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Search Results: 1 - 10 of 84 matches for " Formoso "
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Metodologias para o desenvolvimento de sistemas especialistas para planejamento em constru??o
Formoso, Carlos Torres;
Produ??o , 1993, DOI: 10.1590/S0103-65131993000100001
Abstract: several knowledege based systems have been produced in the last decade, both in the industry and in research institutes. some of these applications have been used in practical situations, but most of them have not been developed beyond the prototype stage. such systems are usually desingned through an informal and empiric process which involves the implementation of a simple prototype of the system in the early phases of knowledge acquisition. this approach has beem widely criticized because it can make both the re-implementation and updating of knowledege bases cubersome, and seriously distort the way knowledge is represented. for this reason, a number of more formal methodologies for developing knowledge based systems have been proposed in recent years. although such methodologies have provided some useful advice, none of them has yet proved to be applicable as whole in a wide range of situations. the first part of this paper consists of a general review of some of the existing formal methodologies. in the second part, the approach used for developing a knowledge based system for planning house building projects, named house planner, is discussed.
Some topics on geochemistry of weathering: a review
Formoso, Milton L.L.;
Anais da Academia Brasileira de Ciências , 2006, DOI: 10.1590/S0001-37652006000400014
Abstract: weathering is a complex process comprising physical disaggregation, chemical and biological decomposition of rocks and minerals transforming complex structure minerals in simpler ones. hydrolysis of silicates is perhaps the most important process but associated certainly to biological weathering. it is discussed the role ofwaters: activities/concentrations of chemical species, ph, eh, importance of complexes. weathering is not only a destructive process. it can concentrate chemical species and form mineral deposits (kaolin, bauxite, fe, mn, p, nb, au). weathering studies are important in pedology, engineering geology, hydrogeology, paleoclimatology and ecology. the use of stonemeal is based upon the study of rock weathering.
Fatores-chave de sucesso para sistemas de indicadores de desempenho para benchmarking colaborativo entre empresas construtoras
Costa, Dayana Bastos;Formoso, Carlos Torres;
Ambiente Construído , 2011, DOI: 10.1590/S1678-86212011000300011
Abstract: in recent years, several initiatives have been undertaken to develop benchmarking clubs and performance measurement systems for benchmarking, in different countries. these clubs consist of collaborative groups, providing an environment in which companies can acquire and share knowledge. however, little is known about the conditions under which effective networking takes place and the real benefits achieved by the companies involved. the aim of this paper is to identify key successful factors to build performance measurement systems for benchmarking through a collaborative process among construction companies. this paper also presents the definition of a set of indicators for benchmarking, a framework to evaluate the maturity level of the companies' performance measurement system, as well as the identification of the performance improvements in the companies' measurement system the research strategy adopted in this study was action research, in which a group of twenty construction companies was involved.
Método para avalia??o da qualidade de processos construtivos em empreendimentos habitacionais de interesse social
Berr, Letícia Ramos;Formoso, Carlos Torres;
Ambiente Construído , 2012, DOI: 10.1590/S1678-86212012000200006
Abstract: the difficulties of controlling, maintaining and improving the quality of construction processes have been pointed out in several studies, despite the dissemination of the certification of quality management systems in brazil. in the case of the social interest housing subsector, construction companies operate in a context of high level of activities and limited profit margins, which demands the quality of processes to be controlled in order to avoid waste. this research work proposes a method for assessing quality of construction processes in terms of conformance in social interest housing projects. the processes that most affect the quality of housing projects were identified based on the literature, on the perception of experts, and on complaints from users. the data obtained results in a set of quality indicators related to the conformance of construction processes. the main contribution of this investigation is the proposed method, and the indicators of process compliance obtained during its implementation. data were collected in projects from the metropolitan region of porto alegre, and from caxias do sul, and pelotas, in the state of rio grande do sul.
Three Theoretical Perspectives for Understanding Inter-firm Coordination of Construction Project Supply Chains
Carlos Torres Formoso,Eduardo Luis Isatto
Australasian Journal of Construction Economics and Building , 2011,
Abstract: The success of construction projects is highly dependent on the coordination of a fairly large number of stakeholders, such as client organizations, designers, general contractors, and subcontractors. Each of those stakeholders can both affect and be affected by the way a project is managed, and none of them usually has the power or the ability to coordinate project supply chains. However, the existing literature on supply chain management does not provide a comprehensive theoretical foundation for describing or explaining the coordination of construction project supply chains. This paper discusses the role of three different theoretical perspectives for understanding the inter-firm coordination process of project supply chains in the construction industry: the Theory of Coordination, the Transaction Cost Theory and the Language-Action Perspective. The contribution of each theoretical approach is pointed out in the paper, and their complementary role is illustrated in a case study carried out in a petrochemical construction project in Brazil.
Do coxibs reduce prescription of gastroprotective agents? Results of a record linkage study
Giulio Formoso, Angelo Menna, Claudio Voci, Andrea Violante, Nicola Magrini
Cost Effectiveness and Resource Allocation , 2006, DOI: 10.1186/1478-7547-4-4
Abstract: A record-linkage study was performed using 2001 outpatient prescription data from the province of Modena (about 632,000 inhabitants, in Northern Italy). Logistic regression was used to calculate the odds ratio of GPA prescription for coxib and non-selective NSAID adult users (> 14 years). Three categories of users were further investigated: "acute", "chronic and "incident or new". Main outcome measures were same-day co-prescription and 30 days prescription of GPAs in coxibs and non selective NSAIDs users. To limit selection bias, data were adjusted for age, sex, DDD of coxibs and non selective NSAIDs received during 2001, DDD of GPAs and (for non-incident users) DDD of NSAIDs received during the previous 4 yearsSame day co-prescription rates were similar considering the overall population and "acute" users. Chronic coxibs users instead showed higher co-prescription rates than chronic NSAIDs users (OR = 1.2, p < 0.05). GPA prescription within thirty days was also higher among all subgroups of coxibs users (OR ranging from 1.6 to 2.0, p < 0.001).Assumptions made in pharmacoeconomic analyses on coxibs (lower GPA prescription associated with coxibs use) may be overly optimistic. Claims made through cost-effectiveness data should be carefully interpreted, and mechanisms for attributing drug prices revised accordingly.Pharmacoeconomic analyses are used to highlight potential advantages of new drugs over older ones by showing, in general, that higher effectiveness and/or less frequent side effects may be worth the (generally) higher cost. Assumptions and findings from these analyses may not reflect everyday practice yet, as real life prescription and use of marketed drugs may be different from that observed in Randomised Controlled Trials and/or assumed in economic models.Coxibs were found to have higher gastrointestinal tolerability than traditional NSAIDs, but their overall safety profile is controversial in light of cardiovascular risks demonstrated for rofecoxib, celec
Morfometría, peso corporal y dieta invernal de la Agachona Chica Thinocorus rumicivorus en la provincia de Buenos Aires
Aramburú,Rosana; Formoso,Anahí; Arambarri,Ana M.; Montalti,Diego;
El hornero , 2007,
Abstract: the southern subspecies of the least seedsnipe (thinocorus rumicivorus rumicivorus) inhabits steppes, water meadows and lagoons, and in argentina it occurs in patagonia. during the winter it migrates to central chile and northeastern argentina and uruguay. farmers believe that these migrating birds feed on their winter crops and apply chemical control methods on them. since information on the biology of the least seedsnipe is scarce, we analyzed eight specimens captured in an oilseed rape (brassica napus) crop in chillar, buenos aires province, in july 2004. mean body weight of the specimens was 54.3 g. no significant morphometric differences were noted between sexes. mean stomach content weight was 0.42 g, and vegetal contents ranged between 11-67%. the remaining stomach contents were mineral fragments. in decreasing order of predominance, seeds of the following families were found: polygonaceae, poaceae, cyperaceae, fabaceae, convolvulaceae, chenopodiaceae, and asteraceae. no rests of oilseed rape were found in any of the analyzed stomach contents. we infer that least seedsnipe feeds mostly on vegetation growing as weeds in crops. being this species a target of chemical control by buenos aires farmers, we recommend that more thorough diet and foraging studies should be carried out.
Avalia??o de empreendimentos habitacionais de interesse social com base na hierarquia de valor percebido pelo usuário
Bonatto, Fernanda Sbaraini;Miron, Luciana Inês Gomes;Formoso, Carlos Torres;
Ambiente Construído , 2011, DOI: 10.1590/S1678-86212011000100006
Abstract: the evaluation of projects is very important for the effort of improving social housing, making it possible to support the assessment of results, and the identification of errors and achievements in relation to the project objectives and actions. however, the diversity and dynamics of housing programs and the lack of clarity in project objectives may hinder the evaluating process of this type of product. often, the evaluation of social housing projects is focused on product attributes, without establishing a clear connection with the expected objectives. in this paper, a model for structuring the evaluation of social housing projects is proposed, adopting a value hierarchy that links the attributes to the consequences of use and intended goals. this model is not aimed to a specific housing program, and is based on the idea of extended products, i.e. it is not limited to the physical products. the main contributions of the study refer to the mapping of the social housing product, as well as to the identification of influences between the assessment of the product attributes, and the results expected by managers and perceived by customers.
Estimativa de modelos de pre?os hed?nicos para loca??o residencial em Porto Alegre
Gonzalez, Marco Aurélio Stumpf;Formoso, Carlos Torres;
Produ??o , 1995, DOI: 10.1590/S0103-65131995000100004
Abstract: this research work aim at investigating the behavior of the real estate market of the city of porto alegre, through the use of multiple variable statistical models, which explain the value formation of housing rents. the models developed were based on a sample of 504 apartments, from several different areas of the city, offered in the market during july 1992. the universe is all properties offered in that period. the models developed were based on a sample of 504 apartments, extracted of the total of 1819. in that apartments, a number of variables had their influence in the value of rent investigated, like building condition and proximity conditions, completed by information of public institutions. the data were tested by factor and regression analysis, with the compilation of econometric models (hedonic). in various aggregation levels. the analysis demonstrated what the market can to be explicated by this models, what present significative differences, according to data collection, but permit the obtainment of models for all dwellings and a best understanding of working of real estate market
Distribution and Potential Mobility of Selected Heavy Metals in a Fluvial Environment Under the Influence of Tanneries
Rodrigues M. L. K.,Formoso M. L. L.
E3S Web of Conferences , 2013, DOI: 10.1051/e3sconf/20130132002
Abstract: In this study we evaluated the occurrence of heavy metals in a fluvial environment under the influence of tanneries – the Cadeia and Feitoria rivers basin (RS, south Brazil), highlighting the distribution and potential mobility of the selected elements. Every three months, over one year-period, selected heavy metals and ancillary parameters were analyzed in water and sediment samples taken at ten sites along the rivers. Water analyses followed APHA recommendations, and sediment analyses were based on methods from USEPA (SW846) and European Community (BCR sequential extraction). The determinations were performed by ICP/OES, except for Hg (CV/ETA). Statistical factor analysis was applied to water and sediment data sets, in order to obtain a synthesis of the environmental diagnosis. The results revealed that water quality decreased along the rivers, and mainly on the dry period (January), showing the influence of tannery plants vicinity and flow variations. Except for Fe, Al, and eventually Mn, heavy metal contents in water were in agreement with Brazilian standards. Concerning sediments, Al, Cu, Fe, Ni, Mn, Ti, and Zn concentrations appeared to reflect the base levels, while Cr and Hg were enriched in the deposits from the lower part of the basin. The partition of heavy metals among the sediment geochemical phases showed higher mobility of Mn along the sampling sites, followed by Cr in the lower reach of the basin, most affected by tanneries. Since Cr was predominantly associated to the oxidizable fraction, its potential mobilization from contaminated sediments would be associated to redox conditions. The detection of Hg in the tissue of a bottom-fish species indicated that the environmental conditions are apparently favoring the remobilization of this metal from contaminated sediments.
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