Educação a distância e efeitos em cadeia

This article is divided into two parts. The first presents two abstract arguments that constitute the starting point for the development of the second part, which is directed towards discussing some aspects of the distance learning policies, i.e., the role of public authorities in encouraging and shaping this type of education. First of all, it is intended to establish some assumptions to understand the emergence of this phenomenon and some of its conditioning factors and consequences; then to suggest some analytical tools to allow us to reflect on public policy in this area.

Influência da embalagem de polietileno de baixa densidade e da temperatura na conservação do repolho minimamente processado

This research studied the effect of low density polyethylene packaging and storage temperature on the preservation of fresh-cut (minimally processed) cabbage. The cabbages, previously cooled to a temperature of 10 ºC, were selected, washed, cut in four parts (with the central stalk removed), sanitized, cut in strips, rinsed, put in the centrifuge, weighed and stored in plastic packaging of low density polyethylene (70 µm), and then stored in cold chambers at temperatures of 1 and 10 ºC for 20 days. The following aspects were evaluated: carbon dioxide, oxygen and ethylene in the internal atmosphere of the package as well as, pH, titratable acidity, total soluble solids, vitamin C, loss of fresh mass and the total soluble solids/acidity in the fresh-cut cabbage ratio. The experimental design was entirely casual, with three repetitions. The analysis parameters, except for the vitamin C, loss of fresh mass and ethylene, presented significant variation between the temperatures and days of storage. The cabbage stored at a temperature of 1 ºC presented a shelf life of around 15 days, significantly higher than that stored at 10 ºC. At this temperature, on the 8th day of storage, the product was completely decayed, unfit for commercialization or consumption.

Projeto de um cortador de base para colhedora de cana-de-açúcar utilizando otimização matemática

A base-cutter represented for a mechanism of four bars, was developed using the Autocad program. The normal force of reaction of the profile in the contact point was determined through the dynamic analysis. The equations of dynamic balance were based on the laws of Newton-Euler. The linkage was subject to an optimization technique that considered the peak value of soil reaction force as the objective function to be minimized while the link lengths and the spring constant varied through a specified range. The Algorithm of Sequential Quadratic Programming-SQP was implemented of the program computational Matlab. Results were very encouraging; the maximum value of the normal reaction force was reduced from 4,250.33 to 237.13 N, making the floating process much less disturbing to the soil and the sugarcane rate. Later, others variables had been incorporated the mechanism optimized and new otimization process was implemented .

Uso de redes neurais artificiais na identificação de vocalização de suínos

Animal welfare has been an important research topic in animal production mainly in its ways of assessment. Vocalization is found to be an interesting tool for evaluating welfare as it provides data in a non-invasive way as well as it allows easy automation of process. The present research had as objective the implementation of an algorithm based on artificial neural network that had the potential of identifying vocalization related to welfare pattern indicatives. The research was done in two parts, the first was the development of the algorithm, and the second its validation with data from the field. Previous records allowed the development of the algorithm from behaviors observed in sows housed in farrowing cages. Matlab® software was used for implementing the network. It was selected a retropropagation gradient algorithm for training the network with the following stop criteria: maximum of 5,000 interactions or error quadratic addition smaller than 0.1. Validation was done with sows and piglets housed in commercial farm. Among the usual behaviors the ones that deserved enhancement were: the feed dispute at farrowing and the eventual risk of involuntary aggression between the piglets or between those and the sow. The algorithm was able to identify through the noise intensity the inherent risk situation of piglets welfare reduction.

As contribuições de Seymour Fisher para os estudos em imagem corporal

Universidade Estadual de Campinas . Faculdade de Educação Física

Metodologia de ensino em educação fisica : contribuições de Vygotsky, para as reflexões sobre um modelo pedagogico

Universidade Estadual de Campinas. Faculdade de Educação Física

A disciplina recreação e lazer no curriculo de formação de profissionais de Educação Fisica : o que dizem e fazem professores em Universidade do Nordeste do Brasil

Universidade Estadual de Campinas . Faculdade de Educação Física

Metodologia para a suavização de dados biomecanicos por função não parametrica ponderada local robusta

Universidade Estadual de Campinas. Faculdade de Educação Física

O papel da propriocepção no desenvolvimento da força muscular e da flexibilidade

Universidade Estadual de Campinas . Faculdade de Educação Física

Do corpo no tempo ao tempo do corpo : a ciencia e a formação profissional em Educação Fisica

Universidade Estadual de Campinas. Faculdade de Educação Física

Educação pelo lazer : valores que envolvem a relação adulto-criança

Universidade Estadual de Campinas . Faculdade de Educação Física

Análise da função pulmonar e análise cinemática da mobilidade tóracoabdominal em sujeitos tetraplégicos praticantes de rúgbi em cadeira de rodas

Universidade Estadual de Campinas. Faculdade de Educação Física

As roupas esportivas em Revista na cidade de Belo Horizonte (1929-1950) : moldes, recortes e costuras

Universidade Estadual de Campinas. Faculdade de Educação Física

A resilencia e a imagem corporal de adolescentes e adultos com mielomeningocele

Universidade Estadual de Campinas . Faculdade de Educação Física

Educação fisica no ensino fundamental : uma experiencia com base na educação fisica plural

Universidade Estadual de Campinas . Faculdade de Educação Física