The concept of a biosignature is widely used in astrobiology to suggest a link between some
observation and a biological cause, given some context. The term itself has been defined …

Terpenoids, also known as isoprenoids, are the largest and most diverse class of organic
compounds in nature and are involved in many membrane-associated cellular processes …

Microbial lipid biomarkers preserved in geological archives can be used to explore past
climate changes. Branched glycerol dialkyl glycerol tetraethers (brGDGTs) are unique …

Lower-tier suppliers' sustainability noncompliance and focal company's failure at meeting
the expectations of the stakeholders to extend sustainability towards lower-tier suppliers …

Sterols are vital for nearly all eukaryotes. Their distribution differs in plants and animals, with
phytosterols commonly found in plants whereas most animals are dominated by cholesterol …