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Science News Archive June 2021 - Page 3


Page 3 of 51

Diaries of infection preventionists give inside look at the unsung heroes of the pandemic

A diary kept by infection preventionists during the height of the COVID-19 pandemic reveals the fear, lack of confidence, and shortages of personal protective equipment faced by frontline medical workers. The surveys also highlight the increased visibility and importance gained by IPs among medical teams.

SourceAssociation for Professionals in Infection Control·JournalAmerican Journal of Infection Control·DateJun 30, 2021

Antibiotic-resistant bacteria found in cattle

New research from the University of Georgia reveals that 60% of cattle fecal samples contain multiple antibiotic-resistant salmonella strains, which can cause severe illness in people. CRISPR-SeroSeq technology identifies molecular signatures in bacteria's DNA, allowing for more sensitive detection of resistant strains.

SourceUniversity of Georgia·JournalAntimicrobial Agents and Chemotherapy·DateJun 30, 2021

Multitalented filaments in living cells

Intermediate filaments play a crucial role in maintaining cellular stability, elasticity, and resistance to mechanical stress. The study reveals the physical effects that determine their properties and how they interact with each other in networks.

SourceUniversity of Göttingen·JournalProceedings of the National Academy of Sciences·DateJun 30, 2021

Bronze Age: how the market began

Researchers found that Bronze Age weight systems emerged gradually in a westward spread from Mesopotamia to Europe, with similar units of weight used across the region. The study suggests that free entrepreneurship drove the emergence of accurate weight systems, enabling merchants to interact freely and establish profitable partnerships.

SourceUniversity of Göttingen·JournalProceedings of the National Academy of Sciences·DateJun 29, 2021

Decline of dinosaurs underway long before asteroid fell

Dinosaurs were in decline 76 million years ago due to extinctions outpacing speciations, with herbivores being particularly affected. The asteroid impact may have been the final blow, triggered by a 7°C drop in global temperature and changes in oceanic circulation patterns.

SourceCNRS·JournalNature Communications·DateJun 29, 2021

COVID-19: Reduced sense of taste and smell lingers

A new study from Aarhus University found that patients with mild COVID-19 infections experience a significantly increased longer lasting reduced sense of taste and smell, which is also the case for long-term shortness of breath. Women and the elderly are particularly affected by these symptoms.

SourceAarhus University·JournalInternational Journal of Infectious Diseases·DateJun 29, 2021

A 50% rise in the level of CO2 could reduce rainfall in the Amazon more than deforestation

A new study suggests that a 50% increase in atmospheric CO2 could lead to a 12% annual drop in Amazon rainfall, surpassing the impact of complete forest replacement with pasture. The researchers ran simulations showing that reduced transpiration and leaf area would result in less water vapor emission, leading to decreased rainfall.

Dartmouth research turns up the heat on 3D printing inks

Researchers at Dartmouth College have created a novel process for 3D printing inks that can be activated by heat and moisture, allowing for the creation of complex objects with varying mechanical strengths. This breakthrough has the potential to revolutionize the field of 3D printing by enabling the creation of single-ink solutions for...

SourceDartmouth College·JournalChem·DateJun 29, 2021