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  1. Book ; Thesis: Methodenvergleichende Untersuchung zwischen immunhistochemischer und SSCP-Analyse zur Feststellung von p53-Mutationen bei malignen Ovarialtumoren

    Straub, Alexander

    1998  

    Author's details vorgelegt von Alexander Straub
    Language German
    Size 69 Bl., Ill., graph. Darst.
    Edition [Mikrofiche-Ausg.]
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Freiburg (Breisgau), Univ., Diss., 1999 (Nur beschränkt für den Austausch)
    HBZ-ID HT013114120
    Database Catalogue ZB MED Medicine, Health

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  2. Book ; Online ; Thesis: Essays in behavioral and labor economics

    Straub, Alexander [Verfasser]

    2019  

    Author's details Alexander Straub
    Keywords Wirtschaft ; Economics
    Subject code sg330
    Language English
    Publisher Gottfried Wilhelm Leibniz Universität Hannover
    Publishing place Hannover
    Document type Book ; Online ; Thesis
    Database Digital theses on the web

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  3. Article ; Online: Visual Analysis of Displacement Processes in Porous Media using Spatio-Temporal Flow Graphs.

    Straub, Alexander / Karadimitriou, Nikolaos / Reina, Guido / Frey, Steffen / Steeb, Holger / Ertl, Thomas

    IEEE transactions on visualization and computer graphics

    2023  Volume 30, Issue 1, Page(s) 759–769

    Abstract: We developed a new approach comprised of different visualizations for the comparative spatio-temporal analysis of displacement processes in porous media. We aim to analyze and compare ensemble datasets from experiments to gain insight into the influence ... ...

    Abstract We developed a new approach comprised of different visualizations for the comparative spatio-temporal analysis of displacement processes in porous media. We aim to analyze and compare ensemble datasets from experiments to gain insight into the influence of different parameters on fluid flow. To capture the displacement of a defending fluid by an invading fluid, we first condense an input image series to a single time map. From this map, we generate a spatio-temporal flow graph covering the whole process. This graph is further simplified to only reflect topological changes in the movement of the invading fluid. Our interactive tools allow the visual analysis of these processes by visualizing the graph structure and the context of the experimental setup, as well as by providing charts for multiple metrics. We apply our approach to analyze and compare ensemble datasets jointly with domain experts, where we vary either fluid properties or the solid structure of the porous medium. We finally report the generated insights from the domain experts and discuss our contribution's advantages, generality, and limitations.
    Language English
    Publishing date 2023-12-25
    Publishing country United States
    Document type Journal Article
    ISSN 1941-0506
    ISSN (online) 1941-0506
    DOI 10.1109/TVCG.2023.3326931
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Book ; Thesis: Supramolekulare Konzepte in der Hydroformylierung

    Straub, Alexander

    (Organische Chemie)

    2014  

    Author's details von Alexander Straub
    Series title Organische Chemie
    Language German
    Size V, 322 S., graph. Darst., 21 cm
    Edition 1. Aufl.
    Publisher Verl. Dr. Hut
    Publishing place München
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Univ., Diss.--Freiburg (Breisgau), 2014
    ISBN 3843916772 ; 9783843916776
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  5. Book ; Online ; Thesis: Analyse poröser Medien auf Basis von Kristalliten

    Straub, Alexander

    2013  

    Title variant Visual analytics of crystallite-based porous media
    Author's details Alexander Straub
    Language German
    Size Online-Ressource
    Publisher Universitätsbibliothek der Universität Stuttgart
    Publishing place Stuttgart
    Document type Book ; Online ; Thesis
    Thesis / German Habilitation thesis Stuttgart, Universität Stuttgart, Bachelorarbeit
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  6. Book ; Online ; Thesis: Analyse poröser Medien auf Basis von Kristalliten

    Straub, Alexander

    2013  

    Title variant Visual analytics of crystallite-based porous media
    Author's details Alexander Straub
    Language German
    Size Online-Ressource
    Publisher Universitätsbibliothek der Universität Stuttgart
    Publishing place Stuttgart
    Document type Book ; Online ; Thesis
    Thesis / German Habilitation thesis Stuttgart, Universität Stuttgart, Bachelorarbeit
    Database Former special subject collection: coastal and deep sea fishing

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  7. Book ; Online: Visual Analysis of Displacement Processes in Porous Media using Spatio-Temporal Flow Graphs

    Straub, Alexander / Karadimitriou, Nikolaos / Reina, Guido / Frey, Steffen / Steeb, Holger / Ertl, Thomas

    2023  

    Abstract: We developed a new approach comprised of different visualizations for the comparative spatio-temporal analysis of displacement processes in porous media. We aim to analyze and compare ensemble datasets from experiments to gain insight into the influence ... ...

    Abstract We developed a new approach comprised of different visualizations for the comparative spatio-temporal analysis of displacement processes in porous media. We aim to analyze and compare ensemble datasets from experiments to gain insight into the influence of different parameters on fluid flow. To capture the displacement of a defending fluid by an invading fluid, we first condense an input image series to a single time map. From this map, we generate a spatio-temporal flow graph covering the whole process. This graph is further simplified to only reflect topological changes in the movement of the invading fluid. Our interactive tools allow the visual analysis of these processes by visualizing the graph structure and the context of the experimental setup, as well as by providing charts for multiple metrics. We apply our approach to analyze and compare ensemble datasets jointly with domain experts, where we vary either fluid properties or the solid structure of the porous medium. We finally report the generated insights from the domain experts and discuss our contribution's advantages, generality, and limitations.
    Keywords Computer Science - Graphics ; Physics - Fluid Dynamics ; I.3.0
    Subject code 532
    Publishing date 2023-07-27
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: "CHicable" and "Clickable" Copolymers for Network Formation and Surface Modification.

    Straub, Alexander J / Scherag, Frank D / Kim, Hye In / Steiner, Mark-Steven / Brandstetter, Thomas / Rühe, Jürgen

    Langmuir : the ACS journal of surfaces and colloids

    2021  Volume 37, Issue 21, Page(s) 6510–6520

    Abstract: In this study, we present the generation of novel, multifunctional polymer networks through a combination of C,H-insertion cross-linking (CHic) and click chemistry. To this, copolymers consisting of ... ...

    Abstract In this study, we present the generation of novel, multifunctional polymer networks through a combination of C,H-insertion cross-linking (CHic) and click chemistry. To this, copolymers consisting of hydrophilic
    Language English
    Publishing date 2021-05-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.1c00669
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: “CHicable” and “Clickable” Copolymers for Network Formation and Surface Modification

    Straub, Alexander J / Scherag, Frank D / Kim, Hye In / Steiner, Mark-Steven / Brandstetter, Thomas / Rühe, Jürgen

    Langmuir. 2021 May 18, v. 37, no. 21

    2021  

    Abstract: In this study, we present the generation of novel, multifunctional polymer networks through a combination of C,H-insertion cross-linking (CHic) and click chemistry. To this, copolymers consisting of hydrophilic N,N-dimethylacrylamide as matrix component ... ...

    Abstract In this study, we present the generation of novel, multifunctional polymer networks through a combination of C,H-insertion cross-linking (CHic) and click chemistry. To this, copolymers consisting of hydrophilic N,N-dimethylacrylamide as matrix component and repeat units containing azide moieties, as well as benzophenone or anthraquinone groups, are generated. The benzophenone or anthraquinone groups allow photo-cross-linking, surface attachment or covalent immobilization of adjacent (bio)molecules through CHic reactions. The azide moieties either can react with available alkynes through conventional click reactions or can be activated to form nitrenes, which can also undergo CHic reactions. By choosing appropriate reaction conditions, the same polymer can be used to follow very different reaction paths, opening up a plethora of choices for the generation of functional polymer networks. In the exemplary presented case (“CHic–Click”), irradiation of the copolymers with UV-A light (λᵢᵣᵣ = 365 nm) leads to cross-linking (network formation) and surface attachment simultaneously. The azide units remain intact during this cross-linking step, and alkyne-modified (bio)molecules can be bound through click reactions. Biofunctionalization of the polymer network with alkynylated streptavidin, followed by application of biotin-conjugated antibody and a model analyte, highlights the potential of these surface architectures as a toolbox which can be adapted for diverse bioanalytical applications.
    Keywords alkynes ; anthraquinones ; antibodies ; azides ; benzophenones ; composite polymers ; crosslinking ; hydrophilicity ; irradiation ; streptavidin
    Language English
    Dates of publication 2021-0518
    Size p. 6510-6520.
    Publishing place American Chemical Society
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/acs.langmuir.1c00669
    Database NAL-Catalogue (AGRICOLA)

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  10. Book ; Online: Droplet-Local Line Integration for Multiphase Flow

    Straub, Alexander / Boblest, Sebastian / Karch, Grzegorz K. / Sadlo, Filip / Ertl, Thomas

    2022  

    Abstract: Line integration of stream-, streak-, and pathlines is widely used and popular for visualizing single-phase flow. In multiphase flow, i.e., where the fluid consists, e.g., of a liquid and a gaseous phase, these techniques could also provide valuable ... ...

    Abstract Line integration of stream-, streak-, and pathlines is widely used and popular for visualizing single-phase flow. In multiphase flow, i.e., where the fluid consists, e.g., of a liquid and a gaseous phase, these techniques could also provide valuable insights into the internal flow of droplets and ligaments and thus into their dynamics. However, since such structures tend to act as entities, high translational and rotational velocities often obfuscate their detail. As a remedy, we present a method for deriving a droplet-local velocity field, using a decomposition of the original velocity field removing translational and rotational velocity parts, and adapt path- and streaklines. Generally, the resulting integral lines are thus shorter and less tangled, which simplifies their analysis. We demonstrate and discuss the utility of our approach on droplets in two-phase flow data and visualize the removed velocity parts employing glyphs for context.
    Keywords Physics - Fluid Dynamics ; Computer Science - Graphics ; I.3.0
    Subject code 532
    Publishing date 2022-07-27
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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