Results 121 to 130 of about 405,960 (378)

Development of method of qualitative analysis of bird cherry fruit for inclusion in the monograph of state pharmacopoeia of Ukraine

Annals of Mechnikov's Institute, 2020
Introduction.Bird cherryPadusaviumMill, Rosaceae,is widespread in Ukraine, especially in forests and forest-steppe areas. Bird cherry fruits have long been used in medicine and is a valuable medicinal raw materials. They stated to posess astringent, anti-
L Lenchyk, A Kotov, V Kyslychenko, E Kotova   +3 more
doaj  

On the temperature dependence of the interaction-induced entanglement

, 2005
Both direct and indirect weak nonresonant interactions are shown to produce entanglement between two initially disentangled systems prepared as a tensor product of thermal states, provided the initial temperature is sufficiently low.
A. Peres, H. Carmichael, Michael Khasin, P. Horodecki, Ronnie Kosloff, S. Scheel, T. Durt   +6 more
core   +1 more source

Evaluation of Different Detection and Identification Methods of Intact Tetrahydro‐Methyltestosterone Sulfate Metabolites in Doping Control

Drug Testing and Analysis, EarlyView.
The micro‐scale synthesis of the six out of eight possible tetrahydro‐methyltestosterone sulfate metabolites was performed, and the synthesized materials were used as analytical standards. The analysis of post‐administration sample extracts from methyltestosterone excretion studies against these standards provides further experimental proof for their ...
Yiannis S. Angelis, Olga Goula, Polyxeni Kiousi, Panagiotis Sakellariou   +3 more
wiley   +1 more source

Assessment and Control of Organic Impurities in Medicinal Products: A Review

Регуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. The determination of impurities is a key requirement for the quality assessment of medicines because impurities can significantly impact the quality and therapeutic effectiveness.
O. A. Matveeva, E. L. Kovaleva, A. A. Ponomarenko   +2 more
doaj   +1 more source

STUDY OF CHROMATOGRAPHIC FINGERPRINT OF FLAVONOID COMPOUNDS OF THE BUR-MARIGOLD HERB

Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2021
The main aim of this work was to determine the possibility of reliable identification of phenolic compounds, in particular flavonoids, specific for very popular type of medicinal plant material Bidens (B. tripartita, B. frondosa, B.
ELINA E. KOTOVA, SEMEN A. KOTOV, ANDRIY G. KOTOV   +2 more
doaj  

TLC-densitometric identification of valproic acid

, 2022
Wioletta Parys, Alina Pyka
openalex   +1 more source

Synthesis and Biological Profile of Substituted Pyrrolidinyl Carboxamides for Acyl‐ACP Thioesterase Inhibition

European Journal of Organic Chemistry, EarlyView.
The work outlined herein covers a series of novel herbicidal lead structures that possess a pyrrolidinyl pyrazole carboxamide scaffold as a key structural feature, carrying further substituted benzyl side chains. Based on scaffold hopping approaches from known fungicidal and herbicidal compounds and utilizing an optimized synthetic approach, a broader ...
Elisabeth Asmus, Martin Annau, Neanne Alnafta, David M. Barber, Guido Bojack, Birgit Bollenbach‐Wahl, Ralf Braun, Ronald W. Brown, Luke R. Churchman, Christine Dörnbrack, Andrew Earl, Tyler Fahrenhorst‐Jones, Jörg Freigang, Claudia Hartfiel, Ines Heinemann, Arnim Köhn, Bernd Laber, Michael C. McLeod, Catherine S. Meister, Gudrun Lange, Luka Posa, Shaun Rees, Dirk Schmutzler, Anna M. Reingruber, Jens Frackenpohl   +24 more
wiley   +1 more source

Mobile Phase Optimization in Thin Layer Chromatography (TLC) [PDF]

, 1997
Claudia Cimpoiu, T. Hodisan
openalex   +1 more source

Transmission Through Carbon Nanotubes With Polyhedral Caps

, 2001
We study electron transport between capped carbon nanotubes and a substrate, and relate the transmission probability to the local density of states in the cap.
B. I. Yakobson, C. Caroli, D. L. Carroll, H. Dai, M. B. Nardelli, M. Fujita, M. P. Anantram, M. P. Anantram, M. S. Dresselhaus, P. F. Bagwell, P. Kim, P. Singha Deo, R. Tamura, S. Datta, S. Iijima, S. S. Wong, S. S. Wong, T. R. Govindan, U. Fano, V. P. Dravid, Y. Meir, Z. Zhao   +21 more
core   +1 more source

Additives Promote Divergent Reactivity in Photolytic Deoxygenation and Lactonization Reactions of Cobalt Alkoxycarbonyls

European Journal of Organic Chemistry, EarlyView.
We report a carbonylation‐homolysis process to access acyl radicals that can undergo decarboxylation or cyclization onto tethered alkenes. In both cases, ligands and additives are shown to influence the outcome to give saturated or unsaturated products, in some cases with isomerization of the initial products.
Jacob N. Hackbarth, Dana R. Chambers, Cory T. Ludwig, Tyler K. Brown, David B. C. Martin   +4 more
wiley   +1 more source