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Science News for April 2, 2013


Sampling of embryonic DNA after IVF without biopsy

A new study published in Reproductive Biomedicine Online reveals that blastocysts' fluid-filled cavities contain DNA from the embryo, allowing for diagnosis of genetic diseases without biopsy. Researchers extracted fluid from embryos at the 5-day-old stage and detected cell-free DNA using PCR and DNA microarray analysis.

SourceElsevier·JournalReproductive BioMedicine Online·DateApr 2, 2013
Apple iPhone 17 Pro

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

Ozone masks plants volatiles, plant eating insects confused

Researchers found that high ozone levels interfere with pollinators finding flowers and predator insects finding host plants. Insects rely on volatile organic compounds to detect odors, but ozone degrades these compounds, leading to confusion.

SourcePenn State·JournalEnvironmental Research Letters·DateApr 2, 2013
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.

Stop 'bad guys with guns' by implementing good policies

A new study reviews the National Rifle Association's National Shield School Proposal, finding it flawed and expensive. The authors suggest addressing troubled youth and ease of access to weapons as key factors in preventing school violence.

SourceSpringer Science+Business Media·JournalAmerican Journal of Criminal Justice·DateApr 2, 2013

Fast track to mouse modeling

Scientists have developed a new method to create genetically modified mice that accelerates the process by four months, using TALEN enzymes. This technique allows for the efficient production of mouse models for diseases like dementia, reducing the need for numerous test animals.

SourceTechnical University of Munich (TUM)·JournalProceedings of the National Academy of Sciences·DateApr 2, 2013

UC research examines ancient Puebloans and the myth of maize

A University of Cincinnati graduate student archaeologist has discovered that the ancient Puebloans relied on a variety of food sources, including purslane, pinyon nut, and juniper berries, in addition to maize. The findings suggest that the Puebloans' subsistence strategies were more complex and sustainable than previously thought.

SourceUniversity of Cincinnati·DateApr 2, 2013
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.

Landmark study describes prostate cancer metastasis switch

A CU Cancer Center study reveals that the transcription factor SPDEF regulates E-Cadherin production, inhibiting prostate cancer metastasis. The researchers found that increasing or decreasing SPDEF levels directly affects E-Cadherin expression, making it a crucial factor in preventing cancer spread.

SourceUniversity of Colorado Anschutz Medical Campus·JournalJournal of Biological Chemistry·DateApr 2, 2013

Bioglass helping to mend bones

Researchers at UPV/EHU have created a biodegradable polymer/bioglass composite system that can help mend broken bones. The addition of bioglass to the polymer improves its mechanical properties, but it also reduces thermal stability, which could lead to degradation and harm to cells.

SourceElhuyar Fundazioa·JournalPolymer Degradation and Stability·DateApr 2, 2013
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.

An inside look at carnivorous plants

Researchers at Harvard Forest discovered a diverse array of organisms inside carnivorous pitcher plants, including bacteria, midge larvae, and rotifers. The study found that predator-prey interactions play a key role in shaping the food web, with removing one species affecting others.

SourceHarvard University·JournalOikos·DateApr 2, 2013

Pedestrians at serious risk when drivers are 'permitted' to turn left

A study by Oregon State University found that drivers often don't look for pedestrians during permitted left turns, putting them at a high risk of being hit. The research suggests that more states and cities should consider prohibiting permitted left turns while pedestrians are allowed to be in the crosswalk.

SourceOregon State University·DateApr 2, 2013
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.

New clues in the search to rediscover the mysterious Maya Blue formula

A team of chemists from the University of Valencia has proposed a two-stage process for creating Maya Blue, a highly-resistant pigment used in ancient Mesoamerican cultures. The researchers believe that indigo and palygorskite clay can be combined through heat to form a blue pigment with variable proportions.

SourceSpanish Foundation for Science and Technology·JournalMicroporous and Mesoporous Materials·DateApr 2, 2013

Disease over-diagnosis can result in needlessly medicating infants

Gastroesophageal reflux disease is often over-diagnosed and over-treated in infants, increasing the risk of unnecessary medication use. A recent study found that when physicians label common symptoms in infants as GERD, parents are more likely to request medication even if it's ineffective.

SourceUniversity of Missouri-Columbia·JournalPEDIATRICS·DateApr 2, 2013
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.

Dr. Cecilia Bitz to receive prestigious Rosenstiel Award from the University of Miami

Dr. Cecilia Bitz, an associate professor at the University of Washington, will receive the Rosenstiel Award for her contributions to climate and climate change research, particularly in high-latitude regions. Her work focuses on climate modeling, sea ice predictability, and geoengineering perspectives.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·DateApr 2, 2013

Review: Few effective, evidence-based interventions to prevent posttraumatic stress disorder

A systematic review of clinical interventions for adults exposed to traumatic events found only two psychotherapeutic treatments showing promise: Cognitive Behavioral Therapy (CBT) and Collaborative Care. These treatments showed possible benefits in reducing PTSD symptoms, but more research is needed due to the limited evidence base.

SourceUniversity of North Carolina Health Care·JournalAmerican Journal of Preventive Medicine·DateApr 2, 2013

White blood cell enzyme contributes to inflammation and obesity

Researchers at Sanford-Burnham discovered an imbalance between neutrophil elastase and its inhibitor causes inflammation, obesity, insulin resistance, and fatty liver disease. In mouse models and human studies, reversing this imbalance protected against weight gain, metabolic problems, and inflammation.

SourceSanford Burnham Prebys·JournalCell Metabolism·DateApr 2, 2013
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.

New NIH funding for 2 Autism Centers of Excellence

The National Institutes of Health has awarded funding to two new Autism Centers of Excellence, joining nine other centers nationwide in a five-year research effort to identify autism causes and treatments. The centers will focus on early intervention styles and genetic variants associated with autism.

SourceNIH/National Institute of Mental Health·DateApr 2, 2013

How the worm turns

Researchers at UMass Chan Medical School reveal the molecular mechanism behind the roundworm's escape response, linking two separate actions coordinated by tyramine and its interaction with fast- and slow-acting receptors.

SourceUMass Chan Medical School·JournalPLOS Biology·DateApr 2, 2013
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.

Organ donation shortfall at large general hospitals in Ontario

A study found a significant shortfall in organ donations at large general hospitals in Ontario compared to those treating transplant recipients. The rate was 1.4 per 100 deaths, significantly lower than the 5.0 per 100 deaths at transplant hospitals.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateApr 2, 2013

Vitamin P as a potential approach for the treatment of damaged motor neurons

Researchers from Ruhr-University Bochum have discovered that vitamin P can protect motor neurons from dying off in culture. Unlike BDNF, which has limited effectiveness and potential negative consequences, vitamin P triggers a different signaling pathway to promote survival of isolated motor neurons.

SourceRuhr-University Bochum·JournalMolecular and Cellular Neuroscience·DateApr 2, 2013

Negative emotions in response to daily stress take a toll on long-term mental health

A new study published in Psychological Science suggests that chronic negative emotions in response to daily stressors can take a toll on long-term mental health. The research found that participants' overall levels of negative emotions predicted psychological distress and diagnosis of emotional disorders ten years later.

SourceAssociation for Psychological Science·JournalPsychological Science·DateApr 2, 2013
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.

Targeting cholesterol buildup in eye may slow age-related vision loss

A study published in Cell Metabolism suggests that targeting cholesterol metabolism in the eye may prevent severe age-related macular degeneration. Researchers found that macrophages play a key role in clearing cholesterol from the eye, and that with aging, these cells become less efficient at this task.

SourceNIH/National Eye Institute·JournalCell Metabolism·DateApr 2, 2013

Study links diabetes risk to melatonin levels

A new study from Brigham and Women's Hospital found that low nocturnal melatonin secretion levels are associated with an increased risk of developing type 2 diabetes. The study, which accounted for other established risk factors, suggests that melatonin plays a role in regulating glucose metabolism and risk of diabetes.

SourceBrigham and Women's Hospital·JournalJAMA·DateApr 2, 2013

Cholesterol rafts deliver drugs inside cancer cells

Researchers at the University of Colorado Cancer Center have developed a new technology that uses cholesterol rafts to deliver genetic payloads into cancer cells. This innovative approach overcomes the long-standing challenge of delivering nucleic acids across cell membranes.

SourceUniversity of Colorado Anschutz Medical Campus·JournalTherapeutic Delivery·DateApr 2, 2013

Scientists find government justification of new environmental policy unfounded

Researchers found that most environmental reviews were completed within one to two years, contradicting the government's claim of a slow and inefficient process. The study recommends standardized assessment methods, streamlined administration, and more empirical studies to address delays during high economic activity.

SourceCanadian Science Publishing·JournalCanadian Journal of Fisheries and Aquatic Sciences·DateApr 2, 2013
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.

Monkey study reveals why middle managers suffer the most stress

A monkey study by the University of Manchester and Liverpool has found that middle-ranking macaques experience high levels of social stress due to conflicts with both lower- and higher-ranking individuals. The research suggests a possible application to human hierarchies, particularly in workplace settings.

SourceUniversity of Manchester·JournalGeneral and Comparative Endocrinology·DateApr 2, 2013

Symbiotic bacteria program daily rhythms in squid using light and chemicals

A study found that symbiotic bacteria in squids use light and chemical signals to control circadian-like rhythms in the animals. The bacteria entrain gene expression in the squid's head, cycling proteins to synchronize daily rhythms. This discovery has implications for understanding clock genes in other animals, including humans.

SourceAmerican Society for Microbiology·JournalmBio·DateApr 2, 2013

Cartilage damaged from exercise may aid in early osteoarthritis detection

Researchers discovered how nanoscale biomechanical properties of cartilage change at the earliest stages of osteoarthritis, making it more prone to damage from physical activity. GAG depletion affects cartilage stiffness and fluid flow, increasing vulnerability to high-rate activities like running and jumping.

SourceCell Press·JournalBiophysical Journal·DateApr 2, 2013

The way of science

A groundbreaking study by Mügen Terzioglu and colleagues challenges long-held ideas about the protein MTERF1's importance in mitochondrial transcription and translation. The findings, published in Cell Metabolism, demonstrate that MTERF1 is not as crucial to mitochondrial function as previously thought.

SourceKarolinska Institutet·JournalCell Metabolism·DateApr 2, 2013

Putting larval cobia to the acid test

Researchers found that cobia larvae showed remarkable resistance to end-of-century acidification scenarios, but reduced growth and development at more extreme levels. The study provides an optimistic outlook for this species, but highlights the need for further research on how fish react to ocean acidification.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalGlobal Change Biology·DateApr 2, 2013
Fluke 87V Industrial Digital Multimeter

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

Fatty acid metabolite shows promise against cancer in mice

A team of UC Davis scientists found that epoxy docosapentaenoic acid (EDP) inhibits angiogenesis, cutting off oxygen and nutrients that fuel tumor growth. EDP reduces the growth and spread of tumors in mice by starving them of necessary blood vessels.

SourceUniversity of California - Davis Health·JournalProceedings of the National Academy of Sciences·DateApr 2, 2013

LSUHSC research discoveries shed light on common STI

Researchers at LSU Health Sciences Center discovered that a common sexually transmitted infection-causing parasite cultivates bacteria beneficial to it, changing the thinking about which comes first–infection or bacteria. The study found two unique bacterial communities strongly associated with trichomonas infection.

SourceLouisiana State University Health Sciences Center·JournalThe Journal of Infectious Diseases·DateApr 2, 2013
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.

Gynecomastia has psychological impact on adolescent boys, reports plastic and reconstructive surgery

A study by ASPS Member Surgeon Dr. Brian I. Labow and colleagues found that persistent breast enlargement negatively impacts adolescent males' general health, social functioning, mental health, self-esteem, and eating behaviors. Early intervention and treatment for gynecomastia may be necessary to improve negative physical and emotiona...

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateApr 2, 2013

Research reveals how antibodies neutralize mosquito-borne virus

The study reveals the precise structure of the mosquito-transmitted chikungunya virus pathogen bound to antibodies, showing how infection is likely neutralized. Antibodies stabilize the viral surface, hindering fusion and blocking infection. The findings could lead to effective vaccines against the infection.

SourcePurdue University·DateApr 2, 2013
Celestron NexStar 8SE Computerized Telescope

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

Cholesterol buildup links atherosclerosis and macular degeneration

Researchers found that age-related macular degeneration shares a common link with atherosclerosis due to impaired cholesterol efflux in macrophages. The study suggests that cholesterol-lowering eye drops or other medications could prevent vision loss caused by macular degeneration.

SourceWashU Medicine·JournalCell Metabolism·DateApr 2, 2013

'Sharps' injuries have major health and cost impact for surgeons

The review highlights the risks of sharps injuries, including high costs related to contracting serious infectious diseases, with nearly 400,000 incidents occurring annually in the US. Engineered safety devices and proper protocols can prevent many injuries, but clinician compliance remains a crucial factor in reducing their impact.

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateApr 2, 2013

CAMH study shows mental illness associated with heavy cannabis use

Researchers from CAMH found that people with mental illnesses are more than seven times more likely to use cannabis weekly compared to those without a mental illness. The study also shows that individuals with mental illness were 10 times more likely to have a cannabis use disorder.

SourceCentre for Addiction and Mental Health·JournalComprehensive Psychiatry·DateApr 2, 2013

Heart failure doesn't discriminate

A new Northwestern Medicine study found that both black and white Americans have a similar lifetime risk of heart failure, ranging from 20 to 45 percent. The study explored the long-term risk of heart failure in different race groups and found that higher blood pressure and body mass index increased the risk.

SourceNorthwestern University·JournalJournal of the American College of Cardiology·DateApr 2, 2013
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.

3-D scaffolds a new tool to fight cancer

Researchers at Rice University and MD Anderson Cancer Center developed 3D scaffolds that effectively mimic the environment in which tumors develop, allowing for more accurate evaluation of anti-cancer drug responses. The technology holds promise for accelerating the development of cancer therapeutics.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateApr 2, 2013

HIV self-testing: The key to controlling the global epidemic

A systematic review confirms HIV self-testing is effective in removing fear and stigma associated with testing, leading to higher acceptability rates. Self-tests are non-invasive, convenient, and can provide results within 20 minutes, paving the way for early detection and treatment.

SourceMcGill University Health Centre·JournalPLOS Medicine·DateApr 2, 2013

Tiny grazers play key role in marine ecosystem health

These tiny crustaceans feed on nuisance algae that grow on seagrasses, helping to maintain healthy seagrass beds and provide nurseries for commercially important fish and shellfish. Grazers also serve as a food source for larger animals in the ecosystem.

SourceU.S. Geological Survey·JournalEcology·DateApr 2, 2013
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.

Tobacco constituent extraction from snus during consumer use

Scientists at British American Tobacco used a multi-analyte approach to determine tobacco constituent exposure in snus users. Generally, less than a third of each constituent was extracted by consumers during use. The findings provide reference data for developing a laboratory system mimicking real-life extraction.

SourceR&D at British American Tobacco·JournalChemistry Central Journal·DateApr 2, 2013

Study reveals risk factors for blood clots in pregnant and postnatal women

A study published in the journal Blood found that pregnant and postnatal women with certain medical conditions, such as varicose veins or heart disease, are at higher risk of developing blood clots. The research also identified other risk factors, including obesity, bleeding during pregnancy or labour, and a history of premature birth.

SourceUniversity of Nottingham·JournalBlood·DateApr 2, 2013

Fighting listeria and other food-borne illnesses with nanobiotechnology

Researchers at Rensselaer Polytechnic Institute have developed a new method to kill deadly pathogenic bacteria, including listeria, using nature-inspired nanobiotechnology. The coating kills listeria on contact, even at high concentrations, without affecting other bacteria.

SourceRensselaer Polytechnic Institute·JournalScientific Reports·DateApr 2, 2013
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.

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.

Epileptic seizures can propagate using functional brain networks

Researchers have discovered that epileptic seizures in temporal-lobe epilepsy patients can propagate through anatomically and functionally connected brain networks. The study found reduced gray-matter concentrations in certain brain regions, which correlated with changes in functional connectivity and communication between brain areas.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalBrain Connectivity·DateApr 2, 2013

Telerobotic system designed to treat bladder cancer better

The new system uses micro-robotics to provide surgeons with a better view of bladder tumors, allowing for more accurate diagnoses and easier tumor removal. The device can operate in challenging environments and has been shown to have sub-millimeter precision.

SourceVanderbilt University·JournalIEEE Transactions on Biomedical Engineering·DateApr 2, 2013

Investigational vaccine not effective in reducing post-operative staph infections

A new vaccine candidate for post-operative staph infections failed to demonstrate efficacy in reducing serious infections and was associated with increased mortality among patients who developed the infection. The study found no significant difference in efficacy between the vaccine and placebo groups, and reported a higher rate of mul...

SourceJAMA Network·JournalJAMA·DateApr 2, 2013
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.

Can synthetic biology save wildlife?

The rapid development of synthetic biology presents new dialogue opportunities between conservation and synthetic biology communities to address ecological and ethical concerns. The authors highlight five emerging issues requiring discussion, including potential impacts on biodiversity and conservation strategies.

SourcePLOS·JournalPLOS Biology·DateApr 2, 2013

NRC panel advises US DOD on green buildings

A National Research Council expert panel recommends creating a large building performance database to improve the knowledge base about high-performance buildings. The study suggests that measuring energy and water use can help identify cost-effective sustainable practices, but more scientific study is needed to justify environmental ou...

SourceUniversity of Massachusetts Amherst·DateApr 2, 2013