Results 81 to 90 of about 5,220,571 (262)

On a Dimension Formula for Twisted Spherical Conjugacy Classes in Semisimple Algebraic Groups [PDF]

open access: yes, 2010
Let $G$ be a connected semisimple algebraic group over an algebraically closed field of characteristic zero, and let $\th$ be an automorphism of $G$. We give a characterization of $\th$-twisted spherical conjugacy classes in $G$ by a formula for their ...
Lu, Jiang-Hua
core  

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling   +16 more
wiley   +1 more source

SPG4 and Dementia: Expanding the Clinical Spectrum

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Hereditary spastic paraplegia (HSP) is a group of disorders characterized by progressive spasticity and lower limb weakness, with mutations in SPG4/SPAST being the most common cause. Detailed studies and clinical and molecular comparisons across different populations are missing.
Emanuele Panza   +19 more
wiley   +1 more source

Top-Skills im Wandel

open access: yeso-bib. Das offene Bibliotheksjournal
Die Kompetenzanforderungen an Bewerber*innen für Positionen im höheren Dienst an wissenschaftlichen und öffentlichen Bibliotheken verändern sich im Zuge der digitalen Transformation dynamisch.
Inka Tappenbeck   +2 more
doaj   +1 more source

Modelling and bending analysis of a 3D-printed sandwich structure with an auxetic star-4 core [PDF]

open access: yesMATEC Web of Conferences
Quasi-static 3-point bending of additive manufactured sandwich components with auxetic star-4 cores was investigated to obtain information on the influence of geometry parameters of the auxetic structure on the stress distribution of the face sheets ...
Hartl Christoph   +2 more
doaj   +1 more source

Performance of Hybrid Direct-Sequence Time-Hopping Ultrawide Bandwidth Systems over Nakagami-m Fading Channels

open access: yes, 2007
This paper investigates and compares the performance of various ultrawide bandwidth (UWB) systems when communicating over Nakagami-m fading channels. Specifically, the direct-sequence (DS), time-hopping (TH) and hybrid direct-sequence time-hopping (DS-TH)
Ahmed, Qasim Zeeshan, Yang, Lie-Liang
core  

Quantum Cluster Theories

open access: yes, 2004
Quantum cluster approaches offer new perspectives to study the complexities of macroscopic correlated fermion systems. These approaches can be understood as generalized mean-field theories.
Hettler, M. H.   +3 more
core   +1 more source

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian   +4 more
wiley   +1 more source

Rheological Investigation of Suspensions and Ceramic Pastes: Characterization of Extrusion Properties

open access: yesKONA Powder and Particle Journal, 2014
A large number of complicated catalyst geometries are produced by extrusion of plastic ceramic materials. The demands for high precision in the forming process and adequate formability of the materials are extremely ...
Wolfgang Gleißle   +2 more
doaj   +1 more source

On Kropina Change of m-th Root Finsler Metrics [PDF]

open access: yes, 2014
In this paper, we consider Kropina change of $m$-th root Finsler metrics. We find necessary and sufficient condition under which the Kropina change of an $m$-th root Finsler metric be locally dually flat.
Peyghan, E.   +2 more
core  

Home - About - Disclaimer - Privacy