The carbon isotopic composition of atmospheric CH 4 (δ13 C CH4) is a powerful tool for tracking the sources and sinks of atmospheric CH 4. Different CH 4 sources have distinctive δ 13 C CH4 values: ...

The steroidogenic enzyme 3β-hydroxysteroid dehydrogenase type 1 (3βHSD1) correlates with tumor aggressiveness, and its inhibitors, biochanin-A (BCA) and the related analogs, have shown antitumor ...

As former EPA and ORD scientists, we argue that dismantling ORD would not only jeopardize human and environmental health, but also weaken American science and global competitiveness. ORD’s vital—yet ...

Crystallization of the lunar magma ocean yielded a chemically unique liquid residuum named KREEP. This component is expressed as a large patch on the near side of the Moon and a possible smaller patch ...

This work was supported by funding from NIH T32 AR079114/AR/NIAMS and 1332329/EFRI/NSF. Mohammed A. Barajaa was funded by Imam Abdulrahman Bin Faisal University, Dammam, 34212, Saudi Arabia. We ...

Rapid pathogen detection is crucial for effective disease management, particularly in bloodstream infections. Current molecular diagnostics often require nucleic acid preamplification, adding time and ...

We, a group of forensic scientists who have testified as expert witnesses, are not the first to point out this problem and possible solution. A landmark 2009 report from the National Research Council ...

A growing number of protein domains have been shown to undergo fold switching upon interaction with a partner, yet the mechanism remains unknown. One example is the transcriptional regulator RfaH ...

During plant growth, the demand for energy necessitates an increase in the number of chloroplasts. This increase is achieved through chloroplast division, which begins with the formation of the ...

Mammals are diploid creatures. Every cell in their body contains two sets of chromosomes, one from the mother and one from the father. Mouse embryos with only paternal genomes can not develop to term, ...

A cure for chronic hepatitis B requires eliminating or permanently silencing covalently closed circular DNA (cccDNA). A pivotal target of this approach is the hepatitis B virus (HBV) X protein (HBx), ...

Circulating monocytes are recruited to the tumor microenvironment, where they can differentiate into macrophages that mediate tumor progression. To reach the tumor microenvironment, monocytes must ...