Visar resultat 1 - 5 av 183 avhandlingar innehållade ordet A-current.
1. Applying the Pump and Leak Hypothesis. An experimental and theoretical investigation of the principles of ion regulation and excitability in the crustacean stretch receptor neuron
Sammanfattning : An invertebrate nerve cell preparation, the lobster stretch receptor neuron, was investigated with respect to maintenance of its resting voltage, intracellular ion concentrations and excitability using voltage clamp technique and ion-selective microelectrodes. It was found that the resting voltage (-65 mV) of microelectrode impaled cells is caused by (a) a homogenous population of K+ channels which we denoted as leak channels (b) an electrogenic and voltage-dependent Na-K pump current and (c) an inward microelectrode-induced "impalement" current carried mainly by Na+. LÄS MER
Sammanfattning : In this thesis, I describe several advances in the modelling of microwave telescopes.In particular, my collaborators and I have examined two potential sources of systematic error. The first concerns the non-idealities of a half-wave plate, which we have integrated into the beamconv software. LÄS MER
Sammanfattning : Stainless steels are high-alloyed, usually with multiple components and often also dual matrix phases, as for duplex stainless steels. This make predictions and calculations of alloying effects on equilibria and transformations complicated. LÄS MER
4. Våld i nära relationer bland familjer som söker barn- och ungdomspsykiatrisk öppenvård. Förekomst och behandlares erfarenheter med att identifiera våldet
Sammanfattning : The aim of the study was 1) to investigate the prevalence of intimate partner violence (IPV) among mothers visiting a Child and Adolescent Psychiatric unit (CAP) together with their child and 2) to explore clinicians´ experiences of routinely asking about IPV in a CAP with a standardized questionnaire. During one year, the prevalence of IPV was explored by clinicians routinely asking the mothers of the patients verbally if they had been subjected to IPV in a current or former relationship. LÄS MER
Sammanfattning : This thesis concerns various aspects of the theory of residue currents. Particularly, we study residue currents on singular varieties and duality theorems for such currents. On a singular variety, there are various notions of holomorphic functions. LÄS MER