Educational Practices in Technical Schools in Argentina: A Case Study in Neuquen

This work is proposed to analyze senses and possibilities of educational practices that take place in technical schools of Neuquen Province Argentina Therefore we focus in technical middle school education and training processes integrations to unlock disputes diffiulties and tensions that are expressed in the implementation of educational practices To do that we study legislations and analyze quallitatively the difficulties in practice implementations from study case of three technical schools We hold that technical schools solve and live contingencies in various ways and that be in situation in practice frame enables students to locate the knowledge imparted by the institution where stands technical knowledges of the specialities where puts in evidence the institutionalizing capacity which promotes school in achiving knowledges and proffesional capacitie

Tamaño y orientación de cuevas de tatú carreta (Priodontes maximus) en el oeste de la provincia de Formosa, Argentina

Giant armadillos (Priodontes maximus) are one of the most endangered mammals in the Gran Chaco. They are largely nocturnal, highly fossorial and solitary, characteristics that have limited the understanding of their behavior and ecology. We report on the results of a study of the structure of 32 giant armadillo burrows in 25,000 ha of semi-arid forest owned by Toba aborigines of Formosa, Argentina. Burrow entrances were on average 43 cm wide and 36 cm high and more likely to be facing west (24) than east (8).Los tatú carreta (Priodontes maximus) son uno de los mamíferos en mayor peligro de extinción del Gran Chaco. Son animales principalmente nocturnos, fosoriales y solitarios, características que han limitado el conocimiento sobre su comportamiento y ecología. Presentamos en este trabajo los resultados de un estudio para caracterizar la estructura de 32 cuevas de tatú carreta en 25,000 ha de bosques semi-áridos propiedad de comunidades Toba de Formosa, Argentina. Las entradas de las cuevas eran, en promedio, de 43 cm de ancho y 36 cm de alto, y estaban más frecuentemente orientadas hacia el oeste (24) que hacia el este (8).Fil: Ceresoli, Natalia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaFil: Fernandez Duque, Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina. University of Pennsylvania; Estados Unido

Scenes From Tick Physiology: Proteins of Sialome Talk About Their Biological Processes

Ticks are blood-sucking parasites with different strategies of feeding depending on the tick family. The major families are Ixodidae or Argasidae, being slow or fast feeders, respectively. In the recent years, the advances in molecular sequencing techniques have enabled to gain knowledge about the proteome of the tick''s salivary glands. But an holistic view of the biological processes underlying the expression of the sialome has been neglected. In this study we propose the use of standard biological processes as a tool to draw the physiology of the tick''s salivary glands. We used published data on the sialome of Rhipicephalus sanguineus s.l. (Ixodidae) and Ornithodoros rostratus (Argasidae). A partial set of proteins obtained by these studies were used to define the biological process(es) in which proteins are involved. We used a directed network construction in which the nodes are proteins (source) and biological processes (target), separately for the low-level processes ("children") and the top-level ones ("parents"). We applied the method to feeding R. sanguineus at different time slices, and to different organs of O. rostratus. The network connects the proteins and the processes with a strength directly proportional to the transcript per millions of each protein. We used PageRank as a measure of the importance of each biological process. As suggested in previous studies, the sialome of unfed R. sanguineus express about 30% less biological processes than feeding ticks. Another decrease (25%) is noticed at the middle of the feeding and before detachment. However, top-level processes are deeply affected only at the onset of feeding, demonstrating a redundancy in the feeding. When ixodid-argasid are compared, large differences were observed: they do not share 91% of proteins, but share 90% of the biological processes. However, caution must be observed when examining these results. The hypothesis of different proteins linked to similar biological process(es) in both ticks is an extreme not confirmed in this study. Considering the limitations of this study, carried out with a selected set of proteins, we propose the networks of proteins of sialome linked to their biological processes as a tool aimed to explain the biological processes behind families of proteins

Little Big Stories: Case Studies in Diversifying the Archival Record through Community Oral Histories

The use and development of oral history programs has become a popular way for archives to document events and communities, either as a supplement to traditional records or as discrete collections. In particular, projects that focus on involving groups traditionally underrepresented within the archival record are becoming increasingly common in both large institutions and small community archives. This article presents three case studies of oral history projects dedicated to forging ties in the community and increasing diversity in their collections. In these case studies, the authors discuss the inceptions of their projects and the ups and downs of developing community oral history programs, including building trust, engaging community members, participation of volunteers and students, consideration of alternative models such as story circles, establishment of processes and procedures that can be replicated and sustained, lessons learned and future steps. The authors also reflect on the impact of unexpected roadblocks, particularly the COVID-19 pandemic. By understanding the ways these elements shape oral history programs, archivists can find new ways to frame those programs around the communities in question, creating more inclusive collections and better serving both institution and community

Crowding under diverse distance criteria for niche formation in multimodal optimization

Niche formation allows evolutionary algorithms to be used when the location and maintenance of multiple solutions appertaining to diverse areas of the phenotypic space is required. Consequently the application field can be extended to multiobjective optimization, simulation of complex systems and multimodal function optimization. In this later case a conventional evolutionary algorithm tends to group the final population around the fittest individual. Thus, other areas of interest in the search process are lost. Niching methods permits the maintenance of solutions located around these areas of interest. This contribution briefly describe problems preventing niche formation in conventional genetic algorithms, a crowding method for niche formation and analysis of results when optimizing two multimodal functions.Facultad de Informátic