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Science News Archive April 2019


Page 13 of 44

Researchers create artificial mother-of-pearl using bacteria

Scientists have developed an inexpensive and environmentally friendly way to produce artificial nacre, a tough material found in mother-of-pearl, using bacteria. The novel material has the same mechanical properties as natural nacre and can be bendable, making it suitable for medical applications and construction.

Biologists design new molecules to help stall lung cancer

Researchers have engineered molecules that restrict access to heme, an oxygen-binding molecule, to slow the growth of lung cancer tumors in mice. By starving cancer cells of this essential molecule, the new approach may provide a potential new path forward in treating non-small cell lung cancer.

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.

Strongly agree: It's time to test the Likert scale

A University at Buffalo researcher and his team tested the impact of response options on the reliability of psychological measures, finding that six options appears to be the magic number for optimal accuracy. They argue that too few or too many options can lead to inaccurate results due to human cognitive limitations.

New sensor detects rare metals used in smartphones

A new protein-based sensor can detect tiny amounts of lanthanides, a crucial component of smartphone screens and electronics. The sensor uses a shape change to bind to the metal, allowing for rapid and inexpensive detection at the location of sampling.

How much time do Americans spend sitting?

The study found that Americans spent more time sitting, with 62% of children, adolescents, and adults watching TV or videos for at least 2 hours a day in 2015-2016. The proportion of people using computers during leisure time increased across all age groups from 43% to 56%.

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.

TOS president-elect co-authors study on genetic test for obesity

A new genetic test, known as the Obesity Genome-wide Polygenic Score (GPS), has been developed to predict an individual's risk of developing severe obesity. The test uses a genetic score based on over 2 million variations in a person's genetic code and shows high predictive power.

Apple iPhone 17 Pro

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

Pre-op daily life disability may predict poor outcome after hip replacement

A new study published in Orthopedics found that pre-operative daily life disability is a significant predictor of poor outcomes after total hip replacement surgery. Patients who cannot perform daily activities independently before surgery are more likely to experience surgical complications, longer hospital stays, and higher rates of r...

How the body protects itself from type 2 diabetes

Scientists at DZNE and University of Bonn found that regulatory T cells use the protein HPGD to suppress inflammation in adipose tissue, preventing insulin resistance and type 2 diabetes. HPGD also showed a correlation with reduced levels in patients with diabetes.

Celestron NexStar 8SE Computerized Telescope

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

Simple and fast method for radiolabelling antibodies against breast cancer

Researchers at the University of Zurich have developed a simple and fast method for radiolabelling antibodies against breast cancer using UV light. The new procedure allows for the production of radioactive drugs and diagnostic agents in under 20 minutes, making it a game-changer for PET imaging and targeted radioimmunotherapy.

KAIST unveils the hidden control architecture of brain networks

The study identifies a distinct control architecture in brain networks, characterized by a distributed and overlapping control system that enables robustness against targeted attacks and high efficiency in switching between network states. This finding has broad implications for cognitive neuroscience and clinical applications.

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.

How light triggers brain activity

The discovery of channelrhodopsin-2 reveals two parallel paths in the activation of the ion channel by light, allowing for optimized applications in optogenetics. This understanding could lead to treatments for blind individuals and patients with agitated paralysis in Parkinson's disease.

How fish brain cells react to Alzheimer's disease

Scientists discovered eight distinct cell populations in zebrafish brains that proliferate in response to amyloid-β aggregates, a hallmark of Alzheimer's disease. These populations may serve as potential targets for inducing regeneration and developing new treatments for humans.

Scientists propose new theory on Alzheimer's, amyloid connection

Researchers discover that disrupting the interaction between amyloid precursor protein and cholesterol leads to neurodegeneration, swelling of synapses, and fragmentation of axons. This finding suggests a new theory on Alzheimer's disease, where amyloid precursor protein may be an accomplice to cholesterol deficiency.

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.

New chemical tool to block endocytosis in plants identified

A new chemical tool has been identified to block endocytosis in plants, a process essential for nutrient uptake and cellular signaling. The compound, ES9-17, was developed through an international collaboration and retains the ability to bind clathrin, a protein involved in endocytosis.

Devil rays may have unknown birthing zone

A Duke University study suggests that giant devil rays may have an unknown birthing zone in nearby waters, which could be a good news for conservation efforts but requires action to limit fishing during birthing months.

Cannabis addiction influenced by genetic makeup

A new UCL-led study investigates three genetic markers that influence cannabis addiction. Researchers found differences in cognitive mechanisms and identified a specific gene associated with increased craving and attraction to cannabis-related imagery.

Feces transplantation: Effective treatment with economic benefits

A new study shows that feces transplantation for Clostridium difficile colitis saves at least $1.2 million annually per 50 patients, reducing hospital costs from 37 to 20 days per year. The treatment provides significant cost savings without compromising patient care.

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.

Catalyst renders nerve agents harmless

Researchers at Brookhaven National Laboratory have developed a catalyst that efficiently decomposes nerve agents like sarin, eliminating their harmful effects. The multimodal approach used in the study identifies the active site of the catalyst and validates its effectiveness in real-life conditions.

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.

Brain regions linked to memory and emotion help humans navigate smell

Researchers found that humans can learn to navigate through a two-dimensional environment using odor information, with brain activity resembling grid-cell models previously discovered in animals. The study used a unique 'smellscape' of pine and banana scents to guide participants' mental navigation.

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.

New insight into how obesity, insulin resistance can impair cognition

A new study reveals that obesity and insulin resistance can break down the protective blood brain barrier in the brain, leading to problems with learning and memory. Blocking Adora2a receptors in a model of diet-induced obesity maintained barrier function, suggesting that controlling inflammation may prevent cognitive impairment.

Researchers find high-risk genes for schizophrenia

A team of scientists has identified 104 high-risk genes for schizophrenia, which may lead to the development of targeted treatments. The study's framework could also help track down genetic suspects in other complex diseases.

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.

Sand tiger sharks return to shipwrecks off N.C. coast

A new study reveals that female sand tiger sharks exhibit site fidelity to shipwrecks off the North Carolina coast, using them as rest stops or potential mates. The finding suggests that the wrecks are crucial habitats for this endangered shark species, which experienced significant population drops in the last century.

With abdominal etching, plastic surgeons help patients get 'six-pack abs'

A novel method of sculpting an ideal abdomen using power-assisted liposuction achieves greater definition of abdominal muscles. After the procedure, patients maintain good results with minimal postoperative complications for up to six years, thanks to comprehensive follow-up care and personalized nutrition and exercise plans.

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.

Artificial intelligence can diagnose PTSD by analyzing voices

A new study uses AI to analyze voice patterns and diagnose post-traumatic stress disorder (PTSD) in veterans. The tool was able to distinguish between the voices of those with or without PTSD with high accuracy, suggesting a potential breakthrough in telemedicine approaches.

Natural, nonbiological light-harvesting system on Earth

Researchers have discovered naturally occurring photocurrents in iron and manganese mineral coatings on rocks in China. These coatings exhibit stable photocurrents under steady illumination and rapid changes with illumination fluctuations, suggesting a potential role in biogeochemical processes.

From coal to gas: How the shift can help stabilize climate change

A recent study by the National Institute for Environmental Studies suggests that transitioning from coal to natural gas can help stabilize climate change. The study found that natural gas power plants have smaller short- and long-term impacts than coal power plants, even when considering high methane leakage rates or uncertainty issues.

Study suggests overdiagnosis of schizophrenia

A study published in the Journal of Psychiatric Practice found that about half of patients referred to a specialized schizophrenia clinic were misdiagnosed with schizophrenia. Anxiety and hearing voices were common reasons for incorrect diagnoses, highlighting the importance of second opinions from psychiatry specialists.

One woman's cancer fight: A case study in structural racism

A case study illustrates how institutional and cultural embedded racial hierarchies prevent people of color from meeting their basic needs. The authors suggest that identifying structural racism in healthcare can lead to improved outcomes, such as reducing disparities in breast cancer mortality.

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.

Advance in CAR T-cell therapy eliminates severe side effects

A new CAR molecule has been developed that kills cancer cells with less toxicity, allowing for remissions without serious side effects. Researchers have produced no severe side effects in patients with lymphoma, showing promise for a safer version of the therapy

Diet, microbiome, and stress

Researchers found that a diet enriched with ω-3 PUFAs and vitamin A can normalize gut microbiome composition and hippocampal protein levels, leading to improved emotional and memory performance in stressed rats. The study also suggests long-term links between diet and cognitive function.

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.

Heterogeneous catalyst goes enzymatic

Researchers have developed an enzyme-like heterogeneous TiO2 photocatalyst with high catalytic activity for hydrogen production. The catalyst's unique enzymatic characteristics enable it to efficiently convert light energy into H2, rivaling the performance of expensive Pt-TiO2 photocatalysts.

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.