Global ETD Search

231	Is intravenous magnesium effective in cardiac arrhythmias? Campbell, G. January 2008 (has links) Published Article / Magnesium is the second most abundant intracellular cation with many control and regulatory functions. It regulates energy production and utilization and modulates activity of membrane ionic channels. Magnesium has direct control effects on cardiac myocyte ion channels making it useful in certain arrhythmias. Calcium is responsible for pacemaker excitation and for excitation-contraction coupling in myocytes but increased intracellular calcium produces early and late afterdepolarisations initiating arrhythmias. Magnesium regulates calcium channel activity preventing raised intracellular levels. Potassium channel activity is enhanced by magnesium hyperpolarizing the cell reducing arrhythmia generation. Magnesium is effective against long QT Torsade de Pointes. In rapid atrial fibrillation magnesium produces rate control slowing AV nodal conduction. Magnesium prevents digitalis toxicity due to associated hypomagnesemia. Magnesium Arrhythmias Ion channels Action potential Ischemia
232	MIMO CHANNEL TIME VARIATION AS A FUNCTION OF MOBILE USER VELOCITY Panagos, Adam G., Kosbar, Kurt 10 1900 (has links) International Telemetering Conference Proceedings / October 18-21, 2004 / Town & Country Resort, San Diego, California / The analysis of multiple-input multiple-output (MIMO) communication systems often assumes a static, or quasi-static, environment. Platform motion and changes in the environment makes this an unreasonable assumption for many telemetry applications. This paper uses computer simulations to characterize the time variation of MIMO channel parameters when there is relative motion between the transmitter and receiver. These simulation results yield explicit time intervals over which a MIMO channel can be considered static for a given relative velocity and propagation environment. These results can be used to predict the practical limitations of proposed MIMO system algorithms. MIMO Channels simulation coherence time dynamic channel
233	Distribution channel strategies of Japanese machine tool builders 馮偉興, Fung, Wai-hing, Anthony. January 1989 (has links) published_or_final_version / Business Administration / Master / Master of Business Administration Machine-tool industry - Japan. Marketing channels - Japan.
234	Using alpha-aminoxy acids as building blocks to construct anion receptors and synthetic chloride channels Li, Xiang, 李祥 January 2008 (has links) The Best PhD Thesis in the Faculties of Dentistry, Engineering, Medicine and Science (University of Hong Kong), Li Ka Shing Prize,2007-2008 / published_or_final_version / Chemistry / Doctoral / Doctor of Philosophy Amino acids. Anions - Receptors. Chloride channels.
235	Current challenges in channel relationships Dong, Chuoyan, Maggie., 董婥嫣. January 2008 (has links) published_or_final_version / Business / Doctoral / Doctor of Philosophy Distributors (Commerce) Marketing channels - Management. Corporate governance.
236	The regulation of cardiac potassium channels by protein tyrosine kinases Zhang, Deyong, 張德勇 January 2008 (has links) published_or_final_version / Medicine / Doctoral / Doctor of Philosophy Protein-tyrosine kinase. Potassium channels. Heart cells.
237	Structural and functional studies of membrane peptides : Glycophorin A transmembrane domain and melittin analogues Takei, Jiro January 1998 (has links) No description available. 572 Ion channels; Cell lysis; NMR
238	Low complexity adaptive equalisation for wireless applications Perry, Russell January 1997 (has links) No description available. 621.382 Mobile radio channels; Signal fading
239	An electrophysiological and pharmacological characterization of a Ca'2'+ channel currents in the soma and dendrites of adult rat cerebellar Purkinje cells Dupere, Jonathan R. B. January 1997 (has links) No description available. 615.1 Calcium channels; Dendrites; Patch clamp
240	Some new procedures for generating and decoding error correcting codes Akeredolu, P. S. January 1988 (has links) No description available. 621.3822 Computer error channels][Coding theory

Search results