Results 171 to 180 of about 6,654,991 (280)
Investigations Into the Metabolism and Elimination of Tesofensine in Human Urine
Drug Testing and Analysis, Volume 18, Issue 9, Page 1163-1173, September 2026.This study investigated tesofensine metabolism and urinary elimination after a single 483 μg intake via a dietary supplement. In six volunteers, urine was collected up to 659 h. LC‐HRMS/MS identified four tentative metabolites; maximum urinary concentrations reached 4 ng/mL within 4–48 h.
O. Krug, A. Thomas, M. Thevis
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Drug Testing and Analysis, Volume 18, Issue 9, Page 1157-1162, September 2026.An ultrasensitive LC‐MS/MS method for detecting testosterone esters (T‐esters) in urine at sub–pg/mL levels is presented. This approach, employing Girard P derivatization, provides the first evidence of T‐esters' trace‐level detectability in human urine.
Daniel Pecher +3 more
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Drug Testing and Analysis, Volume 18, Issue 9, Page 1220-1224, September 2026.Box and whiskers plots show the distributions of serum testosterone (T), dihydrotestosterone (DHT), androstenedione (A4), and the ratios of T/FDHT and T/A4. ABSTRACT Detection of androgen doping relies on mass spectrometry‐based methods to detect natural endogenous and exogenous androgens in urine and serum. To distinguish exogenous administration from
D. J. Handelsman, S. Bermon
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Invasive mammals disrupt sea–land nutrient inputs over 169 years on subtropical oceanic islands
Ecosphere, Volume 17, Issue 9, September 2026.Abstract Invasive mammals have severely impacted oceanic islands, reducing or extirpating seabird populations and driving the collapse of nutrient flows with lasting ecosystem effects. We investigated these dynamics on contrasting subtropical oceanic islands in the South Pacific: Rangitāhua, a large island where goats, cats, and rats caused the ...
M. J. Rayner +23 more
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Earthquake Engineering &Structural Dynamics, Volume 55, Issue 11, Page 2760-2780, September 2026.ABSTRACT This study investigates the seismic response of moment‐resisting frames retrofitted with a stepping rocking wall, with emphasis on weak‐story mitigation and residual drift reduction under both ordinary and pulse‐like ground motions. Nonlinear response‐history analyses are conducted on 9‐story and 20‐story SAC Los Angeles frames.
Mehrdad Aghagholizadeh
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Memory and language risk assessment with Wada test in patients candidates for epilepsy surgery. [PDF]
Rev NeurolJaramillo-Jiménez E +8 more
europepmc +1 more source
Food and Energy Security, Volume 15, Issue 5, September/October 2026.ABSTRACT Irrigation plays an essential role for crop production, but unreasonable irrigation is accelerating the depletion of water resources and exacerbating nitrogen (N) losses. Optimal water management (OWM) is critical for improving crop yield and decreasing N losses.
Xingshuai Tian +4 more
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Characterization of structural features of food molten‐globule state proteins: An overview
Food Biomacromolecules, Volume 3, Issue 3, Page 706-717, September 2026.Abstract During food processing, pH, ionic strength, and temperature drive conformational transitions from native states to partially folded intermediates and fully unfolded states. The molten‐globule (MG) state typically preserves substantial secondary structure but has relaxed tertiary packing, thereby modulating protein solubility, emulsifying ...
Han Peng +4 more
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