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Science News for November 12, 2012


Researchers unlock ancient Maya secrets with modern soil science

A team of researchers used advanced soil analysis to uncover evidence of ancient Maya maize production in lowland areas, but also found signs of erosion in steeper soils. This study demonstrates the power of modern soil science in understanding past civilizations' treatment of the land and its impact on food security.

SourceAmerican Society of Agronomy·JournalSoil Science Society of America Journal·DateNov 12, 2012

Physicians fail to disclose conflicts of interest on social media

A Johns Hopkins doctor argues that comprehensive guidelines for physicians on disclosing conflicts of interest on social media are lacking. Electronic tags and online profiles could help address this issue, DeCamp says, as physicians' posts can be re-tweeted and potentially biased by financial conflicts.

SourceJohns Hopkins Medicine·JournalJournal of General Internal Medicine·DateNov 12, 2012

A better route to xylan

Joint BioEnergy Institute researchers identify a gene in rice plants that improves extraction of xylan and release of sugars needed for biofuels by over 60%. This breakthrough could lead to more efficient production of advanced biofuels.

SourceDOE/Lawrence Berkeley National Laboratory·JournalProceedings of the National Academy of Sciences·DateNov 12, 2012

Study shows veterans are becoming more segregated in the US

A study by Jay Teachman found that veteran populations are becoming more concentrated in rural areas surrounding military bases. This has led to a decrease in contact between veteran and non-veteran populations, with the proportion of veterans in America declining by an average of 15.54% since 2000.

SourceSAGE·JournalArmed Forces & Society·DateNov 12, 2012
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

UT Arlington physics team demonstrates new power generation technique

The UT Arlington physics team has developed a novel thermoelectric generator using copper sulfide nanoparticles and single-walled carbon nanotubes. The technology, which can convert both light and thermal energy into electrical current, shows increases of up to 80% in light absorption compared to earlier methods.

SourceUniversity of Texas at Arlington·JournalNanotechnology·DateNov 12, 2012

HIV-1 vaccine development: Pinning down a moving target

Researchers have found that targeting human endogenous retroviruses (HERVs) can effectively eliminate HIV-infected cells using immune responses. This discovery could lead to the development of novel HIV vaccines by leveraging HERV-targeted T-cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 12, 2012

Genetic link between pancreatitis and alcohol consumption, says Pitt team

Researchers identified a genetic variant on chromosome X that predicts high-risk men who drink heavily are at risk for developing chronic pancreatitis. The discovery enables doctors to identify patients with early signs of pancreatitis or acute attacks, allowing them to take preventative action and give the pancreas a chance to heal.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalNature Genetics·DateNov 12, 2012
Apple iPhone 17 Pro

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

Soothing sounds during cataract surgery reduces patient anxiety

A novel approach to cataract surgery using binaural beats audio therapy significantly reduces patients' anxiety, with consistent results in heart rate and blood pressure. The study highlights the potential for this simple, inexpensive method to improve patient outcomes and satisfaction.

SourceAmerican Academy of Ophthalmology·DateNov 12, 2012

Robots enable scar-free hysterectomies for some women

A new approach to hysterectomy allows for essentially scar-free surgery using robotic arms in a thin incision. The technique provides improved access for surgeons, enabling clearer views of anatomy and reducing the risk of injury to vital structures.

SourceMedical College of Georgia at Augusta University·JournalJournal of Minimal Access Surgery·DateNov 12, 2012

Bringing measuring accuracy to radical treatment

Researchers at Ghent University have developed a simplified model to measure the absolute density of OH radicals in plasma, improving the accuracy of radical treatment for medical applications. This breakthrough could stimulate tissue regeneration and induce targeted antiseptic effects without harming neighboring tissues.

SourceSpringer·JournalThe European Physical Journal D·DateNov 12, 2012

Job stress and mental health problems contribute to higher rates of physician suicide

A new study from the University of Michigan found that physicians who commit suicide often have known mental health problems but fail to seek treatment due to stigma and lack of confidentiality. The study highlights the need for greater effort to address job stress, under-diagnosis, and treatment of depression among physicians.

SourceMichigan Medicine - University of Michigan·JournalGeneral Hospital Psychiatry·DateNov 12, 2012
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.

Surveying Earth's interior with atomic clocks

Scientists propose using ultraprecise atomic clocks to directly measure the Earth's true physical form, the geoid, which is currently determined indirectly through satellite tracking. This method has the potential to map the interior of the Earth to great depths, enabling more accurate exploration and discovery of subsurface structures.

SourceUniversity of Zurich·JournalGeophysical Journal International·DateNov 12, 2012

November/December 2012 Annals of Family Medicine tip sheet

The US will need 52,000 additional primary care physicians by 2025 due to population growth and aging, with a projected 25% increase in the workforce. Researchers also examine the benefits of starting prostate cancer screening at age 40 versus 50 and argue that guidelines should be evidence-based to prioritize proven services.

SourceAmerican Academy of Family Physicians·JournalThe Annals of Family Medicine·DateNov 12, 2012
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.

Cilia guide neuronal migration in developing brain

A new study reveals that cilia play a dynamic role in guiding neuronal migration during brain development. In mice with deleted Arl13b gene, interneurons fail to migrate properly due to abnormal cilia function.

SourceEmory Health Sciences·JournalDevelopmental Cell·DateNov 12, 2012

Snap judgments during speed dating

A study published in the Journal of Neuroscience identified two brain regions involved in making rapid judgments about potential partners. The paracingulate cortex and rostromedial prefrontal cortex are active when people consider physical attractiveness and individual compatibility, respectively.

SourceCalifornia Institute of Technology·DateNov 12, 2012

Southampton to help develop new crops for water-stressed environments

The University of Southampton is leading a €11.6 million EU-funded research project to develop new crops that can withstand drought, addressing the impact of climate change on crop productivity. The project aims to characterise DNA variation in under-utilised crops and harness this knowledge to produce better crops.

SourceUniversity of Southampton·DateNov 12, 2012

Scientists unravel the mystery of marine methane oxidation

A team of researchers has made a groundbreaking discovery that challenges long-standing theories on marine methane oxidation. They found that a single microorganism, an archaeon, can perform both methane oxidation and sulfate respiration without the need for bacterial collaboration.

SourceMax-Planck-Gesellschaft·JournalNature·DateNov 12, 2012

Black patients with kidney cancer have poorer survival than whites

A new study found that black patients with kidney cancer have a survival disadvantage compared to white patients, even when diagnosed at early stages or receiving less aggressive treatment. The study analyzed nearly 40,000 renal cell carcinoma patients and confirmed poorer survival rates for blacks.

SourceWiley·JournalCancer·DateNov 12, 2012
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

$50 million to speed discoveries for patients

The ICTS will focus on translating genetic and genomic research into patient care, developing new therapeutics, and disseminating research findings. The grant supports Washington University's strengths in genetic and genomic research and its efforts to advance clinical and translational research.

SourceWashU Medicine·DateNov 12, 2012

Awareness could eliminate inequalities in cancer diagnoses

A new study by the University of Cambridge reveals substantial inequalities in cancer stage at diagnosis, which can impact survival. The research highlights the importance of awareness campaigns to improve early diagnosis for specific patient groups, including those living in poorer neighborhoods or with different tumour sub-types.

SourceUniversity of Cambridge·JournalAnnals of Oncology·DateNov 12, 2012
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Good quality of life for couples who adopt

A study from the University of Gothenburg found that quality of life is highest among couples who adopted, followed by those with children through IVF. The study suggests considering adoption as a fertility option for couples seeking medical help.

SourceUniversity of Gothenburg·JournalActa Obstetricia Et Gynecologica Scandinavica·DateNov 12, 2012

On the hunt for rare cancer cells

Researchers at MIT developed a microfluidic device that captures circulating tumor cells using DNA 'tentacles' inspired by jellyfish. The device increases flow rates 10 times higher than existing ones, enabling rapid processing of blood samples and potential monitoring of cancer patients.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateNov 12, 2012
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.

'Social environmental factors' affect rehospitalization risk in home healthcare patients

A study of 1,268 elderly patients receiving home healthcare found that social environmental factors, particularly informal care provided by family members or caregivers, contribute to the risk of repeated hospital admissions. Patients with good social support are more likely to maintain their functional ability and remain at home.

SourceWolters Kluwer Health·JournalAdvances in Nursing Science·DateNov 12, 2012

At least 6 major earthquakes on the Alhama de Murcia fault in the last 300,000 years

Researchers have discovered six major earthquakes above 7 magnitude on the Alhama de Murcia fault, revealing 'convincing evidence' of higher maximum earthquake magnitudes than previously thought. The study provides a detailed paleoseismic record of the fault's activity over hundreds of thousands of years.

SourceSpanish Foundation for Science and Technology·JournalGeological Society of America Bulletin·DateNov 12, 2012
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.

'Strain tuning' reveals promise in nanoscale manufacturing

Researchers at Oak Ridge National Laboratory have made significant progress in fabricating advanced nanomaterials with improved properties. The controlled assembly of nanostructures enables the creation of self-assembled films with novel and unprecedented properties suitable for various electrical and electronic applications.

SourceDOE/Oak Ridge National Laboratory·JournalAdvanced Functional Materials·DateNov 12, 2012

Saving lives could start at shift change: A simple way to improve hospital handoff conversations

A study led by the University of Michigan found that doctors tend to spend excessive time on early cases and rush at the end of the list, leading to miscommunication and preventable medical errors. Researchers suggest prioritizing handoff conversations for the sickest patients first to improve patient care and reduce errors.

SourceUniversity of Michigan·JournalArchives of Internal Medicine·DateNov 12, 2012

The aftermath of calculator use in college classrooms

A study by Pitt researcher Samuel King found that students relying on calculators to solve mathematical problems often lack a deeper understanding of the underlying concepts. The research suggests that using calculators as a substitute for mathematical thinking can lead to surface-level learning, rather than true comprehension.

SourceUniversity of Pittsburgh·JournalBritish Educational Research Journal·DateNov 12, 2012

Babies rely on words to 'decode' underlying intentions of others

A new Northwestern University study reveals that introducing a novel word for an impending event enhances infants' tendency to imitate unconventional behavior. Infants as young as 14 months old coordinate their insights about human behavior and language to discover which actions are worth imitating.

SourceNorthwestern University·JournalDevelopmental Psychobiology·DateNov 12, 2012

Divorce costs thousands of women health insurance coverage

A University of Michigan study found that 115,000 women lose their private health insurance every year after divorce, leading to depression for more than two years. Women in moderate-income families face the greatest loss of insurance coverage, while full-time work and education can serve as buffers against losing health insurance.

SourceUniversity of Michigan·JournalJournal of Health and Social Behavior·DateNov 12, 2012
Fluke 87V Industrial Digital Multimeter

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

Childhood obesity more likely to affect children in poorer neighborhoods

A new study by Rice University sociologists reveals that children living in poorer neighborhoods are nearly 30% more likely to be obese than those in more affluent areas. The research found that neighborhood poverty and lower education levels are associated with increased child obesity risk, while a higher proportion of foreign-born re...

SourceRice University·JournalSocial Science & Medicine·DateNov 12, 2012

Survey of ER docs and pediatricians highlights need for training, tools to manage kids' concussions

A study of ER docs and pediatricians found a need for concussion-specific training and infrastructure to support optimal patient care. The Children's Hospital of Philadelphia created a new 'medical home' model for managing pediatric concussions, incorporating standardized clinical decision support tools and patient education.

SourceChildren's Hospital of Philadelphia·JournalPEDIATRICS·DateNov 12, 2012

Smoking parents often expose children to tobacco smoke in their cars

A majority of smoking parents admitted exposing their children to tobacco smoke in their cars, highlighting the need for stricter smoke-free policies for families. Pediatricians should counsel parents on creating a no-smoking policy in the car to reduce children's exposure to tobacco smoke.

SourceMassachusetts General Hospital·JournalPEDIATRICS·DateNov 12, 2012

Study shows how chronic inflammation can cause cancer

Researchers at Ohio State University Wexner Medical Center discovered that high levels of interleukin-15 can cause large granular lymphocytic leukemia, a rare and usually fatal form of cancer. The study led to the development of a treatment with no discernible side effects.

SourceOhio State University Wexner Medical Center·JournalCancer Cell·DateNov 12, 2012
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

Plan to turn farm waste into paper earns students $15,000

Students Sangkyun Cho, Jay Hyug Choi and Victor Hyun Oh developed a plan to convert farm waste into paper for under-equipped schools in developing nations. Their design uses no electricity and can be built by impoverished villagers, addressing the lack of basic supplies like paper.

SourceJohns Hopkins University·DateNov 12, 2012

Erosion has a point -- and an edge, NYU researchers find

Researchers designed an experiment to replicate natural erosion, finding that water flow acts as a shearing force against objects, shaping them into unique forms. The study's findings suggest that water works as a sculptor to naturally mold materials into new shapes.

SourceNew York University·JournalProceedings of the National Academy of Sciences·DateNov 12, 2012

Housing quality associated with children's burn injury risk

A new study by Johns Hopkins researchers found that homes with more housing quality code violations were less likely to have a working smoke alarm and safe hot water temperatures. The study, which surveyed low-income families in Baltimore, highlights the importance of improving home safety measures to reduce burn injuries among children.

SourceJohns Hopkins Bloomberg School of Public Health·JournalPEDIATRICS·DateNov 12, 2012

Ultrasound gel and infections: Researchers propose guidelines to reduce risk

The Society for Healthcare Epidemiology of America proposes guidelines to minimize the risk of infection from contaminated ultrasound gel. The guidelines suggest using sterile, single-dose ultrasound gel in invasive procedures involving non-intact skin or fresh surgical wounds.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateNov 12, 2012
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

JCI early table of contents for Nov. 12, 2012

Researchers investigated intravaginal immunization and its potential to enhance local immune systems against sexually-transmitted diseases. Additionally, a study on HERV-targeted immune responses found that targeting cellular immune responses could eliminate HIV-infected cells.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateNov 12, 2012

Children's headaches rarely indicate a need for eyeglasses

A new study refutes the notion that frequent headaches in children are often caused by vision or eye problems. In fact, researchers found no significant correlation between headaches and the need for vision correction. Most children's headaches improved on their own over time, regardless of whether they received new glasses.

SourceAmerican Academy of Ophthalmology·DateNov 12, 2012

Helmets save lives of skiers and snowboarders

A new study published in the Journal of Trauma and Acute Care Surgery found that wearing helmets significantly reduces head injuries and saves lives among skiers and snowboarders. The research suggests that helmet use does not increase the risk of injury, contradicting long-held myths.

SourceJohns Hopkins Medicine·JournalJournal of Trauma and Acute Care Surgery·DateNov 12, 2012
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

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.

CERN collider to become the world's fastest stopwatch?

Scientists at Vienna University of Technology propose a new measuring method using the forward calorimeter at CERN, enabling the creation of the world's most precise stopwatch for light pulses. This could revolutionize quark-gluon plasma physics and open up new avenues for nuclear research.

SourceVienna University of Technology·JournalPhysical Review Letters·DateNov 12, 2012

Persistence or extinction: Through a mathematical lens

A mathematical model analyzes the impact of disease, animal migrations, and Allee effects on biodiversity. The study finds that population extinction is possible even when a healthy population is subject to small perturbations, highlighting the importance of considering global survival in ecosystem resilience.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Applied Mathematics·DateNov 12, 2012
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.

Call for global monitoring of infectious diseases in dogs and cats

A new study calls for a global system to monitor infectious diseases in companion dogs and cats, which can transmit zoonotic diseases to humans. The World Small Animal Veterinary Association recommends a coordinated global disease monitoring system for veterinarians working with small companion animals.

SourceUniversity of Bristol·JournalEmerging Infectious Diseases·DateNov 12, 2012

National study shows protective eyewear reduces eye, head, and facial injuries

A national study found that high school field hockey players competing in states with mandated protective eyewear have significantly lower rates of head, eye, and facial injuries compared to those without mandates. Protective eyewear was shown to virtually eliminate injuries to the eye orbits, eyeballs, eyebrows, and eyelids.

SourceLifespan·JournalPEDIATRICS·DateNov 12, 2012

Enterprise Research Centre launches

The UK has launched a new Enterprise Research Centre to study factors affecting business investment, performance and growth in small and medium-sized enterprises (SMEs). The centre will provide evidence for policymakers and SME managers to make informed decisions for growth.

SourceEconomic & Social Research Council·DateNov 12, 2012

Study offers new tool for incorporating water impacts into policy decisions

A new framework developed by researchers at the University of Minnesota provides a tool for assessing and valuing the services clean water provides, including recreation, beauty, navigation, and hydropower. The framework can be applied to on-the-ground decisions around water issues, yielding a more accurate picture of costs and benefits.

SourceUniversity of Minnesota·JournalProceedings of the National Academy of Sciences·DateNov 12, 2012
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.

Catch and release

A novel microchip device, inspired by sea creatures' long appendages, can detect and capture rare cancer cells from whole blood patient samples. The device's three-dimensional DNA network targets specific molecules, allowing for efficient cell capture and high purity.

SourceBrigham and Women's Hospital·JournalProceedings of the National Academy of Sciences·DateNov 12, 2012

Head injury + pesticide exposure = Triple the risk of Parkinson's disease

A new study published by the American Academy of Neurology reveals a significant link between head injuries and pesticide exposure to an increased risk of Parkinson's disease. People with Parkinson's were found to be three times more likely to have had a head injury and exposure to paraquat, a common herbicide.

SourceAmerican Academy of Neurology·JournalNeurology·DateNov 12, 2012

Psychiatric wait times in emergency departments

Patients with mental illness experience shorter waits for assessment and admission during crowded periods, but still face delays compared to other patients. The presence of psychiatric teams may help identify higher priority cases.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateNov 12, 2012

Patients shy away from asking healthcare workers to wash hands

A study found that most patients believe healthcare workers should wash their hands before and after patient care, but only a minority feel comfortable asking them to do so. The study suggests that patient empowerment is key to improving hand hygiene behaviors among healthcare workers.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateNov 12, 2012

Annals of Internal Medicine tip sheet for Nov. 13, 2012

Researchers found that prophylactic use of probiotics significantly reduces the incidence of Clostridium difficile-associated diarrhea (CDAD) in adults and children taking antibiotics. In contrast, epidural corticosteroid injections offer only short-term relief from sciatica pain and disability for patients with this condition.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 12, 2012
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

News from Annals of Internal Medicine

A hospital in Roanoke, VA established a treatment protocol for dozens of patients with suspected fungal meningitis, using IV voriconazole and amphotericin-B. The clinical course and long-term neurological consequences are still being studied.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateNov 12, 2012

New cause of thyroid hormone deficiency discovered

Researchers at McGill University have identified a new hereditary form of hypothyroidism caused by mutations in the immunoglobulin superfamily, member 1 (IGSF1) gene. This sex-biased condition affects males more frequently than females and has significant implications for thyroid hormone deficiency diagnosis and treatment.

SourceMcGill University·JournalNature Genetics·DateNov 12, 2012