Results 31 to 40 of about 214,899 (281)

Hurdles and requirements of an African experience of e-learning [PDF]

, 2005
Today, in a tense context of globalisation of economics and finance, education and training must obey global requirements. Computer science and new learning environments have become crucial in developing countries.
Kolyang
core   +1 more source

Advancing Research on Biomaterials and Biological Materials with Scanning Electron Microscopy under Environmental and Low Vacuum Conditions

Advanced Engineering Materials, EarlyView.
Herein, environmental scanning electron microscopy (ESEM) is discussed as a powerful extension of conventional SEM for life sciences. By combining high‐resolution imaging with variable pressure and humidity, ESEM allows the analysis of untreated biological materials, supports in situ monitoring of hydration‐driven changes, and advances the functional ...
Jendrian Riedel, Lea Dierker, Antoine Eyram Kwame, Kim Nora Wagner, Jonas J. Unterholzner, Jan‐Henning Dirks, Dorothea Brüggemann   +6 more
wiley   +1 more source

Transfer of Energy and Momentum Between Magnetoactive Surface Microstructure and a Solid Object

Advanced Engineering Materials, EarlyView.
We demonstrate that magnetoactive multilamellar arrays subjected to a rotating magnetic field can function as platforms for controlled transport of physical objects. Through systematic experimental investigation, we elucidate the underlying physical mechanisms determining the upper limit of the achievable transportation speed in such magnetic “conveyor‐
Arne Geldof, Jan Kopačin, Izidor Straus, Raphael Kriegl, Gaia Kravanja, Luka Hribar, Matija Jezeršek, Mikhail Shamonin, Gašper Kokot, Irena Drevenšek‐Olenik   +9 more
wiley   +1 more source

Editorial: Lernsituationen mit Metaphern und Wikibooks

MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung, 2020
Seit über 20 Jahren wird die Bedeutung und Notwendigkeit einer integrativen Medienbildung in der Lehrerinnen- und Lehrerbildung sowie in der Schule betont (AG Erziehungswissenschaft 1997; BMBF 2010; KMK 2012, 2016a).
Franco Rau
doaj   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source

Forschung@H-BRS [PDF]

, 2017
Die Hochschule präsentiert mit ihrer neuen Broschüre "Forschung@H-BRS" ausgewählte Projekte von Wissenschaftlerinnen und Wissenschaftlern aus den Instituten und Fachbereichen in einem ansprechenden Format. Hochschulpräsident Harmtut Ihne blickt zu Anfang
Hochschule Bonn-Rhein-Sieg
core  

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

Advanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao, Fan Li, Jiajie Gao, Elric Zhang, Yingdong Su, Ni Qin, Hao Ye, Josep Puigmartí, Giuseppe Cantarella, Simone Schuerle, Jiang Wu, Bradley J. Nelson, Salvador Pané   +12 more
wiley   +1 more source

Marmorera : ein verschwindendes Bündnerdorf [PDF]

Geographica Helvetica
No abstract available.
Eidgenössische Technische Hochschule (Zürich). Geographisches Institut
doaj   +1 more source

Wikis in elearning and student projects [PDF]

, 2012
The paper presents a study which was based on the hypothesis that wikis that are initiated bottom up by students might be used more deliberately than wikis which are introduced top down by teachers.
Bremer, Claudia
core  

Chemoselective Sequential Polymerization: An Approach Toward Mixed Plastic Waste Recycling

Advanced Functional Materials, EarlyView.
Inspired by biological protein metabolism, this study demonstrates the closed‐loop recycling of mixed synthetic polymers via ring‐closing depolymerization followed by a chemoselective sequential polymerizations process. The approach recovers pure polymers from mixed feedstocks, even in multilayer formats, highlighting a promising strategy to overcome a
Gadi Slor, Youwei Ma, Hyunwoo Park, Tae‐Lim Choi, Damien Guironnet, Francesco Stellacci   +5 more
wiley   +1 more source