El enfoque de educación por competencias en la capacitación de servidores públicos

El tema de las competencias, ha germinado con la idea de desarrollar en el individuo diferentes capacidades que integradas le permitan desenvolverse en medios y contextos determinados. Uno de estos contextos es precisamente el sector público, donde las personas que dependen del servicio que brinda este sector esperan que sea de calidad y orientado a satisfacer sus necesidades. Una manera de cubrir las expectativas de un servicio público de calidad es la capacitación, la misma que orientada bajo un enfoque por competencias promete desarrollar en el servidor público las capacidades necesarias para cubrir estas expectativas. Una propuesta curricular que coadyuve a una capacitación de calidad, oriente el desarrollo de capacidades y pueda merecer la atención de las instituciones y empresas públicas para mejorar el servicio a la ciudadanía es el propósito que anima este trabajo.

Procesos: revista ecuatoriana de historia. 39 (SOLO LIBROS/Reseñas)

Presenta las reseñas de los siguientes libros: Eloy Alfaro. Narraciones históricas. Quito: Universidad Andina Simón Bolívar, Sede Ecuador / Corporación Editora Nacional, 2012, 368 pp . -- Adolfo León Atehortúa Cruz. Germán Colmenares. Una Nueva Historia. Cali: Universidad del Valle, 2013, 161 pp . -- Fernando Chuquimia Bonifaz. Las Sociedades de Socorros Mutuos y Beneficencia en La Paz, 1883-1920. La Paz: Centro de Estudios para la América Andina y Amazónica, 2013, 255 pp . -- Eliga H. Gould. Among the Powers of the Earth. The American Revolution and the Making of a New World Empire. Cambridge: Harvard University Press, 2012, 301 pp.

Incidencia de los Incentivos Tributarios en los niveles de recaudación del impuesto directo a la renta

En el Art. 285 numeral 3 de la Constitución de la República del Ecuador se enuncia como objetivo específico de la política social la generación de los incentivos para la inversión en los diferentes sectores de la economía y para la producción de bienes y servicios, socialmente deseables y ambientalmente aceptables; concomitantemente en el Título III del Código de la Producción, Comercio e Inversiones en el Art. 24 numeral 1 establece los incentivos generales de aplicación para las inversiones que se ejecuten en cualquier parte del territorio nacional. Partiendo de esta base legal, al ser tantos incentivos no sabemos si se están aplicando correctamente, si se está cumpliendo con el objetivo para el cual fueron creados y si están siendo útiles para la política fiscal como para los contribuyentes, me lleva a plantear esta pregunta de investigación. ¿Cuál es la incidencia de los incentivos generales de aplicación para las inversiones, en la recaudación del Impuesto a la Renta de las sociedades del Ecuador?; para contestarla a lo largo de este estudio de investigación, se analiza el sistema tributario, la política económica, el impuesto a la renta y los incentivos tributarios desde una visón doctrinaria y normativa, pasando a enfatizar en el cumplimiento de los objetivos y aplicación de cada uno de los incentivos generales para las inversiones del Art. 24 del COPCI, análisis y comparación de los niveles de recaudación de impuesto a la renta antes y después de la publicación del COPCI para determinar el impacto a futuro que podrían tener los incentivos generales.

El error judicial inexcusable en el Estado constitucional de derechos y justicia

Esta investigación estudia el rol del juez en el Estado constitucional de derechos y justicia en el Ecuador, el error inexcusable y el procesamiento disciplinario por error judicial inexcusable desde sus principios de legalidad y taxatividad, la etiología del error, el órgano competente y la independencia judicial. Presenta conclusiones y recomendaciones.

El crecimiento de las zonas especiales de desarrollo económico desde la vigencia de los incentivos tributarios contenidos en el Código Orgánico de la Producción, Comercio e Inversiones

Existen zonas especiales de desarrollo económico en nuestro país que se originan en las zonas francas, son destinos aduaneros que se encuentran determinadas áreas geográficas, las cuales gozan de beneficios tributarios. En el Ecuador existen tres tipos de zonas especiales de desarrollo económico: industrial, logístico y tecnológico. Están regidas bajo el Código de Orgánico de Producción, Comercio e Inversiones y son controladas por el Consejo Sectorial de la Producción. Los beneficios tributarios que poseen estas zonas son la reducción de cinco puntos porcentuales al Impuesto a la Renta, la exoneración de aranceles y devolución del impuesto al valor agregado, lo que permiten atraer inversión extranjera e incentivar la creación de nuevas empresas que reemplacen las importaciones, lo que modifica la balanza comercial. Por otra parte, al comparar el marco jurídico de las zonas especiales de desarrollo económico de nuestro país con zonas libres de otros países como Argentina y Chile, encontramos diferencias y semejanzas de conceptualización, objetivos y políticas que giran entorno a las necesidades de cada país, pero en todos los casos lo que se busca es el desarrollo de la economía. No obstante, al crecimiento de las zonas especiales de desarrollo económico en el Ecuador, se han realizado proyecciones de construcción y funcionamiento por etapas, que beneficiaran el área donde se desarrolle el proyecto, a través de generación de empleo y obras rurales, lo que impulsará al país en procesos de transferencia de tecnología e innovación, investigación y desarrollo. Existen tres zonas actualmente en desarrollo, la primera es la ZEDE Yachay, la cual se encuentra en funcionamiento pero aún no se finaliza el proyecto como tal. La segunda es la ZEDE Eloy Alfaro, la que se encuentra en la fase tres de construcción y la tercera es la ZEDE Piady que se encuentra en la primera etapa de construcción.

Toward multifactorial null models of range contraction in terrestrial vertebrates

The contraction of a species’ distribution range, which results from the extirpation of local populations, generally precedes its extinction. Therefore, understanding drivers of range contraction is important for conservation and management. Although there are many processes that can potentially lead to local extirpation and range contraction, three main null models have been proposed: demographic, contagion, and refuge. The first two models postulate that the probability of local extirpation for a given area depends on its relative position within the range; but these models generate distinct spatial predictions because they assume either a ubiquitous (demographic) or a clinal (contagion) distribution of threats. The third model (refuge) postulates that extirpations are determined by the intensity of human impacts, leading to heterogeneous spatial predictions potentially compatible with those made by the other two null models. A few previous studies have explored the generality of some of these null models, but we present here the first comprehensive evaluation of all three models. Using descriptive indices and regression analyses we contrast the predictions made by each of the null models using empirical spatial data describing range contraction in 386 terrestrial vertebrates (mammals, birds, amphibians, and reptiles) distributed across the World. Observed contraction patterns do not consistently conform to the predictions of any of the three models, suggesting that these may not be adequate null models to evaluate range contraction dynamics among terrestrial vertebrates. Instead, our results support alternative null models that account for both relative position and intensity of human impacts. These new models provide a better multifactorial baseline to describe range contraction patterns in vertebrates. This general baseline can be used to explore how additional factors influence contraction, and ultimately extinction for particular areas or species as well as to predict future changes in light of current and new threats.

Socioeconomic correlates of global mammalian conservation status

The main causes of biodiversity decline are related to human use of resources, which is ultimately triggered by the socioeconomic decisions made by individuals and nations. Characterizing the socioeconomic attributes of areas in which biodiversity is most threatened can help us identify decisions and conditions that promote the presence or absence of threats and potentially suggest more sustainable strategies. In this study we explored how diverse indicators of social and economic development correlate with the conservation status of terrestrial mammals within countries explicitly exploring hypothesized linear and quadratic relationships. First, comparing countries with and without threatened mammals we found that those without threatened species are a disparate group formed by European countries and Small Island Developing States (SIDS) with little in common besides their slow population growth and a past of human impacts. Second, focusing on countries with threatened mammals we found that those with a more threatened mammalian biota have mainly rural populations, are predominantly exporters of goods and services, receive low to intermediate economic benefits from international tourism, and have medium to high human life expectancy. Overall, these results provide a comprehensive characterization of the socioeconomic profiles linked to mammalian conservation status of the world's nations, highlighting the importance of transborder impacts reflected by the international flux of goods, services and people. Further studies would be necessary to unravel the actual mechanisms and threats that link these socioeconomic profiles and indicators with mammalian conservation. Nevertheless, this study presents a broad and complete characterization that offers testable hypotheses regarding how socioeconomic development associates with biodiversity.

Generalized drivers in the mammalian endangerment process

An important challenge for conservation today is to understand the endangerment process and identify any generalized patterns in how threats occur and aggregate across taxa. Here we use a global database describing main current external threats in mammals to evaluate the prevalence of distinct threatening processes, primarily of anthropogenic origin, and to identify generalized drivers of extinction and their association with vulnerability status and intrinsic species' traits. We detect several primary threat combinations that are generally associated with distinct species. In particular, large and widely distributed mammals are affected by combinations of direct exploitation and threats associated with increasing landscape modification that go from logging to intense human land-use. Meanwhile, small, narrowly distributed species are affected by intensifying levels of landscape modification but are not directly exploited. In general more vulnerable species are affected by a greater number of threats, suggesting increased extinction risk is associated with the accumulation of external threats. Overall, our findings show that endangerment in mammals is strongly associated with increasing habitat loss and degradation caused by human land-use intensification. For large and widely distributed mammals there is the additional risk of being hunted.

Which intrinsic traits predict vulnerability to extinction depends on the actual threatening processes

Understanding what makes some species more vulnerable to extinction than others is an important challenge for conservation. Many comparative analyses have addressed this issue exploring how intrinsic and extrinsic traits associate with general estimates of vulnerability. However, these general estimates do not consider the actual threats that drive species to extinction and hence, are more difficult to translate into effective management. We provide an updated description of the types and spatial distribution of threats that affect mammals globally using data from the IUCN for 5941 species of mammals. Using these data we explore the links between intrinsic species traits and specific threats in order to identify key intrinsic features associated with particular drivers of extinction. We find that families formed by small-size habitat specialists are more likely to be threatened by habitat-modifying processes; whereas, families formed by larger mammals with small litter sizes are more likely to be threatened by processes that directly affect survival. These results highlight the importance of considering the actual threatening process in comparative studies. We also discuss the need to standardize and rank threat importance in global assessments such as the IUCN Red List to improve our ability to understand what makes some species more vulnerable to extinction than others.

Variability in life-history and ecological traits is a buffer against extinction in mammals

Anthropogenic degradation of the world's ecosystems is leading to a widespread and accelerating loss of biodiversity. However, not all species respond equally to existing threats, raising the question: what makes a species more vulnerable to extinction? We propose that higher intraspecific variability may reduce the risk of extinction, as different individuals and populations within a species may respond differently to occurring threats. Supporting this prediction, our results show that mammalian species with more variable adult body masses, litter sizes, sexual maturity ages and population densities are less vulnerable to extinction. Our findings reveal the role of local variation among populations, particularly of large mammals, as a buffering mechanism against extinction, and emphasise the importance of considering trait variation in comparative analyses and conservation management.

Biases in comparative analyses of extinction risk: mind the gap

1. Comparative analyses are used to address the key question of what makes a species more prone to extinction by exploring the links between vulnerability and intrinsic species’ traits and/or extrinsic factors. This approach requires comprehensive species data but information is rarely available for all species of interest. As a result comparative analyses often rely on subsets of relatively few species that are assumed to be representative samples of the overall studied group. 2. Our study challenges this assumption and quantifies the taxonomic, spatial, and data type biases associated with the quantity of data available for 5415 mammalian species using the freely available life-history database PanTHERIA. 3. Moreover, we explore how existing biases influence results of comparative analyses of extinction risk by using subsets of data that attempt to correct for detected biases. In particular, we focus on links between four species’ traits commonly linked to vulnerability (distribution range area, adult body mass, population density and gestation length) and conduct univariate and multivariate analyses to understand how biases affect model predictions. 4. Our results show important biases in data availability with c.22% of mammals completely lacking data. Missing data, which appear to be not missing at random, occur frequently in all traits (14–99% of cases missing). Data availability is explained by intrinsic traits, with larger mammals occupying bigger range areas being the best studied. Importantly, we find that existing biases affect the results of comparative analyses by overestimating the risk of extinction and changing which traits are identified as important predictors. 5. Our results raise concerns over our ability to draw general conclusions regarding what makes a species more prone to extinction. Missing data represent a prevalent problem in comparative analyses, and unfortunately, because data are not missing at random, conventional approaches to fill data gaps, are not valid or present important challenges. These results show the importance of making appropriate inferences from comparative analyses by focusing on the subset of species for which data are available. Ultimately, addressing the data bias problem requires greater investment in data collection and dissemination, as well as the development of methodological approaches to effectively correct existing biases.

Integrating archaeology and palaeoecology to understand Jê landscapes in southern Brazil

Around AD 1000, the southern Brazilian highlands witnessed a convergence of phenomena: climatic change, the abrupt expansion of Araucaria forest and the appearance of large pit-houses and monumental mound and enclosure complexes, which signal fundamental socio-political and ideological change amongst southern proto-Jê (SPJ) groups. These developments raise intriguing questions regarding the relationships between people, vegetation and climate over the last 2000 years.

Larger brain size indirectly increases vulnerability to extinction in mammals

Although previous studies have addressed the question of why large brains evolved, we have limited understanding of potential beneficial or detrimental effects of enlarged brain size in the face of current threats. Using novel phylogenetic path analysis, we evaluated how brain size directly and indirectly, via its effects on life-history and ecology, influences vulnerability to extinction across 474 mammalian species. We found that larger brains, controlling for body size, indirectly increase vulnerability to extinction by extending the gestation period, increasing weaning age, and limiting litter sizes. However, we found no evidence of direct, beneficial or detrimental, effects of brain size on vulnerability to extinction, even when we explicitly considered the different types of threats that lead to vulnerability. Order-specific analyses revealed qualitatively similar patterns for Carnivora and Artiodactyla. Interestingly, for Primates, we found that larger brain size was directly (and indirectly) associated with increased vulnerability to extinction. Our results indicate that under current conditions the constraints on life-history imposed by large brains outweigh the potential benefits, undermining the resilience of the studied mammals. Contrary to the selective forces that have favoured increased brain size throughout evolutionary history, at present, larger brains have become a burden for mammals.

POLYGLYCOLIC ACID TUBE ASSOCIATED WITH GM1 IN REGENERATION OF PERIPHERAL NERVES

Introduction: Nerve allografting is regarded as a treatment of choice in large neural tissue losses preventing repair by primary anastomosis. In these cases, a synthetic polyglycolic acid tube is an alternative for nerve grafting. On the other hand, several studies have emphasized the importance of neurotrophic factors on neural regeneration, including substances with potential to optimize neural regeneration, especially the GM1, an neurotrophic enhancer factor. Objective: to compare, in rats, the neural regeneration degree using histological analysis, regenerated myelinized axons count, and functional analysis with the use of neurotube and GM1. Methods: This assessment was performed by interposing allograft (group A), polyglycolic acid tube (group B) and polyglycolic acid tube associated to GM1 (group C) on 5-mm sciatic nerve defects. Results: Neuroma formation was found only on group A. Groups A and C showed similar histological patterns, except for the regenerated axons on group C, which were shown to be better organized and myelinized than in group A. Conclusion: on functional recovery, no statistically significant difference was found for the three groups, despite of qualitative and quantitative histological differences found.