Termine

Novel Molecular Beam Epitaxy Approach for High Quality Complex Oxide Films, Dr. Bharat Jalan

01.09.2017 ab 10:00

Technische Fakultät, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel

Abstract:

Complex oxides with ABO3 perovskite structure have been of scientific interests for a long time due to their ability to display a wide-range of phenomena. Recent advances in thin film growth approaches have enabled the growth of this material class in thin film and heterostructure forms with structural quality, which has now become similar to that of the conventional semiconductors. However the grand challenge in the field is to obtain these materials with the high level of stoichiometric and defect control. In this talk, we will present our group’s effort to address these challenges and to utilize stoichiometry defects as a new degree of freedom to control material’s physical phenomena using a novel hybrid molecular beam epitaxy (MBE) approach with the focus to understand and control novel electronic and magnetic ground states in defect-managed oxide thin films and heterostructures.

Talk of the CRC 1261 "Magnetoelectric Sensors: From Composite Materials to Biomagnetic Diagnostics". Everybody interested is welcome.

 

http://www.sfb1261.de/index.php/en/events-en/talks-for-members/talks-for-members-2017

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Physiology of Peripheral Nerve Conduction from a Signal Analysis Point of View (Prof. Dr. med. Wilhelm Schulte-Mattler)

14.09.2017 ab 17:00

Technische Fakultät, Geb. D, "Aquarium", Kaiserstr. 2, 24143 Kiel

Talk of the CRC 1261 "Magnetoelectric Sensors: From Composite Materials to Biomagnetic Diagnostics". Everybody interested is welcome.


Abstract

To transmit information, peripheral nerve fibers locally change their electrical membrane properties. The changed regions move along the fibers causing traveling electrical fields, causing changes in voltage over time that depend both on where the voltage is recorded and on the nerve’s properties. Things are complicated by the nerves being composed of many thousands of fibers.

A simple model that explains these voltage changes, namely the signals that are recorded from actively transmitting nerves, will be presented. These signals provide information about the nerve’s function. Both, the influence of the recording conditions and the influence of various nerve disorders on the recorded waveforms will be presented. The usefulness of simple measures, such as amplitude and duration, is established. More advanced signal analysis indeed provides more information about peripheral nerve disorders.

Short biography

Wilhelm Schulte-Mattler studied Mathematics and Physics, followed by Medicine. He graduated at the University of Würzburg in 1988. His thesis was on Quantification of recruitment in needle-EMG. He specialized in Neurology in 1993. After heading Clinical Neurophysiology in the Dept. of Neurology, University of Halle-Wittenberg; since the year 2000, he is head of Clinical Neurophysiology in the Dept. of Neurology, University of Regensburg. A significant part of his work is on waveform analysis in clinical neurophysiology, particularly in electromyography and in electroneurography.

 

 

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