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Science News Archive April 2019 - Page 13


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.

SourceUniversity of Rochester·JournalSmall·DateApr 23, 2019

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.

SourceUniversity of Texas at Dallas·JournalCancer Research·DateApr 23, 2019
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.

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.

SourceUniversity at Buffalo·JournalPsychological Assessment·DateApr 23, 2019

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.

SourcePenn State·JournalJournal of the American Chemical Society·DateApr 23, 2019

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%.

SourceJAMA Network·JournalJAMA·DateApr 23, 2019

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.

SourceThe Obesity Society·JournalCell·DateApr 23, 2019
Apple iPhone 17 Pro

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

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.

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...

SourceJohns Hopkins Medicine·JournalOrthopedics·DateApr 23, 2019

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.

SourceDZNE - German Center for Neurodegenerative Diseases·JournalImmunity·DateApr 23, 2019

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.

SourceUniversity of Zurich·JournaliScience·DateApr 23, 2019
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.

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.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournaliScience·DateApr 23, 2019

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.

SourceRuhr-University Bochum·JournalProceedings of the National Academy of Sciences·DateApr 23, 2019

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.

SourceDZNE - German Center for Neurodegenerative Diseases·JournalCell Reports·DateApr 23, 2019

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.

SourceFlorida Atlantic University·JournalNeurobiology of Disease·DateApr 23, 2019
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.

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.

SourceVIB (the Flanders Institute for Biotechnology)·JournalNature Chemical Biology·DateApr 23, 2019

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.

SourceDuke University·JournalEcology·DateApr 23, 2019

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.

SourceUniversity College London·JournalAddiction Biology·DateApr 23, 2019
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.

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.

SourceAarhus University·JournalTherapeutic Advances in Gastroenterology·DateApr 23, 2019

Lessons from Hurricane Maria: Doctors offer tips to better prepare clinics for catastrophe

Radiation oncologists provide guidance on preparing for and responding to natural disasters, including creating emergency operations plans, providing patients with access to treatment plans via flash drives, and identifying alternative sources of power. The tips aim to minimize treatment delays during a disaster.

SourceAmerican Society for Radiation Oncology·JournalPractical Radiation Oncology·DateApr 22, 2019
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.

Study: Reducing energy required to convert CO2 waste into valuable resources

University of Illinois researchers have developed a new electrolysis technology that uses glycerol to reduce the energy consumption of converting CO2 waste into valuable resources. The process reduces energy requirements by 53% and has potential for carbon neutrality or negativity, depending on grid setup.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalNature Energy·DateApr 22, 2019

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.

SourceDOE/Brookhaven National Laboratory·JournalThe Journal of Physical Chemistry Letters·DateApr 22, 2019

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.

SourceUniversity of Pennsylvania·JournalNeuron·DateApr 22, 2019

DNA is managed like climbers' rope to help keep tangles at bay

Researchers have identified two sets of proteins that work together to keep DNA strands unknotted and tangle-free. These proteins, known as SMC and TopoII, use a mechanism similar to a belay device on climbers' rope to resolve knots and links in DNA.

SourceUniversity of Edinburgh·JournalProceedings of the National Academy of Sciences·DateApr 22, 2019
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.

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.

SourceMedical College of Georgia at Augusta University·DateApr 22, 2019

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.

SourceVanderbilt University Medical Center·JournalNature Neuroscience·DateApr 22, 2019
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.

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.

SourceDuke University·JournalEcology·DateApr 22, 2019
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.

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.

SourceWolters Kluwer Health·JournalPlastic & Reconstructive Surgery·DateApr 22, 2019

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.

SourceNYU Langone Health / NYU Grossman School of Medicine·JournalDepression and Anxiety·DateApr 22, 2019

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.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 22, 2019

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.

SourceNational Institute for Environmental Studies·JournalNature Climate Change·DateApr 22, 2019
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.

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.

SourceJohns Hopkins Medicine·JournalJournal of Psychiatric Practice·DateApr 22, 2019

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.

SourceRush University Medical Center·JournalNew England Journal of Medicine·DateApr 22, 2019

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

SourceUniversity of Southern California·JournalNature Medicine·DateApr 22, 2019
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.

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.

SourceProceedings of the National Academy of Sciences·JournalProceedings of the National Academy of Sciences·DateApr 22, 2019

Biomimetics: Artificial receptor distinguishes between male and female hormones

Chemists at Tokyo Tech design a capsule-shaped synthetic receptor that exhibits high binding affinity towards male steroid hormones, enabling ultrasensitive detection of testosterone. The receptor's unique cavity structure contributes to its selectivity and is promising for medical and sports applications.

SourceTokyo Institute of Technology·JournalScience Advances·DateApr 22, 2019

Skipping breakfast associated with increased risk of cardiovascular death

A recent study published in the Journal of the American College of Cardiology found that skipping breakfast significantly increases the risk of cardiovascular death. Eating breakfast regularly is associated with lower mortality rates from heart disease and stroke.

SourceAmerican College of Cardiology·JournalJournal of the American College of Cardiology·DateApr 22, 2019

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.

SourceInstitute for Basic Science·JournalNature Materials·DateApr 22, 2019
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.

Sugar entering the brain during septic shock causes memory loss

Research reveals that sugar released into bloodstream enters brain during septic shock, causing premature mental aging and memory loss. The study provides a clear target for drug therapy: binding to the sugar or converting it to non-impairing compounds.

SourceRensselaer Polytechnic Institute·JournalProceedings of the National Academy of Sciences·DateApr 22, 2019