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Science News Archive November 2013


Page 28 of 30

Scientists use light to uncover the cause of sickle cell disease

Researchers used light-scattering techniques to study the detailed thermodynamics of hemoglobin fibers in sickle cell disease. They found that hemoglobin molecules associate more easily in high temperatures and concentrated solutions, leading to stronger bonds between fibers.

Kids who sleep more, may eat less, new study finds

A new study published in Pediatrics found that children who slept more for a week consumed an average of 134 fewer calories per day and weighed half a pound less compared to those who slept less. The study suggests that enhancing school-age children's sleep at night could have important implications for preventing and treating obesity.

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.

Eating disorders more common in males than realized

A study published in JAMA Pediatrics found that 17.9% of adolescent boys in the US are extremely concerned about their weight and physique, leading to increased risk of drug use and binge drinking. Boys focused on muscularity were more likely to engage in unhealthy behaviors.

Transgender controversies can lead to 'gender panic,' study finds

A study examines how mainstream news coverage of transgender-related news and policy issues reflects entrenched views about gender, particularly the notion that women are weak and vulnerable. The authors found that perceived threats to women's spaces spur panic, but that clear policies can calm down such reactions.

Apple iPhone 17 Pro

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

Earlier onset of puberty in girls linked to obesity

A new study found that obesity is the largest predictor of earlier onset puberty in girls, with white girls experiencing breast development at a median age of 9.7 years. The study suggests that greater obesity may be the cause of this phenomenon, highlighting potential psychosocial and biologic outcomes for affected girls.

Researchers gain new insights into brain neuronal networks

A paper proposes a novel understanding of brain architecture using a network representation of connections within the primate cortex. The researchers describe the cortex as a network of connections with a bow tie structure, characterized by a dense core connecting to feed-forward and feedback pathways. This arrangement is found in self...

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.

Dolphin genetic study provides revelations

A recent study published in the Journal of Heredity has identified two distinct populations of bottlenose dolphins living in the Indian River Lagoon, separated by a north-south geographic area. The research also found genetic differences between these populations and those living in other areas, highlighting the importance of habitat a...

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.

Teens in child welfare system show higher drug abuse rate

A study found that teenagers in the child welfare system have a higher risk of abusing marijuana, inhalants, and other drugs compared to their counterparts outside the system. Parental involvement is a key factor in reducing this risk, with youth who feel supported by parents being less likely to engage in high-risk behaviors.

Researchers warn of the 'myths' of global medical tourism

A team of researchers challenges widely-held assumptions about the growth of medical tourism, citing a lack of credible data and regional factors. They argue that historical flows between countries, cultural relations, and geo-political factors drive medical tourism, rather than global market opportunities.

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.

No major complications in most teens undergoing weight-loss bariatric surgery

Severely obese teenagers who underwent weight-loss surgery experienced minimal complications, with no major complications or deaths reported during the initial hospitalization period. The study included 242 teens and found that only 8% experienced reoperation and 15% had minor complications like readmission for dehydration.

The Franklin Institute honors 2 Carnegie Mellon professors

Edmund Clarke receives Bower Prize for his work on Model Checking, while Mark Kryder is awarded Benjamin Franklin Medal for Perpendicular Magnetic Recording. Both professors have made significant contributions to the field of information technology.

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.

Is it safe to drive with my arm in a cast?

Patients should never drive if taking narcotic pain medication, as it impairs cognitive judgment and reaction time. Additionally, using one arm can significantly limit safe driving abilities due to impaired coordination and control of the vehicle.

Fluke 87V Industrial Digital Multimeter

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

Scientists study 'fishy' behavior to solve an animal locomotion mystery

A research team led by Johns Hopkins engineers discovered that animals use opposing forces in their movements to increase both stability and maneuverability. This biomimetic approach is found in fish, hummingbirds, and bees, and could simplify designs for small robots that fly, swim, or move on mechanical legs.

Brain aging is conclusively linked to genes

Researchers have identified genes associated with brain aging, revealing a heritable basis for neurocognitive deterioration and decreased white matter integrity. The study used large pedigrees of Mexican Americans to disentangle genetic from non-genetic influences on aging.

$100 million gift launches Sanford Stem Cell Clinical Center

The center will integrate operations at four locations, including the UC San Diego Jacobs Medical Center and the Sanford Consortium for Regenerative Medicine. It aims to translate discoveries into therapies that can improve and save lives, with a focus on treating cancer, Lou Gehrig's disease, and spinal cord injury.

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.

Learning and memory: How neurons activate PP1

Researchers reveal how neurons regulate PP1 protein through neurotransmitter NMDA, allowing PP1 to promote synaptic remodeling. A regulatory protein called inhibitor-2 also helps promote PP1 activity in neurons.

Leicester scientists map structure of key complex in the immune system

Researchers have mapped the structure of complement component C1, a protein responsible for spotting foreign agents and triggering the immune response. The study reveals how the complex is assembled from its constituent proteins, shedding light on the immune system's prevention of disease and potential therapeutic applications.

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.

We'll rise or fall on the quality of our soil

The productivity of many lands has been dramatically reduced due to soil erosion, salinity accumulation, and nutrient depletion. A sustainable approach to agriculture is needed to maintain soil fertility and address climate change and biodiversity loss.

Positive results for non surgical heart valve replacement

Researchers announced positive trial results for an artificial aortic heart valve that does not require open-heart surgery. The device showed high survival rates, low stroke risk, and significant improvements in patients' quality of life.

Brain structure in post-traumatic stress disorder

Researchers found chronic PTSD patients have gray matter structural damage in the prefrontal lobe, occipital lobe, and parietal lobe. Improved PTSD symptoms are associated with reduced but not recovered gray matter structural damage.

Study looks at safety, effectiveness of generics for treating depression

Researchers at Washington University School of Medicine are studying the quality and effectiveness of generic drugs for treating depression. They aim to determine if generic versions of bupropion HCl ER tablets work as well as brand-name Wellbutrin XL in treating depression, with a focus on safety and potential side effects.

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.

Embargoed news from Nov. 5, 2013 Annals of Internal Medicine tip sheet

A recent study published in Annals of Internal Medicine found that women who adhered to a Mediterranean-type diet in midlife had greater physical and mental function in old age. Researchers also developed a scoring system to identify low-risk patients for strep throat, which could potentially save hundreds of thousands of doctor visits...

Gravity and the robot satellite attitude problem

Researchers propose a new method for robots to capture malfunctioning satellites in space. By mimicking the way animals track and capture prey, the team developed a bio-inspired solution that reduces damage and minimizes disruption to the spacecraft. This technology aims to revolutionize space maintenance and rescue operations.

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.

Snakes control blood flow to aid vision

Researchers discovered that snakes can optimize their vision by controlling blood flow in their eyes when perceiving threats. The coachwhip snake's visual blood flow patterns change depending on its environment, allowing for improved visual clarity in times of need.

NASA video shows birth and death of Tropical Storm Sonia

Tropical Storm Sonia formed on Nov. 1 and made landfall in western Mexico by Nov. 4, with NASA capturing its brief life in a 36-second animation. The storm's maximum sustained winds reached 45 mph, but it weakened as it moved over rugged terrain.

Elusive bay cat caught on camera

Scientists from ZSL and Imperial College London capture images of five wild cat species, including the elusive bay cat, in a logged area of forest. The study reveals that large carnivores can survive in commercially logged forests, challenging conservation assumptions.

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.

1 dose of HPV vaccine may be enough to prevent cervical cancer

A recent study published in Cancer Prevention Research found that women vaccinated with one dose of the human papillomavirus (HPV) vaccine had stable antibodies against HPV viruses in their blood for up to four years. The results challenge previous dogma on protein subunit vaccines requiring multiple doses for long-lived responses.

Race and romance online

A study of 126,134 users on OkCupid.com found that racial barriers to romance are not insurmountable online. While people tend to self-segregate by race, they are more likely to reciprocate a cross-race overture and initiate interracial contact in the future.

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.

New tool may unveil inhabitable worlds

SPIRou, a near-infrared spectropolarimeter and high-precision velocimeter, will detect habitable Earth twins orbiting nearby red dwarf stars and study the formation of Sun-like stars and their planets. The instrument's advanced technology will reveal the existence of liquid water on planetary surfaces.

The nitrogen puzzle in the oceans

A team of scientists has revealed the details of a microbial process regulating the global nitrogen budget in the oceans. They found that anammox, a process converting fixed nitrogen to N2, affects primary productivity and isocyan signature patterns in oxygen minimum zones.