LOD-LAM erresuman… Linked Open Data eta Ondare Digitala

Book chaper about Linked Open Data in the kingdom of Libraries, Archives Museums and Galerie

Study on the use of metadata for digital learning objects in university institutional repositories (MODERI)

Metadata is a core issue for the creation of repositories. Different institutional repositories have chosen and use different metadata models, elements and values for describing the range of digital objects they store. Thus, this paper analyzes the current use of metadata describing those Learning Objects that some open higher educational institutions' repositories include in their collections. The goal of this work is to identify and analyze the different metadata models being used to describe educational features of those specific digital educational objects (such as audience, type of educational object, learning objectives, etc.). Also discussed is the concept and typology of Learning Objects (LO) through their use in University Repositories. We will also examine the usefulness of specifically describing those learning objects, setting them apart from other kind of documents included in the repository, mainly scholarly publications and research results of the Higher Education institution.En prens

Linking and opening vocabularies LHT special issue: Editorial

Purpose This editorial underscores the importance of linked data and linked open data (LD/LOD) in contemporary librarianship and information science. It aims to present the motivation for this special issue of Library High Tech (LHT), specifically the theme of linking and opening vocabularies (LOV) as a component of the LOD landscape. The editorial also seeks to describe the content of the papers and their contributions in the areas of current practice, trends, and R&D (research and development). Design/methodology/approach The editorial is organized into four main sections: Introductory aspects about linking open data; the context and inspiration for this special issue of LHT; a description of the accepted papers highlighting their contribution for LOV; and a conclusion. Findings The editorial presents several reflective insights for advancing LOD and LOV practices that may lead toward a more integrated semantic web. Originality/value The editorial presents a synthesis of the three editors' views on approaching the subject of linking open vocabularies. The framework for the editorial is reflected in the original call for papers that supported this special issue

Analysis of lifestyle and bone mineralization in a population of Spanish young adults

Objective: To analyze the environmental factors (nutritional status, levels of physical activity and nutritional habits) and their possible association with bone mass in a population of young adults. Methods: The study population consisted of 200 subjects (117 women and 83 men) aged between 18 and 25 years (mean age 20.4 years ±2.2 years). Body composition parameters were measured by an electronic balance (TANITA BC-418MA), nutritional habits were estimated by 72-h dietary recall, level of physical activity was assessed by the International Physical Activity Questionnaire (IPAQ) and bone mass was measured by ultrasonography at the calcaneus. Results: There were significant differences in bone mass values according to gender (p= 0.013). Despite the fact that 70% of the subjects had a body mass index (BMI) within the normal range, 20% had overweight or obesity. 49% of the individuals had a moderate level of physical activity, although women had lower levels of physical activity than men (17.9% vs 8.4%). Most diets among young adults were hyperprotic, hyperlipidic and low-carbohydrates, with low-calcium and fiber intakes and high-phosphorus. Analysis of bone mass according to BMI showed higher values as the weight category rises, with significant differences in women. Higher values of bone mass were shown as the level of physical activity was higher, showing significant differences in males. Conclusion: Our results show that BMI and level of physical activity are significantly associated with bone health in a population of young adults, suggesting the relevance of promoting healthy lifestyles as a strategy for the early prevention of osteoporosis

Dime de dónde vienes y te diré qué recibes. Un abordaje multidimensional de la movilidad social. CABA 2012-2013

Production of INCASI Project H2020-MSCA-RISE-2015 GA 69100

Study on the use of metadata for digital learning objects in university institutional repositories

Falta el Póster presentado en el evento. Este documento es el Paper derivado del Poster publicado en el Libro de Actas del Congreso.This study analyzes the present use of metadata describing the educational resources that some universities include in the collections of their institutional repositories (IRs). The goal is to test the viability of implementing value-added services by offering educational resources from IRs in addition to those available from learning object repositories (LOR), based on their metadata. We identify and analyze the different metadata models in a sample of university IRs, concentrating on: the use of one or multiple metadata schemas coexisting in the repository; the use of educational metadata schemas and application profiles such as IEEE LOM or DC-Ed; the possible extensions (qualifiers or any refinements) to DC-Simple; the specific metadata elements used to describe educational features (such as audience, type of educational material, learning objectives, etc.) and the values of the metadata elements, especially the use of specific vocabularies for elements of educational interest

Approaches to imputation of income from the perspective of class analysis. A proposal using factor analysis techniques

RC55 Social Indicators Imputation and Social Indicators: The Use of Factor Analysis for Imputing Missing DataBackground of INCASI Project H2020-MSCA-RISE-2015 GA 691004. WP1: CompilationThe purpose of the paper is to analyze the implications of using different methods to imput missing income data from the perspective of structure and class analysis. In particular, the interest is to describe and apply different methods and to examine the similarities and differences between them. In this way, it is expected to contribute to the problem of the lack of response in questions about income in household survey

Cryogenic performance of a 3-14 GHz bipolar SiGe low-noise amplifier

The performance of silicon-germanium (SiGe) transistors under cryogenic operation is analysed. The design and characterization of a 3–14 GHz low-noise amplifier (LNA) using SiGe transistors at 300 K and at 13 K are presented. A three stage amplifier is implemented with bipolar transistors model BFU910F from NXP commercially available with a plastic package. The amplifier exhibits 36.8 dB average gain with average noise temperature of 103 K and 42 mW DC power consumption at 300 K ambient temperature. Whereas cooled down to 13 K ambient temperature, it provides 32.4 dB average gain, 11.4 K average noise temperature with a minimum of 7.2 K at 3.5 GHz and a DC power dissipation of 5.8 mW. The presented LNA demonstrates an outstanding performance at cryogenic temperature for a commercial plastic packaged transistor.The authors would like to thank the Spanish Ministry of Economy, Industry and Competitiveness for the financial support provided under the grant ESP2015-70646-C2-2-R

Amplificador monolítico de bajo ruido en banda Ka con tecnología GaAs mHEMT

This document presents the design and measurement results of a monolithic low noise amplifier for the 26–36 GHz band. The 3x1 mm2 chip has been designed using the D01MH process from OMMIC foundry (0.13μm mHEMT, GaInAs-InAlAs with 40% indium content) and a home-made transistor model. On-wafer measurements show a gain of S21 = 30.9 ± 1.9 dB with a mean noise figure of NF = 1.8 dB in the band of interest (minimun NF = 1.4 dB at 31 GHz). Input return loss is generally better than 10 dB while output return loss is better than 15 dB in the same band