67 research outputs found
Úrsula (1859), de Maria Firmina dos Reis: o pensamento decolonial na literatura brasileira do século XIX
The literary use of words, as a vehicle of ideas and discourses, is a concrete practice of the power of the language from which we have notable examples among the writers of our continent, especially concerning the cultivation of the decolonial thinking (DUSSEL, 199), and about the seeking for decolonization of the minds, the identities, and the imaginary world of Latin American people. In this context, in the field of Brazilian Literature, there’s a feminine writer, a teacher, a negro and abolitionist woman who took advantage of this power of language to show her vision and her political and ideological position in front of slavery inherent to coloniality, and so she expressed herself against this not humanist action in the 19Th century. The work selected to guide our reflections along this article is the novel Úrsula, published in 1859, by the writer born in the State of Maranhão/Brazil, Maria Firmina dos Reis. Through a bibliographic revision and our literary analysis, we stablish here some considerations about the decolonial background (DORADO MENDEZ, FLECK, 2022) of the writings of this 19th century novelist and we also reflect about the use of literary texts as paths to show the way women think and the role of women in the Latin American context. As ways of theoretical support for our writing we count on the presumptions by Mignolo (2017), Quijano (1997), Guerra (2007), Lopez (2020), Uber (2022), among others. We highlight the primacy of Reis in expressing the decolonial thinking among the negro Latin American women against slavery and the exploration of human beings.O uso literário da palavra, como veículo de ideias e de discursos, é uma prática concreta do poder da linguagem do qual temos exemplos notáveis entre os escritores do nosso continente, em especial, em relação ao cultivo do pensamento decolonial (DUSSEL, 1993) e a busca pela descolonização das mentes, das identidades e do imaginário latino-americano (FLECK, 2017). Nesse sentido, no espaço literário brasileiro, destaca-se uma mulher escritora, professora, negra e abolicionista que soube valer-se desse poder para imprimir sua visão e seu posicionamento político e ideológico frente à escravização decorrente da colonialidade, expressando-se, no século XIX, contrária a essa prática desumana. A obra selecionada para nossas reflexões é o romance Úrsula, de 1859, da escritora maranhense Maria Firmina dos Reis. Por meio da revisão bibliográfica e da análise literária, realizamos considerações sobre a escrita de caráter decolonial (DORADO MENDEZ, FLECK, 2022) presente na escrita dessa romancista e refletimos, também, sobre o uso do texto literário como via à exposição do pensamento feminino e do papel da mulher no espaço latino-americano. São fundamentos teóricos para isso as reflexões de Mignolo (2017), Quijano (1997), Guerra (2007), Lopez (2020), Uber (2022), entre outros. Destacamos, assim, o pioneirismo de Reis na expressão do pensamento decolonial entre as mulheres negras latino-americanas frente à escravização e à exploração do ser humano
Quando as mulheres contam histórias: A mãe da mãe da sua mãe e suas filhas (2002) – a construção da memória familiar pela contação de histórias
Neste texto buscamos mostrar como as tradições da oralidade são incorporadas, também, pela escrita romanesca hodierna latino-americana (OLIVEIRA, 2019). Para isso, propomos realizar a leitura do romance A mãe da mãe da sua mãe e suas filhas (2002), de Maria José Silveira. Essa obra é por nós classificada como um romance histórico contemporâneo de mediação, de acordo às proposições teóricas de Fleck (2017). As características dessa modalidade expressiva do gênero são apontadas por nós ao longo do texto e suas especificidades são discutidas com base, também, em Klock (2020), Oliveira (2019), entre outros. Na diegese desse romance, a narradora exerce a função de “contadora de histórias” (SANTOS; APOEMA; ARAPIRACA, 2018), traço cultural dos povos ancestrais da América. Por meio da evocação das memórias familiares, a enunciação destaca a importância das mulheres na construção da sociedade brasileira ao longo dos 500 anos de história da nação. Para tratarmos da figuração da mulher na história e na literatura, valemo-nos dos pressupostos de Zolin (2009); Lopez (2020), Uber (2022), entre outros. Demostramos, assim, que o romance histórico em suas vertentes críticas latino-americanas (FERNÁNDEZ PRIETO, 2003; LARIOS, 1997; KLOCK, 2020) apresenta projetos estéticos decoloniais (MIGNOLO, 2017; LUGONES, 2019) que valorizam, na escrita literária, as tradições da oralidade. Isso resulta na valorização, na preservação e na resistência dessas expressões da cultura popular das nações da América Latina
Modelo metodológico para programación de tareas en sistemas de servicios: un enfoque de ingeniería de software
This paper presents an approach of software engineering to a research proposal to make an Expert System to scheduling on service systems using methodologies and processes of software development. We use the adaptive software development as methodology for the software architecture based on the description as a software metaprocess that characterizes the research process. We make UML’s diagrams (Unified Modeling Language) to provide a visual modeling that describes the research methodology in order to identify the actors, elements and interactions in the research process.Se presenta una estructura de Ingeniería de Software (IS) para un proyecto de investigación relacionada con la construcción de un prototipo de Sistema Experto (SE) para la programación de tareas en sistemas de servicios (PTSS), empleando metodologías y procesos del desarrollo de software. Se utiliza la metodología de desarrollo de software adaptable para el desarrollo de la arquitectura de software, partiendo de la descripción como un metaproceso de software que caracterizará el proceso de la investigación. Se emplean diagramas de UML (Unified Modeling Language) para proporcionar un modelado visual que describe la metodología del trabajo de investigación, que permite establecer los actores, elementos e interacciones en el proceso de investigación
Vulnerabilidad territorial ante la expansión urbana
En México según el INEGI para el 2010 la población urbana fue del 77.8%, lo que significa que un porcentaje importante de la población vive en localidades mayores a los 2500 habitantes. Las cuales tienen sus propios ritmos de crecimiento, funciones, especialización, cambios de usos del suelo y problemáticas específicas. Las ciudades principales se han expandido, en las últimas décadas, con escasa acción planificadora y bajos resultados en el ordenamiento territorial. Ello ha configurado crecimientos físicos dispersos y fragmentados con importantes efectos ambientales. En México, la dispersión urbana genera ocupación del territorio en riesgos, situaciones de vulnerabilidad con inexistencia de acciones públicas, porque se encuentra en pendientes abruptas, lugares que se inundan, en áreas naturales protegidas, entre otras formas, genera tejido construido en áreas no óptimas para el desarrollo urbano, todo ello impacta negativamente al medio ambiente y la calidad de vida de la población. El crecimiento urbano continuará porque en las ciudades se genera la riqueza del país, en ellas se encuentran las oportunidades y soluciones. La urbanización es el modelo para conseguir el desarrollo de la sociedad. En dicho desarrollo se aspira el crecimiento sustentable y armonioso con el ambiente. Se espera cambios regulatorios para revertir los efectos negativos generados durante décadas con la expansión urbana consumidora de recursos naturales, energía y recursos financieros. En este marco problemático se integra el libro “Vulnerabilidad territorial ante la expansión urbana”, es producto de las actividades científicas –foro y congreso realizados en 2015- de la Red internacional de territorios, sustentabilidad y gobernanza en México y Polonia (RETESYG) de la Facultad de Geografía, Facultad de Planeación Urbana y Regional de la Universidad Autónoma del Estado de México (UAEM), así como de la Facultad de Geografía y Estudios Regionales de la Universidad de Varsovia (UV) y la Facultad de Geografía y Biología de la Universidad Pedagógica “Comisión de Educación Nacional” de Cracovia. El libro tiene una visión integral de la vulnerabilidad territorial ante la expansión urbana, considera los enfoques de la geografía, de la planeación y del ordenamiento territorial para abordar las problemáticas ambiental y social. Presenta una visión amplia y de síntesis sobre vulnerabilidad del territorio y de las ciudades, en él se integran los saberes de la Geografía y de la Planeación Territorial. Destaca la necesidad de controlar el crecimiento anárquico y desordenado, las desigualdades sociales, los riesgos, los problemas ambientales, la falta de bases de datos geoespaciales dinámicas, entre otros. Los resultados de las investigaciones apuntan hacia el desarrollo territorial sustentable. El libro se conforma de dos partes, la primera presenta aspectos teóricos conceptuales y metodológicos de la vulnerabilidad territorial, estructural, física, ambiental y socioeconómica, los riesgos geomorfológicos, la sustentabilidad y manejo de recursos naturales, áreas naturales protegidas, metodologías para la evaluación de los impactos de la expansión metropolitana y gobernanza territorial. La segunda parte, desarrolla estudios de caso, a distintas escalas: desde huertos familiares, subcuentas, ciudad, municipio, zonas metropolitanas, megalópolis, regiones y país. En cada capítulo del libro se presenta bibliografía extensa, diversificada y actualizada que aportan al lector sobre el estado del arte de la vulnerabilidad territorial
Enfrentando los riesgos socionaturales
El objetivo del libro es comprender la magnitud de los Riesgos Socionaturales en México y Latinoamérica, para comprender el peligro que existe por algún tipo de desastre, ya sea inundaciones, sismos, remoción en masa, entre otros, además conocer qué medidas preventivas, correctivas y de contingencias existen para estar atentos ante alguna señal que la naturaleza esté enviando y así evitar alguna catástrofe. El libro se enfoca en los aspectos básicos de análisis de los peligros, escenarios de riesgo, vulnerabilidad y resiliencia, importantes para la gestión prospectiva o preventiva
Association between convalescent plasma treatment and mortality in COVID-19: a collaborative systematic review and meta-analysis of randomized clinical trials.
Funder: laura and john arnold foundationBACKGROUND: Convalescent plasma has been widely used to treat COVID-19 and is under investigation in numerous randomized clinical trials, but results are publicly available only for a small number of trials. The objective of this study was to assess the benefits of convalescent plasma treatment compared to placebo or no treatment and all-cause mortality in patients with COVID-19, using data from all available randomized clinical trials, including unpublished and ongoing trials (Open Science Framework, https://doi.org/10.17605/OSF.IO/GEHFX ). METHODS: In this collaborative systematic review and meta-analysis, clinical trial registries (ClinicalTrials.gov, WHO International Clinical Trials Registry Platform), the Cochrane COVID-19 register, the LOVE database, and PubMed were searched until April 8, 2021. Investigators of trials registered by March 1, 2021, without published results were contacted via email. Eligible were ongoing, discontinued and completed randomized clinical trials that compared convalescent plasma with placebo or no treatment in COVID-19 patients, regardless of setting or treatment schedule. Aggregated mortality data were extracted from publications or provided by investigators of unpublished trials and combined using the Hartung-Knapp-Sidik-Jonkman random effects model. We investigated the contribution of unpublished trials to the overall evidence. RESULTS: A total of 16,477 patients were included in 33 trials (20 unpublished with 3190 patients, 13 published with 13,287 patients). 32 trials enrolled only hospitalized patients (including 3 with only intensive care unit patients). Risk of bias was low for 29/33 trials. Of 8495 patients who received convalescent plasma, 1997 died (23%), and of 7982 control patients, 1952 died (24%). The combined risk ratio for all-cause mortality was 0.97 (95% confidence interval: 0.92; 1.02) with between-study heterogeneity not beyond chance (I2 = 0%). The RECOVERY trial had 69.8% and the unpublished evidence 25.3% of the weight in the meta-analysis. CONCLUSIONS: Convalescent plasma treatment of patients with COVID-19 did not reduce all-cause mortality. These results provide strong evidence that convalescent plasma treatment for patients with COVID-19 should not be used outside of randomized trials. Evidence synthesis from collaborations among trial investigators can inform both evidence generation and evidence application in patient care
A Roadmap for HEP Software and Computing R&D for the 2020s
Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facilities and experiments, or to upgrade existing ones. Similarly, it requires commensurate investment in the R&D of software to acquire, manage, process, and analyse the shear amounts of data to be recorded. In planning for the HL-LHC in particular, it is critical that all of the collaborating stakeholders agree on the software goals and priorities, and that the efforts complement each other. In this spirit, this white paper describes the R&D activities required to prepare for this software upgrade.Peer reviewe
Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world
Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic.
Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality.
Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States.
Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis.
Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection
Canagliflozin and renal outcomes in type 2 diabetes and nephropathy
BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years
The Changing Landscape for Stroke\ua0Prevention in AF: Findings From the GLORIA-AF Registry Phase 2
Background GLORIA-AF (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients with Atrial Fibrillation) is a prospective, global registry program describing antithrombotic treatment patterns in patients with newly diagnosed nonvalvular atrial fibrillation at risk of stroke. Phase 2 began when dabigatran, the first non\u2013vitamin K antagonist oral anticoagulant (NOAC), became available. Objectives This study sought to describe phase 2 baseline data and compare these with the pre-NOAC era collected during phase 1. Methods During phase 2, 15,641 consenting patients were enrolled (November 2011 to December 2014); 15,092 were eligible. This pre-specified cross-sectional analysis describes eligible patients\u2019 baseline characteristics. Atrial fibrillation disease characteristics, medical outcomes, and concomitant diseases and medications were collected. Data were analyzed using descriptive statistics. Results Of the total patients, 45.5% were female; median age was 71 (interquartile range: 64, 78) years. Patients were from Europe (47.1%), North America (22.5%), Asia (20.3%), Latin America (6.0%), and the Middle East/Africa (4.0%). Most had high stroke risk (CHA2DS2-VASc [Congestive heart failure, Hypertension, Age 6575 years, Diabetes mellitus, previous Stroke, Vascular disease, Age 65 to 74 years, Sex category] score 652; 86.1%); 13.9% had moderate risk (CHA2DS2-VASc = 1). Overall, 79.9% received oral anticoagulants, of whom 47.6% received NOAC and 32.3% vitamin K antagonists (VKA); 12.1% received antiplatelet agents; 7.8% received no antithrombotic treatment. For comparison, the proportion of phase 1 patients (of N = 1,063 all eligible) prescribed VKA was 32.8%, acetylsalicylic acid 41.7%, and no therapy 20.2%. In Europe in phase 2, treatment with NOAC was more common than VKA (52.3% and 37.8%, respectively); 6.0% of patients received antiplatelet treatment; and 3.8% received no antithrombotic treatment. In North America, 52.1%, 26.2%, and 14.0% of patients received NOAC, VKA, and antiplatelet drugs, respectively; 7.5% received no antithrombotic treatment. NOAC use was less common in Asia (27.7%), where 27.5% of patients received VKA, 25.0% antiplatelet drugs, and 19.8% no antithrombotic treatment. Conclusions The baseline data from GLORIA-AF phase 2 demonstrate that in newly diagnosed nonvalvular atrial fibrillation patients, NOAC have been highly adopted into practice, becoming more frequently prescribed than VKA in Europe and North America. Worldwide, however, a large proportion of patients remain undertreated, particularly in Asia and North America. (Global Registry on Long-Term Oral Antithrombotic Treatment in Patients With Atrial Fibrillation [GLORIA-AF]; NCT01468701
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