1,621 research outputs found

    A Framework for Dynamic Web Services Composition

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    Dynamic composition of web services is a promising approach and at the same time a challenging research area for the dissemination of service-oriented applications. It is widely recognised that service semantics is a key element for the dynamic composition of Web services, since it allows the unambiguous descriptions of a service's capabilities and parameters. This paper introduces a framework for performing dynamic service composition by exploiting the semantic matchmaking between service parameters (i.e., outputs and inputs) to enable their interconnection and interaction. The basic assumption of the framework is that matchmaking enables finding semantic compatibilities among independently defined service descriptions. We also developed a composition algorithm that follows a semantic graph-based approach, in which a graph represents service compositions and the nodes of this graph represent semantic connections between services. Moreover, functional and non-functional properties of services are considered, to enable the computation of relevant and most suitable service compositions for some service request. The suggested end-to-end functional level service composition framework is illustrated with a realistic application scenario from the IST SPICE project

    An Algorithm for Automatic Service Composition

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    Telecommunication companies are struggling to provide their users with value-added services. These services are expected to be context-aware, attentive and personalized. Since it is not economically feasible to build services separately by hand for each individual user, service providers are searching for alternatives to automate service creation. The IST-SPICE project aims at developing a platform for the development and deployment of innovative value-added services. In this paper we introduce our algorithm to cope with the task of automatic composition of services. The algorithm considers that every available service is semantically annotated. Based on a user/developer service request a matching service is composed in terms of component services. The composition follows a semantic graph-based approach, on which atomic services are iteratively composed based on services' functional and non-functional properties

    Pasta highly enriched with vegetables: from microstructure to sensory and nutritional aspects

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    A lifestyle that combines poor food choices with very low or no physical activity can result in the development of diseases such as obesity, and this is affecting a growing number of children. One of the most effective strategies to fight obesity combines physical activity and the consumption of low energy-dense foods, such as vegetables. Vegetables are known to have health benefits but are often non-appealing to children/adolescents due to their bitterness, undesired texture, and their low satiating capacity. One of the possible solutions to increase vegetable intake by children is to incorporate vegetables in a food matrix they like. Several studies have shown that pasta is very much appreciated by children, making it an ideal candidate for the development of vegetable-enriched foods. In this work, dried broccoli powder (BP) was used to enrich pasta-like products. We have investigated aspects that are important to sensorial properties and aspects related to possible health benefits. One aspect relevant to sensorial properties is rheology. The rheology of sweet potato starch (SPS) dough was drastically affected by high volume fractions of BP. This was caused by the swelling of the broccoli powder, up to a maximum of 7.6 times their original volume. In order to control this high swelling capacity of the particles two approaches were followed and both resulted in the prevention of particle swelling. The first was the use of hydrocolloids with high water binding capacity (e.g. xanthan gum) and the second was the use of a different matrix (durum wheat semolina (DWS)). DWS pasta did not show to be greatly affected by the incorporation of high amounts of broccoli powder. The acceptability of pasta products was assessed using a test panel. The results showed that all samples tested (0 – 30%BP) were acceptable, where 30% BP turned out to be on the limit of acceptability. Glucosinolates (GLs) are phytochemicals that are associated with the health benefits of broccoli. An increasing volume fraction of broccoli powder resulted in an increasing content of glucosinolates in dried cooked pasta. At volume fractions higher than 20% BP this effect levels off. From this work, we can conclude that as much as 20% BP can be added to DWS pasta to improve nutritional properties (in terms of GLs) while maintaining acceptable sensorial properties.</p

    Sistemas Deliberativos Em Perspectiva Meso: A Abordagem Dos Subsistemas Aplicada Aos Conselhos De Políticas Públicas Em Belo Horizonte

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    This article presents a critical dialogue with the literature about deliberative systems. It features an innovative proposal to investigate deliberative arenas in their connections with other parts of the political system and society. It adopts a method present in the field of Social Network Analysis (SNA) to conduct an empirical investigation of public policy councils of the city of Belo Horizonte. Our working hypothesis was that the main links among the councils would be informal mechanisms that promotes institutional interaction. The results show that government councillors are part of various councils simultaneously, so they play the role of links between the practices and institutions in which they work. It suggests the necessity to carry out future studies that would be able to show the connection of councils to the other parts of the broader deliberative system.22116719

    Analysis of access to hypertensive and diabetic drugs in the Family Health Strategy, State of Pernambuco, Brazil

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    OBJECTIVE: To evaluate the access to drugs for hypertension and diabetes and the direct cost of buying them among users of the Family Health Strategy (FHS) in the state of Pernambuco, Brazil. METHODS: Population-based, cross-sectional study of a systematic random sample of 785 patients with hypertension and 823 patients with diabetes mellitus who were registered in 208 randomly selected FHS teams in 35 municipalities of the state of Pernambuco. The selected municipalities were classified into three levels with probability proportional to municipality size (LS, large-sized; MS, medium-sized; SS, small-sized). To verify differences between the cities, we used the &#967;2 test. RESULTS: Pharmacological treatment was used by 91.2% patients with hypertension whereas 85.6% patients with diabetes mellitus used oral antidiabetic drugs (OADs), and 15.4% used insulin. The FHS team itself provided antihypertensive medications to 69.0% patients with hypertension, OADs to 75.0% patients with diabetes mellitus, and insulin treatment to 65.4%. The 36.9% patients with hypertension and 29.8% with diabetes mellitus that had to buy all or part of their medications reported median monthly cost of R18.30,R 18.30, R 14.00, and R$ 27.61 for antihypertensive drugs, OADs, and insulin, respectively

    Design Specifications for an Auxiliary Incision Retractor in Dacryocystorhinostomy Surgeries

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    It is presented the design specifications for a Retractor Robotic System (RRS) based on the surgical necessities in the incisions procedure for a dacryocystorhinostomy. The specifications are conformed by a mathematical model, the experimental data measured, a modular flexible architecture, energy supplier system, the mechanical group, and the safety system. The specifications suggest that the use of flexible polymeric materials for the RRS provide a mayor adaptability of the system with the biological tissue; so a pneumatic actuator could be a suitable option.This research was funded by CONACYT (Consejo Nacional de Ciencia y Tecnología) Grant No. 86356

    Indicadores das condições nutricionais na região do polonoroeste: II. Estudo antropométrico - 1983

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    Realizou-se o estudo do estado nutricional através da antropometria com o objetivo de descrever a prevalência e a forma da Desnutrição Protéico-Energética em seis cidades da região do Polonoroeste. O exame antropométrico foi aplicado em um grupo de 573 crianças de 3 a 72 meses de idade, de ambos os sexos. Para o tratamento dos dados coletados utilizou-se as classificações propostas por GOMEZ e por WATERLOW, sendo ainda realizada a distribuição do peso e a altura por faixas de percentis. A prevalência de desnutrição encontrada, segundo a classificação de GOMEZ, foi de 51,0%, sendo que o maior percentual foi constatado na cidade de Jauru (79,2%) e o menor na cidade de Araputanga (31,3%). Quanto à forma de desnutrição a de maior prevalência foi a desnutrição pregressa, mostrando com isso um comprometimento acentuado da estatura, confirmado através da distribuição por percentis.A study of the nutritional state through anthropometry was made in order to describe the prevalence and the protein-energetic undernutrition form within six cities of Polonoroeste/MT area. The anthropometric test was done over a group of 573 children from 3 to 72 months old, of both sex. For the manipulation of the collected data, the classification proposed by GOMEZ and WATERLOW was used, being still done the distribution of weight and height in percentage ranges. Following GOMEZ classification the undernutrition prevalence met was of 51%, being that the highest percentage found was in the city of Jauru (79.2%) and the lowest in Araputanga city (31.3%). As for the undernutrition form, the highest prevalence was the past undernutrition showing an accentuated compromise of the height confirmed through the percentage distribution

    Nutritional conditions indicators in Polonoroeste Area: I. Methodological aspects and social-economic characteristics

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    O trabalho apresenta os princípios metodológicos que nortearam a organização da Pesquisa Inquérito Nutricional no Polonoroeste. Foram incluídas, também as informações sobre as características sócio-econômicas e sanitárias das famílias estudadas em 1985 na zona urbana de Cáceres-MT. Destas 74% eram radicadas em Cáceres e 13,5% provinham de outros estados ou de outros países, sendo que 76,2% residiam em zona urbana. Quanto a categoria social e renda 52% eram urbanos e 51,0% recebia menos de 2 salários mínimos. O inquérito não atingia os 2 setores mais pobres e populosos da cidade onde as condições são piores e onde vive a maioria da população que migrou mais recentemente para Caceres.The work presents the methodological principles which lead Nutritional inquires Survey of Polonoroeste/MT organization. Were, also, included the informations about the social-economic and sanitary characteristics, of families studied in 1985, in the Cáceres/MT urban zone

    Synthesis, Characterization, Dft And Td-dft Study Of The [fe(mnt)(l)(f-bunc)2] Octahedral Complex (l = Phen, Bipy)

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    FeBr2 has reacted with an equivalent of mnt2- (mnt = cis-1,2-dicyanoethylene-1,2-dithiolate) and the a-diimine L (L = 1,10-phenantroline, 2,2'-bipyridine) in THF solution, and followed by adding of t-butyl-isocyanide to give [Fe(mnt)(L)(t-BuNC)2] neutral compound. The products were characterized by infrared, UV-visible and Mössbauer spectroscopy, besides thermogravimetric and conductivity data. The geometry in the equilibrium was calculated by the density functional theory and the electronic spectrum by the time-dependent. The experimental and theoretical, results in good agreement have defined an octahedral geometry with two isocyanide neighbours. The π→ πz.ast; intraligand electronic transition was not observed for cis-isomers in the near-IR spectral, region.32718121817+S1-S2Makedonas, C., Mitsopoulou, C.A., Laholz, F.J., Balana, A.I., (2003) Inorg. Chem., 42, p. 8853. , See references inZuleta, J.A., Bevilacqua, J.M., Proserpio, D.M., Harvey, P.D., Eisenberg, R., (1992) Inorg. 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