Hellriegel jan (18 risultati)
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Da: GreatBookPrices, Columbia, MD, U.S.A.GreatBookPrices
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Da: Ria Christie Collections, Uxbridge, Regno UnitoRia Christie Collections
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Da: Chiron Media, Wallingford, Regno UnitoChiron Media
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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Da: GreatBookPricesUK, Woodford Green, Regno UnitoGreatBookPricesUK
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Da: moluna, Greven, Germaniamoluna
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Condizione: New.
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Da: PBShop.store US, Wood Dale, IL, U.S.A.PBShop.store US
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PAP. Condizione: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
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Da: PBShop.store UK, Fairford, GLOS, Regno UnitoPBShop.store UK
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PAP. Condizione: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.
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Da: Buchpark, Trebbin, GermaniaBuchpark
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Condizione: Hervorragend. Zustand: Hervorragend | Seiten: 348 | Sprache: Deutsch | Produktart: Bücher | Mit der Digitalisierung der Gesellschaft steigt die Notwendigkeit, Bildungsangebote bereitzustellen, die die Medienkompetenz aller Bürger:innen kontinuierlich verbessern. Doch wer fördert insbesondere die Medienkompe…tenz von Erwachsenen? Hier sieht Jan Hellriegel die Volkshochschulen (VHS) als öffentlich geförderte Anbieter von Weiterbildung dem Gemeinwohl verpflichtet. Beispielhaft analysiert er die Programme von vier VHS in Rheinland-Pfalz unter dem Aspekt der Medienkompetenzförderung. Ergänzt wird die Fallstudie durch Interviews mit VHS-Leitungen und hauptamtlich pädagogischen Mitarbeitenden. In den Ergebnissen wird deutlich, dass digitale Teilhabe für alle ein bislang nicht erfüllter Bildungsauftrag der VHS ist. "Die Arbeit ist eine Bereicherung für Forschung und Praxis, weil sie eine zentrale gesamtgesellschaftliche Frage adressiert: Welche medienbezogenen Kompetenzen brauchen Bürger:innen in einer digitalen Welt und wie können sie diese erwerben bzw. von wem werden sie dabei unterstützt?"Matthias Rohs, Professor für Erwachsenenbildung an der Technischen Universität Kaiserslautern.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
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EUR 28,79
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Biofilms play a major role in material cycles and contribute to technical systems significantly. Despite their interference with the functionality of technical equipment or the product quality their ability to catabolize toxins and… metabolize pharmaceutically relevant substances increases the interest in biofilm-based biotransformations. However, so far there is a lack of appropriate models that allow anticipating the mechanical stability of biofilms in particular during detachment processes.The main objective of this work was the development of a hydrogel based physico-chemical and growth independent biofilm imitate to investigate mechanical, primarily fluid dynamical stresses and their influence on growth and detachment effects of biofilms. Verification was achieved by comparison with real single culture biofilms. Single culture biofilms of Pseudomonas putida KT2440 were cultivated in a biofilm tube reactor and grown on different surfaces, e.g., tube walls, surface-modified object slides, plastic and iron nettings as well as membrane filters. The establishment of on-line analytics allowed the automatic measurement of dissolved oxygen, pH, temperature and planktonic cell growth by optical density in the cultivation broth. Image acquisition of the biofilm surface supported the observation of biofilm development in terms of growth and detachment.A hydrogel based on gellan was established as simplified artificial biofilm system, which behaves like a viscoelastic fluid. The degree of cross-linking at different gellan levels was modified by the addition of mono-and divalent ions (Na+, Mg2+) and the influence on the material constants in terms of storage (G') and loss (G'') modulus was determined. Experiments and evaluation in the predefined design space were supported by Central Composite Design (CCD), an experimental design technique.The developed gellan-based hydrogel allows mimicking the mechanical properties of a biofilm excluding biological growth effects. It can now be used to validate further characterization methods or to test slowly growing biofilms where systematic errors are often smaller than the biological variances. Eventually this method enables a fast and reliable mechanical testing of biofilm systems. 146 pp. Englisch.
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Da: moluna, Greven, Germaniamoluna
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Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. KlappentextrnrnBiofilms play a major role in material cycles and contribute to technical systems significantly. Despite their interference with the functionality of technical equipment or the product quality their ab…ility to catabolize toxins an.
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Da: buchversandmimpf2000, Emtmannsberg, BAYE, Germaniabuchversandmimpf2000
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 28,79
EUR 60,00 spedizioneSpedito da Germania a U.S.A.Quantità: 1 disponibili
Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Biofilms play a major role in material cycles and contribute to technical systems significantly. Despite their interference with the functionality of technical equipment or the product quality their ability to catabolize toxins and met…abolize pharmaceutically relevant substances increases the interest in biofilm-based biotransformations. However, so far there is a lack of appropriate models that allow anticipating the mechanical stability of biofilms in particular during detachment processes.The main objective of this work was the development of a hydrogel based physico-chemical and growth independent biofilm imitate to investigate mechanical, primarily fluid dynamical stresses and their influence on growth and detachment effects of biofilms. Verification was achieved by comparison with real single culture biofilms. Single culture biofilms of Pseudomonas putida KT2440 were cultivated in a biofilm tube reactor and grown on different surfaces, e.g., tube walls, surface-modified object slides, plastic and iron nettings as well as membrane filters. The establishment of on-line analytics allowed the automatic measurement of dissolved oxygen, pH, temperature and planktonic cell growth by optical density in the cultivation broth. Image acquisition of the biofilm surface supported the observation of biofilm development in terms of growth and detachment.A hydrogel based on gellan was established as simplified artificial biofilm system, which behaves like a viscoelastic fluid. The degree of cross-linking at different gellan levels was modified by the addition of mono-and divalent ions (Na+, Mg2+) and the influence on the material constants in terms of storage (G¿) and loss (G¿¿) modulus was determined. Experiments and evaluation in the predefined design space were supported by Central Composite Design (CCD), an experimental design technique.The developed gellan-based hydrogel allows mimicking the mechanical properties of a biofilm excluding biological growth effects. It can now be used to validate further characterization methods or to test slowly growing biofilms where systematic errors are often smaller than the biological variances. Eventually this method enables a fast and reliable mechanical testing of biofilm systems.Cuvillier Verlag, Nonnenstieg 8, 37075 Göttingen 146 pp. Englisch.
Engineering a Biofilm : Imitating Physico-Chemical Properties to Improve Mechanical Characterization
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Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
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Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Biofilms play a major role in material cycles and contribute to technical systems significantly. Despite their interference with the functionality of technical equipment or the product quality their ability to catabolize toxins and meta…bolize pharmaceutically relevant substances increases the interest in biofilm-based biotransformations. However, so far there is a lack of appropriate models that allow anticipating the mechanical stability of biofilms in particular during detachment processes.The main objective of this work was the development of a hydrogel based physico-chemical and growth independent biofilm imitate to investigate mechanical, primarily fluid dynamical stresses and their influence on growth and detachment effects of biofilms. Verification was achieved by comparison with real single culture biofilms. Single culture biofilms of Pseudomonas putida KT2440 were cultivated in a biofilm tube reactor and grown on different surfaces, e.g., tube walls, surface-modified object slides, plastic and iron nettings as well as membrane filters. The establishment of on-line analytics allowed the automatic measurement of dissolved oxygen, pH, temperature and planktonic cell growth by optical density in the cultivation broth. Image acquisition of the biofilm surface supported the observation of biofilm development in terms of growth and detachment.A hydrogel based on gellan was established as simplified artificial biofilm system, which behaves like a viscoelastic fluid. The degree of cross-linking at different gellan levels was modified by the addition of mono-and divalent ions (Na+, Mg2+) and the influence on the material constants in terms of storage (G') and loss (G'') modulus was determined. Experiments and evaluation in the predefined design space were supported by Central Composite Design (CCD), an experimental design technique.The developed gellan-based hydrogel allows mimicking the mechanical properties of a biofilm excluding biological growth effects. It can now be used to validate further characterization methods or to test slowly growing biofilms where systematic errors are often smaller than the biological variances. Eventually this method enables a fast and reliable mechanical testing of biofilm systems.
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Da: BuchWeltWeit Ludwig Meier e.K., Bergisch Gladbach, GermaniaBuchWeltWeit Ludwig Meier e.K.
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 78,40
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Buch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -Themenheft 36: Teilhabe in einer durch digitale Medien geprägten Welt - Perspektiven des wissenschaftlichen Nachwuchses. Herausgegeben von Tim Riplinger, Jan Hellriegel und Ricarda Bolten 196 pp. Deutsch.
Lingua: Inglese
Editore: Oapublishing Collective, Oapublishing Collective Mär 2024, 2024
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Da: buchversandmimpf2000, Emtmannsberg, BAYE, Germaniabuchversandmimpf2000
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 78,40
EUR 60,00 spedizioneSpedito da Germania a U.S.A.Quantità: 1 disponibili
Buch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -Themenheft 36: Teilhabe in einer durch digitale Medien geprägten Welt ¿ Perspektiven des wissenschaftlichen Nachwuchses. Herausgegeben von Tim Riplinger, Jan Hellriegel und Ricarda BoltenBooks on Demand GmbH, Überseering 33, 22297 Hamburg 196… pp. Deutsch.
Lingua: Inglese
Editore: Oapublishing Collective, Oapublishing Collective, 2024
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Da: AHA-BUCH GmbH, Einbeck, GermaniaAHA-BUCH GmbH
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 78,40
EUR 64,27 spedizioneSpedito da Germania a U.S.A.Quantità: 1 disponibili
Buch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Themenheft 36: Teilhabe in einer durch digitale Medien geprägten Welt - Perspektiven des wissenschaftlichen Nachwuchses. Herausgegeben von Tim Riplinger, Jan Hellriegel und Ricarda Bolten.
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Da: preigu, Osnabrück, Germaniapreigu
Contatta il venditoreVenditore con 5 stelleCondizione: Nuovo
EUR 78,40
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Buch. Condizione: Neu. Teilhabe in einer durch digitale Medien geprägten Welt | Perspektiven des wissenschaftlichen Nachwuchses | Tim Riplinger (u. a.) | Buch | Themenhefte 36 | 196 S. | Deutsch | 2024 | OAPublishing Collective | EAN 9783039780273 | Verantwortliche Person für die EU: BoD - Books on Demand, In de Tarpen 42, 22848… Norderstedt, info[at]bod[dot]de | Anbieter: preigu Print on Demand.
