Results 111 to 120 of about 19,319 (179)

Fecal Steroids as Tracers of Human Population and Waste Management Practices at the Ancient Maya City of Ucanal, Guatemala

open access: yesArchaeometry, Volume 68, Issue 4, Page 646-658, August 2026.
ABSTRACT Geochemical data compiled from dried sediments from three water reservoirs at the ancient Maya city of Ucanal, Petén, Guatemala, reveal low to undetectable fecal biomarker concentrations. These low concentrations may be the result of the aerobic decay of sterols combined with well‐managed waste disposal practices.
Jean D. Tremblay   +3 more
wiley   +1 more source

The multidimensional regulation roles and mechanisms of calcium in fruit quality

open access: yesJournal of Integrative Plant Biology, Volume 68, Issue 8, Page 2747-2767, August 2026.
This review explores how calcium signaling molecule integrates plant hormones, environmental cues, and developmental signals to influence external fruit traits, internal nutritional properties, and physiological disorders. ABSTRACT Calcium (Ca2+), a dual‐functional mineral that serves both as an essential structural factor and a signaling molecule ...
Fei Jiang   +6 more
wiley   +1 more source

A Comparative Analysis of Ursolic and Oleanolic Acids in Eleven <i>Epilobium</i> Species. [PDF]

open access: yesMolecules
Uminska K   +7 more
europepmc   +1 more source

Distribution and bioactivities of tirucallane-type triterpenoids from Meliaceae family. [PDF]

open access: yesNat Prod Bioprospect
Abdullah FF   +6 more
europepmc   +1 more source

<i>Ganoderma lucidum</i> as a Functional Bioactive Candidate for Glycemic Regulation: Mechanisms, Preclinical Evidence, and Clinical Translation. [PDF]

open access: yesMetabolites
Florea B   +11 more
europepmc   +1 more source

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