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Science News Archive June 2019 - Page 32


Page 32 of 41

Older forests resist change -- climate change, that is

A new study by University of Vermont researchers found that older forests are less vulnerable to climate change, particularly for carbon storage, timber production, and biodiversity. The research analyzed 18,500 forest plots across the eastern US and Canada, identifying priority regions for forest climate adaptation efforts.

SourceUniversity of Vermont·JournalGlobal Change Biology·DateJun 7, 2019

Worm study sparks hope for slowing muscle decline

A recent study published in the FASEB Journal has found that inhibiting various stages of mitochondrial dysfunction can suppress muscle atrophy. Researchers used Caenorhabditis elegans worms to model human muscle diseases and showed that experimental drugs could prevent muscle decline caused by dysfunctional mitochondria.

SourceUniversity of Exeter·JournalThe FASEB Journal·DateJun 7, 2019

NIH-funded trial finds vitamin D does not prevent type 2 diabetes in people at high risk

A large NIH-funded study found that taking a daily vitamin D supplement does not prevent type 2 diabetes in adults at high risk. The study, which enrolled over 2,400 participants, found no significant difference between those who took 4,000 IU of vitamin D and those who took a placebo.

Proof of sandwiched graphene-membrane superstructure opens up a membrane-specific drug delivery mode

Researchers have created a graphene-based sandwiched superstructure that enables efficient transport of nanoparticles inside cell membranes, outperforming traditional carriers in anti-cancer efficacy. This discovery could significantly improve cytotoxicity effects and pave the way for novel membrane-specific drug delivery modes.

SourceChinese Academy of Sciences Headquarters·JournalScience Advances·DateJun 7, 2019

Emerging frontiers in phenological research

This special issue of Applications in Plant Sciences presents cutting-edge methods to study plant phenology, including automated scoring from herbaria collections and standardized ontology for data integration. These innovations enable large-scale datasets to be generated, addressing the urgent need to understand ecosystem responses to...

SourceBotanical Society of America·JournalApplications in Plant Sciences·DateJun 6, 2019

Counting the uncounted

Researchers developed a new approach to estimate population abundance from simultaneous counts of unmarked individuals over multiple sites. The methodology works best in scenarios with few sites, large variation in abundance among sites, and individuals moving between sampling sites.

SourceWildlife Conservation Society·JournalConservation Biology·DateJun 6, 2019

Creating new molecular sieves

A team of researchers from the University of Delaware and Jilin University has synthesized the most stable crystalline porous material on record, a polyarylether-based covalent organic framework. This material can sift antibiotic residue out of water in a pH ranging from 1 to 13 and is stable up to 400 degrees Celsius.

SourceUniversity of Delaware·JournalNature Chemistry·DateJun 6, 2019

Study shakes up sloth family tree

Two studies published in Nature Ecology & Evolution challenge long-standing sloth classification, revealing new relationships between ancient ground sloths and modern species. The findings use proteins in fossils to map an entire lineage for the first time, rewriting our understanding of sloth evolution.

SourceUniversity of Chicago·JournalNature Ecology & Evolution·DateJun 6, 2019

New research shakes up the sloth family tree

Researchers from McMaster University and the University of Montpellier have reached almost identical results in two separate studies, overturning a longstanding consensus on sloth evolutionary relationships. The combined molecular evidence suggests that ancient sloths may have been at home on both land and in trees.

SourceMcMaster University·JournalCurrent Biology·DateJun 6, 2019

Special issue: Organoids open frontiers in biomedicine, as design challenges are addressed

Recent advances in organoid technology are revolutionizing cancer research, allowing for personalized drug testing on individual patient cells. Meanwhile, integrating organoids with organ-on-a-chip technology may overcome control challenges and enhance physiological realism, paving the way for more advanced biomedical applications.

Magnetism discovered in the Earth's mantle

Researchers from Germany, France, Denmark, and the USA have made a groundbreaking discovery about the Earth's magnetic field. By studying iron oxide hematite under extreme conditions, they found that it retains its magnetic properties even deep in the mantle, challenging the long-held assumption of its non-magnetic nature.

SourceUniversity of Münster·JournalNature·DateJun 6, 2019

3D microchannels promote self-assembly of ordered emulsions at low droplet concentrations

Researchers from Singapore University of Technology and Design have discovered a method to achieve self-assembly of low-density droplets in microfluidic flows using three-dimensional microchannels. The study shows that by introducing a gradual increase in height, droplets can accumulate and assemble into ordered structures.

Manipulating nanoscale light in nanocavity of scanning tunneling microscope junctions

A research team at the Fritz-Haber Institute in Berlin demonstrated manipulation of nanolight spectrum by shaping plasmonic gold tips with a focused ion beam milling technique. The spectral response was investigated using scanning tunneling luminescence, revealing precise control over Fabry-Pérot type interference of surface plasmon po...

SourceJapan Science and Technology Agency·JournalNano Letters·DateJun 6, 2019

UBC researchers find ways to hackproof smart meters

Researchers at UBC have developed a program to improve the security of smart meters and protect against software-interference attacks. The method addresses vulnerabilities that can be carried out by an attacker with low-cost equipment, found nine types of attacks within an hour through code-level analysis.

SourceUniversity of British Columbia·JournalACM Transactions on Embedded Computing Systems·DateJun 6, 2019