Search

Your search keyword '"Grein, Matthias"' showing total 29 results
Start Over Author "Grein, Matthias"
29 results on '"Grein, Matthias"'

11. Chancen und Herausforderungen der Körperkamera: Analysen und Reflexionen zu mobilen Minikameras als (neuem) Instrument der Unterrichtsvideografie

Author

Geimer, Alexander, Klinge, Denise, Rundel, Stefan, Thomsen, Sarah, centrum für qualitative evaluations- und sozialforschung e.V. (ces), Grein, Matthias, Tesch, Bernd, Geimer, Alexander, Klinge, Denise, Rundel, Stefan, Thomsen, Sarah, centrum für qualitative evaluations- und sozialforschung e.V. (ces), Grein, Matthias, and Tesch, Bernd

Published
2022

12. Chancen und Herausforderungen der Körperkamera: Analysen und Reflexionen zu mobilen Minikameras als (neuem) Instrument der Unterrichtsvideografie

Author

Grein, Matthias, Tesch, Bernd, Geimer, Alexander, Klinge, Denise, Rundel, Stefan, Thomsen, Sarah, and centrum für qualitative evaluations- und sozialforschung e.V. (ces)

Subjects
10614 Curriculum, Teaching, Didactics, 10104 Research Design, teaching observation, video, teaching research, Education, Forschungsarten der Sozialforschung, ddc:370, audiovisual media, Dokumentarische Methode, Videographie, audiovisuelle Medien, Curriculum, Teaching, Didactics, Unterricht, Didaktik, Bildung und Erziehung, Social sciences, sociology, anthropology, Wissenssoziologie, Sozialwissenschaften, Soziologie, Unterrichtsbeobachtung, Video, corporeality, teaching, sociology of knowledge, Research Design, Unterrichtsforschung, ddc:300, Unterricht, Körperlichkeit
Abstract

JDM - Jahrbuch Dokumentarische Methode

Published
2021

14. Systematic error of lidar profiles caused by a polarization-dependent receiver transmission: quantification and error correction scheme

Author

Mattis, Ina, Tesche, Matthias, Grein, Matthias, Freudenthaler, Volker, and Muller, Detlef

Subjects
Optical radar -- Usage, Optical radar -- Properties, Polarization (Light) -- Research, Error-correcting codes -- Research, Aerosols -- Properties, Signal processing -- Methods, Backscattering -- Research, Light scattering -- Research, Remote sensing -- Methods, Digital signal processor, Astronomy, Physics
Abstract

Signals of many types of aerosol lidars can be affected with a significant systematic error, if depolarizing scatterers are present in the atmosphere. That error is caused by a polarization-dependent receiver transmission. In this contribution we present an estimation of the magnitude of this systematic error. We show that lidar signals can be biased by more than 20%, if linearly polarized laser light is emitted, if both polarization components of the backscattered light are measured with a single detection channel, and if the receiver transmissions for these two polarization components differ by more than 50%. This signal bias increases with increasing ratio between the two transmission values (transmission ratio) or with the volume depolarization ratio of the scatterers. The resulting error of the particle backscatter coefficient increases with decreasing backscatter ratio. If the particle backscatter coefficients are to have an accuracy better than 5%, the transmission ratio has to be in the range between 0.85 and 1.15. We present a method to correct the measured signals for this bias. We demonstrate an experimental method for the determination of the transmission ratio. We use collocated measurements of a lidar system strongly affected by this signal bias and an unbiased reference system to verify the applicability of the correction scheme. The errors in the case of no correction are illustrated with example measurements of fresh Saharan dust. OCIS codes: 280.3640, 280.1100.

Published
2009

15. Der Schülerjob im Fremdsprachenunterricht? Zu einer schulpädagogischen Metapher und deren Übertrag auf den Fremdsprachenunterricht

Author

Grein, Matthias and Vernal Schmidt, Janina M.

Subjects
Fremdsprachenunterricht, Ethnografie, Ethnography, Secondary education upper level, Teaching of French, Schulpädagogik, School year 10, Sekundarstufe II, Proficiency course, Germany, Pupil Attitudes, Upper secondary education, Secondary school, Teaching of foreign languages, Dokumentarische Methode, Studie, Upper secondary, Französischunterricht, Didaktik, Pupils, Main subject, Leistungskurs, Group work, Gymnasium, Schüler, French language lessons, Training method, Unterricht, Schülerverhalten, Peer groups, Pupil behaviour, Foreign language teaching, Erziehung, Schul- und Bildungswesen, Conversational teaching, Unterrichtsgespräch, Fremdsprachenforschung, Typologie, Pupil behavior, Peer Group, Education, ddc:370, Identity, Teaching of Spanish, Spanischunterricht, Interview, Deutschland, Fachdidaktik/Sprache und Literatur, Teaching, Teaching research, Identität, Pupil, German academic secondary school, School year 11, Gruppenarbeit, Typology, Grammar School, Unterrichtsforschung, Schuljahr 10, Schuljahr 11, Schulalltag
Abstract

Der Artikel beschäftigt sich mit der aus der ethnographischen Unterrichtsforschung stammenden Metapher des Schülerjobs und differenziert deren Übertrag in die fremdsprachendidaktische Forschung am Beispiel der Daten zweier Forschungsprojekte zum Spanisch- und Französischunterricht aus. Der Beitrag fokussiert erstens Klarheit bezüglich des noch vage definierten Befunds Schülerjob, indem der sozialtheoretische Rahmen sowie die Hauptcharakteristika herausgearbeitet werden. Zweitens werden anhand des Schülerjobs Herausforderungen für die Fremdsprachendidaktik wie für die Schulpädagogik aufgezeigt. (DIPF/Orig.), The article discusses the metaphor of student’s job. Originating in the ethnography of education, the transfer to foreign language learning and its differentiation on the basis of two PhD projects, one within the context of Spanish and the other of French foreign language learning and teaching, is proposed. The first steps aim at conceptual clarification of an often used but still vague term by uncovering the various sociological backgrounds and the main characteristics. Further steps show the challenges the student’s job presents to the fields of foreign language learning studies as well as school and education studies. (DIPF/Orig.)

Published
2020

16. The Leaky Pipeline Revisited : Using Sociocultural Fit and Intersectionality to Analytically and Empirically Tackle Unequal Educational Transitions on the Example of Gender and the Subject Selection of French

Author

Grein, Matthias, Behrens, Christoph, and Zittlau, Andrea

Subjects
Intersectionality, Educational Trajectories, French, Habitus, Sociocultural Fit, Leaky Pipeline, ddc:300, Intersektionalität, ddc:301
Abstract

The leaky pipeline metaphor is used to describe the dropout rate of certain populations from certain careers like women from academia or people of color from teaching jobs. While the phenomena are acknowledged, the term leaky pipeline has been criticized for lacking systematicity in describing social inequalities and for its inherent functionalism. Based on this criticism, this paper discusses ways to systematically account for a) the social context, via sociocultural fit; b) the leaking populations and their interwoven social belongings, via intersectionality; and c) the theoretical integration and empirical application of these concepts, via a sociology of knowledge approach. I demonstrate these procedures on an example from the field of institutional language learning, the de/selection decision concerning French, to be made at the transition to high school.

Published
2017

24. Eine pas très facile Leidenschaft? Die Entwicklung berufsbezogener Überzeugungen von angehenden Französischlehrkräften. Eine explorative Studie in Bachelorund Masterstudiengängen an der Universität Hamburg

Author

Melo-Pfeifer, Sílvia, Surkamp, Carola, Series Editor, Bogner, Andrea, Series Editor, Bräuer, Christoph, Series Editor, Schädlich, Birgit, Series Editor, García, Marta, Series Editor, Grein, Matthias, editor, and Vernal Schmidt, Janina M., editor

Published
2021
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results