نتایج جستجو برای: dhp

تعداد نتایج: 744  

2004
SILVIA FERRARI ROBERT F. STENGEL

Editor’s Summary: This chapter provides an overview of model-based adaptive critic designs, including background, general algorithms, implementations, and comparisons. The authors begin by introducing the mathematical background of model-reference adaptive critic designs. Various ADP designs such as Heuristic Dynamic Programming (HDP), Dual HDP (DHP), Globalized DHP (GDHP), and Action-Dependent...

Journal: :Remote Sensing 2021

The in situ leaf area index (LAI) measurement plays a vital role calibrating and validating satellite LAI products. Digital hemispherical photography (DHP) is widely used forest method. There have been many software programs encompassing variety of algorithms to estimate from DHP. However, there no conclusive study for an accuracy comparison among them, due the difficulty acquiring reference va...

Current researches have showed that N3, N5-diaryl-2, 6-dimethyl -1, 4-dihydropyrine-3, 5- dicarboxamide analogues demonstrate notable anti-tubercular activity. In this study, Hantzsch condensation was used to design and synthesize new analogues of dihydropyridine (DHP). Different diary carboxamides were inserted at positions 3 and 5 of the DHP ring. 4(5)-chloro-2-ethyl-5(4)-imidazolyl moiety wa...

Journal: :The Journal of antibiotics 1996
G Burton N J Clear A J Eglington A W Guest E Hunt A Naylor M J Pearson A K Takle

A new series of carbapenems, having a saturated or partially unsaturated heterocycle at C-2, has been synthesised. The in vitro antibacterial activity of these compounds and their stability to human dehydropeptidase-1 (DHP-1) are described. The stereochemistry of the C-2 side-chain and the presence of a double bond in the heterocycle were shown to have significant effects on the stabilities of ...

2016
Maryam Iman Asghar Davood Mahboubeh Lotfinia Golnoush Dehqani Soroush Sardari Parisa Azerang Mohsen Amini

Current researches have showed that N3, N5-diaryl-2, 6-dimethyl -1, 4-dihydropyrine-3, 5- dicarboxamide analogues demonstrate notable anti-tubercular activity. In this study, Hantzsch condensation was used to design and synthesize new analogues of dihydropyridine (DHP). Different diary carboxamides were inserted at positions 3 and 5 of the DHP ring. 4(5)-chloro-2-ethyl-5(4)-imidazolyl moiety wa...

Journal: :Circulation research 1993
A Welling Y W Kwan E Bosse V Flockerzi F Hofmann R S Kass

At least four calcium channel subtypes (P, T, N, and L) have now been classified on the basis of their biophysical and/or pharmacological properties. L-type channels, a channel family particularly important to physiological function of the cardiovascular system, are identified by their slow voltage- and calcium-dependent inactivation as well as their sensitivity to dihydropyridine (DHP) calcium...

Journal: :Eng. Appl. of AI 2008
Jung-Wook Park Ronald G. Harley Ganesh K. Venayagamoorthy Gilsoo Jang

This paper presents the design of an infinite horizon nonlinear optimal neurocontroller that replaces the conventional automatic voltage regulator and the turbine governor (CONVC) for the control of a synchronous generator connected to an electric power grid. The neurocontroller design uses the novel optimization neuro-dynamic programming algorithm based on dual heuristic programming (DHP), whi...

Journal: :Molecular pharmacology 2000
G H Hockerman N Dilmac T Scheuer W A Catterall

The benzothiazepine diltiazem blocks ionic current through L-type Ca(2+) channels, as do the dihydropyridines (DHPs) and phenylalkylamines (PAs), but it has unique properties that distinguish it from these other drug classes. Wild-type L-type channels containing alpha(1CII) subunits, wild-type P/Q-type channels containing alpha(1A) subunits, and mutants of both channel types were transiently ex...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Elizabeth L Scholtz Shweta Krishnan Barry A Ball C Jo Corbin Benjamin C Moeller Scott D Stanley Karen J McDowell Austin L Hughes Donald P McDonnell Alan J Conley

One of the most widely accepted axioms of mammalian reproductive biology is that pregnancy requires the (sole) support of progesterone, acting in large measure through nuclear progesterone receptors (PRs) in uterine and cervical tissues, without which pregnancy cannot be established or maintained. However, mares lack detectable progesterone in the latter half of pregnancy. Instead of progestero...

Journal: :The Journal of biological chemistry 1988
F C Chang M M Hosey

We have purified putative L-type Ca2+ channels from chick heart by virtue of their associated high affinity receptors for the Ca2+ channel effectors, dihydropyridines (DHPs), and phenylalkylamines (PAAs). A peptide of 185,000-190,000 daltons was found to comigrate with the peak of DHP binding activity during purification through two successive cycles of lectin affinity chromatography and sucros...

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