Ethnographic Case Study of International Baccalaureate (IB) Seniors\u27 Self-Esteem and Perception of Labels in a Title I School

This ethnographic case study explored the effects labels had on senior students who were enrolled in the International Baccalaureate program at a Title I school. This qualitative study explored the culture, assumed identities, and self-perceptions of the students. More specifically, the researcher aimed to find the impact the two formal labels IB student and Title I student, as well as any informal labels associated with the two. The study had each participant complete one interview that asked them forty-two questions. Each interview lasted approximately forty-five minutes. Data was gathered from the interview responses, field observations made during the research, and the reflective journaling of the researcher. Recruitment and interviews were limited to a virtual format due to the global pandemic, COVID-19. Two research questions were explored in this study: How are senior IB students\u27 self-esteem influenced by perceived labels in a Title I School? To what extent do IB students express any dissociation or association with ascribed labels they perceive during their senior year? Findings suggested that students dissociated themselves and their school with the informal labels carried by Title I schools. Additionally, while the students associated themselves with the IB program in a manner that brought them pride, they ultimately viewed themselves as the same as non-IB students

Ground station control for telemetry and telecontrol of Cubesat

GranaSAT es un grupo aerospacial de la Universidad de Granada en el que se desarrollan diferentes actividades relacionadas con los ámbitos de la electrónica y la ingeniería aerospacial. Durante el desarrollo de actividades del grupo GranaSAT se comenzó el desarrollo de un Dashboard web, con el propósito de controlar una estación terrena (Ground Station) y todos sus componentes de forma remota, sin encontrarse físicamente en contacto con la estación. El objetivo del siguiente proyecto es integrar en la web un sistema que permita el telecontrol y telemetría de un Cubesat haciendo uso de una Ground Station. De este modo, el objetivo será implementar las funciones que permitan controlar remotamente la Ground Station, de modo que se pueda realizar el envío de comandos (telecontrol) y obtención de información (telemetría) hacia y desde un Cubesat, todo ello mediante el uso del protocolo AX25. Por otro lado, se realizarán además algunas mejoras en el Dashboard (nuevas funcionalidades, gestión de usuarios, mejoras de la interfaz, etc), todo de acuerdo a los requisitos de GranaSAT. Por tanto, el presente Trabajo Fin de Grado pretende emular un encargo profesional real siguiendo una metodología orientada a producto. Toda decisión en referencia al desarrollo será tomada en función de los requisitos del cliente (en este caso GranaSAT), teniendo en cuenta en todo momento los costes. A partir de los requisitos del cliente se realizará un proceso de análisis y comparativa de las diferentes soluciones propuestas, de manera similar a como se haría en un proyecto profesional final. A pesar de que el alumno posee la especialidad en Computación y Sistemas Inteligentes, se ha tratado de dar al proyecto un enfoque multidisciplinar, tratando tecnologías y aptitudes que el alumno ha desarrollado durante la titulación, así como nuevas que se han adquirido durante el desarrollo del proyecto.GranaSAT is a group consisted of students of the University of Granada, specifically, students who are willing to acquire new knowledge related to electronics and aerospace fields. Throughout all the activities carried out within the GranaSAT project, a web-based Dashboard was started, which aims to control a Ground Station and all its componentes remotely. The main purpose of this Project is integrating a web system that allows the remote control of the Ground Station, thereby, by making use of the Ground Station it will be possible to send commands (telecontrol) and receive telemetry from a Cubesat, all of this by using the AX25 protocol. Furthermore, some other functionalities and improvements will be developed in the Dashboard, everything according to GranaSAT requirements. The present Final Project tries to simulate a professional assignment following a productoriented philosophy. Every decision regarding the development will be made taking into account client requirements (GranaSAT in this case), taking into account economic costs as well. Thus, from the client requirements, an analysis will be performed in order to determine what are the suitable technologies and solutions, in a similar way as it would be done in a professional work. This Final Project is presented as “Trabajo Fin de Grado” within the Degree “Grado en Ingeniería Informática” at “Universidad de Granada”. Although the student has acquired his specialization in Computing and Intelligent Systems, the project is intended to have a multidisciplinary approach, involving not only technologies and aptitudes that have been already acquired by the student within the Degree, but also new ones that have been acquired during the Final Project development.GranaSAT - Grupo Electrónica Aeroespacial - Universidad de Granad

CATASTROAGRI -- Interactive data analysis and visualization application with a future projection for catastrophic agricultural insurance

CATASTROAGRI is an application developed to load, analyze and interactively visualize relevant data on catastrophic agricultural insurance. It also focuses on the analysis of an ARIMA (0,1,1) (0,1,1) model to identify and estimate patterns in the agricultural data of the Puno Region, it presents a decreasing trend because there is a significant relationship between successive values of the time series, We can also state that it is not stationary because the mean and variance do not remain constant over time and the series has periods, and it is observed that the cases are decreasing and increasing over the years, especially the amount to indemnify due to the behavior of the climate in the highlands. The results of the analysis show that agricultural insurance plays an important role in protecting farmers against losses caused by adverse climatic events. The importance of concentrating resources and indemnities on the most affected crops and in the provinces with the highest agricultural production is emphasized. The results of the users' evaluation showed a high level of satisfaction, as well as ease of use.Comment: In the process of sending magazine

Methodology to design a bottoming Rankine cycle, as a waste energy recovering system in vehicles. Study in a HDD engine

This article describes a methodology for the optimization of a bottoming cycle as a waste heat recovering system in vehicles. The methodology is applied to two particular cases in order to evaluate the preliminary energetic and technical feasibility of the implementation of a bottoming cycle in a heavy duty diesel (HDD) engine considering two different criteria. Initially, a study of the different waste heat sources of the engine is described. In this study, the power and exergy of each heat source is quantified, in order to evaluate which sources are suitable to be used in the bottoming cycle. The optimum working fluids to run the cycles are selected (water and R245fa). Then, the ideal Rankine cycle is optimized for the two different working fluids and different sets of heat sources (all the available heat sources and the sources with high exergy respectively) throughout the engine operating range, reaching a maximum improvement of 15% of the fuel consumption of the engine. Later, a study of the minimum temperature difference between the hot and cold flow of the heat exchangers is described. The improvements in fuel consumption and the size of the installed heat exchanger are related to this temperature difference. Finally, the non-ideal behavior of the machines (pump and expander) is analyzed, obtaining a maximum improvement of 10% in brake specific fuel consumption (bsfc).This work was partially funded by the "Programa de Formacion de Profesorado Universitario (FPU)", "Programa de Apoyo a la Investigacion y Desarrollo de la Universidad Politecnica de Valencia 2010", "Proyectos I + D para grupos de investigacion emergentes 2011" and "Programa de apoyo a la investigacion y desarrollo de la U.P.V (PAID-06-09)". The authors thank J. Dahlqvist for his help in improving the English grammar.Macian Martinez, V.; Serrano Cruz, JR.; Dolz Ruiz, V.; Sánchez Serrano, J. (2013). Methodology to design a bottoming Rankine cycle, as a waste energy recovering system in vehicles. Study in a HDD engine. Applied Energy. 104:758-771. https://doi.org/10.1016/j.apenergy.2012.11.075S75877110

A Tool to Perform Semantic and Imprecise Queries on non-scalar Data

Imprecision in queries has being managed using fuzzy logic techniques in the last few decades. Fuzzy logic techniques represent uncertainty formally and it allows to manage imprecision on scalar values in an easy and accurate way. The problem arises when users want to deal with semantics and nonscalar data at once. In this situation, fuzzy logic helps us to manage uncertainty, but it lacks of the flexibility that the semantic properties of words imply. Nowadays, ontologies have addressed this problem by the establishment of the semantic relationships among terms. Here, we present a software that allows us to combine fuzzy and semantic queries on non-scalar data. As a proof of concept, we will show some examples of queries performed on a real database about olive trees plantations

Model of the expansion process for R245fa in an Organic Rankine Cycle (ORC)

An Organic Rankine Cycle (ORC) is considered as one of the most environmental-friendly ways to convert different kinds of low temperature energies, i.e. solar, geothermal, biomass and thermal energy of exhaust gases into electrical energy. Two important facts about the ORC must be considered: An organic fluid is selected as the working fluid and a high expansion ratio is usually presented in the machinery due to thermodynamic and efficiency factors. In the past, the pre-design of turbomachinery has been based on the usage of ideal fluid laws, but the real gas effects have a significant influence in the ORC working condition, due to its proximity to the saturation vapor line. In this article, the Equations of State (EoS) (Ideal gas, Redlich-Kwong-Soave and Peng-Robinson) have been evaluated in a typical ORC expansion in order to observe the inaccuracies of the ideal gas model with different thermodynamic variables. Finally an isothermal process followed by an isochoric process is proposed to reproduce the thermodynamic process of the organic fluid expansion by means of simpler equations. In the last point of this paper, several examples of this expansion process have been calculated, in order to analyze the proposed methodologies. It has been concluded that in typical expansion process of ORC (2.5 MPa-0.1 MPa and 1.6MPa-0.1MPa), the PR and RKS equations show deviations between 6% and 8% in specific energy. These deviations are very low compared with the ideal gas equation whose deviations are above 100 %.This work was partially funded by the "Programa de Formacion de Profesorado Universitario (F.P.U)", "Programa de Apoyo a la Investigacion y Desarrollo de la Universidad Politecnica de Valencia 2010", "Proyectos I+D para grupos de investigacion emergentes 2011" and "Programa de apoyo a la investigacion y desarrollo de la U.P.V (PAID-06-09)". The authors thanks to R. Gatzweiler for his help to improve the English grammar.Lujan Martinez, JM.; Serrano Cruz, JR.; Dolz Ruiz, V.; Sánchez Serrano, J. (2012). Model of the expansion process for R245fa in an Organic Rankine Cycle (ORC). Applied Thermal Engineering. 40:248-257. https://doi.org/10.1016/j.applthermaleng.2012.02.020S2482574

La Universidad Laboral de Sevilla: arquitectura moderna en el paisaje

In this approach to Modern Architecture in Andalusia, a historical-artistic study of the old Labor University of Seville, currently Pablo de Olavide University, is carried out, with the aim of analyzing the traces that this architectural style has left in the landscape and how it is It has been part of the urban conception of the complex since its inception by the team of architects who were entrusted with the project of its design and construction. This work represents the most ambitious and complete work of all that have been attributed to the group of architects that constituted the OTAISA firm, and one of the most significant constructions in the national panorama of late rationalist architecture derived from or related to the Modern Movement.En esta aproximación a la Arquitectura Moderna en Andalucía se realiza un estudio histórico-artístico de la antigua Universidad Laboral de Sevilla, actual Universidad Pablo de Olavide, con el objetivo de analizar las huellas que este estilo arquitectónico ha dejado en el paisaje y cómo éste ha formado parte de la concepción urbanística del conjunto desde su concepción por parte del equipo de arquitectos a quienes se les encargó el proyecto de su diseño y construcción. Esta obra representa la obra más ambiciosa y completa de cuantas han sido atribuidas al grupo de arquitectos que constituyó la firma OTAISA, y una de las construcciones más significativas en el panorama nacional de la arquitectura racionalista tardía derivada o relacionada con el Movimiento Moderno

Valoración línea marítima del Caribe

Línea Marítima del Caribe es una empresa naviera dedicada al transporte marítimo de carga. Fue fundada a inicios de los años 90 en los Estados Unidos con capital colombiano y su propósito es ofrecer el servicio de transporte de carga contenerizada y carga suelta entre el sur del estado de la Florida en Estados Unidos y el norte de la Costa Atlántica colombiana. En la actualidad la empresa ofrece un servicio semanal entre Cartagena y Barranquilla, en Colombia, y Jacksonville y Port Everglades en la Florida, Estados Unidos. El servicio tiene 4 días de tránsito directo, sin recalar en puertos intermedios.Introducción. Objetivos. Marco teórico. Drivers del negocio. Resultados esperados. Due diligence. Valoración. Bibliografía. Anexos.Especialista en finanzas corporativasEspecializació

On the benefits of resource disaggregation for virtual data centre provisioning in optical data centres

Virtual Data Centre (VDC) allocation requires the provisioning of both computing and network resources. Their joint provisioning allows for an optimal utilization of the physical Data Centre (DC) infrastructure resources. However, traditional DCs can suffer from computing resource underutilization due to the rigid capacity configurations of the server units, resulting in high computing resource fragmentation across the DC servers. To overcome these limitations, the disaggregated DC paradigm has been recently introduced. Thanks to resource disaggregation, it is possible to allocate the exact amount of resources needed to provision a VDC instance. In this paper, we focus on the static planning of a shared optically interconnected disaggregated DC infrastructure to support a known set of VDC instances to be deployed on top. To this end, we provide optimal and sub-optimal techniques to determine the necessary capacity (both in terms of computing and network resources) required to support the expected set of VDC demands. Next, we quantitatively evaluate the benefits yielded by the disaggregated DC paradigm in front of traditional DC architectures, considering various VDC profiles and Data Centre Network (DCN) topologies.Peer ReviewedPostprint (author's final draft