Search Results - "Kaufhold, Stephan"

Chimpanzees (Pan troglodytes) strategically manipulate their environment to deny conspecifics access to food by Kaufhold, Stephan P., Sánchez-Amaro, Alejandro, Tan, Jingzhi, Fernandez-Navarro, Sofia, Atencia, Rebeca, Rossano, Federico

“…Humans modify their environment to grant or prevent others’ access to valuable resources, for example by using locks. We tested whether sanctuary-living…”
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Determining the extent of bentonite alteration at the bentonite/cement interface by Kaufhold, Stephan, Dohrmann, Reiner, Ufer, Kristian

“…Bentonite is investigated as a geotechnical barrier material in repositories for high-level radioactive waste (HLRW). One of the most important research topics…”
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COMPREHENSIVE EXAMINATION OF DEHYDROXYLATION OF KAOLINITE, DISORDERED KAOLINITE, AND DICKITE: EXPERIMENTAL STUDIES AND DENSITY FUNCTIONAL THEORY by Izadifar, Mohammadreza, Thissen, Peter, Steudel, Annett, Kleeberg, Reinhard, Kaufhold, Stephan, Kaltenbach, Jonas, Schuhmann, Rainer, Dehn, Frank, Emmerich, Katja

“…Kaolins and clays are important raw materials for production of supplementary cementitious materials and geopolymer precursors through thermal activation by…”
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The role of allophane nano-structure and Fe oxide speciation for hosting soil organic matter in an allophanic Andosol by Filimonova, Svetlana, Kaufhold, Stephan, Wagner, Friedrich E., Häusler, Werner, Kögel-Knabner, Ingrid

“…We evaluated the impact of nano-structural characteristics of allophanic compounds and Fe oxide speciation on the efficiency of organo-mineral interactions in…”
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Potential limitation of cryogenic vacuum extractions and spiked experiments by Gaj, Marcel, Kaufhold, Stephan, McDonnell, Jeffrey J.

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Why intergroup variation matters for understanding behaviour by Kaufhold, Stephan P, van Leeuwen, Edwin J C

“…Intergroup variation (IGV) refers to variation between different groups of the same species. While its existence in the behavioural realm has been expected and…”
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A combined IR and XRD study of natural well crystalline goethites (α-FeOOH) by Kaufhold, Stephan, Ufer, Kristian, Hein, Melanie, Götze, Niko, Dohrmann, Reiner

“…Goethite (α-FeOOH) is one of the most abundant minerals on the Earth surface, occurring in temperate, tropical and equatorial climates. Fe in goethite can be…”
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Cement-bentonite-iron interactions on small scale tests for testing performance of bentonites as a barrier in high-level radioactive waste repository concepts by Balmer, Sandra, Kaufhold, Stephan, Dohrmann, Reiner

“…Nuclear power plants produce high-level radioactive waste, which has to be stored. Many countries plan to encapsulate their high-level radioactive waste (HLRW)…”
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Gibbons exploit information about what a competitor can see by Sánchez-Amaro, Alejandro, Tan, Jingzhi, Kaufhold, Stephan P., Rossano, Federico

“…How much nonhuman animals understand about seeing has been the focus of comparative cognition research for decades. Many social primates (and other species)…”
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How Environmental Unpredictability and Harshness Affect Chimpanzees (Pan troglodytes) in Risk-Choice and Temporal Discounting Tasks by Sánchez-Amaro, Alejandro, Tan, Jingzhi, Kaufhold, Stephan P., Fernández-Navarro, Sofia, Rossano, Federico

“…Animals need to adjust their decision-making strategies to the ecological challenges of their environment. Variation in ecological unpredictability and…”
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Adsorption Study and Removal of Basic Fuchsin Dye from Medical Laboratory Wastewater Using Local Natural Clay by Radha, Fuad Hama Sharif, Shwan, Dler M. S., Kaufhold, Stephan

“…Local natural clay from Sulaimani zone-Takiya (TKC), Kurdistan Region of Iraq, was characterized and used for the removal of basic fuchsin (BF) dye from…”
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Removal of Barium, Cobalt, Strontium, and Zinc from Solution by Natural and Synthetic Allophane Adsorbents by Baldermann, Andre, Grießbacher, Andrea, Baldermann, Claudia, Purgstaller, Bettina, Letofsky-Papst, Ilse, Kaufhold, Stephan, Dietzel, Martin

“…The capacity and mechanism of the adsorption of aqueous barium (Ba), cobalt (Co), strontium (Sr), and zinc (Zn) by Ecuadorian (NatAllo) and synthetic…”
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Mineralogical Analysis of Bentonite from the ABM5 Heater Experiment at Äspö Hard Rock Laboratory, Sweden by Stephan Kaufhold, Reiner Dohrmann, Kristian Ufer, Daniel Svensson, Patrik Sellin

“…The present study reports on the analysis of all blocks of the ABM5 test, which is a medium scale bentonite buffer deposition test. In contrast to similar…”
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The High Efficiency of Anionic Dye Removal Using Ce-Al13/Pillared Clay from Darbandikhan Natural Clay by K. Aziz, Bakhtyar, M. Salh, Dler, Kaufhold, Stephan, Bertier, Pieter

“…Natural clay from Darbandikhan (DC) was evaluated in its natural form, after acid activation (ADC), and after pillaring (PILDC) as a potential adsorbent for…”
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Efficient Removal of Basic Fuchsin from Synthetic Medical Wastewater and Competitive Adsorption in the Mixture by Ahmed, Harez, Salihi, Kareem, Kaufhold, Stephan, Aziz, Bakhtyar, Radha, Musa Hama, Karim, Lava, Nooralddin, Hevi

“…The Ziehl-Neelsen stain is a mixture of Basic Fuchsin (BF), phenol (Ph), and methylene blue. It is used to stain the cell walls of Mycobacterium species. In…”
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Correction to: Comprehensive Examination of Dehydroxylation of Kaolinite, Disordered Kaolinite, and Dickite: experimental Studies and Density Functional Theory by Izadifar, Mohammadreza, Thissen, Peter, Steudel, Annett, Kleeberg, Reinhard, Kaufhold, Stephan, Kaltenbach, Jonas, Schuhmann, Rainer, Dehn, Frank, Emmerich, Katja

“…A Correction to this paper has been published: https://doi.org/10.1007/s42860-020-00082-w…”
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In Situ Measurements of the Hydration Behavior of Compacted Milos (SD80) Bentonite by Wet-Cell X-ray Diffraction in an Opalinus Clay Pore Water and a Diluted Cap Rock Brine by Tobias Manzel, Carolin Podlech, Georg Grathoff, Stephan Kaufhold, Laurence N. Warr

“…Compacted bentonite is currently being considered as a suitable backfill material for sealing underground repositories for radioactive waste as part of a…”
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Editorial for Special Issue “Clay Mineral Transformations after Bentonite/Clayrocks and Heater/Water Interactions from Lab and Large-Scale Tests” by Ana María Fernández, Stephan Kaufhold, Markus Olin, Lian-Ge Zheng, Paul Wersin, James Wilson

“…This Special Issue “Clay Mineral Transformations after Bentonite/Clayrocks and Heater/Water Interactions from Lab and Large-Scale Tests” covers a broad range…”
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The pH of aqueous bentonite suspensions by Kaufhold, Stephan, Dohrmann, Reiner, Koch, Dietrich, Houben, Georg

“…The pH of aqueous bentonite suspensions is known to be influenced by carbonates present even in minor amounts. On the other hand, at high solid:liquid ratios…”
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Chimpanzees behave prosocially in a group-specific manner by van Leeuwen, Edwin J C, DeTroy, Sarah E, Kaufhold, Stephan P, Dubois, Clara, Schütte, Sebastian, Call, Josep, Haun, Daniel B M

“…Chimpanzees act cooperatively in the wild, but whether they afford benefits to others, and whether their tendency to act prosocially varies across communities,…”
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