Brassica genomics: a complement to, and early beneficiary of, the Arabidopsis sequence.

Those studying the genus Brassica will be among the early beneficiaries of the now-completed Arabidopsis sequence. The remarkable morphological diversity of Brassica species and their relatives offers valuable opportunities to advance our knowledge of plant growth and development, and our understanding of rapid phenotypic evolution

The urban rabies in the province of Buenos Aires, Argentina: origin-evolution-present times

La rabia es una enfermedad infecciosa, zoonótica, caracterizada por alteraciones del sistema nervioso, producida por el virus de la rabia, perteneciente al Género Lyssavirus de la Familia Rhabdoviridae. Es habitualmente transmitida por la mordedura de un animal rabioso que elimina el virus por la saliva. La rabia urbana es la que ocurre en las ciudades, siendo el perro el transmisor y afectado más importante, seguido por el gato y el hombre. El presente trabajo presenta un enfoque global sobre la rabia urbana, enfermedad de los animales y el hombre, en el territorio de la provincia de Buenos Aires, Argentina, hasta el año 2001. Esta provincia presentó el mayor foco de rabia urbana que registró el país desde su aparición en 1806 a consecuencia de las actividades de la 1º invasión inglesa, hasta su erradicación en el año 1984. Durante 1976, el territorio provincial registró 4.759 casos de rabia animal y trece decesos humanos. Se efectúa un encuadre de las situaciones geográficas y políticas de las épocas en que se produjeron acontecimientos importantes y del estado de los conocimientos científicos sobre la enfermedad en esos momentos, que condicionaron y caracterizaron la presentación, manejo y control de esta enfermedad en la provincia.Rabies is an infectious and zoonotic disease characterized by alterations of the nervous system, produced by the rabies virus, which belongs to the genus Lyssavirus of the Rhabdoviridae family. The disease is habitually transmitted by the bite of an infected animal, which eliminates the virus in its saliva. Urban rabies is the one that occurs in the cities, being the dog the most important affected and transmitter of the disease, followed by cat and man. The present work shows a global focus on rabies, animal and man affecting disease, in the territory of the province of Buenos Aires, Argentina. This province presented the biggest focus of urban rabies ever registered in the Argentinian Republic from the moment of the first appearance of the disease, consigned in 1806 and due to the activities of the 1 English Invasion, to the moment of the eradication of the disease in 1984. The subsequent panorama, until 2001 is also following presented. During 1976, the province´s territory registered 4759 cases of animal rabies and 13 human deaths. An alignment of the geographical and political situations of the periods during which important events happened is made. Besides, the state of the scientific knowledge about the disease during these periods, which conditioned and characterized the presentation, handling and control of this disease in the province of Buenos Aires, Argentina, is also analyzed.Facultad de Ciencias Veterinaria

FLOWERING LOCUS C -dependent and -independent regulation of the circadian clock by the autonomous and vernalization pathways

Background The circadian system drives pervasive biological rhythms in plants. Circadian clocks integrate endogenous timing information with environmental signals, in order to match rhythmic outputs to the local day/night cycle. Multiple signaling pathways affect the circadian system, in ways that are likely to be adaptively significant. Our previous studies of natural genetic variation in Arabidopsis thaliana accessions implicated FLOWERING LOCUS C (FLC) as a circadian-clock regulator. The MADS-box transcription factor FLC is best known as a regulator of flowering time. Its activity is regulated by many regulatory genes in the "autonomous" and vernalization-dependent flowering pathways. We tested whether these same pathways affect the circadian system. Results Genes in the autonomous flowering pathway, including FLC, were found to regulate circadian period in Arabidopsis. The mechanisms involved are similar, but not identical, to the control of flowering time. By mutant analyses, we demonstrate a graded effect of FLC expression upon circadian period. Related MADS-box genes had less effect on clock function. We also reveal an unexpected vernalization-dependent alteration of periodicity. Conclusion This study has aided in the understanding of FLC's role in the clock, as it reveals that the network affecting circadian timing is partially overlapping with the floral-regulatory network. We also show a link between vernalization and circadian period. This finding may be of ecological relevance for developmental programing in other plant species

The urban rabies in the province of Buenos Aires, Argentina: origin-evolution-present times

La rabia es una enfermedad infecciosa, zoonótica, caracterizada por alteraciones del sistema nervioso, producida por el virus de la rabia, perteneciente al Género Lyssavirus de la Familia Rhabdoviridae. Es habitualmente transmitida por la mordedura de un animal rabioso que elimina el virus por la saliva. La rabia urbana es la que ocurre en las ciudades, siendo el perro el transmisor y afectado más importante, seguido por el gato y el hombre. El presente trabajo presenta un enfoque global sobre la rabia urbana, enfermedad de los animales y el hombre, en el territorio de la provincia de Buenos Aires, Argentina, hasta el año 2001. Esta provincia presentó el mayor foco de rabia urbana que registró el país desde su aparición en 1806 a consecuencia de las actividades de la 1º invasión inglesa, hasta su erradicación en el año 1984. Durante 1976, el territorio provincial registró 4.759 casos de rabia animal y trece decesos humanos. Se efectúa un encuadre de las situaciones geográficas y políticas de las épocas en que se produjeron acontecimientos importantes y del estado de los conocimientos científicos sobre la enfermedad en esos momentos, que condicionaron y caracterizaron la presentación, manejo y control de esta enfermedad en la provincia.Rabies is an infectious and zoonotic disease characterized by alterations of the nervous system, produced by the rabies virus, which belongs to the genus Lyssavirus of the Rhabdoviridae family. The disease is habitually transmitted by the bite of an infected animal, which eliminates the virus in its saliva. Urban rabies is the one that occurs in the cities, being the dog the most important affected and transmitter of the disease, followed by cat and man. The present work shows a global focus on rabies, animal and man affecting disease, in the territory of the province of Buenos Aires, Argentina. This province presented the biggest focus of urban rabies ever registered in the Argentinian Republic from the moment of the first appearance of the disease, consigned in 1806 and due to the activities of the 1 English Invasion, to the moment of the eradication of the disease in 1984. The subsequent panorama, until 2001 is also following presented. During 1976, the province´s territory registered 4759 cases of animal rabies and 13 human deaths. An alignment of the geographical and political situations of the periods during which important events happened is made. Besides, the state of the scientific knowledge about the disease during these periods, which conditioned and characterized the presentation, handling and control of this disease in the province of Buenos Aires, Argentina, is also analyzed.Facultad de Ciencias Veterinaria

The urban rabies in the province of Buenos Aires, Argentina: origin-evolution-present times

La rabia es una enfermedad infecciosa, zoonótica, caracterizada por alteraciones del sistema nervioso, producida por el virus de la rabia, perteneciente al Género Lyssavirus de la Familia Rhabdoviridae. Es habitualmente transmitida por la mordedura de un animal rabioso que elimina el virus por la saliva. La rabia urbana es la que ocurre en las ciudades, siendo el perro el transmisor y afectado más importante, seguido por el gato y el hombre. El presente trabajo presenta un enfoque global sobre la rabia urbana, enfermedad de los animales y el hombre, en el territorio de la provincia de Buenos Aires, Argentina, hasta el año 2001. Esta provincia presentó el mayor foco de rabia urbana que registró el país desde su aparición en 1806 a consecuencia de las actividades de la 1º invasión inglesa, hasta su erradicación en el año 1984. Durante 1976, el territorio provincial registró 4.759 casos de rabia animal y trece decesos humanos. Se efectúa un encuadre de las situaciones geográficas y políticas de las épocas en que se produjeron acontecimientos importantes y del estado de los conocimientos científicos sobre la enfermedad en esos momentos, que condicionaron y caracterizaron la presentación, manejo y control de esta enfermedad en la provincia.Rabies is an infectious and zoonotic disease characterized by alterations of the nervous system, produced by the rabies virus, which belongs to the genus Lyssavirus of the Rhabdoviridae family. The disease is habitually transmitted by the bite of an infected animal, which eliminates the virus in its saliva. Urban rabies is the one that occurs in the cities, being the dog the most important affected and transmitter of the disease, followed by cat and man. The present work shows a global focus on rabies, animal and man affecting disease, in the territory of the province of Buenos Aires, Argentina. This province presented the biggest focus of urban rabies ever registered in the Argentinian Republic from the moment of the first appearance of the disease, consigned in 1806 and due to the activities of the 1 English Invasion, to the moment of the eradication of the disease in 1984. The subsequent panorama, until 2001 is also following presented. During 1976, the province´s territory registered 4759 cases of animal rabies and 13 human deaths. An alignment of the geographical and political situations of the periods during which important events happened is made. Besides, the state of the scientific knowledge about the disease during these periods, which conditioned and characterized the presentation, handling and control of this disease in the province of Buenos Aires, Argentina, is also analyzed.Facultad de Ciencias Veterinaria

Eyes on the account size:Interactions between attention and budget in consumer choice*

The context surrounding a consumer decision, such as one's overall budget available for pur-chases, can exert a strong effect on the subjective value of a product. Across three eye-tracking studies, we explore the attentional processes through which budget size influences consumers' purchasing behavior. Higher budgets increased and sped up purchasing even when items were affordable at all budget sizes. Moreover, attention interacted with budget size to promote pur-chasing at higher budgets. Finally, individual differences in the magnitude of the budget effect related to attentional patterns: those whose decisions depended more on budget exhibited more budget-price transitions and less variability in search patterns compared to those whose decisions were less dependent on budget. These findings indicate that attention moderates the effect of budgets on purchasing decisions, allowing low budgets to serve as self-control devices and large budgets to generate impulse purchases

Self-serving Bias in Redistribution Choices: Accounting for Beliefs and Norms

People with higher-incomes tend to support less redistribution than lower-income people. This has been attributed not only to self-interest, but also to psychological mechanisms including differing beliefs about the hard work or luck underlying inequality, differing fairness views, and differing perceptions of social norms. In this study, we directly measure each of these mechanisms and compare their mediating roles in the relationship between status and redistribution. In our experiment, participants complete real-effort tasks and then are randomly assigned a high or low pay rate per correct answer to exogenously induce (dis)advantaged status. Participants are then paired and those assigned the role of dictator decide how to divide their joint earnings. We find that advantaged dictators keep more for themselves than disadvantaged dictators and report different fairness views and beliefs about task performance, but not different beliefs about social norms. Further, only fairness views play a significant mediating role between status and allocation differences, suggesting this is the primary mechanism underlying self-serving differences in support for redistribution

Enfermedades infecciosas de los animales y zoonosis

La obra aborda las enfermedades infecciosas que afectan a los animales de importancia en la región por su capacidad de presentar importante casuística y problemas de control, afectando la salud animal y la producción de alimentos y en muchos casos posibilitando su transmisión al hombre, con diversos niveles de gravedad, desde presentaciones leves hasta afecciones de importancia. Se estudia la descripción de las mismas, las causas, la susceptibilidad a ellas que presentan las diversas especies animales, su sintomatología, control y prevención y la forma de controlarlas, erradicarlas, crear zonas libres y evitar que reingresen, cerrando las posibilidades de que las zoonosis de importancia pasen a los humanos. Se han incluido además algunas enfermedades de relevancia que incapacitan al país para la exportación de ciertas especies animales y sus productos. El sistema de notificación, las resoluciones y las leyes atinentes al control de las enfermedades animales forman parte de los temas tratados en cada capítulo. Además se ha incorporado un capítulo con todos los aspectos relativos al estudio de estas enfermedades y sus definiciones y características.Facultad de Ciencias Veterinaria

Las autovacunas en el control de la mastitis estafilocócica

El problema que representa la mastitis subclínica es que obliga a afrontar permanentemente la persistencia de algunas causas que mantienen un recuento alto de células somáticas y bacterias en la leche, el costo de diagnóstico y tratamiento con antibióticos y el problema del descarte de leche por el residuo de antibiótico en la misma. Por otra parte mensualmente se debe superar el control del recuento celular por la usina compradora. El uso de antibióticos plantea la necesidad de realizar pruebas de sensibilidad y el control y exclusión del ordeño de las vacas tratadas. Objetivos: Utilizar específicamente las cepas bacterianas que producen el problema. Evitar el uso de antibióticos que producen residuos objetables.Mesa: Alimentos y Vacunas.Facultad de Ciencias Veterinaria