Anàlisi de la sostenibilitat del sector de l'automoció a Catalunya

El sector de l’automoció és un dels sector industrials més importants a Catalunya. Per garantir que ho segueixi sent, és necessari un desenvolupament sostenible a nivell econòmic, social i ambiental. Per tal d’avançar cap a una indústria sostenible, cal analitzar els factors més rellevants per al sector, aplicar principis de sostenibilitat de forma transversal i millorar els informes per aplicar les mesures adequadament. Per dur a terme aquests objectius, es realitzarà un anàlisi de materialitat, un mètode que permet estudiar i seleccionar aquells factors de més rellevància per a les empreses. Aquestes empreses pertanyen al CIAC (Clúster de la Indústria de l’Automoció de Catalunya), que comptarà amb l’ajuda de la consultoria Accenture per a l’assessorament del projecte

Design and Implementation of a Direct/Indirect Hybrid Trust Model for Secure Authentication in a Mobile Ad Hoc Network

We investigated the problem of cryptographic key authentication in a mobile ad hoc network (MANET). Using the theory of digital trust, we propose an authentication scheme for MANETs that includes a hybrid trust model between the direct and indirect approaches. Our hybrid trust model supplies trust data to a decentralized web of trust in order to authenticate nodes in a MANET. We ran some simulations of our authentication scheme to verify its security and investigate potential trust threshold values. Also, we designed and implemented a proof-of-concept iOS application that implements our authentication scheme. Some future work includes investing several implications of the mobility aspect of MANETs on trust management, such as the maximum levels of trust concatenation

Índice de vulnerabilidad estructural de la institución educativa 20501 Santa Rosa del Distrito de Pativilca – 2021

El objetivo desarrollado satisfactoriamente determinó el índice de vulnerabilidad estructural de la infraestructura de la I.E. 20501 Santa Rosa en Pativilca, donde analiza a profundidad la variable a través de las siguientes dimensiones establecidas bajo los indicadores del estado estructural de vigas y columnas, estado de la unidad de mampostería, estado denso de mampostería, estado de fundaciones, estado de losas, estado de distribución, estado de elevación, relaciónmampostería y tabiquería, estado de cobertura no estructural, estado de cornisas, parapetos y otros, presencia de lesiones por edad. El estudio se desarrolló con un análisis metodológico practico y de descripción de la variable, analizándose desde un punto transversal no experimental a las estructuras existentes con un enfoque de características cuantitativas, siendo aplicado para ello al análisis de los 3 pabellones y el cero perímetro una ficha de observación en la que se induce a los parámetros de Benedetti y Petrini para su elaboración y aplicación. Los resultados obtenidos tras el análisis determinaron que los 3 pabellones tienen un registro de índice BAJO, MEDIO y MUY ALTO y el cerco perímetro registra un índice ALTO aplicando las escalas indicadas por Benedetti y Petrini para la medición de los índices de vulnerabilidad. Se le hace de recomendación a la I. E. 20501 Santa Rosa que debe realizar un análisis estructural digital con las estimaciones sísmicas actualizadas del Reglamento Nacional de Edificaciones a las edificaciones evaluadas para considerar un reforzamiento estructural de ser el caso o su demolición con la finalidad de garantizar la integridad física de los estudiantes y administrativos

Fomento agroforestal en la finca Nisbett de Cayon-Phillips

From the time of the English colonization, most of the arable and more accessible lands especially in the low and flat places were dedicated to the production of Saccharum officinarum L. (sugarcane). As a result, the farmers had to establish their small farm plots in the mountainous areas of the island and marginal places along the dry rivers. The objective of this work is the transformation of the productive systems of the farms in the Cayon-Phillips area by the development of agroforestry systems keeping in mind their geomorphologic characteristics. The development of the proposed agroforestry systems is carried out with the establishment of small parcels keeping in mind the changing morphological characteristics along the terrain using agroforestry techniques such as live fences, trees in rows, taungya method, etc. Iin each proposed variant it is recommended to use fruit trees such as Artocarpus altilis (Parkinson) Fosberg, Chrysobalanus icaco L., etc. and timber trees such as Inga laurina (Sw.) Willd and Guazuma ulmifolia Lam., etc. In the deforested properties a total of 11728 trees were proposed to be established on a surface of 10.5 hectares. To control the invasion of monkeys a live fence is designed using species such as Gliricidia sepium (Jacq.) Kunth., Euphorbia Haw, etc. The farm with the agroforestry development contributes 13600 kg/yr of Artocarpus altilis as non-timber forestry product for the local and export market.Desde la época de la colonización inglesa, la mayor parte de la tierra arable y más accesible especialmente en los lugares bajos y llanos, estaba dedicada a la producción de Saccharum officinarum L. (caña de azúcar), por esta razón los agricultores tienen que establecer sus fincas en las áreas montañosas de la isla y lugares marginales. El objetivo del trabajo es la transformación de los sistemas productivos de las fincas en la zona de Cayon-Phillips a través el fomento de sistemas agroforestales teniendo en cuenta sus características geomorfológicas. Para el fomento de los sistemas agroforestales se planteó el establecimiento de áreas para el cultivo de árboles, teniendo en cuenta las características geomorfológicas presentadas en el terreno, para lo cual se seleccionaron técnicas agroforestales tales como: cercas vivas, árboles en hileras, método de taunyga, etc. En cada una de las variantes a utilizar se recomiendan emplear árboles frutales como: Artocarpus altilis (Parkinson) Fosberg, Chrysobalanus icaco L., etc. y maderables como: Inga laurina (Sw.) Willd y Guazuma ulmifolia Lam., etc. Se propone establecer un total de 11728 árboles, en una superficie de 10,5 ha. Para controlar la invasión de monos se diseñó una cerca viva empleando las especies: Gliricidia sepium (Jacq.) Kunth y Euphorbia lactea Haw, etc. Con la incorporación en las fincas de Artocarpus altilis se aportan 13600kg/año como producto forestal no maderable para el mercado local y la exportación

Multivalued synchronization by Poincar coupling

"This work presents multivalued chaotic synchronization via coupling based on the Poincaré plane. The coupling is carried out by an underdamped signal, triggered every crossing event of the trajectory of the master system through a previously defined Poincaré plane. A master–slave system is explored, and the synchronization between the systems is detected via the auxiliary system approach and the maximum conditional Lyapunov exponent. Due to the response to specific conditions two phenomena may be obtained: univalued and multivalued synchronization. Since the Lyapunov exponent is not enough to detect these two phenomena, the distance between the pieces of trajectories of the slave and auxiliary systems with different initial conditions is also used as a tool for the detection of multivalued synchronization. Computer simulations using the benchmark chaotic systems of Lorenz and Rössler are used to exemplify the approach proposed.

Metabolic Basis of Creatine in Health and Disease: A Bioinformatics-Assisted Review

Creatine (Cr) is a ubiquitous molecule that is synthesized mainly in the liver, kidneys, and pancreas. Most of the Cr pool is found in tissues with high-energy demands. Cr enters target cells through a specific symporter called Na+/Cl--dependent Cr transporter (CRT). Once within cells, creatine kinase (CK) catalyzes the reversible transphosphorylation reaction between [Mg2+:ATP4-]2- and Cr to produce phosphocreatine (PCr) and [Mg2+:ADP3-]-. We aimed to perform a comprehensive and bioinformatics-assisted review of the most recent research findings regarding Cr metabolism. Specifically, several public databases, repositories, and bioinformatics tools were utilized for this endeavor. Topics of biological complexity ranging from structural biology to cellular dynamics were addressed herein. In this sense, we sought to address certain pre-specified questions including: (i) What happens when creatine is transported into cells? (ii) How is the CK/PCr system involved in cellular bioenergetics? (iii) How is the CK/PCr system compartmentalized throughout the cell? (iv) What is the role of creatine amongst different tissues? and (v) What is the basis of creatine transport? Under the cellular allostasis paradigm, the CK/PCr system is physiologically essential for life (cell survival, growth, proliferation, differentiation, and migration/motility) by providing an evolutionary advantage for rapid, local, and temporal support of energy- and mechanical-dependent processes. Thus, we suggest the CK/PCr system acts as a dynamic biosensor based on chemo-mechanical energy transduction, which might explain why dysregulation in Cr metabolism contributes to a wide range of diseases besides the mitigating effect that Cr supplementation may have in some of these disease states

A Bioinformatics-Assisted Review on Iron Metabolism and Immune System to Identify Potential Biomarkers of Exercise Stress-Induced Immunosuppression

The immune function is closely related to iron (Fe) homeostasis and allostasis. The aim of this bioinformatics-assisted review was twofold; (i) to update the current knowledge of Fe metabolism and its relationship to the immune system, and (ii) to perform a prediction analysis of regulatory network hubs that might serve as potential biomarkers during stress-induced immunosuppression. Several literature and bioinformatics databases/repositories were utilized to review Fe metabolism and complement the molecular description of prioritized proteins. The Search Tool for the Retrieval of Interacting Genes (STRING) was used to build a protein-protein interactions network for subsequent network topology analysis. Importantly, Fe is a sensitive double-edged sword where two extremes of its nutritional status may have harmful effects on innate and adaptive immunity. We identified clearly connected important hubs that belong to two clusters: (i) presentation of peptide antigens to the immune system with the involvement of redox reactions of Fe, heme, and Fe trafficking/transport; and (ii) ubiquitination, endocytosis, and degradation processes of proteins related to Fe metabolism in immune cells (e.g., macrophages). The identified potential biomarkers were in agreement with the current experimental evidence, are included in several immunological/biomarkers databases, and/or are emerging genetic markers for different stressful conditions. Although further validation is warranted, this hybrid method (human-machine collaboration) to extract meaningful biological applications using available data in literature and bioinformatics tools should be highlighted.The ‘Bioinformatics-assisted Review’ is a project developed and supported by the Research Division at the Dynamical Business and Science Society—DBSS International SAS. The APC was funded by the Exercise & Sport Nutrition Laboratory (ESNL) at Texas A&M University, the POWER LAB at University of Central Florida and the Sport Genomics Research Group at University of the Basque Country UPV/EHU

MILEPOST GCC: machine learning based research compiler

International audienceTuning hardwired compiler optimizations for rapidly evolving hardware makes porting an optimizing compiler for each new platform extremely challenging. Our radical approach is to develop a modular, extensible, self-optimizing compiler that automatically learns the best optimization heuristics based on the behavior of the platform. In this paper we describe MILEPOST GCC, a machine-learning-based compiler that automatically adjusts its optimization heuristics to improve the execution time, code size, or compilation time of specific programs on different architectures. Our preliminary experimental results show that it is possible to considerably reduce execution time of the MiBench benchmark suite on a range of platforms entirely automatically