Soil contains approximately 2344Gt (1 gigaton=1 billion tonnes) of organic carbon globally
and is the largest terrestrial pool of organic carbon. Small changes in the soil organic carbon …

Abstract Knowledge maps are node-link representations in which ideas are located in nodes
and connected to other related ideas through a series of labeled links. The research on …

The network construct is in common usage in entrepreneurship research. However while
the increasing use of the construct has furthered our understanding of the phenomenon of …

A simple small-scale procedure for the sequential extraction of isoprenoid quinones and polar
lipids from bacterial cells was developed. Extraction with a biphasic mixture of petroleum …

Background Rucaparib, a poly(ADP-ribose) polymerase inhibitor, has anticancer activity in
recurrent ovarian carcinoma harbouring a BRCA mutation or high percentage of genome-…

Objective The objective was to conduct a scientifically rigorous update to the National Sleep
Foundation’s sleep duration recommendations. Methods The National Sleep Foundation …

A rapid protocol for the extraction of total nucleic acids from environmental samples is described.
The method facilitates concomitant assessment of microbial 16S rRNA diversity by PCR …

Objective To make scientifically sound and practical recommendations for daily sleep
duration across the life span. Methods The National Sleep Foundation convened a …

Background The relationship between the presence of antibodies to severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) and the risk of subsequent reinfection remains …

Context: Despite recognition that androgen deficiency in men should be defined according to
biochemical and clinical criteria, most prevalence estimates are based on low testosterone …