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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
2. Applications of Computational Thermodynamics and Kinetics on Transformations in Stainless Steels
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
3. 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
4. Vertical III-V Nanowire Tunnel Field-Effect Transistors : A Circuit Perspective
Sammanfattning : The energy scaling of integrated circuits has reached its limit because the operating voltage of Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFET) based switches has reached its minimum value. MOSFETs are limited by thermionic emission and cannot achieve a subthreshold swing (SS) below 60 mV/decade at room temperature. LÄS MER
5. Residue currents on singular varieties
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