Sugarcane bagasse as exclusive roughage for dairy cows in smallholder livestock system

Gleidiana Amelia Pontes de Almeida,Marcelo de Andrade Ferreira,Janaina de Lima Silva,Juana Catarina Cariri Chagas,Antonia Sherlanea Chaves Veras,Leonardo Jose Assis de Barros,Gledson Luiz Pontes de Al 아세아·태평양축산학회 2018 Animal Bioscience Vol.31 No.3

Objective: The study aimed to evaluate sugarcane bagasse as roughage in lactating cow on feed intake, digestibility, ingestive behavior, milk production and composition, and microbial protein synthesis. Methods: Ten Girolando cows at initial body weight of 450±25.6 kg and at 143.7±30.7 days in milk were assigned in two 5×5 Latin square designs. Five 21-day experimental periods were adopted (1° to 14-day: diets adaptation period; 15° to 21-day: data collection and sampling period). The diets consisted of four different levels of sugarcane bagasse (45%, 50%, 55%, and 60%) and a control diet, commonly adopted in the region, based on spineless cactus (25% sugarcane bagasse), formulated to meet 12 kg/d milk yield. Results: The dry matter (DM), organic matter (OM), and total digestible nutrients intakes and DM and OM digestibilities observed for 45% and 50% bagasse inclusion were similar to control diet, while that 55% and 60% bagasse inclusion were lower. Cows fed control diet, and bagasse diets of 45%, and 50% levels had the nutritional requirements attended, that guaranteed 12 kg/d of milk yield. The crude protein intake and digestibility of cows fed 45%, 50%, and 55% of bagasse inclusion were similar to control diet. The neutral detergent fiber (NDF) intake and digestibility differ for all bagasse diets related to control diet, while the non-fiber carbohydrates intake and digestibility for cows fed 45% of bagasse were similar for control diet. The intakes and digestibilities of nutrients decreased linearly in function of bagasse inclusion; NDF and indigestible NDF intakes did not vary. The ruminating time, feeding and rumination efficiency, microbial protein synthesis and milk yield decreased linearly with sugarcane bagasse inclusion. Conclusion: Sugarcane bagasse decreases milk production; however, its inclusion level in between 45% to 50% associated to concentrate could replace diets based on spineless cactus for crossbred dairy cow's producing 12 kg/d of milk.

Wind velocity field during thunderstorms

Ponte, Jacinto Jr.,Riera, Jorge D. Techno-Press 2007 Wind and Structures, An International Journal (WAS Vol.10 No.3

Wind action is a factor of fundamental importance in the structural design of light or slender constructions. Codes for structural design usually assume that the incident mean wind velocity is parallel to the ground, which constitutes a valid simplification for frequent winds caused by meteorological phenomena such as Extratropical Storms (EPS) or Tropical Storms. Wind effects due to other phenomena, such as thunderstorms, and its combination with EPS winds in so-called squall lines, are simply neglected. In this paper a model that describes the three-dimensional wind velocity field originated from a downburst in a thunderstorm (TS) is proposed. The model is based on a semi empirical representation of an axially-symmetrical flow line pattern that describes a stationary field, modulated by a function that accounts for the evolution of the wind velocity with time. The model allows the generation of a spatially and temporally variable velocity field, which also includes a fluctuating component of the velocity. All parameters employed in the model are related to meteorological variables, which are susceptible of statistical assessment. A background wind is also considered, in order to account for the translational velocity of the thunderstorm, normally due to local wind conditions. When the translation of the TS is caused by an EPS, a squall line is produced, causing the highest wind velocities associated with TS events. The resulting vertical velocity profiles were also studied and compared with existing models, such as the profiles proposed by Vicroy, et al. (1992) and Wood and Kwok (1998). The present model predicts horizontal velocity profiles that depend on the distance to the storm center, effect not considered by previous models, although the various proposals are globally compatible. The model can be applied in any region of interest, once the relevant meteorological variables are known, to simulate the excitation due to TS winds in the design of transmission lines, long-span crossings, cable-stayed bridges, towers or similar structures.

Soil and Climate Effects on Cowpea Rhizobial Diversity in Pernambuco

Thiago Pontes Lira,Amanda Cordeiro Melo Souza,Tamiris Kempner,Mario Andrade Lira Junior 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

La muerte enamorada. Amor y muerte en la literatura espa?ola de los siglos XVIII y XIX

Rafael Pontes Velasco 한국스페인어문학회 2005 스페인어문학 Vol.0 No.37

Entre las múltiples preocupaciones que los escritores españoles de los siglos XVIII y XIX abordaron en sus obras, cabe preguntarse por qué elegimos el estudio del "amor" y la "muerte". Sencillamente, porque la conjunción de estos dos conceptos implica una belleza equivalente a la armonía perfecta. Es decir, su unión indisoluble apunta a una suerte de compenetración cósmica, anhelada a lo largo de la historia de la Humanidad. La relación existente entre el amor y la muerte conlleva, en la mayor parte de las letras orientales y occidentales, la asunción de un orden primigenio y, con él, la posibilidad de otra vida fronteriza, anterior o posterior a la perceptible y conocida. Esa otra vida, enlazada íntimamente con la génesis literaria, trataremos de analizarla a través de la semántica profunda de los siguientes textos españoles de los siglos XVIII y XIX: Noches lúgubres (1774), de José Cadalso; Los amantes de Teruel (1836), de Juan Eugenio Hartzenbusch; El estudiante de Salamanca (1839), de José de Espronceda; El diablo mundo (1840), también de José de Espronceda; Don Juan Tenorio (1844), de José Zorrilla; y Rimas (1867), de Gustavo Adolfo Bécquer. El comentario de estas obras no se detendrá en el género literario de las mismas ni en sus peculiaridades formales. En cambio, adoptaremos una óptica centrada en los hallazgos de algunos de los libros más radicales a la hora de afrontar la comunión del amor y la muerte en la literatura, como Justine o los infortunios de la virtud (1791), del Marqués de Sade; Más allá del principio del placer (1920), de Sigmund Freud; El erotismo (1957), de Georges Bataille; y Pensamiento y cultura en la antigua India (1995), de Ana Agud.

Al filo de Guillermo Samperio: un escritor inclasificable

( Rafael Pontes Velasco ) 고려대학교 스페인·라틴아메리카연구소 2008 스페인라틴아메리카연구 Vol.1 No.-

El proposito de este articulo reside en una doble vertiente de difusion y analisis. Por una parte, presentaremos a Guillermo Samperio, uno de los escritores mexicanos de mayor trascendencia y posibilidades de perduracion en la literatura latinoamericana contemporanea. Por otra, trazaremos pinceladas criticas sobre su obra, una de las mas arriesgadas en el aspecto formal e innovadoras en cuanto a tematica de los ultimos tiempos, desde una perspectiva cronologica y desde diferentes generos literarios. Asumiremos para ello una metodologia que combine el rigor filologico con la aceptacion de las dificultades implicitas que supone abordar lo inclasificable de una apuesta unica y en continuo crecimiento, con la conviccion de que la indudable calidad de la creacion de Samperio merece un puesto destacado y memorable en la historia literaria de nuestra era. El presente estudio abarcara desde el primer libro de cuentos de nuestro autor, Cuando el tacto toma la palabra (1974), hasta el ultimohasta la fecha, La guerra oculta (2008), revisando el resto de titulos significativos de una amplia trayectoria en narrativa, lirica y ensayistica. Dada la versatil y ya extensa bibliografia samperiana, procuraremos aportar una vision global de una propuesta tan brillante en la escritura de largo aliento como maestra y definitoria en los marcos de la ficcion breve. Bienvenidos al fascinante mundo de Guillermo Samperio, del que resulta tan accesible su entrada como imposible su salida.

El cine, Cagliostro y la generacin del 27

Rafael Pontes Velasco 한국스페인어문학회 2007 스페인어문학 Vol.0 No.45

Cagliostro (1934), “novela visual” del poeta Vicente Huidobro, se relaciona con la generación del 27 en tanto asume y personaliza los postulados filosóficos que los artistas de la época mantenían en torno al cine y la literatura. Anticipadamente, el principal promotor del creacionismo apoyó la consolidación del interés de La Gaceta literaria por el séptimo arte. El propósito de nuestro artículo reside en reconstruir el puente que Cagliostro pudo haber diseñado entre Huidobro y los autores españoles del 27, propiciado por una inspiración vanguardista común. Estructuramos nuestra reflexión en cuatro partes. En primer lugar, proponemos una sinopsis argumental de Cagliostro y un comentario del mismo, a la luz de varios hallazgos estéticos de Luis Buñuel, Salvador Dalí, Federico García Lorca y Rafael Alberti. A continuación, analizamos algunas de las técnicas cinematográficas de la novela, teniendo en cuenta sus procedimientos literarios. En tercer lugar, realizamos una digresión interpretativa en torno al simbolismo de “los ojos” en el cine, y por tanto en la literatura de Huidobro y la generación del 27. Finalmente, damos paso a las conclusiones valorativas y señalamos el posible alcance profético que la vinculación primigenia entre la magia y la imagen suscitaba en los primeros artistas de vanguardia.

La muerte enamorada. Amor y muerte en La Literatura espanola de Los siglos 18 y 19

( Rafael Pontes Velasco ) 한국스페인어문학회 2005 스페인어문학 Vol.0 No.37

El cine, Cagliostro y La generacion del 27

( Rafael Pontes Velasco ) 한국스페인어문학회 2007 스페인어문학 Vol.0 No.45

Wind velocity field during thunderstorms

Jacinto Ponte Jr.,Jorge D. Riera 한국풍공학회 2007 Wind and Structures, An International Journal (WAS Vol.10 No.3

Wind action is a factor of fundamental importance in the structural design of light or slender constructions. Codes for structural design usually assume that the incident mean wind velocity is parallel to the ground, which constitutes a valid simplification for frequent winds caused by meteorological phenomena such as Extratropical Storms (EPS) or Tropical Storms. Wind effects due to other phenomena, such as thunderstorms, and its combination with EPS winds in so-called squall lines, are simply neglected. In this paper a model that describes the three-dimensional wind velocity field originated from a downburst in a thunderstorm (TS) is proposed. The model is based on a semi empirical representation of an axially-symmetrical flow line pattern that describes a stationary field, modulated by a function that accounts for the evolution of the wind velocity with time. The model allows the generation of a spatially and temporally variable velocity field, which also includes a fluctuating component of the velocity. All parameters employed in the model are related to meteorological variables, which are susceptible of statistical assessment. A background wind is also considered, in order to account for the translational velocity of the thunderstorm, normally due to local wind conditions. When the translation of the TS is caused by an EPS, a squall line is produced, causing the highest wind velocities associated with TS events. The resulting vertical velocity profiles were also studied and compared with existing models, such as the profiles proposed by Vicroy, et al. (1992) and Wood and Kwok (1998). The present model predicts horizontal velocity profiles that depend on the distance to the storm center, effect not considered by previous models, although the various proposals are globally compatible. The model can be applied in any region of interest, once the relevant meteorological variables are known, to simulate the excitation due to TS winds in the design of transmission lines, long-span crossings, cable-stayed bridges, towers or similar structures.

Retrospective clinical and radiographic evaluation of restored endodontically treated teeth

Garcia Paula Pontes,Cappoani Aline,Schelbauer Ricardo Susin,Correr Gisele Maria,Gonzaga Carla Castiglia 대한치과보존학회 2020 Restorative Dentistry & Endodontics Vol.45 No.4

Objectives: The aim of this study was to perform a clinical and radiographic analysis of endodontically treated teeth (ETT) restored with cast metal posts (CMPs) or prefabricated glass fiber posts (GFPs) and crowns. Materials and Methods: Fifty ETT were restored with 25 CMPs and 25 GFPs at a private dental clinic between 2001 and 2016. The restorations consisted of 12 all-ceramic crowns, 31 metal-ceramic crowns, and 7 composite resin crowns. Demographic data, type of teeth, type of post-and-core system, time of placement, crown restorations, the number of proximal contacts, the type of antagonist, and reports of any complications after post-and-core placement were recorded for each patient. Assessments were performed at baseline (radiographic) and follow-up (radiographic and clinical). Data were analyzed by the McNemar test, the Pearson χ2 test, and Kaplan-Meier survival curves (α = 0.05). The mean follow-up was 67.6 months. Results: No significant difference was observed for any of the radiographic parameters when the baseline and final radiographs were compared. In the clinical evaluation, anatomical form (p = 0.009) and occlusion (p = 0.001) showed significant differences according to the type of crown restoration; specifically, metal-ceramic and all-ceramic crowns outperformed composite resin crowns. Conclusions: CMPs and GFPs showed favorable results for restoring ETT after 6 years of follow-up. All-ceramic and metal-ceramic crowns showed higher survival rates and better clinical outcomes.