186 research outputs found

    Valor educativo de los estudios sistemáticos de mapeo: una replicación de un estudio

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    The goal of this study is to validate the results of a prior study on the educational value of systematic mapping studies (SMS) and evaluate the possibility of generalizing those results to similar contexts. Since the inception of the Evidence Based Software Engineering (EBSE) paradigm in 2004, few studies have aimed at evaluating their impact in the academic field, and the educational values that SMS can offer to the students. In 2010, three renowned researchers presented an article on this subject at ICSE'10. The study made interesting contributions. We believe that, after 8 years, a replication of that study can be useful to assess the original findings and to guide future educational interventions. As a research method, we did a replication of the original multi-case holistic study. This replication confirms all but two of the results from the original work. The differences may be due to slight variations in the context. The experience of undertaking an SMS provided the students with both research skills and a broad understanding of a research area. We encourage other researchers to replicate this study, to gain further insights into the educational value of this method.El objetivo de este estudio es el de validar los resultados de un estudio anterior sobre el valor educativo de los estudios sistemáticos de mapeo (SMS), y evaluar la posibilidad de generalizar aquellos resultados a contextos similares. Desde la aparición del paradigma de Ingeniería del Software Basada en Evidencias (EBSE) en 2004, pocos estudios se han dirigido a evaluar su impacto en el ámbito académico, y el valor educativo que los SMS pueden ofrecer a los estudiantes. En 2010 tres reconocidos investigadores presentaron un artículo sobre éste asunto en ICSE’10. El estudio hizo interesantes contribuciones. Creemos que, después de 8 años, una replicación de ese estudio puede ser útil para comprobar los hallazgos originales y, para guiar futuras intervenciones educativas. Como método de investigación, hicimos una replicación del estudio holístico multi-caso original. Esta replicación confirma todos los resultados, menos dos, del estudio original. Las diferencias pueden deberse a pequeñas variaciones en el contexto. La experiencia de realizar un SMS proporcionó a los estudiantes tanto destrezas para la investigación como un amplio conocimiento de su área de investigación. Animamos a otros investigadores a replicar este estudio, para conseguir mayor información sobre el valor educativo de éste método.Facultad de Informátic

    Valor educativo de los estudios sistemáticos de mapeo: una replicación de un estudio

    Get PDF
    The goal of this study is to validate the results of a prior study on the educational value of systematic mapping studies (SMS) and evaluate the possibility of generalizing those results to similar contexts. Since the inception of the Evidence Based Software Engineering (EBSE) paradigm in 2004, few studies have aimed at evaluating their impact in the academic field, and the educational values that SMS can offer to the students. In 2010, three renowned researchers presented an article on this subject at ICSE'10. The study made interesting contributions. We believe that, after 8 years, a replication of that study can be useful to assess the original findings and to guide future educational interventions. As a research method, we did a replication of the original multi-case holistic study. This replication confirms all but two of the results from the original work. The differences may be due to slight variations in the context. The experience of undertaking an SMS provided the students with both research skills and a broad understanding of a research area. We encourage other researchers to replicate this study, to gain further insights into the educational value of this method.El objetivo de este estudio es el de validar los resultados de un estudio anterior sobre el valor educativo de los estudios sistemáticos de mapeo (SMS), y evaluar la posibilidad de generalizar aquellos resultados a contextos similares. Desde la aparición del paradigma de Ingeniería del Software Basada en Evidencias (EBSE) en 2004, pocos estudios se han dirigido a evaluar su impacto en el ámbito académico, y el valor educativo que los SMS pueden ofrecer a los estudiantes. En 2010 tres reconocidos investigadores presentaron un artículo sobre éste asunto en ICSE’10. El estudio hizo interesantes contribuciones. Creemos que, después de 8 años, una replicación de ese estudio puede ser útil para comprobar los hallazgos originales y, para guiar futuras intervenciones educativas. Como método de investigación, hicimos una replicación del estudio holístico multi-caso original. Esta replicación confirma todos los resultados, menos dos, del estudio original. Las diferencias pueden deberse a pequeñas variaciones en el contexto. La experiencia de realizar un SMS proporcionó a los estudiantes tanto destrezas para la investigación como un amplio conocimiento de su área de investigación. Animamos a otros investigadores a replicar este estudio, para conseguir mayor información sobre el valor educativo de éste método.Facultad de Informátic

    Clark County Department of Family Services, Parenting Project

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    The Clark County Parenting Project offers a series of free programs to help parents become more effective in raising their children. This program evaluation focuses on Teen Triple P, one of the six programs offered by Clark County, evaluating the effectiveness of the program to the community. The Parenting Project partnered with the University of Nevada, Las Vegas, School of Public Policy and Leadership to be a participant in a program evaluation. The evaluation will serve as a tool to determine the overall effectiveness in meeting program goals and objectives as well as determining strengths and weaknesses in program implementation

    Valor educativo de los estudios sistemáticos de mapeo: una replicación de un estudio

    Get PDF
    The goal of this study is to validate the results of a prior study on the educational value of systematic mapping studies (SMS) and evaluate the possibility of generalizing those results to similar contexts. Since the inception of the Evidence Based Software Engineering (EBSE) paradigm in 2004, few studies have aimed at evaluating their impact in the academic field, and the educational values that SMS can offer to the students. In 2010, three renowned researchers presented an article on this subject at ICSE'10. The study made interesting contributions. We believe that, after 8 years, a replication of that study can be useful to assess the original findings and to guide future educational interventions. As a research method, we did a replication of the original multi-case holistic study. This replication confirms all but two of the results from the original work. The differences may be due to slight variations in the context. The experience of undertaking an SMS provided the students with both research skills and a broad understanding of a research area. We encourage other researchers to replicate this study, to gain further insights into the educational value of this method.El objetivo de este estudio es el de validar los resultados de un estudio anterior sobre el valor educativo de los estudios sistemáticos de mapeo (SMS), y evaluar la posibilidad de generalizar aquellos resultados a contextos similares. Desde la aparición del paradigma de Ingeniería del Software Basada en Evidencias (EBSE) en 2004, pocos estudios se han dirigido a evaluar su impacto en el ámbito académico, y el valor educativo que los SMS pueden ofrecer a los estudiantes. En 2010 tres reconocidos investigadores presentaron un artículo sobre éste asunto en ICSE’10. El estudio hizo interesantes contribuciones. Creemos que, después de 8 años, una replicación de ese estudio puede ser útil para comprobar los hallazgos originales y, para guiar futuras intervenciones educativas. Como método de investigación, hicimos una replicación del estudio holístico multi-caso original. Esta replicación confirma todos los resultados, menos dos, del estudio original. Las diferencias pueden deberse a pequeñas variaciones en el contexto. La experiencia de realizar un SMS proporcionó a los estudiantes tanto destrezas para la investigación como un amplio conocimiento de su área de investigación. Animamos a otros investigadores a replicar este estudio, para conseguir mayor información sobre el valor educativo de éste método.Facultad de Informátic

    Genetic Continuity in the Franco-Cantabrian Region: New Clues from Autochthonous Mitogenomes

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    Background: The Late Glacial Maximum (LGM),,20 thousand years ago (kya), is thought to have forced the people inhabiting vast areas of northern and central Europe to retreat to southern regions characterized by milder climatic conditions. Archaeological records indicate that Franco-Cantabria might have been the major source for the re-peopling of Europe at the beginning of the Holocene (11.5 kya). However, genetic evidence is still scarce and has been the focus of an intense debate. Methods/Principal Findings: Based on a survey of more than 345,000 partial control region sequences and the analysis of 53 mitochondrial DNA (mtDNA) genomes, we identified an mtDNA lineage, HV4a1a, which most likely arose in the Franco-Cantabrian area about 5.4 kya and remained confined to northern Iberia. Conclusions/Significance: The HV4a1a lineage and several of its younger branches reveal for the first time genetic continuity in this region and long-term episodes of isolation. This, in turn, could at least in part explain the unique linguistic and cultural features of the Basque region

    Regeneración de campus para la creación de un laboratorio vivo de sostenibilidad ("living lab") en el Campus de Excelencia Internacional de Moncloa

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    La Universidad Politécnica de Madrid (UPM) a través de su Centro de Innovación en Tecnología para el Desarrollo Humano (itdUPM) está propiciando la generación de conciencia, conocimiento y soluciones innovadoras que contribuyen al cumplimiento de los Objetivos de Desarrollo Sostenible a través de un edificio que sirve como laboratorio de prueba para nuevas tecnologías verdes y como plataforma de ideación colaborativa y activación social

    Mosaic maternal ancestry in the Great Lakes region of East Africa

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    The Great Lakes lie within a region of East Africa with very high human genetic diversity, home of many ethno-linguistic groups usually assumed to be the product of a small number of major dispersals. However, our knowledge of these dispersals relies primarily on the inferences of historical, linguistics and oral traditions, with attempts to match up the archaeological evidence where possible. This is an obvious area to which archaeogenetics can contribute, yet Uganda, at the heart of these developments, has not been studied for mitochondrial DNA (mtDNA) variation. Here, we compare mtDNA lineages at this putative genetic crossroads across 409 representatives of the major language groups: Bantu speakers and Eastern and Western Nilotic speakers. We show that Uganda harbours one of the highest mtDNA diversities within and between linguistic groups, with the various groups significantly differentiated from each other. Despite an inferred linguistic origin in South Sudan, the data from the two Nilotic-speaking groups point to a much more complex history, involving not only possible dispersals from Sudan and the Horn but also large-scale assimilation of autochthonous lineages within East Africa and even Uganda itself. The Eastern Nilotic group also carries signals characteristic of West-Central Africa, primarily due to Bantu influence, whereas a much stronger signal in the Western Nilotic group suggests direct West-Central African ancestry. Bantu speakers share lineages with both Nilotic groups, and also harbour East African lineages not found in Western Nilotic speakers, likely due to assimilating indigenous populations since arriving in the region ~3000 years ago

    A sonographic spectrum of psoriatic arthritis: “the five targets”

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    Ultrasound is a rapidly evolving technique that is gaining an increasing success in the assessment of psoriatic arthritis. Most of the studies have been aimed at investigating its ability in the assessment of joints, tendons, and entheses in psoriatic arthritis patients. Less attention has been paid to demonstrate the potential of ultrasound in the evaluation of skin and nail. The aim of this pictorial essay was to show the main high-frequency grayscale and power Doppler ultrasound findings in patients with psoriatic arthritis at joint, tendon, enthesis, skin, and nail level

    Counting the Founders: The Matrilineal Genetic Ancestry of the Jewish Diaspora

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    The history of the Jewish Diaspora dates back to the Assyrian and Babylonian conquests in the Levant, followed by complex demographic and migratory trajectories over the ensuing millennia which pose a serious challenge to unraveling population genetic patterns. Here we ask whether phylogenetic analysis, based on highly resolved mitochondrial DNA (mtDNA) phylogenies can discern among maternal ancestries of the Diaspora. Accordingly, 1,142 samples from 14 different non-Ashkenazi Jewish communities were analyzed. A list of complete mtDNA sequences was established for all variants present at high frequency in the communities studied, along with high-resolution genotyping of all samples. Unlike the previously reported pattern observed among Ashkenazi Jews, the numerically major portion of the non-Ashkenazi Jews, currently estimated at 5 million people and comprised of the Moroccan, Iraqi, Iranian and Iberian Exile Jewish communities showed no evidence for a narrow founder effect, which did however characterize the smaller and more remote Belmonte, Indian and the two Caucasus communities. The Indian and Ethiopian Jewish sample sets suggested local female introgression, while mtDNAs in all other communities studied belong to a well-characterized West Eurasian pool of maternal lineages. Absence of sub-Saharan African mtDNA lineages among the North African Jewish communities suggests negligible or low level of admixture with females of the host populations among whom the African haplogroup (Hg) L0-L3 sub-clades variants are common. In contrast, the North African and Iberian Exile Jewish communities show influence of putative Iberian admixture as documented by mtDNA Hg HV0 variants. These findings highlight striking differences in the demographic history of the widespread Jewish Diaspora

    Mitogenomes from Egyptian Cattle Breeds: New Clues on the Origin of Haplogroup Q and the Early Spread of Bos taurus from the Near East

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    Background Genetic studies support the scenario that Bos taurus domestication occurred in the Near East during the Neolithic transition about 10 thousand years (ky) ago, with the likely exception of a minor secondary event in Italy. However, despite the proven effectiveness of whole mitochondrial genome data in providing valuable information concerning the origin of taurine cattle, until now no population surveys have been carried out at the level of mitogenomes in local breeds from the Near East or surrounding areas. Egypt is in close geographic and cultural proximity to the Near East, in particular the Nile Delta region, and was one of the first neighboring areas to adopt the Neolithic package. Thus, a survey of mitogenome variation of autochthonous taurine breeds from the Nile Delta region might provide new insights on the early spread of cattle rearing outside the Near East. Methodology Using Illumina high-throughput sequencing we characterized the mitogenomes from two cattle breeds, Menofi (N = 17) and Domiaty (N = 14), from the Nile Delta region. Phylogenetic and Bayesian analyses were subsequently performed. Conclusions Phylogenetic analyses of the 31 mitogenomes confirmed the prevalence of haplogroup T1, similar to most African cattle breeds, but showed also high frequencies for haplogroups T2, T3 and Q1, and an extremely high haplotype diversity, while Bayesian skyline plots pointed to a main episode of population growth ~12.5 ky ago. Comparisons of Nile Delta mitogenomes with those from other geographic areas revealed that (i) most Egyptian mtDNAs are probably direct local derivatives from the founder domestic herds which first arrived from the Near East and the extent of gene flow from and towards the Nile Delta region was limited after the initial founding event(s); (ii) haplogroup Q1 was among these founders, thus proving that it underwent domestication in the Near East together with the founders of the T clades
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