Entwicklung von Remote-Labs zum erfahrungsbasierten Lernen

In den Ingenieurwissenschaften bietet das Lernen in Laboren ein besonderes Potenzial zum Erwerb auch außerfachlicher Kompetenzen, das in der Regel jedoch kaum genutzt wird. Das Beispiel eines fernsteuerbaren Labors mit einer Lernumgebung, die unterschiedliche Lernpfade einbindet, zeigt, wie erfahrungsbasiertes Lernen in der Hochschule ermöglicht werden kann. 23.01.2013 | Tobias Haertel, Claudius Terkowsky, Dominik May & Christian Pleul (Dortmund

In Vitro Interaction of Lithium on Phospholipids in Human Erythrocytes

Lithium salts are used in the treatment of mania and as prophylaxis against manic depressive disorder. The aim of these studies was the in vitro investigation of the effect of lithium on phospholipids of human erythrocyte membranes. Erythrocytes were treated with lithium for 1 h. Phospholipids phosphatidylinositol (PI), phosphatidylserine (PS), phosphatidylethanolamine (PE), and phosphatidylocholine (PC) were separated from erythrocyte ghosts and determined by HPLC. Blood samples from healthy adults were investigated. A very strong decrease in PC content in erythrocyte membranes due to lithium in vitro treatment was found, as well as a statistically significant increase in PI content

Unexpected depletion in plasma choline and phosphatidylcholine concentrations in a pregnant woman with bipolar affective disorder being treated with lithuim, haloperidol and benztropine: a case report

<p>Abstract</p> <p>Introduction</p> <p>Patients with bipolar affective disorder can be effectively managed with pharmacological intervention. This case report describes a pregnant woman with a ten-year history of bipolar affective disorder that was being treated with lithium, haloperidol and benztropine.</p> <p>Case presentation</p> <p>The patient had a normal pregnancy, but developed an elevated blood pressure and started to lose weight at 36 weeks of gestation. During pregnancy, plasma concentrations of choline and phosphatidylcholine are increased to meet the demands of the foetus. However, our findings in this case included depletion of plasma choline and phosphatidylcholine concentrations. Other unusual outcomes included low placental weight and low infant birth weight.</p> <p>Conclusion</p> <p>This report suggests that the pharmacological management of this patient could possibly account for the findings.</p

Estimation of Cholinesterase Activity (EC 3.1.1.7; 3.1.1.8) in Undiluted Plasma and Erythrocytes as a Tool for Measuring In Vivo Effects of Reversible Inhibitors

Peer Reviewe

Integrating Remote Labs into Personal Learning Environments - Experiential Learning with Tele-operated Experiments and E-portfolios

The use of laboratories in Higher Engineering Education is an adequate opportunity to implement forms of experiential learning like problem-based or research-based learning into manufacturing technology. The introduction of remote laboratories gives students the opportunity to do self-directed research and by that having their own and unique learning experiences. Recently finished research projects, e.g. the PeTEX project, implemented research-based learning by deploying real laboratory equipment without being physically in the laboratory but by accessing it via the Internet. One essential question in this context is on the one hand how the student can document his/her own learning processes and how the teacher can guide the student through these processes on the other hand. The proposed solution in this paper is a personal learning environment that integrates a remote lab and an e-portfolio system. E-portfolios enable the student to individually and collectively document and reflect what he/she has been doing and to share his/her outcomes with others. The paper outlines the important role that e-portfolios can play as personal learning environments to experience remote laboratory work and to foster creative attitudes

Bringing Remote Labs and Mobile Learning together

Within laboratories in Engineering Education students have the chance to do own experiments and by that gain own experiences in their learning processes â?? means that they are an adequate opportunity to implement experiential and research based learning. Recently finished research projects - e.g. like the PeTEX project done by universities in Dortmund (Germany), Palermo (Italy) and Stockholm (Sweden) â?? implemented an opportunity to do experiential learning by using real laboratory equipment without being physically in the laboratory but having access via the internet. A question in this context is, how students can document their learning process and show to others (teachers and/or other students), what they have been doing. Making the whole environment available for mobile devices so that students have access from virtually everywhere and every time is the consequent further development. With this work in progress paper we show what kind of role e-portfolios can play in the learning process and which kind of scenarios are possible using the software on mobile devices. Furthermore, we show that the combination of experiential learning and the use of e-portfolios offer a great potential to promote the learnersâ?? creativity. This unique combination of topics is realized within one subtask of the project â??ELLI â?? Excellent Teaching and Learning in Engineering Educationâ? at TU Dortmund University

Własności powierzchni włókien węglowych. Struktura i reaktywność

Elektrokinetische Untersuchungen und Messungen mitteLs inverser Gaschromatographie erlauben, sowohl die Brönsted- als auch die Lewis-Säure-Base-Eigenschaften von Kohlenstoffaseroberflächen zu untersuchen. Die chemische Zusammensetzung der Kohlenstoffaseroberflächen wurde durch photoelektronenspektroskopische Untersuchungen bestimmt. Der Vergleich der thermodynamischen Messungen mit den spektroskopischen Ergebnissen erlaubte, das reaktiveVerhalten der verschiedenen Faseroberflächen auf molekulare Ursachen zurückzuführen. Es konnte gezeigt werden, daß sich die Kombination spektroskopischer und thermodynamischer Methoden hinsichtlichtlich ihrer Aussagen zur Chemie einer Festkörperoberfläche sinnvoll ergänzen.This paper discusses the results of different physico-chemical measuring methods, e.g. inverse gas chromatography and electrokinetic measurements, to estimate the acid-base surface properties of carbon fibres. The discussion has been focused on the changes in the BrOnsted and Lewis acid-base properties after a surface treatment. In addition, photoelectron spectroscopic investigations of carbon fibres, which show the elemental surface composition, are a successful tool to demonstrate the molecular reasons of the thermodynamic surface properties. The combination of different physico-chemical and spectroscopic measuring methods allowed to get comprehensive knowledge of the fibre surface chemistry.Zadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę

miniLABs – Focused Lab Sessions in Manufacturing Technology Related to Forming Processes

Laboratory experiments play a significant role in engineering education. The main concern of the described hands-on miniLABs initiative (as a work in progress) is lowering the hurdles in order to provide engineering students with an informal and straightforward access to experiments carried out in labs of the IUL at TU Dortmund University. miniLABs will offer students different, short and voluntary hands-on lab sessions, consisting of two different modes and different aspects related to manufacturing technology in the field of forming processes. In small teams, students can get in touch with practical engineering activities in the fields of present scientific research, either to study a certain phenomenon or to look at a wider engineering context. Based on the framework of experiential learning, miniLABs tries to foster the shift from teaching to deep learning. Finally, this initiative aims to inspire young students for real and hands-on engineering experiments and to contribute to the science education of these young and future engineers