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5 results on '"Yáñez, J. M."'

2. Theory of the phase transition from a disordered cubic crystal to a glass

Author

Yanez, J. M., Molina, M. I., and Mattis, D. C.

Subjects
Condensed Matter - Statistical Mechanics
Abstract

We calculate thermodynamic properties of a disordered model insulator, starting from the ideal simple-cubic lattice ($g = 0$) and increasing the disorder parameter $g$ to $\gg 1/2$. As in the earlier Einstein- and Debye- approximations, the ground state energy is discontinuous at $g_{c} = 1/2$. For $gg_{c}$, $C \sim T$. The van Hove singularities disappear at {\em any} finite magnitude $g$ of the disorder. For $g>1/2$ we discover novel {\em fixed points} in the self-energy and spectral density of this model glass., Comment: submitted to PRL (9 pages, 4 figures)

Published
2001

3. From Disordered Crystal to Glass: Exact Theory

Author

Yanez, J. M., Molina, M. I., and Mattis, D. C.

Subjects
Condensed Matter - Disordered Systems and Neural Networks, Condensed Matter - Statistical Mechanics
Abstract

We calculate thermodynamic properties of a disordered model insulator, starting from the ideal simple-cubic lattice ($g = 0$) and increasing the disorder parameter $g$ to $\gg 1/2$. As in earlier Einstein- and Debye- approximations, there is a phase transition at $g_{c} = 1/2$. For $gg_{c}$, $C \sim T$. The van Hove singularities disappear at {\em any finite $g$}. For $g>1/2$ we discover novel {\em fixed points} in the self-energy and spectral density of this model glass., Comment: Submitted to Phys. Rev. Lett., 8 pages, 4 figures

Published
2001

4. Commentaries on Viewpoint : Physiology and fast marathons

Author

Santos-Concejero, J., González-Mohíno, F., González-Ravé, J. M., Perrey, S., Dewolf, A. H., Yates, B. A., Anton, U., Tadej, D., González-Rayas, J. M., Rayas-Gómez, A. L., González-Yáñez, J. M., Lepers, R., Stapley, P., Louis, J., Proessl, F., Nikolaidis, P. T., Knechtle, B., Muniz-Pumares, D., Hunter, B., Bottoms, L., Bontemps, B., Valenzuela, P. L., Boullosa, D., Del Coso, J., Blagrove, R. C., Hayes, P. R., Millet, G. P., Malatesta, D., de Almeida Costa Campos, Y., Pereira Guimarães, M., Macedo Vianna, J., Fernandes da Silva, S., Silva Marques de Azevedo, P. H., Paris, H. L., Leist, M. A., Lige, M. T., Malysa, W., Oumsang, A. S., Sinai, E. C., Hansen, R. K., Secher, N. H., Volianitis, S., Hottenrott, L., Hottenrott, K., Gronwald, T., Senefeld, J. W., Fernandes, R. J., Vilas-Boas, J. P., Riveros-Rivera, A., Böning, D., Craighead, D. H., Kipp, S., Kram, R., Zinner, C., Sperlich, B., Holmberg, Hans-Christer, Muniz-Pardos, B., Sutehall, S., Angeloudis, K., Guppy, F. M., Bosch, A., Pitsiladis, Y., Andrade, D. C., Del Rio, R., Ramirez-Campillo, R., Lopes, T. R., Silva, B. M., Ives, S. J., Weyand, P. G., Brietzke, C., Franco-Alvarenga, P. E., Meireles dos Santos, T., Pires, F. O., Layec, G., Hoogkamer, W., Balestrini, C. S., Goss, C. S., Gabler, M. C., Escalera, A., Bielko, S. A., Chapman, R. F., Santos-Concejero, J., González-Mohíno, F., González-Ravé, J. M., Perrey, S., Dewolf, A. H., Yates, B. A., Anton, U., Tadej, D., González-Rayas, J. M., Rayas-Gómez, A. L., González-Yáñez, J. M., Lepers, R., Stapley, P., Louis, J., Proessl, F., Nikolaidis, P. T., Knechtle, B., Muniz-Pumares, D., Hunter, B., Bottoms, L., Bontemps, B., Valenzuela, P. L., Boullosa, D., Del Coso, J., Blagrove, R. C., Hayes, P. R., Millet, G. P., Malatesta, D., de Almeida Costa Campos, Y., Pereira Guimarães, M., Macedo Vianna, J., Fernandes da Silva, S., Silva Marques de Azevedo, P. H., Paris, H. L., Leist, M. A., Lige, M. T., Malysa, W., Oumsang, A. S., Sinai, E. C., Hansen, R. K., Secher, N. H., Volianitis, S., Hottenrott, L., Hottenrott, K., Gronwald, T., Senefeld, J. W., Fernandes, R. J., Vilas-Boas, J. P., Riveros-Rivera, A., Böning, D., Craighead, D. H., Kipp, S., Kram, R., Zinner, C., Sperlich, B., Holmberg, Hans-Christer, Muniz-Pardos, B., Sutehall, S., Angeloudis, K., Guppy, F. M., Bosch, A., Pitsiladis, Y., Andrade, D. C., Del Rio, R., Ramirez-Campillo, R., Lopes, T. R., Silva, B. M., Ives, S. J., Weyand, P. G., Brietzke, C., Franco-Alvarenga, P. E., Meireles dos Santos, T., Pires, F. O., Layec, G., Hoogkamer, W., Balestrini, C. S., Goss, C. S., Gabler, M. C., Escalera, A., Bielko, S. A., and Chapman, R. F.

Published
2020
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5. Genetic (co)variation in skin pigmentation patterns and growth in rainbow trout.

Author

Rodríguez, F. H., Cáceres, G., Lhorente, J. P., Newman, S., Bangera, R., Tadich, T., Neira, R., and Yáñez, J. M.

Abstract

From a physiological-behavioral perspective, it has been shown that fish with a higher density of black eumelanin spots are more dominant, less sensitive to stress, have higher feed intake, better feed efficiency and therefore are larger in size. Thus, we hypothesized that genetic (co)variation between skin pigmentation patterns and growth exists and it is advantageous in rainbow trout. The objective of this study was to determine the genetic relationships between skin pigmentation patterns and BW in a breeding population of rainbow trout. We performed a genetic analysis of pigmentation traits including dorsal color (DC), lateral band (LB) intensity, amount of spotting above (SA) and below (SB) the lateral line, and BW at harvest (HW). Variance components were estimated using a multi-trait linear animal model fitted by restricted maximum likelihood. Estimated heritabilities were 0.08±0.02, 0.17±0.03, 0.44±0.04, 0.17±0.04 and 0.23±0.04 for DC, LB, SA, SB and HW, respectively. Genetic correlations between HW and skin color traits were 0.42±0.13, 0.32±0.14 and 0.25±0.11 for LB, SA and SB, respectively. These results indicate positive, but low to moderate genetic relationships between the amount of spotting and BW in rainbow trout. Thus, higher levels of spotting are genetically associated with better growth performance in this population. [ABSTRACT FROM AUTHOR]

Published
2019
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