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Science News Archive September 2017 - Page 28


Page 28 of 39

To improve health monitoring, simply trip the 'nanoswitch'

Researchers at Boston Children's Hospital have developed a new DNA nanoswitch platform that can detect biomarkers associated with different diseases, viral strains, and genetic variabilities. The NLISA system uses gel electrophoresis to screen synthesized DNA reagents that change shape in the presence of a specific biomarker.

SourceBoston Children's Hospital·JournalProceedings of the National Academy of Sciences·DateSep 11, 2017

Small increases in physical activity reduce immobility, disability risks in older adults

A new study by Tufts University found that adding 48 minutes of moderate exercise per week can improve overall physical functioning and lower the risk of major mobility disability in older adults. This is particularly encouraging as it suggests that even small, incremental changes to activity levels can have significant benefits.

Cold region 'tipping point' now inevitable

Periglacial zones, which cover a quarter of the Earth's land surface, are expected to reduce dramatically by 2050 and almost disappear by 2100 due to climate change. This could trigger significant changes in landscapes and biodiversity, with potential implications for regional climate systems.

SourceUniversity of Exeter·JournalNature Communications·DateSep 11, 2017

CoreTrustSeal Certification launched

The ICSU World Data System has launched the CoreTrustSeal Certification, a core-level certification for Trustworthy Data Repositories. The certification is based on the DSA-WDS Core Trustworthy Data Repositories Requirements catalogue and procedures, aiming to promote sustainable and trustworthy data infrastructures.

Patients to benefit from new 3-D visualizations of the heart

Researchers have developed a new technique to visualize the human cardiac conduction system in 3D, providing unprecedented details. This technology will aid cardiologists in placing prosthetic valves near the heart's conduction system, reducing risks and improving surgical outcomes for patients with congenital heart diseases.

SourceAarhus University·JournalScientific Reports·DateSep 11, 2017

Scientists list 50 terms you may be confusing

A new paper defines 50 term pairs in psychology, including envy/jealousy and disease/illness, to improve psychological literacy. The list helps distinguish between related concepts, such as punishment vs. negative reinforcement, antisocial vs. asocial behavior.

SourceFrontiers·JournalFrontiers in Education·DateSep 11, 2017

Reports reveal racial and ethnic disparities in lupus rates

New research reveals striking racial and ethnic disparities in lupus incidence and prevalence, with higher rates found in Black, Hispanic, and Asian populations. The findings emphasize the need for vigilant diagnosis and prompt care for these groups, particularly in cases of arthritis, rashes, and kidney disease symptoms.

SourceWiley·JournalArthritis & Rheumatology·DateSep 11, 2017

Clouds like honeycomb

Researchers used a network approach to analyze the polygonal patterns in clouds, finding that they can be re-created using a simple mathematical model. This new method promises to help scientists improve the accuracy of cloud descriptions in computer models, which is crucial for climate projections.

SourceUniversity of Colorado at Boulder·JournalProceedings of the National Academy of Sciences·DateSep 11, 2017

Core solutions reach optimally extreme light pulses

Researchers at ICFO and MPL create a hollow-core photonic crystal fiber system producing single-cycle IR pulses at an unprecedented repetition rate of 160 kHz. This enables applications such as real-time electron motions observation in single molecules, opening a window to watching subatomic processes during chemical reactions.

SourceOptica·DateSep 11, 2017

Ancient wetlands offer window into climate change

Researchers have uncovered a wealth of information about ancient wetlands on North Stradbroke Island, which offer never-before-seen insights into climate change since the last ice age. The discovery provides a unique window into past climate and environments, shedding light on how plants and animals survived in a dry climate.

SourceUniversity of Adelaide·JournalJournal of Quaternary Science·DateSep 11, 2017

The USA threatened by more frequent flooding

Researchers warn that US East Coast cities are under threat from more frequent and severe flooding due to the region's slow subsidence into the Atlantic Ocean. Human activities such as groundwater extraction and reservoir creation have accelerated this process, with some areas sinking at a rate of up to three millimeters per year.

SourceUniversity of Bonn·JournalScientific Reports·DateSep 11, 2017

Mitochondrial metastasis suppressor pathway controls tumor cell metabolic reprogramming

Researchers at The Wistar Institute have discovered a novel metastasis suppressor pathway orchestrated by the mitochondrial protein SNPH. This pathway promotes tumor cell proliferation in local growth but inhibits invasion and metastasis. By studying SNPH, scientists may uncover new therapeutic approaches to target metastatic cells.

SourceThe Wistar Institute·JournalJournal of Clinical Investigation·DateSep 11, 2017

Coffee and bees: New model of climate change effects

A new model of climate change effects suggests that diversity in bee species may save the day for coffee production in Latin America. The study, which considers both plants and animals, predicts that at least five bee species will be left in future coffee-suitable areas, with 10 species remaining in about half of the regions.

SourceSmithsonian Tropical Research Institute·JournalProceedings of the National Academy of Sciences·DateSep 11, 2017

The turbulent healing powers of plasma

Computer simulations reveal that turbulence in plasma jets emerges from heat-induced sound waves, offering a new understanding of plasma's therapeutic properties. This insight may lead to more consistent and effective medical therapies, including wound healing and cancer treatment.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateSep 11, 2017

Explosion in number of known life forms

The study recovers 8,280 bacterial and 623 archaeal genomes from environmental samples, increasing the number of known life forms by nearly 10%. This represents a significant boost to our understanding of microbial diversity and its role in critical biogeochemical processes.

SourceUniversity of Queensland·JournalNature Microbiology·DateSep 11, 2017