Results 71 to 80 of about 2,884,547 (321)
On the Veldkamp Space of GQ(4, 2)
, 2010 The Veldkamp space, in the sense of Buekenhout and Cohen, of the generalized quadrangle GQ(4, 2) is shown not to be a (partial) linear space by simply giving several examples of Veldkamp lines (V-lines) having two or even three Veldkamp points (V-points)
Brouwer A. E. +4 more
core +2 more sources
Generalized Common Fixed Point Results with Applications [PDF]
Abstract and Applied Analysis, 2014 We obtained some generalized common fixed point results in the context of complex valued metric spaces. Moreover, we proved an existence theorem for the common solution for two Urysohn integral equations. Examples are presented to support our results.
Marwan Amin Kutbi +3 more
openaire +3 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction Cognitive impairment and exercise intolerance are common in dialysis patients. Cerebral perfusion and oxygenation play a major role in both cognitive function and exercise execution; HD session per se aggravates cerebral ischemia in this population. This study aimed to compare cerebral oxygenation and perfusion at rest and in mild
Marieta P. Theodorakopoulou +10 more
wiley +1 more source
Common fixed points for Lipschitzian semigroups
Electronic Journal of Differential Equations, 2006 Summary: \textit{T.--C.\ Lim} and \textit{H.--K.\ Xu} [Nonlinear Anal., Theory Methods Appl.\, 25, No.\,11, 1231--1235 (1995; Zbl 0845.47045)] established a fixed point theorem for uniformly Lipschitzian mappings in metric spaces with uniform normal structure. Recently, \textit{Y.--Y.\,Huang} and \textit{C.--C.\,Hong} [Int.\, J.\, Math.\, Math.\, Sci.\,
Samir Lahrech +2 more
openaire +2 more sources
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Chronic kidney disease is a growing public health problem worldwide, and the number of patients requiring renal replacement therapy is steadily increasing. Türkiye has experienced a similar rise in both the incidence and prevalence of renal replacement therapy over the past decades; however, national‐level projections of future ...
Arzu Akgül +2 more
wiley +1 more source
Convergence Theorems of Common Fixed Points for Pseudocontractive Mappings
Fixed Point Theory and Applications, 2008 We consider an implicit iterative process with mixed errors for a finite family of pseudocontractive mappings in the framework of Banach spaces. Our results improve and extend the recent ones announced by many others.
Hao Yan
doaj +2 more sources
Common fixed points for lipschitzian semigroup
Electronic Journal of Differential Equations, 2006 Lim and Xu [4] established a fixed point theorem for uniformly Lipschitzian mappings in metric spaces with uniform normal structure. Recently, Huang and Hong [1] extended hyperconvex metric space version of this theorem, by showing a common fixed point ...
Samir Lahrech +2 more
doaj
Conventional versus network dependence panel data gravity model specifications [PDF]
, 2019 Past focus in the panel gravity literature has been on multidimensional fixed effects specifications in an effort to accommodate heterogeneity. After introducing conventional multidimensional fixed effects, we find evidence of cross-sectional dependence
Fischer, Manfred M., LeSage, James P.
core
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Mapping the evolution of mitochondrial complex I through structural variation
FEBS Letters, EarlyView.Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin +2 more
wiley +1 more source