Variaciones del índice de cono en suelo movilizado posterior al tráfico de un tractor equipado con dos tipos de neumáticos y a cuatro velocidades de desplazamiento

The tractor is one of the machines that more traffics over the soil during the processes involving agricultural production. The interaction tractor/soil is made by the tires which, in most of the cases, are pneumatic. The tire type and the tractor travel speed, interfere directly on the pressure over the soil. One of the techniques employed to evaluate the alterations that tractor traffic causes in the soil is to measure its Cone Index. The aim of this research was to evaluate the same Cone Index alterations caused by an agricultural tractor equipped with both radial tires and bias ply tires, trafficking mobilized soil in four different travel speeds. The experiment was performed in a LATOSSOLO VERMELHO, located 22°51' S, 48°25'W and 770 m of altitude, in Botucatu-SP, Brazil. The soil mobilization was performed with a chisel plow and a disc arrow. The traction was accomplished with a John Deere tractor, model 6600, with 88 kW of power and 6,723 kg. Equipment requiring a force of 25kN was traced by the tractor draw bar. The experimental design was in randomized blocks with 4 × 2 factorial arrangements, with two distinct treatments corresponding to the types of tires (bias and radial) and the four travel speeds, with six replications. There were selected the following speeds: 3.5, 3.9, 5.1 and 5.9 km h-1. To determine the soil resistance, there was utilized MSSU - Mobile Soil Sampling Unit, with which the Cone Index was obtained in layers from 0-100, 100-200, 200-300, 300-400, 400-500 and over 500 mm deep. The Cone Index where evaluated in areas with non contact between tire and soil (ICn) and in the tire footprint track (ICp). There were calculated the Cone Index increments caused by the tractor tire (AIC) and the results showed that as the tractor travel speed increased, there were observed decrements in the medium values of cone index. The radial tire provided smaller values of the Cone Index in the superficial layer of the soil (0 to 100 mm) in relation to the bias ply tire, when the speed was approximately 6 km h-1. The increment in the Cone Index, promoted by the tractor, was more intense in the first 200 mm depth, but it also reached the layer from 200 to 300 mm.

Influencia del nivel de inserción ósea del diente soporte en el desplazamiento de PPR de extremidad libre mandibular asociada al implante oseointegrado

The rehabilitation with mandibular distal extension removable partial dentures (DERPD) is complex and the use of implants has been improving the functioning of this approach. The insertion bony level around of the last support tooth is an aggravating factor, since it can harm the longevity of the treatment. Thus, the aim of this research was to evaluate the displacement tendency of a mandibular DERPD associated to an implant, with different insertion bony levels and different connections between the RPD and the support tooth, by finite element analysis. Eight models were made: MA - DERPD, incisal rest, no bony loss; MB - DERPD, distal plate, no bony loss; MC - DERPD, incisal rest, no bony loss, with implant and ERA system; MD - DERPD, distal plate, no bony loss, with implant and ERA system; ME - DERPD, incisal rest, bony loss; MF - DERPD, distal plate, bony loss; MG - DERPD, incisal rest, bony loss, with implant and ERA system; MH - DERPD, distal plate, bony loss, with implant and ERA system. Loads of 50 N in each peak were applied. Displacement maps were obtained and showed that implant favors this association and the bony loss harms the prognostic of the prosthesis. It is concluded that: the introduction of the implant with ERA system reduced the displacement tendency of the tooth and supporting structures; introduction of distal plate reduced the movement tendency of the support tooth; the decrease of the periodontal support didn't influence significantly the displacement tendency of the models with distal plate distal, but it influenced the models with distal incisal rest.

A gestão da inclusão escolar na rede municipal de São Paulo: algumas considerações sobre o Programa Inclui

Para análise da questão da gestão política do processo de inclusão escolar, este artigo aborda o movimento da rede municipal de São Paulo em direção à uma escola inclusiva através da oferta de respostas educativas aos alunos com necessidades educacionais especiais. Assim, descreve o Programa Inclui, em andamento na rede municipal de ensino, que busca organizar, através de projetos, a construção e consolidação de um sistema inclusivo, na perspectiva de estar articulado com as práticas e ações político-pedagógicas que ocorrem desde a educação infantil ao ensino médio e se concentra nas ações necessárias para o atendimento às necessidades educacionais especiais para que se garanta a desejável relação entre educação comum e especial no enfrentamento das dificuldades do processo de ensino e aprendizagem daqueles que precisam de recursos, técnicas, metodologias diferenciadas para que sua trajetória escolar esteja garantida, no cotidiano, assim como está garantida no aspecto legal.

Rumos da história contada pelos quinhentistas portugueses

Pós-graduação em História - FCHS

Aquisição e/ou aprendizagem: a constituição da subjetividade e identidade de uma criança falante de português brasileiro e de espanhol

Pós-graduação em Linguística e Língua Portuguesa - FCLAR

Reestructuración urbana y metropolitana de la Ciudad de Puebla, México, último ciclo: síntesis de las transiciones económica y geográfica globales : Un recorrido transversal por las escalas nacional, regional y metropolitana

Pós-graduação em Geografia - FCT

La crisis restructral del capitalismo y sus repercusiones

This article analyzes the structural crisis of capitalism that began when the speculative home mortgage bubble burst in the United States in 2007, and the repercussions of that phenome- non. The current crisis is the outcome of a series of processes unleashed as a result of the crisis of overaccumulation of capital in the 1970s, which generated, on the one hand, the conditions for financial capital’s dominance and, on the other, a new frontier for the accumulation of cap- ital in East Asia, especially in China. The crisis calls into question the centrality of the North American economy, but that does not necessarily mean the shift of capitalism’s hegemonic cen- ter to Asia. Here we will argue that we are headed toward a multipolar world.

La enseñanza de la lengua española en cursos de profesorado a estudiantes brasileños:el foco en la gramática

Esta comunicación se enfoca en la enseñanza de la Lengua Española como Lengua Extranjera; en especial, en la enseñanza de la Gramática en cursos de Profesorado en Lengua Española en Brasil, los cuales suelen otorgar una doble titulación lingüística: los estudiantes se reciben de profesores de Lengua Portuguesa y de una Lengua Extranjera (LE), por ejemplo, Lengua Española. En estos cursos –y específicamente en la Faculdade de Ciências e Letras de Araraquara FCLAr y UNESP-, en la enseñanza de la Lengua Española, la gramática es trabajada de un modo lineal y secuencial, desde el primer año hasta el cuarto y último año de la carrera. En general, lo que se observa en el cuarto año, momento de la focalización en las estructuras morfosintácticas más avanzadas, es que todavía persisten dificultades lingüísticas de las estructuras básicas de uso y funcionamiento de la Lengua Española, lo cual implica un desplazamiento teórico-metodológico del quehacer didáctico del profesor, el cual tiene que adaptarse a las necesidades de cada grupo, una vez que el aprendizaje de la gramática es imprescindible en la formación de estos estudiantes en su formación académico-profesional. Utilizando el desarrollo de la reflexión crítica sobre el proceso de aprendizaje de la gramática de la Lengua Española/LE, articulado al trabajo futuro del estudiante como profesor, se pasa a trabajar con diversificadas estrategias didáctico-metodológicas, las cuales han resultado en un notable aprendizaje de la gramática, así como también en el rol de los actores en este proceso de enseñanza-aprendizaje.

Rehabilitacion oral sobre implantes instalados por medio de la tecnica sin colgajo (flapless) y carga inmediata

The oral rehabilitation with osseointegrated implants is a well-documented treatment with high rate of success. Nevertheless, demands related to treatment time and surgical technique began to appear. In this context, the procedure of immediate loading in which the dental prosthesis is placed right after implant surgery has become a constant practice. Although immediate loading has been an important advance, minimally invasive procedures, such as implant placement without raising a mucoperiosteal flap (flapless) are increasingly being performed. Association of immediate loading with the flapless technique improves acceptance by patients and professionals, because no suturing is required. Moreover, it reduces swelling, bleeding during and after surgery, postoperative pain, surgery time, discomfort and hematoma, as well as the need for postoperative medication. These characteristics ease the stages of rehabilitation soon after implant placement, cooperating with prosthodontist's work. Thus, the proposal of this study is to present a clinical case of oral rehabilitation with osseointegrated implants and fixed prosthesis in both arches, in which the flapless technique was applied, followed by immediate loading. It will discuss the diagnosis, prosthetic planning, surgical/prosthodontic procedures and follow-up for 20 months.

Modelo de conductancia hidráulica de la dentina humana ex vivo

The main objective of this work was to mount and test an experimental model to measure the hydraulic conductance of ex vivo dentin. Seventeen healthy third molars, with indication of extraction of healthy donors aged between 15 and 30 years were obtained by informed consent. After cleaning them, disinfecting them, including them in resin epoxy and cutting them, there were 17 samples of dentin, corresponding to a disk of resin with a coronal section of tooth showing the dentin exposed on both sides of it. Three machines to measure the hydraulic conductance of the dentin were assembled according to the description of the model of Pashley. Samples were installed in a Chamber of diffusion, connected by using silicone tubes to a graduated transfer pipette and a 20cm water column. Through the displacement of a bubble of water in the inside of the pipette, the hydraulic conductance of each sample was measured 3 times on the 14th, 21st, 28th and 35th day post extraction. The data were tabulated and analyzed statistically. There is no SS difference in the rate of flow of a measured sample in the three machines (p=0.5937). There is no SS difference in measurements of the hydraulic conductance of 13 samples of human dentin measured in days 14, 21, 28 and 35 postextraction (p=0.0704). It is possible to mount an experimental model to study the hydraulic conductance of dentin ex vivo, based on the model of Pashley. The model seems to be reliable, but more research is needed in order to validate its reliability.

Juventude, drogas e biopolítica

In this article, we tackle the issue of youth and drugs as something linked to biopower and biopolitics, both concepts developed by Michael Foucault. Youth and drugs are taken and analyzed in situations involving the management of crime linked to the risks and deviations from the law, abuse and dependence. The youth; irreverent, courageous, healthy, idealistic, and that wanted to change the world for the better as we have seen in the past, is now strongly related to violence, dangerous activities, moral and social risks, drug addiction, criminality, and others negative images. To deal with these young people, tolerance and small punishments of yore are not enough anymore. The young people emerge as a segment of the population subject to various actions and programs. The drugs now are seen as matters of security and public health. There is a shifting and repositioning in the discourse about the young - from minor, drugged, and criminal to lawbreaker, user and drug addict. The change is subtle, but represents a modulation in the devices of social control. Beyond the consent of the young to get rid of drugs, there is a search for the creation of a wide area of monitoring of their behavior through the activation of community protection networks. The belief that the young are more impressionable and vulnerable, and that action on the cause of the problem or risk reduction are the most efficient ways of management, taking responsibility away from personal and family sphere and transferring it to the State, contributes to the increasing control of young people nowadays.

A produção imobiliária e a reestruturação das cidades médias: Londrina e Maringá/PR

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atelieristas: da célula atelier ao corpo atelier

Pós-graduação em Artes - IA

Sob o domínio da metáfora: transposição de imagens poéticas (em) entre Edgar Allan Poe e René Magritte

Pós-graduação em Letras - IBILCE