LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 853

Search options

  1. Book ; Online: Blue Carbon im Nationalpark Niedersächsisches Wattenmeer

    Martens, Mike / Müller, Peter / Gösele, Clarisse / Jensen, Kai / Schuchardt, Bastian / Michaelis, Rune / Oltmanns, Bernd

    Grundlagen für eine Prüfung und Bewertung möglicher Maßnahmen zur Förderung der Kohlenstofffixierung in Salzwiesen

    (Berichte aus dem Nationalpark und der Biosphärenregion Niedersächsisches Wattenmeer ; 2021-02)

    2023  

    Institution Nationalparkverwaltung Niedersächsisches Wattenmeer
    Author's details Auftraggeber: Nationalparkverwaltung Niedersächsisches Wattenmeer ; Mike Martens, Peter Müller, Clarisse Gösele, Kai Jensen, Bastian Schuchardt ; Schriftleitung der Berichtereihe: Dr. Rune Michaelis ; Ansprechpartner für diesen Band: Bernd Oltmanns
    Series title Berichte aus dem Nationalpark und der Biosphärenregion Niedersächsisches Wattenmeer ; 2021-02
    Collection
    Subject code 551 ; 547
    Language German
    Size 1 Online-Ressource (53 Seiten)
    Publisher Nationalparkverwaltung Niedersächsisches Wattenmeer
    Publishing place Wilhelmshaven
    Publishing country Germany
    Document type Book ; Online
    Note Dieses Werk wird unter den Bedingungen der Creative Commons Lizenz Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International (CC BY-NC-ND 4.0) zur Verfügung gestellt (https://creativecommons.org/licenses/by-nc-nd/4.0/deed.de). ; Open Access
    HBZ-ID HT030615899
    DOI 10.4126/FRL01-006472657
    Database Repository for Life Sciences

    Full text online

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  2. Book ; Online: The Conditional Prediction Function

    Shi, Yushu / Martens, Michael

    A Novel Technique to Control False Discovery Rate for Complex Models

    2023  

    Abstract: In modern scientific research, the objective is often to identify which variables are associated with an outcome among a large class of potential predictors. This goal can be achieved by selecting variables in a manner that controls the the false ... ...

    Abstract In modern scientific research, the objective is often to identify which variables are associated with an outcome among a large class of potential predictors. This goal can be achieved by selecting variables in a manner that controls the the false discovery rate (FDR), the proportion of irrelevant predictors among the selections. Knockoff filtering is a cutting-edge approach to variable selection that provides FDR control. Existing knockoff statistics frequently employ linear models to assess relationships between features and the response, but the linearity assumption is often violated in real world applications. This may result in poor power to detect truly prognostic variables. We introduce a knockoff statistic based on the conditional prediction function (CPF), which can pair with state-of-art machine learning predictive models, such as deep neural networks. The CPF statistics can capture the nonlinear relationships between predictors and outcomes while also accounting for correlation between features. We illustrate the capability of the CPF statistics to provide superior power over common knockoff statistics with continuous, categorical, and survival outcomes using repeated simulations. Knockoff filtering with the CPF statistics is demonstrated using (1) a residential building dataset to select predictors for the actual sales prices and (2) the TCGA dataset to select genes that are correlated with disease staging in lung cancer patients.
    Keywords Statistics - Methodology ; Computer Science - Machine Learning ; Statistics - Machine Learning
    Subject code 310
    Publishing date 2023-10-07
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  3. Article ; Online: Metabolism and Toxicity of Fluorine Compounds.

    Kyzer, Jillian L / Martens, Marvin

    Chemical research in toxicology

    2021  Volume 34, Issue 3, Page(s) 678–680

    Abstract: Fluorine has many beneficial features and applications but can cause toxicity at high doses. Herein, we describe its chemical properties and benefits to agrochemical design as well as potential metabolic liabilities and exposure ... ...

    Abstract Fluorine has many beneficial features and applications but can cause toxicity at high doses. Herein, we describe its chemical properties and benefits to agrochemical design as well as potential metabolic liabilities and exposure assessment
    MeSH term(s) Fluorine Compounds/adverse effects ; Fluorine Compounds/metabolism ; Humans
    Chemical Substances Fluorine Compounds
    Language English
    Publishing date 2021-01-29
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 639353-6
    ISSN 1520-5010 ; 0893-228X
    ISSN (online) 1520-5010
    ISSN 0893-228X
    DOI 10.1021/acs.chemrestox.0c00439
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 2320: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  4. Book ; Online: Symbolic Regression for Space Applications

    Märtens, Marcus / Izzo, Dario

    Differentiable Cartesian Genetic Programming Powered by Multi-objective Memetic Algorithms

    2022  

    Abstract: Interpretable regression models are important for many application domains, as they allow experts to understand relations between variables from sparse data. Symbolic regression addresses this issue by searching the space of all possible free form ... ...

    Abstract Interpretable regression models are important for many application domains, as they allow experts to understand relations between variables from sparse data. Symbolic regression addresses this issue by searching the space of all possible free form equations that can be constructed from elementary algebraic functions. While explicit mathematical functions can be rediscovered this way, the determination of unknown numerical constants during search has been an often neglected issue. We propose a new multi-objective memetic algorithm that exploits a differentiable Cartesian Genetic Programming encoding to learn constants during evolutionary loops. We show that this approach is competitive or outperforms machine learned black box regression models or hand-engineered fits for two applications from space: the Mars express thermal power estimation and the determination of the age of stars by gyrochronology.
    Keywords Computer Science - Artificial Intelligence
    Subject code 006
    Publishing date 2022-06-13
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  5. Article: Surgical approach to forearm pronation deformity in patients with cerebral palsy: a systematic review.

    DE Lepeleere, Bram / Forward, Malcolm / Martens, Manuel / Plasschaert, Frank

    Acta orthopaedica Belgica

    2023  Volume 89, Issue 2, Page(s) 183–194

    Abstract: Background: Pronation deformity in patients with cerebral palsy can have a major impact on upper limb functionality. There is lack of consensus in the literature about the preferred surgical technique to address this deformity.: Study aim: To ... ...

    Abstract Background: Pronation deformity in patients with cerebral palsy can have a major impact on upper limb functionality. There is lack of consensus in the literature about the preferred surgical technique to address this deformity.
    Study aim: To evaluate and synthesize the outcome of different surgical techniques for pronation deformity in patients with cerebral palsy.
    Methodology: The databases MEDLINE and Embase were searched for publications up to December 2021. Articles were considered eligible for inclusion when the included patients had a pronation deformity caused by cerebral palsy and results of surgical intervention for pronation deformity were examined. Evaluation of the quality of the retrieved study was conducted using the MINORS tool. Meta-analysis was not possible due to the heterogeneity of interventions and reported outcomes.
    Results: Nineteen studies, involving 475 patients and eight different techniques were included. All studies reported gain of active supination in most patients. The effect of surgery on functional gain was less clear and there was a large heterogeneity of reported functional outcome measures. There were 46 reported complications. Overall quality of study design was poor, illustrated by the average MINOR score of 6.9/16. Overall, there is a high risk of bias due to poor internal and external validity of the studies.
    Conclusion: Despite positive reports on gain in supination and functionality after most procedures addressing pronation deformity in CP patients, no conclusions can be drawn concerning the preferred technique due to the low quality of the evidence.
    MeSH term(s) Humans ; Forearm/surgery ; Cerebral Palsy/complications ; Cerebral Palsy/surgery ; Pronation ; Upper Extremity ; Outcome Assessment, Health Care ; Supination
    Language English
    Publishing date 2023-11-04
    Publishing country Belgium
    Document type Systematic Review ; Journal Article
    ZDB-ID 210367-9
    ISSN 0001-6462 ; 1784-407X
    ISSN 0001-6462 ; 1784-407X
    DOI 10.52628/89.2.11048
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 37: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  6. Article ; Online: Jeanette Erdmann: 1965-2023.

    Aherrahrou, Redouane / Märtens, Marlon / Regitz-Zagrosek, Vera / Aherrahrou, Zouhair

    European heart journal

    2023  Volume 44, Issue 41, Page(s) 4306–4307

    Language English
    Publishing date 2023-11-06
    Publishing country England
    Document type Journal Article
    ZDB-ID 603098-1
    ISSN 1522-9645 ; 0195-668X
    ISSN (online) 1522-9645
    ISSN 0195-668X
    DOI 10.1093/eurheartj/ehad563
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1563: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 640: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  7. Article: Providing Adverse Outcome Pathways from the AOP-Wiki in a Semantic Web Format to Increase Usability and Accessibility of the Content.

    Martens, Marvin / Evelo, Chris T / Willighagen, Egon L

    Applied in vitro toxicology

    2022  Volume 8, Issue 1, Page(s) 2–13

    Abstract: Introduction: The AOP-Wiki is the main platform for the development and storage of adverse outcome pathways (AOPs). These AOPs describe mechanistic information about toxicodynamic processes and can be used to develop effective risk assessment strategies. ...

    Abstract Introduction: The AOP-Wiki is the main platform for the development and storage of adverse outcome pathways (AOPs). These AOPs describe mechanistic information about toxicodynamic processes and can be used to develop effective risk assessment strategies. However, it is challenging to automatically and systematically parse, filter, and use its contents. We explored solutions to better structure the AOP-Wiki content, and to link it with chemical and biological resources. Together, this allows more detailed exploration, which can be automated.
    Materials and methods: We converted the complete AOP-Wiki content into resource description framework (RDF) triples. We used >20 ontologies for the semantic annotation of property-object relations, including the Chemical Information Ontology, Dublin Core, and the AOP Ontology.
    Results: The resulting RDF contains >122,000 triples describing 158 unique properties of >15,000 unique subjects. Furthermore, >3500 link-outs were added to 12 chemical databases, and >7500 link-outs to 4 gene and protein databases. The AOP-Wiki RDF has been made available at https://aopwiki.rdf.bigcat-bioinformatics.org.
    Discussion: SPARQL queries can be used to answer biological and toxicological questions, such as listing measurement methods for all Key Events leading to an Adverse Outcome of interest. The full power that the use of this new resource provides becomes apparent when combining the content with external databases using federated queries.
    Conclusion: Overall, the AOP-Wiki RDF allows new ways to explore the rapidly growing AOP knowledge and makes the integration of this database in automated workflows possible, making the AOP-Wiki more FAIR.
    Language English
    Publishing date 2022-03-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2888702-5
    ISSN 2332-1539 ; 2332-1512
    ISSN (online) 2332-1539
    ISSN 2332-1512
    DOI 10.1089/aivt.2021.0010
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  8. Book: Einmalberatung

    Märtens, Michael

    Chancen, therapeutische Grundlagen und Grenzen

    (Edition Psychologie und Pädagogik)

    1999  

    Author's details Michael M. Märtens
    Series title Edition Psychologie und Pädagogik
    Keywords Einmalberatung
    Language German
    Size 144 S.
    Publisher Grünewald
    Publishing place Mainz
    Publishing country Germany
    Document type Book
    HBZ-ID HT011099081
    ISBN 3-7867-2213-7 ; 978-3-7867-2213-7
    Database Catalogue ZB MED Medicine, Health

    More links

    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Shelf markLoan statusLocation
    2000 A 907 order for loan Magazin

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

  9. Article: Dauerverlustbetriebe im kommunalen Querverbund - unterliegt die gesetzliche Regelung dem unionsrechtlichen Durchführungsverbot für "neue" Beihilfen?

    Märtens, Markus

    Nationale und internationale Unternehmensbesteuerung in der Rechtsordnung : Festschrift für Dietmar Gosch zum Ausscheiden aus dem Richteramt , p. 279-291

    2016  , Page(s) 279–291

    Author's details Markus Märtens
    Language German
    Publisher C.H. Beck
    Publishing place München
    Document type Article
    ISBN 3-406-68582-X ; 978-3-406-68582-8
    Database ECONomics Information System

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  10. Article: Verfassungsmäßigkeit der Zinsschranke

    Märtens, Markus

    Der Betrieb : mit Recht Innovation sichern Vol. 69, No. 7 , p. 382-383

    2016  Volume 69, Issue 7, Page(s) 382–383

    Author's details RiBFH Dr. Markus Märtens
    Language German
    Publisher Handelsblatt Fachmedien
    Publishing place Düsseldorf
    Document type Article
    ZDB-ID 879-5
    ISSN 0005-9935
    Database ECONomics Information System

    More links

    Kategorien

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

To top