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265 results on '"Goudarzi K"'

1. Ultra low loss broadband 1 $\times$ 2 optical power splitters with various splitting ratios

Author

Goudarzi, K., Kim, S., Park, I., and Han, H.

Subjects
Physics - Optics, Physics - Applied Physics
Abstract

We designed Si-based all-dielectric 1 $\times$ 2 TE and TM power splitters with various splitting ratios and simulated them using the inverse design of adjoint and numerical 3D finite-difference time-domain methods. The proposed devices exhibit ultra-high transmission efficiency above 98 and 99\%, and excess losses below 0.1 and 0.035 dB, for TE and TM splitters, respectively. The merits of these devices include a minor footprint of 2.2 $\times$ 2.2 $\mu$m $\times$ $\mu$m and a broad operating bandwidth of 200 nm with a center wavelength of $\lambda$ = 1.55 $\mu$ m.

Published
2021

21. Numerical study of airflow around vehicle A-pillar region and windnoise generation prediction

Author

Shojaefard, M.H., Goudarzi, K., and Fotouhi, H.

Subjects
Air flow -- Models, Aerodynamic noise -- Models, Science and technology
Abstract

Flow separation and reattachment around the vehicle A-pillar region dictates strong pressure fluctuations on the side window surfaces and can also lead to generate aerodynamic noise. The objective of this work is to investigate qualitative flow visualization of airflow behaviour around vehicle A-pillar and its potential to generate windnoise in this region. By means of Computational Fluid Dynamic (CFD) under laboratory operating conditions, a series of three-dimensional Navier-Stokes simulations for the vortical flow around two simplified basic car models with different A-pillar/windshield geometry were carried out at different cruising speed. Both models were made with 60[degrees] flat inclination angles but with deferent A-pillar/windshield curvature, a small semi-ellipsoidal shape, a slanted sharp-edged shape. Investigations were carried out at velocities 60,100 and 140 for 0 and 15 degrees yaw angles. Results of mean pressure coefficient obtaining using CFD modeling were also compared against available experimental data. Furthermore, using Boundary Layer Noise Source Model, an approximate measure of the local contribution to total acoustic power per unit surface area was carried out in a given turbulence field. The studies provided reasonable agreement against available experimental data. The studies show that the surface mean pressure coefficients magnitudes are independent of Reynolds numbers and dependent largely to A-pillar and windshield effective corner radii. In addition, surface acoustic power level analyses show that A-pillar and windshield local corner radii effects significantly to potential of noise generation around A-pillar region. Keywords: A-pillar, A-pillar curvature, Yaw angle, Mean pressure coefficient, Aerodynamic noise, INTRODUCTION As engine, tire, and other noise reduced and as driving speeds increased, aerodynamic noise sources on ground vehicles were becoming relatively more important. They often dominate at cruise speeds [...]

Published
2009

22. The numerical estimation of thermal contact resistance in contacting surfaces

Author

Shojaefard, M.H. and Goudarzi, K.

Subjects
Science and technology
Abstract

For some manufacturing processes, the heat transfer between the components, the tools and the environment has an effect on tool-life and the accuracy of the formed component. Consequently, the measurement of Thermal Contact Resistance (TCR) is of increasing interest to researchers and industrial engineers participating in the manufacture of high-precision components. A new transient method and measurement apparatus are used in which the measurements are conducted on specimens, which are retained under pressure. An apparent advantage of this method is the ability to estimate the TCR under specifically controlled conditions. The other advantage is that no prior information is needed on the variation of the TCR, since the solution automatically determines the functional form over the domain specified. Therefore, in this research, a new method of determining TCR has been successfully used to measure the dependence of TCR on the pressure and the specimen texture. Key words: Heat transfer, thermal contact conductance, inverse problem, INTRODUCTION The energy expended to plastically deform materials in manufacturing processes such as metal-forming processes is converted almost entirely into heat. This energy increases the temperature of the formed component [...]

Published
2008

23. Identification of new quantitative trait loci (other than the PRNP gene) modulating the scrapie incubation period in sheep

Author

Moreno, C.R., Cosseddu, G.M., Schibler, L., Roig, A., Moazami-Goudarzi, K., Andreoletti, O., Eychenne, F., Lajous, D., Schelcher, F., Cribiu, E.P., Laurent, P., Vaiman, D., and Elsen, J.M.

Subjects
Scrapie -- Risk factors, Scrapie -- Genetic aspects, Scrapie -- Research, Quantitative trait loci -- Identification and classification, Biological sciences
Abstract

Although susceptibility to scrapie is largely controlled by the PRNP gene, we have searched for additional genomic regions that affect scrapie incubation time in sheep, using two half-sib families with a susceptible PRNP genotype and naturally infected by scrapie. Quantitative trait loci were detected on OAR6 and OAR18.

Published
2008

26. Numerical Simulation of 2_D turbidity currents and wall jet

Author

Shojaeefard, M.H., Goudarzi, K., and Jahromi, H. Ghasvari

Subjects
Reynolds number -- Usage, Reynolds number -- Analysis, Turbidity currents -- Properties, Turbidity currents -- Analysis, Science and technology
Abstract

Abstract: Dense underflows are continuous currents, which move down the slope due to the fact that, their density are heavier than ambient water. In turbidity currents the density differences arises from suspended solids. Vicinity of the wall make density currents and wall jets similar in some sense but Variation of density cause this flows more complex than wall jets. An improved form of 'near-wall'k-[epsilon]turbulence model is chosen which preserve all characteristics of both density and wall jet currents and a compression is made between them. Then the outcomes from low Reynolds number k-[espilon] model is compared with [bar][v.sup.2]-fmodel which show similarity. Also results show good agreement with experimental data. Key words: Turbidity currents, wall jet,k-[epsilon]turbulence model, [bar][v.sup.2]-f turbulence model, INTRODUCTION The gravity currents on the inclined boundaries are formed when the inflow fluid has a density difference with the ambient fluid and a tangential component of gravity becomes the [...]

Published
2007

27. Is a multivariate consensus representation of genetic relationships among populations always meaningful?

Author

Moazami-Goudarzi, K. and Laloe, D.

Subjects
Genetics -- Research, Population genetics -- Research, Phylogeny -- Research, Gene mutations -- Physiological aspects, Genetic markers -- Usage, Biological sciences
Abstract

To determine the relationships among closely related populations or species, two methods are commonly used in the literature: phylogenetic reconstruction or multivariate analysis. The aim of this article is to assess the reliability of multivariate analysis. We describe a method that is based on principal component analysis and Mantel correlations, using a two-step process: The first step consists of a single-marker analysis and the second step tests if each marker reveals the same typology concerning population differentiation. We conclude that if single markers are not congruent, the compromise structure is not meaningful. Our model is not based on any particular mutation process and it can be applied to most of the commonly used genetic markers. This method is also useful to determine the contribution of each marker to the typology of populations. We test whether our method is efficient with two real data sets based on microsatellite markers. Our analysis suggests that for closely related populations, it is not always possible to accept the hypothesis that an increase in the number of markers will increase the reliability of the typology analysis.

Published
2002

29. Differentiation of European cattle by AFLP fingerprinting

Author

Negrini, R., Nijman, I. J., Milanesi, E., Moazami-Goudarzi, K., Williams, J. L., Erhardt, G., Dunner, S., Rodellar, C., Valentini, A., Bradley, D. G., Olsaker, I., Kantanen, J., Ajmone-Marsan, P., and Lenstra, J. A.

Published
2007

37. Genetic characterization of Southwestern European bovine breeds: a historical and biogeographical reassessment with a set of 16 microsatellites

Author

Beja-Pereira, A., Alexandrino, P., Bessa, I., Carretero, Y., Dunner, S., Ferrand, N., Jordana, J., Laloe, D., Moazami-Goudarzi, K., Sanchez, A., and Canon, J.

Subjects
Biological diversity -- Genetic aspects, Genetic variation -- Research, Genetic variation -- Demographic aspects, Variation (Biology) -- Genetic aspects, Variation (Biology) -- Demographic aspects, Cattle -- Genetic aspects, Cattle -- Demographic aspects, Biogeography -- Research, Heredity -- Research, Heredity -- Genetic aspects, Biological sciences
Abstract

Research has been conducted on Iberian cattle origin. The authors have investigated the genetic data combined with the geographical positioning via the use of geostatistical models, and have characterized Portugues, Spanish and French cattle breeds for their genetic diversity.

Published
2003

38. Marker-assisted conservation of European cattle breeds: an evaluation

Author

Lenstra, J.A., Nijman, I.J., Eding, H., Engelsma, K.A., Bijma, P., Garcia, D., Canon, J., Dunner, S., Moazami Goudarzi, K., Laloe, D., Williams, J.L., Wiener, P., Burton, D., Erhardt, G., Jann, O., Weimann, C., Prinzenberg, E.M., Harlizius, B., Barre Dirie, A., Mengers, A., Looft, C., Kalm, E., Rodellar, C., Zaragoza, P., Martin Burriel, I., Sanchez, A., Ajmone Marsan, P., Negrini, R., Milanesi, E., Valentini, A., Savarese, M.C., Marchitelli, C., Zanotti, M., Ceriotti, G., Pilla, F., Bruzzone, A., Iamartino, D., Olsaker, I., Holm, L.E., Mommens, G., Dolf, G., Hiemstra, S.H., and Windig, J.J.

Subjects
Genetic Markers, Conservation of Natural Resources, Genotype, business.industry, Cattle, Conservation, Genetic diversity, Kinship, Microsatellite, Weitzman, Settore AGR/17 - Zootecnica Generale e Miglioramento Genetico, Genetic Variation, General Medicine, Breeding, Biology, Biotechnology, Environmental protection, Genetics, Animals, Animal Science and Zoology, business, Microsatellite Repeats
Abstract

Two methods have been developed for the assessment of conservation priorities on the basis of molecular markers. According to the Weitzman approach, contributions to genetic diversity are derived from genetic distances between populations. Alternatively, diversity within and across populations is optimized by minimizing marker-estimated kinships. We have applied, for the first time, both methods to a comprehensive data set of 69 European cattle breeds, including all cosmopolitan breeds and several local breeds, for which genotypes of 30 microsatellite markers in 25-50 animals per breed have been obtained. Both methods were used to calculate the gain in diversity if a breed was added to a set of nine non-endangered breeds. Weitzman-derived diversities were confounded by genetic drift in isolated populations, which dominates the genetic distances but does not necessarily increase the conservation value of a breed. Marker-estimated kinships across populations were less disturbed by genetic drift than the Weitzman diversities and assigned high conservation values to Mediterranean breeds, which indeed have genetic histories that differ from the non-endangered breeds. Prospects and limitations of marker-assisted decisions on conservation priorities are discussed.

Published
2006
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39. Adaptation of Mediterranean local cattle breeds to climate changes: a preliminary study on genome-wide diversity

Author

Casu, S., Ciampolini, Roberta, Mastrangelo, S., Flori, L., Moazami Goudarzi, K., Sechi, T., Casabianca, F., Lauvie, A., Gautier, M., Carta, A., Portolano, B., and Laloë, D.

Subjects
Principal Components Analysis, Genetic Adaptation, SNP Markers, Cattle Breeds, Genetic Adaptation, Climate Changes, Genome-wide diversity, SNP Markers, Principal Components Analysis, Co-inertia Analysis, Climate Changes, Co-inertia Analysis, Genome-wide diversity, Cattle Breeds
Published
2015

40. Revisiting AFLP fingerprinting for an unbiased assessment of genetic structure and differentiation of taurine and zebu cattle

Author

Utsunomiya, Yuri T., Bomba, Lorenzo, Lucente, Giordana, Colli, Licia, Negrini, Riccardo, Lenstra, Johannes A., Erhardt, Georg, Garcia, José F., Ajmone-Marsan, Paolo, Moazami-Goudarzi, K., Williams, J., Wiener, P., Olsaker, I., Kantanen, J., Dunner, S., Cañón, J., Rodellar, C., Martín-Burriel, I., Valentini, A., Zanotti, M., Holm, L. E., Eythorsdottir, E., Mommens, G., Polygen, Van Haeringen, Nijman, I. J., Dolf, G., Bradley, D. G., Algemeen Onderzoek DGK, LS IRAS Tox Algemeen, Dep Natuurkunde, Faculty of Veterinary Medicine Research Groups, Algemeen Onderzoek DGK, LS IRAS Tox Algemeen, Dep Natuurkunde, Faculty of Veterinary Medicine Research Groups, Universidade Estadual Paulista (Unesp), Univ Cattol Sacro Cuore, Univ Utrecht, and Univ Giessen

Subjects
Genetic Markers, Conservation of Natural Resources, AFLP, Genotype, ved/biology.organism_classification_rank.species, Introgression, Breeding, Genetic differentiation, Revisiting AFLP, Ascertainment bias, Genetic variation, genetic structure, Genetics, Animals, Cluster Analysis, Genetics(clinical), Amplified Fragment Length Polymorphism Analysis, Genetics (clinical), Models, Genetic, Settore AGR/17 - ZOOTECNICA GENERALE E MIGLIORAMENTO GENETICO, biology, ved/biology, Taurine cattle, Genetic Variation, Aurochs, Zebu, biology.organism_classification, humanities, Genetics, Population, Genetic marker, Genetic structure, Amplified fragment length polymorphism, Cattle, Research Article
Abstract

Made available in DSpace on 2014-12-03T13:07:04Z (GMT). No. of bitstreams: 0 Previous issue date: 2014-04-17Bitstream added on 2014-12-03T13:24:33Z : No. of bitstreams: 1 WOS000335177200001.pdf: 750548 bytes, checksum: 075b52b143f984a79a48dec1b9a68ce6 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Background: Descendants from the extinct aurochs (Bos primigenius), taurine (Bos taurus) and zebu cattle (Bos indicus) were domesticated 10,000 years ago in Southwestern and Southern Asia, respectively, and colonized the world undergoing complex events of admixture and selection. Molecular data, in particular genome-wide single nucleotide polymorphism (SNP) markers, can complement historic and archaeological records to elucidate these past events. However, SNP ascertainment in cattle has been optimized for taurine breeds, imposing limitations to the study of diversity in zebu cattle. As amplified fragment length polymorphism (AFLP) markers are discovered and genotyped as the samples are assayed, this type of marker is free of ascertainment bias. In order to obtain unbiased assessments of genetic differentiation and structure in taurine and zebu cattle, we analyzed a dataset of 135 AFLP markers in 1,593 samples from 13 zebu and 58 taurine breeds, representing nine continental areas.Results: We found a geographical pattern of expected heterozygosity in European taurine breeds decreasing with the distance from the domestication centre, arguing against a large-scale introgression from European or African aurochs. Zebu cattle were found to be at least as diverse as taurine cattle. Western African zebu cattle were found to have diverged more from Indian zebu than South American zebu. Model-based clustering and ancestry informative markers analyses suggested that this is due to taurine introgression. Although a large part of South American zebu cattle also descend from taurine cows, we did not detect significant levels of taurine ancestry in these breeds, probably because of systematic backcrossing with zebu bulls. Furthermore, limited zebu introgression was found in Podolian taurine breeds in Italy.Conclusions: The assessment of cattle diversity reported here contributes an unbiased global view to genetic differentiation and structure of taurine and zebu cattle populations, which is essential for an effective conservation of the bovine genetic resources. Univ Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil Univ Cattol Sacro Cuore, Inst Zootech, Piacenza, Italy Univ Cattol Sacro Cuore, BioDNA Biodivers & Ancient DNA Res Ctr, Piacenza, Italy Univ Utrecht, Fac Vet Med, Utrecht, Netherlands Univ Giessen, Inst Anim Breeding & Genet, D-35390 Giessen, Germany Univ Estadual Paulista, Fac Med Vet Aracatuba, BR-16050680 Aracatuba, SP, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Med Vet Aracatuba, BR-16050680 Aracatuba, SP, Brazil FAPESP: 11/16643-2 FAPESP: 13/12829-0

Published
2014
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43. On the breeds of cattle-Historic and current classifications

Author

Felius, M., Koolmees, Peter A., Theunissen, B., Baumung, R., Manatrinon, S., Mommens, G., Holm, L. -E., Withen, K. B., Pedersen, B. V., Gravlund, P., Viinalass, H., Kantanen, J., Tapio, I., M. H., Li, Moazami-Goudarzi, K., Gautier, M., Denis, Laloë, Oulmouden, A., Levéziel, H., Taberlet, P., Harlizius, B., Simianer, H., Täubert, H., Erhardt, G., Jann, O., Weimann, C., Prinzenberg, E. -M., Medugorac, I., Medugorac, A., Förster, M., Mix, H. M., Looft, C., Kalm, E., Bradley, D. G., Edwards, C. J., Machugh, D. E., Freeman, A. R., Ajmone Marsan, P., Negrini, R., Longeri, M., Ceriotti, G., Zanotti, M., Marletta, D., Criscione, A., Valentini, A., Marchitelli, C., Pariset, L., Savarese, M. C., Pilla, F., Grislis, Z., Miceikienė, I., Nijman, I. J., van Haeringen, W., van de Goor, L., Olsaker, I., Ginja, C., Gama, L. T., Mateus, J. C., Beja-Pereira, A., Ferrand, N., Ivanova, Z., Popov, R., Ammosov, I., Kiselyova, T., Marzanov, N., Stojanovic, S., Simčič, M., Dovč, P., Kompan, D., Dunner, S., Rodellar, C., Martín-Burriel, I., Sánchez, A., Piedrafita, J., Azor, P. J., Delgado, J. V., Martínez-Martínez, A., Molina, A., Rodero, E., Dolf, G., Williams, J. L., Wiener, P., Bruford, M. W., Bray, T. C., Alderson, L., Penedo, M. C. T., Lenstra, J. A., Lenstra, Johannes A., Utrecht University [Utrecht], and European Cattle Genetic Diversity Consortium

Subjects
breeds, breed, [SDV]Life Sciences [q-bio], Ecology (disciplines), Breeds, Zoology, Ethnic origin, Subspecies, Q1, Crossbreed, 03 medical and health sciences, symbols.namesake, QH301, aurochs, auroch, lcsh:QH301-705.5, 030304 developmental biology, Nature and Landscape Conservation, 2. Zero hunger, 0303 health sciences, Genetic diversity, biology, Ecology, Ecological Modeling, Linnaean taxonomy, 0402 animal and dairy science, 04 agricultural and veterinary sciences, Aurochs, biology.organism_classification, cattle, classification, Classification, 040201 dairy & animal science, Agricultural and Biological Sciences (miscellaneous), Breed, Ecological Modelling, lcsh:Biology (General), Evolutionary biology, symbols, Cattle
Abstract

Chantier qualité GA Liste des auteurs de l'European Cattle Genetic Consortium, classés par pays : Austria: R. Baumung, S. Manatrinon, BOKU University, Vienna; Belgium: G. Mommens, University of Ghent, Merelbeke; Denmark: L.-E. Holm, Aarhus University, Tjele; K.B. Withen, B.V. Pedersen, P. Gravlund, University of Copenhagen, Copenhagen; Estonia: H. Viinalass, Estonian University of Life Sciences, Tartu; Finland: J. Kantanen, I. Tapio, M.H. Li, MTT, Jokioinen; France: K. Moazami-Goudarzi, M. Gautier, Denis Laloë, INRA, Jouy-en-Josas; A. Oulmouden, H. Levéziel, INRA, Limoges; P. Taberlet, Université Joseph Fourier et CNRS, Grenoble; Germany: B. Harlizius, School of Veterinary Medicine, Hannover; H. Simianer, H. Täubert, Georg-August-Universität, Göttingen; G. Erhardt, O. Jann, C. Weimann, E.-M. Prinzenberg, Justus-Liebig Universität, Giessen; I. Medugorac, A. Medugorac, M. Förster, Ludwig-Maximilians Universität, Munich; H.M. Mix, Naturschutz International, Grünheide; C. Looft, E. Kalm, Christian-Albrechts-Universität, Kiel; Ireland: D.G. Bradley, C.J. Edwards, D.E. MacHugh, A.R. Freeman, Trinity College, Dublin; Italy: P. Ajmone Marsan, R. Negrini, Università Cattolica del S. Cuore, Piacenza; M. Longeri, G. Ceriotti, M. Zanotti, Università degli Studi di Milano; D. Marletta, A. Criscione, Universita degli Studi di Catania, Catania; A. Valentini, C. Marchitelli, L. Pariset, M.C. Savarese, Università della Tuscia, Viterbo; F. Pilla, Università del Molise, Campobasso; Latvia: Z. Grislis, Latvia University of Agriculture, Jelgava; Lithuania: I. Miceikienė, Lithuanian Veterinary Academy, Kaunas; Netherlands: I.J. Nijman, Utrecht University; W. van Haeringen, L. van de Goor, Van Haeringen Laboratory, Wageningen; Norway: I. Olsaker, Norwegian School of Veterinary Science, Oslo; Portugal: C. Ginja, L.T.Gama, Instituto Nacional de Recursos Biológicos—INIA, Lisbon University, Lisboa; L.T. Gama, Instituto Nacional de Recursos Biológicos-INIA, I.P., Vale de Santarem; J.C. Mateus, Universidade de Trás-os-Montes e Alto Douro, Vila Real; A. Beja-Pereira, N. Ferrand, Oporto University; Russia: Z. Ivanova, R. Popov, I. Ammosov, Yakutian Research Institute of Agricultural Sciences, Yakutsk, Sakha; T. Kiselyova, All-Russian Research Institute for Farm Animals and Breeding, St. Petersburgh-Pushkin; N. Marzanov, All-Russian Research Institute of Animal Husbandry, Dubrovitsy; Serbia: S. Stojanovic, Ministry of Agriculture and Water Management, Belgrade; Slovenia: M. Simčič, P. Dovč, D.Kompan, University of Ljubljana, Domzale; Spain: S. Dunner, Universidad Complutense de Madrid; C. Rodellar, I. Martín-Burriel, Veterinary Faculty, Zaragoza; A. Sánchez, J. Piedrafita, Universitat Autònoma de Barcelona; P.J. Azor, J.V. Delgado, A. Martínez-Martínez, A. Molina, E. Rodero, University of Córdoba; Switzerland: G. Dolf, University of Berne; UK: J.L. Williams, P. Wiener, Roslin Institute; M.W. Bruford, T.C. Bray, Cardiff University, Cardiff; L. Alderson, Countrywide Livestock Ltd, Shrewsbury; USA: M.C.T. Penedo. University of California, Davis, CA; International audience; Classification of cattle breeds contributes to our understanding of the history of cattle and is essential for an effective conservation of genetic diversity. Here we review the various classifications over the last two centuries and compare the most recent classifications with genetic data. The classifications devised during the 19th to the late 20th century were in line with the Linnaean taxonomy and emphasized cranial or horn morphology. Subsequent classifications were based on coat color, geographic origin or molecular markers. Several theories were developed that linked breed characteristics either to a supposed ancestral aurochs subspecies or to a presumed ethnic origin. Most of the older classifications have now been discarded, but have introduced several Latin terms that are still in use. The most consistent classification was proposed in 1995 by Felius and emphasizes the geographic origin of breeds. This is largely in agreement with the breed clusters indicated by a biochemical and molecular genetic analysis, which reflect either groups of breeds with a common geographic origin or single breeds that have expanded by export and/or crossbreeding. We propose that this information is also relevant for managing the genetic diversity of cattle.

Published
2011
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44. Geographic Patterns of Molecular Diversity and Paternal Lineages of European cattle

Author

Lenstra, J A, Nijman, I J, Eding, H, Engelsma, K A, Bijma, P, Garcia, D, Cañón, J, Dunner, S, Moazami-Goudarzi, K, Laloe, D, Williams, J L, Wiener, P, Burton, D, Erhardt, G, Jann, O, Weimann, C, Prinzenberg, E M, Harlizius, B, Barre-Dirie, B, Mengers, A, Looft, C, Kalm, E, Rodellar, C, Zaragoza, P, Martin-Burriel, I, Sanchez, A, Ajmone-Marsan, P, Negrini, R, Milanesi, E, Valentini, A, Savarese, M C, Marchitelli, C, Zanotti, M, Ceriotti, G, Pilla, F, Bruzzone, A, Iamartino, D, Olsaker, I, Holm, Lars-Erik, Mommens, G, Dolf, G, Hiemstra, S J, and Winding, J J

Published
2009

45. Short communication. IL-1 family members as possible candidate genes affecting economically important traits in cattle

Author

Marcos-Carcavilla, A., Calvo, J.H., González, C., Moazami-Goudarzi, K., Laurent, P., Bertaud, M., Hayes, H., Alves, M.E.F., and Serrano, M.

Subjects
GANADO BOVINO, GENES, MEJORAMIENTO ANIMAL, CRITERIOS DE SELECCION, CITOQUINAS, INTERLEUQUINAS, SANIDAD ANIMAL, RENDIMIENTO CARNICO, CATTLE, ANIMAL BREEDING, SELECTION CRITERIA, CYTOKINES, INTERLEUKINS, ANIMAL HEALTH, MEAT YIELD, BREEDING AND GENETICS
Abstract

Health problems in cattle cause considerable economic losses for the producers. Proinflammatory cytokines have been shown to play important roles in different aspects of animal health and production. In the present work, interleukin-1 beta and interleukin-1 receptor antagonist genes (IL1B and IL1RN, respectively) have been localized on bovine chromosome 11 (BTA11q22). The precise location for IL1RN is reported and discrepancies concerning the exact position of IL1B (BTA 11q22 or BTA 11q23/11q24) are solved. In addition, the BTA11q22 region has been shown to carry several quantitative trait loci intervals affecting cattle production. Thus, it may be interesting to consider these two cytokines in order to develop more efficient breeding schemes and improve the accuracy and intensity of selection programs., Los problemas sanitarios causan grandes pérdidas económicas a los ganaderos. Se ha demostrado que las citoquinas proinflamatorias desempeñan importantes papeles en distintos aspectos relacionados con la salud y la producción animal. En este trabajo se han localizado los genes que codifican para la interleuquina-1 beta y el antagonista del receptor de la interleuquina-1 (IL1B y IL1RN, respectivamente) en el cromosoma 11 bovino (BTA11q22). De este modo, se ha establecido la localización precisa de IL1RN y se han resuelto las discrepancias alrededor de la posición exacta de IL1B (BTA 11q22 ó BTA 11q23/11q24). Además, se ha visto que la región BTA11q22 es portadora de varios intervalos cromosómicos que afectan a caracteres productivos de interés en ganadería. De manera que sería interesante tener en cuenta estas dos citoquinas a la hora de desarrollar eficientes esquemas de producción y de mejorar la precisión y la intensidad de los programas de selección.

Published
2007

46. A New Supercritical Carbon Dioxide Brayton Cycle with High Efficiency.

Author

Purjam, M., Goudarzi, K., and Keshtgar, M.

Subjects
*HEAT engines, *SUPERCRITICAL carbon dioxide, *HEAT transfer, *FIRST law of thermodynamics, *THERMAL efficiency
Abstract

Designing new and efficient heat engines and increasing the efficiency of previous ones is one of the researchers' interests in the field of thermodynamics. In this regard, what is mainly concerned is to design a cycle with the positive features of previous cycles, such as less pollution, and higher power-to-weight ratio and efficiency. One of these cycles is the supercritical carbon dioxide cycle (SCDC). The main goal of this research is designing a highly efficient SCDC with pessimistic and relatively optimistic efficiencies of 45% and 47%. This paper includes the complete first law analysis of the designed cycle, designing and discussion of efficiency improvement methods and comparison of SCDC with other power cycles. The sensitivity of the cycle efficiency to some important parameters has also been studied. [ABSTRACT FROM AUTHOR]

Published
2017
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47. Molecular differentiation of European Cattle breeds

Author

Lenstra, J.A., Nijman, I.J., Moazami Goudarzi, K., Laloë, D., Williams, J.L., Wiener, P., Burton, D., Erhardt, G., Jann, O., Weimann, C., Prinzenberg, E.M., Harlizius, B., Looft, C., Dunner, S., Canon, J., Rodellar, C., Zaragoza, P., Martin Burriel, I., Sanchez, A., Piedrafita, J., Ajmone Marsan, P., Negrini, R., Milanesi, E., Valentini, A., Savarese, M.C., Marchitelli, C., Zanotti, M., Ceriotti, G., Pilla, F., Bruzzone, A., Iamartino, D., Bradley, D., Machugh, D.E., Freeman, A.R., Medugorac, I., Medugorac, A., Mix, H., Förster, M., Kantanen, J., Olsaker, I., Holm, L.E., Miceikienė, I., Grislis, Z., Viinalass, H., Danell, B., Eythorsdottir, E., Mommens, G., Van Haeringen, C., Taberlet, P., Luikart, G., Beja Pereira, A., Ferrand, N., Mateus, J.C., Dolf, G., and Felius, M.

Subjects
Settore AGR/17 - Zootecnica Generale e Miglioramento Genetico
Published
2004

48. Revisiting AFLP fingerprinting for an unbiased assessment of genetic structure and differentiation of taurine and zebu cattle

Author

Algemeen Onderzoek DGK, LS IRAS Tox Algemeen, Dep Natuurkunde, Faculty of Veterinary Medicine Research Groups, Utsunomiya, Yuri T., Bomba, Lorenzo, Lucente, Giordana, Colli, Licia, Negrini, Riccardo, Lenstra, Johannes A., Erhardt, Georg, Garcia, José F., Ajmone-Marsan, Paolo, Moazami-Goudarzi, K., Williams, J., Wiener, P., Olsaker, I., Kantanen, J., Dunner, S., Cañón, J., Rodellar, C., Martín-Burriel, I., Valentini, A., Zanotti, M., Holm, L. E., Eythorsdottir, E., Mommens, G., Polygen, Van Haeringen, Nijman, I. J., Dolf, G., Bradley, D. G., Algemeen Onderzoek DGK, LS IRAS Tox Algemeen, Dep Natuurkunde, Faculty of Veterinary Medicine Research Groups, Utsunomiya, Yuri T., Bomba, Lorenzo, Lucente, Giordana, Colli, Licia, Negrini, Riccardo, Lenstra, Johannes A., Erhardt, Georg, Garcia, José F., Ajmone-Marsan, Paolo, Moazami-Goudarzi, K., Williams, J., Wiener, P., Olsaker, I., Kantanen, J., Dunner, S., Cañón, J., Rodellar, C., Martín-Burriel, I., Valentini, A., Zanotti, M., Holm, L. E., Eythorsdottir, E., Mommens, G., Polygen, Van Haeringen, Nijman, I. J., Dolf, G., and Bradley, D. G.

Published
2014

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