Results 31 to 40 of about 1,081,164 (211)

ERROR OF MEASURING ELECTROLYTIC CONDUCTIVITY BY A CELL (JONES TYPE) DUE TO RADIAL DISPLACEMENT OF ITS PARTS AFTER ASSEMBLING

open access: yesТехнічна електродинаміка, 2020
The article describes the error in measuring the electrolytic conductivity of solutions using a differential electrolytic cell (with a removable central part), due to inaccurate assembling of its design.
Д.В. Мелещук
doaj   +1 more source

A portable load cell for in-situ ore impact breakage testing [PDF]

open access: yes, 2002
This paper discusses the design and characterisation of a short, and hence portable impact load cell for in-situ quantification of ore breakage properties under impact loading conditions.
Bourgeois, Florent   +3 more
core   +1 more source

The measuring chamber of the device controlling the basic characteristics of the materials used in thermoelectric generators

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2017
The measuring chamber of a device intended for measuring of principal parameters of the thermoelectric materials (the Seebeck coefficient, electrical conductivity and thermal conductivity) is created.
A. M. Sinicin, V. A. Ulanov
doaj   +1 more source

Population-level transcription cycles derive from stochastic timing of single-cell transcription

open access: yes, 2009
Eukaryotic transcription is a dynamic process relying on a large number of proteins. By measuring the cycling expression of the pyruvate dehydrogenase kinase 4 gene in human cells, we constructed a detailed stochastic model for single-gene transcription ...
Carlberg, C.   +13 more
core   +1 more source

Measuring cell forces by a photoelastic method

open access: yes, 2007
A new method for measuring the mechanical forces exerted by cells on the substratum and through the substratum to act on other cells is described. This method depends upon the growth of cells on a photoelastic substratum, polydimethylsiloxane coated with
Curtis, Adam   +2 more
core   +1 more source

Notch promotes neural lineage entry by pluripotent embryonic stem cells [PDF]

open access: yes, 2006
A central challenge in embryonic stem (ES) cell biology is to understand how to impose direction on primary lineage commitment. In basal culture conditions, the majority of ES cells convert asynchronously into neural cells.
Smith, Austin G   +14 more
core   +1 more source

Measures of viability in isolated cells [PDF]

open access: yesBiochemical Medicine, 1975
Abstract Various methods were compared for estimation of cell viability. Cell count, uptake of trypan blue, release of cellular LDH, as well as cell contents of K+ and Na+ were determined in leukocytes, spleen cells, and Ehrlich cells exposed to adverse conditions. After incubation of these cells with NaF, the cell count remained essentially constant;
Medzihradsky, Fedor, Marks, Michael J.
openaire   +3 more sources

Serial Measurements of Apoptotic Cell Numbers Provide Better Acceptance Criterion for PBMC Quality than a Single Measurement Prior to the T Cell Assay

open access: yesCells, 2015
As soon as Peripheral Blood Mononuclear Cells (PBMC) are isolated from whole blood, some cells begin dying. The rate of apoptotic cell death is increased when PBMC are shipped, cryopreserved, or stored under suboptimal conditions. Apoptotic cells secrete
Marie Wunsch   +4 more
doaj   +1 more source

Cell surface mechanics gate embryonic stem cell differentiation

open access: yes, 2020
Cell differentiation typically occurs with concomitant shape transitions to enable specialized functions. To adopt a different shape, cells need to change the mechanical properties of their surface.
Lembo, Sergio   +10 more
core   +1 more source

Measuring Cell Mechanical Properties Using Microindentation

open access: yes, 2023
International audienceQuantifying cell mechanical properties is of interest to better understand both physiological and pathological cellular processes. Cell mechanical properties are quantified by a finite set of parameters such as the effective Young's
Husson, Julien
core   +1 more source

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