37 research outputs found
Book Review: The Happiness Track
Book review of The Happiness Track: How to Apply the Science of Happiness to Accelerate Your Success by Emma Seppala, written for the Spring 2016 Semester MGMT 641: Organizational Leadership and Project Team Management class
Problemáticas de la innovación en la ganadería bovina de la provincia de Chaco: enfoque cualitativo
El presente trabajo de investigación, realizado en dos regiones chaqueñas: Oeste y Este, con criterio
multienfoque,interdisciplinario y con fuerte participación de los productores, brinda un diagnóstico de la percepción de la ganadería bovina para carne y de las razones que subyacen a la toma de decisión en adopción de tecnologías, sean éstas de proceso o de insumo. El trabajo va mas allá de la mirada técnica, dado que se construyó a partir de la visión del contexto de los productores ganaderos, valorando sus palabras, experiencias, saberes, preocupaciones y problemas. En virtud de ello, se provee información valiosa para propiciar una construcción colectiva de propuestas de intervención acordes a la complejidad de la problemática encontrada en la región.Instituto de EconomíaFil: Ondo Misi, Sergio Gustavo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; ArgentinaFil: Giancola, Silvana Ines. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Políticas, Económicas y Sociales. Instituto de Economía; ArgentinaFil: Pellerano, Laura. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Colonia Benítez; ArgentinaFil: Calvo, Sonia Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Agropecuarias; ArgentinaFil: Balbuena, Osvaldo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Colonia Benitez; ArgentinaFil: D'angelo, Maria Leonor. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Regional Chaco-Formosa; ArgentinaFil: Buschiazzo, Marina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; ArgentinaFil: Di Giano, Silvina. Investigadora independiente; ArgentinaFil: Gatti, Nicolás. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigación en Ciencias Políticas, Económicas y Sociales. Instituto de Economía; ArgentinaFil: Ferber, Otto Federico. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Sáenz Peña; Argentin
Developmental perspectives on interpersonal affective touch
In the last decade, philosophy, neuroscience and psychology alike have paid increasing attention to the study of interpersonal affective touch, which refers to the emotional and motivational facets of tactile sensation. Some aspects of affective touch have been linked to a neurophysiologically specialised system, namely the C tactile (CT) system. While the role of this sys-tem for affiliation, social bonding and communication of emotions have been widely investigated, only recently researchers have started to focus on the potential role of interpersonal affective touch in acquiring awareness of the body as our own, i.e. as belonging to our psychological ‘self’. We review and discuss recent developmental and adult findings, pointing to the central role of interpersonal affective touch in body awareness and social cognition in health and disorders. We propose that interpersonal affective touch, as an interoceptive modality invested of a social nature, can uniquely contribute to the ongoing debate in philosophy about the primacy of the relational nature of the minimal self
: Entomopathogenic viruses in the biological control of insects
International audienceThis chapter presents a summary of the possible uses of viruses to control insect pests of crops. Since the first relatively empirical works through to current developments, the potential of different families of viruses to regulate insect populations has been recognized. However, only viruses of one family, the baculovirus, have been able to be registered as biological control agents. The process necessary to go from discovering a viral isolate to producing a biopesticide is shown with real examples. Previous application strategies for viruses against insects have given rise to host resistance. We suggest an alternative strategy which adopts an ecological point of view in order to ensure sustainable use of these valuable control agents.En este capítulo se sintetizan las posibilidades de uso de virus para controlar los insectos plagas de los cultivos. Desde los primeros trabajos relativamente empíricos hasta los desarrollos actuales, se describe el potencial de diferentes familias de virus para regular las poblaciones de insectos. Sin embargo, solo virus de una familia, los baculovirus, han podido ser registrados como agentes de control biológico. El proceso necesario para llegar del descubrimiento de un aislado viral hasta la producción de un bioinsecticida se muestra con ejemplos reales. Las estrategias de este uso han conducido, en un caso, a la aparición de resistencia, lo cual permite plantear las diferencias entre el modo de acción natural y el aplicado en los agroecosistemas, proponiendo nuevas vías de uso, más sostenibles desde el punto de vista ecológico
: Entomopathogenic viruses in the biological control of insects
International audienceThis chapter presents a summary of the possible uses of viruses to control insect pests of crops. Since the first relatively empirical works through to current developments, the potential of different families of viruses to regulate insect populations has been recognized. However, only viruses of one family, the baculovirus, have been able to be registered as biological control agents. The process necessary to go from discovering a viral isolate to producing a biopesticide is shown with real examples. Previous application strategies for viruses against insects have given rise to host resistance. We suggest an alternative strategy which adopts an ecological point of view in order to ensure sustainable use of these valuable control agents.En este capítulo se sintetizan las posibilidades de uso de virus para controlar los insectos plagas de los cultivos. Desde los primeros trabajos relativamente empíricos hasta los desarrollos actuales, se describe el potencial de diferentes familias de virus para regular las poblaciones de insectos. Sin embargo, solo virus de una familia, los baculovirus, han podido ser registrados como agentes de control biológico. El proceso necesario para llegar del descubrimiento de un aislado viral hasta la producción de un bioinsecticida se muestra con ejemplos reales. Las estrategias de este uso han conducido, en un caso, a la aparición de resistencia, lo cual permite plantear las diferencias entre el modo de acción natural y el aplicado en los agroecosistemas, proponiendo nuevas vías de uso, más sostenibles desde el punto de vista ecológico
Genetic and Biological Analysis of Colombian Phthorimaea operculella Granulovirus Isolated from Tecia solanivora (Lepidoptera: Gelechiidae)▿
Tecia solanivora (Lepidoptera: Gelechiidae) is an invasive potato pest of the north of South America that recently colonized zones where Phthorimaea operculella (Lepidoptera: Gelechiidae), a taxonomically related insect, was established. Nowadays, both species can be found in most areas in different proportions. The Phthorimaea operculella granulovirus (PhopGV) was found to efficiently control P. operculella and was used as a biopesticide in storage conditions. However, no appropriate biological control methods exist for T. solanivora, and the use of granulovirus isolates would provide a solution. The Colombian Corporation for Agricultural Research (CORPOICA) carried out several T. solanivora larva samplings in Colombia with the aim of finding potential isolates. Five geographical granulovirus isolates from T. solanivora (VG001, VG002, VG003, VG004, and VG005) were found, and molecular analysis by REN profiles shows three different genotypic variants in Colombia. Analysis of their genomes revealed their relatedness to PhopGV. Two isolates exhibited submolar bands in their REN patterns, suggesting a mixture of viral genotypes. These data were confirmed by PCR amplification and sequencing of particular regions of the viral genomes. Their biological activity was assayed on both hosts, T. solanivora and P. operculella. A significantly higher pathogenicity in both hosts was observed with isolates VG001 and VG005 than with isolate VG003 or a Peruvian isolate (from P. operculella) used as a reference in the bioassay. Based on their molecular and biological activity characteristics, VG001 and VG005 isolates should be selected for further analysis in order to establish their potential as biological control agents
Molecular design of melt-spinnable co-polymers as Si-B-C-N fiber precursors
International audienceTwo series of co-polymers with the general formula [B(CHSiCH(NH)(NCH))], i.e., composed of CHSiCH(NH) and CHSiCH(NCH) (CH = CHCH, CHCH) building blocks in a well defined x : y ratio, have been synthesized by hydroboration of dichloromethylvinylsilane with borane dimethyl sulfide followed by successive reactions with lithium amide and methylamine according to controlled ratios. The role of the chemistry behind their syntheses has been studied in detail by solid-state NMR, FT-IR and elemental analyses. Then, the intimate relationship between the chemistry and the melt-spinnability of these polymers was discussed. By keeping x = 0.50 and increasing y above 0.50, i.e., obtaining methylamine excess, the co-polymers contained more ending groups and especially more tetracoordinated boron, thus allowing tuning very precisely the chemical structure of the preceramic polymer in order to meet the requirements for melt-spinning. The curing treatment under ammonia at 200 °C efficiently rendered the green fibers infusible before their subsequent pyrolysis under nitrogen at 1000 °C to generate Si-B-C-N ceramic fibers. Interestingly, it could be possible to produce also low diameter hollow fibers with relatively high mechanical properties for a further exploration as membrane materials