The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
Carlos Rouco - One of the best experts on this subject based on the ideXlab platform.
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Large Scale Assessment of myxomatosis prevalence in european wild rabbits oryctolagus cuniculus 60 years after first outbreak in spain
Research in Veterinary Science, 2017Co-Authors: Rafael Villafuerte, Francisca Castro, Esther Ramirez, Irene Cotilla, Francisco Parra, Miguel Delibesmateos, Pilar Recuerda, Carlos RoucoAbstract:Myxomatosis is a viral disease that affects European rabbits (Oryctolagus cuniculus) worldwide. In Spain, populations of wild rabbits drastically decreased in the 1950s after the first outbreak of myxomatosis. Since that first appearance, it seems to be an annual epizootic in Spain with periodic outbreaks, predominantly in summer and autumn. Taking into account rabbit population structure, abundance, and genetic lineage, this paper attempts to make a Large-Scale characterization of myxomatosis seroprevalence based on the immune status of 29 rabbit populations distributed throughout Spain, where O. cuniculus cuniculus and O. c. algirus, the two known rabbit subspecies, naturally inhabit. A total of 654 samples were collected between 2003 and 2009, and seroprevalence of antibodies against Myxoma virus (MYXV) was determined. Overall, our results revealed that 53% of the rabbit samples were positive to antibodies against MYXV. Newborn and juvenile rabbits were the most susceptible animals to the virus, with 19% and 16% seropositivity for newborn and juveniles, respectively, while adult rabbits were the most protected, with 65% of seropositive samples. This suggests that prevalence is negatively related to the proportion of newborn and juvenile rabbits in a population. Our results also showed that seroprevalence against MYXV tended to be higher in high-abundance populations. In contrast, no differences were detected in seroprevalence between rabbit subspecies. This study confirms that >60years since first outbreak, myxomatosis is an endemic disease in Spain. Based on the results, the establishment of a myxomatosis surveillance protocol is proposed.
Francisca Castro - One of the best experts on this subject based on the ideXlab platform.
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Large Scale Assessment of myxomatosis prevalence in european wild rabbits oryctolagus cuniculus 60 years after first outbreak in spain
Research in Veterinary Science, 2017Co-Authors: Rafael Villafuerte, Francisca Castro, Esther Ramirez, Irene Cotilla, Francisco Parra, Miguel Delibesmateos, Pilar Recuerda, Carlos RoucoAbstract:Myxomatosis is a viral disease that affects European rabbits (Oryctolagus cuniculus) worldwide. In Spain, populations of wild rabbits drastically decreased in the 1950s after the first outbreak of myxomatosis. Since that first appearance, it seems to be an annual epizootic in Spain with periodic outbreaks, predominantly in summer and autumn. Taking into account rabbit population structure, abundance, and genetic lineage, this paper attempts to make a Large-Scale characterization of myxomatosis seroprevalence based on the immune status of 29 rabbit populations distributed throughout Spain, where O. cuniculus cuniculus and O. c. algirus, the two known rabbit subspecies, naturally inhabit. A total of 654 samples were collected between 2003 and 2009, and seroprevalence of antibodies against Myxoma virus (MYXV) was determined. Overall, our results revealed that 53% of the rabbit samples were positive to antibodies against MYXV. Newborn and juvenile rabbits were the most susceptible animals to the virus, with 19% and 16% seropositivity for newborn and juveniles, respectively, while adult rabbits were the most protected, with 65% of seropositive samples. This suggests that prevalence is negatively related to the proportion of newborn and juvenile rabbits in a population. Our results also showed that seroprevalence against MYXV tended to be higher in high-abundance populations. In contrast, no differences were detected in seroprevalence between rabbit subspecies. This study confirms that >60years since first outbreak, myxomatosis is an endemic disease in Spain. Based on the results, the establishment of a myxomatosis surveillance protocol is proposed.
Miguel Delibesmateos - One of the best experts on this subject based on the ideXlab platform.
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Large Scale Assessment of myxomatosis prevalence in european wild rabbits oryctolagus cuniculus 60 years after first outbreak in spain
Research in Veterinary Science, 2017Co-Authors: Rafael Villafuerte, Francisca Castro, Esther Ramirez, Irene Cotilla, Francisco Parra, Miguel Delibesmateos, Pilar Recuerda, Carlos RoucoAbstract:Myxomatosis is a viral disease that affects European rabbits (Oryctolagus cuniculus) worldwide. In Spain, populations of wild rabbits drastically decreased in the 1950s after the first outbreak of myxomatosis. Since that first appearance, it seems to be an annual epizootic in Spain with periodic outbreaks, predominantly in summer and autumn. Taking into account rabbit population structure, abundance, and genetic lineage, this paper attempts to make a Large-Scale characterization of myxomatosis seroprevalence based on the immune status of 29 rabbit populations distributed throughout Spain, where O. cuniculus cuniculus and O. c. algirus, the two known rabbit subspecies, naturally inhabit. A total of 654 samples were collected between 2003 and 2009, and seroprevalence of antibodies against Myxoma virus (MYXV) was determined. Overall, our results revealed that 53% of the rabbit samples were positive to antibodies against MYXV. Newborn and juvenile rabbits were the most susceptible animals to the virus, with 19% and 16% seropositivity for newborn and juveniles, respectively, while adult rabbits were the most protected, with 65% of seropositive samples. This suggests that prevalence is negatively related to the proportion of newborn and juvenile rabbits in a population. Our results also showed that seroprevalence against MYXV tended to be higher in high-abundance populations. In contrast, no differences were detected in seroprevalence between rabbit subspecies. This study confirms that >60years since first outbreak, myxomatosis is an endemic disease in Spain. Based on the results, the establishment of a myxomatosis surveillance protocol is proposed.
Thomas Kempka - One of the best experts on this subject based on the ideXlab platform.
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thermo mechanical simulations of rock behavior in underground coal gasification show negligible impact of temperature dependent parameters on permeability changes
Energies, 2015Co-Authors: Christopher Otto, Thomas KempkaAbstract:A coupled thermo-mechanical model has been developed to assess permeability changes in the vicinity of an underground coal gasification (UCG) reactor resulting from excavation and thermo-mechanical effects. Thereto, we consider a stepwise UCG reactor excavation based on a pre-defined coal consumption rate and dynamic thermal boundary conditions. Simulation results demonstrate that thermo-mechanical rock behavior is mainly driven by the thermal expansion coefficient, thermal conductivity, tensile strength and elastic modulus of the surrounding rock. A comparison between temperature-dependent and temperature-independent parameters applied in the simulations indicates notable variations in the distribution of total displacements in the UCG reactor vicinity related to thermal stress, but only negligible differences in permeability changes. Hence, temperature-dependent thermo-mechanical parameters have to be considered in the Assessment of near-field UCG impacts only, while far-field models can achieve a higher computational efficiency by using temperature-independent thermo-mechanical parameters. Considering the findings of the present study in the Large-Scale Assessment of potential environmental impacts of underground coal gasification, representative coupled simulations based on complex 3D Large-Scale models become computationally feasible.
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european geosciences union general assembly 2015 egu division energy resources environment ere thermo mechanical simulations confirm temperature dependent mudrock properties are nice to have in far field environmental Assessments of un derground coal
2015Co-Authors: Christopher Otto, Thomas KempkaAbstract:Coupled thermo-mechanical simulations were carried out to quantify permeability changes in representative coal measure strata surrounding an underground coal gasification (UCG) reactor. Comparing temperature-dependent and -independent rock pr operties applied in our simulations, notable differences in rock failure behavior, but only insignificant differences in spatial pe rmeability development are observed. Hence, temperature-dependent parameters are required for simulations of the close reacto r vicinity, while far-field models can be sufficiently determined by temperature-independent parameters. Considering our f indings in the Large-Scale Assessment of potential environmental impacts of UCG, representative coupled simulations based on complex thermo-hydro-mechanical and regional-Scale models become computationally feasible. © 2015 The Authors. Published by Elsevier Ltd. Peer-review under responsibility of the GFZ German Research Centre for Geosciences.
William Condon - One of the best experts on this subject based on the ideXlab platform.
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Large Scale Assessment locally developed measures and automated scoring of essays fishing for red herrings
Assessing Writing, 2013Co-Authors: William CondonAbstract:Abstract Automated Essay Scoring (AES) has garnered a great deal of attention from the rhetoric and composition/writing studies community since the Educational Testing Service began using e-rater® and the Criterion® Online Writing Evaluation Service as products in scoring writing tests, and most of the responses have been negative. While the criticisms leveled at AES are reasonable, the more important, underlying issues relate to the aspects of the writing construct of the tests AES can rate. Because these tests underrepresent the construct as it is understood by the writing community, such tests should not be used in writing Assessment, whether for admissions, placement, formative, or achievement testing. Instead of continuing the traditional, Large-Scale, commercial testing enterprise associated with AES, we should look to well-established, institutionally contextualized forms of Assessment as models that yield fuller, richer information about the student's control of the writing construct. Such tests would be more valid, as reliable, and far fairer to the test-takers, whose stakes are often quite high.
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assessing and teaching what we value the relationship between college level writing and critical thinking abilities
Assessing Writing, 2004Co-Authors: William Condon, Diane KellyrileyAbstract:Washington State University (WSU), has developed two Large-Scale Assessment programs to evaluate student learning outcomes. The Largest, the Writing Assessment Program, diagnoses student writing abilities at entry and mid-career to determine the type of support needed to navigate the expectations of our writing-rich curriculum. The second, the Critical Thinking Project, has developed an Assessment instrument, the WSU Guide to Rating Critical Thinking, adaptable by faculty to their instructional and evaluative methodologies, which we can employ across the curriculum to evaluate student critical thinking outcomes. The development of these two measures has provided insights into limitations of each measure and the student learning outcomes produced. Further, the results of our studies question current mainstream writing Assessment practices, common assumptions about writing and critical thinking, and several aspects of higher education classroom and curricular praxis.
