14 research outputs found
Within-plant distribution of cotton aphid (Hemiptera: Aphididae) in cotton cultivars with colored fibers
Adenovirus, calicivirus and astrovirus detection in fecal samples of hospitalized children with acute gastroenteritis from Campo Grande, MS, Brazil
Parâmetros e estratégias de leitura e escrita utilizados por crianças de escolas pública e privada
OBJETIVOS: comparar o desempenho de bons e maus leitores e escritores de escola pública e privada na leitura em voz alta e escrita sob ditado quanto aos parâmetros de escrita e fluência de leitura, além de verificar as estratégias de leitura e escrita utilizadas por essas crianças. MÉTODO: 61escolares, do 4º e 5º ano do Ensino Fundamental de uma escola da rede pública (GPU) e outra de ensino privado (GPr) foram submetidos ao Teste de Desempenho Escolar, para classificação em bom e mau leitor e escritor; e à leitura em voz alta e escrita de palavras e pseudopalavras, para verificação do desempenho quanto ao total de acertos em leitura e escrita, taxa e acurácia de leitura e acurácia de escrita, bem como as estratégias de leitura/escrita utilizadas. RESULTADOS: de maneira geral, o desempenho dos participantes de escola privada foi superior aos de escola pública. Observou-se melhor desempenho na leitura que na escrita; em palavras que em pseudopalavras; em palavras de alta frequência que em palavras de baixa frequência; e em palavras regulares que em irregulares. Os efeitos encontrados na leitura e na escrita foram os mesmos para escola pública e privada. CONCLUSÃO: os aspectos sociais e pedagógicos influenciam no desempenho de leitura e escrita. No grupo estudado foram observados os efeitos de lexicalidade, regularidade e frequência, não evidenciando o uso preferencial de uma ou outra rota de leitura e escrita. O tipo de escola não parece interferir na estratégia de leitura/escrita usada pelas crianças
Linear measurement accuracy of CBCT panoramic reconstructions: experimental study with dry human mandibles
Laccase versus Laccase-Like Multi-Copper Oxidase: A Comparative Study of Similar Enzymes with Diverse Substrate Spectra
Laccases (EC 1.10.3.2) are multi-copper oxidases that catalyse the one-electron oxidation of a broad range of compounds including substituted phenols, arylamines and aromatic thiols to the corresponding radicals. Owing to their broad substrate range, copper-containing laccases are versatile biocatalysts, capable of oxidizing numerous natural and non-natural industry-relevant compounds, with water as the sole by-product. In the present study, 10 of the 11 multi-copper oxidases, hitherto considered to be laccases, from fungi, plant and bacterial origin were compared. A substrate screen of 91 natural and non-natural compounds was recorded and revealed a fairly broad but distinctive substrate spectrum amongst the enzymes. Even though the enzymes share conserved active site residues we found that the substrate ranges of the individual enzymes varied considerably. The EC classification is based on the type of chemical reaction performed and the actual name of the enzyme often refers to the physiological substrate. However, for the enzymes studied in this work such classification is not feasible, even more so as their prime substrates or natural functions are mainly unknown. The classification of multi-copper oxidases assigned as laccases remains a challenge. For the sake of simplicity we propose to introduce the term “laccase-like multi-copper oxidase” (LMCO) in addition to the term laccase that we use exclusively for the enzyme originally identified from the sap of the lacquer tree Rhus vernicifera
Carotid Intima-Media Thickness at Age 30, Birth Weight, Accelerated Growth during Infancy and Breastfeeding: A Birth Cohort Study in Southern Brazil
Telefonoaudiologia como estratégia de educação permanente na atenção primária à saúde no Estado de Pernambuco
Reading and spelling acquisition in Thai children
Thai, a tonal language, has its own distinctive alphabetic orthography.The study investigates reading and spelling development in Thai children, with anaim of examining the grain size that is predominantly used when reading andspelling. Furthermore, word and nonword lists were developed to examine theacquisition of the complex system of vowels and tone rules in Thai. Reading andspelling of words and nonwords were assessed in 60 Thai children ranging in agefrom 7 to 9 years 8 months from Grade(s) 1, 2, and 3. A lexicality effect was foundfor both reading and spelling. Spelling lagged behind reading in the Grade 1 children. Development rapidly increased between the youngest Grade 1 children and theolder Grade 2 and 3 children. For word reading there were significantly more lexicalerrors than phonological errors. Beginning readers appear to predominantly use alarger lexico-syllabic grain size to read Thai
