418 research outputs found
Estudo de dois museus de ciências brasileiros problematizados a partir da perspectiva CTS e paradigma da complexidade
No Brasil os Museus de Ciências surgem com uma forte relação com a escola. Com efeito, tanto a organização de materiais para as suas exposições, como a atuação educacional junto à comunidade de professores, assumem um caráter didático pedagógico voltado para os estudantes da educação básica, que representam o grande público visitante dessas instituições. Consequentemente, a organização das exposições apresentam experiências clássicas de ciências, muito semelhantes às encontradas em livros didáticos e as utilizadas em salas de aula. Propomos problematizar, a partir da perspectiva CTS e do Paradigma da Complexidade, as características presentes nos aparelhos, artefatos e exposições de dois Museus de Ciências procurando evidenciar até que ponto esses espaços têm contribuído para a compreensão da população da ciência como cultura
Inequality and Spatial Convergence in the Mexico City Metropolitan Area, 1989-2010
The analysis of inequality and polarization patterns between by regions of a national economy is central to ascertain their possibilities of future economic development. In this work we study such patterns in municipalities and boroughs of Mexico City Metropolitan Area (Zona Metropolitana de la Ciudad de Mexico, ZMCM). The evolution of inequality and polarization in this important area of Mexico is studied with new proposals of measurement using spatially conditioned indexes and through a dynamic transition analysis. The results confirm that the territorial inequality has grown among the municipalities and boroughs that integrate the ZMCM. Moreover, this phenomenon coincides with an increase of the polarization characterized by the formation of four subgroups or convergence clubs
The SIMPLE Phase II Dark Matter Search
Phase II of SIMPLE (Superheated Instrument for Massive ParticLe Experiments)
searched for astroparticle dark matter using superheated liquid
CClF droplet detectors. Each droplet generally requires an energy
deposition with linear energy transfer (LET) 150 keV/m for a
liquid-to-gas phase transition, providing an intrinsic rejection against
minimum ionizing particles of order 10, and reducing the backgrounds to
primarily and neutron-induced recoil events. The droplet phase
transition generates a millimetric-sized gas bubble which is recorded by
acoustic means. We describe the SIMPLE detectors, their acoustic
instrumentation, and the characterizations, signal analysis and data selection
which yield a particle-induced, "true nucleation" event detection efficiency of
better than 97% at a 95% C.L. The recoil- event discrimination,
determined using detectors first irradiated with neutrons and then doped with
alpha emitters, provides a recoil identification of better than 99%; it differs
from those of COUPP and PICASSO primarily as a result of their different
liquids with lower critical LETs. The science measurements, comprising two
shielded arrays of fifteen detectors each and a total exposure of 27.77 kgd,
are detailed. Removal of the 1.94 kgd Stage 1 installation period data, which
had previously been mistakenly included in the data, reduces the science
exposure from 20.18 to 18.24 kgd and provides new contour minima of
= 4.3 10 pb at 35 GeV/c in the
spin-dependent sector of WIMP-proton interactions and = 3.6
10 pb at 35 GeV/c in the spin-independent sector. These
results are examined with respect to the fluorine spin and halo parameters used
in the previous data analysis.Comment: 20 pages, 19 figures; accepted Physical Review
A Novel Remaining Useful Estimation Model to Assist Asset Renewal Decisions Applied to the Brazilian Electric Sector
Assets deteriorate over time, as well as being covered, corroded, or becoming old in less obvious ways. Maintenance can extend the remaining useful life (RUL) of an asset system, but sooner or later it must surely be replaced. In this study, we propose a new RUL estimation methodology to assist in decision making for the maintenance and replacement of assets from prioritizing equipment in a renovation plan. Our methodology uses advanced data analysis techniques that consider multiple competing criteria with the goal of maximizing values of the asset throughout its life cycle, while considering the rules of remuneration and service quality of the current regulation, as well as the values at risk according to the decisions and actions taken. Experimental results with real datasets show the efficiency of the proposed approach. Finally, this work also presents the development of an analytical tool to optimize asset renewal decisions applying the RUL estimation methodology proposed and its application to the Brazilian electric sector
Scattering images from autocorrelation functions of P-wave seismic velocity images : the case of Tenerife Island (Canary Islands, Spain)
We thank Edoardo Del Pezzo for the valuable idea of this paper and suggestions regarding the methodology. J. Prudencio is partially supported by NSF1521855 Hazard SEES project. This paper has been partially supported by the Spanish project KNOWAVES (TEC2015-68752-R (MINECO/FEDER)), the European project MED-SUV funded by the European Union’s Seventh Framework Program for research, technological development and demonstration under Grant Agreement No 308665, and by the Regional project ‘Grupo de Investigación en Geofísica y Sismología de la Junta de Andalucía, RNM104’.Peer reviewedPostprin
Departamento de Informática do SUS – DATASUS: a gestão de dados de saúde no Brasil e sua contribuição para a inclusão digital
It discusses the creation and performance of the Department of Informatics of the Unified Health System, a Brazilian public agency subordinated to the National Health Foundation. It discusses the aspects related to the right of information to the people assisted, about their own health. It also analyzes the information infrastructure of DATASUS and its relationship with data management in health information. Exploratory-descriptive research, uses bibliographic and documentary procedures for data collection and quantitative and qualitative approach for data analysis. It suggests that Brazilian librarians engage in activities to promote informational competence in health and therefore recommends support in the good practices, models and infrastructures existing in DATASUS
Departamento de Informática do SUS – DATASUS: a gestão de dados de saúde no Brasil e sua contribuição para a inclusão digital
It discusses the creation and performance of the Department of Informatics of the Unified Health System, a Brazilian public agency subordinated to the National Health Foundation. It discusses the aspects related to the right of information to the people assisted, about their own health. It also analyzes the information infrastructure of DATASUS and its relationship with data management in health information. Exploratory-descriptive research, uses bibliographic and documentary procedures for data collection and quantitative and qualitative approach for data analysis. It suggests that Brazilian librarians engage in activities to promote informational competence in health and therefore recommends support in the good practices, models and infrastructures existing in DATASUS
Informacionistas de pesquisa: oportunidades para bibliotecários na era do Big Data
This work identifies, characterizes and analyzes the competencies, knowledge and skills required for the performance of health science librarians as research informationists. This research has the following guiding question: How can the researcher contribute to the development of data search and dissemination strategies in the area of Health Sciences in Brazil? It develops a quasi-systematic review. The study is characterized as bibliographic, as to the means; and exploratory-descriptive, with regard to its objective. A qualitative approach is used for data analysis and demonstration of results. It presents the research informationist concept, its competencies, attributions and, at the same time, its contributions to the data management process in the big data era. It concludes that Brazilian librarians should seek an adaptation of their training in order to take advantage of the new opportunities that will be placed, including for the greater valorization of the profession and the creation of a bond of trust and partnership between librarians and researchers
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