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Science News Archive March 2023 - Page 21


Page 21 of 44

An elegant new orchid hiding in plain sight

A new Japanese 'ladies tresses' orchid, Spiranthes hachijoensis, has been found in private gardens and on balconies. The discovery suggests that other new species may be hidden in common environments, eliminating the need for remote tropical rainforest expeditions.

SourceKobe University·JournalJournal of Plant Research·TypeCase study·DateMar 17, 2023

Hansel and Gretel's breadcrumb trick inspires robotic exploration of caves on Mars and beyond

University of Arizona engineers create a communication network allowing robots to explore subsurface environments independently, deploying miniaturized sensors as they traverse caves. The 'breadcrumb-style' system enables swarms of individual robots to navigate convoluted environments without losing contact.

SourceUniversity of Arizona·JournalAdvances in Space Research·TypeComputational simulation/modeling·DateMar 17, 2023

Discovery of an unexpected function of blood immune cells : Their ability to proliferate !

A new study by researchers at the University of Liège reveals that monocytes, blood immune cells, have the ability to proliferate and generate macrophages to replace damaged or missing immune cells. This discovery challenges current knowledge of cell proliferation and has implications for understanding various diseases, including cancer.

SourceUniversity of Liège·JournalNature Immunology·DateMar 17, 2023

Another crystalline layer on crystal surface as a precursor of crystal-to-crystal transition

Researchers at Hong Kong University of Science and Technology propose the existence of pre-solid-solid transition, a surface layer on crystals that facilitates phase transitions. The newly formed layer has been confirmed through experiment and computer simulation, with promising applications in material science.

SourceHong Kong University of Science and Technology·JournalNature Physics·TypeExperimental study·DateMar 17, 2023

First wearable health sensor for monitoring muscle atrophy

Researchers developed the first wearable sensor for monitoring muscle atrophy, a condition typically caused by degenerative disease or aging. The sensor can measure small-scale volume changes in overall limb size and monitor muscle loss of up to 51%. This technology has the potential to create less burden on patients and improve treatm...

SourceOhio State University·JournalIEEE Transactions on Biomedical Engineering·TypeExperimental study·DateMar 17, 2023

3D radar scan provides clues about threats to iconic Alaskan glacier

Researchers used a 3D radar scan to reveal that Malaspina Glacier is undercut by channels, making it more vulnerable to melting and potentially contributing significantly to global sea level rise. The glacier's bulk sits below sea level, and its coastal barrier erodes, allowing ocean water to access the glacier and accelerate its retreat.

SourceUniversity of Arizona·JournalJournal of Geophysical Research Earth Surface·TypeImaging analysis·DateMar 17, 2023

Breaking barriers in hepatitis C diagnosis and treatment for populations at risk

A new minimally invasive test using dried blood spots (DBS) has been shown to effectively assess cure after treatment and differentiate between reinfection and treatment failure. The results support the viability of decentralizing treatment for people who inject drugs, who often face challenges accessing healthcare.

SourceGermans Trias i Pujol Research Institute·JournalJournal of Medical Virology·TypeObservational study·DateMar 17, 2023

Changes in mangrove blue carbon under elevated atmospheric CO2

Elevated atmospheric CO2 concentrations are expected to increase mangrove's ability to sequester additional carbon, reducing the rate of greenhouse gas emissions. Long-term field observations and experiments can help better understand the mechanisms behind this phenomenon and predict future changes in mangrove carbon sequestration.

SourceEcosystem Health and Sustainability·JournalEcosystem Health and Sustainability·TypeSystematic review·DateMar 17, 2023

Genomic study of ancient humans sheds light on human evolution on the Tibetan Plateau

A genomic study of ancient humans on the Tibetan Plateau reveals a single origin for ancient humans, deriving from a northern East Asian population. The study also found distinct genetic patterns in different regions of the plateau, indicating three regional groups with unique historical patterns that began to merge after 2500 BP.

SourceChinese Academy of Sciences Headquarters·JournalScience Advances·DateMar 17, 2023

New research suggests AI image generation using DALL-E 2 has promising future in radiology

Researchers found that DALL-E 2 has learned relevant representations of x-ray images and shows potential for text-to-image generation, but its performance varies with CT, MRI, and ultrasound image prompts. Synthetic data generated by DALL-E 2 could accelerate deep learning tools in radiology and address data sharing concerns.

SourceJMIR Publications·JournalJournal of Medical Internet Research·DateMar 16, 2023

Cellular waste removal differs according to cell type

Researchers at the University of Bonn identified unique features and novel lysosomal proteins in six different cell types, including liver cells and cancer cells. The study provides new insights into cellular waste removal machinery and its role in diseases such as Alzheimer's and Parkinson's.

SourceUniversity of Bonn·JournalMolecular & Cellular Proteomics·TypeExperimental study·DateMar 16, 2023

KAIST leads AI-based analysis on drug-drug interactions involving Paxlovid​

A KAIST research team has developed an advanced AI-based drug interaction prediction technology that analyzed the interaction between Paxlovid ingredients and other prescription drugs. The study identified potential drug-drug interactions and alternative drugs with low adverse effects, which can aid in developing new treatments.

SourceThe Korea Advanced Institute of Science and Technology (KAIST)·JournalProceedings of the National Academy of Sciences·TypeMeta-analysis·DateMar 16, 2023

Genetic causes of three previously unexplained rare diseases identified

Researchers at the Icahn School of Medicine at Mount Sinai identified previously unknown genetic causes of three rare diseases: primary lymphedema, thoracic aortic aneurysm disease, and congenital deafness. The study used a computational approach to analyze large genetic datasets from rare disease cohorts.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNature Medicine·TypeMeta-analysis·DateMar 16, 2023