Results 11 to 20 of about 1,752,062 (351)

Selection on selected records [PDF]

Genetics Selection Evolution, 1983
On considère le problème de la sélection d’individus pour leurs valeurs génétiques additives et de l’estimation de ces valeurs. La sélection est basée sur un vecteur d’observations faites sur un ensemble d’individus eux-mêmes issus d’une sélection sur un certain vecteur d’observations.
openaire   +6 more sources

Selecting Selective Suppressors of Selective Uptake [PDF]

Chemistry & Biology, 2003
Scavenger receptor BI (SR-BI) is a high-density lipoprotein (HDL) receptor that mediates the selective uptake of HDL cholesteryl ester (CE) and the bidirectional flux of free cholesterol (FC). The identification of selective uptake inhibitors holds promise for mechanistic studies of SR-BI and for discovery of pharmaceuticals useful in therapy of ...
openaire   +2 more sources

How cinchona alkaloid-derived primary amines control asymmetric electrophilic fluorination of cyclic ketones. [PDF]

, 2014
The origin of selectivity in the α-fluorination of cyclic ketones catalyzed by cinchona alkaloid-derived primary amines is determined with density functional calculations.
Houk, KN, Lam, Yu-hong
core   +2 more sources

Selecting the Selection

, 2016
Modern saturation-based Automated Theorem Provers typically implement the superposition calculus for reasoning about first-order logic with or without equality. Practical implementations of this calculus use a variety of literal selections and term orderings to tame the growth of the search space and help steer proof search.
Hoder, Kryštof, Reger, Giles, Suda, Martin, Voronkov, Andrei   +3 more
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Z-Selective Homodimerization of Terminal Olefins with a Ruthenium Metathesis Catalyst [PDF]

, 2011
The cross-metathesis of terminal olefins using a novel ruthenium catalyst results in excellent selectivity for the Z-olefin homodimer. The reaction was found to tolerate a large number of functional groups, solvents, and temperatures while maintaining ...
Endo, Koji, Grubbs, Robert H., Herbert, Myles B., Keitz, Benjamin K.   +3 more
core   +2 more sources

Consistent and Flexible Selectivity Estimation for High-dimensional Data

, 2020
Selectivity estimation aims at estimating the number of database objects that satisfy a selection criterion. Answering this problem accurately and efficiently is essential to many applications, such as density estimation, outlier detection, query ...
Ishikawa, Yoshiharu, Makoto, Onizuka, Mao, Rui, Qin, Jianbin, Wang, Wei, Wang, Yaoshu, Xiao, Chuan, Zhang, Rui   +7 more
core   +1 more source

Polyseme Selection, Lemma Selection and Article Selection

Lexikos, 2017
In linguistics, more specifically in the field of lexical semantics, a lot of attention has been given to polysemy and homonymy. The identification of and distinction between polysemy and homonymy should not be regarded as unproblematic. The lexicographic practice has tradi-tional ways of presenting and treating polysemy and homonymy.
Bergenholtz, Henning, Gouws, Rufus H.
openaire   +7 more sources

A New Class of High-Selectivity Bandpass Filters With Constant Bandwidth and 5:1 Bandwidth Tuning Ratio

IEEE Access
This paper presents a design for compact bandpass filters (BPFs) that feature high selectivity. This high selectivity is achieved through the use of open-/short-circuited coupled-line segments at the filter’s input and output and a pair of ...
Photos Vryonides, Salman Arain, Abdul Quddious, Dimitra Psychogiou, Symeon Nikolaou   +4 more
doaj   +1 more source

Ação transovariana de lufenuron (50 g/l) sobre adultos de Spodoptera Frugiperda (j. e. smith) (Lepidoptera: Noctuidae) e seu efeito sobre o parasitóide de ovos Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) Transovarian action of lufenuron on adults of Spodoptera frugiperda (J. E. Smith) (Lepidoptera: Noctuidae) and its effect on the parasitoid Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)

Ciência e Agrotecnologia, 2004
Avaliaram-se a ação transovariana do lufenuron em Spodoptera frugiperda e sua seletividade ao parasitóide de ovos Trichogramma pretiosum. Casais da praga foram isolados em gaiolas de PVC e alimentados com solução de mel a 10% na testemunha, e nos outros ...
Dirceu Pratissoli, Robson Thomaz Thuler, Fabrício Fagundes Pereira, Edvaldo Fialho dos Reis, Andrea Torres Ferreira   +4 more
doaj   +1 more source

Molecular Dynamics-Assisted Discovery of Novel Phosphodiesterase-5 Inhibitors Targeting a Unique Allosteric Pocket

Molecules
Phosphodiesterase-5 (PDE5) is a potent therapeutic target for the treatment of male erectile dysfunction and pulmonary arterial hypertension with several drugs available on the market.
Weihao Luo, Runduo Liu, Xinlin Cai, Qian Zhou, Chen Zhang   +4 more
doaj   +1 more source