177,844 research outputs found
Informe de Geofísica Área de Reserva San Luis. Sector Rocas Básicas Zona Las Higueras, Provincia de San Luis
No full textFil: Torra, R. Dirección General de Fabricaciones Militares. Centro de Exploración Geológico Minero; Argentina
Productos de licuación de activos inmobiliarios: una comparativa internacional. Una aplicación en R studio
No full textTreballs Finals del Màster de Ciències Actuarials i Financeres, Facultat d'Economia i Empresa, Universitat de Barcelona, Curs: 2020-2022, Tutor: Dr. Salvador Torra PorrasLa finalidad de este trabajo es el estudio de aquellos productos financieros que dan liquidez a los activos inmobiliarios. Estos instrumentos permiten a la población de adultos mayores la posibilidad obtener recursos adicionales que sirven como complemento a la pensión que reciben por jubilación por parte del Estado, en aquella etapa de su vida donde los ingresos generalmente disminuyen y los gastos aumentan. Dado que la vivienda es uno de los principales activos que poseen los adultos mayores, es una gran oportunidad de estudiar las ventajas y desventajas que presentan estos productos. Para ello llevaremos a cabo un estudio de la rentabilidad financiera-fiscal de estos productos que nos permitirá obtener una visión global de estos productos. Además, intentaremos replicar en R studio uno de estos productos
A Review of the Imaging Techniques for Measuring Kidney and Cyst Volume in Establishing Autosomal Dominant Polycystic Kidney Disease Progression
No full textBackground: Autosomal dominant polycystic kidney disease (ADPKD) is the commonest inherited renal disorder; it is defined by progressive renal cyst formation and subsequent renal enlargement that leads to end-stage renal disease. Until recently, only symptomatic treatments for ADPKD existed. However, therapies that address the underlying pathophysiology of ADPKD are now available and accurate identification of the rate of disease progression is essential. Summary: Published data on the different imaging modalities for measuring kidney and cyst volumes in ADPKD are reviewed. The advantages and drawbacks of the different techniques for calculating kidney volume from renal imaging are also examined, including the use of manual planimetry, stereology, and the ellipsoid equation, as well as the prospect of semi- and fully automatic techniques. The translation of these approaches into clinical practice and their role in informing treatment decisions is discussed. Key Messages: These new therapies require the accurate monitoring of disease progression, which along with diagnosis and prognosis, relies on the effective use of renal imaging techniques. There is growing support for the use of total kidney volume as a measure of cyst burden and as a prognostic predictor of renal function in ADPKD, showing promise as a marker of disease progression
Data for: RECOMENDACIONES DE MANEJO DE LA AFECTACIÓN RENAL EN EL COMPLEJO ESCLEROSIS TUBEROSA
No full textArticles related to TS
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Técnicas de Machine Learning y Deep Learning: Una aplicación no vida en el ámbito asegurador
No full textTreballs Finals del Màster de Ciències Actuarials i Financeres, Facultat d'Economia i Empresa, Universitat de Barcelona, Curs: 2021-2022, Tutor: Salvador Torra PorrasLos modelos GLM cuentan con una tradición, confianza y respaldo por parte de la industria aseguradora en términos de medición de riesgos que ahora pueden complementarse con métodos y algoritmos que provienen de la inteligencia artificial. Los modelos XGBoost pueden ser una alternativa comparable en términos de precisión con los GLM, tienen una fácil implementación y pueden identificarse las variables con mayor importancia e influencia en los resultados. En este trabajo se han utilizados las herramientas y lenguajes de programación más reconocidos (R, Python. Scikit-Learn, TensorFlow y Keras) para estimar modelos GLM y de Inteligencia Artificial para clasificación y regresión tales como Random Forest, XGBoost y Redes Neuronales
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Automatic Machine Learning for Insurance: H2O Experiment
No full textTreballs Finals del Màster de Ciències Actuarials i Financeres, Facultat d'Economia i Empresa, Universitat de Barcelona, Curs: 2020-2021, Tutor: Dr. Salvador Torra PorrasThis thesis provides an introduction of machine learning (ML), shows the implication that ML has on the insurance sector and takes a special consideration to the H2O ensemble modelling approach for the insurance claim fraud detection binary classification. The aim of this thesis is to study the H2O Automatic ML potential and compare the results generated with traditional algorithms such as lineal perceptron, Logistic Regression, multilayer perceptron, support vector machine and decision tree. Using H2O web interface or R programming, not only the most efficient ML algorithms are obtained with no effort but also provide better modelling metrics than traditional methods
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
No full textLetter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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