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Science News Archive January 2015


Page 19 of 28

First contracting human muscle grown in laboratory

Researchers at Duke University have successfully grown human skeletal muscle that contracts and responds like native tissue, enabling the testing of new drugs and study of diseases in functioning human muscle outside the body. The lab-grown tissue can also mimic clinical responses to various drugs.

Animal contraceptive vaccine could reduce euthanasia in shelters

A new vaccine technology aims to provide a nonsurgical method for spaying and neutering dogs and cats, potentially reducing the number of animals in shelters and preventing euthanizations. The vaccine targets gonadotropin-releasing hormone, crucial for reproduction in mammals.

Climate and friends influence young corals choice of real estate

Researchers found that cooler temperatures and presence of symbiotic algae influence coral larvae's choice of settlement location. The study suggests a link between crustose coralline algae and symbionts, which may change how corals select their life-long position on the reef.

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.

Blood test for brain injury may not be feasible

A new study in mice suggests that a blood-based biomarker for traumatic brain injury (TBI) may not be effective due to the complex glymphatic system. The researchers found that treatments and clinical approaches can disrupt waste removal, leading to unreliable protein levels in the blood.

Study sheds light on chemicals that insects use to communicate and survive

Researchers at UC Riverside devised a method to isolate hydrocarbon molecules used by insects for communication and differentiation. The study found that nearly all insects produce the R form of these chemicals, paving the way for understanding their functions and potential applications in controlling pest species.

Sleeping after learning is important for infants' long-term memory

Infants who slept for at least half an hour within four hours of learning reproduced significantly more actions than those who did not sleep. Timely sleep facilitates declarative memory consolidation in infants, according to a study by Ruhr-University Bochum researchers.

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.

The challenges of providing obstetric care during an Ebola epidemic

Healthcare workers face difficulties in differentiating between obstetric emergencies and suspected Ebola cases, while limited evidence exists on asymptomatic pregnant women. The article highlights the need for continual assessment of minimising risk to healthcare workers while providing lifesaving care.

Rescuing farmland after a flood

A University of Illinois study found that levee breaches can cause permanent loss of agricultural productivity, with some fields losing up to 30% of their capacity. Implementing a soil conservation plan and updating survey maps could help restore land use after flooding.

Tumor micro-environment is a rough neighborhood for nanoparticle cancer drugs

Researchers suggest that the tumor microenvironment could play a significant role in cancer treatment and delivery of nanoparticle-based drugs. They found varying levels of drug delivery between two triple-negative breast cancer tumors, highlighting the importance of personalized medicine and better profiling of tumors.

Pivotal data for T2Candida and T2Dx published in Clinical Infectious Diseases

A study published in Clinical Infectious Diseases demonstrated the pivotal data for T2Candida and T2Dx, detecting Candida species with 91.1% sensitivity and 99.4% specificity in 3-5 hours without blood culture. This technology has the potential to reduce costs, length of stay, and mortality rates associated with Candida infections.

Community-wide CVD prevention programs linked with improved health outcomes

A comprehensive cardiovascular risk reduction program in Franklin County, Maine, demonstrated significant improvements in hypertension control, cholesterol management, and smoking cessation rates. The program resulted in substantial reductions in hospitalization and death rates, as well as $5,450,362 in annual savings in hospital charges.

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.

This week from AGU: Thunderstorms and ozone, urban air pollution

A new study in Geophysical Research Letters finds that large thunderstorms can transport significant amounts of ozone from the stratosphere to the troposphere. Decades of mitigation efforts in megacities like Los Angeles demonstrate improvements in air quality, highlighting the need for continued action against urban air pollution.

Three new Begonia plant species from Brazil

Scientists have discovered three new species of the Begonia genus, native to Brazil and adding to the existing 1,500 species. The rare species were found in confined territories, making their discovery challenging.

Apple iPhone 17 Pro

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

NASA sees major Tropical Cyclone Bansi north of Mauritius

Tropical Cyclone Bansi is a powerful Category 4 hurricane with sustained winds of 149.6 mph, forecast to intensify into a Category 5 storm before weakening. The cyclone is moving northeast at 4.6 mph and expected to pass north of Mauritius.

'Gold rush' threatens tropical forests in South America

A recent study found that gold mining has led to significant deforestation in tropical forests of South America, resulting in the loss of around 1680 km2 of forest between 2001 and 2013. The research highlights the growing environmental impact of gold mining in biologically diverse regions.

Grant funds effort to keep South African men in HIV care

A new $1.6-million grant will support a project aimed at improving coordination between health systems and community services to retain more men in HIV care. The research focuses on the specific challenges faced by South African men, including lower testing rates and adherence to treatment.

Meta Quest 3 512GB

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

Decoding the gravitational evolution of dark matter halos

Researchers at Kavli IPMU revealed that considering environmental effects is crucial for explaining dark matter halo distribution and evolution around galaxies. They confirmed the importance of higher-order nonlocal terms in simulations, allowing for more accurate predictions of dark matter halos' distribution.

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.

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.

Napping helps infants' memory development

A new study from the University of Sheffield found that daytime naps of 30 minutes or more help infants retain and remember new behaviors. Infants who did not nap showed no evidence of remembering the new information and behavior.

Researchers from MIPT predict properties of surface

Researchers from MIPT use the USPEX method to predict the structure and properties of rutile's surface. This resolves existing discrepancies between empirical and theoretical data, paving the way for understanding chemical reactions on the catalyst.

Stalking risk increases among college students

A study by Sam Houston State University's Crime Victims' Institute found that college students are at higher risk for stalking than the general public. Only one-quarter of college victims reported stalking incidents to police, compared to 32 percent of the general population.

No gain if unfair

A study found that humans tend to turn down sure rewards if they derive from an unfair distribution of resources, regardless of whether the individual themselves or others are affected. Brain imaging revealed differing brain circuits in these two conditions.

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.

Good life satisfaction has beneficial effects on bone health

A recent study published in Psychosomatic Medicine found that women with good life satisfaction had higher bone density and lower rates of osteoporosis compared to those with poor life satisfaction. Life satisfaction was positively associated with bone health, even after controlling for other risk factors.

Feeling cold is contagious, scientists find

Research at University of Sussex finds humans are susceptible to 'temperature contagion', experiencing a drop in body temperature when watching someone else shiver. This phenomenon may aid empathy and cooperation in complex communities.

Long working hours linked to increased risky alcohol use

A new study published in The BMJ found that employees who work more than 48 hours per week are more likely to engage in risky alcohol consumption. The study analyzed data from 333,693 people across 14 countries and found a significant association between long working hours and increased risk of higher alcohol use.

Development of psychosis: Gray matter loss and the inflamed brain

A new study finds that gray matter loss in the brain is a precursor to psychosis, with increased inflammation accelerating this process. Researchers analyzed brain scans of young adults at clinical high risk for psychosis and healthy controls, revealing a significant correlation between proinflammatory cytokines and gray matter thinning.

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.

Sizing up giants under the sea

A research team analyzed body size data for 25 marine species, including whales, sharks, and squids, to correct inaccuracies and understand the challenges of measurement. The study found that some species exhibit significant size variation within a single species.

Detection thresholds drop with low noise quantum cascade laser driver

The QCL LAB family of instruments features low noise drive electronics, allowing for stable center wavelength and narrow linewidth. Models are available with output currents up to 2000 mA, making them suitable for various applications such as remote detection of explosive materials and medical diagnosis.

Photonic crystal nanolaser biosensor simplifies DNA detection

A team of researchers created a photonic crystal nanolaser biosensor that can detect DNA and biomolecules based on wavelength shift and laser emission intensity changes. This method is simpler and potentially less expensive than existing techniques, making it a promising tool for disease diagnosis.

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.

Understanding the personalities of bacteria

Research by Professor Peter Young and his team reveals that bacterial strains are unique, with different genes and capabilities, similar to human individuals having unique genetic makeup. This study sheds light on the importance of understanding bacterial communities and their functioning through metagenomics.

A breakthrough approach to addressing the causes of biodiversity loss

The IPBES conceptual framework offers a new approach to understanding biodiversity loss by incorporating traditional knowledge and social sciences. The framework is built on six main elements: nature, human benefits, anthropogenic assets, indirect drivers of change, direct drivers of change, and good quality of life.

Link between stress and infertility can be broken

Researchers discovered that knocking down a single gene can prevent stress-induced female infertility and miscarriage in rats. The study found that this genetic silencing restored reproductive success to levels comparable to non-stress controls.

Bisexual women have worse mental health than lesbians in the UK

A new research published in the Journal of Public Health found that bisexual women are more likely to self-harm and experience eating problems compared to lesbians. Bisexual women reported 64% higher rates of eating problems and 37% higher rates of deliberate self-harm than lesbians.

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.

Zinc oxide materials tapped for tiny energy harvesting devices

Researchers at KAIST have developed zinc oxide-based micro energy harvesting devices that can harness mechanical energy to generate electricity. The devices, known as nanogenerators, were found to be more efficient when insulating layers such as aluminum nitride were inserted into the zinc oxide material.

Men want commitment when women are scarce

A study among the Makushi people in Guyana reveals that men are more likely to pursue long-term relationships when women are in short supply. The researchers found that when women are abundant, men tend to seek multiple short-term partners, but when they are scarce, men value and attempt to maintain a single partner.

Crops can do their own weed control

Weed control in conventional farming methods has a negative impact on the environment. Research from the University of Copenhagen reveals that crops like corn, grains, and beans can suppress weed growth when sown in tighter grid patterns. This results in up to 72% reduction in weed biomass and a 45% increase in grain yields.

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.

Study: Eat school lunch after recess

A Brigham Young University study found that switching recess before lunch increases fruit and vegetable consumption in children by 54%. This simple, no-cost trick has the potential to improve long-term health effects and make school meal programs more successful.

Dinosaurs wiped out rapidly in Europe 66 million years ago

A new study reveals that dinosaurs remained diverse in European ecosystems until the end of the Cretaceous period. Fossils from Spain, France, and other countries show that meat-eating and plant-eating species were present and thriving during the final few hundred thousand years before the asteroid impact.

Use of surgical procedure to facilitate child birth declines

A study published in JAMA found that US episiotomy rates decreased significantly between 2006 and 2012, from 17.3% to 11.6%, with notable variations based on insurance coverage and hospital characteristics. The decline was attributed to the restrictive use of episiotomy due to its risks and unclear benefits.

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.

Estimated social cost of climate change not accurate, Stanford scientists say

A new study suggests that the social cost of carbon is not $37 per ton as previously estimated, but $220 per ton. This higher estimate justifies rapid and early mitigation efforts to limit global temperature rise to 2 degrees Celsius. The research also explores the impact on developing countries, suggesting that delaying emissions redu...