Produção sementes de cenoura.

Palestra 14

Resinose do coqueiro: como identificar essa doença.

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Microstructure identification via detrended fluctuation analysis of ultrasound signals

We describe an algorithm for simulating ultrasound propagation in random one-dimensional media, mimicking different microstructures by choosing physical properties such as domain sizes and mass densities from probability distributions. By combining a detrended fluctuation analysis (DFA) of the simulated ultrasound signals with tools from the pattern-recognition literature, we build a Gaussian classifier which is able to associate each ultrasound signal with its corresponding microstructure with a very high success rate. Furthermore, we also show that DFA data can be used to train a multilayer perceptron which estimates numerical values of physical properties associated with distinct microstructures.Comment: Submitted to Phys. Rev.

Relação sexual do parasitismo por Haemonchus contortus em Caprinos (Capra hircus).

A hemoncose é uma doença parasitaria importante para pecuária, sendo os ovinos e caprinos as espécies que apresentam um maior acometimento. Esta enfermidade é provocada pelo nematódeo de gênero Haemonchus sp., parasito de abomaso, medindo entre 1 a 2,5 cm. Tratase da mais patogênica das helmintoses, provocando diminuição do ganho de peso, graves anemias, edemas de mucosa gástrica diminuindo a absorção de nutrientes, edemas externos denominados ?edema de barbela?, sendo sua sintomatologia característica de hemoncose, além de provocar óbito em graves parasitoses. O objetivo deste trabalho foi descrever a fauna parasitária abomasal e a relação sexual do parasitismo por Haemonchus contortus. Foram coletadas amostras abomasais de caprinos após o abate, sendo recuperado um total de 12460 helmintos. Os animais abatidos foram observados no pré abate e pós abate. No pré abate foram observados pelos arrepiados e sem brilho além de anemias grave. Após o abate foi observado o parasitismo abomasal por H. contortus e T. axei, onde a carga parasitária do H. contortus representou mais de 98% do parasitismo, sendo a relação entre macho e fêmea equivalente, além do parasitismo observou-se lesões de mucosa provocado pela fixação do nematóide ao órgão e carcaça pálida. Sexual relationship of parasitism by Haemonchus contortus in Goats (Capra hircus). Abstract: The hemoncose is an important parasitic disease to livestock, being the species sheep and goats the most affected. This disorder is caused by the nematode Haemonchus sp. abomasal parasite, measuring 1 to 2.5 cm. This is the most pathogenic helminthes, causing reduction of weight gain, severe anemia, edema of the gastric mucosa promoting decreasing the absorption of nutrients, external swelling called "edema of dewlap", and it?s characteristic signs of hemoncose, besides causing death in severe parasitosis. The aim of this study was describe the abomasal parasite fauna and sexual parasitism with Haemonchus contortus. Abomasal samples were collected after slaughter of goats, being recovered a total of 12460 helminths. The slaughtered animals were observed before and after slaughter. Before the slaughter were observed hair bristly and opaque, beyond severe anemia. After killing was observed abomasal parasitism by H. contortus and T. axei, where the parasitic load of H. contortus was accounted for more than 98% of parasitism, being equivalent the relation between male and female, in addition of the parasitism was observed mucosal lesions caused by fixation of nematode in abomasum, and pale carcass

Correlações entre medidas de germinação de sementes de cenoura em temperaturas elevadas.

O objetivo do trabalho foi definir uma metodologia de seleção para aumentar a taxa de germinação de sementes de cenoura sob duas temperaturas (20ºC e 35ºC).bitstream/item/134040/1/BPD-129-INTERNET1.pd

Emerging Chagas disease: trophic network and cycle of transmission of Trypanosoma cruzi from palm trees in the Amazon.

A trophic network involving molds, invertebrates, and vertebrates, ancestrally adapted to the palm tree (Attalaea phalerata) microhabitat, maintains enzootic Trypanosoma cruzi infections in the Amazonian county Paço do Lumiar, state of Maranhão, Brazil. We assessed seropositivity for T. cruzi infections in the human population of the county, searched in palm trees for the triatomines that harbor these infections, and gathered demographic, environmental, and socioeconomic data. Rhodnius pictipes and R. neglectus in palm-tree frond clefts or in houses were infected with T. cruzi (57% and 41%, respectively). Human blood was found in 6.8% of R. pictipes in houses, and 9 of 10 wild Didelphis marsupialis had virulent T. cruzi infections. Increasing human population density, rain forest deforestation, and human predation of local fauna are risk factors for human T. cruzi infections

Accessible technologies for kinetic and kinematic analysis of people with disabilities: a literature review/ Tecnologias acessíveis para análise cinética e cinemática da pessoa com deficiência: uma revisão da literatura

Locomotion is the process by which a being moves from one place to another, including stopping, changing speed, changes in direction and adaptation to changes in terrain. Human walking follows a pattern, and it is one of the forms of locomotion that most calls the attention of researchers. Its variation among a group may indicate pathological conditions that influence the treatment and rehabilitation of patients with low mobility. The objective of this article is to carry out a review for the development of a low-cost instrumented treadmill that can assist in the rehabilitation, treatment and follow-up of patients with stroke, and for that, a search of articles related to the topic was carried out in databases such as ScienceDirect, PubMed and others. The results obtained were satisfactory and enabled the creation of a good database. It was possible to conclude that there is a diversity of existing resources and that it is up to the professionals to direct their choice to the one that suits them best

Toxicidade de Cobre em plantas de cobertura.

As plantas de cobertura desempenham papel fundamental no condicionamento do solo. Em solos contaminados com cobre (Cu), há necessidade de selecionar espécies e ou cultivares, melhores adaptadas a tais condições. O objetivo do presente trabalho foi avaliar o crescimento de plantas de cobertura de inverno em função de doses de Cu.(Embrapa Uva e Vinho. Documentos, 99