Results 91 to 100 of about 5,777,110 (367)

Dissecting the Simultaneous Extracellular/Intracellular Contributions to Cr(VI) Reduction under Aerobic and Anaerobic Conditions Using the Newly Isolating Cr(VI)-Reducing Bacterium of Pseudomonas sp. HGB10

open access: yesMicroorganisms
Quantifying extracellular and intracellular contributions to Cr(VI) reduction is crucial for understanding bacterial Cr(VI)-reduction mechanisms. However, this contribution under different oxygen conditions remains largely unexplored.
Shenglei Chen   +4 more
doaj   +1 more source

Extracellular space diffusion and extrasynaptic transmission [PDF]

open access: yesPhysiological Research, 2008
The diffusion of neuroactive substances in the extracellular space (ECS) plays an important role in short- and long-distance communication between nerve cells and is the underlying mechanism of extrasynaptic (volume) transmission. The diffusion properties of the ECS are described by three parameters: 1. ECS volume fraction alpha (alpha=ECS volume/total
Eva Syková, L Vargová
openaire   +2 more sources

Dynamic Moment Analysis of the Extracellular Electric Field of a Biologically Realistic Spiking Neuron [PDF]

open access: yes, 2007
Based upon the membrane currents generated by an action potential in a biologically realistic model of a pyramidal, hippocampal cell within rat CA1, we perform a moment expansion of the extracellular field potential.
Koch, Christof, Milstein, J. N.
core   +3 more sources

C‐mannosylation promotes ADAMTS1 activation and secretion in human testicular germ cell tumor NEC8 cells

open access: yesFEBS Letters, EarlyView.
C‐mannosylation is a unique form of protein glycosylation. In this study, we demonstrated that ADAMTS1 is C‐mannosylated at Trp562 and Trp565 in human testicular germ cell tumor NEC8 cells. We found that C‐mannosylation of ADAMTS1 is essential for its secretion, processing, enzymatic activity, and ability to promote vasculogenic mimicry. These findings
Takato Kobayashi   +5 more
wiley   +1 more source

A Space‐Time Conversion Vehicle for Programmed Multi‐Drugs Delivery into Pancreatic Tumor to Overcome Matrix and Reflux Barriers

open access: yesAdvanced Science, 2022
The numerous biological barriers, which limit pharmacotherapy of pancreatic carcinoma, including inadequate drug accumulation in the tumor environment, a dense extracellular matrix (ECM) and efficient drug‐efflux mechanisms, illustrate the requirement of
Taotao Huo   +9 more
doaj   +1 more source

Localization of Na pumps in the tracheal epithelium of the dog. [PDF]

open access: yes, 1979
Binding of [3H]ouabain by the dog's tracheal epithelium shows a nonspecific component depending linearly on ouabain concentration, and a specific saturable component with a Km of 10(-7) M.
Basbaum, CB, Widdicombe, JH, Yee, JY
core  

A control algorithm for autonomous optimization of extracellular recordings [PDF]

open access: yes, 2006
This paper develops a control algorithm that can autonomously position an electrode so as to find and then maintain an optimal extracellular recording position.
Burdick, Joel W., Nenadic, Zoran
core   +2 more sources

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

open access: yesFEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

A three-dimensional mathematical model for the signal propagation on a neuron’s membrane.

open access: yesFrontiers in Computational Neuroscience, 2015
In order to be able to examine the extracellular potential's influence on network activity and to better understand dipole properties of the extracellular potential, we present and analyze a three-dimensional formulation of the cable equation which ...
Konstantinos eXylouris, Gabriel eWittum
doaj   +1 more source

Mitotic Activity in Glioblastoma Correlates with Estimated Extravascular Extracellular Space Derived from Dynamic Contrast-Enhanced MR Imaging

open access: yesAmerican Journal of Neuroradiology, 2016
Twenty-eight patients with newly presenting glioblastoma multiforme underwent preoperative conventional imaging and T1 dynamic contrast-enhanced MRI.
Samantha J. Mills   +7 more
semanticscholar   +1 more source

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