Taller de habilidades de comunicación asertiva para líderes

Este trabajo presenta la intervención y el análisis de las experiencias de un grupo de 11 personas que tienen responsabilidades de supervisión de personal y/o de procesos, dentro de una empresa manufacturera de transformadores de distribución de energía eléctrica. La intervención estuvo orientada a que los participantes, a través de la facilitación del enfoque centrado en la persona, desarrollaran las habilidades de comunicación asertiva lo que les permitiera establecer un liderazgo efectivo dentro de la organización. La metodología utilizada para el análisis de las experiencias fue el análisis del discurso donde se buscó lograr entender qué dicen las personas más allá de las palabras que expresan. La recopilación de la información se realizó a través de grabaciones de audio de las sesiones del taller, entrevistas a los participantes y las bitácoras del facilitador. Entre los resultados más importantes está el autoconocimiento adquirido de los participantes respecto a su asertividad; cómo a través una comunicación asertiva, atenta y empática lograron mejores relaciones con sus familias, amigos y compañeros de trabajo, sentirse más satisfechos y seguros consigo mismos, y cómo esta manera de comunicarse logra resultados más efectivos en el plano personal y laboral

Coherent charge transport through molecular wires: influence of strong Coulomb repulsion

We derive a master equation for the electron transport through molecular wires in the limit of strong Coulomb repulsion. This approach is applied to two typical situations: First, we study transport through an open conduction channel for which we find that the current exhibits an ohmic-like behaviour. Second, we explore the transport properties of a bridged molecular wire, where the current decays exponentially as a function of the wire length. For both situations, we discuss the differences to the case of non-interacting electrons.Comment: 15 pages, 4 figures, elsart style, accepted at Chem Phy

Selection efficiency in Brachiaria hybrids using a posteriori blocking.

This paper compares the efficiency of Brachiaria hybrid clone selection by either traditional analysis or a posteriori blocking, to adequately consider the effect oflower competition in the border rows ofthe experimental plots (border effect). Results demonstrated that a posteriori blocking improved selection and the reliability ofthe genotypic evaluation. Of the ten best clones. four did not coincide in the two approaches. The ranking was altered as well, which demonstrated that the indication of the five best clones. selected to proceed to pasture trials based on the traditional evaluation, was misleading. This paper confirms the usefulness of a posteriori blocking. Furthermore, the results revealed lhe need to impose more effective competition on plants in the border rows to avoid erroneous selection when conducting evaluations for agronomic performance in Brachiaria trials

Core-collapse and Type Ia supernovae with the SKA

Core-collapse SNe (CCSNe): Systematic searches of radio emission from CCSNe are still lacking, and only targeted searches of radio emission from just some of the optically discovered CCSNe in the local universe have been carried out. Optical searches miss a significant fraction of CCSNe due to dust obscuration; CCSN radio searches are thus more promising for yielding the complete, unobscured star-formation rates in the local universe. The SKA yields the possibility to piggyback for free in this area of research by carrying out commensal, wide-field, blind transient survey observations. SKA1-SUR should be able to discover several hundreds of CCSNe in just one year, compared to about a dozen CCSNe that the VLASS would be able to detect in one year, at most. SKA, with an expected sensitivity ten times that of SKA1, is expected to detect CCSNe in the local Universe by the thousands. Therefore, commensal SKA observations could easily result in an essentially complete census of all CCSNe in the local universe, thus yielding an accurate determination of the volumetric CCSN rate. Type Ia SNe: We advocate for the use of the SKA to search for the putative prompt (~first few days after the explosion) radio emission of any nearby type Ia SN, via target-of-opportunity observations. The huge improvement in sensitivity of the SKA with respect to its predecessors will allow to unambiguously discern which progenitor scenario (single-degenerate vs. double-degenerate) applies to them.Comment: Proceedings of Science: Advancing Astrophysics with the Square Kilometre Array. Accepted version, including comments by the refere

Avaliação de híbridos de Brachiaria decumbens quanto à resistência à cigarrinha-das-pastagens Deois flavopicta.

Estudos de resistência de gramíneas forrageiras às cigarrinhas-das-pastagens têm gerado resultados decisivos para o lançamento de cultivares que se apresentem resistentes a essas pragas, o que até o momento se caracteriza como melhor método de controle das mesmas. Objetivou-se com este trabalho avaliar 38 híbridos intraespecíficos de Brachiaria decumbens (R12, R71, R81, R120, R158, R161, R165, R167, R168, R169, R176, R178, R179, R181, R183, R184, R188, R189, R193, S3, T44, T54, T66, T68, T86, T87, T89, X2, X30, X61, X72, X78, X99, X118, X121, X122, Y22, Y23) pelo método proposto pelo Centro Internacional de Agricultura Tropical (CIAT)

Resistência de híbridos intraespecíficos de Brachiaria decumbens à cigarrinha-das-pastagens Deois flavopicta.

As cigarrinhas-das-pastagens, principais pragas de pastagens, têm sido controladas essencialmente pelo uso de cultivares resistentes, método viável tanto no aspecto econômico como ambiental. No presente trabalho avaliaramse 27 híbridos intraespecíficos de Brachiaria decumbens (R4, R26, R39, R97, R126, R130, R163, R171, R175, R187, R192, S28, S47, S48, T35, T45, X6, X48, X113, X115, X116, X117, X119, X123, Y21, Z8, Z9) quanto aos parâmetros sobrevivência ninfal e dano causado pela ninfa à planta. Utilizou-se o método de avaliação proposto pelo Centro Internacional de Agricultura Tropical (CIAT)

BlackCAT: A catalogue of stellar-mass black holes in X-ray transients

During the last ~50 years, the population of black hole candidates in X-ray binaries has increased considerably with 59 Galactic objects detected in transient low-mass X-ray binaries, plus a few in persistent systems (including ~5 extragalactic binaries). We collect near-infrared, optical and X-ray information spread over hundreds of references in order to study the population of black holes in X-ray transients as a whole. We present the most updated catalogue of black hole transients, which contains X-ray, optical and near-infrared observations together with their astrometric and dynamical properties. It provides new useful information in both statistical and observational parameters providing a thorough and complete overview of the black hole population in the Milky Way. Analysing the distances and spatial distribution of the observed systems, we estimate a total population of ~1300 Galactic black hole transients. This means that we have already discovered less than ~5% of the total Galactic distribution. The complete version of this catalogue will be continuously updated online and in the Virtual Observatory, including finding charts and data in other wavelengths.Comment: http://www.astro.puc.cl/BlackCAT - Accepted for publication in Astronomy & Astrophysics. 20 pages, 8 figures, 5 Table

The star forming region Monoceros R2 as a gamma-ray source

After the release of the gamma-ray source catalog produced by the Fermi satellite during its first two years of operation, a significant fraction of sources still remain unassociated at lower energies. In addition to well-known high-energy emitters (pulsars, blazars, supernova remnants, etc.), theoretical expectations predict new classes of gamma-ray sources. In particular, gamma-ray emission could be associated with some of the early phases of stellar evolution, but this interesting possibility is still poorly understood. Aims: The aim of this paper is to assess the possibility of the Fermi gamma-ray source 2FGL J0607.5-0618c being associated with the massive star forming region Monoceros R2. Methods: A multi-wavelength analysis of the Monoceros R2 region is carried out using archival data at radio, infrared, X-ray, and gamma-ray wavelengths. The resulting observational properties are used to estimate the physical parameters needed to test the different physical scenarios. Results: We confirm the 2FGL J0607.5-0618c detection with improved confidence over the Fermi two-year catalog. We find that a combined effect of the multiple young stellar objects in Monoceros R2 is a viable picture for the nature of the source

Glucagon-like peptide 1 receptor activation regulates cocaine actions and dopamine homeostasis in the lateral septum by decreasing arachidonic acid levels

Agonism of the glucagon-like peptide 1 (GLP-1) receptor (GLP-1R) has been effective at treating aspects of addictive behavior for a number of abused substances, including cocaine. However, the molecular mechanisms and brain circuits underlying the therapeutic effects of GLP-1R signaling on cocaine actions remain elusive. Recent evidence has revealed that endogenous signaling at the GLP-1R within the forebrain lateral septum (LS) acts to reduce cocaine-induced locomotion and cocaine conditioned place preference, both considered dopamine (DA)-associated behaviors. DA terminals project from the ventral tegmental area to the LS and express the DA transporter (DAT). Cocaine acts by altering DA bioavailability by targeting the DAT. Therefore, GLP-1R signaling might exert effects on DAT to account for its regulation of cocaine-induced behaviors. We show that the GLP-1R is highly expressed within the LS. GLP-1, in LS slices, significantly enhances DAT surface expression and DAT function. Exenatide (Ex-4), a long-lasting synthetic analog of GLP-1 abolished cocaine-induced elevation of DA. Interestingly, acute administration of Ex-4 reduces septal expression of the retrograde messenger 2-arachidonylglycerol (2-AG), as well as a product of its presynaptic degradation, arachidonic acid (AA). Notably, AA reduces septal DAT function pointing to AA as a novel regulator of central DA homeostasis. We further show that AA oxidation product γ-ketoaldehyde (γ-KA) forms adducts with the DAT and reduces DAT plasma membrane expression and function. These results support a mechanism in which postsynaptic septal GLP-1R activation regulates 2-AG levels to alter presynaptic DA homeostasis and cocaine actions through AA