9 research outputs found
Algorithm for Finding Large Number Integer Factors Through a Modification of Newton's Binomial
No full textEste trabajo presenta un algoritmo para la obtención de un factor de un número entero de gran cantidad de digitos decimales, mediante una modificación del Binomio de Newton propuesta por el autor. Esta modificación se basa en el desarrollo de una forma diferente de hallar potencias enésimas de números enteros.This work presents an algorithm for obtaining a factor of a integer number with large amount of decimal digits, by means of a Newton´s Binomial modification proposed by the author. This modification is based on the development of a different way of finding nth powers of integers
A REPRESENTAÇÃO E A RESSIGNIFICAÇÃO DO TRAUMA EM SOLITO, A MEMOIR, DE JAVIER ZAMORA
No full textEste artigo tem por objetivo analisar a representação e a ressignificação do trauma em Solito, a memoir, de Javier Zamora. O livro consiste em um relato autobiográfico em que o autor narra seu deslocamento de El Salvador aos Estado Unidos, aos nove anos de idade, para reunir-se com os pais, que para lá emigraram quatro anos antes. Guiado por coiotes e sem a companhia de familiares, ele atravessa a fronteira na terceira tentativa, após enfrentar fome, sede, frio e detenção pela patrulha de fronteira estadunidense. O livro foi escrito, segundo o autor, como uma forma de superar o trauma. Em nossa análise, situamos a obra no conjunto de narrativas denominadas escritas de si (Foucault, 2004; Lejeune, 2008, Hees, 2013) e, em seguida, o analisamos com foco nas experiências vividas pelo narrador, abordando especificamente a questão da superação do trauma com base nas perspectivas teóricas de Cathy Caruth(1995), Márcio Seligmann- Silva (2008) e Jhonathan Cohen (1985).
THE REPRESENTATION AND RESIGNIFICATION OF TRAUMA IN SOLITO, A MEMOIR, BY JAVIER ZAMORA
This article aims to analyze the representation and resignification of trauma in Javier Zamora's Solito, a Memoir is an autobiographical account in which the author recounts his journey from El Salvador to the United States at the age of nine to reunite with his parents, who had emigrated there four years earlier. Guided by coyotes and unaccompanied, he crosses the border on his third attempt, after facing hunger, thirst, cold, and detention by the U.S. Border Patrol. According to the author, the book was written as a way to overcome trauma. In our analysis, we place the work within the set of narratives known as self-writing (Foucault, 2004; Lejeune, 2008, Hees, 2013), and then analyze it focusing on the experiences lived by the narrator, specifically addressing the issue of overcoming trauma based on the theoretical perspectives of Cathy Caruth (1995), Márcio Seligmann-Silva (2008), and Jhonathan Cohen (1985)
Diseño de explotación y cierre de mina de la cantera “La Esperanza”, ubicada en la parroquia Gabriel Ignacio de Veintimilla, cantón Guaranda, provincia de Bolívar.
No full textEste proyecto está relacionado con el diseño de explotación de la cantera “La Esperanza”, ubicada en la parroquia Gabriel Ignacio de Veintimilla, cantón Guaranda, provincia de Bolívar, que tiene como objetivo asegurar a la administración del gobierno local, una producción total y una utilización técnica de los materiales pétreos existentes en el área minera. Para lograr este propósito, el proyecto toma en cuenta los principales parámetros, técnicos, operativos,
económicos- financieros y socio- ambientales, dado que todos ellos tienen una fuerte incidencia en las actividades de producción minera, así como la información geológica y geotécnica, generada por el autor y ensayos de laboratorio.
Los parámetros técnicos que se consideran para el diseño de explotación de esta cantera son: el número de bancos, sus elementos geométricos, profundidad de la cantera, tasa de producción diaria, y el tamaño de los fragmentos de roca. Las variables económicas están relacionadas con la inversión (capital), costos generales, la reducción de costos por la actividad. Los parámetros sociales y ambientales son muy importantes pues tienen que ser cuidadosamente manejados para asegurar el proyecto y garantizar beneficios, tanto para la administración de gobierno local como para la comunidad.
El proyecto se ha gestionado totalmente, pues el volumen de reservas de material pétreo, la tasa de producción diaria, la inversión y la rentabilidad están muy bien equilibrados para garantizar una adecuada factibilidad y un proceso de operación técnica.This project is related to the exploitation design of the “La Esperanza” quarry, located in the Gabriel Ignacio de Veintimilla parish, Guaranda canton, province of Bolívar, which aims to ensure the local government administration, a total production and a technical use of existing stone materials in the mining area. To achieve this purpose, this project takes into account the main technical, operational, economicfinancial and socio-environmental parameters, since all of them have a strong impact on mining production activities, as well as the geological and geotechnical information generated by the author
and laboratory tests. The technical parameters that are considered for the exploitation design of this quarry are: the number of banks, their geometric elements, depth of the quarry, daily production rate, and the size of the rock
fragments. The economic variables are related to the investment (capital), general costs, the reduction of costs for the activity. The social and environmental parameters are very important because they have to be carefully managed to ensure the project and guarantee benefits, both for the local government administration and for the community.
The project has been fully managed, since the volume of stone material reserves, the daily production rate, investment and profitability are very well balanced to guarantee adequate feasibility and a technical operation process
H. Marcuse. Cultura y represión, una renuncia a la felicidad
No full textEste trabajo analiza el concepto de cultura afirmativa, introducido por Herbert Marcuse, y lo contrasta con otro concepto más amplio de cultura que este filósofo conceptualiza, producto de sus reflexiones en torno a Freud y su obra El malestar en la cultura. En esa perspectiva, se muestra cómo, desde Marcuse, es posible pensar, al menos teóricamente, en una cultura no represiva
Review—Micro and Nano-Engineering Enabled New Generation of Thermoelectric Generator Devices and Applications
No full textAs we are advancing our world to smart living, a critical challenge is increasingly pressing - increased energy demand. While we need mega power supplies for running data centers and other emerging applications, we also need instant small- scale power supply for trillions of electronics that we are using and will use in the age of Internet of Things (IoT) and Internet of Everything (IoE). Such power supplies must meet some parallel demands: sufficient energy supply in reliable, safe and affordable manner. In that regard, thermoelectric generators emerge as important renewable energy source with great potential to take advantage of the widely-abundant and normally-wasted thermal energy. Thanks to the advancements of nano-engineered materials, thermoelectric generators' (TEG) performance and feasibility are gradually improving. However, still innovative engineering solutions are scarce to sufficiently take the TEG performance and functionalities beyond the status-quo. Opportunities exist to integrate them with emerging fields and technologies such as wearable electronics, bio-integrated systems, cybernetics and others. This review will mainly focus on unorthodox but effective engineering solutions to notch up the overall performance of TEGs and broadening their application base. First, nanotechnology's influence in TEGs' development will be introduced, followed by a discussion on how the introduction of mechanically reconfigurable devices can shape up the emerging spectrum of novel TEG technologies. (C) The Author(s) 2017. Published by ECS
Concreto a base de cenizas volantes activadas alcalinamente, modificado con nanopartículas de óxido de silicio y dióxido de titanio
No full textTrabajo de investigaciónEstudio de la elaboración de un concreto de activación alcalina de cenizas volantes tipo F y el mejoramiento de su resistencia a la compresión mediante la adición de nano partículas de TiO2 en proporción al peso de la ceniza volante, su objetivo es comparar las características físicas y mecánicas de estas dos propuestas y demostrar los aportes de los nanomateriales a este tipo de materiales.PregradoIngeniero CivilINTRODUCCIÓN
1. GENERALIDADES
2. MARCO DE REFERENCIA
3. OBJETIVOS
4. METODOLOGÍA EXPERIMENTAL
5. RESULTADOS Y ANÁLISIS
6. CONCLUSIONES
7. RECOMENDACIONES
8. BIBLIOGRAFÍA
9. ANEXO
Randomized, Double-Blinded, Phase 2 Trial of WR 279,396 (Paromomycin and Gentamicin) for Cutaneous Leishmaniasis in Panama
No full textIn this randomized, double-blinded Phase 2 trial, 30 patients with Leishmania panamensis cutaneous leishmaniasis were randomly allocated (1:1) to receive once daily topical treatment with WR 279,396 (15% paromomycin + 0.5% gentamicin) or Paromomycin Alone (15% paromomycin) for 20 days. The index lesion cure rate after 6 months follow-up was 13 of 15 (87%) for WR 279,396 and 9 of 15 (60%) for Paromomycin Alone (P = 0.099). When all treated lesions were included, the final cure rate for WR 279,398-treated patients was again 87%, but the final cure rate for Paromomycin Alone-treated patients was 8 of 15 (53.3%; P = 0.046). Both creams were well tolerated with mild application site reactions being the most frequent adverse event. The increased final cure rate in the WR 279,396 group in this small Phase 2 study suggests that the combination product may provide greater clinical benefit than paromomycin monotherapy against L. panamensis cutaneous leishmaniasisIn this randomized, double-blinded Phase 2 trial, 30 patients with Leishmania panamensis cutaneous leishmaniasis were randomly allocated (1:1) to receive once daily topical treatment with WR 279,396 (15% paromomycin + 0.5% gentamicin) or Paromomycin Alone (15% paromomycin) for 20 days. The index lesion cure rate after 6 months follow-up was 13 of 15 (87%) for WR 279,396 and 9 of 15 (60%) for Paromomycin Alone (P = 0.099). When all treated lesions were included, the final cure rate for WR 279,398-treated patients was again 87%, but the final cure rate for Paromomycin Alone-treated patients was 8 of 15 (53.3%; P = 0.046). Both creams were well tolerated with mild application site reactions being the most frequent adverse event. The increased final cure rate in the WR 279,396 group in this small Phase 2 study suggests that the combination product may provide greater clinical benefit than paromomycin monotherapy against L. panamensis cutaneous leishmaniasi
(Caryocaraceae) in preserved and degraded Cerrado areas in Brazil
No full textThis study aimed to characterize the reproductive system and determine the importance of pollinators for fruit production of C. brasiliense, an economically important tree, in preserved and degraded Cerrado areas in southeastern Brazil. For this purpose, we performed pollinator exclusion experiments to determine the frequency of self- and cross-pollination, and to determine fruit set. In general, fruit set was extremely low: only 2.92% and 2.71% of the flowers developed into fruits in the degraded and preserved areas, respectively. Fruit set by manual cross-pollination and natural (open) pollination were higher than self-pollination in both areas. Pollen deposition was significantly higher at night and in the preserved area, although a relatively high amount of pollen grains found in the stigmas during the day. The number of ripened and aborted seeds did not differ among areas, but fruits and seeds were heavier in the degraded area than in the preserved area. The abortion level was very high (64.5%), which may be related to low pollen quality due to selfing. Our study presents evidence that Cerrado degradation affects the reproductive biology of C. brasiliense, but whether such effect is a consequence of pollinator decline in degraded areas remains to be determined.The presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Differences by country in academic production indexed in Scopus on intellectual property and innovation systems (2001-2021)
No full textThis paper aims to establish what are the differences by country in scientific production on intellectual property and innovation systems between 2001 and 2021? We use text mining, non-parametric statistics, and two specialized software (Bibliometrix and VosViewer) to indicate the differences in scientific production by country on innovation systems and intellectual property. We found that scientific production in the Asia Pacific and North American countries is, on average, higher than in Eastern Europe, the Middle East and North Africa, and Sub-Saharan Africa. These last three regions do not exhibit statistically significant differences among themselves. On the other hand, the countries of Western Europe exceed the production levels of the countries of Eastern Europe and Sub-Saharan Africa. We identified that the topics in the scientific production of the most productive countries were related to case studies, technology transfer, triple helix, regional innovation systems, governance, open innovation, competitiveness, and innovation policies
