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Science News Archive August 2024 - Page 21


Page 21 of 38

New microscope offers faster, high-resolution brain imaging

Researchers developed a new two-photon fluorescence microscope that captures high-speed images of neural activity at cellular resolution, providing insights into brain function and neurological diseases. The microscope uses an adaptive sampling scheme to image neurons in real time, reducing damage to brain tissue.

SourceOptica·JournalOptica·DateAug 15, 2024

New brain-computer interface allows man with ALS to ‘speak’ again

Researchers developed a new brain-computer interface that translates brain signals into speech with up to 97% accuracy, enabling a man with amyotrophic lateral sclerosis (ALS) to communicate with friends and family. The system was tested in real-time conversations with continuous updates, achieving high word accuracy rates.

SourceUniversity of California - Davis Health·JournalNew England Journal of Medicine·DateAug 14, 2024

Impact of 700 years of Inuvialuit subsistence hunting on beluga whales

A team analyzed 45 zooarchaeological remains and compared findings with contemporary data to assess the effect of sustained subsistence harvests on beluga genetic diversity, population structuring, and foraging ecology. The study found no significant changes in genetic diversity or population structuring over time.

SourceUniversity of Copenhagen - The Faculty of Health and Medical Sciences·JournalProceedings of the National Academy of Sciences·DateAug 14, 2024

New mechanism of action kills cancer cells

Researchers have discovered a cobalt complex that triggers ferroptosis in tumor cells, slowing down microtumor growth. The substance has shown promise as an alternative to conventional chemotherapeutic agents but requires further development and targeting of healthy cells.

SourceRuhr-University Bochum·JournalAngewandte Chemie International Edition·DateAug 14, 2024

The American Ornithological Society (AOS) announces its 2024 award winners for achievements in ornithological research, service, conservation, and publication

The American Ornithological Society has announced its 2024 award winners in recognition of outstanding contributions to the scientific study and conservation of birds. Juan Carlos Reboreda and René Duckworth were awarded for their significant work on behavioral ecology, conservation, and evolutionary changes in bird behavior.

Researchers unveil mysteries of ancient Earth

A Rice-led team studied massif-type anorthosites to understand their formation, revealing they likely originated from melting of subducted oceanic crust beneath convergent continental margins. The research provides new insights into Earth's thermal and tectonic evolution and chronicles the physical evolution of our planet.

SourceRice University·JournalScience Advances·DateAug 14, 2024

New insights into neural circuit imaging: A comparison of one-photon and two-photon techniques

A recent study by Harvard University researchers compares the effectiveness of one-photon (1P) versus two-photon (2P) voltage imaging in neural circuits. The study found that 2P excitation requires approximately 10,000 times more illumination power per cell compared to 1P excitation, posing significant challenges for 2P voltage imaging.

Children’s Hospital of Philadelphia researchers find possible inaccuracies in crash-reported child passenger injuries

A study by Children's Hospital of Philadelphia researchers found discrepancies between crash reports and hospital data, suggesting incomplete or inaccurate pictures of child passenger safety. The findings emphasize the importance of enhancing injury data quality to assess transportation safety strategies.

SourceChildren's Hospital of Philadelphia·JournalAmerican Journal of Preventive Medicine·TypeSystematic review·DateAug 14, 2024

People with COPD, asthma have higher risk of health problems from increased wildfire activity, smoke

A new perspective article highlights the impact of wildfires on individuals with COPD and asthma. The five-part Population Health Approach, developed by the University of California, Davis Health, identifies high-risk patients and provides interventions to mitigate poor air quality's negative effects.

SourceCOPD Foundation·JournalChronic Obstructive Pulmonary Diseases Journal of the COPD Foundation·DateAug 14, 2024

How bread dough gave rise to civilization

A study by the Open Wild Wheat Consortium explains how Aegilops tauschii, a wild grass, contributed to the genetic diversity of bread wheat, enabling its rapid spread across different climates. This hybridization event allowed humans to settle down and form societies.

SourceJohn Innes Centre·JournalNature·DateAug 14, 2024

New study reveals loophole in digital wallet security—even if rightful cardholder doesn’t use a digital wallet

Researchers at UMass Amherst discovered a vulnerability in digital wallet security that can be exploited by malicious actors even if the rightful cardholder doesn't use a digital wallet. The study found that banks prioritize convenience over security, leaving users' credit cards susceptible to unauthorized transactions.

SourceUniversity of Massachusetts Amherst·TypeComputational simulation/modeling·DateAug 14, 2024

Lewis-base ligand optimized electrolyte composition, reconstructing interface hydrogen-bond network, enhancing CO2 electrolysis performance

The study proposes regulating the electrode-electrolyte interface using Lewis-base ligand molecules to enhance CO2 electrolysis. The addition of ethylenediaminetetraacetic acid molecules and similar ligands reconstructs the cation solvation shell and reshapes the interface hydrogen-bond network, boosting performance.

SourceScience China Press·JournalNational Science Review·DateAug 14, 2024

Climate reporting standards insufficient, must be expanded, say Oxford net zero experts

A new study by the University of Oxford recommends expanding climate reporting standards to capture companies' wider impact on global net zero. This includes their product power, purchasing power, and political influence. The goal is to incentivize systemic change through products, purchases, and policy lobbying.

SourceTaylor & Francis Group·JournalCarbon Management·TypeCommentary/editorial·DateAug 14, 2024

Giant fossil seeds from Borneo record ancient plant migration

Researchers discovered large fossil beans in Indonesian Borneo, indicating the ancestors of black bean trees migrated from Asia to Australia during tectonic plate collision. The findings provide first macrofossil evidence of a plant lineage moving from Asia into Australia.

SourcePenn State·JournalInternational Journal of Plant Sciences·TypeObservational study·DateAug 14, 2024

Large study confirms significant frequency of undetected responsiveness in severe brain injury

A recent study published in the New England Journal of Medicine found that one-fourth of patients in a coma or vegetative state showed clear signs of cognitive function on brain scans despite being unable to move or speak. This significant frequency of undetected responsiveness suggests that many seemingly unconscious patients may be a...

SourceWeill Cornell Medicine·JournalNew England Journal of Medicine·DateAug 14, 2024

Hydrometeorology and location affect hospitalizations for waterborne infectious diseases in the US

A study published in PLOS Water found associations between weather, geographic location, and urban/rural settings with waterborne infectious disease hospitalizations. Hospitalization rates were higher for enteric and biofilm-forming bacterial pathogens in areas using groundwater, while precipitation increased parasitic infections.

SourcePLOS·JournalPLOS Water·TypeObservational study·DateAug 14, 2024

Resistance to the main drugs used in Brazil against Leishmania is found in parasite infecting cutaneous leishmaniasis patient

Researchers found a Leishmania amazonensis strain resistant to amphotericin B, a widely used treatment for cutaneous leishmaniasis. The study highlights the urgent need for alternative drugs to combat the disease, which affects over 15,000 people in Brazil annually.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalPLOS Neglected Tropical Diseases·DateAug 14, 2024

Patterns of intelligence

Researchers identify neural basis for abstraction and inference processes in the human brain, showing coordinated brain cell activity represents learned knowledge. The study used artificial intelligence to extract relevant responses from thousands of brain cells.

SourceCedars-Sinai Medical Center·JournalNature·TypeRandomized controlled/clinical trial·DateAug 14, 2024

Tropical Atlantic mixing rewrites climate pattern rules

Researchers have discovered that changes in the ocean's mixed layer are the primary force behind Atlantic Multidecadal Variability (AMV) in the tropics. This phenomenon influences weather patterns across North America, Europe, and Africa, affecting hurricane activity and rainfall in regions like the Sahel.

SourceUniversity of Reading·JournalGeophysical Research Letters·TypeObservational study·DateAug 14, 2024