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Science News Archive July 2008


Page 2 of 20

String probes for devastating childhood digestive disease

Researchers at the University of Illinois Chicago are developing string probe tests to diagnose eosinophilic esophagitis, a condition where defense cells attack the esophagus. The test uses a swallowed string with gelatin capsule to measure inflammatory proteins and replace repeat endoscopies.

Drinking in excess associated with increased risk for metabolic syndrome

A new study found that those who drink excessively are at increased risk for metabolic syndrome, a condition associated with cardiovascular disease. The study analyzed data from over 1,500 participants and found that most people in the US drink in ways that may increase their risk of metabolic syndrome.

MicroRNA implicated as molecular factor in alcohol tolerance

A new study found that microRNA may influence the development of alcohol tolerance by regulating gene expression in brain cells. MicroRNA-9 was shown to block the expression of certain BK channel variants, which exhibited high alcohol sensitivity and low tolerance.

Cassini instrument confirms liquid surface lake on Titan

Scientists confirmed a surface liquid lake on Titan, measuring approximately 235 kilometers long and filled with liquid ethane. The discovery was made using the Visual and Infrared Mapping Spectrometer (VIMS) instrument on NASA's Cassini orbiter.

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.

New Alzheimer's predictors advance earlier detection

NYU researchers have identified new predictors for Alzheimer's disease, including brain atrophy and biomarkers in cerebrospinal fluid. These findings may help predict individuals at high risk of developing the disease, enabling early detection and prevention.

Apple iPhone 17 Pro

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

Nephrologists debate uses of estimated kidney function

The American Society of Nephrology discusses the merits of using eGFR for early detection and treatment of CKD, highlighting concerns about misclassification and universal screening. Experts emphasize the need for education and proper use of eGFR to ensure accurate diagnosis and management.

Increased burden of rare genetic variations found in schizophrenia

Researchers discovered a significant increase in rare deletions and duplications of genetic material in people with schizophrenia, affecting 13.1% of cases and 10.4% of controls. Two new sites on Chromosomes 1 and 15 were implicated as potent risk factors for the disorder.

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.

New schizophrenia genes uncovered

Researchers have identified four mutated gene regions linked to schizophrenia, offering new hope for treatment and diagnosis. The findings may lead to individualized medicine and earlier identification of those at risk.

'Hidden' Van Gogh painting revealed

A new technique has successfully revealed a hidden portrait of a woman behind Vincent van Gogh's 'Patch of Grass'. The method, using synchrotron radiation induced X-ray fluorescence spectroscopy, allowed researchers to reconstruct the concealed painting in unparalleled detail.

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.

Nanojewels made easy

Scientists at Arizona State University have developed a simple way to make colorful nanocrystals using colloid chemistry methods. The process involves placing nanoparticles in a drop of water on a superhydrophobic surface and letting it dry, resulting in opalescent colors. This method has the potential to create new materials for photo...

Smart contact lenses

Researchers at UC Davis have created smart contact lenses that can measure eye pressure and dispense medication. These contact lenses, made with a new material, could help doctors better understand glaucoma and improve patient treatment.

Plant parasite 'wiretaps' host

Researchers discovered that a parasitic plant can intercept host RNA molecules up to a foot from the point of infection, allowing it to synchronize its lifecycle with the host. This finding could lead to new ways to combat parasites that attack crop plants.

Celestron NexStar 8SE Computerized Telescope

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

New study shows calcium significantly improves children's bone health

A recent study published in the journal Bone found that higher intakes of calcium significantly improve bone health in children. The study, which pooled data from 21 randomized clinical trials, revealed a substantial increase in total body bone mineral content among children with inadequate calcium consumption.

Study identifies changes to DNA in major depression and suicide

A new study finds that proteins modifying DNA play a key role in major depression and suicide, with brain tissue showing higher rates of epigenetic regulation. The research, led by Dr. Michael O. Poulter, identifies a gene involved in regulating brain activity as being heavily chemically modified in deceased individuals.

Psychological downside to strike action

Research by Dr Jane Fowler found strikers experienced higher levels of depression and anxiety, but those actively involved in union activities showed lower symptoms. Unions can support members with financial assistance and counselling to reduce psychological impact.

Traumatic response to bad memories can be minimized

Researchers have discovered a new process that regulates adverse responses to bad memories by working on a tiny group of neurons inside the amygdala. By blocking or activating specific receptors, scientists can speed up or slow down traumatic responses, offering potential new treatments for panic disorders.

Beating the baby blues: A mouse model for postpartum depression

A new study provides a mouse model that may lead to the development of new treatments for mood disorders associated with pregnancy. The research found that alterations in GABA neurotransmitter system and GABAA receptor sensitivity during pregnancy and postpartum are linked to depression-like behaviors.

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.

Belief in God, parenthood prompt gay partners to make commitment

A study found that gay couples with children and strong religious beliefs are more likely to formalize their relationship through commitment ceremonies. The study, published in the Journal of Family Psychology, suggests that these couples may be motivated by parenting and religious commitments.

Study bolsters link to maternal Alzheimer's disease

Researchers found that individuals with a maternal history of Alzheimer's disease exhibit progressive metabolic reductions in glucose usage, particularly in areas of the brain affected by AD. This study bolsters previous findings and suggests that maternal risk for AD may be mediated through reduced brain metabolism.

Meta Quest 3 512GB

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

Gene may put women with migraine at increased risk of heart disease and stroke

Women with migraines, especially those with aura, may be at higher risk for heart disease and stroke due to a specific gene variant. A study found that women with this gene variant had more than three times the risk of cardiovascular disease, including four times the risk for stroke compared to those without the gene.

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.

New insight on superconductors

A team of researchers from UC Davis and Los Alamos National Laboratory have found a simple way to calculate the temperature at which the Kondo liquid emerges in heavy-electron materials, leading to new understanding of superconductivity. The discovery may help researchers find organizing principles of heavy-electron superconductivity.

Prelude to the Higgs: A work for 2 bosons in the key of Z

The DZero collaboration at Fermilab has observed pairs of Z bosons, a rare event that makes its discovery an essential prelude to finding or excluding the Higgs boson. The observation was made possible by analyzing nearly 200 trillion proton-antiproton collisions.

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.

New technique to compress light could open doors for optical communications

Scientists at UC Berkeley have developed a way to confine light in incredibly small spaces, potentially leading to breakthroughs in optical communications, miniature lasers and optical computing. The technique could give remarkable control over light, allowing for the creation of compact optical transistors.

New yeast trick for eating favorite food: Details in Nature paper

UC San Diego bioengineers identified a previously unknown mechanism allowing yeast to shut down galactose metabolism when glucose is present. This discovery provides new insights into gene regulation and could lead to understanding of human metabolic diseases like diabetes.

Sky's the limit for incoming UM students

Five University of Miami students received top honors with prestigious American Meteorological Society (AMS) awards, bolstering the university's reputation for academic rigor in meteorology. The Rosenstiel School's undergraduate program, one of only 70 nationwide, has seen notable success with these scholarships and fellowships.

UCLA imaging study suggests Alzheimer's drug may help mild memory loss

A small sample of adults with mild age-related memory loss showed increased brain metabolism and normalized brain function after taking Aricept for 18 months. The study suggests treating early symptoms of memory loss may protect the brain and help with mild age-related cognitive decline.

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.

Cholesterol-lowering drug boosts bone repair

A cholesterol-lowering drug, lovastatin, has been shown to improve bone healing in an animal model of NF1. The study found marked improvements in bone healing compared to control animals.

Life in a bubble

Research at MIT shows how insects trap air on their bodies to create an external lung, enabling them to stay underwater indefinitely. The stability of the bubble depends on the spacing of hairs on the insect's abdomen, which must be balanced with surface area for breathing.

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.

Potential new drug target to fight tuberculosis identified

Researchers at Weill Cornell Medical College have identified a key membrane protein, Rv3671c, essential to Mycobacterium tuberculosis' defense against immune cell acidification. Disabling this protein makes the bacterium vulnerable to acidification and killing.

Results of 9-month phase II study of gammagard intravenous immunoglobulin

The study found that patients treated with IGIV demonstrated significantly better cognitive function, daily functioning, and activities of daily living compared to those receiving placebo. The benefits persisted over 9 months, showing promise for IGIV as an antiamyloid immunotherapy for Alzheimer's disease.

Mud pots signal possible extension of San Andreas Fault

A linear string of mud pots and volcanoes indicates a surface evidence for the southern extension of the San Andreas Fault. Researchers identified 33 geothermal features forming a clear pattern, revealing a planar rift extending to considerable depth in the crust.

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.

Gaining advantages from childhood experience

Researchers found that rats exposed to novelty during infancy had better social competitiveness and reduced stress responses compared to those with no novel experiences. Consistency of maternal care was also linked to offspring's adaptability. These findings suggest early life experience plays a crucial role in shaping human development.

Frankincense provides relief to arthritis sufferers

A randomized, double-blinded trial of 70 patients found that taking an enriched extract of Indian Frankincense significantly improved osteoarthritis symptoms within seven days. The study suggests that AKBA, the most active ingredient in the plant, has anti-inflammatory properties and may be effective for treating knee osteoarthritis.

Obesity predisposition traced to the brain's reward system

A new study reveals a link between obesity predisposition and defective dopamine signaling in the brain's reward system. The mesolimbic system, which secretes dopamine, is found to have lower baseline levels and reduced stimulated release in obesity-prone rats.

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.

Acidification of the sea hampers reproduction of marine species

A study by Swedish researchers found that acidification reduces sea urchin fertility by 25%, affecting larval development and population growth. The findings highlight the devastating impact of ocean acidification on marine animal life, with far-reaching consequences for commercially and ecologically important species.