Zobrazeno 1 - 10 of 71 pro vyhledávání: '"H G, Hartwig"'
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Microstructure and crystallographic texture of the chitin–protein network in the biological composite material of the exoskeleton of the lobster Homarus americanus
Autor: A. Al-Sawalmih, P. Romano, G. Servos, S. B. Yi, H. G. Hartwig, C. Sachs, Dierk Raabe, H. Fabritius
Publikováno v: Materials Science and Engineering: A. 421:143-153
The exoskeleton of the lobster Homarus americanus is a multiphase biological composite material which consists of an organic matrix (crystalline α-chitin fibers and various types of non-crystalline proteins) and minerals (mainly calcite). In this st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::384af781262737595a6eee2b25345be5
https://doi.org/10.1016/j.msea.2005.09.115
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3
Structure and Crystallographic Texture of Arthropod Bio-Composites
Autor: Dierk Raabe, Sangbong Yi, H. G. Hartwig, Heinz Günter Brokmeier, G. Servos, A. Al-Sawalmih, P. Romano, C. Sachs
Publikováno v: Materials Science Forum. :1665-1674
In this study we present experimental investigations on the microscopic structure, constituent phases, and crystallographic textures of the exoskeleton of three types of decapod crustaceans, namely, lobster, crab, and horseshoe crab. The carapace of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cdfad9e7fd0dc4710837dedf8ec78a4
https://doi.org/10.4028/www.scientific.net/msf.495-497.1665
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4
Discovery of a honeycomb structure in the twisted plywood patterns of fibrous biological nanocomposite tissue
Autor: S. B. Yi, P. Romano, C. Sachs, G. Servos, A. Al-Sawalmih, Heinz Günter Brokmeier, Dierk Raabe, H. G. Hartwig
Publikováno v: Journal of Crystal Growth. 283:1-7
Electron microscopy and synchrotron Bragg diffraction were used for the investigation of the structure of the exoskeleton of the lobster Homarus americanus. The study reveals a pronounced microstructure hierarchy and a strong crystallographic and top
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d8bc43f8dc4eee0fd58c13d5e5a17ab7
https://doi.org/10.1016/j.jcrysgro.2005.05.077
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5
Topographical distribution of lactate dehydrogenase activity in human clear eye lenses and in lenses with different types of senile cataract: a histochemical investigation
Autor: H G Hartwig, Hans Pau, R Fassbender
Publikováno v: Graefe's Archive for Clinical and Experimental Ophthalmology. 235:611-617
• Background: Homogenates of human clear lenses show an age-dependent reduction of enzyme activities. Topographical patterns of enzymes in clear and cataractous lenses can be visualized by histochemistry. • Material and methods: Human lenses were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b30aab89f89aeff002ec307ac2f0cda6
https://doi.org/10.1007/bf00946936
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8
[Quality control of sonography courses in advanced training of physicians: analysis of present status and potential for improvement]
Autor: M, Hofer, N, Mey, J, Metten, H G, Hartwig, U, Mödder
Publikováno v: Ultraschall in der Medizin (Stuttgart, Germany : 1980). 23(3)
Since 1995 sonography represents the diagnostic imaging procedure most commonly applied (52 %) by physicians working in the public health sector. On the account of the high cost of sonography (around 2,5 billion DM in 1998) it seems justified to inte
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::869a5bc627cd405152258ef4d0f720d8
https://pubmed.ncbi.nlm.nih.gov/12168143
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9
[Innovative course concept for small group teaching in clinical methods. Results of a longitudinal, 2-cohort study in the setting of the medical didactic pilot project in Dusseldorf]
Autor: M, Hofer, B, Schiebel, H G, Hartwig, A, Garten, U, Mödder
Publikováno v: Deutsche medizinische Wochenschrift (1946). 125(23)
Medical students in Germany often criticize the anonymous and not practice-orientated way they are taught. It was the aim of this study to develop, try out and evaluate cost-effectiveness of practice-oriented interdisciplinary teaching in small group
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::24ae61240dc973232058b4de33132f83
https://pubmed.ncbi.nlm.nih.gov/10902502
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