Pós-processamento do MNC

O procedimento de poda efetuado no Modelo Neural Combinatório (MNC) [MAC 89] baseia-se nos valores dos acumuladores localizados nas conexões dos arcos quechegam às hipóteses

Produção de mudas de caramboleiras 'B-10' e 'Golden Star': II. Marcha de absorção e acúmulo de nutrientes.

A participação do Brasil no mercado externo de frutas tem aumentado consideravelmente e com potencial para crescer ainda mais. A constante ascensão dos dados de exportação brasileira é resultado da combinação de avanços tecnológicos do setor produtivo e de acesso a novos mercados consumidores. A caramboleira apresenta-se como uma excelente opção de cultivo de frutas exóticas, com grande potencial para atender ao mercado interno e às exportações. Assim, objetivou-se avaliar a marcha de absorção e de acúmulo de nutrientes em mudas de caramboleiras cultivadas em solução nutritiva. O experimento foi realizado em parcelas subdivididas, sendo utilizadas como parcela as duas cultivares de caramboleira (?B-10? e ?Golden Star?) e, como subparcelas, cinco épocas de coleta de plantas, realizadas aos 208; 233; 258; 283 e 308 dias após o transplantio para a solução nutritiva. O delineamento foi inteiramente casualizado, com três repetições. As mudas foram cultivadas em vasos (8L) com solução nutritiva (pH=5,5 ± 0,5), com aeração. O experimento iniciou-se em 24-08-2005. Nos diferentes órgãos das mudas (folhas, caule e raízes), determinaram-se a marcha de absorção, o acúmulo de nutrientes e os índices nutricionais. Não houve diferenças no acúmulo de nutrientes entre as mudas de caramboleira de ambas as cultivares, sendo a ordem decrescente dos nutrientes em cada muda de ?B-10?, no final do período experimental: N > K > Ca > Mg > S > P > Fe > Mn > B > Cu > Zn. Para a ?Golden Star?, a ordem foi: N > K > Ca > Mg > P > S > Fe > Mn > B > Cu > Zn. Para as duas cultivares, o acúmulo médio foi maior nas folhas > caule > raízes. O período de maior exigência para ?B-10? foi entre 208 ? 233 e, para ?Golden Star?, entre 233 ? 283 dias após o transplantio. As diferentes taxas de acumulação líquida dos nutrientes, nos diferentes órgãos da caramboleira, nem sempre acompanharam a taxa de acumulação de nutrientes do respectivo órgão. Production of star fruit ?B-10? and ?Golden Star? seedlings: II ? Absorption rate and acumulation of nutrients. Abstract ? Brazil?s participation in the external market of fruits has increased considerably with the potential to grow further. The constant rise of the Brazilian exportation data is the result of a combination of technological advances in the productive sector and access to new markets. The star fruit is presented as an excellent option for cultivation of exotic fruits, with great potential to attend the domestic market and exportation. Thus, the objective was to assess absorption rate and accumulation of nutrients in star fruit seedlings, grown in nutrient solution. The experiment was conducted in split plots being used as part of the two cultivars of star fruit (?B-10? and ?Golden Star?) and as subplots, five plant collecting periods, realized at 208, 233, 258, 283 and 308 days after transplanting to the nutrient solution. The experimental design was completely randomized with three replications. The seedlings were grown in pots (8L) with nutrient solution (pH = 5.5 ± 0.5) with aeration. The experiment started on 08.24.2005. In different plant organs (leaves, stems and roots), absorption rate, accumulation of nutrients and nutritional indices were determined. It did not have differences in the accumulation of nutrients in the star fruit seedlings for both cultivars, the decreasing order of the nutrients in each ?B-10?seedlings, in the end of the experimental period, was: N > K > Ca > Mg > S > P > Fe > Mn > B > Cu > Zn. For ?Golden Star? the decreasing order was: N > K > Ca > Mg > P > S > Fe > Mn > B > Cu > Zn. For the two cultivars, the average accumulation was bigger in leaves > stem > roots. The period of bigger requirement for ?B-10? was between 208 - 233 and, for ?Golden Star?, between 233 - 283 days after the transplantation. The different rates of nutrient liquid accumulation, in the different organs of star fruit trees, not always followed the nutrient accumulation rate of the respective organ

Produção de mudas de caramboleiras 'B-10' e 'Golden Star': I. Parâmetros biológicos.

O Brasil é um dos maiores produtores de carambola do mundo, entretanto há poucas informações científicas, especialmente estudos de nutrição mineral com mudas dessa frutífera. Objetivando contribuir com o conhecimento desse importante aspecto, desenvolveu-se estudo que permitisse avaliar o crescimento e o acúmulo de nutrientes em mudas de caramboleiras, cultivadas em solução nutritiva. O experimento foi realizado em parcelas subdivididas, sendo utilizadas como parcela as duas cultivares de caramboleira ('B-10' e 'Golden Star') e, como subparcelas, as cinco épocas de coleta de plantas, realizadas aos 208; 233; 258; 283 e 308 dias após o transplantio para a solução nutritiva. O delineamento foi inteiramente casualizado, com três repetições. As mudas foram cultivadas em vasos (8L) com solução nutritiva (pH=5,5 ± 0,5), com aeração. O experimento iniciou-se em 24-08-2005. Nos diferentes órgãos das mudas (folhas, caule e raízes), avaliaram-se o crescimento e o acúmulo de nutrientes, e os índices nutricionais. Não houve diferenças no crescimento e, em geral, no acúmulo da massa da matéria seca entre as duas cultivares. Houve acúmulo linear da massa da matéria seca das mudas de caramboleira com o tempo de cultivo, sendo maior nas folhas > caule > raízes. O período de maior acúmulo da massa de matéria seca e da taxa de crescimento relativo na planta inteira esteve compreendido entre 208 ? 233 e 233 258 dias após o transplantio para a 'B-10' e a 'Golden Star', respectivamente. Production of seedlings of star fruit 'B-10' and 'Golden Star': I biological parameters. Abstract ? Brazil is one of the greatest producer of star fruit in the world, however, there are few scientific information, especially studies of mineral nutrition with seedlings of this fruitful. In order to contribute with the knowledge of this important aspect, it was developed a study that allowed evaluating the growth and the accumulation of nutrients in seedlings of star fruits trees, cultivated in nutritional solution. The experiment was realize in split plot, with two cultivars ('B-10' and 'Golden Star') and as subplots, five collecting periods of plants, realized in 208, 233, 258, 283 and 308 days after the transplantation to nutritional solution, with 3 repetitions. The seedlings had been cultivated in pots (8L) with nutritional solution (pH=5.5 ± 0.5), with aeration. The experiment started on 08-24-2005. In the different parts of the seedlings (leaves, stem and roots), it was evaluated the growth and the accumulation of nutrients and nutritional ratios. It did not have differences in the growth and, in general, in the accumulation of the dry matter between the two cultivars. There was linear accumulation of the dry matter of the seedlings of star fruit trees with the cultivation period, it was bigger in leaves > stem > roots. The period of greater accumulation of dry matter and the tax of relative growth in the entire plant was between 208 - 233 and 233 - 258 days after the transplantation for 'B-10' and 'Golden Star' respectively

Short-range interactions in a two-electron system: energy levels and magnetic properties

The problem of two electrons in a square billiard interacting via a finite-range repulsive Yukawa potential and subjected to a constant magnetic field is considered. We compute the energy spectrum for both singlet and triplet states, and for all symmetry classes, as a function of the strength and range of the interaction and of the magnetic field. We show that the short-range nature of the potential suppresses the formation of ``Wigner molecule'' states for the ground state, even in the strong interaction limit. The magnetic susceptibility $\chi(B)$ shows low-temperature paramagnetic peaks due to exchange induced singlet-triplet oscillations. The position, number and intensity of these peaks depend on the range and strength of the interaction. The contribution of the interaction to the susceptibility displays paramagnetic and diamagnetic phases as a function of $T$.Comment: 12 pages,6 figures; to appear in Phys. Rev.

Estado nutricional de mangueiras determinado pelos métodos DRIS e CND.

Diferentes procedimentos referentes do método do sistema integrado de diagnose e recomendação podem influenciar a acurácia da diagnose foliar da mangueira. Assim, o objetivo deste estudo foi comparar diagnósticos do estado nutricional da mangueira obtidos através de diferentes métodos de avaliação do estado nutricional, comparando-se relações multivariadas (método CND) com relações bivariadas (método DRIS), ou seja, com variações quanto ao uso de normas específicas ou preliminares e à transformação logarítmica dos dados. Foram utilizados resultados de análises de teores foliares de macro e micronutrientes de 63 pomares de mangueira do Vale do Submédio São Francisco. Para a interpretação dos índices nutricionais através do critério do Potencial de Resposta à Adubação. Os métodos CND e DRIS, com e sem transformação logarítmica e se usando normas específicas ou preliminares, as quais apresentaram desempenho semelhante na avaliação do estado nutricional da mangueira no Submédio São Francisco. Nos pomares de manga do semiárido nordestino as deficiências de micronutrientes (Zn, Fe e Cu) foram mais frequentes que a deficiência de macronutrientes

Bioecologia, Monitoramento e Controle de Cochonilhas Farinhentas (Hemiptera: Pseudococcidae) na Cultura da Videira.

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Fatigue Effects in Daily Life Activities of Kidney Transplant Recipients

After undergoing kidney transplantation, some patients still face one symptom that continues after the dialysis sessions: fatigue (physical and mental tiredness that does not get better after resting). Fatigue effects in the everyday lives of kidney transplant patients can be beneficially modified early by changing this scenario. This is a quantitative study about the intensity and impacts of fatigue in kidney transplant patients admitted to the Hypertension and Kidney Hospital from October 2011 to March 2012. the fatigue pictogram was used to evaluate the level of fatigue interference in the daily life activities of kidney transplant patients. the sample consists of 39 patients, and was developed in 2 phases: data collection and attendance after and before the transplantation until hospital discharge. Descriptive statistical analyses were used. in the group at issue, we have noticed the following profile of the sample: 84.3% of transplantations with live donors, most were men, average age 36.5 years old, average hospitalization time 11.1 days, average time of renal failure 66.4 months, systemic arterial hypertension prevalence 66.7%, and the prevalence of at least 1.8 diseases in each individual. the self-referred causes of chronic renal failure were uncontrolled systemic arterial hypertension, glomerulonephritis, and overuse of anti-inflammatory drugs, among others. the study shows that fatigue is directly related to the level of activities of daily living, causing less ability to perform activities in the higher level of fatigue, which is in the immediate postoperative period and only settling fully on the 9th postoperative day.Universidade Federal de São Paulo, Nursing Sch São Paulo, São Paulo, BrazilUniversidade Federal de São Paulo, Kidney & Hypertens Hosp, São Paulo, BrazilUniversidade Federal de São Paulo, Nursing Sch São Paulo, São Paulo, BrazilUniversidade Federal de São Paulo, Kidney & Hypertens Hosp, São Paulo, BrazilWeb of Scienc