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Science News Archive June 2012 - Page 21


Page 21 of 29

New research examines health behavior in long-term relationships

A new study found that gay and lesbian couples are more likely to engage in mutual health behaviors, while straight couples rely on one partner as the 'health expert.' The research also suggests that societal conditions can shape health behavior dynamics in intimate partnerships.

SourceUniversity of Cincinnati·JournalSocial Science & Medicine·DateJun 11, 2012

Keeping pace: Walking speed may signal thinking problems ahead

A new study found that people with mild cognitive impairment were nine times more likely to be slow walkers than moderate or fast walkers. The study used a new technique to detect changes in walking speed and found that fluctuations in walking speed were also associated with MCI.

SourceAmerican Academy of Neurology·JournalNeurology·DateJun 11, 2012
Apple iPhone 17 Pro

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

Stanford researcher identifies unusual 'altruistic' stem cell behavior with possible link to cancer

A Stanford researcher discovered that certain human embryonic stem cells produce molecules that benefit themselves and nearby cells during stress, exhibiting 'altruistic' behavior. This unique trait is linked to an increase in p53 protein fluctuations, enabling some stem cells to maintain their stemness and secrete antioxidant glutathi...

SourceStanford Medicine·JournalStem Cells·DateJun 11, 2012

Molecular imaging detects signs of Alzheimer's in healthy patients

Researchers have made significant breakthroughs in Alzheimer's disease detection using molecular imaging technology, which can identify beta-amyloid plaques in the brain. Studies show that high levels of amyloid binding are associated with an 80% chance of developing Alzheimer's disease within two years.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 11, 2012
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.

Radiation-resistant circuits from mechanical parts

Researchers develop unique technology that keeps devices working in the presence of ionizing radiation, suitable for space applications and control systems, and overcome current radiation-resistant technologies' drawbacks. The new logic gates perform logical operations and can be used to build circuits such as adders and multiplexers.

SourceUniversity of Utah·DateJun 11, 2012

Scientists correct Amazon water level gauges from space

The University of Bristol scientists developed a technique to calibrate six Amazon gauges using ICESat elevation data, correcting large discrepancies in water levels. This method enables researchers to accurately estimate water levels and river slope, crucial for understanding the exchange of water with floodplains and other processes.

SourceUniversity of Bristol·JournalWater Resources Research·DateJun 11, 2012

Bioluminescence imaging lights up stem cell therapy for hair growth

Researchers used bioluminescence imaging to track hair follicle stem cells in mice, showing successful regeneration of new hair follicles. The study paves the way for future clinical trials to test the efficacy of this novel therapy for human hair regeneration.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 11, 2012
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.

Identifying the origins of cervical cancer

A population of cells in the squamo-columnar junction of the cervix have been found to be responsible for most HPV-associated cervical cancers. These cells can become cancerous when infected with HPV, while other cells in the cervix appear to be resistant to infection.

SourceBrigham and Women's Hospital·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012

Slightly elevated blood glucose levels increase risk of heart disease

New research from the University of Copenhagen found that even slightly higher blood glucose levels increase the risk of ischemic heart disease. A study of over 80,000 participants revealed a 69% increase in risk with just 1 mmol above normal levels.

SourceUniversity of Copenhagen·JournalJournal of the American College of Cardiology·DateJun 11, 2012

Are feminism and attachment parenting practices compatible?

A new study by Miriam Liss and Mindy Erchull found that feminist mothers support time-intensive, hands-on parenting practices associated with attachment parenting. The researchers surveyed 431 American women and found that feminists were more likely to endorse attachment parenting than non-feminists.

SourceSpringer·JournalSex Roles·DateJun 11, 2012
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.

Computer model successfully predicts drug side effects

A new computer model has successfully predicted negative side effects in hundreds of current drugs by analyzing their chemical structures and known side-effect molecules. The model identified potential side effects for 151 previously unknown compounds, including a synthetic form of estrogen that causes stomach pain.

SourceUniversity of California - San Francisco·JournalNature·DateJun 11, 2012

Corporate political giving doesn't pay

A new study by Rice University and Long Island University found that corporate political activity is negatively associated with market performance. Firms' political investments also worsen both market and accounting performance.

SourceRice University·JournalStrategic Management Journal·DateJun 11, 2012
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.

Regulating gluocse can prevent the onset of Type 2 diabetes

Researchers found that normalizing blood glucose levels in pre-diabetes patients can significantly reduce the risk of developing Type 2 diabetes. A study published in The Lancet revealed a 56% reduction in progression to diabetes among participants who achieved normal glucose regulation, regardless of its duration.

SourceUniversity of Colorado Anschutz Medical Campus·JournalThe Lancet·DateJun 11, 2012
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.

Natural HIV control may rely on sequence of T cell receptor protein

Researchers found that individuals with HIV who can control viral replication have killer T cells with effective T cell receptors, which recognize and kill infected cells. The study suggests that the particular sequence of the protein affects the ability to control infection.

SourceMassachusetts General Hospital·JournalNature Immunology·DateJun 11, 2012

A SMART(er) way to track influenza

Brown University engineers create a biochip called SMART that can detect influenza by identifying specific RNA sequences and separating them from other biological debris. The device is small, low-cost, and fast, making it potentially useful in first-aid kits.

SourceBrown University·JournalJournal of Molecular Diagnostics·DateJun 11, 2012

Researchers discover hereditary enzyme deficiency

A team of researchers has identified a hereditary enzyme deficiency, MPS IIIE, which leads to cognitive decline and learning difficulties in mice. The discovery also sheds light on the role of heparan sulfate degradation in lysosomal storage disorders.

SourceBielefeld University·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012

Treating childhood anxiety with computers, not drugs

A new treatment method using computers to address childhood anxiety disorders has shown promising results. The Attention Bias Modification (ABM) program, which uses a technique to reduce anxiety by changing thought patterns, was found to be as effective as medication and cognitive therapy for children.

SourceAmerican Friends of Tel Aviv University·JournalAmerican Journal of Psychiatry·DateJun 11, 2012

First Nations and low-income children visit emergency departments more often for mental health care

A study found that First Nations children and those from families receiving government subsidies had significantly more visits to emergency departments for mental health crises. These visits were often due to anxiety- or stress-related disorders, emotional or behavioural issues from substance abuse, or unspecific diagnoses.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJun 11, 2012
Meta Quest 3 512GB

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

PET quickly predicts success of brain cancer treatment

A new PET imaging technique using an amino acid probe can predict the effectiveness of brain cancer treatment as early as two weeks after initiation, without requiring invasive biopsies. This method provides vital information about the body's response to therapy and has shown promising results in patients with aggressive glioma tumors.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 11, 2012

The activity of a bacterial effector protein seen in molecular detail

New research reveals the molecular basis of a bacterial effector protein called Cif, which manipulates host cell processes for infection and colonisation. The study identifies the structure of Cif bound to its target NEDD8, providing insights into pathogenesis and potential new tools for probing cellular functions.

SourceNorwich BioScience Institutes·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012

Japanese scientists show 'new' liver generation using hepatocyte cell transplantation

Researchers in Japan have successfully generated a new liver system using hepatocyte cell transplantation. The study demonstrated the feasibility of propagating mouse hepatocytes by creating a vascularized platform and uniform hepatocyte sheets, leading to the functionality of the engineered liver system.

SourceCell Transplantation Center of Excellence for Aging and Brain Repair·JournalCell Transplantation·DateJun 11, 2012
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.

New therapy extends life for prostate cancer patients

A new line of radioisotope therapy, Radium-223 chloride, has been shown to extend the lives of prostate cancer patients with advanced tumors that have spread to bone. The treatment has a short range of penetration and is usually well-tolerated, with serious side effects being rare.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 11, 2012

Normal gene hinders breast cancer chemotherapy

A preclinical study found that normal p53, a tumor suppressor gene, makes breast cancer chemotherapy with doxorubicin less effective. Senescent cells produced by non-mutated p53 fueled the relapse of tumors. The research challenges the existing paradigm and is another step closer to personalized cancer medicine.

SourceUniversity of Texas M. D. Anderson Cancer Center·JournalCancer Cell·DateJun 11, 2012

Recreational fishing causes Cape Cod salt marsh die-off

Research by Brown University ecologists finds that recreational fishing causes a trophic cascade, leading to the collapse of salt marshes along Cape Cod. The absence of top predators allows Sesarma crabs to overgraze, causing ecosystem decline.

SourceBrown University·JournalEcology·DateJun 11, 2012

Reconfigured hybrid imaging lowers radiation exposure

Research finds that combining molecular imaging with computed tomography (CT) can reduce patient radiation dose. By using just one CT scan for multiple PET studies, researchers lower radiation exposure and improve image quality.

SourceSociety of Nuclear Medicine and Molecular Imaging·DateJun 11, 2012
Fluke 87V Industrial Digital Multimeter

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

Groundbreaking discovery of the cellular origin of cervical cancer

A team of researchers identified a unique set of cells at the squamocolumnar junction that express biomarkers found in all forms of invasive cervical cancers linked to HPV. These cells do not regenerate when excised, which has significant implications for diagnosis, prevention, and treatment of cervical cancer.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012

How infection can lead to cancer

A new MIT study examines how chronic inflammation can lead to cancer. The researchers found that the liver and colon respond differently to infection, with neutrophils secreting hypochlorous acid damaging proteins and DNA in the colon. The study could help predict the risk of chronic inflammation and develop ways to halt it.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012
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.

In countries where cooking can kill, trying to promote safer stoves

A recent study found that people prioritize features like fuel efficiency and time-saving over reduced smoke emissions when considering new cookstoves. The researchers suggest that health education and social marketing approaches may not be effective in changing user behavior.

SourceStanford University·JournalProceedings of the National Academy of Sciences·DateJun 11, 2012

Researchers develop a 'time bomb' to fight cardiovascular disease

A team of researchers has developed a 'time bomb' nanocontainer that releases vasodilator content exclusively to diseased areas, increasing treatment efficacy and reducing side effects. This technology exploits the physical phenomenon of shear stress in stenosed arteries to deliver targeted therapy.

SourceUniversité de Genève·JournalNature Nanotechnology·DateJun 10, 2012

Quick, simple test developed to identify patients who will not respond to the painkiller tramadol

Researchers have developed a simple blood test that can identify patients who will not respond to the painkiller tramadol. The test measures the ratio of tramadol's metabolite O-demethyltramadol (ODT) to tramadol itself, allowing doctors to switch non-responding patients to alternative painkillers like morphine.

SourceThe European Society of Anaesthesiology and Intensive Care (ESAIC)·DateJun 10, 2012
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.

Undersea volcano gave off signals before eruption in 2011

Researchers at Oregon State University used data from underwater hydrophones and seismic analysis to detect an abrupt spike in energy about 2.6 hours before the eruption, suggesting a new method for predicting undersea volcanic activity. The study also revealed insights into the link between magma intrusion and seafloor deformation.

SourceOregon State University·JournalNature Geoscience·DateJun 10, 2012

'Bad' dieting increases cardiovascular disease risk

A 25-year study in Northern Sweden found that a switch to low-carbohydrate diets after reducing fat intake led to an increase in cholesterol levels, indicating a higher cardiovascular risk. Despite initial success in reducing cholesterol levels through dietary changes, the population's BMI continued to rise over time.

SourceBMC (BioMed Central)·JournalNutrition Journal·DateJun 10, 2012

Decoding DNA finds breast tumor signatures that predict treatment response

Researchers identified distinct cancer signatures linked to treatment response in breast tumors, which could help personalize treatment for patients. The study found mutations in genes like TP53 and MAP3K1 associated with good response to aromatase inhibitors, while others like MALAT1 predicted poor outcomes.

SourceWashU Medicine·JournalNature·DateJun 10, 2012
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.

Sleep deprivation may lead to higher anxiety levels, fMRI scans show

Research using fMRI scans found that sleep loss significantly amplifies anticipatory activity in deep emotional brain centers, especially the amygdala. Participants who were more anxious showed the greatest vulnerability to the aggravating effects of sleep deprivation.

SourceAmerican Academy of Sleep Medicine·JournalSLEEP·DateJun 10, 2012

Scripps Research scientists develop new tools to unveil mystery of the 'glycome'

Researchers have developed chemical compounds that selectively block the attachment of sugar molecules to cells, potentially leading to new treatments for chronic inflammation, autoimmune diseases, and cancer. The new tools can help scientists understand how glycans influence cell function and behavior.

SourceScripps Research Institute·JournalNature Chemical Biology·DateJun 10, 2012
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.

Researchers watch tiny living machines self-assemble

University of Montreal researchers developed a strategy to monitor protein assembly by integrating fluorescent probes throughout the linear protein chain. This approach enables capturing snapshots of protein shape at each stage of assembly, shedding light on how proteins self-assemble into working nanomachines.

SourceUniversity of Montreal·JournalNature Structural & Molecular Biology·DateJun 10, 2012

Scientists reveal structure of bacterial chainmail

Researchers have imaged S-layer of Geobacillus stearothermophilus bacterium down to atomic scale, revealing chainmail-like structure that provides tough yet flexible protection and allows nutrients to diffuse in and out. This discovery holds promise for developing new vaccines by exploiting the ability of S-layers to self-assemble.

SourceBiotechnology and Biological Sciences Research Council·JournalNature·DateJun 10, 2012

Positive results from first human clinical trials of a first-generation artificial pancreas system is significant step forward for millions with type 1 diabetes

The Hypoglycemia-Hyperglycemia Minimizer (HHM) System successfully detects blood glucose highs and lows, automatically adjusting insulin delivery to safely manage type 1 diabetes. The study's findings lay the groundwork for further clinical trials and a potential game-changer for millions living with the condition.

SourceTonic Life Communications·DateJun 10, 2012

New insight into placental growth and healthy pregnancy

Scientists have discovered that the controlled release of microRNA miR-675 slows down placental growth before birth, regulating a key factor in healthy pregnancy. This finding has important implications for understanding how environmental signals and diet may influence fetal development.

SourceBiotechnology and Biological Sciences Research Council·JournalNature Cell Biology·DateJun 10, 2012
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.