305 research outputs found
Factores influyentes en la velocidad de un lanzamiento en apoyo en balonmano
Uno de los factores más influyentes en el lanzamiento a portería en balonmano es la velocidad. Las evidencias encontradas hasta la fecha nos muestran diferentes variables que pueden influir en la velocidad del lanzamiento por lo que el presente trabajo pretende analizar la influencia de las principales variables que pueden influir en la velocidad de lanzamiento. Para ello, diez jugadores balonmano amateur fueron evaluados en test de Abducción (ABD), Rotación Externa (RE), Fuerza Isométrica (FI), Fuerza Dinámica (FD) y Velocidad. El análisis de estos test mostró relación entre la RE y la V (r=0,646; p>0,05), la FI y la V (r=0,689; p>0,05) y la FD y la V (r=0,686; p>0,05). Sin embargo, no se encontraron relaciones significativas entre ABD y V. Por lo tanto, existe influencia de la rotación externa, la fuerza isométrica y la fuerza dinámica sobre la velocidad. Palabras clave: Lanzamiento, velocidad, movilidad, fuerza isométrica, fuerza dinámica, balonman
Empathy levels of American and Bahamian Special Education graduate students and students in other majors
This study investigated the empathy of Special Education graduate students in the USA and the Bahamas, and of Counseling and Organizational Learning students. About 180 students were administered the Interpersonal Reactivity Index to assess: fantasy, perspective taking, empathetic concern, and personal distress. Significant differences existed by major and country
Fuzzing multiplataforma guiado con ejecucción concólica
Tesis (Lic. en Ciencias de la Computación)--Universidad Nacional de Córdoba, Facultad de Matemática, Astronomía, Física y Computación, 2023.Fil: Aznarez Rojo, Gastón. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina.Fuzzing o pruebas de Fuzz, es el proceso de encontrar vulnerabilidades de
seguridad en programas, dándole como entrada datos inválidos, inesperados o
aleatorios. Como este proceso es altamente dependiente de la interfaz de entrada y del entorno de ejecución del sujeto bajo análisis, realizar Fuzzing sobre
programas con interfaces complejas y/o entornos de ejecución poco flexibles, se
vuelve más complicado y casi inviable.
En este trabajo desarrollaremos y analizaremos una herramienta para realizar pruebas de Fuzzing guiado sobre binarios compilados para plataformas foráneas y dependientes del entorno de ejecución.
El proceso se lleva a cabo capturando el programa bajo análisis, emulando el
mismo y utilizando ejecución simbólica dinámica para generar casos de prueba,
con el objetivo de conseguir una mayor cobertura del programa con la menor
cantidad de intentos.
A su vez, se mostrarán los desafı́os impuestos por la naturaleza del problema,
las herramientas utilizadas y la arquitectura del fuzzer. Por último, se puso a
prueba la herramienta con un caso de estudio sobre una plataforma especı́fica,
para encontrar un error introducido previamente y con el objeto de vulnerar el
programa.Fuzzing, or Fuzz testing, is the process of finding security vulnerabilities
in programs by providing invalid, unexpected, or random data as input. Since
this process is highly dependent on the input interface and the execution en-
vironment of the subject under analysis, performing Fuzzing on programs with
complex interfaces and/or inflexible execution environments becomes more com-
plicated and almost unfeasible.
In this work, we will develop and analyze a tool to perform guided Fuzzing
tests on binaries compiled for foreign platforms and dependent on the execution
environment.
The process is carried out by capturing the program under analysis, emula-
ting it, and using dynamic symbolic execution to generate test cases, aiming to
achieve greater program coverage with the fewest attempts.
Additionally, the challenges imposed by the nature of the problem, the tools
used, and the fuzzer architecture will be presented. Finally, the tool was tested
with a case study on a specific platform to find a previously introduced bug and
to exploit the program.Fil: Aznarez Rojo, Gastón. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina
Apuntes de un proceso célebre
Enc. rúst.Sello de la "Biblioteca del Conde de Bureta"Sello de "Secciones populares, Zaragoza, Biblioteca pública de la Ciudad
Study on the impacts of possible amendments to the ATEX, the Machinery, and the Pressure Equipment Directives with respect to equipment intended for use in the offshore oil and gas industry
The purpose of this study is to provide the Commission with the information necessary for the assessment of the economic, social, and environmental impacts of a possible extension of the scope of the EU product safety legislation (ATEX Directive 2014/34/EU, Pressure Equipment Directive 2014/68/EU and Machinery Directive 2006/42/EC) with respect to equipment intended for the use in the offshore oil and gas industry. Whereas equipment on fixed units is in the scope of these three Directives, mobile offshore units and equipment installed on them are currently in general excluded. In addition the Pressure Equipment Directive excludes also well-control equipment. The study investigates whether there are safety issues which could be addressed by extending the scope of the Directives and what would be the impacts of such an extension.JRC.F.3-Energy Security, Systems and Marke
Euro Stoxx 50: 1997-2005. Shareholder value creation in Europe
2005 was a very good year for the shareholders of the companies in the Euro Stoxx 50. The shareholder value creation of these 50 companies was €292.9 billion. The companies that created most value for their shareholders were Total (€30 billion), Sanofi-Synthelabo (€23.2 billion) and Eni (€20.7 billion). The companies that destroyed most value were telecoms: Deutsche Telekom (€-14.8 billion), France Telecom (€-11.8 billion) and Telecom Italia (€-7.1 billion). In 2005, the Euro Stoxx 50 was slightly more volatile than the S&P 500. Shareholder value creation in the three-year period 2003-2005 was €551 billion. The market value of the 50 companies included in the Euro Stoxx 50 was €2.1 trillion in 2005, although only €1.8 trillion were included in the index. SAP was the top shareholder value creator and Deutsche Telekom the top shareholder value destroyer during the eight-year period 1997-2005. A portfolio long in the companies that entered the index and short in the companies that abandoned the index had on average a 6.85% return in the 20 days prior to the index recomposition and a 0.97% return in the 20 days after the index recomposition.shareholder value creation; created shareholder value; shareholder value added; shareholder return; required return to equity;
Apuntes de un proceso célebre
Copia Digital. España : Ministerio de Cultura y Deporte. Subdirección General de Coordinación Bibliotecaria, 2022- L
Wildness and habitat quality drive spatial patterns of urban biodiversity
Unidad de excelencia María de Maeztu CEX2019-000940-MUrban green and blue spaces (UGBS) are key for biodiversity conservation. Many studies focus on UGBS benefits for well-being, but how UGBS ecological and quality influence urban biodiversity is still poorly understood. We analysed the predictive accuracy of urban wildness (UW) and habitat quality (HQ) spatial patterns to biodiversity in the city of Vitoria-Gasteiz, Basque Country. Using GIS techniques, we mapped relative UW as a landscape quality, considering remoteness, challenging terrain, and perceived naturalness. We further evaluated HQ using the InVEST habitat quality module, including data on habitat sensitivity to threats (e.g. population density, light and noise pollution, accessibility) and suitability for biodiversity support, based on a parametrization by expert consultation. We compared UW and HQ to observed species richness obtained from crowd-sourced databases as a biodiversity proxy. UW and HQ models predicted general biodiversity urban patterns, being particularly adequate in UGBS. Peripheral UGBS were associated with higher UW and HQ and positively correlated to biodiversity, as opposed to the smaller-sized centrally located UGBS, more exposed to threats. Both predictors significantly explained biodiversity, and HQ better accounted for threat susceptibility in UGBS. Our findings suggest that small-sized UGBS, such as parks and squares, fail to effectively support urban biodiversity, due to their high exposure and vulnerability to threats, particularly in centric areas. Emphasizing efforts in larger centric UGBS with rewilding strategies (e.g. lowering management frequency) and reducing exposure to threats is essential to increase the habitat quality of UGBS and thus support urban biodiversity
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