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Science News Archive March 2019 - Page 43


Page 43 of 43

New chemical probes advance search for new antibiotics

Researchers at Indiana University have developed a new tool to observe living cells in real time under a microscope, advancing knowledge on how bacteria build their cell walls. This technology has significant value in addressing antibiotic resistance, which affects at least 2 million people in the US each year.

SourceIndiana University·JournalNature Chemistry·DateMar 1, 2019
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.

Supercomputing enables sound prediction model for controlling noise

A new analytical model predicts Helmholtz cavity's sound spectrum with high accuracy, enabling efficient design of noise-cancelling systems. The model is optimized for low speed airflows and low frequencies, allowing for modular investigation of complex geometries.

SourceGauss Centre for Supercomputing·JournalActa Mechanica·DateMar 1, 2019

Embryos' signaling proteins go with the flow

Researchers discovered that the WNT signaling pathway is more dynamic than previously thought, with different cell types responding differently to the same signals. They found that cells can tune the dynamics of this pathway to perform different functions in different contexts.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateMar 1, 2019

Two genes explain variation in color and behavior in the wall lizard

Researchers found that two specific genes, SPR and BCO2, are responsible for yellow and orange/red pigmentation in wall lizards. These genes also affect behavior, size, fighting ability, and reproductive strategies, with different-colored individuals preferring mates of their own color.

SourceUppsala University·JournalProceedings of the National Academy of Sciences·DateMar 1, 2019

Researchers discover clues to brain differences between males and females

A new study by Dr. Margaret McCarthy's Lab reveals that male sex steroids play a key role in shaping brain development, particularly in the amygdala, which controls emotions and social behaviors. The research shows that testosterone eliminates newborn cells in males, while females' cells differentiate into glial cells.

SourceUniversity of Maryland School of Medicine·JournalNeuron·DateMar 1, 2019

Paleontology: Diversification after mass extinction

A team led by Dr. Adriana López-Arbarello identifies three new species of the genus Eosemionotus, a type of ancient ray-finned fish, found in the Swiss Alps. The discovery provides insights into the rapid diversification of life after a mass extinction event.

SourceLudwig-Maximilians-Universität München·JournalPalaeontologia Electronica·DateMar 1, 2019
Celestron NexStar 8SE Computerized Telescope

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

Scientists produce colorless reservoir of platinum metal-like single atoms in liquid

Researchers produce a colorless liquid reservoir of metal-like discrete platinum atoms with high catalytic activity and stability, offering potential for reducing Pt consumption in the silicone industry. The scalable preparation method shields individual Pt atoms with hydrochlorides and docks them in the liquid through oxygen atoms.

SourceChinese Academy of Sciences Headquarters·JournalNature Communications·DateMar 1, 2019

What causes that peak? Answering a long-standing question for covalent liquids

The study identifies tetrahedral nature as the local ordering of atoms in liquids, explaining the first sharp diffraction peak (FSDP) feature. The findings provide direct evidence of coexisting order and disorder in tetrahedral liquids, leading to improved understanding of their properties.

SourceInstitute of Industrial Science, The University of Tokyo·JournalScience Advances·DateMar 1, 2019

NIH funds UT research on quality of life of LGBT caregivers

A new study by the University of Tennessee will examine the intersection of being LGBT and a caregiver, highlighting elevated risks of poor health. The project aims to collect comprehensive data on the LGBT ADRD caregiving experience to inform intervention development.

SourceUniversity of Tennessee at Knoxville·DateMar 1, 2019

Bioluminescence sensors make new approaches to drug discovery possible

Researchers developed 13 bioluminescence sensors to measure intracellular signaling pathways and detect pharmaceutical action. The biosensors provide a complete answer, or 'signaling profile,' allowing for more accurate drug testing and development.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalScience Signaling·DateMar 1, 2019
Apple iPhone 17 Pro

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

Major genetic study confirms that many genes contribute to risk for Tourette's syndrome

A meta-analysis of multiple studies identifies hundreds of gene variants contributing to Tourette's syndrome, with more severe symptoms associated with increased risk variants. The study suggests a continuous spectrum of tic disorders and raises the possibility of predicting TS development in children with mild tics.

SourceMassachusetts General Hospital·JournalAmerican Journal of Psychiatry·DateMar 1, 2019

Cell editors correct genetic errors

Scientists have successfully transferred a key part of the plant's RNA editing mechanism into a bacterium, confirming a long-held theory about its functioning. This breakthrough improves our understanding of this widespread mechanism and opens up new avenues for research.

SourceUniversity of Bonn·JournalCommunications Biology·DateMar 1, 2019

Scientists rejuvenate stem cells in the aging brain of mice

Researchers at LCSB and DKFZ successfully rejuvenated stem cells in the aging brain of mice, improving regeneration of injured areas. The study identified a molecule called sFRP5 that keeps neuronal stem cells inactive, but neutralizing it allowed them to proliferate again.

SourceUniversity of Luxembourg·JournalCell·DateMar 1, 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.

Ducks offer researchers a unique opportunity to study human touch

Scientists at Yale University investigate the mechanics of touch by studying the sensitive skin on ducks' bills, finding similarities with human palms. They identify the Piezo2 molecule as crucial for touch sensation, with duck bill skin allowing more ions to enter neurons than mouse paw skin.

SourceBiophysical Society·DateMar 1, 2019

New X-ray measurement approach could improve CT scanners

A new measurement approach could create the first CT measurement standards connected to the International System of Units (SI), allowing for more precise calibration and comparison among scanners. This could lead to improved communication among doctors, more efficient diagnosis, and less costly treatment.

SourceNational Institute of Standards and Technology (NIST)·JournalPLOS ONE·DateMar 1, 2019

Koala-spotting drones proves a flying success

Researchers at QUT developed an innovative method using drones and infrared imaging to detect koalas with high accuracy, surpassing expert observers in some areas. The technique has great potential for improving management of threatened species and detecting invasive species.

SourceQueensland University of Technology·JournalScientific Reports·DateMar 1, 2019

Towards a blood test for early-stage liver disease

Researchers have identified six proteins associated with early-stage non-alcoholic fatty liver disease (NAFLD), a condition that can progress to end-stage liver cirrhosis. The discovery of protein PIGR as a candidate biomarker for liver damage tests offers a promising new diagnostic tool.

SourceEMBO·JournalMolecular Systems Biology·DateMar 1, 2019
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.

BFU scientists learned how to manage the properties of amorphous microwires

Researchers at Immanuel Kant Baltic Federal University developed a method to control the static and dynamic properties of amorphous ferromagnetic microwires by adjusting internal mechanical stress. The study improves understanding of these materials and their potential applications in various fields.

SourceImmanuel Kant Baltic Federal University·JournalJournal of Magnetism and Magnetic Materials·DateMar 1, 2019