The MIPSGAL View of Supernova Remnants in the Galactic Plane

We report the detection of Galactic supernova remnants (SNRs) in the mid-infrared (at 24 and 70 μm), in the coordinate ranges 10° < l < 65° and 285° < l < 350°, |b| < 1°, using MIPS aboard the Spitzer Space Telescope. We search for infrared counterparts to SNRs in Green's catalog and identify 39 out of 121, i.e., a detection rate of about 32%. Such a relatively low detection fraction is mainly due to confusion with nearby foreground/background sources and diffuse emission. The SNRs in our sample show a linear trend in [F_8/F_(24)] versus [F_(70)/F_(24)]. We compare their infrared fluxes with their corresponding radio flux at 1.4 GHz and find that most remnants have a ratio of 70 μm to 1.4 GHz which is similar to those found in previous studies of SNRs (with the exception of a few that have ratios closer to those of H II regions). Furthermore, we retrieve a slope close to unity when correlating infrared (24 and 70 μm) with 1.4 GHz emission. Our survey is more successful in detecting remnants with bright X-ray emission, which we find is well correlated with the 24 μm morphology. Moreover, by comparing the power emitted in the X-ray, infrared, and radio, we conclude that the energy released in the infrared is comparable to the cooling in the X-ray range

A bi‐objective procedure to deliver actionable knowledge in sport services

The increase in retention of customer in gyms and health clubs is nowadays a challenge that requires concrete and personalized actions. Traditional data mining studies focused essentially on predictive analytics, neglecting the business domain. This work presents an actionable knowledge discovery system which uses the following pipeline (data collection, predictive model, retention interventions). In the first step, it extracts and transforms existing real data from databases of the sports facilities. In a second step, predictive models are applied to identify user profiles more susceptible to dropout, where actionable withdrawal rules are based on actionable attributes. Finally, in the third step, based on the previous actionable knowledge some of the values of the actionable attributes should be changed in order to increase retention. Simulation of scenarios is carried out, with test and control groups, where business utility and associate cost are measured. This document presents a bi-objective study in order to choose the more efficient scenarios.info:eu-repo/semantics/publishedVersio

Some Remarks about Variable Mass Systems

We comment about the general argument given to obtain the rocket equation as it is exposed in standard textbooks. In our opinion, it can induce students to a wrong answer when solving variable mass problems.Comment: 2 page

Transformação e reutilização de bairros industriais

Entre o século 19 e a primeira metade do século 20, Portugal testemunhou um significativo crescimento do setor industrial com bairros industriais a emergirem dentro e nas proximidades de várias cidades. Contudo, a partir da década de 1960 até ao final do século, devido ao atraso tecnológico dos processos de produção, muitas dessas unidades industriais cessaram a sua atividade deixando os seus edifícios ao abandono, conduzindo à sua progressiva degradação. Edifícios neste tipo de condições, são geralmente indesejados para as áreas urbanas onde se encontram inseridos, levando os habitantes a afastarem-se desses locais e das suas proximidades. O objetivo deste artigo é analisar casos de transformações e reutilizações de sucesso que foram efetuadas na zona e nos edifícios do bairro de Couros, situado na cidade de Guimarães. A implementação dessas estratégias de transformação e reutilização foi muito bem-sucedida e proporcionou diversos benefícios para a cidade e para a sociedade local. Novos investimentos públicos e privados foram realizados no setor dos serviços e, atualmente, o mercado residencial está bastante ativo e com elevada procura. O presente estudo realiza uma análise dos processos de transformação e de reutilização, bem como do projeto inerente aos mesmos. Identifica ainda algumas das politicas públicas locais adotadas, boas práticas e principais barreiras encontradas, que constituem análises de casos fundamentais para a obtenção de dados, refinamento dos resultados e maximização dos esperados impactes do projeto BAMB: Buildings as Material Banks no setor dos edifícios.info:eu-repo/semantics/publishedVersio

Fluxo gênico em feijoeiro comum: ocorrência e possíveis conseqüências.

Neste documento é apresentada uma revisão sobre a capacidade de hibridização natural em Phaseolus vulgaris e suas conseqüências com relação à segurança ambiental do feijoeiro geneticamente modificado.bitstream/CNPAF/23818/1/doc_185.pd

Experimental verification of the metal flux enhancement in a mixture of two metal complexes: the Cd/NTA/glycine and Cd/NTA/citric acid systems

Rigorous computation of the metal flux crossing a limiting surface of a system that contains a mixture of 1 : 1 metal complexes under steady-state planar diffusion in a finite domain and under excess of ligand conditions predicts, for some cases, an enhancement of the metal flux with respect to that expected in a system with independent complexes. Indeed, the coupling of the dissociation kinetics of both complexes can yield higher metal fluxes than expected with important environmental implications. By using the voltammetric techniques AGNES and stripping chronopotentiometry, this paper provides experimental evidence of this enhancement for two systems: Cd/NTA/glycine and Cd/NTA/citric acid. The flux measured in both cases is in good agreement with the flux computed for the global system, exhibiting maximum enhancement ratios above 20%. Theoretical discussion of the flux enhancement factors and of the conditions for this enhancement are also provided

Street space allocation – new tools and methods, with a Lisbon application [Full paper]

The allocation of space to different uses in busy city streets is a complex and conten-tious process. Decisions to reallocate streetspace are usually based on public consulta-tion and modelling of a few street redesign options, but results are not compared sys-tematically. In addition, the set of options considered is usually incomplete. This paper proposes a new process for streetspace reallocation, including option generation (with online and physical tools), estimation of performance indicators (with microsimula-tion), and comparison of options (with a new appraisal tool). The process was applied to the redesign of a busy street in Lisbon. Several options were generated, all involving reducing the space allocated to general motorised traffic. Microsimulation showed that allocating more space to some street uses also bring benefits to other uses. The option to allocate more space to both bus users and pedestrians does not deteriorate move-ment by other modes. However, appraisal showed that some redesign options go against technical/design standards or political priorities

Medidas gerais de controle de nematóides de batata.

bitstream/CNPH-2010/36356/5/Medidas-gerais-de-controle.pd