Results 271 to 280 of about 232,018 (415)

Multi‐proxy reconstruction of the Holocene vegetation and land use dynamics in the Julian Alps, north‐west Slovenia

open access: yesJournal of Quaternary Science, Volume 38, Issue 1, Page 107-122, January 2023., 2023
Abstract Small mountain lakes are natural archives for understanding long‐term natural and anthropogenic impact on the environment. This study focused on long‐term (last ca. 13 000 years) vegetation changes and sedimentary processes in the catchment area of Lake Planina pri jezeru (1430 m a.s.l.) by using mineralogical, geochemical and palynological ...
Nina Caf   +8 more
wiley   +1 more source

Seasonal velocity patterns provide insights for the soft-bed subglacial hydrology continuum. [PDF]

open access: yesCommun Earth Environ
Hart JK   +5 more
europepmc   +1 more source

Human phase‐I metabolism of three synthetic cannabinoids bearing a cumyl moiety and a cyclobutyl methyl or norbornyl methyl tail: Cumyl‐CBMEGACLONE, Cumyl‐NBMEGACLONE, and Cumyl‐NBMINACA

open access: yesDrug Testing and Analysis, EarlyView.
The human phase‐I metabolism of three SCRAs bearing a cumyl moiety and a CBM or NBM tail, based on LC‐qToF‐MS data of authentic urine specimens. Abstract Synthetic cannabinoid receptor agonists (SCRAs) continue to show high prevalence on the new psychoactive substances drug market.
Arianna Giorgetti   +6 more
wiley   +1 more source

Insights Into Cryoconite Community Dynamics on the Alpine Glacier Throughout the Ablation Season. [PDF]

open access: yesEcol Evol
Jaroměřská TN   +11 more
europepmc   +1 more source

Improving the Determination of Carbon Isotope Ratios of Endogenous Steroids Found in Human Serum

open access: yesDrug Testing and Analysis, EarlyView.
A method employing high‐performance liquid chromatographic sample cleanup to determine the carbon isotope ratios of steroids found in human serum was developed and fully validated. A reference population encompassing more than 120 male and female athlete samples was investigated in order to establish population‐based thresholds for Δ‐values.
Thomas Piper, Mario Thevis
wiley   +1 more source

Rapid Analytical Method for Quantification of Gamma‐Hydroxybutyrate (GHB) in Hair by UPLC‐MS/MS

open access: yesDrug Testing and Analysis, EarlyView.
A rapid and simple UPLC‐MS/MS method for quantification of GHB in 10 mg of hair was developed. The method was satisfactorily validated, showing a linear range of 0.5–50 ng/mg, which allows us to quantify endogenous and exogenous GHB concentrations.
Miriam Blanco‐Ces   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy