How socially aware are social media privacy controls?

Social media sites are key mediators of online communication. Yet the privacy controls for these sites are not fully socially aware, even when privacy management is known to be fundamental to successful social relationships

Language, Culture, and Violence in the Education Crisis of U.S. Latino/ as: Two Courses for Intervention

This article discusses the educational crisis of U.S. Latina/as and argues for the recognition and understanding of the extent to which institutional racism and violence are exercised by schools against this cultural sector. It then describes, as forms of intervention, a course which trainsfuture Spanish teachers in developing Latino cultural competence, and a community service learning course which offers tutoring and emotional support to at-risk middle school students

Glyphosate and AMPA concentrations in wind-blown material under field conditions

Agricultural intensification in fragile arid and semiarid environments has led to an increase in soil degradation, mainly through wind erosion. Argentina is an agricultural and cattle-farming country, which has increased its productivity in the last few decades, widening the boundaries of farm land and the use of herbicides to control weeds. Glyphosate, which accounts for 65% of the Argentinian pesticides market, is strongly retained in soil. The World Health Organization concluded that there was evidence to classify glyphosate as ‘probably carcinogenic to humans.’ In this context, the objective of this study was to determine the presence and concentration of glyphosate and aminomethylphosphonic acid (AMPA) in wind-blown material in 3 areas in Argentine semiarid regions (Chaco, La Pampa, and San Luis). In 1-ha2 plots, left uncovered and levelled, the wind-blown material was collected at heights of 13.5, 50, and 150 cm during 18 erosion events. The wind-blown material carried by the wind at a height of 150 cm had concentrations of 247 and 218 μg kg−1 of glyphosate and AMPA, respectively. This material was enriched 60 times in glyphosate and 3 times in AMPA as compared with the original soil. This shows that the eroded material can, potentially, have a negative impact on the ecosystem and also on human health, depending on the proportion of this material released into the atmosphere in suspension as particulate matter. This study is, to our knowledge, the first to report concentrations of glyphosate and AMPA in wind-blown material under field conditions.Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Aimar, Silvia Beatriz. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: de Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mendez, Mariano Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaFil: Costa, Jose Luis. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; Argentin

I want out of the labels : how Chuck Palahniuk\u27s characters challenge the dominant discourse

The purpose of this study was to explore postmodern identity in the work of Chuck Palahniuk. The characters within Palahniuk\u27s text Invisible Monsters realize the manner in which identity is a construct, and their response is to oppose and redefine it. In my research, I looked at how postmodern identity is defined by some of the leading critical thinkers in the field, and then I applied their thought to Palahniuk\u27s characters. I showed how these characters come to understand the process by which society defines them, and with that realization, they oppose its totalizing definitions. The characters deconstruct the natural attitudes society has towards identity, and they reveal that it is in some way possible to create a unique identity that is not easily definable by the ruling discourse. I concluded that his attention to identity highlights Palahniuk\u27s concern for the place, identity, and influence of his generation

Comparação entre facetas estéticas de cerâmica e de compósito a nível de capacidades mecânicas, estéticas e de preparação

Na prática dentaria das restaurações estéticas no sector anterior há, atualmente, muitas opções disponíveis para a escolha do medico dentista. A saber; cerâmicas de porcelana, cerâmicas All-ceram, cerâmicas híbridas (mistura de uma base resinosa com diversas partículas cerâmicas) e dentro dos compósitos, encontram-se os microparticulados, os nanoparticulados e os híbridos (microhíbridos e nanohíbridos). O objetivo de este trabalho fim de grado consiste em revisar a literatura atual e realizar uma comparativa a nível de capacidades mecânicas, estéticas e de preparação dentaria; com a intenção de discernir qual é o melhor material restaurador segundo que situações

Effect of ligands to toll-like receptors (TLR) 3, 7 and 9 on mice infected with mouse hepatitis virus A59

Mice infected with mouse hepatitis virus A59 (MHV-A59), an enveloped, positive-strand RNA Co-ronavirus, induce hepatitis, thymus involution, IgG2a-restricted hypergammaglobulinaemia, transaminase release and autoantibodies (autoAb) to liver and kidney fumarylacetoacetate hy-drolase (FAH). Since Toll-like receptors (TLR) play a central role in innate immunity, we explored the effects of TLR3, 7 and 9 stimulation on MHV mouse infection. Thus, the animals were treated with Poly (I:C), Loxoribine and CpG, the respective TLR ligands. MHV-infected mice inoculated with Poly (I:C) had significant lower levels of plasma transaminases and Ig, anti-MHV Ab, and uric acid than MHV-infected animals, whereas autoAb to kidney tissue were observed. Loxoribine only produced a slight decrease of uric acid levels and serum Ig. CpG showed deleterious effects on MHV-infected mice, since survival of animals dramatically dropped to about 10%. AutoAb to murine tissues and uric acid release were not affected, whereas transaminases and anti-MHV Ab were slightly elevated. Besides, CpG administration produced a decrease of the high levels of serum Ig induced by the virus. Therefore, results indicated that TLR3 stimulation appeared to protect the animals against the viral infection, whereas CpG aggravated its signs. Loxoribine, the TLR7 ligand, did not show major effects.Fil: Aparicio, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Duhalde Vega, Maite. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; ArgentinaFil: Retegui, Lilia Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini". Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Instituto de Química y Físico-Química Biológicas; Argentin

La Investigación en Empresa Familiar en la Última Década. Una Revisión Bibliométrica

This paper presents a bibliometric analysis of in family firms research, focusing on aspects that prior literature review studies did not fully understand or evaluate. It is based on the bibliometric evaluation of 3.368 scientific articles published from 2010 to 2020 in family firms (FF) as the title of the subject, keywords, and abstract. The authors discuss the results from the perspective of performance indicators and co-authorship visualization, giving a holistic bibliometric overview of the research topic. The field has attracted researchers and has led to the development of a wide body of literature. This study provides a synthesis and organization of existing knowledge on FF research.Este artículo intenta ofrecer una mejor comprensión de la literatura existente sobre investigación en empresas familiares, ampliando aspectos que estudios previos de revisión de la literatura no han comprendido o evaluado completamente. Proporciona una perspectiva actualizada y holística basada en la compilación, organización y sistematización de 3.368 artículos de investigación de empresas familiares publicados entre 2011 y 2020. Al realizar un análisis bibliométrico descriptivo, el estudio revela patrones en revistas, artículos y autores que ayudarán a la futura investigación en este ámbito

Factores asociados a grado de severidad de Covid-19 en gestantes del hospital regional Honorio Delgado, Arequipa, marzo - julio, 2021

INTRODUCCIÓN: La reciente aparición del nuevo coronavirus SARS-CoV-2, y la pandemia que provocada por ella demostró que las gestantes son un grupo de riesgo y son propensas a desarrollar formas graves de la enfermedad. El conocimiento sobre la infección por COVID-19 en gestantes tiene información limitada. Objetivo: determinar los factores asociados al grado de severidad de COVID-19 en gestantes del Hospital Regional Honorio Delgado entre los meses de marzo a julio del año 2021. MÉTODOS: Estudio descriptivo, transversal, retrospectivo. Se seleccionaron 232 gestantes hospitalizadas en el servicio de Obstetricia en el Hospital Regional Honorio Delgado entre los meses de marzo a julio del 2021 con el diagnóstico de COVID-19. Criterios de exclusión: gestantes con historias clínicas no completadas adecuadamente o ilegibles. Se revisaron historias clínicas buscando variables biológicas, sociodemográficas, obstétricas y laboratoriales. RESULTADOS: Los factores asociados al grado de severidad de COVID-19 en gestantes fueron: edad, ocupación, comorbilidades (asma, dislipidemia, hipotiroidismo, tromboembolismo pulmonar), patologías obstétricas (corioamnionitis, diabetes gestacional, embarazo tubárico roto, muerte neonatal, óbito fetal, oligoamnios, sufrimiento fetal agudo), edad gestacional, periodo de gestación, número de controles prenatales, vía de parto, estancia hospitalaria, número de leucocitos, linfocitos y nivel de fibrinógeno. CONCLUSIONES: Las gestantes diagnosticadas con COVID-19 y presenten los factores asociados mencionados, deben ser manejadas con especial atención, ya que pueden desarrollar formas graves de la enfermedad

A Parallel Application of Matheuristics in Data Envelopment Analysis

Data Envelopment Analysis (DEA) is a non-parametric methodology for estimating technical efficiency and benchmarking. In general, it is desirable that DEA generates the efficient closest targets as benchmarks for each assessed unit. This may be achieved through the application of the Principle of Least Action. However, the mathematical models associated with this principle are based fundamentally on combinatorial NP-hard problems, difficult to be solved. For this reason, this paper uses a parallel matheuristic algorithm, where metaheuristics and exact methods work together to find optimal solutions. Several parallel schemes are used in the algorithm, being possible for them to be configured at different stages of the algorithm. The main intention is to divide the number of problems to be evaluated in equal groups, so that they are resolved in different threads. The DEA problems to be evaluated in this paper are independent of each other, an indispensable requirement for this algorithm. In addition, taking into account that the main algorithm uses exact methods to solve the mathematical problems, different optimization software has been evaluated to compare their performance when executed in parallel. The method is competitive with exact methods, obtaining fitness close to the optimum with low computational time.J. Aparicio and M. González thank the financial support from the Spanish ‘Ministerio de Economía, Industria y Competitividad’ (MINECO), the ‘Agencia Estatal de Investigacion’ and the ‘Fondo Europeo de Desarrollo Regional’ under grant MTM2016-79765-P (AEI/FEDER, UE)