Avaliação dos potenciais fitotóxico e citotóxico de pyrostegia venusta (Ker Gawl.) miers (bignoniaceae)

Pyrostegia venusta (Ker-Gawl.) Miers (Bignoniaceae) is a species with a wide distribution in nearly all of Southern and Southeastern Brazil, has long been used in folk medicine and is considered an invasive plant. The phytotoxic potential of a hydroalcoholic extract of the flowers of P. venusta was evaluated by the germination (pre and post-emergence) and the phytotoxicity bioassays (mitotic index) on the test plant Lactuca sativa (Asteraceae) (lettuce). A phytochemical screening was performed to identify the components of the floral extract. Different concentrations of the extract caused changes in the germination parameters, the root length and the mitotic index. The phytochemical screening indicated the presence of substances such as terpenes, sterols, flavonoids, tannins and saponins, which are compounds that may be associated directly with the results of cytotoxicity and phytotoxicity observed. P. venusta has allelochemical components capable of impairing the germination and root growth of lettuce.

Avaliação histológica do processo de reparação do tecido ósseo do rato frente à aplicação de um adesivo à base de cianoacrilato

This research objective was to verify the tissues reactions obtained, in surgical experimental bone defect, after the etil cyanoacrylate chemical adhesive application in rats parietal bones. 1t was investigated the acceptance or no acceptance of the tissues surround the bone defect in which was placed the etil cyanoacrylate and the control bone defect. The specimens were submitted to light microscopic analysis. 24 adults rats were used (Rattus norvergicus, albinus, Wistar) with the average weight to 300 gr. and were divided in two groups: treated and control. After the bone defects were realized, etil cyanoacrylate was placed over one of the defects at the parietal bone (treated group). On the other defect nothing was placed and it was used like control group. After 24 hours, 3,5,7,30 and sixty days after surgery, for animals of each group were sacrificed. The bone samples were removed and fixed in 10% formalin during 72 hours and analyzed using light microscopy. The results showed that the acute inflammatory responses was more observed at lhe treated group than the control group. The chemical adhesive was observed until 60 days follow the surgery and the tissues around it present normal appearance. The chemical adhesive, etil cyanaocrylate, did not impede at the bone repair process

Influence of the surface treatment of tire rubber residues added in mortars

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação espaço-temporal da qualidade da água e simulação de autodepuração na bacia hidrográfica do córrego São Simão, SP

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Cádmio em Latossolo Vermelho cultivado com milho em colunas: mobilidade e biodisponibilidade

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Relação entre acurácia na repetição de palavras e conhecimento lexical em crianças

There is in the literature a divergent description between lexical knowledge and word production accuracy. The aims of this study were: (a) to investigate the influence (effect) of the word lexical knowledge over production accuracy; (b) in case there is, to characterize acoustically this interference. Eight children (5-6 years old) with typical development language participated of this study. The methodological procedure consisted of: (a) survey of the children lexical knowledge concerning to IAFAC’s words; (b) recordings of the IAFAC’s words; (c) identifi cation and characterization of the linguistic cues, by acoustic analysis, in the IAFAC’s word production in function of the different knowledge degrees. Our results suggest a negative correlation (r=-0,13, p=0,000) between lexical knowledge and presence of the linguistics cues in word’s production. However, the linguistics cues refer to hesitative cues instead of phonological errors. Implications of these results for clinical practicing are discussed.

A mediação da informação aliada ao uso das tecnologias da informação e comunicação em uma biblioteca escolar

Introduction: This paper presents preliminary results of the research project "Information access: actions and strategies of the Chamber of Deputies to meet 12.527/2011 Law”. Finally some considerations about the implementation of the Law within the Chamber of Deputies are presented. Objectives: Discuss the matter of public information access after the new Brazilian information access law and his relationship between the theories information policy, information regime and informational state. Methodology: Bibliographic research about several theoretical topics related to information access were raised, for example: the concept of information, information policy, informational state, information regime, electronic government and information asymmetry. Results: The preliminaries data shows a convergence of information policies from many countries, for example, Finland, Canada and South Africa, to a same point, which indicates an increase of transparency and a bigger active disclosure of information public. Conclusion: In Brazilian case, in the relationship between State and citizen, the new information access law means a materialization paradigm change or the concretization de other information regime. The sanction of this law can be interpreted as another step to increase the transparency and the affirmation of democratic relationship between State and society.

Influência do ambiente rural e urbano no desenvolvimento funcional de crianças de até seis anos de idade

The influence of the environment on psychomotor development of children is evidenced in many studies. Many factors can threaten children’s development and hinder the children with regard to functional activities. Objective: The objective of this research was to investigate the possible effects of urban and rural environment on the functional performance of children under six years old. Methods: The study included 30 children divided into two groups, one group consisted of 15 children of both genres with a mean age of 44.13 ± 20.97 months, residing in urban area and another for 15 children, both sexes with a mean age of 44.33 ± 20.91 months, residing in rural areas. All were tested using functional Pediatric Evaluation of Disability Inventory (PEDI), which is based on an evaluation trial, conducted through structured interviews with those responsible for the child. This test outlines the functional profi le of children in three performance areas: self-care, mobility and social function, evaluated in three parts (functional skills, caregiver assistance and modifi cations to the environment). In this study we used the parts I (funcional skills) and II (caregiver assistance) in three areas: self-care, mobility and social function. The collected data were analyzed by means of the Mann - Whitney test, with the level of signifi cance at p ≤ 0.05. Results: The results show no signifi cant difference in the areas of self-care and mobility, both in relation to functional abilities when the caregiver assistance. In the area of social function, there was a lower performance of children living in rural areas, in functional abilities (p = 0.027) and caregiver assistance (p = 0.028). Conclusion: Based on this information, we can conclude that children who live in rural areas have a worse development of the social functions of children living in urban areas.

As grafias não-convencionais da coda silábica nasal: análise de dados de EJA

Este artigo trata das grafias não convencionais da sílaba com coda nasal encontradasem textos escritos por jovens e adultos. Para a descrição desses dados de escrita, sãoconsideradas duas complexidades: (i) a fonético-fonológica da sílaba, particularmente doelemento nasal em coda, e (ii) a da representação ortográfica da nasalidade em português.Sob o aspecto fonético, a coda corresponde a uma redução de energia, o que pode tornar ossegmentos que preenchem essa posição da sílaba menos audíveis. Sob o aspecto fonológico,a coda pode ser vista como um constituinte não imediato da sílaba cujo preenchimento sofrerestrições. Sob o aspecto ortográfico, são três as possibilidades de registro da nasalidade:, como, respectivamente, em “campo”, “canto”, “maçã”. Argumenta-se que asgrafias não convencionais analisadas podem ser motivadas pelas características fonéticofonológicasdos enunciados falados (particularmente, da sílaba com coda nasal) e, também,pelas características das convenções ortográficas dos enunciados escritos (especificamente,as convenções para representação da nasalidade da coda). Defende-se que essas grafias nãosejam vistas como erros decorrentes da interferência da fala na escrita, mas como pistas darelação constitutiva dos enunciados falados e escritos.

Equilíbrio eletrolítico como estratégia nutricional para prevenir queda no desempenho de poedeiras comerciais em condições de alta temperatura

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Investigação das atividades alelopática, fitotóxica e antioxidante de extratos e frações de Tridax procumbens L. (Asteraceae). e Ouratea spectabilis (mart. ex engl.) engl. (Ochnaceae)

Pós-graduação em Biociências - FCLAS

Análise da dinâmica de ocupação e uso das terras e suas implicações no sistema morfohidrográfico da Bacia do Ribeirão Bonito-SP

Os sistemas ambientais são compostos por elementos e atributos que atuam em sua dinâmica, os quais, ao longo de um dado período de tempo, podem responder às condições naturais ou às imposições antrópicas, sendo que estas últimas podem desencadear modificações no seu equilíbrio natural. Neste contexto, o objetivo principal do trabalho proposto foi identificar e analisar as alterações na dinâmica de ocupação e uso das terras e sua interferência nas características naturais da bacia do Ribeirão Bonito – SP, com ênfase à geomorfologia e hidrografia. A área em questão situa-se junto à baixa bacia do Rio Piracicaba, no Estado de São Paulo, numa área de transição entre a Depressão Periférica Paulista e as Cuestas Basálticas. Para a consolidação do objetivo proposto foram utilizados os seguintes procedimentos metodológicos: revisão de literatura referente à temática adotada; caracterização do meio físico e do processo de ocupação da área em estudo; elaboração de mapas geomorfológicos de dois cenários (1962 e 2007) de acordo com as metodologias de Tricart (1965) e Verstappen; Zuidan (1975), adaptados por Cunha (2001); elaboração de mapas de ocupação e uso das terras dos dois períodos (1962 e 2007) utilizando o sistema de classificação do IBGE (2006b) e trabalhos de campo. Para manuseio dos dados e posterior análise dos mesmos, foi utilizada a idéia de sistema ambiental, que se fundamenta na teoria dos sistemas gerais, aplicada a Geografia. Findados os levantamentos, observou-se que o aumento do nível de base local com conseqüente retomada erosiva, assim como a intensa ocupação das terras pela cultura da cana-de-açúcar, foram fatores que condicionaram as alterações geomorfológicas locais, expressas principalmente pela dinâmica erosiva e processos de denudação

Modelo estrutural do maciço rochoso do Depósito de Cobre e Ouro da Mina da Chapada, Alto Horizonte, GO

The Cu-Au mine of Chapada is located in the municipality of Alto Horizonte, in the northwestern portion of Goiás state and is inserted in the geological context of the Brasilia Belt, specifically the Mara Rosa Magmatic Arc, which hosts important deposits of Au and Cu-Au. The rocks found in the study area belong mainly to the Volcano-Sedimentary Sequence of Mara Rosa and are composed of basic to acidic metavolcanic rocks, psammiticpellitic metasedimentary rocks, chemical rocks and also hydrothermal products. Late intrusions occur and are represented by pegmatitic dikes and tonalitic bodies. The ore deposit of the Chapada mine is formed predominantly by the chalcopyrite-pyritemagnetite association, where pyrite is the most abundant mineral. Through the structural mapping of the mining fronts, it was able to recognize three deformational phases (Dn, Dn +1, Dn +2). During the Dn phase, isoclinal recumbent folds were formed, in association with amphibolites facies metamorphism. Later, in phase Dn +1, there was formation of drag folds and intrafolial folds in association with retrograde metamorphism in the greenschist facies. The deformational phase Dn +2, in its turn, was responsible for late symmetrical folding of the foliation, with NS and EW axes, resulting in an interference pattern of the dome-and-basin type

Análise da variação da vazão e da concentração do metano presentes nos gases gerados no aterro sanitário de Rio Claro - SP

The study of the generation of landfill gas contributes to the understanding of the relationship between gas production and other parameters, such as time of disposal of waste and moisture (rainfall) and, thus, can subsidize the viability study for energy. This study aims to evaluate the interference of the time of disposal of waste and moisture (rainfall) in the production and composition of biogas generated at the landfill in Rio Claro - SP. As a result it was observed that for the landfill studied, the average percentage of methane in biogas ranged from 49.9% to 54.7%. It was found that moisture (rainfall) and the time of waste disposal are parameters which do not cause significant changes in methane concentration in biogas. However, when analyzed the flow of biogas, which had the maximum average value of 152.86m3/h and minimum average value of 15.47m3/h was observed great interference of moisture (rainfall) and the time of disposal of waste, because well of gas located in newer areas of the landfill showed higher values of flow rate than the areas where the landfill was the beginning of the arrangement. The same way, it was observed that in the dry season flow of biogas decreased in all drains gas analyzed

Influência do herbicida Glifosato (N-Fosfonometil)Glicina) na formação de biomassa da alga Pseudokirchneriella subcapitata (Chlorophyceae)

Herbicides are chemical agents most consumed for agricultural production and of these, glyphosate (N-(phosphonomethyl) glycine) represents more than half of world consumption of non-selective herbicides, use of systemic action and post-emergent. The present study aims to analyze the interference of different concentrations of glyphosate in the development of micro algae, unicellular species Pseudokirchneriella subcapitata, with supplementary analysis of the interference of green algae concentrations in the artificial lake Instituto de Biociências Universidade Estadual Paulista in Rio Claro, SP. To identify the effect of glyphosate on the development of microalgae concentrations: 0.118; 0.236; 0.472; 0.944; 1.888 and 3.776 mg of product (all in rejoinders), maintaining control without glyphosate, were inoculated into flasks containing 150mL of medium culture and 5mL of suspension inoculum levels. Each test was continued for 96 hours in a shaker rotating at 150 rpm at 25 / - 2 ° C and constant light of 3200 lux. At baseline and 48; 72 and 96 hours samples were taken for testing for absorbance. The final dry weight was measured and the tests with P. subcapitata cell number was quantified at the beginning and end of the tests using the Neubauer chamber under optical microscope. For algae of the artificial lake of the diversity of microalgae cells was identified through photographic documentation. The analysis of variance comparing treatments for dry biomass showed no significant differences in the tests with P. subicapitata as for the algae to the lake.The analysis of variance MANOVA showed significant differences between the treatments over time but there was no significant difference between the interactions of treatment for tests with P. subicapitata There were significant differences in the tests with microalgae of the artificial lake. With respect to cell quantification, it was found... (Complete abstract click electronic acces below)