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  1. No Access

    Article

    Thermodynamic Modeling of Aqueous Guanidinium Chloride/Sodium l-Aspartate (Na-l-Asp) Mixtures

    In the present work, osmotic coefficients of aqueous mixtures of guanidinium chloride (GndmCl) and sodium l-aspartate (Na-l-Asp = (S)-aminobutanedioic acid sodium salt), previously determined at T = 298.15 K and ...

    Elena N. Tsurko, Christoph Held, Werner Kunz in Journal of Solution Chemistry (2023)

  2. Article

    Open Access

    Population genetic differentiation of the ubiquitous brooding coral Pocillopora acuta along Phuket Island reefs in the Andaman Sea, Thailand

    The widespread Indo-Pacific coral species Pocillopora acuta Lamarck, 1816 displays varying levels of asexual versus sexual reproduction, with strong repercussions on genetic diversity, connectivity and genetic st...

    Anna Fiesinger, Christoph Held, Frank Melzner, Lalita Putchim in BMC Ecology and Evolution (2023)

  3. Chapter

    Towards Sustainable Digitization

    Complexity and data quality of a project are strongly linked together. The higher the need for better data quality is, the more complex projects become. In digitization, various complexity factors have an impa...

    Daniel Blersch, Christoph Held in 3D Research Challenges in Cultural Heritag… (2023)

  4. Article

    Open Access

    The melting properties of D-α-glucose, D-β-fructose, D-sucrose, D-α-galactose, and D-α-xylose and their solubility in water: A revision

    Saccharides are still commonly isolated from biological feedstock by crystallization from aqueous solutions. Precise thermodynamic data on solubility are essential to optimize the downstream crystallization pr...

    Yeong Zen Chua, Hoang Tam Do, Aarti Kumar, Moritz Hallermann in Food Biophysics (2022)

  5. No Access

    Reference Work Entry In depth

    Liquid-Liquid Equilibria of Binary and Ternary Systems Containing Ionic Liquids

    Mark Bülow, Andreas Danzer, Christoph Held in Encyclopedia of Ionic Liquids (2022)

  6. Article

    Open Access

    Evolution and phylogeny of the deep-sea isopod families Desmosomatidae Sars, 1897 and Nannoniscidae Hansen, 1916  (Isopoda: Asellota)

    In the deep sea, the phylogeny and biogeography of only a few taxa have been well studied. Although more than 200 species in 32 genera have been described for the asellote isopod families Desmosomatidae Sars, ...

    Saskia Brix, Christoph Held, Stefanie Kaiser in Organisms Diversity & Evolution (2021)

  7. Article

    Open Access

    Presence of male mitochondria in somatic tissues and their functional importance at the whole animal level in the marine bivalve Arctica islandica

    Metazoans normally possess a single lineage of mitochondria inherited from the mother (♀-type mitochondria) while paternal mitochondria are absent or eliminated in fertilized eggs. In doubly uniparental inheri...

    Cyril Dégletagne, Doris Abele, Gernot Glöckner, Benjamin Alric in Communications Biology (2021)

  8. Article

    Open Access

    New thermodynamic activity-based approach allows predicting the feasibility of glycolysis

    Thermodynamic feasibility analyses help evaluating the feasibility of metabolic pathways. This is an important information used to develop new biotechnological processes and to understand metabolic processes i...

    Thorsten Greinert, Kristina Vogel, Thomas Maskow, Christoph Held in Scientific Reports (2021)

  9. No Access

    Living Reference Work Entry In depth

    Liquid-Liquid Equilibria of Binary and Ternary Systems Containing Ionic Liquids

    Mark Bülow, Andreas Danzer, Christoph Held in Encyclopedia of Ionic Liquids

  10. No Access

    Article

    A survival pack for esca** predation in the open ocean: amphipod – pteropod associations in the Southern Ocean

    Hyperiidean amphipods are a major prey for fish and seabirds. In the Southern Ocean, they are particularly abundant, with distributions ranging from the Polar Frontal Zone to Antarctic shelf waters. The species H...

    Charlotte Havermans, Wilhelm Hagen, Wolfgang Zeidler, Christoph Held in Marine Biodiversity (2019)

  11. No Access

    Article

    Fishing for scavengers: an integrated study to amphipod (Crustacea: Lysianassoidea) diversity of Potter Cove (South Shetland Islands, Antarctica)

    Amphipoda from the superfamily Lysianassoidea Dana, 1849 play an important role in Southern Ocean benthic food webs due to their high biomass, abundance and predominantly scavenging mode of feeding. Our knowle...

    Meike Anna Seefeldt, Alexander M. Weigand, Charlotte Havermans in Marine Biodiversity (2018)

  12. No Access

    Article

    A biodiversity survey of scavenging amphipods in a proposed marine protected area: the Filchner area in the Weddell Sea, Antarctica

    An integrative inventory of the amphipod scavenging fauna (Lysianassoidea), combining morphological identifications with DNA barcoding, is provided here for the Filchner area situated in the south-eastern Wedd...

    Charlotte Havermans, Meike Anna Seefeldt, Christoph Held in Polar Biology (2018)

  13. Article

    Open Access

    Different feeding strategies in Antarctic scavenging amphipods and their implications for colonisation success in times of retreating glaciers

    Scavenger guilds are composed of a variety of species, co-existing in the same habitat and sharing the same niche in the food web. Niche partitioning among them can manifest in different feeding strategies, e....

    Meike Anna Seefeldt, Gabriela Laura Campana, Dolores Deregibus in Frontiers in Zoology (2017)

  14. No Access

    Article

    Thermodynamics of enzyme-catalyzed esterifications: II. Levulinic acid esterification with short-chain alcohols

    Levulinic acid was esterified with methanol, ethanol, and 1-butanol with the final goal to predict the maximum yield of these equilibrium-limited reactions as function of medium composition. In a first step, s...

    Emrah Altuntepe, Vladimir N. Emel’yanenko in Applied Microbiology and Biotechnology (2017)

  15. No Access

    Article

    Thermodynamics of enzyme-catalyzed esterifications: I. Succinic acid esterification with ethanol

    Succinic acid (SA) was esterified with ethanol using Candida antarctica lipase B immobilized on acrylic resin at 40 and 50 °C. Enzyme activity in the reaction medium was assured prior to reaction experiments. Rea...

    Emrah Altuntepe, Thorsten Greinert in Applied Microbiology and Biotechnology (2017)

  16. Article

    Open Access

    Discrete phenotypes are not underpinned by genome-wide genetic differentiation in the squat lobster Munida gregaria (Crustacea: Decapoda: Munididae): a multi-marker study covering the Patagonian shelf

    DNA barcoding has demonstrated that many discrete phenotypes are in fact genetically distinct (pseudo)cryptic species. Genetically identical, isogenic individuals, however, can also express similarly different...

    Chen Wang, Shobhit Agrawal, Jürgen Laudien, Vreni Häussermann in BMC Evolutionary Biology (2016)

  17. No Access

    Article

    Isolation and characterization of 11 microsatellite markers from the squat lobster Munida gregaria (Decapoda: Galatheidae) around the Falkland Islands/Islas Malvinas

    Understanding phylogenetic relationship and patterns of contemporary population genetic structure is a prerequisite for conservation and management of potential fishery resources. In this study we report the ...

    Chen Wang, Christoph Held in Conservation Genetics Resources (2015)

  18. Article

    Open Access

    Gene expression profiling in gills of the great spider crab Hyas araneus in response to ocean acidification and warming

    Hypercapnia and elevated temperatures resulting from climate change may have adverse consequences for many marine organisms. While diverse physiological and ecological effects have been identified, changes in ...

    Lars Harms, Stephan Frickenhaus, Melanie Schiffer, Felix Christopher Mark in BMC Genomics (2014)

  19. No Access

    Article

    Thermodynamic Properties of Aqueous Glucose–Urea–Salt Systems

    In this work, the thermodynamic behavior of aqueous solutions containing the solutes NaCl, glucose, and/or urea is investigated. These substances are vital components for living bodies and further they are mai...

    Masoud Sadeghi, Christoph Held, Cyrus Ghotbi in Journal of Solution Chemistry (2014)

  20. Article

    Open Access

    Evidence of cryptic and pseudocryptic speciation in the Paracalanus parvus species complex (Crustacea, Copepoda, Calanoida)

    Many marine planktonic crustaceans such as copepods have been considered as widespread organisms. However, the growing evidence for cryptic and pseudo-cryptic speciation has emphasized the need of re-evaluatin...

    Astrid Cornils, Christoph Held in Frontiers in Zoology (2014)

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