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Science News for July 11, 2013


Use redistricting maps to make organ allocation more equitable, Johns Hopkins researchers advocate

Researchers at Johns Hopkins Medicine have created a new model to allocate organs from deceased donors more equitably. The model uses mathematical formulas similar to those used in redistricting maps to analyze supply and demand factors, reducing geographic disparities by half and significantly decreasing waitlist deaths.

SourceJohns Hopkins Medicine·JournalAmerican Journal of Transplantation·DateJul 11, 2013

New therapeutic strategy targets dengue virus using artificial microRNAs

Researchers have identified key regions in the dengue virus genome that can be targeted to prevent replication. Artificial microRNAs were constructed to specifically target these sites, leading to effective inhibition of viral replication in humans. This innovative approach offers new hope for treating millions affected by dengue fever.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalNucleic Acid Therapeutics·DateJul 11, 2013

Lab tests key to identifying, treating infectious diseases

A new guide from the Infectious Diseases Society of America and American Society for Microbiology provides guidance on using laboratory tests to diagnose infectious diseases. The guide highlights key findings, including the importance of accurate lab results and proper specimen collection and management.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateJul 11, 2013

Choline intake improves memory and attention-holding capacity

Researchers found that choline supplementation improved long-term memory retention and attention in rats, with prenatal choline intake also benefiting offspring. The study suggests a potential link between choline nutrition and cognitive function.

SourceUniversity of Granada·JournalNutritional Neuroscience·DateJul 11, 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.

New theory uncovers cancer's deep evolutionary roots

Researchers propose a new theory linking cancer's evolutionary roots to ancient life forms. If correct, it may transform cancer therapy by revealing a systematic response to stress or physical challenges.

SourceArizona State University·JournalPhysics World·DateJul 11, 2013

Novel drug acts in unique way to protect against kidney injury

A new drug called Bendavia has been shown to prevent acute kidney injury (AKI) in animal models and is currently being studied for kidney disease. By protecting the unique fatty compound cardiolipin, Bendavia helps preserve mitochondrial structure and function, leading to accelerated ATP recovery and reduced cell death.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateJul 11, 2013

Stellar monsters do not collide -- no hope for a spectacular catastrophe

Astronomers at the University of Warsaw discovered that stellar monsters with masses 200-300 times that of our Sun will not collide until billions of years from now. Due to their large distance apart and lack of expansion, there is no mechanism for their orbit to tighten, making a spectacular collision impossible.

SourceUniversity of Warsaw, Faculty of Physics·DateJul 11, 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.

First estrogen receptor mutation found in a young woman

Researchers identified a young woman with an estrogen receptor-α mutation that blocks the hormone's action, resulting in high estrogen levels and reproductive issues. The study found that the woman had significantly elevated estrogen levels compared to normal ranges, despite having no effect from estrogen.

SourceMedical College of Georgia at Augusta University·JournalNew England Journal of Medicine·DateJul 11, 2013

Whole chickens from farmers markets may have more pathogenic bacteria

A study found that whole chickens purchased from farmers markets had significantly higher levels of bacteria like Campylobacter and Salmonella compared to those from grocery stores. This suggests interventions like antimicrobial rinses may be necessary to lower pathogen loads on poultry carcasses.

SourcePenn State·JournalJournal of Food Safety·DateJul 11, 2013

New insight into the human genome through the lens of evolution

Australian scientists discovered that up to 30% of the human genome is conserved in RNA structure, contrary to previous estimates. This finding suggests that non-coding DNA may play a crucial role in regulating gene expression and development.

SourceGarvan Institute of Medical Research·JournalNucleic Acids Research·DateJul 11, 2013

Solar tsunami used to measure Sun's magnetic field

Researchers from UCL's Mullard Space Science Laboratory used data from the Japanese Hinode spacecraft to measure the Sun's magnetic field. The study found that the field is approximately ten times weaker than previously estimated.

SourceUniversity College London·JournalSolar Physics·DateJul 11, 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.

Health-care system factors may have less influence on kidney-related racial disparities

A study analyzing data from 1000 black and white patients with kidney disease found that black patients experienced a faster progression to kidney failure. The disparity was predominantly present in patients with diabetes and those who excreted greater amounts of protein, indicating more advanced kidney dysfunction.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateJul 11, 2013

Global study stresses importance of public Internet access

A recent global study found that community access to computer and Internet technology remains crucial for connecting people to information and skills in an increasingly digital world. The study highlights the benefits of public access venues for marginalized groups, including education, employment, and health outcomes.

SourceUniversity of Washington·DateJul 11, 2013

Geothermal power facility induces earthquakes, study finds

A study published in Science found a strong correlation between seismic activity and operations at the Salton Sea Geothermal Field in southern California. The researchers tracked earthquake activity with production data for the geothermal power plant and found that seismicity increased as operations expanded.

SourceUniversity of California - Santa Cruz·JournalScience·DateJul 11, 2013
Apple iPhone 17 Pro

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

Elephants depend on water for cooling, but only when it gets too hot

Researchers found that elephants increase their skin's permeability during hot summer months and rely on evaporation of sweat to cool down. The study suggests that climate plays a significant role in an elephant's water dependence, with different species requiring varying amounts of water for cooling.

SourceThe Company of Biologists·JournalJournal of Experimental Biology·DateJul 11, 2013

Moms need help to overcome breastfeeding worries, study says

A University of Alberta study found that new moms are weaning their infants early and only 54% were exclusively breastfeeding three months after giving birth. The study suggests addressing concerns and misconceptions about breastfeeding is crucial for promoting long-term breastfeeding.

SourceUniversity of Alberta·JournalBMC Pediatrics·DateJul 11, 2013

NASA sees Typhoon Soulik's eye closed for 'renovations'

Typhoon Soulik's eye is filling with clouds, indicating a weakening storm, but satellite data shows the eyewall is reforming. The Joint Typhoon Warning Center reports that the storm is forecast to move near Japan and Taiwan before making landfall in China.

SourceNASA/Goddard Space Flight Center·DateJul 11, 2013

Important advance in the fight against skin cancer

Researchers at IMIM have discovered a new function of the IB protein involved in squamous-cell carcinoma development. The study found that nuclear IB is lost during tumour progression, making it a potential biomarker for diagnosis and prognosis.

SourceIMIM (Hospital del Mar Medical Research Institute)·JournalCancer Cell·DateJul 11, 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.

The brain processes complex stimuli more cumulatively than we thought

A new study reveals that the brain's representation of complex features may start earlier and be more cumulative than previously thought. Researchers analyzed nerve cell pairs in two adult macaques and found that the neuronal circuit generating pair-association was only in area TE, not in area 36.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateJul 11, 2013

Critical pathway in cell cycle may lead to cancer development

A team of scientists at the Salk Institute for Biological Studies has identified a critical pathway in cell cycle control that, when disrupted, leads to cancer cell proliferation. Shortened telomeres, which occur with cellular aging, activate a DNA damage response that arrests cell growth.

SourceSalk Institute·JournalMolecular Cell·DateJul 11, 2013

Killer whale genetics: Redefining stock structure in a marine top predator

A recent study by NOAA scientists reveals that distinct groups of killer whales gather seasonally and exhibit low levels of gene flow, indicating separate subpopulations. Genetic evidence suggests a revision to the current stock designations for killer whales in the western Gulf of Alaska and Aleutian Islands.

SourceAmerican Genetic Association·JournalJournal of Heredity·DateJul 11, 2013

Hidden strains of HPV found in 'virus-negative' genital warts

Researchers found that 'virus-negative' genital warts can harbor small amounts of more distantly related viruses that escaped previous detection. The study identified 23 new types of HPV and two known sequences, highlighting the diverse pool of previously unknown HPV types infecting humans.

SourceElsevier·JournalVirology Journal·DateJul 11, 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.

Autism Speaks collaborative releases first full genome sequencing for autism

A collaborative effort by Autism Speaks has found full genome sequencing examining the entire DNA code of individuals with autism spectrum disorder (ASD) and their family members. The study identified genetic variations associated with risk for ASD, including de novo, X-linked, and inherited DNA lesions in four new genes.

SourceAutism Speaks·JournalAmerican Journal of Human Genetics·DateJul 11, 2013

Hubble spots azure blue planet

For the first time, Hubble has measured the visible color of an exoplanet, revealing HD 189733b to be a deep azure blue due to its hazy and turbulent atmosphere. The planet's atmosphere is scorching with temperatures over 1000 degrees Celsius and features glass rain.

SourceESA/Hubble Information Centre·JournalThe Astrophysical Journal Letters·DateJul 11, 2013

Cells make costume changes for cardiac regeneration

Scientists have identified a novel mechanism of cardiac regeneration in zebrafish, where muscle cells from the atrium actively migrate into damaged parts of the heart muscle in the ventricle. This process, known as transdifferentiation, results in the formation of new ventricular tissue and restoration of cardiac function.

SourceMax-Planck-Gesellschaft·JournalNature·DateJul 11, 2013

New molecularly imprinted nicotine receptors

Researchers have created synthetic receptors that mimic biological nicotine receptors, showing promise in clinical detection and treatment therapies for nicotine addiction. The new molecularly imprinted polymers (MIPs) demonstrate high selectivity and effectiveness across a wide pH range.

SourceDe Gruyter·JournalMolecular Imprinting·DateJul 11, 2013

Clinicians should pay attention to stroke patients who cannot walk at 3-6 mon after onset

A case study reported by Jeong Pyo Seo et al. in Neural Regeneration Research (2013) highlights the importance of investigating delayed gait recovery in stroke patients who cannot walk within 3-6 months after onset. The patient, a 32-year-old female, showed improved gait function despite severe spasticity and sensory-motor dysfunction.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateJul 11, 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.

Parental divorce in childhood is linked to raised inflammation in adulthood

Researchers at University College London found a significant association between parental divorce during childhood and elevated levels of inflammatory markers in adulthood. Children who experienced parental separation before age 16 had a 16% higher level of C-reactive protein at age 44.

SourceUniversity College London·JournalPsychoneuroendocrinology·DateJul 11, 2013

Second ACL injuries 6 times more likely after reconstruction

Researchers analyzed data from 78 subjects who underwent ACLR and found that female athletes were over four times more likely to suffer an injury within 24 months than their healthy counterparts. The study also showed a trend for female subjects to be two times more likely to suffer an injury on the opposite knee.

SourceAmerican Orthopaedic Society for Sports Medicine·DateJul 11, 2013
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Molecular discovery puts cancer treatment in a new perspective

Researchers have gained groundbreaking knowledge about proteases, enzymes that play a role in cancer cell development. The study reveals that proteases can bind to each other instead of just cleaving, which may lead to the development of new anticancer drugs.

SourceUniversity of Copenhagen·JournalJournal of Biological Chemistry·DateJul 11, 2013

Nature: How forests cope with more carbon dioxide

A study by researchers found that forests in the northern hemisphere increase their water use efficiency as atmospheric carbon dioxide concentrations rise, exceeding theoretical expectations. This adaptation helps plants conserve water despite increased photosynthesis, potentially shifting the global water and carbon cycle.

SourceHelmholtz Association·JournalNature·DateJul 11, 2013

NASA sees Chantal weaken to a remnant

Tropical Storm Chantal weakened to a remnant low pressure area over Hispaniola on July 10, with NASA tracking its demise. The storm brought heavy rainfall and gusty winds to the region, and its remnants are expected to affect Jamaica, Cuba, and the Bahamas.

SourceNASA/Goddard Space Flight Center·DateJul 11, 2013

Grazing slugs hinder grassland restoration

Research shows that selective grazing by slugs can prevent key grassland species from taking hold and reduce overall plant diversity. The team found that some of the most ecologically important species, such as red clover, are particularly tasty to slugs, which may hinder restoration efforts.

SourceNewcastle University·JournalAnnals of Botany·DateJul 11, 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.

Acceptance predicts satisfaction in later life

A new study found that acceptance of what cannot be changed is crucial for older adults' happiness after losing independence. The ability to exert control was also linked to satisfaction, but secondary control - adapting to environment changes - played a more significant role in care residents.

SourceSpringer·JournalJournal of Happiness Studies·DateJul 11, 2013

Researchers estimate over 2 million deaths annually from air pollution

A new study estimates that human-caused outdoor air pollution causes around 470,000 premature deaths each year due to increased ozone levels. Additionally, fine particulate matter (PM2.5) is linked to an estimated 2.1 million annual deaths. The effects of past climate change on air quality and health are found to be relatively small.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateJul 11, 2013

Cry analyzer seeks clues to babies' health

Researchers developed a computer-based tool to analyze babies' cries for subtle acoustic features that can indicate neurological problems or developmental disorders. The new analyzer uses machine learning algorithms to evaluate over 80 parameters, offering non-invasive ways to measure disruptions in young babies' brains and behavior.

SourceBrown University·DateJul 11, 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.

Hippo pathway to better cancer treatment?

Researchers at UBC have discovered that methylation of a protein called Yap is critical for the function of the Hippo pathway. Loss of the Set7 enzyme resulted in cell growth and larger organs, suggesting potential for drugs to activate this pathway to stop cancer cell growth.

SourceUniversity of British Columbia·JournalDevelopmental Cell·DateJul 11, 2013

Recession led teens to focus on social problems and the environment

High school students became more concerned for others and the environment during the Great Recession, according to a new study. Researchers found that students who graduated from high school during the recession were more interested in social issues and saving energy.

SourceSan Diego State University·JournalSocial Psychological and Personality Science·DateJul 11, 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.

Buying behavior can be swayed by cultural mindset

Research reveals that people with individualistic mindsets prioritize an item's inherent value, while those with collectivist mindsets focus on the relationships between items. This difference in mindset affects consumer decision-making, including choices about favorite sets and purchasing decisions.

SourceAssociation for Psychological Science·JournalPsychological Science·DateJul 11, 2013

Alternative biofuel crops to fuel the future of the poor

The IFAD-ICRAF Programme will develop and scale up pro-poor, sustainable biofuel production models in Asia, Africa, and Latin America. It aims to create energy, food security, livelihood, and income-generating opportunities for poor households.

SourceWorld Agroforestry Centre (ICRAF)·DateJul 11, 2013
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.

Understanding bulls' gene-rich Y chromosomes may improve herd fertility

A recent study has identified 1,274 genes in the Y chromosome of cattle, a significant increase compared to other primates. This discovery may help biologists better understand how cattle and other mammals evolved and improve fertility in the dairy and beef industry.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJul 11, 2013

Insect discovery sheds light on climate change

Scientists discovered a new, extinct family of insects in British Columbia and Washington state that helps understand how animals responded to global climate change. The Eorpidae family's extinction raises questions about the impact of evolutionary diversification and climate change on communities.

SourceSimon Fraser University·JournalJournal of Paleontology·DateJul 11, 2013

50-year-old assumptions about strength muscled aside

Researchers have redefined the understanding of how muscles generate power, expanding the scope of disease treatments. High-energy X-rays and cloud computing facilitated this breakthrough, revealing that muscle force comes from both filament overlap and lattice work.

SourceDOE/Argonne National Laboratory·DateJul 11, 2013
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.

Researchers develop systems that convert ordinary language to code

Researchers at MIT create systems that can translate natural-language descriptions into working code in a few narrow cases. The method involves mapping regular expressions to equivalent natural-language expressions, enabling programmers to specify complex searches using simple language.

SourceMassachusetts Institute of Technology·DateJul 11, 2013

Research reveals Earth's core affects length of day

Research at University of Liverpool found variations in Earth's core affect day length over periods of one to 10 years. The study resolves previously poorly characterised changes and provides new insight into the chemistry and mineralogy of the Earth's deep interior.

SourceUniversity of Liverpool·JournalNature·DateJul 11, 2013

Glass sponges take advantage of retreating Antarctic ice shelves

In the western Weddell Sea, Antarctic glass sponges have increased in density threefold between 2007 and 2011, colonizing new habitats and outcompeting other species for food. These rapid growths suggest that communities at the sea bed react more quickly to climate-related changes than previously thought.

SourceHelmholtz Association·JournalCurrent Biology·DateJul 11, 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.

What is glass? A million-dollar question

The University of Akron researchers aim to understand the fundamental origin of glass transition, with potential applications in flexible electronics, corrosion-resistant coatings, and vaccine preservation. They plan to use biomimicry to evolve new materials with desired properties.

SourceUniversity of Akron·DateJul 11, 2013
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Funds to aid macular degeneration research

Bioengineering professor Dimitrios Morikis and research scientist Monte Radeke are searching for chemical compounds targeting the complement system to treat age-related macular degeneration. They will use computational screening, experimental testing, and human retinal cell-based models to identify potential treatments.

SourceUniversity of California - Riverside·DateJul 11, 2013

Higher BMI increases risk of gallstones, especially in women

A new study published in Hepatology reveals that higher body mass index (BMI) is associated with an increased risk of gallstone disease, especially in women. The research found a significant correlation between BMI and gallstone risk, with women facing a higher risk than men.

SourceWiley·JournalHepatology·DateJul 11, 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.

Preventing cell death in osteoarthritis

Researchers have found a naturally occurring molecule, Urocortin, which protects cells in the joints from being destroyed in osteoarthritis. The discovery could lead to the development of new medicines to prevent joint degradation.

SourceUniversity of Manchester·JournalCell Death and Disease·DateJul 11, 2013

Ship noise impairs feeding and heightens predation risk for crabs

A study published in Animal Behaviour found that ship noise disrupts feeding for common shore crabs, while also heightening their predation risk. The research suggests that the combination of reduced foraging time and increased vulnerability to predators may negatively impact crab growth, fitness, survival, and harvested populations.

SourceUniversity of Exeter·JournalAnimal Behaviour·DateJul 11, 2013
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.

ID got you, under the skin

A team at Jadavpur University has developed a computer algorithm that can analyze the minutiae of blood vessels revealed by an infra-red scan of a person's face. The thermogram shows the pattern of blood vessels almost down to the smallest capillary with an accuracy of over 97%, making it suitable for high-security applications.

SourceInderscience Publishers·JournalInternational Journal of Computational Intelligence Studies·DateJul 11, 2013

Political options tested in virtual wind tunnel

A computer model was developed to assess how different levels of segregation would affect violence in Jerusalem. The study found that social distance is a key mechanism explaining violence, with higher levels increasing the likelihood of violent encounters.

SourceETH Zurich·JournalAmerican Journal of Political Science·DateJul 11, 2013
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.

As ice cover disappears, life in the frigid Antarctic moves fast

Researchers discovered a fast-growing community of glass sponges in the Antarctic, contradicting their long lifespan estimates. The seafloor takeover is driven by climate change-induced ice shelf collapse, potentially benefiting glass sponges as winners in the process.

SourceCell Press·JournalCurrent Biology·DateJul 11, 2013

New hope in the fight against childhood cancer

Researchers have developed two monoclonal antibodies that boost the immune system to fight neuroblastoma, a form of childhood cancer. The study found that 40-60% of tumors treated with the antibodies regressed in laboratory models, leading to long-term survival.

SourceUniversity of Southampton·JournalClinical Cancer Research·DateJul 11, 2013

NASA Hubble finds a true blue planet

The NASA Hubble Space Telescope has confirmed the presence of a true blue planet, HD 189733b, by detecting changes in light color as it passes behind its star. The observations indicate a deep blue color due to a hazy atmosphere with high clouds containing silicate particles.

SourceNASA/Goddard Space Flight Center·DateJul 11, 2013

Gene therapy using lentivirus promising in 3 youngsters

A new gene therapy approach using a partially inactivated lentivirus has shown significant improvement in three children with Wiskott-Aldrich Syndrome. The therapy corrects the genetic defect in blood cells by introducing a normal WASP gene, reducing the risk of cancer-promoting genes.

SourceBaylor College of Medicine·JournalScience·DateJul 11, 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.

Artifact suppression and analysis of brain activities with EEG signals

A novel data adaptive technique is used to suppress artifacts and extract regional brain activities from EEG signals. The study successfully identifies individual motor imagery based on alpha component activities, revealing distinct regional brain responses to different stimuli.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateJul 11, 2013