3,571 research outputs found
Experimental validation for the application of the flat jack test in cob walls
No full textThe flat jack test is one of the most applied investigation techniques in the field of cultural heritage conservation. The purpose of the experimental campaign presented in this paper was to assess the feasibility of the technique to measure the average compressive levels of stress in existing cob walls and determine their mechanical properties. It was observed that the single flat jack test tended to overestimate the average value of stress by a factor of two. Therefore, it is advised to apply a value of Ke 1⁄4 0:51 to correct the average compressive stress values obtained with the use of this technique
Numerical Modeling of Cob’s Nonlinear Monotonic Structural Behavior
No full textIt has been observed by performing simple and diagonal compression tests of cob wallettes
that the structural behavior of cob is highly nonlinear. This paper presents the results
obtained of the simulation of cob’s nonlinear monotonic behavior using two well-known
finite element commercial packages. Pros and cons of different available constitutive
material models are identified and discussed. Concrete (CONCR) and Concrete Damaged
Plasticity (CDP) are considered as the constitutive material models that provide the
more satisfactory results reproducing cob’s nonlinear monotonic behavior when using
ANSYS and ABAQUS, respectively
Analisis morfologico e histologico comparativo del aparato digestivo larual de cinco especies de coleopteros saproxilofilos monticolas del Estado de Hidalgo, Mexico
No full text
A limit analysis approach to the assessment of masonry arch structures under the influence of fundamental parameters
No full textThe majority of buildings in the world are made of masonry, and some of these buildings are historical constructions with heritage values. It is commonly known that masonry can withstand significant compressive stresses, but since it lacks tensile strength, it is more susceptible to dynamic actions. In this aspect a curvature was introduced in masonry constructions in order to reduce the tensile stresses and exploit their compressive strength. This innovative structural element in the past enabled crossing large spans without intermediate supports at the cost of a horizontal thrust transmitted to the supports. The structural condition of the supports constructed of masonry is of crucial importance to resist this horizontal force that varies in intensity based on the type of curvature of the arch. Additionally, a non-standard approach including joint friction has shown to be important in such structures and therefore sliding mechanisms are investigated. Research on critical parameters affecting the safety levels of piers under the thrust of arches is carried out using an in-house code (ALMA) that uses limit analysis as a rigid block approach to modeling masonry with frictional joints. Under two cases of vertical live load, symmetric and asymmetric, the different pier textures, levels of joint friction and arch shallowness, were examined. The main outcomes of the study demonstrate that even before initiating any expensive testing campaign, complex structural analysis, the investigation of these parameters in the structure itself present the most important features of its safety level and vulnerability.Presented at the 11th International Civil Engineering, Infrastructure and Environment Conference (IC-CEIE) 2022, Kosovo
“Pruebas rápidas en el diagnóstico de dengue en pacientes atendidos en servicios médicos generales San Juan SRL desde enero - junio del 2022”
No full textEl presente estudio estuvo orientado a resolver el siguiente problema
de investigación: ¿Cuál es la prevalencia del Dengue utilizando pruebas
rápidas en pacientes atendidos en Servicios Médicos Generales San Juan
SRL desde Enero - Junio del 2022?
El objetivo de Investigación fue: Determinar la prevalencia del
Dengue utilizando pruebas rápidas en pacientes atendidos en Servicios
Médicos Generales San Juan SRL desde Enero - Junio del 2022.
Material y métodos: La presente investigación es de tipo
cuantitativo y retrospectivo, con diseño no experimental, descriptivo. Se
trabajó con una muestra de 125 pacientes que se hicieron la prueba de
detección del Dengue Dúo en el laboratorio de la Clínica San Juan desde
Enero a Junio del 2022.
Resultados: Dengue Dúo que acudieron a la Clínica San Juan 2022,
52 (44.48%) fueron pacientes Dengue positivos, la mayor frecuencia por
sexo fueron hombres con 29 (55.77%) y con menor frecuencia fueron
mujeres 23 (44.23%), según edad fue de 31 a 40 años con 22 (44.31%) y
según la procedencia con 28 (53.85%) en zona rural. El marcador
serológico más frecuente fue el Dengue IgG con 24 (46.15%).
Conclusiones: Las pruebas rápidas de Dengue Dúo son útiles en el
diagnóstico de diferencial del Dengue con otras enfermedades con
sintomatología similar, el Ag NS1 es útil en el diagnóstico precoz del
dengue por ser una prueba de primera línea para infección aguda por el
virus del dengue.The present study was aimed at solving the following research problem: What is the frequency of Tuberculosis diagnosed with the rapid molecular method in the GeneXpert MTB/RIF platform in the Laboratory of Hospital III Iquitos EsSalud from January to December 2020?
The objective of the Research was: To determine the frequency of Tuberculosis diagnosed with the rapid molecular method on the GeneXpert MTB/RIF platform in the Laboratory of Hospital III Iquitos EsSalud from January to December 2020.
Material and methods: This research are quantitative and retrospective, with a non-experimental, descriptive design. We worked with a sample of 136 insured patients who underwent the molecular test for tuberculosis on the Xpert MTB/RIF platform. For the analysis of the information, the SPSS V.24 statistical package was used.
Results: A total of 136 molecular TB tests were processed, 83 (61.03%) of them came out and Mycobacterium tuberculosis was detected, according to gender, 47 (56.63%) were female; according to age from 61 to 70 years with 22 (26.51%), according to type of lung sample 80 (96.39%), according to resistance to rifampicin it was 3 (3.61%).
Conclusions: For the detection of Mycobacterium tuberculosis, the diagnosis by the Xpert MTB/RIF® test presented good sensitivity and specificity and provides faster results and leads to earlier treatment, improving the chances of interrupting transmission.Tesi
Nivel de autoestima en los padres de familia de los estudiantes de primer grado de secundaria de la I.E "Alejandro Sánchez Arteaga" La Arena Piura, 2018
Get PDFEl objetivo de la investigación es Identificar el Nivel de Autoestima de los Padres de Familia de los Estudiantes del primer grado de secundaria de la I.E "Alejandro Sánchez Arteaga" La Arena – Piura 2018. Este estudio es de tipo cuantitativo con un nivel descriptivo y de diseño no experimental, de corte transversal transeccional, empleando para la recolección de datos el instrumento Inventario de Autoestima de Stanley Coopersmith versión Adultos(1975), cuya población son todos los padres de familia de los estudiantes del primer grado de secundaria de la I.E “Alejandro Sánchez Arteaga” La Arena – Piura 2018, la muestra se aplicó a 138 adultos entre padres y madres de familia, Obteniéndose con un resultado que la autoestima en los padres de familia el 35, 50% un nivel medio bajo. En la sub escala sí mismo, se evidencia que el 32,60”% se encuentran en un nivel medio bajo. En la sub escala social, se evidencia que el 42,2% se encuentran en un nivel medio bajo. Por ultimo en la sub escala hogar, se evidencia que el” “44”,90% tienen un nivel medio bajo. Se llega a la conclusión que el nivel de autoestima en los padres de familia de los estudiantes del primer grado de secundaria de la I.E” “Alejandro Sánchez Arteaga” La Arena” – 2018, es “medio bajo.Tesi
Normalisation for Dynamic Pattern Calculi
Get PDFThe Pure Pattern Calculus (PPC) extends the lambda-calculus, as well as the family of algebraic pattern calculi, with first-class patterns; that is, patterns can be passed as arguments, evaluated and returned as results. The notion of matching failure of the PPC not only provides a mechanism to define functions by pattern matching on cases but also supplies PPC with parallel-or-like, non-sequential behaviour. Therefore, devising normalising strategies for PPC to obtain well-behaved implementations turns out to be challenging.
This paper focuses on normalising reduction strategies for PPC. We define a (multistep) strategy and show that it is normalising. The strategy generalises the leftmost-outermost strategy for lambda-calculus and is strictly finer than parallel-outermost. The normalisation proof is based on the notion of necessary set of redexes, a generalisation of the notion of needed redex encompassing
non-sequential reduction systems
Lesbianity, censorship and transgression: Cassandra Rios' autobiographical writing
No full textCassandra Rios (1932-2002), pseudônimo de Odete Rios, foi uma autora brasileira de literatura erótica que representava personagens homossexuais, e, sobretudo, relações amorosas entre mulheres. O principal período de sua produção marcou os anos da Ditadura Civil-Militar no Brasil (1964-1985), rendendo à autora e seus livros inúmeros processos de proibição, censura e perseguição, por serem estigmatizados e vistos como pornográficos. Além disso, Rios publicou duas obras autobiográficas, Mezzamaro, Flores e Cassis: o pecado de Cassandra (2000) e Censura: minha luta meu amor (1977), em que aborda momentos íntimos de sua trajetória e memória, tratando também da questão de sua perseguição durante, especialmente, as décadas de 1960 e 1970. Visando a possibilidade do estudo do campo das biografias e, mais
especificamente, das escritas autobiográficas como forma de compreender aspectos do contexto da autora em questão, bem como as dinâmicas de poder inseridas no processo de produção de uma escrita “de si” de autoria feminina, essa pesquisa tem como objetivo dar continuidade a um trabalho de iniciação científica e analisar as narrativas autobiográficas de Rios a partir de um viés historiográfico. Nesse sentido, será interpretada e mapeada a construção da escrita memorialística da autora, estabelecendo aproximações e distanciamentos com a teoria autobiográfica de autoria feminina, relacionando tal gênero com o contexto de produção de Cassandra Rios e a performance na escrita.Cassandra Rios (1932-2002), Odete Rios pseudonym, was a Brazilian author of erotic literature
that represented homossexual characters and above all, amorous relationships between women. The main period of her production marks the Brazilian Civil-Military Dictatorship's Years (1964-1985), yelding to the author her books countless processes, prohibitions, censorship and persecution for being stigmatized and seen as pornographic. In addition, Rios published two autobiographical writings, Mezzamaro, Flores e Cassis: o pecado de Cassandra (2000) e Censura: minha luta meu amor (1977) when she mentions intimate moments of her trajectory and memory, also dealing with the question about her persecution during especially the 1960s and 1970s. Aiming at the possibility of the biographies' studies and more specifically the autobiographical writings as a way of understanding aspects of the author's contexto in question, as well a the dynamics of power inserted in the process of producting a feminine "self-writing" this Project aims to continue scientific initiation work and analyze the autobiographical narratives of Rios from a historiographic perspective. In this sense, the construction of the author's memorialistic writing will be interprete and mapped, establishing approximations and distances with the female autobiographical theory relating such genre to the context of Cassandra Rios' production and her autobiographical performance.Não recebi financiament
Tito's Say: A Cantata by James DeMars with Texts by Alberto Rios
Get PDFabstract: Composer James DeMars has found a unique voice in the poetry of Alberto "Tito" Rios. The imagery combines memories and experiences of life on the Mexican/American border with scenes of love at various stages of life. The purpose of this study is to examine the structure, artistry and contemporary significance of Tito's Say, a cantata for soprano and baritone soloists, chorus, and orchestra by James DeMars with text by Alberto Rios, and to gain understanding of its inception, creation, composition, and subsequent performances. Description will be given in detail to increase familiarity with the work among choral musicians. Within this document, the reader will learn from personal interviews about James DeMars and Alberto Rios, focusing on their influences and experiences, including the circumstances leading up to the creation of Tito's Say. Furthermore, the reader will discover why the work was composed and how the collaboration came to be, details about its premiere, subsequent performances, and varying versions of this composition. A descriptive exploration and analysis of the text, its musical treatment, as well as an analysis of each of the five movements of the work are included herein, focusing on harmony, form, and style. Last, the author seeks to address stylistic and formal traits that unify the work, and performance considerations and challenges for the choir and for the orchestra. Appendices include available reviews, more extended biographies of both the composer and the poet compiled from interviews, and a works list of DeMars's compositions.Dissertation/ThesisD.M.A. Music 201
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