78 results on '"Kachel, S."'
Search Results
2. Helicopter main rotor FSI analysis using parametric blade model as an application for multidisciplinary optimization
- Author
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Kocjan, J, primary, Kachel, S, additional, and Rogólski, R, additional
- Published
- 2024
- Full Text
- View/download PDF
3. In-Situ Raman Study of the Intercalation of Bis(trifluoromethylsulfonyl)imid Ions into Graphite inside a Dual-Ion Cell
- Author
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Balabajew, M., Reinhardt, H., Bock, N., Duchardt, M., Kachel, S., Hampp, N., and Roling, B.
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- 2016
- Full Text
- View/download PDF
4. Coat formation of surface-active proteins on aqueous surfaces during drying
- Author
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Nijdam, J., Trouillet, V., Kachel, S., Scharfer, P., Schabel, W., and Kind, M.
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- 2014
- Full Text
- View/download PDF
5. The Combinatorial-Cyclic method of Optimization (CCOpt) in a scaled or full sized prototyping and virtual prototyping
- Author
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Zietarski, S, primary, Kachel, S, additional, Kozakiewicz, A, additional, and Wrzesien, S, additional
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- 2014
- Full Text
- View/download PDF
6. Peer Review #1 of "Factors affecting livestock depredation by snow leopards (Panthera uncia) in the Himalayan region of Nepal (v0.1)"
- Author
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Kachel, S, additional
- Published
- 2021
- Full Text
- View/download PDF
7. Right on track?
- Author
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Hofman, Maarten P. G., Hayward, M. W., Heim, M., Marchand, P., Rolandsen, C. M., Mattisson, Jenny, Urbano, F., Heurich, M., Mysterud, A., Melzheimer, J., Morellet, N., Voigt, Ulrich, Allen, B. L., Gehr, Benedikt, Rouco Zufiaurre, Carlos, Ullmann, Wiebke (Dr.), Holand, O., Jorgensen, n H., Steinheim, G., Cagnacci, F., Kroeschel, M., Kaczensky, P., Buuveibaatar, B., Payne, J. C., Palmegiani, I, Jerina, K., Kjellander, P., Johansson, O., LaPoint, S., Bayrakcismith, R., Linnell, J. D. C., Zaccaroni, M., Jorge, M. L. S., Oshima, J. E. F., Songhurst, A., Fischer, C., Mc Bride, R. T., Thompson, J. J., Streif, S., Sandfort, R., Bonenfant, Christophe, Drouilly, M., Klapproth, M., Zinner, Dietmar, Yarnell, Richard, Stronza, A., Wilmott, L., Meisingset, E., Thaker, Maria, Vanak, A. T., Nicoloso, S., Graeber, R., Said, S., Boudreau, M. R., Devlin, A., Hoogesteijn, R., May-Junior, J. A., Nifong, J. C., Odden, J., Quigley, H. B., Tortato, F., Parker, D. M., Caso, A., Perrine, J., Tellaeche, C., Zieba, F., Zwijacz-Kozica, T., Appel, C. L., Axsom, I, Bean, W. T., Cristescu, B., Periquet, S., Teichman, K. J., Karpanty, S., Licoppe, A., Menges, V, Black, K., Scheppers, Thomas L., Schai-Braun, S. C., Azevedo, F. C., Lemos, F. G., Payne, A., Swanepoel, L. H., Weckworth, B., Berger, A., Bertassoni, Alessandra, McCulloch, G., Sustr, P., Athreya, V, Bockmuhl, D., Casaer, J., Ekori, A., Melovski, D., Richard-Hansen, C., van de Vyver, D., Reyna-Hurtado, R., Robardet, E., Selva, N., Sergiel, A., Farhadinia, M. S., Sunde, P., Portas, R., Ambarli, Hüseyin, Berzins, R., Kappeler, P. M., Mann, G. K., Pyritz, L., Bissett, C., Grant, T., Steinmetz, R., Swedell, Larissa, Welch, R. J., Armenteras, D., Bidder, O. R., Gonzalez, T. M., Rosenblatt, A., Kachel, S., and Balkenhol, N.
- Subjects
ddc:590 ,Institut für Biochemie und Biologie - Abstract
Satellite telemetry is an increasingly utilized technology in wildlife research, and current devices can track individual animal movements at unprecedented spatial and temporal resolutions. However, as we enter the golden age of satellite telemetry, we need an in-depth understanding of the main technological, species-specific and environmental factors that determine the success and failure of satellite tracking devices across species and habitats. Here, we assess the relative influence of such factors on the ability of satellite telemetry units to provide the expected amount and quality of data by analyzing data from over 3,000 devices deployed on 62 terrestrial species in 167 projects worldwide. We evaluate the success rate in obtaining GPS fixes as well as in transferring these fixes to the user and we evaluate failure rates. Average fix success and data transfer rates were high and were generally better predicted by species and unit characteristics, while environmental characteristics influenced the variability of performance. However, 48% of the unit deployments ended prematurely, half of them due to technical failure. Nonetheless, this study shows that the performance of satellite telemetry applications has shown improvements over time, and based on our findings, we provide further recommendations for both users and manufacturers.
- Published
- 2019
8. Right on track? Performance of satellite telemetry in terrestrial wildlife research
- Author
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Hayward, M.W., Heim, M., Marchand, P., Rolandsen, C.M., Mattisson, J., Urbano, F., Heurich, M., Mysterud, A., Melzheimer, J., Morellet, Nicolas, Voigt, U., Allen, B.L., Gehr, B., Rouco, C., Ullmann, W., Holand, O., Jorgensen, N.H., Steinheim, G., Cagnacci, F., Kroeschel, M., Kaczensky, P., Buuveibaatar, B., Payne, J.C., Palmegiani, I., Jerina, K., Kjellander, P., Johansson, O., LaPoint, S., Bayrakcismith, R., Linnell, J.D.C., Zaccaroni, M., Jorge, M.L.S., Oshima, J.E.F., Songhurst, A., Fischer, C., Mc Bride, R.T., Thompson, J.J., Streif, S., Sandfort, R., Bonenfant, C., Drouilly, M., Klapproth, M., Zinner, D., Yarnell, R., Stronza, A., Wilmott, L., Meisingset, E., Thaker, M., Vanak, A.T., Nicoloso, S., Graeber, R., Said, S., Boudreau, M.R., Devlin, A., Hoogesteijn, R., May-Junior, J.A., Nifong, J.C., Odden, J., Quigley, H.B., Tortato, F., Parker, D.M., Caso, A., Perrine, J., Tellaeche, C., Zieba, F., Zwijacz-Kozica, T., Appel, C. L., Axsom, I., Bean, W.T., Cristescu, B., Periquet, S., Teichman, K.J., Karpanty, S., Licoppe, A., Menges, V., Black, K., Scheppers, T.L., Schai-Braun, S.C., Azevedo, F.C., Lemos, F.G., Payne, A., Swanepoel, L.H., Weckworth, B., Berger, A., Bertassoni, A., McCulloch, G., Sustr, P., Athreya, V., Bockmuhl, D., Casaer, J., Ekori, A., Melovski, D., Richard-Hansen, C., van de Vyver, D., Reyna-Hurtado, R., Robardet, E., Selva, N., Sergiel, A., Farhadinia, M. S., Sunde, P., Portas, R., Ambarli, H., Berzins, R., Kappeler, P.M., Mann, G.K., Pyritz, L., Bissett, C., Grant, T., Steinmetz, R., Swedell, L., Welch, R.J., Armenteras, D., Bidder, O.R., Gonzalez, T.M., Rosenblatt, A., Kachel, S., Balkenhol, N., and Hofman, M.P.G.
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GLOBAL POSITIONING SYSTEM ,GPS-TELEMETRY ,COLLAR PERFORMANCE ,FIX SUCCESS ,R PACKAGE ,HABITAT ,BEHAVIOR ,SELECTION ,LOCATION ,PATTERNS - Abstract
Satellite telemetry is an increasingly utilized technology in wildlife research, and current devices can track individual animal movements at unprecedented spatial and temporal resolutions. However, as we enter the golden age of satellite telemetry, we need an in-depth understanding of the main technological, species-specific and environmental factors that determine the success and failure of satellite tracking devices across species and habitats. Here, we assess the relative influence of such factors on the ability of satellite telemetry units to provide the expected amount and quality of data by analyzing data from over 3,000 devices deployed on 62 terrestrial species in 167 projects worldwide. We evaluate the success rate in obtaining GPS fixes as well as in transferring these fixes to the user and we evaluate failure rates. Average fix success and data transfer rates were high and were generally better predicted by species and unit characteristics, while environmental characteristics influenced the variability of performance. However, 48% of the unit deployments ended prematurely, half of them due to technical failure. Nonetheless, this study shows that the performance of satellite telemetry applications has shown improvements over time, and based on our findings, we provide further recommendations for both users and manufacturers.
- Published
- 2019
9. Right on track? Performance of satellite telemetry in terrestrial wildlife research
- Author
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Hofman, MPG, Hayward, MW, Heim, M, Marchand, P, Rolandsen, CM, Mattisson, J, Urbano, F, Heurich, M, Mysterud, A, Melzheimer, J, Morellet, N, Voigt, U, Allen, BL, Gehr, B, Rouco, C, Ullmann, W, Holand, Ø, Jørgensen, NH, Steinheim, G, Cagnacci, F, Kroeschel, M, Kaczensky, P, Buuveibaatar, B, Payne, JC, Palmegiani, I, Jerina, K, Kjellander, P, Johansson, Ö, Lapoint, S, Bayrakcismith, R, Linnell, JDC, Zaccaroni, M, Jorge, MLS, Oshima, JEF, Songhurst, A, Fischer, C, Bride, RT, Thompson, JJ, Streif, S, Sandfort, R, Bonenfant, C, Drouilly, M, Klapproth, M, Zinner, D, Yarnell, R, Stronza, A, Wilmott, L, Meisingset, E, Thaker, M, Vanak, AT, Nicoloso, S, Graeber, R, Said, S, Boudreau, MR, Devlin, A, Hoogesteijn, R, May-Junior, JA, Nifong, JC, Odden, J, Quigley, HB, Tortato, F, Parker, DM, Caso, A, Perrine, J, Tellaeche, C, Zieba, F, Zwijacz-Kozica, T, Appel, CL, Axsom, I, Bean, WT, Cristescu, B, Périquet, S, Teichman, KJ, Karpanty, S, Licoppe, A, Menges, V, Black, K, Scheppers, TL, Schai-Braun, SC, Azevedo, FC, Lemos, FG, Payne, A, Swanepoel, LH, Weckworth, BV, Berger, A, Bertassoni, A, McCulloch, G, Šustr, P, Athreya, V, Bockmuhl, D, Casaer, J, Ekori, A, Melovski, D, Richard-Hansen, C, Van De Vyver, D, Reyna-Hurtado, R, Robardet, E, Selva, N, Sergiel, A, Farhadinia, MS, Sunde, P, Portas, R, Ambarli, H, Berzins, R, Kappeler, PM, Mann, GK, Pyritz, L, Bissett, C, Grant, T, Steinmetz, R, Swedell, L, Welch, RJ, Armenteras, D, Bidder, OR, González, TM, Rosenblatt, A, Kachel, S, Balkenhol, N, University of Goettingen, Bangor University, Nelson Mandela University, Norwegian Institute for Nature Research, Unité Ongulés Sauvages, Université Grenoble Alpes, University of Freiburg, Bavarian Forest National Park, University of Oslo, Leibniz Institute for Zoo and Wildlife Research, INRA, University of Veterinary Medicine, Institute for Agriculture and the Environment, University of Zurich, Centre National de la Recherche Scientifique (CNRS), Landcare Research, Universidad de Córdoba, University of Potsdam, Leibniz Centre for Agricultural Landscape Research (ZALF), Norwegian University of Life Sciences, Fondazione Edmund Mach, Forest Research Institute of Baden-Wuerttemberg, Mongolia Program, Biotechnical Faculty, Swedish University for Agricultural Sciences (SLU), Snow Leopard Trust, Max-Planck Institute for Ornithology, Columbia University, Panthera, University of Florence, Vanderbilt University, Universidade Estadual Paulista (Unesp), Ecoexist, University of Oxford, Texas A and M University, D’Ingenierie et d’Architecture de Geneve, Faro Maro Ecoresearch, Guyra Paraguay—CONACYT, Instituto Saite, Ronin Institute, University of Natural Resources and Applied Life Sciences, Centre National de la Recherche Scientifique, Université Claude Bernard Lyon 1, University of Cape Town, Leibniz Institute for Primate Research, Brackenhurst Campus, Office of Environment and Heritage, Norwegian Institute of Bioeconomy Research, Indian Institute of Science, Ashoka Trust for Research in Ecology and the Environment, DBT India Alliance, University of KwaZulu-Natal, D.R.E.Am. Italia, Unités Ongulés Sauvages, Trent University, SUNY College of Environmental Science and Forestry, University of Santa Catarina, Onçafari, Environmental Laboratory, Rhodes University, University of Mpumalanga, Ministery of Environment and Natural Resources of Mexico, Alianza Nacional Para la Conservacion del Jaguar A.C., California Polytechnic State University, Universidad Nacional de Jujuy–CONICET, Tatra National Park, Humboldt State University, South Africa, Main Camp Research, University of British Columbia, Virginia Tech., Service Public de Wallonie, Research Institute for Nature and Forest, Universidade Federal de Goiás (UFG), Fazenda Limoeiro, University of Venda, Instituto de Pesquisa e Conservação de Tamanduás no Brasil, Global Change Research Institute CAS, Wildlife Conservation Society—India, University of Applied Sciences and Arts of Western Switzerland, Macedonian Ecological Society, Office National de la Chasse et de la Faune Sauvage, Université de Guyane), El Colegio de la Frontera Sur, ANSES Nancy Laboratory for Rabies and Wildlife, Polish Academy of Sciences, Aarhus University, Duzce University, WWF Thailand, City University of New York, Universidad Nacional de Colombia, University of California, University of North Florida, University of Washington, University of Newcastle, Black Rock Forest, Sequoia Riverlands Trust, Ongava Research Centre, Scientific Services, Karlsruher Institut für Technologie (KIT), CEntre Technique des Industries Mécaniques (CETIM), CEntre Technique des Industries Mécaniques - Cetim (FRANCE), Department of Research and Documentation, Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Deutscher Wetterdienst [Offenbach] (DWD), Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft, Department of Animal and Man Biology, Università degli Studi di Firenze = University of Florence [Firenze] (UNIFI), Université de Lyon, Office Nationale de la Chasse et de la Faune Sauvage, DAM Île-de-France (DAM/DIF), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Centro de Engenharia Biologica e Quimica, Instituto Superior Técnico, Universidade Técnica de Lisboa (IST), SOPTOM, CRCC Centre for Research and Conservation of Chelonians, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Leibniz-Institut für Astrophysik Potsdam (AIP), Life Cycle Strategies, Georg-August-University [Göttingen], Università degli Studi di Firenze = University of Florence (UniFI), Laboratoire Chrono-environnement (UMR 6249) (LCE), Georg-August-University = Georg-August-Universität Göttingen, and Fish and Wildlife Conservation
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Questionnaires ,SELECTION ,Forests ,Wildlife ,Data acquisition ,Temperate forests ,Animal performance ,Data reduction ,Global positioning system ,Movement ecology ,Telemetry ,R PACKAGE ,Spacecraft ,HABITAT ,Animal Management ,Centre for Ecological Sciences ,Ecology ,Eukaryota ,Agriculture ,Terrestrial Environments ,Navigation ,GPS-TELEMETRY ,Multidisciplinary Sciences ,Data Acquisition ,Research Design ,Engineering and Technology ,Science & Technology - Other Topics ,Medicine ,Temperate Forests ,Information Technology ,BEHAVIOR ,Research Article ,Environmental Monitoring ,Computer and Information Sciences ,Animals ,Animals, Wild ,Ecosystem ,Geographic Information Systems ,Animal Types ,Science ,GPS telemetry ,Research and Analysis Methods ,Ecosystems ,COLLAR PERFORMANCE ,FIX SUCCESS ,Settore BIO/07 - ECOLOGIA ,LOCATION ,Animal Performance ,GLOBAL POSITIONING SYSTEM ,Survey Research ,Science & Technology ,Bio-logging ,Ecology and Environmental Sciences ,Organisms ,Biology and Life Sciences ,Data Reduction ,Wildlife conservation ,PATTERNS ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Zoology - Abstract
Satellite telemetry is an increasingly utilized technology in wildlife research, and current devices can track individual animal movements at unprecedented spatial and temporal resolutions. However, as we enter the golden age of satellite telemetry, we need an in-depth understanding of the main technological, species-specific and environmental factors that determine the success and failure of satellite tracking devices across species and habitats. Here, we assess the relative influence of such factors on the ability of satellite telemetry units to provide the expected amount and quality of data by analyzing data from over 3,000 devices deployed on 62 terrestrial species in 167 projects worldwide. We evaluate the success rate in obtaining GPS fixes as well as in transferring these fixes to the user and we evaluate failure rates. Average fix success and data transfer rates were high and were generally better predicted by species and unit characteristics, while environmental characteristics influenced the variability of performance. However, 48% of the unit deployments ended prematurely, half of them due to technical failure. Nonetheless, this study shows that the performance of satellite telemetry applications has shown improvements over time, and based on our findings, we provide further recommendations for both users and manufacturers. Forest and Nature for Society (FONASO) Erasmus Mundus Joint Doctorate programme [2013-09] University of Goettingen Norwegian Environment Agency Research Council of Norway [212919] Norwegian Institute for Nature Research Messerli Foundation, WWF Landcare Research Ltd New Zealand TBfree New Zealand (AHB project) [R10737] Norwegian Research Counsil, Smafefondet, NMBU Research Council of Norway Federal State of Baden-Wuerttemberg (Landesjagdabgabe) Wildlife Conservation Society Swedish Environmental Protection Agency private foundation "Marie Clair Cronstedts stiftelse" NASA Arctic Boreal Vulnerability Experiment [NNX15AV92A] National Geographic Society Waitt Grant Program [W157-110] FAPESP [2013/50421-2, 2014/23132-2] CNPq [312045/2013-1, 312292/2016-3, 161089/2014-3] Silicon Valley Community Foundation The Overbrook Foundation International ReSource Award WCS Brasil Vanderbilt University PROCAD/CAPES [88881.068425/2014-01] MLSJ Fundacao de Amparo a Pesquisa do Estado de Sao Paulo Fapesp [2013/50421-2, 2014/23132-2] Projeto Pecarideos - WCS Brasil Howard G Buffett Foundation Consejo Nacional de Ciencia y Tecnologia -CONACYT Austrian Research Promotion Agency (FFG) [814274, 834118] Leobner Realgemeinschaft Forstbetrieb Kletschach WWF Nedbank Green Trust [GT 2251] DFG [Fi707/9-1/DFG Zi548/6-1/DAAD (D/12/41834), FI707/9-1, ZI548/6-1] DAAD [D/12/41834] Nottingham Trent University The Howard G. Buffett Foundation ISRO-IISc Space Technology Cell Wellcome Trust/DBT India Alliance and Space Technology Cell, Indian Institute of Science Lower Saxony Ministry of Food, Agriculture and Consumer Protection Panthera Kaplan Graduate Award Bank of America Reindeer Development Fund in Norway Rhodes University Robin Hurt Wildlife Foundation Caesar Kleberg Wildlife Research Institute Wildlife Conservation Network Humboldt State University HSU Marine and Coastal Science Initiative Humboldt State University Research, Scholarship and Creative Activities Grant Claude Leon Foundation Postdoctoral Fellowship The Cape Leopard Trust Conservation South Africa South African National Parks HERD project (Hwange Environmental Research Development) - Agence Nationale de la Recherche (FEAR project) [ANR-08-BLAN-0022] Centre National de la Recherche Scientifique (Programme Zones Ateliers) National Geographic Society [C151-08] NSERC CGS D U.S. Fish and Wildlife Service Service public de Wallonie Direction generale de l'Agriculture, des Ressources naturelles et de l'Environnement U.S. Army Corps of Engineers Parrotia-Stiftung Stiftung Dr. Joachim de Giacomi Basler Stiftung fur biologische Forschung Messerli Stiftung Carl Burger Stiftung CIC Schweiz CIC Deutschland Paul Schiller Stiftung Karl Mayer Stiftung Consorcio Capim Branco de Energia Ministere de l'Agriculture de l'Agroalimentaire et de la Foret Conseil Regional de Bourgogne Conseil General de la Cote d'Or Federation Departementale des Chasseurs de Cote d'Or Groupement de Defense Sanitaire de Cote d'Or Federation Nationale des Chasseurs Office National de la Chasse et de la Faune Sauvage South African National Research Foundation [107099] Sao Paulo Research Foundation [FAPESP 2013/04957-8, FAPESP 2013/18526-9] MAVA Foundation, Switzerland The Deutsche Bundesstiftung Umwelt DBU (German Federal Environmental Foundation) Centre National d'Etudes Spatiales (CNES) Project GLOBE - Polish-Norwegian Research Programme [POLNOR/198352/85/2013] ASer: Norway Grants under the Polish-Norwegian Research Program [POL-NOR/198352/85/2013] The People's Trust for Endangered Species (PTES) Zoologische Gesellschaft fur Arten-und Populationsschutz (ZGAP) Iranian Cheetah Society Quagga Conservation Fund IdeaWild Association Francaise des Parcs Zoologiques (AFdPZ) DEAL (Direction de l'Environnement de l'Amenagement et du Logement) de Guyane CNES (Centre National d'Etudes Spatiales) The Nedbank WWF Green Trust The International Foundation for Science Cape Leopard Trust German Research Foundation [DFG: KA 1082/16-1] The Wildlife and Reserve Management Research Group (WRMRG) International Foundation for Science (IFS) Safari Club International Foundation (SCIF) The Rufford Small Grants Foundation Ernst & Ethel Eriksen Trust WWF Sweden Leakey Foundation National Geographic Society WennerGren Foundation Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias, Project "Efecto de la presencia de saladosnaturales en la distribucion y uso de habitat de la danta de tier-ras bajas (Tapirus terrestris) en las amazonas colombiano" [1101569-33286, 0385-2013] Alexander von Humboldt Foundation NSF Graduate Research Fellowship [DEG-125608] Sustainability East Asia LLC - SEA Amarula Trust National Geographic Earthwatch Institute World Wildlife Fund for Nature Columbus Zoo California North Coast Chapter of The Wildlife Society Sequoia Park Zoo Foundation Anses This work was supported by: Forest and Nature for Society (FONASO) Erasmus Mundus Joint Doctorate programme (CONTRACT NO. 2013-09) to MPGH, Publication costs were covered by the Open Access Publication Fund of the University of Goettingen; The Norwegian Environment Agency, the Research Council of Norway (project 212919), Norwegian Institute for Nature Research to JM; Messerli Foundation, WWF to JMel; CRou: The author was supported in the form of salary by a postdoctoral grant funded by Landcare Research Ltd New Zealand and data provided was funded by research project grant from TBfree New Zealand (AHB project number R10737). Norwegian Research Counsil, Smafefondet, NMBU to NHJ; The Research Council of Norway to GS; Federal State of Baden-Wuerttemberg (Landesjagdabgabe) to MK; Funding for the capture and collaring of khulan was received from Wildlife Conservation Society, administered through a cooperative agreement with Sustainability East Asia LLC - SEA and originating from Oy Du Tolgoi -OT gold and copper mining company to PK; Swedish fieldwork was supported by the Swedish Environmental Protection Agency and by the private foundation "Marie Clair Cronstedts stiftelse" to PKje; NASA Arctic Boreal Vulnerability Experiment (project #NNX15AV92A), National Geographic Society Waitt Grant Program (Grant #W157-110) to SL; Research Council of Norway to JDCL; FAPESP (2013/50421-2, 2014/23132-2), CNPq (312045/2013-1; 312292/2016-3; 161089/2014-3), Silicon Valley Community Foundation, The Overbrook Foundation, the International ReSource Award, WCS Brasil, and Vanderbilt University. PROCAD/CAPES (88881.068425/2014-01); MLSJ Fundacao de Amparo a Pesquisa do Estado de Sao Paulo Fapesp (process: 2013/50421-2 and scholarship: 2014/23132-2) and CNPQ (scholarship: 161089/2014-3), Projeto Pecarideos - WCS Brasil and Vanderbilt University for funding this research to JEFO.; Howard G Buffett Foundation, Amarula Trust to AS; Consejo Nacional de Ciencia y Tecnologia -CONACYT with resources from the FEE to JJT; Austrian Research Promotion Agency (FFG) grant numbers 814274 and 834118, Leobner Realgemeinschaft and Forstbetrieb Kletschach to RS; WWF Nedbank Green Trust (grant number GT 2251) to MD; DFG Fi707/9-1/DFG Zi548/6-1/DAAD (D/12/41834) to MKla; DFG FI707/9-1, DFG ZI548/6-1, DAAD D/12/41834 to DZ; GPS tags were funded by Nottingham Trent University, National Geographic, Earthwatch Institute, World Wildlife Fund for Nature, Columbus Zoo to RY; The Howard G. Buffett Foundation to AStr; ISRO-IISc Space Technology Cell to MT; Wellcome Trust/DBT India Alliance and Space Technology Cell, Indian Institute of Science to ATV; D.R.E. Am. Italia provided support in the form of salary for author SN, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific role of this author is articulated in the 'author contributions' section.; RG was supported by funds of the Lower Saxony Ministry of Food, Agriculture and Consumer Protection; Panthera Kaplan Graduate Award to AD; Bank of America to JAM; The Norwegian Environment Agency, the Research Council of Norway (Project 212919), the Reindeer Development Fund in Norway, and several County administrations around Norway to JO; Rhodes University to DMP; Robin Hurt Wildlife Foundation, Caesar Kleberg Wildlife Research Institute to AC; Wildlife Conservation Network, Panthera to CT; Humboldt State University, HSU Marine and Coastal Science Initiative, California North Coast Chapter of The Wildlife Society, Sequoia Park Zoo Foundation to CLA; Humboldt State University Research, Scholarship and Creative Activities Grant to IA; Humboldt State University Research, Scholarship and Creative Activities Grant to WTB; Claude Leon Foundation Postdoctoral Fellowship, The Cape Leopard Trust, Conservation South Africa, South African National Parks to BC; GPS collars were funded by the HERD project (Hwange Environmental Research Development), funded by the Agence Nationale de la Recherche (FEAR project ANR-08-BLAN-0022), and the Centre National de la Recherche Scientifique (Programme Zones Ateliers). Some collars were funded by the National Geographic Society GRANT #C151-08 to SP; NSERC CGS D to KJT; SK: U.S. Fish and Wildlife Service to SK; Service public de Wallonie. Direction generale de l'Agriculture, des Ressources naturelles et de l'Environnement to AL; U.S. Army Corps of Engineers, U.S. Fish and Wildlife Service to KB; Parrotia-Stiftung, Stiftung Dr. Joachim de Giacomi, Basler Stiftung fur biologische Forschung, Messerli Stiftung, Carl Burger Stiftung, CIC Schweiz, CIC Deutschland, Paul Schiller Stiftung and Karl Mayer Stiftung to SCS; Consorcio Capim Branco de Energia to FCA; Consorcio Capim Branco de Energia to FGL; Ministere de l'Agriculture de l'Agroalimentaire et de la Foret, the Conseil Regional de Bourgogne, the Conseil General de la Cote d'Or, the Federation Departementale des Chasseurs de Cote d'Or, the Groupement de Defense Sanitaire de Cote d'Or, the Federation Nationale des Chasseurs and the Office National de la Chasse et de la Faune Sauvage to AP.; ; South African National Research Foundation (Grant number: 107099) to LHS; Sao Paulo Research Foundation (FAPESP 2013/04957-8 and FAPESP 2013/18526-9) to ABer; MAVA Foundation, Switzerland; The Deutsche Bundesstiftung Umwelt DBU (German Federal Environmental Foundation) to DM; Centre National d'Etudes Spatiales (CNES) to CRic; Anses to ER; Project GLOBE (POLNOR/198352/85/2013) funded by the Polish-Norwegian Research Programme operated by the National Centre for Research and Development; ASer: Norway Grants under the Polish-Norwegian Research Program operated by the National Centre for Research and Development (GLOBE, POL-NOR/198352/85/2013) to NS; The People's Trust for Endangered Species (PTES), Zoologische Gesellschaft fur Arten-und Populationsschutz (ZGAP), Iranian Cheetah Society, Quagga Conservation Fund, IdeaWild, Panthera and Association Francaise des Parcs Zoologiques (AFdPZ) to MSF; DEAL (Direction de l'Environnement de l'Amenagement et du Logement) de Guyane, CNES (Centre National d'Etudes Spatiales) to RBer; The Nedbank WWF Green Trust, The International Foundation for Science, the Cape Leopard Trust, Rhodes University to GKM; German Research Foundation (DFG: KA 1082/16-1) to LP; The Wildlife and Reserve Management Research Group (WRMRG), International Foundation for Science (IFS), Safari Club International Foundation (SCIF), The Rufford Small Grants Foundation, Ernst & Ethel Eriksen Trust to TG; WWF Sweden to RSte; Leakey Foundation, National Geographic Society, WennerGren Foundation to LS; Departamento Administrativo de Ciencia, Tecnologia e Innovacion Colciencias, Project "Efecto de la presencia de saladosnaturales en la distribucion y uso de habitat de la danta de tier-ras bajas (Tapirus terrestris) en las amazonas colombiano" (grantnumber 1101569-33286, contract: 0385-2013) to DA; PostDoctoral Fellowship from the Alexander von Humboldt Foundation to ORB; NSF Graduate Research Fellowship DEG-125608 to SKac. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.; We thank Horst Reinecke and Christian Trothe for database management and data entry, and James Gibbons, Matthias Schmid and Benjamin Hofner for their enlightening explanations on the statistics. We thank Stan Tomkiewicz for insightful discussion on GPS collar functioning, and the Eurodeer. org network, Sarah Davidson of Movebank. org, and Stephanie O'Donnell of WILDLABS. NET for helping to spread the word about this study. We also thank Jonah Gula, Olav Strand, Ole Roer, Liu Yanlin, Bernt-Erik Saether, Anders Borstad, Laura McMahon, Thomas Morrison, Maurizio Ramanzin, Vebjorn Veiberg, Erling Johan Solberg, Leif Soennichsen, Hans Christian Pedersen, Tom McCarthy, Jacqueline L. Frair, Siobhan Dyer, Morten Odden, Lars Haugaard, and Peter G. Crawshaw, Jr. for their data contributions. The publication was supported by the Open Access Publication Fund of the University of Goettingen.
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- 2019
10. Airplane Subsystem Testing at The Military University of Technology
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Wojtowicz, K., primary, Roskowicz, M., additional, Balestrieri, E., additional, Daponte, P., additional, De Vito, L., additional, Lamonaca, F., additional, Rapuano, S., additional, Viglione, L., additional, Henzel, M., additional, Wazny, M., additional, Kachel, S., additional, Rochala, Z., additional, Olejnik, A., additional, Jasztal, M., additional, Rogolski, R., additional, and Wrzesien, S., additional
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- 2019
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11. Particle design for delivery of live microbes to plants
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Kachel, S., primary, Tschernjaew, J., additional, and Paasche, A., additional
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- 2018
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12. Hochporöse silicabasierte Partikel als Träger für Wirkstoffe: Herstellung, Charakterisierung und neueste Anwendungen
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Smirnova, I., primary, Gurikov, P., additional, Tschernjaew, J., additional, and Kachel, S., additional
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- 2016
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13. Effect of Diffusion on Component Segregation During Drying of Aqueous Solutions Containing Protein and Sugar
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Nijdam, J., primary, Kachel, S., additional, Scharfer, P., additional, Schabel, W., additional, and Kind, M., additional
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- 2014
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14. Gedruckte (Hybrid-) Biosensoren: Modellsystem und erste Beschichtungsversuche
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Riegel, A.-L., primary, Kachel, S., additional, Hubbuch, J., additional, Scharfer, P., additional, and Schabel, W., additional
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- 2013
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15. Bestimmung des Diffusionskoeffizienten von Wasser in Polymerfilmen für Teststreifen
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Kachel, S., primary, Zhou, Y., additional, DuVall, S., additional, Scharfer, P., additional, and Schabel, W., additional
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- 2010
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16. Effect of Diffusion on Component Segregation During Drying of Aqueous Solutions Containing Protein and Sugar.
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Nijdam, J., Kachel, S., Scharfer, P., Schabel, W., and Kind, M.
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- *
DIFFUSION , *SPRAY drying , *AQUEOUS solutions , *LACTOSE , *SERUM albumin , *RAMAN spectroscopy , *FOOD dehydration - Abstract
Water content profiles within thin aqueous films of lactose and bovine serum albumin (BSA) were tracked during drying using inverse microscope Raman spectroscopy (IMRS). These film drying experiments provide useful insights into component diffusion within droplets during spray drying in the food industry. Virtually no segregation of lactose and BSA occurred in the films during drying at 30°C. Thus, in film drying simulations at this temperature, lactose and BSA can be assumed to be a single homogenous solute, and binary diffusion of water and this single solute can be modeled. A solute-fixed coordinate system drying model properly predicted the water content profiles and shrinkage of the films during the constant rate period. This represents a partial validation of the model. The drying model predicted significant gradients in water content in films dried at a higher temperature of 80°C, which have the potential to drive segregation of lactose and BSA. However, IMRS analysis of films dried at 80°C revealed no segregation of lactose and BSA. We propose that lactose and BSA are relatively immobile in the bulk of the film during drying, forming a homogenous gel that allows the significantly smaller water molecules to diffuse through. The observed accumulation of BSA as a monolayer at the surface of the dried films appears to be a local phenomenon most likely driven by the surface activity of BSA. [ABSTRACT FROM AUTHOR]
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- 2015
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17. Safety Studies of the Oral Rabies Vaccine SAD B19 in Striped Skunk (Mephitis mephitis)
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Vos, A., primary, Pommerening, E., additional, Neubert, L., additional, Kachel, S., additional, and Neubert, A., additional
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- 2002
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18. Genomic analysis of wolves from Pakistan clarifies boundaries among three divergent wolf lineages.
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Hennelly LM, Sarwar G, Fatima H, Werhahn G, Abbas FI, Khan AM, Mahmood T, Kachel S, Kubanychbekov Z, Waseem MT, Zahra Naqvi R, Hamid A, Abbas Y, Aisha H, Waseem M, Farooq M, and Sacks BN
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- Animals, Pakistan, Genetics, Population, Genomics, Genetic Variation, Endangered Species, Wolves genetics, Phylogeny, DNA, Mitochondrial genetics
- Abstract
Among the three main divergent lineages of gray wolf (Canis lupus), the Holarctic lineage is the most widespread and best studied, particularly in North America and Europe. Less is known about Tibetan (also called Himalayan) and Indian wolf lineages in southern Asia, especially in areas surrounding Pakistan where all three lineages are thought to meet. Given the endangered status of the Indian wolf in neighboring India and unclear southwestern boundary of the Tibetan wolf range, we conducted mitochondrial and genome-wide sequencing of wolves from Pakistan and Kyrgyzstan. Sequences of the mitochondrial D-loop region of 81 wolves from Pakistan indicated contact zones between Holarctic and Indian lineages across the northern and western mountains of Pakistan. Reduced-representation genome sequencing of eight wolves indicated an east-to-west cline of Indian to Holarctic ancestry, consistent with a contact zone between these two lineages in Pakistan. The western boundary of the Tibetan lineage corresponded to the Ladakh region of India's Himalayas with a narrow zone of admixture spanning this boundary from the Karakoram Mountains of northern Pakistan into Ladakh, India. Our results highlight the conservation significance of Pakistan's wolf populations, especially the remaining populations in Sindh and Southern Punjab that represent the highly endangered Indian lineage., (© The Author(s) 2023. Published by Oxford University Press on behalf of The American Genetic Association. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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19. Ostracism Experiences of Sexual Minorities: Investigating Targets' Experiences and Perceptions by Others.
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Büttner CM, Rudert SC, and Kachel S
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Lesbian, gay, and bisexual (LGB) people face frequent discrimination, maltreatment, and violence for transgressing gender roles upheld in heteronormative societies. Ostracism (i.e., being excluded and ignored) is likely another, understudied form of discrimination against sexual minorities. In a multi-method approach using a nationally representative panel ( N = 4104) and experience sampling data ( N = 467, 14 days, k = 926 ostracism experiences), we find that LGB individuals report more ostracism experiences than straight individuals. In line with the idea that ostracism toward sexual minorities occurs as a function of gender role nonconformity, lesbians and gay men are rated by an independent rater sample as more likely to be ostracized ( k = 10,760 ratings) when they are also rated as more lesbian/gay and less gender role conforming. Our findings speak in favor of ostracism as a discriminatory experience of LGB individuals that is driven by transgressions of heteronormativity., Competing Interests: Declaration of Conflicting InterestsThe author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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- 2024
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20. Dressing up social psychology: Empirically investigating the psychological functions of clothing using the example of symbolic protection.
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Gruber R, Häfner M, and Kachel S
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- Male, Humans, Female, Clothing psychology, Ukraine, Psychology, Social, Bandages
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Clothing behaviour remains an understudied research area within social psychology. Through the present research, we aim to anchor attire as an empirical research subject by investigating the psychological properties of one of its functionalities, namely, to provide protection. We argue that attire's undisputed role in shielding humans from environmental hazards may extend to the psychological level and protect them from the incorporeal consequences of existential threats symbolically. In this Registered Report, a mixed-methods approach links an ecologically valid field study of self-presentation in social media posts during Russia's war on Ukraine (Study 1; N = 248) with supraliminal priming of mortality salience in an online experiment (Study 2; N = 248). Across both studies, we expect that mortality concerns let people accentuate the physically protective attributes of clothing (e.g. more layers of clothing) and resort to more in-group prototypical dress styles (i.e. more gender-stereotypical). Findings show that people adjust their clothing preferences in response to existential threats, favouring in-group prototypical clothing (more gender-typical for both women and men in Study 1) and physically protective attire (higher in women and lower in men in Study 2) during high (vs. low) levels of existential threat. By positioning clothing as a research area within social psychology, our goal is to stimulate a wave of research on its profound role for humankind. Furthermore, we provide a dynamic and robust methodological approach to researching terror management theory., (© 2023 The Authors. British Journal of Social Psychology published by John Wiley & Sons Ltd on behalf of British Psychological Society.)
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- 2024
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21. Gaining masculine power through guns? The impact of masculinity threat on attitudes toward guns.
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Kachel S, Bloch T, Bosson JK, Lorenz LL, and Steffens MC
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Gun violence is a serious problem in the United States and elsewhere and more so among men than women. We conducted an experiment to examine if men whose masculinity was threatened are more attracted to guns than non-threatened men, presumably to compensate for the threat. After completing a gender knowledge test, men ( N = 168) randomly received either false masculinity threatening (experimental condition) or masculinity affirming (control condition) feedback. Subsequently, we measured men's attitudes toward guns and their choice of a gun-range voucher. Men whose masculinity was threatened (vs. affirmed) showed more positive attitudes toward guns and were more likely to choose the voucher. Both effects were statistically significant when the whole sample was analyzed and when very strict exclusion criteria were applied. However, when data exclusions were based on a suspicion check, effects were statistically significant only when a covariate was included (i.e., social dominance orientation, patriotism, or experience with guns). We discuss reasons for this mixed evidence, including the possibility that suspicion regarding the masculinity feedback could itself be a compensatory reaction to threat., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Kachel, Bloch, Bosson, Lorenz and Steffens.)
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- 2024
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22. Author Correction: The concept of the contact angle in the process of oil film formation in internal combustion piston engines.
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Wróblewski P and Kachel S
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- 2023
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23. The concept of the contact angle in the process of oil film formation in internal combustion piston engines.
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Wróblewski P and Kachel S
- Abstract
In internal combustion piston engines, the process of oil film formation differs from that in industrial machines. The adhesive strength of the molecules at the interface between the coating of engine parts and the lubricating oil affects the load carrying capacity and the ability to form a lubricated film. The geometry of the lubricating wedge between the surfaces of the piston rings and the cylinder wall is determined by the thickness of the oil film and the amount of oil coverage of the ring. This state is modified by many parameters describing the operation of the engine and the physical and chemical parameters of the coatings of the cooperating pairs. For lubricating molecules reaching energies greater than the energy barrier of adhesion at the boundary, sliding occurs. Therefore, the value of the contact angle of the liquid on the surface of the coating depends on the value of the intermolecular force of attraction. According to the author, there is a strong correlation between the contact angle and the lubrication effect. Research indicates that the potential barrier is a function of the contact angle and the contact angle hysteresis (CAH). The innovation of the work consists in the study of the contact angle and CAH in the conditions of thin layers of lubricating oil in cooperation with hydrophilic and hydrophobic coatings. The thickness of the lubricating film was measured under various speed and load conditions using optical interferometry. The study proves that CAH is a better interface parameter to correlate with the effect of hydrodynamic lubrication., (© 2023. The Author(s).)
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- 2023
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24. Operational and Material Causes of High-Pressure Turbine Disc Damage in the RD-33 Engine.
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Jóźwiak S, Kozakiewicz A, Kachel S, and Zasada D
- Abstract
This paper presents an analysis of the causes of damage and fragmentation to the high-pressure turbine (HTP) disc of the RD-33 engine mounted in the MIG-29 aircraft. The authors have carried out an analysis of the changes to the structure of the disc material, both in the areas containing cracks and in the undamaged areas. The impact of structural changes on the alterations in the analysed strength properties along the disc radius was assessed. Material tests were correlated with the analysis of the recorded engine parameters, indicating potential causes of the HPT disc fragmentation.
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- 2023
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25. Subsegmental pulmonary embolism and anticoagulant therapy: the impact of clinical context.
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Dahan A, Farina S, Holmes NE, Kachel S, McDonald CF, Lewis JE, Marhoon N, Yanase F, Yang N, and Bellomo R
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- Humans, Anticoagulants adverse effects, Lung, Risk Factors, Pulmonary Embolism diagnostic imaging, Pulmonary Embolism drug therapy, Pulmonary Embolism chemically induced, Subacute Sclerosing Panencephalitis chemically induced
- Abstract
Background: Anticoagulation for subsegmental pulmonary embolism (SSPE) is controversial., Aim: To assess the impact of clinical context on anticoagulation and outcomes of SSPE., Methods: We electronically searched computed tomography pulmonary angiogram reports to identify SSPE. We extracted demographic, risk factor, investigations and outcome data from the electronic medical record. We stratified patients according to anticoagulation and no anticoagulation., Results: From 1 January 2017 to 31 December 2019, we identified 166 patients with SSPE in 5827 pulmonary angiogram reports. Of these, 123 (74%) received anticoagulation. Compared with non-anticoagulated patients, such patients had a different clinical context: higher rates of previous venous thromboembolism (11% vs 0%; P = 0.019), more recent surgery (26% vs 9%; P = 0.015), more elevated serum D-dimer (22% vs 5%; P = 0.004), more lung parenchymal abnormalities (76% vs 61%; P = 0.037) and were almost twice as likely to require inpatient care (76% vs 42%; P < 0.001). Such patients also had twice the all-cause mortality at 1 year (32% vs 16%)., Conclusions: SSPE is diagnosed in almost 3% of pulmonary angiograms and is associated with high mortality, regardless of anticoagulation, due to coexistent disease processes rather than SSPE. Anticoagulation appears dominant but markedly affected by the clinical context of risk factors, alternative indications and illness severity. Thus, the controversy is partly artificial because anticoagulation after SSPE is clinically contextual with SSPE as only one of several factors., (© 2022 Royal Australasian College of Physicians.)
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- 2023
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26. Experimental Studies of Welded Joints in Structures Subject to High Impact Vibrations Using Destructive and Non-Destructive Methods.
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Wróblewski P, Niekurzak M, and Kachel S
- Abstract
This article presents the issues of control and quality assurance of high-strength railway rail joints. Selected test results and requirements for rail joints made by welding with stationary welders on the basis of the requirements included in the PN-EN standards have been described. In addition, destructive and non-destructive tests of weld quality were performed, including visual tests, geometrical measurements of irregularities, magnetic particle and penetration tests, fracture tests, observations of micro- and macro-structure and hardness measurements. The scope of these studies included conducting tests, monitoring the process and evaluating the results obtained. Laboratory tests on the rail joints confirmed the good quality of the rail joints from the welding shop. Increasingly less damage to the track in places of new welded joints is proof that the methodology of laboratory qualification tests is correct and fulfils its task. The presented research will help educate engineers on the welding mechanism and the importance of quality control of rail joints during their design. The results of this study are of key importance for public safety and will improve knowledge on the correct implementation of the rail joint and how to conduct quality control tests in accordance with the requirements of the currently applicable standards. It will help engineers choose the right welding technique and choose solutions to minimize cracks.
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- 2023
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27. Ungulate spatiotemporal responses to contrasting predation risk from wolves and snow leopards.
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Kachel S, Bayrakcısmith R, Kubanychbekov Z, Kulenbekov R, McCarthy T, Weckworth B, and Wirsing A
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- Animals, Sheep, Ecosystem, Predatory Behavior physiology, Goats, Wolves physiology, Panthera
- Abstract
Spatial responses to risk from multiple predators can precipitate emergent consequences for prey (i.e. multiple-predator effects, MPEs) and mediate indirect interactions between predators. How prey navigate risk from multiple predators may therefore have important ramifications for understanding the propagation of predation-risk effects (PREs) through ecosystems. The interaction of predator and prey traits has emerged as a potentially key driver of antipredator behaviour but remains underexplored in large vertebrate systems, particularly where sympatric prey share multiple predators. We sought to better generalize our understanding of how predators influence their ecosystems by considering how multiple sources of contingency drive prey distribution in a multi-predator-multi-prey system. Specifically, we explored how two sympatric ungulates with different escape tactics-vertically agile, scrambling ibex Capra sibirica and sprinting argali Ovis ammon-responded to predation risk from shared predators with contrasting hunting modes-cursorial wolves Canis lupus and vertical-ambushing, stalking snow leopards Panthera uncia. Contrasting risk posed by the two predators presented prey with clear trade-offs. Ibex selected for greater exposure to chronic long-term risk from snow leopards, and argali for wolves, in a nearly symmetrical manner that was predictable based on the compatibility of their respective traits. Yet, acute short-term risk from the same predator upended these long-term strategies, increasing each ungulates' exposure to risk from the alternate predator in a manner consistent with a scenario in which conflicting antipredator behaviours precipitate risk-enhancing MPEs and mediate predator facilitation. By contrast, reactive responses to wolves led ibex to reduce their exposure to risk from both predators-a risk-reducing MPE. Evidence of a similar reactive risk-reducing effect for argali vis-à-vis snow leopards was lacking. Our results suggest that prey spatial responses and any resulting MPEs and prey-mediated interactions between predators are contingent on the interplay of hunting mode and escape tactics. Further investigation of interactions among various drivers of contingency in PREs will contribute to a more comprehensive understanding and improved forecasting of the ecological effects of predators., (© 2022 The Authors. Journal of Animal Ecology © 2022 British Ecological Society.)
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- 2023
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28. CardiSort: a convolutional neural network for cross vendor automated sorting of cardiac MR images.
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Lim RP, Kachel S, Villa ADM, Kearney L, Bettencourt N, Young AA, Chiribiri A, and Scannell CM
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- Heart diagnostic imaging, Humans, Image Processing, Computer-Assisted methods, Retrospective Studies, Magnetic Resonance Imaging methods, Neural Networks, Computer
- Abstract
Objectives: To develop an image-based automatic deep learning method to classify cardiac MR images by sequence type and imaging plane for improved clinical post-processing efficiency., Methods: Multivendor cardiac MRI studies were retrospectively collected from 4 centres and 3 vendors. A two-head convolutional neural network ('CardiSort') was trained to classify 35 sequences by imaging sequence (n = 17) and plane (n = 10). Single vendor training (SVT) on single-centre images (n = 234 patients) and multivendor training (MVT) with multicentre images (n = 434 patients, 3 centres) were performed. Model accuracy and F1 scores on a hold-out test set were calculated, with ground truth labels by an expert radiologist. External validation of MVT (MVT
external ) was performed on data from 3 previously unseen magnet systems from 2 vendors (n = 80 patients)., Results: Model sequence/plane/overall accuracy and F1-scores were 85.2%/93.2%/81.8% and 0.82 for SVT and 96.1%/97.9%/94.3% and 0.94 MVT on the hold-out test set. MVTexternal yielded sequence/plane/combined accuracy and F1-scores of 92.7%/93.0%/86.6% and 0.86. There was high accuracy for common sequences and conventional cardiac planes. Poor accuracy was observed for underrepresented classes and sequences where there was greater variability in acquisition parameters across centres, such as perfusion imaging., Conclusions: A deep learning network was developed on multivendor data to classify MRI studies into component sequences and planes, with external validation. With refinement, it has potential to improve workflow by enabling automated sequence selection, an important first step in completely automated post-processing pipelines., Key Points: • Deep learning can be applied for consistent and efficient classification of cardiac MR image types. • A multicentre, multivendor study using a deep learning algorithm (CardiSort) showed high classification accuracy on a hold-out test set with good generalisation to images from previously unseen magnet systems. • CardiSort has potential to improve clinical workflows, as a vital first step in developing fully automated post-processing pipelines., (© 2022. The Author(s).)- Published
- 2022
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29. Guidelines for Telemetry Studies on Snow Leopards.
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Johansson Ö, Kachel S, and Weckworth B
- Abstract
Animal-borne tracking devices have generated a wealth of new knowledge, allowing us to better understand, manage and conserve species. Fitting such tracking devices requires that animals are captured and often chemically immobilized. Such procedures cause stress and involve the risk of injuries and loss of life even in healthy individuals. For telemetry studies to be justifiable, it is vital that capture operations are planned and executed in an efficient and ethical way. Project objectives must be clearly articulated to address well-defined knowledge gaps, and studies designed to maximize the probability of achieving those goals. We provide guidelines for how to plan, design, and implement telemetry studies with a special emphasis on snow leopards that are typically captured using foot snares. We also describe the necessary steps to ensure that captures are conducted safely, and with minimal stress to animals.
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- 2022
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30. Helicopter Main Rotor Blade Parametric Design for a Preliminary Aerodynamic Analysis Supported by CFD or Panel Method.
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Kocjan J, Kachel S, and Rogólski R
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This work is the preliminary part of a research program which is aimed at finding some new methods and design solutions for helicopter main rotor multidisciplinary optimization. The task was to develop a parametric geometric model of a single-blade main rotor applicable for varied methods of numerical aerodynamic modeling. The general analytical assumptions for the parametric main rotor design were described. The description of the main rotor blade parametric design method based on Open GRIP graphical programming was presented. Then, the parametric model of a blade was used for aerodynamic models independently developed for panel method and advanced CFD solver. The results obtained from the CFD simulations and panel analysis for main rotor aerodynamics were compared and assessed using analytical calculations. The calculations and simulations for a single-blade and completed rotor were performed for different helicopter weights and rotor pitch angles. The results of different computer aerodynamic analysis environments were compared for the possibility of their application in an optimization loop. This is preliminary work that describes only a partial problem that could be used in the future as part of a comprehensive methodology for aerodynamic and structural optimization of a helicopter rotor. As an output of the research, new options for main rotor optimization are developed. The combined parametric modeling with aerodynamic analysis, as described in this paper, provide the preliminary design for a main rotor spiral, as an element of the optimization loop.
- Published
- 2022
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31. Hydrocode Investigations of Terminal Astroballistics Problems during the Hypothetical Future Planetary Defense System's Space Mission.
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Mroczkowski M, Kachel S, and Kozakiewicz A
- Abstract
The article is devoted to the preliminary concept of the Future Planetary Defense System (FPDS) emphasizing astroballistics. This paper is intended to support international efforts to improve the planetary security of Earth. The work covers three areas of knowledge: astronautics, astrodynamics, and astroballistics. The most important part of the presented article is dynamic, contact combat modeling against small, deformable celestial bodies. For these purposes, the original, proprietary hydrocode of the free particle method (HEFPM-G) with gravity was used. The main aim of combat is to redirect potentially hazardous objects (PHOs) to orbits safe for Earth or destroy them. This concept's first task is to find, prepare, and use dynamic three-dimensional models of the motion of celestial bodies and spacecraft or human-crewed spaceships in the solar system's relativistic frame. The second task is to prepare the FPDS' architecture and computer simulation space missions' initial concepts in the internal part of the solar system. The third and main task covers simulating, using hydrocodes, and selected methods of fighting 100 m diameter rock material asteroids.
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- 2022
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32. Azide-alkyne cycloadditions with an electronically activated alkyne: indole formation via 1-aryl-1,2,3-triazole-derived imino carbenes.
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Kachel S, Jayaraman A, Okorn A, Krummenacher I, Drescher R, Brunecker C, Fuchs S, Heß M, Stennett TE, and Braunschweig H
- Abstract
We report that the use of a diaminoalkyne in the azide-alkyne cycloaddition with aryl azides leads to 3 H -indoles under mild, uncatalysed conditions. Computations reveal that N
2 extrusion from, in one case, isolable triazoles is facile, generating imino carbenes, which undergo intramolecular aryl C-H bond activation and give 3 H -indoles as products.- Published
- 2022
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33. A Novel Method for High Temperature Fatigue Testing of Nickel Superalloy Turbine Blades with Additional NDT Diagnostics.
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Kukla D, Kopec M, Sitek R, Olejnik A, Kachel S, and Kiszkowiak Ł
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In this paper, a novel method for high temperature fatigue strength assessment of nickel superalloy turbine blades after operation at different times (303 and 473 h) was presented. The studies included destructive testing (fatigue testing at temperature 950 °C under cyclic bending load), non-destructive testing (Fluorescent Penetrant Inspection and Eddy Current method), and finite element modelling. High temperature fatigue tests were performed within load range from 5200 to 6600 N using a special self-designed blade grip attached to the conventional testing machine. The experimental results were compared with the finite element model generated from the ANSYS software. It was found that failure of turbine blades occurred in the area with the highest stress concertation, which was accurately predicted by the finite element (FE) model.
- Published
- 2021
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34. Material Origins of the Accelerated Operational Wear of RD-33 Engine Blades.
- Author
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Kozakiewicz A, Jóźwiak S, Jóźwiak P, and Kachel S
- Abstract
The structural and strength analysis of the materials used to construct an important engine element such as the turbine is of great significance, at both the design stage and during tests and training relating to emergency situations. This paper presents the results of a study on the chemical composition, morphology, and phased structure of the metallic construction material used to produce the blades of the high- and low-pressure turbines of the RD-33 jet engine, which is the propulsion unit of the MiG-29 aircraft. On the basis of an analysis of the chemical composition and phased structure, the data obtained from tests of the blade material allowed the grade of the alloy used to construct the tested elements of the jet engine turbine to be determined. The structural stability of the material was found to be lower in comparison with the engine operating conditions, which was shown by a clear decrease in the resistance properties of the blade material. The results obtained may be used as a basis for analyzing the life span of an object or a selection of material replacements, which may enable the production of the analyzed engine element.
- Published
- 2021
- Full Text
- View/download PDF
35. Using Scenarios for Measuring the Affective and Behavioral Components of Attitudes Toward Lesbians and Gay Men: Validation of the SABA Scale.
- Author
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Preuß S, Ottenstein C, Kachel S, and Steffens MC
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Attitude, Female, Humans, Male, Middle Aged, Reproducibility of Results, Young Adult, Homosexuality, Female psychology, Homosexuality, Male psychology, Psychometrics methods
- Abstract
Attitude-change research requires sound attitude measures adequately predicting behavior. Most existing attitude measures focus on the cognitive (and some on the affective) attitude component (while neglecting the behavioral component). The present research introduces the SABA, a brief scale that consists of Scenarios measuring the Affective and Behavioral components of Attitudes toward lesbians and gay men. In two studies with student and non-student samples (n
1 = 66, n2 = 202), we developed a 25-item scale and reduced it by performing exploratory factor analysis. Confirmatory factor analysis yielded two factors (affective and behavioral) for each version (SABA-L for attitudes toward lesbians, SABA-G for attitudes toward gay men). The reduced scales each contained five scenarios showing good reliability. High convergent validity and discriminant validity were shown using explicit and implicit attitude measures in a multitrait-multimethod analysis. Further, SABA scores correlated with the Modern Homonegativity Scale (MHS) and the Attitudes Toward Lesbians (ATL) and Gay Men Scale (ATG), but-as predicted-not with social anxiety and the Homopositivity Scale. The SABA's criterion and incremental validity were demonstrated in predicting attitude-related behavior better than the MHS. SABA scores showed established associations and differences in antigay attitudes based on age, religiousness, male role norms, authoritarianism, openness (SABA-G only), and sexual orientation, confirming (known-group) validity. Further, the SABA correlated less with the motivation to act without prejudice than the MHS, the ATL, and the ATG. Thus, outperforming existing attitude scales, the SABA appears to be a psychometrically sound instrument to measure attitudes toward lesbians and gay men.- Published
- 2020
- Full Text
- View/download PDF
36. Ring expansion of alumoles with organic azides: selective formation of six-membered aluminum-nitrogen heterocycles.
- Author
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Drescher R, Lin S, Hofmann A, Lenczyk C, Kachel S, Krummenacher I, Lin Z, and Braunschweig H
- Abstract
Aside from simple Lewis acid-base chemistry, the reaction chemistry of aluminacyclopentadienes, which are commonly referred to as aluminoles or simply alumoles, remains relatively underdeveloped. To date, few attempts to extend their inherent insertion and cycloaddition reactivity to the construction of stable aluminum-containing heterocycles have been reported. Herein, we demonstrate the selective ring expansion of a cyclopentadienyl-substituted alumole with a series of organic azides to form unsaturated six-membered AlN heterocycles. Depending on the substituent on the azide, the reaction proceeds either with or without loss of dinitrogen, leading to incorporation of only the "NR" unit of the azide or the entire azo substituent into the periphery of the heterocycle. A deeper understanding of these ring expansion reactions is reached through computational studies, illustrating deviations in the mechanism as a function of the organic azide employed., (This journal is © The Royal Society of Chemistry 2020.)
- Published
- 2020
- Full Text
- View/download PDF
37. Investigating the common set of acoustic parameters in sexual orientation groups: A voice averaging approach.
- Author
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Kachel S, Radtke A, Skuk VG, Zäske R, Simpson AP, and Steffens MC
- Subjects
- Adult, Aged, Female, Humans, Male, Middle Aged, Prejudice, Sexual and Gender Minorities, Social Behavior, Speech Perception, Young Adult, Sexual Behavior, Speech Acoustics
- Abstract
While the perception of sexual orientation in voices often relies on stereotypes, it is unclear whether speech stereotypes and accurate perceptions of sexual orientation are each based on acoustic cues common to speakers of a given group. We ask if the stereotypical belief, that members of the same sexual orientation group share similar acoustic patterns, is accurate to some degree. To address this issue, we are the first to use a novel voice morphing technique to create voice averages from voices that represent extremes of a given sexual orientation group either in terms of actual or perceived sexual orientation. Importantly, averaging preserves only those acoustic cues shared by the original speakers. 144 German listeners judged the sexual orientation of twelve natural-sounding sentence stimuli, each representing an average of five original utterances. Half of the averages were based on targets' self-ratings of sexual orientation: On a 7-point Kinsey-like scale, we selected targets who were most typical for a certain sexual orientation group according to their self-identifications. The other half were based on extreme ratings by others (i.e., on speech-related sexual-orientation stereotypes). Listeners judged sexual orientation from the voice averages with above-chance accuracy suggesting 1) that the perception of actual and stereotypical sexual orientation, respectively, are based on acoustic cues shared by speakers of the same group, and 2) that the stereotypical belief that members of the same sexual orientation group share similar acoustic patterns is accurate to some degree. Mean fundamental frequency and other common acoustic parameters showed systematic variation depending on speaker gender and sexual orientation. Effects of sexual orientation were more pronounced for stereotypical voice averages than for those based on speakers' self-ratings, suggesting that sexual-orientation stereotypes exaggerate even those differences present in the most salient groups of speakers. Implications of our findings for stereotyping and discrimination are discussed., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2018
- Full Text
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38. Borabicyclo[3.2.0]heptadiene: A Fused Bicyclic Isomer of Borepin.
- Author
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Kelch H, Kachel S, Wahler J, Celik MA, Stoy A, Krummenacher I, Kramer T, Radacki K, and Braunschweig H
- Abstract
A new isomer of borepin, identified as 2-borabicyclo[3.2.0]hepta-3,6-diene by single-crystal X-ray diffraction and heteronuclear NMR spectroscopy, was obtained by reaction of 1-mesityl-2,3,4,5-tetraphenylborole with the diaminoalkyne bis(piperidyl)acetylene. Analogous reactions of the alkyne with other borole derivatives generated seven-membered borepins, in which a second equivalent of the alkyne was found to insert into the exocyclic B-C bond. Results of mechanistic DFT studies as well as differences in the reactivity of the boroles toward the diaminoalkyne are discussed., (© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2018
- Full Text
- View/download PDF
39. "Do I Sound Straight?": Acoustic Correlates of Actual and Perceived Sexual Orientation and Masculinity/Femininity in Men's Speech.
- Author
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Kachel S, Simpson AP, and Steffens MC
- Subjects
- Adult, Humans, Male, Stereotyping, Young Adult, Femininity, Homosexuality, Male psychology, Masculinity, Social Perception, Speech Acoustics, Speech Perception
- Abstract
Purpose: This study aims to give an integrative answer on which speech stereotypes exist toward German gay and straight men, whether and how acoustic correlates of actual and perceived sexual orientation are connected, and how this relates to masculinity/femininity. Hence, it tests speech stereotype accuracy in the context of sexual orientation., Method: Twenty-five gay and 26 straight German speakers provided data for a fine-grained psychological self-assessment (e.g., masculinity/femininity) and explicit speech stereotypes. They were recorded for an extensive set of read and spontaneous speech samples using microphones and nasometry. Recordings were analyzed for a variety of acoustic parameters (e.g., fundamental frequency and nasalance). Seventy-four listeners categorized speakers as gay or straight on the basis of the same sentence., Results: Most relevant explicitly expressed speech stereotypes encompass voice pitch, nasality, chromaticity, and smoothness. Demonstrating implicit stereotypes, speakers were perceived as sounding straighter, the lower their median f0, center of gravity in /s/, and mean F2. However, based on actual sexual orientation, straight men only showed lower mean F1 than gay men. Additionally, we found evidence that actual masculinity/femininity and the degree of sexual orientation were reflected in gay and straight men's speech., Conclusion: Implicit and explicit speech stereotypes about gay and straight men do not contain a kernel of truth, and differences within groups are more important than differences between them., Supplemental Material: https://doi.org/10.23641/asha.6484001.
- Published
- 2018
- Full Text
- View/download PDF
40. Dialumination of unsaturated species with a reactive bis(cyclopentadienyl) dialane.
- Author
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Hofmann A, Lamprecht A, González-Belman OF, Dewhurst RD, Jiménez-Halla JOC, Kachel S, and Braunschweig H
- Abstract
A new bis(cyclopentadienyl) dialane is prepared, which shows controlled, selective dialumination reactions with a conventional alkyne, an electron-rich alkyne, and an azide. The reactions provide structurally diverse products, featuring a range of aluminium coordination numbers, cyclopentadienyl binding modes, and cyclic motifs. The variable nature of the bonding in the Cp*Al units allows a range of binding modes depending on the electronic requirements of the Al atom and provides new possibilities to the chemistry of dialanes, as demonstrated by the isolation of a double internal Lewis adduct with "ring-slipped" Cp* rings in this work.
- Published
- 2018
- Full Text
- View/download PDF
41. Abnormal Tin-Boron Exchange in the Attempted Synthesis of a Borylated Borole.
- Author
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Braunschweig H, Dömling M, Kachel S, Kelch H, Kramer T, Krummenacher I, Lenczyk C, Lin S, Lin Z, Possiel C, and Radacki K
- Abstract
Boroles are important motifs within functional materials. With the aim to prepare a pinacolboryl-substituted derivative, the metallacycle transfer from corresponding zirconium and tin precursors has been explored. We show that the reaction of 1,1-dimethyl-2,3,4,5-tetrapinacolborylstannole with dichloro(phenyl)borane does not provide the desired borole, but instead a stannyl-substituted 1-chloroboracyclopent-3-ene. Spectroscopic and structural details of this highly functionalized boracycle indicate that intramolecular interactions between the tin and oxygen atoms of the boryl substituents may account for the unexpected outcome of the tin-boron exchange reaction., (© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2017
- Full Text
- View/download PDF
42. Alkylideneborate zwitterions and C-C coupling by atypical diboration of electron-rich alkynes.
- Author
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Böhnke J, Braunschweig H, Deißenberger A, Dellermann T, Dewhurst RD, Jiménez-Halla JOC, Kachel S, Kelch H, and Prieschl D
- Abstract
The combination of electron-rich diaminoalkynes and ditopic Lewis acids diboranes(4) leads to unusual uncatalysed diboration reactions involving internal Lewis adduct, zwitterion, and C-C bond formation. The products are novel multicyclic, charge-separated compounds with intramolecular dative bonds.
- Published
- 2017
- Full Text
- View/download PDF
43. Acoustic correlates of sexual orientation and gender-role self-concept in women's speech.
- Author
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Kachel S, Simpson AP, and Steffens MC
- Subjects
- Adult, Female, Heterosexuality classification, Humans, Phonetics, Sex Factors, Sexual and Gender Minorities classification, Signal Processing, Computer-Assisted, Young Adult, Acoustics, Gender Identity, Heterosexuality psychology, Homosexuality, Female psychology, Self Concept, Sexual and Gender Minorities psychology, Speech Acoustics, Speech Production Measurement methods, Voice Quality
- Abstract
Compared to studies of male speakers, relatively few studies have investigated acoustic correlates of sexual orientation in women. The present investigation focuses on shedding more light on intra-group variability in lesbians and straight women by using a fine-grained analysis of sexual orientation and collecting data on psychological characteristics (e.g., gender-role self-concept). For a large-scale women's sample (overall n = 108), recordings of spontaneous and read speech were analyzed for median fundamental frequency and acoustic vowel space features. Two studies showed no acoustic differences between lesbians and straight women, but there was evidence of acoustic differences within sexual orientation groups. Intra-group variability in median f0 was found to depend on the exclusivity of sexual orientation; F1 and F2 in /iː/ (study 1) and median f0 (study 2) were acoustic correlates of gender-role self-concept, at least for lesbians. Other psychological characteristics (e.g., sexual orientation of female friends) were also reflected in lesbians' speech. Findings suggest that acoustic features indexicalizing sexual orientation can only be successfully interpreted in combination with a fine-grained analysis of psychological characteristics.
- Published
- 2017
- Full Text
- View/download PDF
44. Elucidating the Reactivity of Vicinal Dicarbenoids: From Lewis Adduct Formation to B-C Bond Activation.
- Author
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Kelch H, Kachel S, Celik MA, Schäfer M, Wennemann B, Radacki K, Petrov AR, Tamm M, and Braunschweig H
- Abstract
The reactivity of the diaminoacetylene Pip-C≡C-Pip (Pip=piperidyl=NC
5 H10 ) towards phenyldichloro- and triphenylborane is presented. In the case of the less Lewis acidic PhBCl2 , the first example of a double Lewis adduct of a vicinal dicarbenoid is reported. For the more Lewis acidic triphenylborane, coordination to the bifunctional carbene leads to a mild B-C bond activation, resulting in a syn-1,2-carboboration. Ensuing cis/trans isomerization yields a novel ethylene-bridged frustrated Lewis pair (FLP). The compounds were characterized using multinuclear NMR spectroscopy, structural analysis, and mass spectrometry. Reactivity studies of both isomers with the N-heterocyclic carbene 1,3-dimethylimidazol-2-ylidene (IMe) aided in elucidating the proposed isomerization pathway. DFT calculations were carried out to elucidate the reaction mechanism. The rather low free energy of activation is consistent with the observation that the reaction proceeds smoothly at room temperature., (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)- Published
- 2016
- Full Text
- View/download PDF
45. Traditional Masculinity and Femininity: Validation of a New Scale Assessing Gender Roles.
- Author
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Kachel S, Steffens MC, and Niedlich C
- Abstract
Gender stereotype theory suggests that men are generally perceived as more masculine than women, whereas women are generally perceived as more feminine than men. Several scales have been developed to measure fundamental aspects of gender stereotypes (e.g., agency and communion, competence and warmth, or instrumentality and expressivity). Although omitted in later version, Bem's original Sex Role Inventory included the items "masculine" and "feminine" in addition to more specific gender-stereotypical attributes. We argue that it is useful to be able to measure these two core concepts in a reliable, valid, and parsimonious way. We introduce a new and brief scale, the Traditional Masculinity-Femininity (TMF) scale, designed to assess central facets of self-ascribed masculinity-femininity. Studies 1-2 used known-groups approaches (participants differing in gender and sexual orientation) to validate the scale and provide evidence of its convergent validity. As expected the TMF reliably measured a one-dimensional masculinity-femininity construct. Moreover, the TMF correlated moderately with other gender-related measures. Demonstrating incremental validity, the TMF predicted gender and sexual orientation in a superior way than established adjective-based measures. Furthermore, the TMF was connected to criterion characteristics, such as judgments as straight by laypersons for the whole sample, voice pitch characteristics for the female subsample, and contact to gay men for the male subsample, and outperformed other gender-related scales. Taken together, as long as gender differences continue to exist, we suggest that the TMF provides a valuable methodological addition for research into gender stereotypes.
- Published
- 2016
- Full Text
- View/download PDF
46. Mild and Complete Carbonyl Ligand Scission on a Mononuclear Transition Metal Complex.
- Author
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Braunschweig H, Celik MA, Dewhurst RD, Kachel S, and Wennemann B
- Abstract
The complete scission of the carbon-oxygen bond of carbon monoxide, while frequently observed on bulk metals and with bimetallic and cluster transition metal complexes, is unknown with monometallic systems. Reaction of a zerovalent iron bis(borylene) complex with a cyclic (alkyl)(amino)carbene revealed a highly selective intramolecular cleavage of the C-O bond of a carbonyl ligand at room temperature, leading to the formation of a highly unusual iron complex containing a base-stabilized (bora)alkylideneborane ligand. DFT investigation of the reaction mechanism suggested that the two Lewis acidic borylene boron atoms cooperate to cleave the C-O multiple bond., (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2016
- Full Text
- View/download PDF
47. Evaporation from open microchannel grooves.
- Author
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Kachel S, Zhou Y, Scharfer P, Vrančić C, Petrich W, and Schabel W
- Subjects
- Diffusion, Hydrodynamics, Volatilization, Water chemistry, Microfluidic Analytical Techniques
- Abstract
The evaporation of water from open u-shaped microchannel grooves was investigated with particular emphasis on the roles of channel width and air flow conditions. Given the small dimensions of the microchannels, all measurements were conducted in a range where convection and diffusion are of equal importance and known correlations for the calculation of mass transfer coefficients cannot be applied. The evaporation rates were measured using a new optical method and a gravimetric method. Both measurement methods yielded mass transfer coefficients that are in agreement with each other. The observed relation between mass transfer coefficient, air velocity and channel width vastly differs from the predictions obtained from macroscopic structures. With respect to diagnostic devices we conclude that analyte concentration in an open microchannel groove strongly increases even within short times due to the evaporation process and we show that wider channels are more favourable in terms of minimizing the relative evaporation rate.
- Published
- 2014
- Full Text
- View/download PDF
48. [2-year observation of a patient with post-traumatic myocardial infarction].
- Author
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Kachel S, Zietek Z, Martini L, and Rottermund T
- Subjects
- Adult, Electrocardiography, Follow-Up Studies, Humans, Male, Myocardial Infarction therapy, Time Factors, Heart Injuries complications, Myocardial Infarction etiology, Wounds, Stab complications
- Published
- 1983
49. [Practolol in the treatment of cardiac arrhythmia resulting from the treatment of bronchospastic disorders with sympathicomimetic drugs].
- Author
-
Kimmel Z and Kachel S
- Subjects
- Acute Disease, Adult, Aged, Arrhythmias, Cardiac drug therapy, Bronchial Spasm drug therapy, Chronic Disease, Drug Evaluation, Female, Humans, Male, Middle Aged, Sympathomimetics therapeutic use, Arrhythmias, Cardiac chemically induced, Practolol therapeutic use, Sympathomimetics adverse effects
- Published
- 1973
50. [Case of electric cardioversion complicated by severe arrhythmia].
- Author
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Kimmel Z, Kachel S, and Chmielak Z
- Subjects
- Humans, Middle Aged, Myocarditis therapy, Electric Countershock adverse effects, Heart Arrest etiology, Ventricular Fibrillation etiology
- Published
- 1974
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