منابع مشابه
a comparative pragmatic analysis of the speech act of “disagreement” across english and persian
the speech act of disagreement has been one of the speech acts that has received the least attention in the field of pragmatics. this study investigates the ways power relations, social distance, formality of the context, gender, and language proficiency (for efl learners) influence disagreement and politeness strategies. the participants of the study were 200 male and female native persian s...
15 صفحه اولThe Resting Membrane Potential Results From the Separation of Charges Across the Cell Membrane
INFORMATION IS CARRIED WITHIN and between neurons by electrical and chemical signals. Transient electrical signals are particularly important for carrying time-sensitive information rapidly and over long distances. These electrical signals—receptor potentials, synaptic potentials, and action potentials—are all produced by temporary changes in the current flow into and out of the cell that drive...
متن کاملOn the Origin of the Membrane Potential Arising Across Densely Charged Ion Exchange Membranes: How Well Does the Teorell-Meyer-Sievers Theory Work?
A difference in salt concentration in two solutions separated by a membrane leads to an electrical potential difference across the membrane, also without applied current. A literature study is presented on proposed theories for the origin of this membrane potential (ϕm). The most well-known theoretical description is Teorell-Meyer-Sievers (TMS) theory, which we analyze and extend. Experimental ...
متن کاملModeling of Ethylbenzene Dehydrogenation Membrane Reactor to Investigate the Potential Application of a Microporous Hydroxy Sodalite Membrane
In this study the catalytic dehydrogenation of ethylbenzene to styrene was investigated in a simulated tubular sodalite membrane reactor. The high quality microporous sodalite membrane was synthesized by direct hydrothermal method and characterized by single gas permeation measurements. The performance of the prepared membrane showed high potential for application in a dehydrogenation membrane ...
متن کاملA comparison between streaming potential and membrane potential measured across single charged and bipolar membranes
Pressure-induced (streaming) potential and membrane potential across two ion-exchanger membranes (one positively charged and another negatively charged) have been measured with the membranes in contact with NaCl solutions at different salt concentrations. Membrane permselectivity was calculated from membrane potential and lower values were obtained for the cation-exchanger membrane. For compari...
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1968
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.22-3023