Social learning as a requirement for rural development: The connectivity of Salinas, San Luis Potosí

It is postulated that communities using social learning on rural planning will achieve sustainable development. The construction of roads integrates geographic spaces and it is a requirement for competitiveness and development of the communities. In Mexico, the construction of roads and its improvement use existing ways originated by the transfer of cattle or the pathways drawn over past times, without considering any municipal or local development plan. One looked for to define a reference frame on the importance of the ways, first in Mexico, the state of San Luis Potosí and the behavior of investment in the municipality of Salinas de Hidalgo, San Luis Potosí and to outline an intervention method that allows to design criteria for the decision in the road construction using like planning tool the social learning. Any alternative of road selection it is desirable that should include local actors weighting their needs along with the technical criteria as well under an IPMA competence baseline schem

The role of market-implied severity modeling for credit VaR

En este trabajo proponemos el uso de mixturas de distribciones beta para modelizar la severidad impícita en el mercado. En nuestro análisis extraemos las tasas de recuperación de la cotización de los credit default swaps (CDS) en lugar de utilizar bonos que han impagado. La principal ventaja de obtener la estructura temporal implícita de tasas de recuperación de los CDS en lugar de utilizar los bonos impagados es que nos permite identificar tasas de recuperación para empresas con baja probabilidad de impago. Del análisis empírico se obtienen resultados que no permiten aceptar que una única distribución beta sea capaz de representar las tasas de recuperación implícitas mientras que la propuesta basada en mixturas de distribuciones beta si que es aceptada. Además, hay que destacar la importancia de utilizar esta metodología de ajuste por su importancia para una correcta estimación del Valor en Riesgo de crédito.In this paper we propose to use beta-component mixtures to model the market-implied severity. In our analysis we extract and identify recovery rates from credit default swaps instead of using defaulted bonds. The main advantage of extracting implied, endogenous and dynamic functions of recovery rates from credit default swaps versus using defaulted bonds is that it allows to identify recovery rates of low probability of default companies. We carry out an empirical analysis and our results show that a single beta distribution is rejected as a correct specification for implied recovery rates while a beta-component mixture is accepted. Futhermore, we highlight the importance of this modeling approach by focusing on its role for credit VaR

Green Minute: an example of environmental education in Portuguese speaking countries

[Resumo] O ‘Minuto Verde’ é uma rubrica ambiental que a Quercus produz e exibe, todos os dias úteis, durante o programa de informação Bom Dia Portugal, em episódios de 60 segundos, apresentando bons conselhos para um melhor ambiente. A rubrica tem transmissão na RTP 1, RTP Informação, RTP África e RTP Internacional. No quadro de um projeto apoiado pela Comunidade dos Países de Língua Portuguesa (CPLP), e pela Fundação Gulbenkian, entre 2012 e 2014, o ‘Minuto Verde’ dedicou um conjunto de mais de 70 episódios a quatro países africanos de língua portuguesa: Cabo Verde, Moçambique, São Tomé e Príncipe e Angola. Após a tomada de consciência de uma audiência significativa do programa nestes países, através da RTP África e RTP Internacional, a Quercus considerou a realização dos programas seria um investimento relevante a prosseguir em termos de educação ambiental, aproveitando a oportunidade para sensibilização das populações dos países em causa e mostrando a boas práticas desses países aos portugueses e também ao resto do mundo.[Abstract] The ‘Green Minute’ is an environmental TV show directed by Quercus and displayed every working day during the information program “Good Morning Portugal”, in episodes of 60 seconds, presenting good advices for a better environment. The show is broadcasted on RTP 1, RTP information, RTP Africa, and RTP International. Under a project supported by the Community of Portuguese Speaking Countries (CPLP), and the Gulbenkian Foundation, between 2012 and 2014, the ‘Green Minute’ dedicated a set of more than 70 episodes to four African Portuguese-speaking countries: Cape Verde, Mozambique, Sao Tome and Principe and Angola. After becoming aware of a significant audience of the program in these countries by RTP Africa and RTP Internacional, Quercus considered that filming episodes in these countries would be a significant investiment to continue in terms of environmental education, taking the opportunity to raise awareness of the populations of the countries concerned and also showing good practices of these countries to the Portuguese community and also the rest of the world

Los signos de puntuación en español: cuestiones de uso y errores frecuentes

The current paper aims to analyze how first year university students ofthe Spanish Language and Literature Degree use punctuation marks.For this purpose, a sample of 128 interventions was collected. Thediscursive frame where participations took place was the academicvirtual forum; particularly, two thematic forums were provided.Results show that comma and full stop are the most usual punctuationmarks; it is also significant the high frequency with which Englishinverted commas appear in the written texts, as well as the incorrectand widespread use of dashes with explanatory function.    El objetivo de esta investigación es analizar cómo los estudiantesuniversitarios de primer año del Grado en Lengua y LiteraturaEspañolas utilizan los signos de puntuación. Con este propósito, serecogió una muestra de 128 intervenciones. El marco discursivo enel que las participaciones se llevaron a cabo fue el foro académicovirtual; en particular, se proveyeron dos foros temáticos. Losresultados señalan que la coma y el punto son los signos de puntuaciónmás empleados; también es significativa la alta frecuencia con que lasdobles comillas inglesas aparecen en los textos escritos, así como eluso incorrecto y generalizado de los guiones en función aclaratoria.  

Dipteran chromosomes: a simple method for obtaining high quality chromosomal preparations

For cytogenetic studies it is necessary to develop an efficient method of chromosome preparation with wellpreserved and dispersed chromosomes and little or no cell-wall debris. In this study, we describe a method for obtaining high quality chromosomal preparations of dipteran cells. This procedure combines drop method and air-dry technique and produces a cell suspension with separated and mixed cells. Suspended mitotic cells were then dropped onto a glass slide in order to distribute the cytoplasm and spread the chromosomes. We compare and evaluate different chromosome preparation methods to develop a more reliable procedure for the resolution of chromosome characteristics and chromosome bandings in blow fly mitotic chromosomes. The combined drop and air-dry technique described here is convenient for identification of sex chromosomes. Using this protocol, acceptable high-quality chromosomal spreads with flattened cells and no cell debris, and without damage and/or loss of chromosomes were obtained.Fil: Chirino, Monica Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; ArgentinaFil: Rossi, Luis Francisco. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bressa, Maria Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Ecología, Genética y Evolución de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Ecología, Genética y Evolución de Buenos Aires; ArgentinaFil: Luaces, Juan Pablo. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Merani, Maria Susana. Universidad de Buenos Aires. Facultad de Medicina. Laboratorio de Biología Cromosómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentin

Ontología y didáctica: Una aproximación híbrida de base prudencial

Con el presente trabajo queremos considerar la relación de Ontología y Didáctica desde los presupuestos propios de la Hermenéutica Analógica. Desde ahí nos ocuparemos más concretamente de la ontología didáctica reflexionado, sobre todo, acerca de sus manifestaciones normativa-reguladora, epistemológica-crítica y práctico-metodológica. Para ello prestaremos atención a aquellos espacios donde Hermenéutica Analógica y Didáctica en nuestra propuesta de consideración deben confluir

Clumped or regular? the role of thinning pattern on pine growth and soil water content in dense Aleppo pine post-fire stands

The development of silvicultural practices that seek to promote structural heterogeneity is increasingly demanded. This work investigates the effect of thinning spatial pattern on the response to pre-commercial thinning of dense Aleppo pine post-fire stands. On three replicated experimental sites in SE Spain, we applied the following treatments: 600 trees/ha, regular thinning pattern (600R), with residual trees evenly spaced; 600 trees/ha, aggregated thinning pattern (600A), with residual pines arranged in clumps of ∽25 trees with a local within-clump density of 2500 trees/ha; and control treatment, with no thinning applied (> 20,000 trees/ha). We assessed treatment effects on pine growth, size-growth relationships, soil water content, and understory vegetation over the first three years after thinning application. Both regular and aggregated thinning pattern similarly increased pine radial growth. In general, dbh growth rates in response to thinning were faster for smaller trees than for larger trees. The growth rate of pine height was higher for 600R and control than for 600A, indicating a positive effect on height of both low and very high pine densities. We found a near-term positive effect of aggregated pattern on water availability at the stand level, mostly resulting from enhanced soil water content in the canopy gaps. For both thinning patterns, the recovery of understory vegetation was dominated by resprouter species. This study highlights the potential of aggregated thinning patterns to enhance the complexity and heterogeneity of the pine stands without compromising pine growth, which could be of great use to managing pine forests in Mediterranean areas.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This study was supported by the Spanish Ministry of Science and Innovation (http://www.ciencia.gob.es/) through the projects FEEDBACK (CGL2011-30515-C02-01) and DRYEX2 (CGL2017-89804-R)