Results 221 to 230 of about 466,701 (287)

Origin and Interpretation of Low Methamphetamine Levels Found in Amphetamine‐Positive Urine Samples: Support for Methylation of Amphetamine as a Minor Metabolic Pathway

open access: yesDrug Testing and Analysis, EarlyView.
A low urinary concentration of methamphetamine less than 1% of the amphetamine level may not necessarily indicate polydrug use. Instead, it could result from N‐methylation of amphetamine. Chiral analysis of both amphetamines is an effective method for distinguishing between illicit use and therapeutic sources in positive drug screening results ...
Anders Helander   +2 more
wiley   +1 more source

Guidelines for Quality Assurance and Accreditation of MOOCs [PDF]

open access: yes, 2016
Commonwealth of Learning,   +1 more
core  

Biosynthesis and Identification of Clenbuterol Metabolites in Urine and In Vitro Microsome Incubation Samples Using UHPLC‐Q‐Exactive Orbitrap Mass Spectrometry: A Comparison Between Human and Bovine Metabolism

open access: yesDrug Testing and Analysis, EarlyView.
Clenbuterol metabolism was studied in bovine and human urine using LC‐Q‐Exactive‐Orbitrap MS; eight metabolites were identified in human and bovine samples as well as a novel N‐methylated form. Four urinary metabolites specific to cattle were detected and identified.
Anuar Gómez‐Tagle   +5 more
wiley   +1 more source

Reflections on Using the Eating Disorders Examination to Assess Eating Disorder Pathology in Queer Men

open access: yesInternational Journal of Eating Disorders, EarlyView.
ABSTRACT Objective Queer men face potent appearance‐related pressures that exacerbate their eating disorder risk. While the Eating Disorder Examination (EDE) is a widely used eating disorder assessment, queer men may experience unique motivations for disordered eating that may impact its administration in this population. To generate practical guidance
Emma Austen   +8 more
wiley   +1 more source

Mapping the Ontology and Epistemology of Research Into Forest Carbon Offsetting in Developing Countries

open access: yesEnvironmental Policy and Governance, EarlyView.
ABSTRACT In this paper, we consider knowledge cumulation in one of the most polarized areas of environmental governance research: forest carbon offsetting in developing countries. Our specific contribution is a critical review of the ontological and epistemological positioning of 31 studies published in the peer‐reviewed literature on forest carbon ...
Mark Purdon, Patrick Byakagaba
wiley   +1 more source

Home - About - Disclaimer - Privacy