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  1. Book ; Online: Sequential disaster forensics

    Mendoza, Marina / Schwarze, Reimund

    an application to floods in the city of Grimma

    (UFZ discussion papers ; 3/2018)

    2018  

    Abstract: Citizen Science bedeutet Engagement von Bürgerinnen und Bürgern in der konkreten Bearbeitung wissenschaftlicher Themen. Diese sind vielfach von hoher gesellschaftlicher Relevanz. Als Form der aktiven Teilhabe der Öffentlichkeit bei ... ...

    Institution Helmholtz-Zentrum für Umweltforschung
    Author's details Helmholtz-Zentrum für Umweltforschung - UFZ ; Marina Mendoza, Reimund Schwarze
    Series title UFZ discussion papers ; 3/2018
    Collection
    Abstract Citizen Science bedeutet Engagement von Bürgerinnen und Bürgern in der konkreten Bearbeitung wissenschaftlicher Themen. Diese sind vielfach von hoher gesellschaftlicher Relevanz. Als Form der aktiven Teilhabe der Öffentlichkeit bei Problemlösungsprozessen erlangt Citizen Science in Deutschland verstärkt sowohl wissenschaftliche, als auch gesellschaftliche und politische Bedeutung. Dies bietet Chancen, das strukturelle, soziale, wissenschaftliche und politische Innovationspotenzial von Citizen Science stärker in die Forschung zu integrieren. [...]
    Subject code 630
    Language English
    Size 1 Online-Ressource (48 Seiten), Illustrationen
    Publisher Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Publishing place Leipzig
    Publishing country Germany
    Document type Book ; Online
    Remark Elektronischer Volltext
    HBZ-ID HT019941958
    DOI 10.4126/FRL01-006412951
    Database Repository for Life Sciences

    Full text online

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    Inter-library loan at ZB MED

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  2. Book ; Online: Sequential disaster forensics

    Mendoza, Marina / Schwarze, Reimund

    an application to floods in the city of Grimma

    (UFZ discussion papers ; 3/2018)

    2018  

    Abstract: Citizen Science bedeutet Engagement von Bürgerinnen und Bürgern in der konkreten Bearbeitung wissenschaftlicher Themen. Diese sind vielfach von hoher gesellschaftlicher Relevanz. Als Form der aktiven Teilhabe der Öffentlichkeit bei ... ...

    Institution Helmholtz-Zentrum für Umweltforschung
    Author's details Helmholtz-Zentrum für Umweltforschung - UFZ ; Marina Mendoza, Reimund Schwarze
    Series title UFZ discussion papers ; 3/2018
    Collection
    Abstract Citizen Science bedeutet Engagement von Bürgerinnen und Bürgern in der konkreten Bearbeitung wissenschaftlicher Themen. Diese sind vielfach von hoher gesellschaftlicher Relevanz. Als Form der aktiven Teilhabe der Öffentlichkeit bei Problemlösungsprozessen erlangt Citizen Science in Deutschland verstärkt sowohl wissenschaftliche, als auch gesellschaftliche und politische Bedeutung. Dies bietet Chancen, das strukturelle, soziale, wissenschaftliche und politische Innovationspotenzial von Citizen Science stärker in die Forschung zu integrieren. [...]
    Subject code 630
    Language English
    Size 1 Online-Ressource (48 Seiten), Illustrationen
    Publisher Helmholtz-Zentrum für Umweltforschung GmbH - UFZ
    Publishing place Leipzig
    Publishing country Germany
    Document type Book ; Online
    Remark Elektronischer Volltext
    HBZ-ID HT019941958
    DOI 10.4126/FRL01-006412951
    Database Repository for Life Sciences

    Full text online

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    Inter-library loan at ZB MED

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  3. Book ; Online: Plant Proteases

    Diaz-Mendoza, Mercedes / Guiamet, Juan / Van Breusegem, Frank

    2020  

    Keywords Science: general issues ; Botany & plant sciences ; Plant Proteases ; Protease Inhibitors ; Protease Substrates ; Proteolysis ; Protein Turnover
    Size 1 electronic resource (157 pages)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT021229969
    ISBN 9782889633999 ; 2889633993
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  4. Article ; Online: Molecular, immunological, and physiological evidences of a sphingosine-activated plasma membrane Ca

    Pérez-Gordones, M C / Ramírez-Iglesias, J R / Benaim, G / Mendoza, M

    Parasitology research

    2024  Volume 123, Issue 3, Page(s) 166

    Abstract: The hemoparasite Trypanosoma equiperdum belongs to the Trypanozoon subgenus and includes several species that are pathogenic to animals and humans in tropical and subtropical areas across the world. As with all eukaryotic organisms, ... ...

    Abstract The hemoparasite Trypanosoma equiperdum belongs to the Trypanozoon subgenus and includes several species that are pathogenic to animals and humans in tropical and subtropical areas across the world. As with all eukaryotic organisms, Ca
    MeSH term(s) Animals ; Humans ; Sphingosine/pharmacology ; Trypanosoma ; Verapamil/pharmacology ; Cell Membrane/metabolism ; Calcium/metabolism ; Mammals
    Chemical Substances Sphingosine (NGZ37HRE42) ; Verapamil (CJ0O37KU29) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2024-03-20
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 284966-5
    ISSN 1432-1955 ; 0932-0113 ; 0044-3255
    ISSN (online) 1432-1955
    ISSN 0932-0113 ; 0044-3255
    DOI 10.1007/s00436-024-08188-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Uh II Zs.124: Show issues Location:
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    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Calculation method for the conductance of mesoscopic systems: assembly of Tight Binding Hamiltonians with spin effects-revisited.

    Silva, Felipe E F / Mendoza, Michel

    Journal of physics. Condensed matter : an Institute of Physics journal

    2023  Volume 35, Issue 22

    Abstract: We discretize the Schrödinger equation in the approximation of the effective mass for the two-dimensional electron gas of GaAs, without magnetic field and on the other hand, with magnetic field. This discretization leads naturally to Tight Binding (TB) ... ...

    Abstract We discretize the Schrödinger equation in the approximation of the effective mass for the two-dimensional electron gas of GaAs, without magnetic field and on the other hand, with magnetic field. This discretization leads naturally to Tight Binding (TB) Hamiltonians in the approximation of the effective mass. An analysis of this discretization allows us to gain insight into the role of site and hopping energies, which allows us to model the TB Hamiltonian assembly with spin: Zeeman and spin-orbit coupling effects, especially the case Rashba. With this tool we can assemble Hamiltonians of quantum boxes, Aharanov-Bohm interferometers, anti-dots lattices and effects of imperfections, as well as disorder in the system. The extension to mount quantum billiards is natural. We also explain here how to adapt the recursive equations of Green's functions for the case of spin modes, apart from transverse modes, for the calculation of conductance in these mesoscopic systems. The assembled Hamiltonians allow to identify the matrix elements (depending on the different parameters of the system) associated with splitting or spin flipping, which gives a starting point to model specific systems of interest, manipulating certain parameters. In general, the approach of this work allows us to clearly see the relationship between the wave and matrix description of quantum mechanics. We discuss here also, the extension of the method for 1D and 3D systems, for the extension apart from the first neighbors and for the inclusion of other types of interaction. The way we approach the method, has the objective of showing how specifically the site and hopping energies change in the presence of new interactions. This is very important in the case of spin interactions, because by looking at the matrix elements (site or hopping) we can directly identify the conditions that can lead to splitting, flipping or a mixture of these effects. Which is essential for the design of devices based on spintronics. Finally, we discuss spin-conductance modulation (Rashba spin precession) for the states of an open quantum dot (resonant states). Unlike the case of a quantum wire, the spin-flipping observed in the conductance is not perfectly sinusoidal, there is an envelope that modulates the sinusoidal component, which depends on the discrete-continuous coupling of the resonant states.
    Language English
    Publishing date 2023-03-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472968-4
    ISSN 1361-648X ; 0953-8984
    ISSN (online) 1361-648X
    ISSN 0953-8984
    DOI 10.1088/1361-648X/acc3e9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Author reply.

    Mendoza, Manel / Bonacina, Erika / Carreras, Elena / Suy, Anna

    BJOG : an international journal of obstetrics and gynaecology

    2024  Volume 131, Issue 4, Page(s) 528–529

    Language English
    Publishing date 2024-01-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 2000931-8
    ISSN 1471-0528 ; 0306-5456 ; 1470-0328
    ISSN (online) 1471-0528
    ISSN 0306-5456 ; 1470-0328
    DOI 10.1111/1471-0528.17758
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Um I Zs.121: Show issues Location:
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    ab Jg. 2022: Lesesaal (EG)

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  7. Article ; Online: Detection and impact estimation of social bots in the Chilean Twitter network.

    Mendoza, Marcelo / Providel, Eliana / Santos, Marcelo / Valenzuela, Sebastián

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 6525

    Abstract: The rise of bots that mimic human behavior represents one of the most pressing threats to healthy information environments on social media. Many bots are designed to increase the visibility of low-quality content, spread misinformation, and artificially ... ...

    Abstract The rise of bots that mimic human behavior represents one of the most pressing threats to healthy information environments on social media. Many bots are designed to increase the visibility of low-quality content, spread misinformation, and artificially boost the reach of brands and politicians. These bots can also disrupt civic action coordination, such as by flooding a hashtag with spam and undermining political mobilization. Social media platforms have recognized these malicious bots' risks and implemented strict policies and protocols to block automated accounts. However, effective bot detection methods for Spanish are still in their early stages. Many studies and tools used for Spanish are based on English-language models and lack performance evaluations in Spanish. In response to this need, we have developed a method for detecting bots in Spanish called Botcheck. Botcheck was trained on a collection of Spanish-language accounts annotated in Twibot-20, a large-scale dataset featuring thousands of accounts annotated by humans in various languages. We evaluated Botcheck's performance on a large set of labeled accounts and found that it outperforms other competitive methods, including deep learning-based methods. As a case study, we used Botcheck to analyze the 2021 Chilean Presidential elections and discovered evidence of bot account intervention during the electoral term. In addition, we conducted an external validation of the accounts detected by Botcheck in the case study and found our method to be highly effective. We have also observed differences in behavior among the bots that are following the social media accounts of official presidential candidates.
    MeSH term(s) Humans ; Social Media ; Chile ; Software ; Communication ; Politics
    Language English
    Publishing date 2024-03-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-57227-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Complete genome sequences of

    Hassan, Hosni M / Mendoza, Mary / Dickey, Allison N

    Microbiology resource announcements

    2024  Volume 13, Issue 4, Page(s) e0114023

    Abstract: The gut microflora contains a diverse microbial population that is influenced by the host and the environment. We report the complete circular genome sequences ... ...

    Abstract The gut microflora contains a diverse microbial population that is influenced by the host and the environment. We report the complete circular genome sequences of
    Language English
    Publishing date 2024-03-19
    Publishing country United States
    Document type Journal Article
    ISSN 2576-098X
    ISSN (online) 2576-098X
    DOI 10.1128/mra.01140-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Cardiovascular disrupting effects of bisphenols, phthalates, and parabens related to endothelial dysfunction: Review of toxicological and pharmacological mechanisms.

    Lemini, Cristina / Silveyra, Patricia / Segovia-Mendoza, Mariana

    Environmental toxicology and pharmacology

    2024  Volume 107, Page(s) 104407

    Abstract: Cardiovascular diseases (CVDs) are the leading cause of death worldwide. CVDs are promoted by the accumulation of lipids and immune cells in the endothelial space resulting in endothelial dysfunction. Endothelial cells are important components of the ... ...

    Abstract Cardiovascular diseases (CVDs) are the leading cause of death worldwide. CVDs are promoted by the accumulation of lipids and immune cells in the endothelial space resulting in endothelial dysfunction. Endothelial cells are important components of the vascular endothelium, that regulate the vascular flow. The imbalance in the production of vasoactive substances results in the loss of vascular homeostasis, leading the endothelial dysfunction. Thus, endothelial dysfunction plays an essential role in the development of atherosclerosis and can be triggered by different cardiovascular risk factors. On the other hand, the 17β-estradiol (E2) hormone has been related to the regulation of vascular tone through different mechanisms. Several compounds can elicit estrogenic actions similar to those of E2. For these reasons, they have been called endocrine-disrupting compounds (EDCs). This review aims to provide up-to-date information about how different EDCs affect endothelial function and their mechanistic roles in the context of CVDs.
    MeSH term(s) Humans ; Parabens/toxicity ; Endothelial Cells ; Estradiol ; Cardiovascular Diseases/chemically induced ; Endothelium, Vascular/physiology ; Endocrine Disruptors/toxicity ; Phthalic Acids
    Chemical Substances Parabens ; Estradiol (4TI98Z838E) ; phthalic acid (6O7F7IX66E) ; Endocrine Disruptors ; Phthalic Acids
    Language English
    Publishing date 2024-02-28
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 1318302-3
    ISSN 1872-7077 ; 1382-6689
    ISSN (online) 1872-7077
    ISSN 1382-6689
    DOI 10.1016/j.etap.2024.104407
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4490: Show issues Location:
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  10. Article ; Online: Knowledge Distillation in Video-Based Human Action Recognition: An Intuitive Approach to Efficient and Flexible Model Training.

    Camarena, Fernando / Gonzalez-Mendoza, Miguel / Chang, Leonardo

    Journal of imaging

    2024  Volume 10, Issue 4

    Abstract: Training a model to recognize human actions in videos is computationally intensive. While modern strategies employ transfer learning methods to make the process more efficient, they still face challenges regarding flexibility and efficiency. Existing ... ...

    Abstract Training a model to recognize human actions in videos is computationally intensive. While modern strategies employ transfer learning methods to make the process more efficient, they still face challenges regarding flexibility and efficiency. Existing solutions are limited in functionality and rely heavily on pretrained architectures, which can restrict their applicability to diverse scenarios. Our work explores knowledge distillation (KD) for enhancing the training of self-supervised video models in three aspects: improving classification accuracy, accelerating model convergence, and increasing model flexibility under regular and limited-data scenarios. We tested our method on the UCF101 dataset using differently balanced proportions: 100%, 50%, 25%, and 2%. We found that using knowledge distillation to guide the model's training outperforms traditional training without affecting the classification accuracy and while reducing the convergence rate of model training in standard settings and a data-scarce environment. Additionally, knowledge distillation enables cross-architecture flexibility, allowing model customization for various applications: from resource-limited to high-performance scenarios.
    Language English
    Publishing date 2024-03-30
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2824270-1
    ISSN 2313-433X ; 2313-433X
    ISSN (online) 2313-433X
    ISSN 2313-433X
    DOI 10.3390/jimaging10040085
    Database MEDical Literature Analysis and Retrieval System OnLINE

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