly available post-exposure prophylaxis among high-risk populations in Los Angeles County.

A dynamical systems hypothesis of schizophrenia

Researchers developed a top-down analytical approach to understand schizophrenia's symptom inconsistencies, linking them to instability in attractor neural networks. The study suggests that decreased excitatory NMDA-mediated synaptically activated receptor conductances contribute to attention difficulties and reduced emotions.

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.

Which is the most talkative gender? It all depends

A meta-analysis of decades of scientific study reveals a small but statistically reliable tendency for men to be more talkative than women overall, especially in conversations with strangers. Women tend to dominate conversations with children and close friends, while using speech to build connections with listeners.

The genetic basis of inbreeding avoidance in house mice

A new study reveals that wild house mice rely on specialized protein signals in their urine to recognize and avoid close relatives. The researchers found that these proteins serve as a genetic barcode, allowing animals to identify and reject potential mates based on their unique scent profiles.

International team compares 12 fruit fly genomes

Researchers compared 12 closely related fruit fly species to better understand genetic adaptation, immune systems and gene regulation. The study, led by Cornell University, found evidence of evolutionary pressures on genes and regulatory elements that control diseases, development and behavior.

Meta Quest 3 512GB

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

Mysterious cosmic rays linked to galactic powerhouses

Researchers have found a significant correlation between high-energy cosmic rays and the cores of nearby galaxies, which emit prodigious quantities of energy. The Auger collaboration has traced the source of these cosmic rays to Active Galactic Nuclei (AGN), likely powered by supermassive black holes.

A molecular switch is linked to a common breast cancer

Locally advanced breast cancer (LABC) may account for 50% of breast cancers in developing countries and 30% among socially disadvantaged women. A new study identifies a molecular switch essential for LABC development, which could be targeted for new therapies.

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.

Yellowstone rising

Scientists at the University of Utah report that Yellowstone's caldera floor has risen by almost 3 inches per year for three years, with a total uplift of 7 inches during the past 30 months. This rate is more than three times faster than previous observations and may be due to an injection of a Los Angeles-sized blob of molten rock.

Adult brain cells are movers and shakers

A study by Johns Hopkins Medicine reveals a subset of adult brain cells that can exhibit dynamic behavior, including elongation and morphing, unlike traditional adult axons. This discovery opens up new avenues for understanding neural recovery following stroke or other brain trauma.

The world's smallest double slit experiment

Researchers performed the world's smallest double slit experiment using a hydrogen molecule, demonstrating classical behavior at the quantum level. The results show that quantum particles start behaving in a classical way on a scale as small as a single hydrogen molecule.

Researchers' discovery may lead to hypertension treatment

Researchers at Cornell University have identified a hormone in human urine that can safely reduce sodium levels and treat hypertension. The discovery was made possible by a new technique developed by Frank Schroeder, which allows for the analysis of complex mixtures of small molecules.

Celestron NexStar 8SE Computerized Telescope

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

Interferon does not slow or stop hepatitis C from worsening, study finds

A national study found that long-term pegylated interferon does not prevent the progression of liver disease in patients who haven’t responded to previous treatments. Despite significant viral level decrease and inflammation reduction, 34.1% of treated patients experienced worsening outcomes.

JCI table of contents: Nov. 8, 2007

Research reveals that statins cause skeletal muscle damage through the activity of the gene atrogin-1. Inhibiting this gene's function could help protect against the side effect. Separate studies also link low levels of protein SHGB to metabolic syndrome and show how excess sugar contributes to its development.

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.

Measurements link magma melting rate to tectonic plate subduction rate

Geologists at the University of Illinois report a direct relationship between magma production and tectonic plate convergence rates in a Caribbean submarine volcano. Analyzing rock samples from Kick'em Jenny, they found a higher protactinium-to-uranium ratio indicative of slower melting rates due to slow subduction rates.

New insight into the link between genetics and obesity

Researchers have discovered that the FTO gene influences weight gain by modifying DNA, suggesting a role in controlling hunger and satiety. The study found that the FTO variant is common and associated with increased risk of obesity and diabetes, paving the way for potential therapeutic manipulation.

Sex, sugar and metabolic disease

A study reveals that excess sugar consumption decreases SHGB production in the liver, a protein regulating sex steroid entry into tissues. This reduction is associated with increased fat palmitate levels and inhibited by inhibiting palmitate generation.

Smile, protons, you're on camera

A team of scientists, led by Marek Pfutzner, has successfully peered closely at the radioactive decay of a rare iron isotope, shedding light on an exotic form of radioactivity. The technique used a novel combination of advanced physics equipment and digital camera technology to capture ghostly images of trajectories of emitted protons.

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.

Researchers discover natural herbicide released by grass

Cornell researchers identified a natural amino acid called meta-tyrosine in fescue lawn grass that inhibits weed growth and suppresses plant development. The discovery may lead to the development of new varieties of fescue grasses with improved weed-suppressing properties.

Transient increase in cervical cancer risk in oral contraceptive users

Current oral contraceptive users have a higher risk of developing cervical cancer, but this risk returns to normal after 10 years of not using the contraceptives. The study also found that women who test positive for high-risk human papillomavirus are more likely to develop in-situ or invasive cervical cancer.

New HIV vaccine target could solve mutation problem

Researchers have identified a potential new way of fighting against HIV infection by targeting human endogenous retroviruses (HERV). A vaccine containing HERV antigens could stimulate T-cells that target cells expressing HERV, potentially protecting people from becoming infected or limiting damage caused by HIV.

What do teens remember on Remembrance Day?

A study involving grade 12 students found that most teens associate Remembrance Day with World War I and II, but don't consider its relevance to contemporary events. However, the majority believe the day plays a significant role in shaping national identity.

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.

A new mathematical formula for cancer progression

Researchers at Harvard and Johns Hopkins Universities developed a new paradigm in calculating tumor development, finding that it's driven by mutations in hundreds of genes. The study suggests that individual tumors can be driven by up to 20 mutated genes, leading to better understanding and potential new treatments for cancer.

Mitochondria send death signal to cardiac cells, study shows

Researchers at Ohio State University Medical Center found that the mitochondria send a death signal to cardiac cells when blood flow is restored, leading to cell damage and weakening heart function. The study identifies a specific enzyme, mitochondrial nitric oxide synthase, as a potential therapeutic target to stop this process.

Deep drilling for 'black smoker' clues

Researchers are exploring land-based 'black smoker' sites to gain insights into harnessing geothermal energy. The project, led by UC Davis, uses a deep drilling approach to study the interaction between hot rocks and fluids.

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.

Finding may eventually help tailor treatment for depression

A new genetic study from the University of Iowa found that women are more likely than men to have altered serotonin processes related to depression. The study, which analyzed data from 192 individuals, suggests that genetic variations may play a role in tailoring antidepressant treatment for individual responders.

Cocaine abuse blunts sensitivity to monetary reward

Researchers found that cocaine-addicted individuals have compromised sensitivity to monetary rewards, which may explain why they struggle to change their drug-taking behavior. The study suggests that this altered sensitivity to reward could be a key factor in the difficulty of modifying drug-taking behavior.

Mexico's expanded health insurance improves hypertension treatment

A recent study published in the British Medical Journal found that adults insured through Mexico's Seguro Popular program are more likely to receive antihypertensive treatment and have their blood pressure controlled than those without health insurance. Insured individuals had a 50% higher odds of receiving antihypertensive treatment, ...

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.

Pollution from marine vessels linked to heart and lung disease

A study reveals that marine vessel pollution causes approximately 60,000 premature cardiopulmonary and lung cancer deaths worldwide each year. The report estimates that the number of annual deaths from ship emissions could increase by 40 percent by 2012, with coastal regions in Asia and Europe being the most affected.

NIH awards Mayo Clinic $11M for kidney disease research

Mayo Clinic researchers will study renal vascular disease caused by atherosclerosis to find new ways to diagnose and treat the condition. The study aims to develop novel imaging tools to predict, detect, and evaluate the disease, with the goal of preventing renal deterioration.

Cough medicine fights dyskinesias in Parkinson's

Researchers at Oregon Health & Science University have discovered that a cough suppressant, dextromethorphan, reduces dyskinesias in rats. Additionally, a drug tested as a schizophrenia therapy, BMY-14802, has been shown to effectively curb the involuntary movements more so than dextromethorphan.

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.