bluuebunny/crossref_metadata_2025_split huggingface dataset:
MODELAGEM MATEMÁTICA PARA OTIMIZAÇÃO DA PRODUÇÃO E RENDA DE MELÃO E MELANCIA EM FUNÇÃO DE LÂMINAS DE ÁGUA E DOSES DE NITROGÊNIO
Authors: Delgado Angel Ramon Sanchez , Duarte Wilson Souza , Lima Valdomiro Neves , Carvalho Daniel Fonseca de 
Published: January 2015

Este trabalho teve como objetivo avaliar o desempenho do Método de Pontos Interiores (MPI), tipo trajetória central, na maximização de funções-objetivos associadas à produção e receita agrícola com limitações de água e nitrogênio. Para isso, foi desenvolvido um procedimento iterativo buscando maximizar a produção e renda separadamente, em função da água e do nitrogênio aplicado numa caixa bidimensional de restrições, a partir de funções de produtividade para as culturas do melão e melancia. Após caracterização e implementação do modelo matemático, foram gerados resultados numéricos para diferentes cenários agrícolas. Concluiu-se que a metodologia de pontos interiores (MPI), utilizada neste estudo, foi capaz de maximizar a produtividade e receita, resultando na obtenção de valores confiáveis quando comparada com a metodologia Simplex. UNITERMOS: Metodologia de Pontos Interiores, programação não linear, otimização DELGADO, A. R. S.; DUARTE, W. S.; LIMA, V. N.; CARVALHO, D. F. de. MATHEMATICAL MODELLING FOR OPTIMATIZATION OF IN COME OF MELON AND WATERMELON IN WATER DEPTHS AND NITROGEN RATES DOSES FUNCTIONS 2 ABSTRACT The objective of this work was to evaluate the Interior Point Method (central path) in the maximization of objective functions associated to production and agricultural income with water and nitrogen constraints. Thus, a computational procedure to maximize the production in relation to water and nitrogen applied to the melon and watermelon cultivation was developed in a bi-dimensional box of constraints. The model was characterized and numerical results were presented for different agricultural scenes. It was concluded that the interior point method (IPM) used in this study was capable to maximize the productivity and revenue, obtaining reliable values when compared with Simplex method. KEYWORDS: Interior Point Method, nonlinear programming, optimization
DISTRIBUIÇÃO ESPACIAL DA ÁGUA APLICADA POR EQUIPAMENTOS AUTOPROPELIDOS DE IRRIGAÇÃO - PARTE I: MODELAGEM COM O SIMULASOFT
Authors: Prado Giuliani Do , Colombo Alberto 
Published: January 2015

Um aplicativo computacional, escrito em Visual Basic 6, que simula, na condição de ausência de ventos, a distribuição espacial de água de equipamentos autopropelidos de irrigação é apresentado. A aplicação de água, no centro e ao longo do comprimento de toda a faixa molhada, é simulada em função do (i) modelo do aspersor utilizado (canhão PLONA® RL300), (ii) das condições operacionais do aspersor (diâmetro de bocal, pressão de serviço e ângulo de giro), (iii) da geometria da área (espaçamento entre carreadores, comprimento dos carreadores e comprimento da faixa efetivamente irrigada) e dos (iv) tempos de parada nas extremidades dos carreadores. As simulações executadas pelo aplicativo permitem identificar as condições operacionais dos sistemas autopropelidos de irrigação que proporcionam uma melhor uniformidade de aplicação de água. UNITERMOS: aplicativo computacional, carretel enrolador, uniformidade da irrigação PRADO, G. do; COLOMBO, A. SPATIAL DISTRIBUTION OF WATER APPLIED BY TRAVELER iRRIGATIOn MACHINES - Part I: MODELLING WITH SIMULASOFT 2 ABSTRACT A computer program in Visual Basic 6 that simulates, for low wind conditions, the spatial distribution of water applied by traveling irrigation machines is presented. Irrigation water application in the central part and along all the length of the wetted path is simulated considering the following: (i) gun sprinkler model (PLONA® model RL300), (ii) sprinkler operational condition (nozzle size, working pressure and wetted sector), (iii) field geometry (travel path length and length of the effectively irrigated strip), and (iv) standing times at the end of the travel path. Water distribution simulations allow identifying operational conditions of traveling irrigation machines that result in better water application uniformity. KEYWORDS: software, water reel machine, irrigation uniformity
RELAÇÕES INTENSIDADE-DURAÇÃO-FREQÜÊNCIA DE CHUVAS INTENSAS DE URUSSANGA, SC.
Authors: Back Álvaro José 
Published: January 2015

Este artigo apresenta as relações Intensidade-Duração-Freqüência de chuvas com duração de 5 até 1440 minutos para a cidade de Urussanga, SC. A distribuição de extremos tipo I forneceu melhor estimativa dos valores de chuvas intensas para durações de até 1 hora, e a distribuição Log Pearson tipo III forneceu melhor estimativa para durações superiores a 1 hora. Foram ajustados os parâmetros da equação de chuvas intensas, obtendo-se K = 6828,8; m = 0,178; b =33,85 e n = 1,143 para chuvas com duração de até 120 minutos; K = 284,3; m = 0,220; b = 0,0 e n = 0,578 para chuvas com duração de 120 a 480 minutos; K = 423,23; m = 0,297; b = 0,0 e n = 0,678 para chuvas com duração de 480 a 1440 minutos. Também foram analisadas as relações entre chuvas de diferentes durações. A relação entre a chuva máxima em 24 horas e a chuva de um dia depende do horário da coleta da chuva diária e do período de retorno, tendo em média o valor 1,14. UNITERMOS: Precipitação, chuva de projeto, estatística. BACK, Á. J. INTENSITY-DURATION-FREQUENCY RELATION OF INTENSE RAINFALL FOR URUSSANGA-SC. 2 ABSTRACT This paper presents the Intensity-Duration-Frequency relationship of rainfall with duration varying from 5 to 1440 minutes for Urussanga, SC, Brazil. The distribution of extreme type I provided best estimation of rainfall for durations up to 1 hour, and Log Pearson Type III distribution provided the best estimation for durations over 1 hour. Heavy rain equations were adjusted, resulting in K = 6828.8, m = 0.178, b = 33.85, n = 1.143 for rainfall with up to 120 minutes; K = 284.3, m = 0.220, b = 0.0, and n = 0.578 for rainfall from 120 to 480 minutes; K = 423.23, m = 0.297, b = 0.0 and n = 0.678 for rainfall from 480 to 1440 minutes. The relationship between rainfall of different durations was also analyzed. The relationship between the maximum rainfall during 24 hours and the rain of a day depends on the time of the collection of daily rainfall and return period and the average value of 1.14. KEYWORDS: Rainfall, design rainfall, statistics.
VARIABILIDADE TEMPORAL E MAPEAMENTO DOS DADOS CLIMÁTICOS DE BOTUCATU–SP
Authors: Sartori Anderson Antonio da Conceição , Silva Alessandra Fagioli da , Ramos Clovis Manoel Carvalho , Zimback Célia Regina Lopes 
Published: January 2015

O trabalho teve objetivo estudar a variabilidade temporal da temperatura do ar, precipitação pluviométrica e umidade relativa do ar na cidade de Botucatu-SP, Brasil, utilizando técnicas geoestatísticas. Os dados de precipitação pluviométrica, temperatura do ar e umidade relativa do ar utilizados no presente estudo são provenientes da Estação Meteorológica da Fazenda Lageado, da Faculdade de Ciências Agronômicas-UNESP. As observações foram realizadas no período de 1988 a 2007, referem-se ao total mensal de precipitação pluvial expressa em altura de lâmina d'água (mm), médias mensais de temperatura em ºC e umidade relativa em %. Os dados foram avaliados por meio da estatística clássica e geoestatística. As variáveis climáticas tiveram sua dependência verificada por variogramas, apresentando dependência temporal maior que 76%. A série temporal de umidade relativa do ar foi a que apresentou maior alcance (8,67 meses) e, conseqüentemente, maior estabilidade climática. O conhecimento da distribuição temporal das variáveis climáticas é importante para o estudo e realização do zoneamento agroclimático, bem como para o dimensionamento do sistema de irrigação das culturas. UNITERMOS: geoestatística, mapeamento e krigagem SARTORI, A. A. C.; SILVA, A. F.; RAMOS, C. M. C; ZIMBACK, C. R. L. TEMPORAL VARIABILITY AND CLIMATE DATA MAPS OF BOTUCATU-SP 2 ABSTRACT The objective of this research to study the temporal variability of air temperature, rainfall and relative humidity at Botucatu-SP, Brazil, using geostatistics techniques. The data of rainfall, air temperature and relative humidity used in this study were obtamed from the Meteorological Station of the Agricultural Sciences College. The observations were made in the period from 1988 to 2007 and refer to the total monthly rainfall expressed in water depth (mm), average monthly of temperature in °C and relative humidity in %. The data were evaluated by means of classical statistics and geostatistics. The climatic variables were their dependence verified by variogramas, presenting temporal dependence greater than 76%. The temporal series of relative humidity presented the greatest value (8.67 months) and, consequently, more stability climate. Knowledge of the temporal distribution of climate variables is important for the study and realization of agroclimatic zoning and for design measurement of rrigation systems. KEYWORDS: geostatistics, mapping and kriging
CRESCIMENTO E ACÚMULO DE NITROGÊNIO E POTÁSSIO PELO MELÃO PELE DE SAPO FERTIRRIGADO
Authors: Temóteo Amansleone Da Silva , Medeiros José Franscismar de , Dutra Indalécio , Oliveira Francisco De Assis de 
Published: January 2015

Com o objetivo de obter curvas de massa seca e de acúmulo de nitrogênio e potássio pelo melão Pele-de-Sapo (Cucumis melo L.) híbrido Sancho, sob fertirrigação e diferentes lâminas de irrigação, conduziu-se um experimento em Mossoró-RN, num delineamento experimental em blocos casualizados com três repetições. Os tratamentos consistiram de doses, em kg ha-1, de nitrogênio: 0, 91, 140 e 184 e de potássio: 0, 174, 260 e 346 aplicadas via fertirrigação sob três lâminas de irrigação: 281, 349 e 423 mm. Realizou-se cinco coletas da parte aérea das plantas (caule, folha e fruto) a partir dos 28 até 70 dias após transplantio, em intervalos de 10 dias, para determinações da massa seca da parte aérea e acúmulo de N e K. Doses superiores a 140 e 260 kg ha-1 de N e K (utilizadas pelos produtores da região) respectivamente não promoveram aumento no acúmulo de fitomassa seca total. As doses crescentes de nitrogênio garantiram os maiores acúmulos deste nutriente ao longo do ciclo da planta e as doses de N de 91 e de 140 kg ha-1, e de K de 174 e de 260 kg ha-1 e a lâmina de 349 mm proporcionaram maior acúmulo de potássio na planta. UNITERMOS: Cucumis melo L., nutrição mineral, lâminas de irrigação. TEMÓTEO, A. da S.; MEDEIROS, J. F. de; DUTRA, I. OLIVEIRA, F. A. de; GROWTH AND ABSORPTION OF N AND K BY FERTIGATED FROG SKIN MELON 2 ABSTRACT With the objective of obtaining dry matter curves, and nitrogen and potassium accumulation in Piel de Sapo melon (Cucumis melo L.) hybrid Sancho, an experiment was conducted in Mossoró – RN in a randomized blocks design with three repetitions. Treatments consisted of doses in kg ha-1 of nitrogen: 0, 91, 140 and 184 and potassium: 0, 174, 260 and 346; which were applied by fertigation in depths of 281, 349 and 423mm. Stems, leaves and fruits were harvested 5 times at 28 to 70 days after transplantation, in intervals of 10 days for analyses of aerial dry matter, nitrogen, and potassium accumulation. Doses higher than 140 and 260 kg ha-1 of N and K respectively, did not induce greater accumulation of these nutrients increasing levels throughout the plant cycle. Nitrogen doses of 91 and 140 kg ha-1, potassium doses of 174 and 260 kg ha-1 as well as depth of 348mm provided higher accumulation of potassium in the plant. KEY WORDS: Cucumis melo L., mineral nutrition, irrigation depths.
TOLERÂNCIA DO PEPINO À SALINIDADE EM AMBIENTE PROTEGIDO: EFEITOS SOBRE PROPRIEDADES FÍSICO-QUÍMICAS DOS FRUTOS
Authors: Medeiros Pedro R.F. de , Duarte Sergio N. , Dias Carlos T. S. , Silva Márcio F. D. 
Published: January 2015

A salinidade provocada pelo mau uso da fertirrigação pode causar muitos danos às plantas e consequentemente à produção. Este trabalho teve como objetivo avaliar os frutos da cultura do pepino, em relação aos parâmetros pH, sólidos solúveis totais (%), acidez total titulável (g 100g-1 de amostra) e firmeza de polpa (kgf), cultivada em meio salino. Os tratamentos foram compostos pelos seguintes fatores: dois tipos de manejo de fertirrigação (M1 e M2) e seis níveis iniciais de salinidade do solo (S1=1,5; S2=2,5; S3=3,5; S4=4,5; S5=5,5 e S6=6,5 dS m-1). O experimento foi conduzido na área experimental do Departamento de Engenharia Rural da ESALQ/USP, Piracicaba/SP. O plantio foi realizado em vasos, utilizando solo arenoso e irrigação por gotejamento. A salinização foi obtida com soluções oriundas dos próprios fertilizantes. Como principais resultados, tem-se que o tipo de manejo da fertirrigação adotado interfere menos que os níveis de salinidade do solo em relação às características físico-químicas dos frutos, porém houve diferença significativa para o parâmetro acidez total titulável em seus valores médios tanto no tipo de manejo de fertirrigação adotado, como nos níveis de salinidade do solo. UNITERMOS: fertilizantes químicos, condutividade elétrica, Cucumis sativus L. MEDEIROS, P. R. F. DE, DUARTE, S. N,. DIAS, C. T. S.,SILVA, M. F. D., CUCUMBER SALINITY TOLERANCE UNDER PROTECTED ENVIRONMENT: EFFECT ON THE FRUITS PHYSICOCHEMICAL PROPERTIES 2 Abstract The salinity caused by inappropriate fertigation use, can cause much damage to plants and consequently to its production. The objective of this study was to evaluate the cucumber fruits in relation to parameter Ph, total soluble solids (%), total acidity (g 100g-1 sample), and pulp firmness (kgf) cultivated in saline environment. The treatments were: two fertigation management types (M1 and M2) and six initial levels of soil salinity (S1=1.5; S2=2.5; S3=3.5; S4=4.5; S5=5.5 and S6=6.5 dS m-1). The experiment was conducted at the Rural Engineering Department of ESALQ/USP in Piracicaba/SP, Brazil experimental area. The grove was planted in pots using sandy soil and drip irrigation. The salinity was obtained with solutions derived from the actual fertilizer. The main results showed that the type of fertigation management adopted interfered less than the soil salinity levels regarding the fruits physicochemical characteristics; however, there was a significant difference for the parameter total acidity mean values in the fertigation type adopted as well as in the soil salinity levels. KEYWORDS: chemical fertilizers, electric conductivity, Cucumis sativus L.
VARIABILIDADE ESPACIAL DO POTENCIAL EROSIVO DAS CHUVAS PARA O ESTADO DO ESPÍRITO SANTO, BRASIL
Authors: Silva Samuel De Assis , Lima Julião Soares de Souza , Souza Gustavo Soares de , Oliveira Rone Batista de 
Published: January 2015

Este trabalho teve como objetivo determinar a variabilidade espacial da erosividade das chuvas a partir de dados de pluviômetro e construir mapas de isolinhas para o Estado do Espírito Santo, Brasil. A erosividade da chuva foi estimada para 55 postos pluviométricos no Estado com base nos dados da ANA, através da equação EI = 67,355 (r2/P)0,85. Os dados foram submetidos, incialmente, a uma estatística descritiva e exploratória. A dependência espacial foi calculada através do semivariograma para a precipitação média acumulada e as erosividades nos períodos de seca (abril a setembro) e de chuvas (outubro a março). As variáveis apresentaram dependência espacial, sendo que os semivariogramas da erosividade no período das chuvas e do total anual mostraram o mesmo padrão de distribuição espacial. Os mapas de isolinhas indicam maiores erosividades no período da seca na região litorânea. UNITERMOS: erosividade, krigagem, conservação do solo, geoestatística. SILVA, S. A.; LIMA, J. S. S.; SOUZA, G. S. S.; OLIVEIRA, R. B. SPATIAL VARIABILITY OF RAINFALL EROSIVE POTENTIAL FOR ESPIRITO SANTO STATE, BRAZIL 2 ABSTRACT This study aimed to determine the spatial variability of rainfall erosivity from rain gauge data and to construct isoline maps for Espírito Santo State, Brazil. The rainfall erosivity was estimated for 55 rain gauge stations in the Sate based on ANA’s data, using the equation EI = 67.355 (r2/P)0.85. Data were initially submitted to a descriptive and explanatory statistics. Spatial dependence was calculated through the semivariogram for the cumulative average precipitation and erosivity during dry (April to September) and rainfall (October to March) periods. The variables presented spatial dependence and the erosivity semivariograms during the rainfall and total annual periods showed the same spatial pattern distribution. The isoline maps indicated larger erosivity during dry season in the coastal region. KEYWORDS: erosivity, kriging, soil conservation, geoestatistics.
Periodontal Parameters and Whole Salivary Cytokine Profiles Among Habitual Gutka Chewers and Non‐Chewers
Authors: Javed Fawad , Al‐Kheraif Abdulaziz A. , Al Amri Mohammad D. , Mikami Toshinari , Vohra Fahim , Warnakulasuriya Saman , Romanos Georgios E. 
Published: January 2015

Background: Whole salivary interleukin (IL)‐1β, IL‐6, matrix metalloproteinase (MMP)‐8, and MMP‐9 levels among habitual gutka chewers and non‐chewers (controls) have not been investigated. The aim of the present study is to assess clinical periodontal parameters and whole salivary IL‐1β, IL‐6, MMP‐8, and MMP‐9 levels among habitual gutka chewers and controls.Methods: Forty‐five gutka chewers and 45 controls were included. Demographic information regarding age, sex, duration and daily frequency of gutka chewing, duration of gutka placement in the mouth, and daily toothbrushing habits were collected using a questionnaire. Periodontal parameters, including plaque index (PI), bleeding on probing (BOP), probing depth (PD) >3 mm, clinical attachment loss (AL), marginal bone loss (MBL), and number of missing teeth, were recorded. Unstimulated whole saliva samples were collected, and unstimulated whole salivary flow rate (UWSFR) was determined. Levels of IL‐6, IL‐1β, MMP‐8, and MMP‐9 were measured in UWS using an enzyme‐linked immunosorbent assay.Results: PI (P <0.01), BOP (P <0.01), PD >3 mm (P <0.01), and clinical AL (P <0.01) were significantly higher in gutka chewers than controls, as were whole salivary IL‐6 (P <0.01), IL‐1β (P <0.01), MMP‐8 (P <0.01), and MMP‐9 (P <0.01) concentrations. There was no significant difference in UWSFR, number of missing teeth, or MBL among habitual gutka chewers and controls.Conclusion: Periodontal inflammatory conditions were worse, and whole salivary IL‐6, IL‐1β, MMP‐8, and MMP‐9 levels were higher among gutka chewers than non‐chewers.
Two-Phase Gas-Condensate Flow in Pipeline Open-Network Systems
Authors: Martinez A. F .F. , Adewumi M. A. 
Published: January 2015

Abstract
Even if the gas transmission occurs after the necessary processing of the gas has been completed, condensation still occurs in the natural gas transmission and/or distribution systems. The quantity of condensate formed will not only depend on composition, pressure, and temperature, but also on the unequal splitting phenomenon that takes place at T-junctions in a network system. This work investigates the splitting phenomenon in horizontal-branching-T-junctions. The compositional hydrodynamic model developed at Penn State is used to evaluate gas-condensate flow in a pipeline under steady state conditions. Using a double stream model for splitting analysis at T-junctions, the mass liquid intake fractions are determined. The junction is considered as a separator and the new compositions are calculated at the run and at the branch of the junction. Although quantitative validation of the model is limited by the lack of completeness of the available data, a reasonable qualitative match of experimental data is achieved. The results demonstrate the predictive capability of liquid route preference in two-phase natural gas/condensate flow at T-junctions. In addition to liquid split, compositional split is tested using PCB as the focal point. It is found that the concentration of PCB is distributed in direct proportion to the liquid preference route and the PCB concentration in the delivery points can be higher or lower than the inlet concentration at the supply point.
Dentin Bonding: Can We Make it Last?
Authors: Tjäderhane L 
Published: January 2015

SUMMARYIn dentin bonding, contemporary dental adhesive systems rely on formation of the hybrid layer, a biocomposite containing dentin collagen and polymerized resin adhesive. They are usually able to create at least reasonable integrity of the hybrid layer with high immediate bond strength. However, loss of dentin-bonded interface integrity and bond strength is commonly seen after aging both in vitro and in vivo. This is due to endogenous collagenolytic enzymes, matrix metalloproteinases, and cysteine cathepsins, responsible for the time-dependent loss of hybrid layer collagen. In addition, the hydrophilic nature of adhesive systems creates problems that lead to suboptimal hybrid layers. These problems include, for example, insufficient resin impregnation of dentin, phase separation, and a low rate of polymerization, all of which may reduce the longevity of the bonded interface.Preservation of the collagen matrix integrity by inhibition of endogenous dentin proteases is key to improving dentin bonding durability. Several approaches to retain the integrity of the hybrid layer and to improve the long-term dentin bond strength have been tested. These include the use of enzyme inhibitors, either separately or as incorporated into the adhesive resins; increase of collagen resistance to enzymatic degradation; and elimination of water from the interface to slow down or eliminate hydrolytic loss of the hybrid layer components. This review looks at the principles, current status, and future of the different techniques designed to prevent the loss of hybrid layer and bond strength.
Seizure and anticonvulsant outcomes following stereotactic radiosurgery for intracranial arteriovenous malformations
Authors: Przybylowski Colin J. , Ding Dale , Starke Robert M. , Yen Chun-Po , Quigg Mark , Dodson Blair , Ball Benjamin Z. , Sheehan Jason P. 
Published: January 2015

OBJECT
Epilepsy associated with arteriovenous malformations (AVMs) has an unclear course after stereotactic radiosurgery (SRS). Neither the risks of persistent seizures nor the requirement for postoperative antiepileptic drugs (AEDs) are well defined.

METHODS
The authors performed a retrospective review of all patients with AVMs who underwent SRS at the University of Virginia Health System from 1989 to 2012. Seizure status was categorized according to a modified Engel classification. The effects of demographic, AVM-related, and SRS treatment factors on seizure outcomes were evaluated with logistic regression analysis. Changes in AED status were evaluated using McNemar's test.

RESULTS
Of the AVM patients with pre- or post-SRS seizures, 73 with pre-SRS epilepsy had evaluable data for subsequent analysis. The median patient age was 37 years (range 5–69 years), and the median follow-up period was 65.6 months (range 12–221 months). Sixty-five patients (89%) achieved seizure remission (Engel Class IA or IB outcome). Patients presenting with simple partial or secondarily generalized seizures were more likely to achieve Engel Class I outcome (p = 0.045). Twenty-one (33%) of 63 patients tapered off of pre-SRS AEDs. The incidence of freedom from AED therapy increased significantly after SRS (p < 0.001, McNemar's test). Of the Engel Class IA patients who continued AED therapy, 54% had patent AVM nidi, whereas only 19% continued AED therapy with complete AVM obliteration (p = 0.05).

CONCLUSIONS
Stereotactic radiosurgery is an effective treatment for long-term AVM-related epilepsy. Seizure-free patients on continued AED therapy were more likely to have residual AVM nidi. Simple partial or secondarily generalized seizure type were associated with better seizure outcomes following SRS.