Results 171 to 180 of about 459,830 (368)
Comparative Analysis of Benchtop NMR and HPLC‐UV for Illicit Drug Mixtures
Magnetic Resonance in Chemistry, EarlyView.This study assessed benchtop NMR with Quantum Mechanical Modelling (QMM) for quantifying methamphetamine in binary and ternary mixtures. QMM achieved a root mean square error (RMSE) as low as 1.3 mg/100 mg sample, enabling simultaneous quantification of drugs, adulterants, and impurities.
Shallu Verma +3 more
wiley +1 more source
On the structure of context-sensitive grammars [PDF]
Context sensitive grammar and generation of noncontext free ...
Book, R. V.
core +1 more source
ChemistryOpen, EarlyView.Mushrooms have become a prominent focus in alternative medicine and are now the subject of increasingly detailed scientific investigation. This study explores the isolation, purification, and characterization of β‐D‐glucan from Lycoperdon pyriforme, with particular emphasis on its wound‐healing potential. The aim of this research is to isolate, purify,
Elif Yavuz‐Dokgöz +4 more
wiley +1 more source
A Context Free Grammar based Algorithm for Generating Playable Transcoding Paths of the Multimedia Presentation with Different End-to-End QoS [PDF]
, 2002 Sungmi Chon, Young-Hwan Lim
openalex +1 more source
Asymptotic distribution of motifs in a stochastic context-free grammar model of RNA folding. [PDF]
J Math Biol, 2014 Poznanović S, Heitsch CE.
europepmc +1 more source
The covering problem for linear context-free grammars
, 1976 Harry B. Hunt +2 more
openalex +1 more source
Pfold: RNA secondary structure prediction using stochastic context-free grammars [PDF]
, 2003 Bjarne Knudsen, Jotun Hein
openalex +1 more source
National Park Service staff perspectives on how climate change affects visitor use
People and Nature, EarlyView.Abstract Many public lands, including those managed by the U.S. National Park Service (NPS), have the purpose of conserving natural and cultural resources and providing opportunities for visitors to recreate in and enjoy these areas. Achieving this mission becomes more challenging as drought, flooding, increasing temperatures and other climatic change ...
Sarah Rappaport Keener +6 more
wiley +1 more source
Learning probabilistic context-free grammars from treebanks [PDF]
, 2003 Jose L. Verdú-Mas +2 more
openalex +1 more source
A Brief Writing Intervention Assists Athletes to Cope With Performance Failures
PsyCh Journal, EarlyView.ABSTRACT Significant performance failures by athletes can have detrimental psychological effects, potentially leading to maladaptive coping mechanisms, performance anxiety, and psychological distress. The current study investigated if a brief writing intervention could combat the negative impact of recalled performance failures in a sample of ...
David L. Neumann, Mikayla McInnes
wiley +1 more source