Bluesky Facebook Reddit Email

Science News Archive 2023


Page 324 of 444

Researchers clear the way for well-rounded view of cellular defects

A recent study has investigated how cells divide in fibrous environments, revealing the impact of extracellular matrix shape and fiber number on mitotic errors. By re-creating and studying lattice structures, researchers have gained a deeper understanding of cellular dynamics and its connection to disease biology.

Apple iPhone 17 Pro

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

Researchers tackle major obstacle to stem-cell heart repair

Researchers at the University of Washington School Medicine have engineered stem cells that do not generate dangerous arrhythmias. These 'MEDUSA' cardiomyocytes can engraft in the heart, mature into adult cells and beat in sync with natural pacemaking without generating dangerous heart rates.

New peer-reviewed, decade-long study suggests Indigenous-managed forests in Brazil’s Amazon absorb thousands of dangerous pollutants from noxious fumes from wildfires, preventing 15 million costly cases of disease every year

A decade-long study suggests Indigenous-managed forests can absorb up to 26,000 metric tons of dangerous pollutants from wildfires each year, preventing an estimated 15 million cases of respiratory and cardiovascular disease. This absorption saves Amazon cities US$2 billion a year in healthcare costs.

Fasting diet reduces risk markers of type 2 diabetes

A fasting diet that focuses on early eating has been shown to reduce the risk markers of type 2 diabetes. Researchers found that participants who followed a time-restricted, intermittent fasting diet experienced greater tolerance to glucose and reduced blood lipids compared to those on a daily, low-calorie diet.

Meta Quest 3 512GB

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

‘Snowball Earth’ might have been slushball

New research suggests the Marinoan Ice Age, which created glaciers from pole to pole 635 million years ago, had patches of open water in mid-latitude seas. This finding provides evidence that life could have persisted during this period, potentially influencing the carbon cycle and climate.

Significant step in fight against drug resistance in TB

Researchers have identified new ways to treat antibiotic-resistant TB by targeting unique weaknesses in the bacteria. The study found that certain drug-resistant strains are more sensitive to antibiotics targeting unrelated pathways, paving the way for faster treatment and reduced resistance.

‘Beige fat’ could hold key to age-related metabolism change

New research suggests a way to ward off age-related weight gain by stimulating beige fat cells. Beige fat has thermogenic properties that can reduce blood sugar and fatty acids causing heart disease. The study identifies a specific signaling pathway responsible for suppressing beige fat formation in older mice.

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.

Broccoli consumption protects gut lining, reduces disease, in mice

Researchers at Penn State found that broccoli's aryl hydrocarbon receptor ligands bind to a protein in mice, promoting gut health and reducing disease. This interaction activates various activities that affect intestinal cell functions, leading to improved gut barrier function and resilience.

The hidden role of food in urban conflicts in Central America

Research explores the complex relationship between droughts, food security, and conflict in Central America. The study finds that decreases in water availability play a major role in conflict insurgences, while stable conditions of peace are more influenced by favorable socio-economic conditions.

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.

Toward tunable molecular switches from organic compounds

Researchers at Hokkaido University and Kyushu University have developed a technique to synthesize potential molecular switches from anthraquinodimethanes (AQDs), a group of overcrowded organic molecules. The synthesized derivatives can stably form twisted and folded isomers, as well as other isomeric forms, in different solvents.

Sierra squirrels find their niche amid a changing climate

A study of California's high-elevation Sierra Nevada squirrels reveals that climate is just one factor influencing their niche. Squirrel species use different spaces due to variations in climate, topography, and land cover, such as meadows or forests.

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.

Generative modeling tools renders 2D sketches in 3D

Researchers at Carnegie Mellon University developed Pix2pix3d, a machine learning tool that generates realistic 3D representations of 2D sketches. The tool allows users to create customized 3D models for various applications, including video games and consumer products.

Researchers ID biomarkers of response to immunotherapy for kidney cancer

Researchers have identified a biomarker signature that can predict which patients with kidney cancer will respond well to immunotherapy. The signature is based on the number of immune cells in and around tumors, the amount of dead cancer tissue, and mutations to a tumor suppressor gene called PBRM1.

Fluke 87V Industrial Digital Multimeter

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

MSU to refurbish world’s first superconducting cyclotron for chip testing

The MSU facility will provide several thousand additional hours of chip testing capacity annually, addressing the US national shortfall in advanced microelectronics testing. The K500 cyclotron will be used to test electronic components for space-based applications where levels of ionizing radiation are higher than at Earth's surface.

Microbes that “eat together” may benefit from a shared immunological memory

Researchers discovered that viruses that infect bacteria and archaea in deep-sea hydrothermal vents share a common immunological memory, allowing symbiotic microbes to defend against the same virus. This challenges conventional wisdom on virus-host interactions, revealing a more nuanced relationship between these microorganisms.

Random matrix theory approaches the mystery of the neutrino mass!

Researchers at Osaka Metropolitan University analyzed the collection of leptons to demonstrate that the lepton flavor mixings are large in the random mass matrix model. The study found that the measure of the matrix should obey the Gaussian distribution, which supports the experimental results for the seesaw model.

How much cadmium is contained in cocoa beans?

A team of researchers has developed a highly sensitive imaging method to detect heavy metals like cadmium in cocoa beans. The study found that cadmium accumulates primarily in the outer shell of the bean and can be reduced through improved processing steps, which could minimize exposure.

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.

tRNA biomarkers for cancer diagnosis and prognosis enabled by new method

Researchers have developed a new method called Nano-tRNAseq to measure both the abundance and modification of tRNA molecules in a single step. This technology has significant advantages over conventional techniques, offering rapid, cost-effective, and high-throughput analysis with single-molecule resolution.

Study reveals the 3D structure of a protein involved in genome editing

Researchers at the University of Tokyo have discovered the 3D structure of TnpB, a protein involved in genome editing and a probable precursor to the CRISPR-Cas12 enzyme. The study reveals how TnpB recognizes and cuts DNA using a unique pseudoknot shape similar to that found in guide RNAs of Cas12 enzymes.

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.

Molecular biology: DNA packaging supports cell division

Researchers have discovered that a characteristic nucleosome structure is essential for replication initiation at certain genome locations. This regular chromatin arrangement allows the replication machinery to access the DNA, enabling cells to divide correctly.

Pancreatic lesions may occur more frequently than previously thought

Researchers analyzed 30 healthy pancreata from diverse donors and found PanIN lesions in 18 cases, which had distinct microenvironments compared to normal pancreatic tissue. The study suggests that PanINs may already possess features of malignant cells and challenges the long-held assumption that they always progress to cancer.

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.

New study reveals design clues for silver-based superatomic molecules

Researchers from Japan have synthesized two di-superatomic molecules composed of Ag and evaluated the factors involved in their formation. The study found that a twist between the two icosahedral structures stabilizes the nanocluster by shortening the distance between them. Additionally, the presence of Pd and Pt central atoms was foun...

Archaeology: Evidence of drug use during Bronze Age ceremonies

Researchers found evidence of ancient drug use in Europe using human hair analysis, revealing the presence of scopolamine, ephedrine and atropine in Bronze Age containers from Menorca. The substances may have been derived from nightshade plants used in shamanic rituals.

Defects can be good and help combat climate change

A novel Cu-based catalyst with improved catalytic performance for CO2 reduction has been developed by leveraging strong metal-support interactions and defect sites cooperativity. The DFNS/TiO2-Cu catalyst showed excellent activity and stability, outperforming other copper-based thermal catalysts.

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.

Blind dating in bacteria evolution

Researchers used ancestral sequence reconstruction to study protein interactions in cyanobacteria, finding that they can evolve independently of direct selection pressure. The discovery challenges classical evolutionary theory and suggests that fortuitous compatibility may be the basis for a significant fraction of cellular interactions.

Forest futures

A new study predicts US forests may lose significant carbon storage due to climate change, compromising their role as a climate solution. The researchers used multi-perspective modeling approaches to forecast changes in aboveground carbon storage in different regions.

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.

Hyenas die also in road accidents

A long-term study reveals that the risk of fatal collisions between vehicles and spotted hyenas in the Serengeti is influenced by road characteristics and the annual migration of large ungulate herds. Adult females are most frequently run over, likely due to their regular travel distances between dens and migrating prey herds.

Twinkling stars fuel interstellar dust

Research reveals connection between star brightness and dust concentrations, paving way for study of dust's role in planetary formation. The University of Tokyo's latest findings may help unravel the secrets of life's creation.

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.

Shedding light on mechanisms of electrochemical energy storage

Researchers at Drexel University have developed a new method that combines UV-visible spectroscopy with cyclic voltammetry to track ion movement in batteries and supercapacitors. This breakthrough could lead to the design of higher performing energy storage devices.

Implant treats dangerously low blood pressure in people with spinal cord injury

Researchers developed an implant that delivers electrical stimulation to specific spinal neurons to treat dangerously low blood pressure in people with spinal cord injuries. The treatment, called the neuroprosthetic baroreflex, has shown promise in clinical trials and could be used in hospitals and at home to monitor blood pressure.

Editorial: Share SARS-CoV-2 data immediately

The World Health Organization (WHO) is urging countries to share data on the origins of SARS-CoV-2 immediately. Scientists argue that early data from China could help prevent future pandemics by providing insights into the virus's transmission and potential animal sources.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

New test could help identify type 2 diabetes risk

Researchers used DNA methylation data alongside traditional risk factors to improve prediction accuracy for type 2 diabetes. The study, involving over 14,600 participants, found that the new approach correctly predicted an extra 449 individuals, leading to potential preventative measures and reduced health burden.

A hidden viral world within us: What is the impact on our health?

Researchers discovered multiple virus types persisting within organs such as kidneys and brain, challenging our understanding of the human microbiome. The findings suggest viruses may contribute to chronic diseases like cancer or autoimmune disorders, while also playing a role in immune system regulation.