Caracterización de semillas blancas y negras de Salvia hispanica L. (Lamiaceae)

Caracterización de semillas blancas y negras de Salvia hispanica L. (Lamiaceae)Fil: Bueno, Mirian. Universidad Nacional de Rosario. Facultad de Ciencias Agrarias; Argentin

A review on slurry bioreactors for bioremediation of soils and sediments

The aim of this work is to present a critical review on slurry bioreactors (SB) and their application to bioremediation of soils and sediments polluted with recalcitrant and toxic compounds. The scope of the review encompasses the following subjects: (i) process fundamentals of SB and analysis of advantages and disadvantages; (ii) the most recent applications of SB to laboratory scale and commercial scale soil bioremediation, with a focus on pesticides, explosives, polynuclear aromatic hydrocarbons, and chlorinated organic pollutants; (iii) trends on the use of surfactants to improve availability of contaminants and supplementation with degradable carbon sources to enhance cometabolism of pollutants; (iv) recent findings on the utilization of electron acceptors other than oxygen; (v) bioaugmentation and advances made on characterization of microbial communities of SB; (vi) developments on ecotoxicity assays aimed at evaluating bioremediation efficiency of the process

Uprolides N, O and P from the Panamanian Octocoral Eunicea succinea.

Three new diterpenes, uprolide N (1), uprolide O (2), uprolide P (3) and a known one, dolabellane (4), were isolated from the CH₂Cl₂-MeOH extract of the gorgonian octocoral Eunicea succinea, collected from Bocas del Toro, on the Caribbean coast of Panama. Their structures were determined using spectroscopic analyses, including 1D and 2D NMR and high-resolution mass spectrometry (HRMS) together with molecular modeling studies. Compounds 1-3 displayed anti-inflammatory properties by inhibiting production of Tumor Necrosis Factor (TNF) and Interleukin (IL)-6 induced by lipopolysaccharide (LPS) in murine macrophages

Modelos de control quimioterapéutico contra Fasciola hepatica en ganado bovino en pastoreo en clima cálido húmedo

2 páginas.-- Trabajo presentado al XIII Congreso Latinoamericano de Parasitología ( La Habana, Cuba, 11 al 23 de Noviembre, 1997).La fasciolosis en bovinos en el estado de Veracruz, México, tiene una alta prevalencia, por lo que se considera una necesidad generar información sobre modelos de control. Con el objetivo de evaluar 3 modelos de tratamientos fasciolicidas aplicados de manera estratégica en base a las condiciones climatológicas locales, se emplearon 3 grupos de 23 vacunos cada uno, hembras cruces de cebú con suizo pardo, homogéneos en las cantidades de huevos de 5 g de heces. Se utilizó el triclabendazol a dosis de 12 mg/kg. El grupo 1 fue tratado en enero, el 2 en enero y junio, y el 3 en enero, junio y octubre. Cada 45 días se les practicaron exámenes coprológicos cuantitativos (hpg) por la técnica de sedimentación durante un año. Los bovinos se encontraban localizados en una finca situada en el municipio de Nautla, Estado de Veracruz. Se encontró en el grupo 1 la prevalencia al inicio de 100%, en los siguientes 5 muestreos fue de 21.7 a 91.3 % y en el resto de 100%, mientras que el x de hpg al inicio fue de 13.23.14 se redujo en 5 muestreos de 0.560.26 a 12.12.02 mientras que en 4 se incrementó de 14.63.87 a 21.1 3.06 con diferencia (P0.01) entre el primer muestreo y los siguientes. En el grupo 2 la prevalencia al inicio fue de 100%, posteriormente se redujo en 8 muestreos de 8.6% a 95.6%, mientras que el último muestreo fue de 100%, el x de hpg al inicio fue de 15.043.62 se redujo en 8 muestreos de 0.170.13 a 14.102.13 mientras que el penúltimo muestreo fue de 15.733.07 con diferencia entre el primer muestreo hasta el 8, pero sin diferencia con el 9 y el 10 (P0.01). En el grupo 3 la prevalencia al inicio fue de 100% en los siguientes muestreos se redujo de 15.07% a 94.4%, mientras el x de hpg al inicio fue de 13.132.24 disminuyó en los subsecuentes muestreos 0.270.13 a 11.554.56 se encontró que hubo diferencia entre el primer muestreo con todos los subsecuentes (P0.01). Al comparar entre grupos mediante la prueba de Kruskall-Wallis se encontró que hay diferencia (P0.01) del muestreo 8 al 10.Peer reviewe

On the justification of intergroup violence: The roles of procedural justice, police legitimacy and group identity in attitudes towards violence among indigenous people

Objective Why do people justify intergroup violence? In this paper we examine attitudes towards violence perpetrated by indigenous activists to claim for rights and violence by pólice officers against indigenous people. We assess the role that perceived pólice legitimacy, procedurally just policing towards the indigenous minority group and group identity play in the justification of intergroup violence. Method We present findings from two surveys (Study 1, n=1493, Study 2, n=198) and an experiment (Study 3, n=76) conducted among indigenous people in Chile. Studies 1 and 2 measure perceptions of police procedural justice towards indigenous people. Study 3 manipulates the fairness with which police officers treat indigenous people. Effects of procedural justice on police legitimacy (Studies 2 and 3) and attitudes towards violence for social change and social control (Studies 1-3) are analyzed. Result Higher perceptions of procedurally just policing towards indigenous people predict more support for police violence and less support for violence perpetrated by indigenous activists. These effects are mediated by perceived police legitimacy and moderated by identification with the minority group. Among people who identify strongly with their indigenous group, perceiving high procedural justice predicts greater police legitimacy, greater support for police violence, and lesser support for violence perpetrated by indigenous activists

Espundia equina etiología y patogénesis de una ficomicosis. :etiología y patogénesis de una ficomicosis.

Equinos-Caballo - caballo

Sex-Specific Effects of Early Life Stress on Brain Mitochondrial Function, Monoamine Levels and Neuroinflammation

Sex differences have been reported in the susceptibility to early life stress and its neurobiological correlates in humans and experimental animals. However, most of the current research with animal models of early stress has been performed mainly in males. In the present study, prolonged maternal separation (MS) paradigm was applied as an animal model to resemble the effects of adverse early experiences in male and female rats. Regional brain mitochondrial function, monoaminergic activity, and neuroinflammation were evaluated as adults. Mitochondrial energy metabolism was greatly decreased in MS females as compared with MS males in the prefrontal cortex, dorsal hippocampus, and the nucleus accumbens shell. In addition, MS males had lower serotonin levels and increased serotonin turnover in the prefrontal cortex and the hippocampus. However, MS females showed increased dopamine turnover in the prefrontal cortex and increased norepinephrine turnover in the striatum, but decreased dopamine turnover in the hippocampus. Sex differences were also found for pro-inflammatory cytokine levels, with increased levels of TNF-α and IL-6 in the prefrontal cortex and hippocampus of MS males, and increased IL-6 levels in the striatum of MS females. These results evidence the complex sex- and brain region-specific long-term consequences of early life stress.This work was supported by grants PSI 2017-83038-P to HGP and NC, PSI 2017-90806-REDT to JLA, PSI 2017-83893-R to JLA (Ministry of Economy and Competitiveness, Spain)

Study of Vibration Effects on Communication Filters in Substrate Integrated Technologies

(c) 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.[EN] The growing need of space communication systems forces the industry to innovate in order to provide more robust, economical and flexible solutions. The new substrate integrated technologies enable the development of on-board communications devices with less weight and volume than the traditional waveguide-based ones. However, it is necessary to analyse the performance of these devices in the particular working conditions of satellite communications. This work studies the integrity of the electrical response of advanced communication filters under mechanical stress conditions. Four realisations of a Ku-band microwave filter in different substrate integrated technologies were developed and tested. Two mechanical vibration tests were performed: sinusoidal sweep and random vibration. These tests emulate the transport and launching conditions of the satellite payload. Furthermore, the mechanical natural frequency of the filters and its variation after being exposed to the tests have been measured to evaluate the devices integrity. For all the filters, this frequency variation is lower than 5 %, the standard threshold. This proves that the developed filters can survive the launching conditions of satellite payload, thus qualifying the technology for spatial applications.This work was supported in part by the Generalitat Valenciana Research Project (PROMETEO/2019/120); in part by the Agencia Estatal de Investigacion, Spain, under the Fellowship for Training Ph.D.s (BES-2017-079728); in part by the Ministerio de Ciencia e Innovacion (MICIN), Spanish Government, under Research and Development Project PID2019-103982RB-C41 (funded by MICIN/AEI/10.13039/501100011033); and in part by the Conferencia de Rectores de las Universidades Espanolas (CRUE)-Universitat Politecnica de Valencia (by paying the open access charge).Merello, JM.; Bachiller Martin, MC.; Nova-Giménez, V.; Esteban González, H.; Belenguer, Á. (2022). Study of Vibration Effects on Communication Filters in Substrate Integrated Technologies. IEEE Access. 10:50418-50426. https://doi.org/10.1109/ACCESS.2022.317326450418504261

Improving the accuracy while preserving the interpretability of fuzzy function approximators by means of multi-objective evolutionary algorithms

AbstractThe identification of a model is one of the key issues in the field of fuzzy system modeling and function approximation theory. An important characteristic that distinguishes fuzzy systems from other techniques in this area is their transparency and interpretability. Especially in the construction of a fuzzy system from a set of given training examples, little attention has been paid to the analysis of the trade-off between complexity and accuracy maintaining the interpretability of the final fuzzy system. In this paper a multi-objective evolutionary approach is proposed to determine a Pareto-optimum set of fuzzy systems with different compromises between their accuracy and complexity. In particular, two fundamental and competing objectives concerning fuzzy system modeling are addressed: fuzzy rule parameter optimization and the identification of system structure (i.e. the number of membership functions and fuzzy rules), taking always in mind the transparency of the obtained system. Another key aspect of the algorithm presented in this work is the use of some new expert evolutionary operators, specifically designed for the problem of fuzzy function approximation, that try to avoid the generation of worse solutions in order to accelerate the convergence of the algorithm

Phosphomannosylation and the functional analysis of the extended Candida albicans MNN4-like gene family

We thank Luz A. López-Ramírez (Universidad de Guanajuato) for technical assistance. This work was supported by Consejo Nacional de Ciencia y Tecnología (ref. CB2011/166860; PDCPN2014-247109, and FC 2015-02-834), Universidad de Guanajuato (ref. 000025/11; 0087/13; ref. 1025/2016; Convocatoria Institucional para Fortalecer la Excelencia Académica 2015; CIFOREA 89/2016), Programa de Mejoramiento de Profesorado (ref. UGTO-PTC-261), and Red Temática Glicociencia en Salud (CONACYT-México). NG acknowledges the Wellcome Trust (086827, 075470, 101873, and 200208) and MRC Centre for Medical Mycology for funding (N006364/1). KJ was supported by a research visitor grant to Aberdeen from China Scholarship Council (CSC No. 201406055024). The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fmicb.2017.02156/full#supplementary-materialPeer reviewedPublisher PD