Results 1 to 10 of about 676,436 (269)
Synthesis of novel phthalimido oxime pseudoesters and evaluation of their cytotoxicity [PDF]
Journal of the Serbian Chemical Society, 2020 A series of novel optically pure oxime pseudoesters derivatives were synthesized by the reaction of substitute keto oximes with various N-substituted α-amino acids chlorides in the presence of triethylamine and dichloromethane at 0°C, and their ...
Mehrez Asma +4 more
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Molecules, 2021 We describe a mechanism-guided discovery of a synthetic methodology that enables the preparation of aromatic amides from 2-bromo-2,2-difluoroacetamides utilizing a copper-catalyzed direct arylation.
Satenik Mkrtchyan +4 more
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The Effect of Group type and Mediation type in Group Dynamic Assessment on the Improvement of Iranian Homogeneous and Heterogeneous EFL Learners' Listening Comprehension [PDF]
Journal of Language Horizons, 2023 Based on Vygotsky's concept of Zone of Proximal Development, dynamic assessment (DA) has at its core the integration of assessment and instruction through mediation. DA is practiced either individually or collectively. In group-dynamic assessment (G-DA),
Nader Safaei Asl +2 more
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Liutex-Represented Vortex Spectrum in Turbulence
Entropy, 2022 The Liutex vector is new quantity introduced to represent the rigid-body rotation part of fluid motion and thus to define and identify vortices in various flows. In this work, the intermittency and power-law similarity of the Liutex vector in homogeneous,
Bowen Yan, Yiqian Wang, Chaoqun Liu
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Homogenous rivers, homogenous faunas [PDF]
Proceedings of the National Academy of Sciences, 2007 Habitat change and invasions of alien species are usually listed as the two biggest causes of biodiversity loss. When the two coincide, the results can be devastating, because altered habitat often favors alien species adapted to the changed conditions.
Peter B, Moyle, Jeffrey F, Mount
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Risks, 2021 In this paper, we derive a closed-form expression of the tail probability of the aggregate discounted claims under homogeneous, non-homogeneous and mixed Poisson risk models with constant force of interest by using a general dependence structure between ...
Franck Adékambi, Kokou Essiomle
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Are cryptocurrencies homogeneous? [PDF]
European Financial Management, 2019 AbstractThis article investigates if cryptocurrencies returns' are similarly affected by a selection of demand‐ and supply‐side determinants. Homogeneity among cryptocurrencies is tested via a least absolute shrinkage and selection operator (LASSO) model where determinants of Bitcoin returns are applied to a sample of 12 cryptocurrencies.
Bengtsson, Elias, Gustafsson, Frida
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Development of heterogeneous catalyst from assorted periwinkle snail shells for sustainable biodiesel synthesis [PDF]
E3S Web of Conferences, 2023 Owing to the environmental friendliness of biodiesel compared to fossil fuels, its application in internal combustion engines has gained wide recognition.
Ogunkunle Oyetola +1 more
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“Homogenization with non‐homogeneous plastic flow”
International Journal for Numerical and Analytical Methods in Geomechanics, 2023 AbstractThis paper provides the solution of a homogenization model that simultaneously considers the plastic and elastic strain fields in a single analytical formulation. In addition, the authors aim to decouple plastic flows triggered in the inclusions, in the matrix at the interfaces with the inclusions, and in the matrix at a large distance from the
Anglade, Elsa +3 more
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Plastic flow of isotropic rigid body at uniform deformation
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021 The mathematical analysis of plastic flow processes under uniform plane, axisymmetric and volumetric deformation is carried out. The analysis is based on the external shape change of the body, which determines the movement of material points. It is shown
O. M. Dyakonov
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