842 resultados para length-weight relationship


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Objective: To study the growth of children with complete unilateral cleft lip and palate (UCLP) from birth to 2 years of age and to construct specific UCLP growth curves. Design: Physical growth was a secondary outcome measure of a National Institutes of Health-sponsored longitudinal, prospective clinical trial involving the University of Florida (United States) and the University of Sao Paulo (Brazil). Patients: Six hundred twenty-seven children with UCLP, nonsyndromic, both genders. Methods: Length, weight, and head circumference were prospectively measured for a group of children enrolled in a clinical trial. Median growth curves for the three parameters (length, weight, head circumference) were performed and compared with the median for the National Center for Health Statistics (NCHS) curves. The median values for length, weight, and head circumference at birth and 6, 12, 18, and 24 months of age were plotted against NCHS median values and statistically compared at birth and 24 months. Setting: Hospital de Reabilitacao de Anomalias Craniofaciais, Universidade de Sao Paulo, Bauru, Brazil (HRAC-USP). Results: At birth, children of both genders with UCLP presented with smaller body dimensions in relation to NCHS median values, but the results suggest a catch-up growth for length, weight, and head circumference for girls and for weight (to some degree) and head circumference for boys. Conclusions: Weight was the most compromised parameter for both genders, followed by length and then head circumference. There was no evidence of short stature. This study established growth curves for children with UCLP.

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This research is part of the field of organizational studies, focusing on organizational purchase behavior and, specifically, trust interorganizational at the purchases. This topic is current and relevant by addressing the development of good relations between buyer-supplier that increases the exchange of information, increases the length of relationship, reduces the hierarchical controls and improves performance. Furthermore, although there is a vast literature on trust, the scientific work that deal specifically at the trust interorganizational still need further research to synthesize and validate the variables that generate this phenomenon. In this sense, this investigation is to explain the antecedents of trust interorganizational by the relationship between the variable operational performance, organizational characteristics, shared values and interpersonal relationships on purchases by manufacturing industries, in order to develop a robust literature, most consensual, that includes the current sociological and economic, considering the effect of interpersonal relationships in this phenomenon. This proposal is configured in a new vision of the antecedents of interorganizational trust, described as significant quantitative from models Morgan and Hunt (1994), Doney and Cannon (1997), Zhao and Cavusgil (2006) and Nyaga, Whipple, Lynch (2011), as well as qualitative analysis of Tacconi et al. (2011). With regard to methodological aspects, the study assumes the form of a descriptive, survey type, and causal trace theoretical and empirical. As for his nature, the investigation, explicative character, has developed a quantitative approach with the use of exploratory factor analysis and structural equation modeling SEM, with the use of IBM software SPSS Amos 18.0, using the method of maximum verisimilitude, and supported by technical bootstraping. The unit of analysis was the buyer-supplier relationship, in which the object under investigation was the supplier organization in view of the purchasing company. 237 valid questionnaires were collected among key informants, using a simple random sampling developed in manufacturing industries (SIC 10-33), located in the city of Natal and in the region of Natal. The first results of descriptive analysis demonstrate the phenomenon of interorganizational trust, in which purchasing firms believe, feel secure about the supplier. This demonstration showed high levels of intensity, predominantly among the vendors that supply the company with materials that are used directly in the production process. The exploratory and confirmatory factor analysis, performed on each variable alone, generated a set of observable and unobservable variables more consistent, giving rise to a model, that needed to be further specified. This again specify model consists of trajectories was positive, with a good fit, with a composite reliability and variance extracted satisfactory, and demonstrates convergent and discriminant validity, in which the factor loadings are significant and strong explanatory power. Given the findings that reinforce the model again specify data, suggesting a high probability that this model may be more suited for the study population, the results support the explanation that interorganizational trust depends on purchases directly from interpersonal relationships, sharing value and operating performance and indirectly of personal relationships, social networks, organizational characteristics, physical and relational aspect of performance. It is concluded that this trust can be explained by a set of interactions between these three determinants, where the focus is on interpersonal relationships, with the largest path coefficient for the factor under study

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This study aimed to evaluate the effect of food type on growth performance and water quality of angelfish juvenile. A total of 168 angelfish Pterophyllum scalare var. marble (w(i) = 151.3 +/- 37.9 mg e l(i) = 2.2 +/- 0.07 cm) were distributed in 12 aquaria 14 L (1.0 fish L(-1)). The experiment was conducted in a complete randomized design with three treatments and four replicates. Foods evaluated were: Artemia nauplii, commercial flakes diet and commercial powder diet. Fish weight and length were recorded in the beginning and the end of 60 experimental days. Water temperature, dissolved oxygen, pH and total ammonia were monitored during experiment. Best averages of final weight, final length, weight gain and condition factor were observed on fish fed powder diet. Specific growth rate, weight uniformity and survival were not influenced (p > 0.05) by food type. Just on length uniformity fish fed Artemia showed better averages than fish fed flakes diet and powder diet. Foods evaluated did not influenced (p > 0.05) on water quality parameters. In conclusion, for juvenile angelfish, the food type influences growth performance without affect water quality parameters. Powder diet resulted in better growth performance.

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In asthmatic, the lung hyperinflation leaves the inspiratory muscle at a suboptimal position in length-tension relationship, reducing the capacity of to generate tension. The increase in transversal section area of the inspiratory muscles could reverse or delay the deterioration of inspiratory muscle function. Objective: To evaluate the evidence for the efficacy of inspiratory muscle training (IMT) with an external resistive device in patients with asthma. Methods: A systematic review with meta-analysis was carried out. The sources researched were the Cochrane Airways Group Specialised Register of trials, Cochrane Central Register of Controlled Trials (The Cochrane Library Issue 11 of 12, 2012), MEDLINE, EMBASE, PsycINFO, CINAHL, AMED, ClinicalTrials.gov and reference lists of articles. All databases were searched from their inception up to November 2012 and there was no restriction on the language of publication. Randomised controlled trials that involved the use of an external inspiratory muscle training device versus a control (sham or no inspiratory training device) were considered for inclusion. Two reviewers independently selected articles for inclusion, evaluated risk of bias in studies and extracted data. Results: A total of five studies involving 113 asthmatic patients were included. Three clinical trials were produced by the same group. The included studies showed a significant increase in maximal inspiratory pressure (MD 13.34 cmH2O, 95% CI 4.70 to 21.98), although the confidence intervals were wide. There was no statistically significant difference between the IMT group and the control group for maximal expiratory pressure, peak expiratory flow rate, forced expiratory volume in one second, forced vital capacity, sensation of dyspnea and use of beta2-agonist. There were no studies describing exacerbation events that required a course of oral and inhaled corticosteroids or emergency department visits, inspiratory muscle endurance, hospital admissions and days of work or school. Conclusions: There is no conclusive evidence in this review to support or refute inspiratory muscle training for asthma, once the evidence was limited by the small number of studies included, number of participants in them together with the risk of bias. More well conducted randomized controlled trials are needed, such trials should investigate respiratory muscle strength, exacerbation rate, lung function, symptoms, hospital admissions, use of medications and days off work or school. IMT should also be assessed in the context of more severe asthma

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Objetivo: o estudo longitudinal, entre o 18º e o 21º dias de prenhez, das alterações bioquímicas e histoquímicas das placentas de ratas diabéticas, cujos fetos tiveram macrossomia e retardo de crescimento intra-uterino (CIUR). Material e Método: usando modelo experimental em ratas, foram estudados 3 grupos: controle, diabete moderado e grave. A prenhez foi resolvida por cesárea no 18º ou no 21º dia. Compararam-se as glicemias materna e fetal; a incidência de recém-nascidos (RN) de peso pequeno (PIP), adequado (AIP) e grande (GIP) para tempo de prenhez; peso, índice e conteúdo de DNA, RNA e proteínas placentários e quantidade de glicogênio na superfície de trocas materno-fetais. Resultados: no diabete moderado houve maior proporção de RN-GIP com placentas ricas em DNA e diminuição progressiva de glicogênio em suas membranas no final da prenhez. No diabete grave houve predomínio de RN-GIP e as placentas exibiram menor conteúdo de DNA, síntese aumentada de RNA e tendência a maior produção protéica, com manutenção dos depósitos de glicogênio. Conclusões: concluiu-se que, entre o 18º e o 21º dias, os desvios do crescimento fetal no diabete materno, moderado e grave relacionam-se a alterações placentárias distintas. No moderado há apenas hiperplasia celular, com desaparecimento do glicogênio no final da prenhez. No grave, a superfície de trocas materno-fetais é mais espessada e, além de hiperplasia, há hipertrofia das células, com manutenção dos estoques placentários de glicogênio.

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Foram estimados os parâmetros de crescimento em comprimento e peso para Sardinella brasiliensisda costa sudeste do Brasil (22ºS-28ºS), evidenciando-se dois padrões de crescimento distintos: um, para os exemplares que ocupam as regiões estuarino-lagunares de Cananeia e Paranaguá (25º-26ºS; III) e outro, para aqueles que ocupam as regiões costeiras da plataforma. Nestas regiões foi identificado um grupo no extremo norte da região (22º- 23ºS; I) com crescimento mais intenso que o verificado para o resto da área (23º-25ºS; II e 26º- 28ºS; IV). Os resultados sugerem que a espécie não é homogênea na região, reforçando hipótese anterior.

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Objetivou-se com este trabalho verificar o efeito da matéria orgânica como componente de substratos para mudas micropropagadas de abacaxizeiro cv. Pérola em fase de aclimatização. Mudas micropropagadas de abacaxizeiro cv. Pérola, selecionadas de acordo com o peso (aproximadamente 2 g), foram plantadas em bandejas de isopor de 72 células de 120 cm³ contendo proporções de substratos com terra, esterco bovino, Plantmax e matéria orgânica. O delineamento estatístico utilizado foi o inteiramente casualizado com 4 repetições e 3 plantas por parcela. As avaliações foram feitas 90 dias após o plantio, quando se avaliou: altura da planta, comprimento de raiz, peso de matéria fresca de raiz e parte aérea, peso de matéria seca de raiz e parte aérea e número de folhas. Com os resultados obtidos, conclui-se que a matéria orgânica tem efeito significativo no desenvolvimento das mudas. Com o substrato contendo terra, esterco e Plantmax foi obtido o melhor desenvolvimento das raízes e parte aérea.

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Avaliaram-se as exigências nutricionais de proteína e energia em juvenis de acará-bandeira (Pterophyllum scalare). Utilizou-se delineamento inteiramente casualizado, em esquema fatorial 3 × 2, com três níveis de proteína bruta (26, 30 e 34%), dois de energia digestível (3.100 e 3.300 kcal/kg de ração) e três repetições. Juvenis com peso médio de 2,33 ± 0,26 g foram distribuídos em aquários contendo 25 litros de água, temperatura controlada (26 ± 1ºC) e filtro biológico, na densidade de estocagem de seis animais por aquário. Os peixes foram alimentados à vontade às 9, 14 e 16h30. Na análise do desempenho produtivo, foram avaliados o peso final, o comprimento final, o ganho de peso, o consumo de ração, a conversão alimentar, a taxa de crescimento específico, a taxa de eficiência protéica e o fator de condição. As dietas contendo 26% PB proporcionaram maiores valores para taxa de eficiência protéica apenas em relação às dietas contendo 34% PB. As exigências nutricionais de proteína e energia em juvenis de acará-bandeira podem ser atendidas com dietas contendo 26% PB e 3.100 kcal ED/kg.

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Broiler chicks aged 12 h after hatching were allotted according to a block design in a 7 x 2 factorial schedule of 14 treatments and four replications of 50 chicks each one. The main experimental factors were fasting for 0, 6, 12, 18, 24, 30, and 36 h after chick placement and sex. Independent of sex, fasting had a negative linear effect on weight and productivity of broilers at market age (42 d) without affecting feed conversion or mortality index. Groups subjected to 18 and 36 h of fasting after placement, corresponding to 30 and 48 h posthatching fasting, had lower biometrical values for small intestine (length, weight, and size; villus height; and crypt depth) than chicks fed immediately after placement. According to the Pearson test, BW of birds at 21 and 42 d were significantly correlated to BW at 7 d (r = 0.77) and 21 d (r = 0.45), respectively. Males performed better than females but had higher mortality rates. Fasting did not influence serum concentrations of corticosterone or sexual steroid hormones. Nevertheless, early signs of sexual dimorphism arose from the high estradiol (E2) concentration on female serum. Heterophil:lymphocyte ratio was not different among treatments, indicating that early fasting did not seem to be a stress factor 21 or 42 d after fasting. The results suggested a maximum fasting of 24 h after hatching in order to preserve broiler productivity at market age.

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Introduction. Breeding studies for acerola (Malpighia glabra) improvement aim at obtaining plants that produce fruits with uniform chemical and physical attributes, including high levels of vitamin C, which can provision the market with fresh fruit and frozen pulp. High variability in fruit quality is observed in Brazilian acerola crops, especially those propagated by seeds. In this context, the objective of our research was to evaluate the physical and chemical characteristics of Brazilian acerola genotype fruits. Materials and methods. Sixteen acerola genotypes were studied in Jaboticabal, São Paulo State, Brazil. A completely randomized design with sixteen treatments and six replications was adopted. Each treatment was represented by one genotype. Several parameters related to fruit quality, such as width, length, weight, pulp percentage, soluble solids (SS), titratable acidity (TA), [SS / TA] ratio and vitamin C content, were evaluated in fruits of the acerola genotypes. The results were submitted to variance analyses, the Tukey test and cluster analysis. Results and discussion. There was a statistical difference between the acerola genotypes studied. Three of them stood out as natural sources of vitamin C. In spite of fruit size, two acerola genotypes were found to have potential for fresh fruit production. In a general form, genotypes that presented a high [SS / TA] ratio had low vitamin C content. Conclusion. The acerola genotypes studied in Jaboticabal presented high variability, forming eleven groups in relation to fruit quality parameters. © 2007 Cirad/EDP Sciences All rights reserved.

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The best frequency of feeding for development of common carp fingerlings Cyprinus carpio was determined. Four hundred fish (4.88 ± 1.41 g and 6.72 ± 0.70 cm) were used, distributed in 20 tanks of 250 L each in completely randomized design with four treatments and five replicates. The four feeding strategies adopted were: providing feed once (T1), twice (T2), three (T3) and four times daily (T4) at the same amount being fractionated as described. At the end of 45 days of experiment were carried out measurements of the final weight (FW), final length (FL), weight gain (WG), feed conversion (FC), specific growth rate (SGR) and survivor (SR). It was evaluated the chemical composition of fish carcass: moisture (MT), crude protein (CP), lipids (LP) and ash (AS) and hematological analyzes performed such as erythrocyte (ER), hemoglobin (HG) and hematocrit (HT). There were significant statistical differences (P<0.01) for FW, FL, WG and SGR. For FC and SR there were no statistical differences (P>0.01). For the chemical composition the moisture, lipids and ash showed significant statistical differences (P>0.01), except only for protein (P>0.01) The hematological composition was not influenced by the feed frequency, it was not observed significant statistical difference (P>0.01) of erythrocytes, hemoglobin and hematocrit among dietary treatments. For common carp fingerlings, the provision of ration four times daily provided better final weight, final length, weight gain and specific growth rate without causing changes in the composition and hematological parameters of the fish.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Aquicultura - FCAV

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O presente estudo estima a biomassa média e caracteriza a distribuição espaço-temporal dos peixes da familia Sciaenidae no estuário do rio Caeté, no litoral norte do Brasil com ênfase nas espécies Stellifer rastrifer, Stellifer naso, Macrodon ancytodon e Cynoscion rnicrolepidotus. Estimam-se parâmetros biológicos como a idade da primeira maturação sexual (L50 ), os períodos de desova, a relação peso-comprimento, hábitos alimentares, a sobreposição das dietas, o consumo médio de alimento por unidade de peso (Q/B), bem como a estrutura e dinâmica populacional. Para tal durante o período outubro de 1996 a agosto de 1997, foram feitas 6 coletas bimensais, no estuário do rio Caeté. Onze espécies de peixes da família Sciaenidae foram coletadas. A biomassa média da família Sciaenidae foi de 0,840g/m². A distribuição espacial da biomassa no sistema foi relacionada com a dinâmica de recrutamento e reprodução das espécies. Assim, os juvenis das espécies S. rastrifer, S. naso e M. ancylodon distribuíram-se nas áreas mais internas do estuário e os adultos nas áreas externas, com maiores teores de salinidade. Os valores de L50 foram estimados em 10cm, 10,7cm e 21,5cm, respectivamente. Foram determinados para essas três espécies dois períodos anuais de reprodução, que definiram dois períodos de recrutamento, cada coorte apresentando diferentes parâmetros de crescimento. As relações peso-comprimento foram do tipo alométrico positivas, sem mostrar diferenças significativas entre sexos. Foi achada uma mudança na composição da dieta relacionada com o tamanho da espécie. Assim o zooplâncton foi comum nos indivíduos jovens, para ser substituído por juvenis de crustáceos decápodos, poliquetas e juvenis de peixes nos indivíduos maiores. O grau de sobreposição das dietas variou durante o desenvolvimento ontogénico das espécies. A relação Q/B mostrou que as espécies menores como S. rastrifer e S. naso consumem anualmente maior proporção de alimento em relação ao seu peso corporal, ao ser comparado com as espécies maiores M. ancylodon e C. rnicrolepidotus. Os resultados demostraram maiores taxas de crescimento, menores comprimentos para cada idade e menor longevidade para os peixes do estuário do Caeté, quando comparados com as mesmas espécies em latitudes maiores.