Results 61 to 70 of about 91,295 (314)
Periodic solutions for neutral functional differential equations with impulses on time scales
Electronic Journal of Differential Equations, 2012 Let $mathbb{T}$ be a periodic time scale. We use Krasnoselskii's fixed point theorem to show that the neutral functional differential equation with impulses $$displaylines{ x^{Delta}(t)=-A(t)x^sigma(t)+g^Delta(t,x(t-h(t)))+f(t,x(t),x(t-h(t))),quad ...
Yongkun Li, Xiaoyan Dou, Jianwen Zhou
doaj
Mathematics, 2019 In this paper, a class of fractional complex networks with impulses and reaction−diffusion terms is introduced and studied. Meanwhile, a class of more general network structures is considered, which consists of an instant communication topology and
Xudong Hai +3 more
doaj +1 more source
Are PIIGS so different? An empirical analysis of demand and supply shocks [PDF]
Panoeconomicus, 2017 This paper analyses responses to supply and demand shocks in PIIGS countries. We compare the results obtained for PIIGS with those of Germany and the USA, and also with those of France, which despite its government’s efforts demonstrate ...
Syssoyeva-Masson Irina +1 more
doaj +1 more source
Impulsive Reaction-Diffusion Delayed Models in Biology: Integral Manifolds Approach
Entropy, 2021 In this paper we study an impulsive delayed reaction-diffusion model applied in biology. The introduced model generalizes existing reaction-diffusion delayed epidemic models to the impulsive case.
Gani Stamov +2 more
doaj +1 more source
The Archival Impulse and the Editorial Impulse [PDF]
Variants, 2019 There is no firm, outside vantage-point from which to survey and thus to define archive and edition as securely differentiated categories. As readers we inhabit the same textual field as the approaches to documents and texts that we seek to define. To record is first to read and analyse sufficiently for the archival purpose; to interpret is first to ...
openaire +1 more source
Random Fuzzy Differential Equations with Impulses
, 2017 We consider the random fuzzy differential equations (RFDEs) with impulses. Using Picard method of successive approximations, we shall prove the existence and uniqueness of solutions to RFDEs with impulses under suitable conditions. Some of the properties
Ho Vu
core +1 more source
From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
Achromatic impulses unmask L- and M-cone adaptive mechanisms
, 2001 The mechanisms underlying the adaptive response for achromatic impulses seen on achromatic fields were investigated. Foveal thresholds were measured for a static probe-impulse under two conditions of adaptation.Thresholds were obtained under gain-clamped
Zele, Andrew J. +3 more
core +1 more source
Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis
FEBS Letters, EarlyView.Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee +7 more
wiley +1 more source
Sudden commencement event of 17 April 2002: Aspects of the geomagnetic response at low latitudes [PDF]
, 2005 An analysis of a sudden commencement (SC) manifestation reveals a significant contribution of the polar current system which influences the long-term behavior of the H component at low-latitude ground stations located in the subsolar sector. A transition
Zhang, T.L. +11 more
core +1 more source