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Science News for December 15, 2011


Let's do the twist: Spiral proteins are efficient gene delivery agents

Researchers at the University of Illinois have developed spiral-shaped proteins that can efficiently deliver DNA segments to cells. The polypeptides outperform commercial agents in terms of efficiency and control toxicity, offering a promising new approach for clinical gene therapy.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalAngewandte Chemie·DateDec 15, 2011

Shared flavor compounds show up on US menus, rare in Asian cuisines

North American cuisine tends to share more flavor compounds than expected, with ingredients like milk and butter contributing positively to food pairing. In contrast, East Asian cuisine often avoids mixing ingredients with shared flavor compounds, such as beef and ginger, which may negatively impact food pairing.

SourceIndiana University·JournalScientific Reports·DateDec 15, 2011

Can proteins in the blood predict an early death?

Researchers analyzed data from a large study to find that certain protein markers in the blood, such as cystatin C and beta trace protein, are better predictors of an individual's prognosis than creatinine. These markers may indicate not only kidney health but also other aspects of well-being.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateDec 15, 2011
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.

Gene discovery explains how fruitflies retreat from heat

Researchers at Duke University Medical Center discovered naturally occurring variations of the TRPA1 gene that allows fruit flies to sense potentially dangerous discomforts, including heat and pain. The findings may have implications for understanding temperature sensitivity in humans and developing new treatments for conditions such a...

SourceDuke University Medical Center·JournalCell Reports·DateDec 15, 2011

Cancer from fetal exposure to carcinogens depends on dose, timing

A recent study found that fetal exposure to carcinogens can lead to different types of cancer later in life, with the type of cancer depending on the stage of pregnancy when the fetus is exposed. The research also showed that mice who received multiple doses of a carcinogen had a higher rate of ovarian and lung cancer.

SourceOregon State University·JournalCancer Letters·DateDec 15, 2011
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.

Gene discovered for Weaver syndrome

Scientists have identified a gene mutation in the EZH2 gene that causes Weaver syndrome, a rare genetic disorder characterized by large size at birth and intellectual disability. This breakthrough discovery enables DNA-based diagnostic testing for the disease, providing definitive answers for families seeking a diagnosis.

SourceChild & Family Research Institute·JournalAmerican Journal of Human Genetics·DateDec 15, 2011

A supernova with a view

The study of the closest supernova in 25 years has shed new light on its formation. The team found that the exploding star was a white dwarf, and while they couldn't rule out a white dwarf merger, their results suggest a medium-sized star supplied the white dwarf with extra material to trigger the explosion.

SourceWeizmann Institute of Science·JournalNature·DateDec 15, 2011

Genome tree of life is largest yet for seed plants

Researchers plotted evolutionary relationships of 150 plant species based on advanced genome-wide analysis, providing insights into genetic basis of diversity. The study resolves the long-standing problem of producing an unequivocal evolutionary tree of seed plants.

SourceAmerican Museum of Natural History·JournalPLOS Genetics·DateDec 15, 2011
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.

Scientists discover second-oldest gene mutation

A new study identified a gene mutation that dates back to 11,600 B.C. and causes a rare vitamin B12 deficiency called Imerslund-Gräsbeck Syndrome. The mutation was found in people of Arabic, Turkish, and Jewish ancestry and is believed to have originated in a single prehistoric individual.

SourceOhio State University Wexner Medical Center·JournalOrphanet Journal of Rare Diseases·DateDec 15, 2011

Teens choose water when calorie count of sugary beverages is easier to understand

A new study found that providing clear caloric information about sugar-sweetened beverages may reduce their consumption among adolescents. Researchers discovered that physically presenting calories as physical activity equivalents was most effective in decreasing sugar-sweetened beverage purchases among black adolescents.

SourceJohns Hopkins Bloomberg School of Public Health·JournalAmerican Journal of Public Health·DateDec 15, 2011

Tool detects patterns hidden in vast data sets

Researchers developed a tool called MINE that can detect multiple patterns in large data sets, including health information, baseball statistics, and bacterial landscapes. The tool identifies relationships in a way that no other software program can, offering tremendous exploratory potential.

SourceBroad Institute of MIT and Harvard·JournalScience·DateDec 15, 2011
Apple iPhone 17 Pro

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

A 'fantastic voyage' through the body -- with precision control

A 'fantastic voyage' through the body is now possible with precision control thanks to a new capsule endoscope developed by Tel Aviv University researcher Dr. Gabor Kosa. The device uses MRI technology to navigate the digestive tract, enabling doctors to detect problems and perform biopsies or local drug delivery in a non-invasive manner.

SourceAmerican Friends of Tel Aviv University·JournalBiomedical Microdevices·DateDec 15, 2011

New Research Demonstrates Lean Beef is Good for Heart Health

A new study published in American Journal of Clinical Nutrition found that diets including lean beef every day are as effective in lowering total and LDL 'bad' cholesterol as the 'gold standard' of heart-healthy diets. Participants experienced a 10% decrease in LDL cholesterol from consuming 4.0 oz/day of lean beef daily.

SourcePorter Novelli·JournalAmerican Journal of Clinical Nutrition·DateDec 15, 2011

First low-mass star detected in globular cluster

Astronomers detect first low-mass star in globular cluster M22 using gravitational microlensing, suggesting alternative explanation for cluster mass. The star has less than a fifth of the sun's mass and is 3.2 kiloparsecs from it.

SourceUniversity of Zurich·JournalThe Astrophysical Journal Letters·DateDec 15, 2011

Researchers closer to understanding the evolution of sound production in fish

A study published in Frontiers in Zoology has found a hybrid system in pearl-perch that utilizes characteristics of both slow and fast systems for sound production. This discovery takes researchers closer to understanding the evolution of superfast sonic muscles that drive swimbladder vibration.

SourceVirginia Commonwealth University·JournalFrontiers in Zoology·DateDec 15, 2011
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.

Diabetes risk reduced among Latinos in UMass clinical study

A community-based diabetes prevention project in Lawrence, MA, taught healthy food choices and reduced pre-diabetes indicators in a Latino population. Participants who received lifestyle intervention had significant weight loss and clinically meaningful reductions in insulin resistance.

SourceUMass Chan Medical School·JournalAmerican Journal of Public Health·DateDec 15, 2011

Researchers assess effects of a world awash in nitrogen

A recent study found that humans have doubled the rate of nitrogen inputs into global ecosystems since the industrial era, with significant effects on water quality and coastal marine fisheries. The increased nitrogen levels can lead to reduced water quality, economic costs and even impact human sustainability.

SourceArizona State University·JournalScience·DateDec 15, 2011
Meta Quest 3 512GB

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

New study shows promise for preventing preterm births

A new study found that applying vaginal progesterone to women at risk of preterm birth significantly decreased the odds of premature delivery. The treatment was effective in reducing both early and late preterm births, as well as hospitalizations and complications.

SourceUniversity of Kentucky·JournalAmerican Journal of Obstetrics and Gynecology·DateDec 15, 2011

Team pinpoints amino acid variation in immune response gene linked with ulcerative colitis

A team of researchers has pinpointed an amino acid variation in the immune response gene DRB1 as a key factor in ulcerative colitis. This association was confirmed using sophisticated association techniques and suggests that the gene plays a significant role in determining the human immune response to extracellular antigens.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalGenes and Immunity·DateDec 15, 2011
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.

Researchers identify phthalates in numeruous medicines and supplements

Phthalates, including dibutyl phthalate (DBP) and diethyl phthalate (DEP), are used in FDA-approved medications to target delivery of active ingredients. The study found over 100 products containing phthalates, with potential health effects of human exposure unknown.

SourceBoston University School of Medicine·JournalEnvironmental Health Perspectives·DateDec 15, 2011

Key genetic error found in family of blood cancers

Researchers have identified a critical genetic mutation in patients with myelodysplastic syndromes, which can progress to leukemia. The mutation is found in nearly 9% of patients, increasing the risk of developing acute leukemia by almost three times. The study raises hopes for improved diagnosis and treatment of this blood cancer.

SourceWashU Medicine·JournalNature Genetics·DateDec 15, 2011

F. nucleatum enables breaking bond on blood vessels to allow invaders in

Researchers at Case Western Reserve University discovered that Fusobacterium nucleatum breaks the junctures in blood vessel cells, allowing bacteria like E. coli to invade the body. The oral bacterium triggers a cascade of signals that creates space for harmful invaders to enter the bloodstream.

SourceCase Western Reserve University·JournalMolecular Microbiology·DateDec 15, 2011
Fluke 87V Industrial Digital Multimeter

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

IASLC sets up committee to move CT lung cancer strategic screening forward

The IASLC has set up a Strategic CT Screening Advisory Committee to define optimal approaches to lung cancer screening. The committee will focus on six key components, including identifying high-risk individuals and developing radiological guidelines for national screening programs.

SourceInternational Association for the Study of Lung Cancer·JournalJournal of Thoracic Oncology·DateDec 15, 2011

Penn study shows how B cells may generate antibodies after vaccination

Researchers at Penn Medicine discovered that B cells can produce unequal daughter cells through a process involving helper T cells and specific proteins. This finding may explain how lifelong antibodies are generated after vaccination, and could also shed light on the development of cancerous blood cells like leukemia.

SourceUniversity of Pennsylvania School of Medicine·JournalScience·DateDec 15, 2011

Physics strikes the right note with classical musicians

A professor of physics, internationally renowned composer, and award-winning violinist create a series of classical compositions inspired by particle physics. The 'Particle Partitas' showcase the connection between subatomic particles and music, with a debut set to take place in the UK.

SourceIOP Publishing·JournalPhysics World·DateDec 15, 2011
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.

Acid rain poses a previously unrecognized threat to Great Lakes sugar maples

A new study reveals that acid rain's impact on Great Lakes sugar maples goes beyond soil acidification. Excess nitrogen from acid rain slows microbial decay of dead leaves, creating a physical barrier for seedlings. This mechanism is expected to worsen as nitrogen deposition increases by the end of the century.

SourceUniversity of Michigan·JournalJournal of Applied Ecology·DateDec 15, 2011

Heart failure study: Health-literate patients not always adept at managing care

A study by Purdue University found that health-literate patients with advanced degrees did not manage their heart failure symptoms better than those with lower literacy levels. Health literacy, a patient's ability to read and understand health information, was associated with proper daily care but not self-care management. The research...

SourcePurdue University·JournalJournal of Cardiovascular Nursing·DateDec 15, 2011

Blood-sucking mosquitoes keep their cool

Researchers discovered that mosquitoes can control their body temperature by releasing cooling fluid during feeding, a strategy that protects them from heat stress and potential hosts' defenses. This finding has implications for controlling mosquito populations and diseases they spread.

SourceCell Press·JournalCurrent Biology·DateDec 15, 2011
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.

Hide and seek signals

New research at the Weizmann Institute shows how blood vessel cells 'hide' signals from immune cells, only allowing those with special training to cross. This selective barrier prevents certain immune cells from reaching tumors near blood vessels.

SourceWeizmann Institute of Science·JournalNature Immunology·DateDec 15, 2011

Researchers describe a new genetic program that converts static cells into mobile invasive cells

Researchers at IRB Barcelona have discovered a new genetic program that converts epithelial cells into mobile invasive cells, which is common in embryonic development and tumour progression. The GATA6 gene plays a key role in this process, triggering survival factors and degrading the cellular matrix to facilitate cell migration.

SourceInstitute for Research in Biomedicine (IRB Barcelona)·JournalDevelopmental Cell·DateDec 15, 2011
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.

Behavioral interventions can increase condom use, reduce sexually transmitted infections

A recent meta-analysis found that behavioral interventions can effectively promote condom use and reduce the incidence of sexually transmitted infections (STIs), including HIV, for up to four years. The studies included in the analysis assessed behavior changes and biological outcomes worldwide, with a focus on at-risk populations.

SourceLifespan·JournalJAIDS Journal of Acquired Immune Deficiency Syndromes·DateDec 15, 2011

Ohio State researchers discover hereditary predisposition of melanoma of the eye

Researchers at Ohio State University have discovered a hereditary cancer syndrome that increases risk for uveal melanoma, lung cancer, brain cancer, and possibly other types of cancer due to mutations in the BAP1 gene. The study identifies six families with this syndrome, which can be screened for using a clinical test.

SourceOhio State University Wexner Medical Center·JournalJournal of Medical Genetics·DateDec 15, 2011

Meteorite shockwaves trigger dust avalanches on Mars

A team of researchers led by an undergraduate student at the University of Arizona has discovered that meteorite shockwaves trigger massive dust avalanches on Mars. The study found that shockwaves preceding the actual impact cause dust avalanches, revealing a new way impacts shape the planet's surface.

SourceUniversity of Arizona·JournalIcarus·DateDec 15, 2011
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.

Same-sex marriage laws reduce doctor visits and health care costs for gay men

A new study found that same-sex marriage laws in Massachusetts led to significant reductions in medical care visits and mental health care costs among gay and bisexual men. The study, which analyzed data from a large community-based health clinic, suggests that marriage equality may produce broad public health benefits by reducing stre...

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Public Health·DateDec 15, 2011

Young adults drop exercise with move to college or university: McMaster researchers

A study by McMaster researchers found that young adults' physical activity declines sharply after transitioning to university or college, with men experiencing the largest decrease. This decline can be attributed to a combination of factors, including changes in lifestyle and reduced engagement in leisure activities.

SourceMcMaster University·JournalAmerican Journal of Preventive Medicine·DateDec 15, 2011

In the genome, an answer to a mysterious movement disorder

A new study finds that nearly all individuals with paroxysmal kinesigenic dyskinesia (PKD) carry mutations in the PRRT2 gene, leading to abnormal neural communication and hyperexcitability. The condition can be well-controlled with existing drugs and often resolves with age.

SourceCell Press·JournalCell Reports·DateDec 15, 2011

NASA eyes power in Tropical Storm Washi, warnings in the Philippines

Tropical Storm Washi is expected to make landfall in Surigao del Sur early tomorrow afternoon and will bring heavy rainfall and gusty winds to the region. Residents are advised to prepare for the storm's arrival, as it has been classified as a Category 1 tropical cyclone with maximum sustained winds near 35 knots.

SourceNASA/Goddard Space Flight Center·DateDec 15, 2011
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.

Lead levels in drinking water spike when copper and lead pipes joined

A new study by Washington University in St. Louis found that joining old lead pipes with new copper lines using brass fittings increases the amount of lead released into drinking water supplies due to galvanic corrosion. This can make the problem worse for safety-minded, lead-pipe-removal programs at water utilities across the country.

SourceWashington University in St. Louis·DateDec 15, 2011

Study of skates and sharks questions assumptions about 'essential' genes

Researchers have found that elasmobranchs, including skates and sharks, lack a cluster of genes, HoxC, previously thought to be essential for proper development. This discovery challenges the assumption that all jawed vertebrates possess a full complement of nearly identical genes for critical aspects of development.

SourceMDI Biological Laboratory·JournalScience·DateDec 15, 2011
Celestron NexStar 8SE Computerized Telescope

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

Scientists uncover evidence on how drug-resistant tuberculosis cells form

Researchers discovered that mycobacterial cell growth patterns determine their susceptibility to antibiotics, providing new avenues for targeted treatment. The findings could lead to more effective treatments for the deadly disease, which kills over 1.5 million people annually.

SourceHarvard T.H. Chan School of Public Health·JournalScience·DateDec 15, 2011

NASA's RXTE detects 'heartbeat' of smallest black hole candidate

Astronomers identify smallest-known black hole using data from NASA's Rossi X-ray Timing Explorer (RXTE). The 'heartbeat' pattern, similar to an electrocardiogram, suggests a minuscule black hole weighing less than three times the sun's mass.

SourceNASA/Goddard Space Flight Center·JournalThe Astrophysical Journal Letters·DateDec 15, 2011

Goddard scientists selected as participating scientists in missions

Five NASA Goddard scientists have been selected to participate in the Mars Science Laboratory (MSL) and Cassini missions. Dr. Jennifer Eigenbrode will study high-energy ionizing radiation on Mars' sediments, while Dr. Daniel Glavin will investigate amines of biological origin using new Sample Analysis at Mars protocols. Dr. Michael Smi...

SourceNASA/Goddard Space Flight Center·DateDec 15, 2011

Robotic therapy may provide lasting gains for immobilized stroke survivors

A new study found that robotic therapy can improve walking ability in severely impaired stroke survivors, with five times more patients able to walk without assistance. However, the benefits were only seen in the most severely impaired patients, highlighting the importance of patient selection for this type of treatment.

SourceAmerican Heart Association·DateDec 15, 2011
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.

Team designs a bandage that spurs, guides blood vessel growth

A team of researchers has designed a microvascular stamp that uses living cells to deliver growth factors to damaged tissues in a defined pattern. After a week, the resulting network of new blood vessels mirrors the pattern of the stamp's channels, demonstrating controlled growth and spacing.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalAdvanced Materials·DateDec 15, 2011

Discovery of a 'dark state' could mean a brighter future for solar energy

Researchers at the University of Texas at Austin have discovered a way to capture hot electrons, increasing the efficiency of solar cells to 44 percent. By exploiting a 'dark state' in organic plastic semiconductor materials, they found that two electrons can be generated from one photon of sunlight.

SourceUniversity of Texas at Austin·JournalScience·DateDec 15, 2011
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.

Multisensory integration: When correlation implies causation

Humans exploit correlation between signal temporal structures to decide which signals to combine. Multisensory integration occurs when auditory and visual streams have similar temporal patterns, resulting in improved precision and accuracy. This research highlights a key organizational principle for multisensory perceptual grouping.

SourceMax-Planck-Gesellschaft·JournalCurrent Biology·DateDec 15, 2011

Study takes aim at education-based death rate disparities

A study found that middle-aged adults with low education levels are twice as likely to die as those with higher education, despite progress in reducing health disparities. New causes of death are fueled by high rates of mortality among people with lower education.

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateDec 15, 2011

New light on medicinal benefits of plants

The release of genetic data on medicinal plants could lead to discovering new drug candidates and increasing the efficacy of existing ones. Researchers have developed a collection of data that will aid in understanding how plants produce medicinally useful compounds.

SourceNorwich BioScience Institutes·DateDec 15, 2011

Close family ties keep cheaters in check, study finds

Researchers found that cooperation among amoebae depends on their genetic relatedness, with low-relatedness populations exhibiting high cheating rates. The study suggests that population bottlenecks can stabilize cellular cooperation by eliminating diversity and restarting the population from a single cell.

SourceWashington University in St. Louis·JournalScience·DateDec 15, 2011
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 biodiversity data publishing framework proposed

A new biodiversity data publishing framework has been proposed by the Global Biodiversity Information Facility (GBIF) to encourage and facilitate the sharing of biodiversity data. The framework aims to overcome barriers to access and publishing of data, making it the expected norm for biodiversity research.

SourceGlobal Biodiversity Information Facility·JournalBMC Bioinformatics·DateDec 15, 2011

I wanna talk like you (oo)

Researchers studied Campbell's monkeys and found that females pick up habits from each other through grooming and contact calls. The study suggests that human speech evolved gradually from ancestral primate vocalisations and social patterns, influenced by environmental factors rather than genetic predisposition alone.

SourceBMC (BioMed Central)·JournalBMC Evolutionary Biology·DateDec 15, 2011

New research could lead to enhanced MRI scans

Researchers at the University of Southampton are working on enhanced MRI scans that can detect cancerous cells before they cause health problems. The new technology uses hyperpolarization to create incredibly strong NMR signals that last long enough for scans, allowing for earlier detection of abnormalities.

SourceUniversity of Southampton·DateDec 15, 2011

Metabolomx test detects lung cancer from breath

A study published in the Journal of Thoracic Oncology found that a breath test using Metabolomx's colorimetric sensor array can detect lung cancer and differentiate between its types with high accuracy. The test shows promise as a non-invasive, rapid, and inexpensive companion diagnostic for early lung cancer detection.

SourceBurns McClellan·JournalJournal of Thoracic Oncology·DateDec 15, 2011
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.