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Science News for April 15, 2022


Association of subjective memory complaints with structural brain abnormalities, cognitive decline among older adults

Researchers found a strong association between subjective memory complaints and larger white matter hyperintensity volumes, indicating abnormal brain structure. The study also showed faster cognitive decline among those with subjective memory complaints, highlighting their importance as an early sign of cognitive impairment.

SourceJAMA Network·JournalJAMA Network Open·DateApr 15, 2022

DIY digital archaeology: New methods for visualizing small objects and artifacts

Two new methods for producing high-resolution visualizations of small artefacts are presented, allowing anyone to create high-quality images and models with minimal effort and cost. The protocols provide detailed workflows for photographic acquisition and processing, enabling replicability and reproducibility in the field of archaeology.

How bacteria evade bacteriophages in vivo

Scientists discovered that bacteria adapt their gene expression to evade bacteriophages in the gut environment, reducing susceptibility to infection. This finding paves the way for improved use of phages in therapeutic purposes.

SourceInstitut Pasteur·JournalCell Host & Microbe·TypeExperimental study·DateApr 15, 2022

Many physicians have misconceptions about e-cigarettes

A Rutgers study found that nearly 70% of physicians report patients asking about e-cigarettes, yet most incorrectly believe all tobacco products are equally harmful. E-cigarettes were more likely recommended for heavy smokers seeking cessation, while FDA-approved medications were preferred for lighter smokers.

SourceRutgers University·JournalJAMA Network Open·TypeSurvey·DateApr 15, 2022

A key brain region for substance use disorders now has a searchable atlas of distinct cell populations

Scientists have created a searchable atlas of distinct cell populations in the ventral tegmental area, a key brain region involved in reward-directed behavior and substance use disorders. The study identified 16 cell populations, including classic dopaminergic neurons, glutamatergic neurons, and GABAergic neurons.

SourceUniversity of Alabama at Birmingham·JournalCell Reports·TypeExperimental study·DateApr 15, 2022

Slow and steady wins the race – a tale of molecules dancing in a different way

Researchers have identified a new molecular process called SAP that enables liquids to equilibrate efficiently at low temperatures. This process, which is slower than structural mobility, allows molecules to cooperate and reduce their internal energy, making it possible for materials to achieve equilibrium within a reasonable time frame.

SourceUniversité libre de Bruxelles·JournalScience Advances·DateApr 15, 2022

Rain, floods and green infrastructure: Are cities mitigating the hazards equitably?

Research from Portland State University finds that cities are inconsistently placing green infrastructure in areas prone to flooding, disproportionately affecting non-white and low-income residents. However, some cities like Portland and Phoenix are making efforts to increase investments in these neighborhoods.

SourcePortland State University·JournalLandscape and Urban Planning·TypeData/statistical analysis·DateApr 15, 2022