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Science News for November 22, 2010


Overweight primarily a problem among wealthier women in low- to middle-income countries

A new study from Harvard School of Public Health finds that high body mass index (BMI) is primarily a problem among wealthy women in developing countries. The study analyzed data from 54 low- to middle-income countries and found an association between BMI and wealth, with richer women more likely to be overweight.

SourceHarvard T.H. Chan School of Public Health·JournalAmerican Journal of Clinical Nutrition·DateNov 22, 2010

New sleep cycle discovery explains why fatty diets during pregnancy make kids obese

Research published in FASEB Journal suggests that a fetal liver gene called Npas2 is a key regulator of the circadian system, which is altered by maternal high-fat diet during pregnancy. Improving diet can partially restore circadian machinery and reduce risk of childhood diseases related to obesity.

SourceFederation of American Societies for Experimental Biology·JournalThe FASEB Journal·DateNov 22, 2010

The spice of life: Variety is also good for hares

A new study published in Molecular Ecology found that hares with genetic variation at a specific gene locus have higher reproductive success, including increased fertility and fecundity. The research suggests that variability at the individual level can provide advantages for survival and reproduction.

SourceUniversity of Veterinary Medicine -- Vienna·JournalMolecular Ecology·DateNov 22, 2010
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.

Stability is first step toward treating ALS

Researchers at Brandeis University developed a chemical rope to stabilize the SOD1 protein, which causes familial ALS. The approach potentially solves the instability problem, even at high temperatures.

SourceBrandeis University·JournalProceedings of the National Academy of Sciences·DateNov 22, 2010

Allotment gardeners reap healthy rewards

A study found that allotment gardeners, especially those over 60, exhibit increased levels of physical activity and better overall health compared to their non-gardening counterparts. The research also suggests that having an allotment can promote healthy aging and lifestyle habits.

SourceBMC (BioMed Central)·JournalEnvironmental Health·DateNov 22, 2010

University of Minnesota engineering researcher finds new way to fight antibiotic-resistant bacteria

Researchers at the University of Minnesota have discovered a new way to combat antibiotic-resistant bacteria by treating municipal wastewater solids at higher temperatures. This approach can destroy up to 99.9% of bacterial genes that confer resistance, making it a potential tool in the fight against superbugs.

SourceUniversity of Minnesota·JournalEnvironmental Science & Technology·DateNov 22, 2010
Apple iPhone 17 Pro

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

Hong Kong hospital reports possible airborne influenza transmission

A study published in Clinical Infectious Diseases found that aerosol transmission of influenza may have occurred in a Hong Kong hospital. The authors identified an unbalanced indoor airflow that spread infectious aerosols across the ward, infecting nine patients.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateNov 22, 2010

More than half of depression patients give up their treatment

A recent study found that most depression patients (56%) discontinue their treatment within the first four months of medication, while less than a quarter complete therapy for more than 11 months. The researchers suggest that acute depression stages and lower adherence rates are common factors contributing to treatment dropout.

SourceSpanish Foundation for Science and Technology·JournalEuropean Psychiatry·DateNov 22, 2010

Successful treatment for mice with beta-thalassemia

A team of researchers has successfully treated beta-thalassemic mice by increasing hepcidin levels, which limits iron overload and markedly reduces anemia. This approach suggests a new therapeutic strategy for patients with beta-thalassemia, potentially mitigating iron overload and anemia.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 22, 2010
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 clinical practice guideline may help reduce the pain of childhood immunization

A new evidence-based clinical practice guideline aims to reduce pain and distress of immunization in children, based on 71 studies involving 8050 children. The guidelines suggest various strategies to alleviate pain, including breastfeeding, topical anesthetics, and vaccine administration technologies.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 22, 2010

Bacteria help infants digest milk more effectively than adults

Infants have more efficient bacteria to digest milk due to specific bacterial strains dominating their digestive tracts. These strains, such as Bifidobacterium longum subsp. infantis, enable efficient growth on human milk oligosaccharides.

SourceAmerican Society for Microbiology·JournalApplied and Environmental Microbiology·DateNov 22, 2010
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.

Lower-income families with high-deductible health plans may put off care because of costs

A recent study found that lower-income families enrolled in high-deductible health plans are more likely to delay or forego medical care because of the costs. Despite this, they did not report any difficulties understanding their plans. The study suggests that physicians play a crucial role in helping patients navigate these challenges.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010

Upper-class people have trouble recognizing others' emotions

A new study published in Psychological Science reveals that lower-class individuals are better at reading emotions than their upper-class counterparts. The researchers found that people from higher social classes performed worse on emotion perception tasks, suggesting they rely less on others for emotional support.

SourceAssociation for Psychological Science·JournalPsychological Science·DateNov 22, 2010
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.

Exercise may improve complications of deep vein thrombosis

A six-month exercise program improved leg strength and flexibility in patients with post-thrombotic syndrome, a frequent complication of deep vein thrombosis. The study's findings support the potential benefits of exercise training for managing this condition.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 22, 2010

Uptake protein acts as zinc's doorway to the cell

Researchers at Brookhaven National Laboratory have discovered that the uptake protein ZIP acts like a door, facilitating zinc entry into cells. Zinc is crucial for cellular growth and health, and understanding its uptake could lead to breakthroughs in biomedical and energy research.

SourceDOE/Brookhaven National Laboratory·JournalJournal of Biological Chemistry·DateNov 22, 2010

A divide and conquer strategy for childhood brain cancer

Researchers have identified six subtypes of childhood brain cancer medulloblastoma with distinct molecular profiles, allowing for more precise and individualized treatment. The study's findings could lead to the development of biomarkers for improved patient outcomes and more effective treatment strategies.

SourceBoston Children's Hospital·JournalJournal of Clinical Oncology·DateNov 22, 2010
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.

Study examines risk of bleeding among patients taking 2 anti-platelet drugs

A study published in Archives of Internal Medicine found that dual antiplatelet therapy increases the risk of bleeding, particularly nosebleeds or minor hemorrhages. The study compared emergency department visits for hemorrhage-related adverse events among patients taking dual antiplatelet therapy versus those taking warfarin.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010

Cutting-edge salivary diagnostics research presented at AADR 3rd Fall Focused Symposium

The American Association for Dental Research (AADR) presented a record-breaking turnout of 22 scientific posters on cutting-edge salivary diagnostics research. Key findings included emerging technologies and translational applications in the field, marking a significant milestone for the organization.

SourceInternational Association for Dental, Oral, and Craniofacial Research·JournalAdvances in Dental Research·DateNov 22, 2010

Georgia Tech-led team wins Gordon Bell Prize for supercomputing

A Georgia Tech-led team has won the Association for Computing Machinery's Gordon Bell Prize for its world-record-setting blood-flow simulation of 260 million deformable red blood cells. The application achieved 700 teraflops on Oak Ridge National Laboratory's Jaguar supercomputer.

SourceGeorgia Institute of Technology·DateNov 22, 2010

High alpha-carotene levels associated with longer life

A large study found that high blood levels of alpha-carotene were associated with a lower risk of death from all causes. Higher alpha-carotene concentrations also appeared to be linked to reduced risk of cardiovascular disease and cancer.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Gene find could lead to healthier food, better biofuel production

Researchers at Purdue University have identified the last undiscovered gene responsible for producing phenylalanine, a crucial amino acid in plant proteins and flower scent. This discovery could enable the control of phenylalanine production to boost plant nutritional values and improve biofuel feedstocks.

SourcePurdue University·JournalNature Chemical Biology·DateNov 22, 2010

Study could mean greater anticipated global warming

Current global climate models predict varying levels of warming, with disagreement mainly stemming from different representations of clouds. Researchers from the University of Hawaii at Manoa have assessed model performance in simulating clouds, presenting a new approach to determining expected cloud feedbacks in a warmer climate.

SourceUniversity of Hawaii at Manoa·JournalJournal of Climate·DateNov 22, 2010

Age estimation from blood has immediate forensic application

Researchers have developed a method to estimate human age from blood samples, which could be used to identify missing persons or solve crimes. The technique is based on the analysis of T cell receptors and has been shown to be highly accurate, with an error margin of nine years.

SourceCell Press·JournalCurrent Biology·DateNov 22, 2010

Putting the squeeze on fat cells

Researchers at Tel Aviv University have created a new computer method to measure mechanical stress in fat cells, which can help control the amount of fat produced by these cells. The study has direct applications in weight loss programs, treating bedsores, and managing chronic diabetes.

SourceAmerican Friends of Tel Aviv University·JournalJournal of Biomechanics·DateNov 22, 2010
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.

Method for manufacturing patient-specific human platelets

Researchers at Rockefeller University Press have successfully reprogrammed human skin cells to produce platelets that can be used in patients with thrombocytopenia. The breakthrough method involves culturing these cells in a cocktail of platelet-promoting factors, resulting in platelets that function like normal healthy platelets.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateNov 22, 2010

UC breakthrough may lead to disposable e-Readers

Researchers at the University of Cincinnati have developed a low-cost, high-performance paper-based display technology that could enable the creation of disposable e-readers. The technology uses electrowetting devices and has been shown to be equivalent in performance to glass, which is the gold standard in the field.

SourceUniversity of Cincinnati·JournalACS Applied Materials & Interfaces·DateNov 22, 2010

New tool detects Ebola, Marburg quickly, easily

Boston University researchers developed a simple diagnostic tool that can quickly identify Ebola and Marburg viruses in blood samples. The biosensor is ultra-portable, fast, and can detect viruses with little to no sample preparation.

SourceBoston University College of Engineering·JournalNano Letters·DateNov 22, 2010

The puzzle of biological diversity

Researchers found that local populations of Joshua trees and their pollinating moths are not as biologically diverse as expected, contradicting previous theories. The study suggests that co-evolution between the species can actually decrease diversity within each species.

SourceNational Institute for Mathematical and Biological Synthesis (NIMBioS)·JournalJournal of Evolutionary Biology·DateNov 22, 2010
Celestron NexStar 8SE Computerized Telescope

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

Exercising to piano music appears to help reduce falls among older adults

A six-month music-based multitask exercise program improved gait, balance, and reduced falls in community-dwelling elderly individuals. The study found a significant reduction in falls and risk of falling among participants, suggesting that this program may be useful for fall prevention and rehabilitation.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010

Muscle cells point the finger at each other

Researchers discovered that muscle cells in developing fly embryos send 'finger-like' protrusions into neighboring cells to facilitate fusion. The actin-rich fingers help form a small pore connecting the two cell types, eventually fusing them together.

SourceRockefeller University Press·JournalJournal of Cell Biology·DateNov 22, 2010

Perceptual training improves vision of the elderly

A study from the University of California, Riverside and Boston University found that perceptual training can improve visual performance in elderly adults. The researchers used a texture discrimination test to demonstrate that repeated performance of visual tasks can lead to improved vision.

SourceUniversity of California - Riverside·JournalJournal of Vision·DateNov 22, 2010

New function of gene in promoting cancer found by VCU researchers

Researchers at VCU Massey Cancer Center discovered that the gene AEG-1 promotes cancer cell survival and resistance to chemotherapy by regulating protective autophagy. Inhibiting AEG-1 expression may lead to effective treatments for aggressive cancers, such as breast and prostate carcinomas.

SourceVirginia Commonwealth University·JournalProceedings of the National Academy of Sciences·DateNov 22, 2010
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.

Breast milk sugar promotes colitis in offspring

A sugar found in mouse breast milk promotes colitis in offspring, according to a study published online. Newborn mice fostered by mothers lacking one particular milk sugar were less susceptible to inflammation-induced colitis later in life.

SourceRockefeller University Press·JournalJournal of Experimental Medicine·DateNov 22, 2010

Study reveals neural basis of rapid brain adaptation

Researchers have discovered that neurons in the sensory information pathway change their firing levels to enhance discrimination between different sensations. This modification allows brains to switch from detecting an object to identifying it more accurately.

SourceGeorgia Institute of Technology·JournalNature Neuroscience·DateNov 22, 2010

JCI table of contents: Nov. 22, 2010

High-throughput DNA sequencing of gut bacteria confirmed that antibiotic treatment disrupts bacterial patterns, which precedes VRE colonization and bloodstream invasion. Monitoring fecal bacteria content could identify patients at high risk of life-threatening infections.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 22, 2010

AGU highlights: Nov. 22, 2010

Researchers study how changing winds in the Southern Hemisphere affect ocean carbon storage and atmospheric carbon dioxide. A new study finds large methane releases from ocean sediments during glacial periods could have impacted ocean chemistry and contributed to climate changes.

SourceAmerican Geophysical Union·JournalGeophysical Research Letters·DateNov 22, 2010
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.

Study ties parental divorce in childhood to stroke in adulthood

Children who experience parental divorce are over twice as likely to suffer a stroke at some point in their lives, according to new research. This association remains strong even after adjusting for various risk factors, suggesting a potential link between early family disruption and cardiovascular health.

SourceThe Gerontological Society of America·DateNov 22, 2010

The not-so-sweet truth about sugar -- a risk choice?

A new review suggests that excessive amounts of fructose may play a role in high blood pressure, diabetes, obesity, and chronic kidney disease. The study recommends restricting added sugars containing fructose for patients with CKD to lower the risk of these health conditions.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateNov 22, 2010

For HIV-positive patients, delayed treatment a costly decision

A Johns Hopkins study found that delayed HIV treatment adds tens of thousands of dollars in care costs and reduces survival rates. Patients who wait too long to receive treatment require more expensive antiretroviral therapy, antibiotics, and hospitalizations.

SourceJohns Hopkins Medicine·JournalMedical Care·DateNov 22, 2010

Depression may be both consequence of and risk factor for diabetes

A large cohort study found that women with depression were 29% more likely to develop type 2 diabetes and those with diabetes had a 53% higher risk of developing depression. The association remained significant even after adjusting for lifestyle factors, suggesting a bidirectional relationship between the two conditions.

SourceJAMA Network·JournalArchives of Internal Medicine·DateNov 22, 2010
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.

MIT study: Adding face shields to helmets could help avoid blast-induced brain injuries

Researchers at MIT have created computer models that show a face shield can significantly reduce traumatic brain injury by impeding direct transmission of blast waves to the face. The study's findings offer a potential solution for preventing head injuries sustained by US troops during explosions.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 22, 2010

Prostate cancer clinical stage does not predict recurrence

A recent study published in Cancer found that clinical stage does not predict recurrence risk for patients with localized prostate cancer after having their prostate removed. Despite frequent errors in assigning stage, there was no association between clinical stage and prostate cancer recurrence.

SourceWiley·JournalCancer·DateNov 22, 2010
Meta Quest 3 512GB

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

Medical imaging breakthrough uses light and sound to see microscopic details inside our bodies

Researchers have developed a new imaging technology that combines photoacoustic tomography with gold nanobeacons, allowing for unprecedented detail in visualizing blood vessel formation. This breakthrough has the potential to help healthcare providers diagnose diseases earlier and more accurately.

SourceFederation of American Societies for Experimental Biology·JournalThe FASEB Journal·DateNov 22, 2010

Black children more likely to die from neuroblastoma, study finds

A new study found that black children are more likely to have the high-risk form of neuroblastoma and show signs of resistance to modern treatment. The study also showed disparities in outcome according to race, with black patients having a lower survival rate than white patients.

SourceUniversity of Chicago Medical Center·JournalJournal of Clinical Oncology·DateNov 22, 2010
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.

Late-preterm babies at greater risk for problems later in childhood

Research from Michigan State University finds that late-preterm babies are between two and three times more likely to have lower IQs and higher levels of attention problems at age 6. The study controlled for maternal IQ and demographics, suggesting that factors other than genetics may contribute to the increased risk.

SourceMichigan State University·JournalPEDIATRICS·DateNov 22, 2010

Scientists clock on to how sunlight shapes daily rhythms

Researchers have found a finely tuned process that enables plants to adjust their genes to daylight patterns, shedding light on human responses to disrupted daily rhythms. This discovery could provide new insights into coping with jet lag and shift work.

SourceUniversity of Edinburgh·JournalMolecular Systems Biology·DateNov 22, 2010

Ultrathin alternative to silicon for future electronics

Researchers have successfully integrated ultra-thin layers of indium arsenide onto a silicon substrate to create nanoscale transistors with excellent electronic properties. The devices exhibited superior performance in terms of current density and transconductance compared to silicon transistors.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature·DateNov 22, 2010

Sleep program needed for IT engineers

A new study published in Springer's journal Applied Research in Quality of Life found that 56% of software engineers suffered from insomnia, leading to lower quality of life and physical and mental health issues. Suitable awareness programs and lifestyle management should be implemented to address this issue.

SourceSpringer·JournalApplied Research in Quality of Life·DateNov 22, 2010
Fluke 87V Industrial Digital Multimeter

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

Trigger mechanism provides 'quality control' in cell division

Scientists have discovered a previously undiscovered trigger mechanism that monitors the structure of the cell's nucleus and delays cell division if it's not correct. This discovery may shed light on how cancer starts and could lead to new research into cancer prevention.

SourceUniversity of Utah Health·JournalJournal of Cell Biology·DateNov 22, 2010

Banking on predictability, the mind increases efficiency

Researchers found that listeners can effectively tune out sounds that don't conform to their brains' expectations, showcasing the efficient processing of predictable sounds. The study demonstrates how the mind quickly acquires and uses knowledge about the world's structure and redundancy to improve perception.

SourceUniversity of Wisconsin-Madison·JournalProceedings of the National Academy of Sciences·DateNov 22, 2010
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.

Targeted breast ultrasound plays key role in evaluating breast abnormalities in women younger than 40

A study published in the American Journal of Roentgenology found that targeted breast ultrasound was highly accurate in detecting breast cancer in women under 30. The study's high sensitivity and negative predictive value support its use as the primary imaging technique for young women with focal breast concerns.

SourceAmerican College of Radiology·JournalAmerican Journal of Roentgenology·DateNov 22, 2010

Nearly 25 percent of overweight women misperceive body weight

New research finds nearly 25% of overweight and 16% of normal-weight reproductive-age women misperceive their body weight, leading to unhealthy weight loss behaviors. Clinicians are recommended to calculate BMI, screen for misperceptions, and counsel patients to address this issue.

SourceUniversity of Texas Medical Branch at Galveston·JournalObstetrics and Gynecology·DateNov 22, 2010

Flying snakes, caught on tape

Researchers studied Chrysopelea paradisi snakes as they glided from a branch to the ground. The analysis revealed that the snakes never achieved equilibrium gliding state, but were instead pushed upward due to aerodynamic forces. This temporary effect would eventually cause the snake to hit the ground.

SourceAmerican Institute of Physics·DateNov 22, 2010