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A New Generalization of the Truncated Gumbel Distribution with Quantile Regression and Applications
No full textIn this article, we introduce a new model with positive support. This model is an extension of the truncated Gumbel distribution, where a shape parameter is incorporated that provides greater flexibility to the new model. The model is parameterized in terms of the p-th quantile of the distribution to perform quantile regression in this model. An extensive simulation study demonstrates the good performance of the maximum likelihood estimators in finite samples. Finally, two applications to real datasets related to the level of beta-carotene and body mass index are presented
USO DE CONEXIÓN PLACAS APERNADAS AL ALA Y AL ALMA BFP
No full textEn la medida que más se conozca el marco teórico de la conexión precalificada BFP Bolted Flange Plate se diseñará de mejor forma, razón por la cual en este artículo se presenta con cierto detalle, en 17 pasos, el diseño de esta conexión que es muy adecuada para zonas de alta peligrosidad sísmica. El marco teórico se complementa con el desarrollo de un ejemplo numérico y finalmente se realizan varias recomendaciones prácticas sobre la conexión BFP.
ABSTRACT:
Asthe theoretical framework of the BFP Bolted Flange Plate pre-qualified connection is better known, it will be better designed. Consequently,in thispaperit is presented in some detailthis connection type, summarized in 17 steps. The design of this connection is recommendedfor steel buildings designed for areas withhigh seismic hazard.The theoretical framework is complemented with the development of a numerical example and finally several practical recommendations on the BFP connection are made
El exilio chileno en México . Organización y denuncia como resistencia al desarraigo
No full textEl golpe cívico-militar del 11 de septiembre de 1973, en Chile, irrumpió con su manto de miedo, silencio y horror en las vidas de miles de chilenas y chilenos que vivieron la prisión, la tortura, el asesinato, el exilio. La lucha por la defensa de los derechos humanos de los pueblos, gravemente atropellados en Chile, se extendió con la energía de una trama mancomunada de voluntades en muchos países del mundo. Gabriel Reyes Arriagada fue expulsado del país, bajo la Ley de Seguridad Interior del Estado, sin derecho a retorno, sin juicio ni cargos, vivió su extenso exilio en México. A través de conversaciones sostenidas durante varios meses se fue configurando un espacio dialógico de presente y memoria que develó la red de distintas organizaciones solidarias con el pueblo de Chile. Entre ellas está Casa de Chile en México y la Secretaría para América de Solidaridad con el Pueblo de Chile. Recoger el testimonio de Gabriel es volver sobre el pasado, como una tarea política necesaria y con la convicción de que la historia debe ser relatada por quienes lo vivieron.The civic-military coup of September 11, 1973, in Chile, burst with its mantle of fear, silence, and horror into the lives of thousands of Chilean men and women who lived through prison, torture, murder, and exile. The fight to defend the human rights of the people, seriously violated in Chile, spread with the energy of a united network of wills in many countries of the world. Gabriel Reyes Arriagada was expelled from the country, under the State’s Internal Se-curity Law, without the right of return, without trial or charges, he lived his extensive exile in Mexico. Through conversations held for several months, a dialogic space of present and memory was created, which revealed the network of different organizations in solidarity with the people of Chile. Among them are Casa de Chile in Mexico and the Secretariate for Solidarity in America with the Chilean People. To collect Gabriel's testimony is to return to the past, as a necessary political task and with the conviction that history must be told by those who lived it
Reinterpreting the ecology of knowledge and intercultural translation from the pluricultural construction of knowledge
No full textThe objective of the paper is to explore the grammars of knowledge production and their projections as criteria of validity, or invisibility, for the integration of these into the cultural reservoir of the communities in which they are participants. From the analysis and discussion of the categories of 'ecology of knowledge'; 'intercultural translation' and 'recontextualization' seek to unravel the mechanics of how these knowledge structures of validated knowledge are transformed into markers of social relations. That is, the relationships established by the different elements that make up the structure of knowledge and the type of realities-knowledge that they account for. It concludes by making a critical assessment of the horizon of possibilities that the social praxis of recontextualizing knowledge allows in terms of its possibilities of valuing traditional indigenous knowledge as constitutive knowledge of the reservoir of knowledge that structures the thinking of their cultural contexts, to the extent that. For this reason, it is postulated as a sine qua non condition to implement Bernstein's 'recontextualization' or Santos's 'ecology of knowledge' in its political nature based on collective and explicit moral principles
High-intensity interval training reduces the induction of neutrophil extracellular traps in older men using live-neutrophil imaging as biosensor
No full textNeutrophil extracellular trap formation (NETosis) is a mechanism used by neutrophils to capture pathogens with their own DNA. However, the exacerbation of this immune response is related to serious inflammatory diseases. Aging is known to lead to an excessive increase in NETosis associated with various diseases. Under this scenario, the search for strategies that regulate the release of NETosis in older people becomes relevant. High-intensity interval training (HIIT) involves repeated bouts of relatively intense exercise with alternating short recovery periods. This training has shown beneficial effects on health parameters during aging and disease. However, little is known about the potential role of HIIT in the regulation of NETosis in healthy older people. The aim of this study was to evaluate the induction of NETosis by serum from healthy young and older men, before and after 12 weeks of HIIT using healthy neutrophils as a biosensor. HIIT was performed 3 times per week for 12 weeks in young (YOUNG; 21 +/- 1 years, BMI 26.01 +/- 2.64 kg center dot m(-2), n = 10) and older men (OLDER; 66 +/- 5 years, BMI 27.43 +/- 3.11 kg center dot m(-2), n = 10). Serum samples were taken before and after the HIIT program and NETosis was measured with live cell imaging in donated neutrophils cultured with serum from the participants for 30 h. Our results showed that serum from older men at baseline induced greater baseline NETosis than younger men (p = 0.8), and 12 weeks of HIIT significantly reduced (Interaction Effect, p < 0.05; effect size, 0.134) the induction of NETosis in older men. In conclusion, HIIT is a feasible non-invasive training strategy modulating NETosis induction. Additionally, the use of neutrophils as a biosensor is an effective method for the quantification of NETosis induction in real time
Pain neuroscience education for patients with chronic pain: A scoping review from teaching-learning strategies, educational level, and cultural perspective
No full textObjective: (1) To identify the characteristics of PNE programs in terms of teaching-learning strategies, session modality, content delivery format, number of sessions, total minutes and instructional support material used in patients with chronic musculoskeletal pain, (2) to describe PNE adaptations for patients with different educational levels or cultural backgrounds, and (3) to describe the influence of the patient's educational level or cultural background on the effects of PNE. Methods: The PRISMA guideline for scoping reviews was followed. Nine databases were systematically searched up to July 8, 2023. Articles that examined clinical or psychosocial variables in adults with chronic musculoskeletal pain who received PNE were included. Results: Seventy-one articles were included. Studies found benefits of PNE through passive/active teachinglearning strategies with group/individual sessions. However, PNE programs presented great heterogeneity and adaptations to PNE were poorly reported. Most studies did not consider educational level and culture in the effects of PNE. Conclusions: Despite the large number of studies on PNE and increased interest in this intervention, the educational level and culture are poorly reported in the studies. Practical implications: It is recommended to use passive and/or active teaching-learning strategies provided in individual and/or group formats considering the patient's educational level and culture
Persistence and pathway of glyphosate degradation in the coastal wetland soil of central Delaware
No full textGlyphosate is a globally dominant herbicide. Here, we studied the degradation and microbial response to glyphosate application in a wetland soil in central Delaware for controlling invasive species (Phragmites australis). We applied a two-step solid-phase extraction method using molecularly imprinted polymers designed for the separation and enrichment of glyphosate and aminomethylphosphonic acid (AMPA) from soils before their analysis by ultra-high-performance liquid chromatography (UHPLC) and Q Exactive Orbitrap mass spectrometry methods. Our results showed that approximately 90 % of glyphosate degraded over 100 d after application, with AMPA being a minor (<10 %) product. Analysis of glyphosate-specific microbial genes to identify microbial response and function revealed that the expression of the phnJ gene, which codes C-P lyase enzyme, was consistently dominant over the gox gene, which codes glyphosate oxidoreductase enzyme, after glyphosate application. Both gene and concentration data independently suggested that C-P bond cleavage-which forms sarcosine or glycine-was the dominant degradation pathway. This is significant because AMPA, a more toxic product, is reported to be the preferred pathway of glyphosate degradation in other soil and natural environments. The degradation through a safer pathway is encouraging for minimizing the detrimental impacts of glyphosate on the environment
Militarismo, racismo e sensibilidades bárbaras: sociogênese do autoritarismo do controle social e punitivo no Cone Sul
No full textMilitarismo, racismo e sensibilidades bárbaras são analisados como peculiaridades socioculturais que, decorrentes de processos sociais de longa duração no Cone Sul da América Latina, repercutem em características e chaves de interpretação dos sistemas de controle social e punição que se verificam na atualidade. Trata-se de pesquisa de caráter exploratório e base bibliográfica, referenciada na sociologia processual de Norbert Elias. Seus resultados contribuem tanto para evidenciar elementos de amálgamas autoritárias e de microdespotismos sociais, como para a elaboração de uma agenda de investigações no campo da Sociologia Histórica da Punição.Se analizan el militarismo, el racismo y las sensibilidades bárbaras como peculiaridades socioculturales que, producto de procesos sociales de larga duración en el Cono Sur de América Latina, inciden en características y claves de interpretación de los sistemas de control social y castigo que se encuentran en la actualidad. Se trata de uma investigación exploratoria com base bibliográfica, referenciada em la sociología procesual de Norbert Elias. Sus resultados contribuyen tanto a resaltar elementos de amalgamas autori-tarias y microdespotismos sociales, como a la elaboración de una agenda de investigaciones em el campo de la Sociología Histórica de la Pena.Militarism, racism and barbarian sensibilities are analyzed as sociocultural peculiarities that, resulting from long-term social processes in the Southern Cone of Latin America, have repercussions for the charac-teristics and keys of interpretation of the systems of social control and pu-nishment existing today. This is an exploratory research work with a biblio-graphic basis, its main point of reference being the processual sociology of Norbert Elias. Its results contribute both to highlighting elements of autho-ritarian amalgams and social microdespotisms, and to the drafting of an in-vestigation agenda in the field of the Historical Sociology of Punishment
Can exercise-based interventions reverse gray and white matter abnormalities in patients with chronic musculoskeletal pain? A systematic review
No full textCollaborative writing of argumentative texts in English using Google Drive
Get PDFEl objetivo de la presente investigación fue determinar el efecto de la escritura colaborativa en el desempeño de estudiantes de inglés como L2 al producir textos argumentativos en dicha lengua, apoyados por una herramienta para escritura colaborativa en línea (Google Drive) y un tratamiento de doce sesiones en modalidad semipresencial, y comparar los resultados con un grupo control que desarrolló los textos de manera individual. Se trata de un estudio cuasiexperimental con pretest, postest inmediato y dos postest diferidos para ambos grupos, con un modelo de efectos mixtos de medidas repetidas. Los resultados permiten validar la hipótesis de que la escritura colaborativa apoyada por herramientas tecnológicas favorece, facilita y agiliza el logro de los alumnos en la escritura en inglés como L2 en modalidad semipresencial y en contexto de instrucción con fines académicos.The objective of this research was twofold: to measure the effect of collaborative writing in the performance of students of English for writing argumentative texts in English as L2 by means of an online collaborative writing tool (Google Drive) for a period of 12 sessions in a b-Learning environment, and to compare these results with those of a control group working individually. The quasi experimental study involved pre-test, immediate post-test, and two delayed post-tests for both groups, in a mixed model for repeated measures. Results allow for hypothesis validation, namely, that b-Learning collaborative writing supported by technological tools improves, facilitates and encourages student gains in writing in English as L2 in an instructional environment for academic purposes