Results 181 to 190 of about 72,483 (259)

Space‐Time FEM Solution of Dynamic Contact Problem With Discontinuous Velocity for Multiple Impact of Deformed Bar Using PDAS Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A class of one‐dimensional impact and dynamic contact problems taking into account non‐smooth velocities is studied. The new space‐time finite element approximation of dynamic variational inequalities is suggested. The non‐smooth solution for the impact of an obstacle by an elastic bar and its energy conservation under persistency conditions ...
Victor A. Kovtunenko, Adrien Petrov, Yves Renard   +2 more
wiley   +1 more source

Abstracting It All: The Soviet Institute of Scientific Information (VINITI) and the Promise of Centralisation, 1952-1977. [PDF]

Minerva
Hammarfelt B, Dahlin J.
europepmc   +1 more source

Veronica paczoskiana is no more than a pine forest ecotype of V. spicata that evolved independently in forest‐steppes of Ukraine and the Altai region

Nordic Journal of Botany, EarlyView.
The Eurasian steppe area has been a dynamic vegetation biome during the Pleistocene with its repeated cycles of forest advances and retreats. Such a scenario allows the evolution of ecotypes at the ecotone with the potential for parallel evolution in different parts of the distribution area.
Dirk C. Albach, Gulzar Khan, Zoya M. Tsymbalyuk, Lyudmila M. Nitsenko, Sergei L. Mosyakin   +4 more
wiley   +1 more source

Genomic Data Suggests Pathways of Modern White Poplar (<i>Populus alba</i> L.) Range Formation in the Postglacial Era. [PDF]

Plants (Basel)
Gladysh NS, Popchenko MI, Kovalev MA, Volodin VV, Krasnov GS, Bogdanova AS, Karpov DS, Bolsheva NL, Kudryavtseva AV.   +8 more
europepmc   +1 more source

Navigating the Rapids: How Non‐Governmental Organization Managers Develop Strategic Adaptation to Repressive Political Environments

Public Administration and Development, EarlyView.
ABSTRACT This article explores the management adaptation strategies non‐governmental organizations (NGOs) managers employ in order to operate in repressive political environments. It answers the question: how do NGO managers initiate, manage and sustain internal change when the political/regulatory environment changes?
Charles Kaye‐Essien, Shahjahan Bhuiyan, Ghadeer Ali   +2 more
wiley   +1 more source

Holothuroidea Have Spongy Bodies Homologous to Spongy Bodies of Echinoidea and Tiedemann's Bodies of Asteroidea. [PDF]

Dokl Biol Sci
Ezhova OV, Malakhov VV.
europepmc   +1 more source

Globalizing Comparative Public Administration With Integrative Contextualization: State Autonomy in the Developmental Path of Hong Kong and Singapore

Public Administration and Development, EarlyView.
ABSTRACT The lack of a common variable for comparison has been a major obstacle to the development of Comparative Public Administration (CPA). State autonomy enables an integrative contextualization approach, allowing both the analysis of contextual individual country experiences and the generation of generalized comparable knowledge.
Wilson Wong
wiley   +1 more source

A century of assessment: A systematic review of biothreat risk assessments. [PDF]

Risk Anal
Atkerson C, Parker MT.
europepmc   +1 more source

Cretaceous Insects From Labrador. 4. A New Family of Beetles (Coleoptera: Archostemata)

Psyche: A Journal of Entomology, 1969
A. G. Ponomarenko
doaj   +1 more source

Radiation Doses and Lifetime Attributable Risk of Cancer in Sweden after the Chernobyl Nuclear Power Plant Accident. [PDF]

Health Phys
Tondel M, Gabrysch K, Isaksson M, Rääf C.   +3 more
europepmc   +1 more source