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Sample records for brazilian cnen

  1. Management report 2007 CNEN - Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    2007-01-01

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2007, involving the CNEN role in the public policy execution, the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, teaching, administration in general and miscellaneous

  2. Management report 2004 CNEN - Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    2005-03-01

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2004, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous

  3. Management report 2006 CNEN - Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    2007-03-01

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous

  4. Management report 2005 CNEN - Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    2006-03-01

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous

  5. Management report 2007 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2007 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-07-01

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2007, involving the CNEN role in the public policy execution, the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, teaching, administration in general and miscellaneous.

  6. CNEN activities and brazilian nuclear power policy

    International Nuclear Information System (INIS)

    Costa, E.M. da

    1989-01-01

    The goal of the brazilian policy in nuclear power is to provide its use in a pacific way to promote the well being of our people. It is intended, as well, to finish the construction of Angra II and III and proceed with the implementation of the nuclear fuel cycle, progressively fomenting its nationalization. (A.C.A.S.)

  7. Management report 2004 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2004 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2005-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2004, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  8. Management report 2005 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2005 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2006-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  9. Management report 2006 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2006 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2007-03-15

    This document reports the results of the activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2005, involving the Brazilian program of nuclear activities in the areas of nuclear safety, research and development, radiopharmaceutical production, institutional management, teaching, administration in general and miscellaneous.

  10. Management report 2003 CNEN - Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    2004-03-01

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2003, involving the government programs in the areas of nuclear safety, medicine application, technological development, administration and miscellaneous

  11. National Laboratory of Ionizing Radiation Metrology - Brazilian CNEN

    International Nuclear Information System (INIS)

    1992-01-01

    The activities of the Brazilian National Laboratory of Ionizing Radiations Metrology are described. They include research and development of metrological techniques and procedures, the calibration of area radiation monitors, clinical dosemeters and other instruments and the preparation and standardization of reference radioactive sources. 4 figs., 13 tabs

  12. Management report 2003 CNEN - Brazilian Nuclear Energy Commission; Relatorio de gestao 2003 CNEN - Comissao Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2004-03-15

    This document reports the general activity management of the Comissao Nacional de Energia Nuclear - CNEN - Brazil during the year of 2003, involving the government programs in the areas of nuclear safety, medicine application, technological development, administration and miscellaneous.

  13. Female Contributions in Nuclear Science: Experiences at the Brazilian Commission for Nuclear Energy (CNEN/LAPOC)

    International Nuclear Information System (INIS)

    Carrijo da Silva Dias, D.; Leandro Bonifácio, R.; Augusto da Silva Alfenas, R.

    2015-01-01

    Female professional contributions in nuclear science and technology are no longer a novelty. Names such as Marie Curie, Chen Shiung Wu and Rosalyn Yalow are evidence of the incessant, worldwide efforts of women to take part in fields largely reserved for men. Although society has witnessed high level female achievements as early as in the 1800s, female scientists and technicians still face a long journey ahead in empowering themselves into full and equal participation in these areas. Today, the Laboratory of Poços de Caldas of the Brazilian Commission for Nuclear Energy (CNEN/LAPOC) experiences a process of women empowerment at all levels of the institution. At the Technical Section, two of the seven research departments are headed by female researchers who play essential roles in the institution’s quest for excellence. Today, their work include coordination of a major environmental research project involving most researchers at LAPOC, successful participations on international intercomparisons of radiometric analysis and development of new methodologies in nuclear field applications. At the administrative level, female collaborators lead the Administration Section, improving several aspects of internal management, promoting further interaction at the workplace and strengthening cooperation among all departments. Regarding the capacitation level, the Commission has a long tradition of welcoming students and junior researchers through institutional programmes of training and collaboration in several projects. Today CNEN/LAPOC works with twenty scholarship grantees — half of which are women. Not only the Laboratory has reached equality in participation, but unarguably the female participants have demonstrated the most remarkable achievements among the group, attested by their continuous academic pursuit through Master’s and Doctoral degrees, full collaboration in scientific publishing and attendance in training programmes at international level. The purpose

  14. Database created with the operation of environmental monitoring program from the Nuclear Technology Development Center (CDTN) - Brazilian CNEN

    International Nuclear Information System (INIS)

    Peixoto, C.M.

    1995-01-01

    The environmental control from the Nuclear Technology Development Center (CDTN - Brazilian CNEN) is done through a Program of Environmental Monitoring-PMA, which has been in operation since 1985. To register all the analytic results of the several samples, samples, a database was created. In this work, this database structure as well as the information used in the evaluation of the results obtained from the operation of the above-mentioned PMA are presented. (author). 5 refs, 1 fig, 3 tabs

  15. Proceedings of the 2. SIPEN: Integration week from IPEN - Brazilian Institute for Energy and Nuclear Researches, CNEN/SP

    International Nuclear Information System (INIS)

    1994-01-01

    The technical-scientific activities of IPEN (Instituto de Pesquisas Energeticas e Nucleares), Brazilian CNEN, has been presented in these proceedings. It includes the following topics: management and logistics, infra-structure and support, application of nuclear techniques, fuel cycle, materials, reactor research, development of products and services, radiation protection and monitoring. Nuclear medicine and application of radiation in biological assays are studied. Environmental impacts and management of radioactive wastes are also presented

  16. Portfolio of patents after the Brazilian Innovation Act: the case of the Comissao Nacional de Energia Nuclear - CNEN (Brazilian National Nuclear Energy Commission)

    International Nuclear Information System (INIS)

    Pereira, Gustavo Jose; Guimaraes, Regia Ruth Ramirez; Perry, Katia da Silva Peixoto; Teruya, Dirceu Yoshikazu

    2013-01-01

    The process of technological development is due to the need to promote a solution to a particular problem of agents, compete with products and/or processes on the international market and to promote scientific advancement. Thus, the patent system is a repository of knowledge for protection, for promotion of diffusion through licensing agreements and an indicator of technological development. In 2004, the Brazilian Government enacted the Brazilian Innovation Act and the mechanisms were improved for cooperation between firms and public education, science and technology organisations and also promoted the commercialisation of technology produced by public education, science and technology organisations and the mandatory establishment of Technology Transfer Offices. The Comissao Nacional de Energia Nuclear (CNEN) is a federal agency responsible for basic and applied research in the field of nuclear technology and has used the patent system since the 1980s to protect its knowledge. With the advent of the Innovation Act in 2004, there was a significant boost in requests for patents in CNEN which also established an internal set of normative acts and created a System of Innovation Management and Technology Innovation Offices in its research institutes to support management and dissemination of knowledge. The aim of this case study is to present the profile of the requests for patents by CNEN before and after the enactment of the Brazilian Innovation Act covering the period of time between 1980 and 2010. (author)

  17. Review of Brazilian activities related to the thorium fuel cycle and production of thorium compounds at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Lainetti, Paulo E.O.; Freitas, Antonio A.; Mindrisz, Ana C.

    2013-01-01

    The Brazilian's interest in the nuclear utilization of thorium has started in the 50's as a consequence of the abundant occurrence of monazite sands. Since the sixties, IPEN-CNEN/SP has performed some developments related to the thorium fuel cycle. The production and purification of thorium compounds was carried out at IPEN for about 18 years and the main product was the thorium nitrate with high purity, having been produced over 170 metric tons of this material in the period, obtained through solvent extraction. The thorium nitrate was supplied to the domestic industry and used for gas portable lamps (Welsbach mantle). Although the thorium compounds produced have not been employed in the nuclear area, several studies were conducted. Therefore, those activities and the accumulated experience are of strategic importance, on one hand due to huge Brazilian thorium reserves, on the other hand by the resurgence of the interest of thorium for the Generation IV Advanced Reactors. This paper presents a review of the Brazilian research and development activities related to thorium technology. (author)

  18. National Laboratory of Ionizing Radiation Metrology - Brazilian CNEN; Laboratorio Nacional de Metrologia das Radiacoes Ionizantes

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    The activities of the Brazilian National Laboratory of Ionizing Radiations Metrology are described. They include research and development of metrological techniques and procedures, the calibration of area radiation monitors, clinical dosemeters and other instruments and the preparation and standardization of reference radioactive sources. 4 figs., 13 tabs.

  19. National Laboratory of Ionizing Radiation Metrology - Brazilian CNEN; Laboratorio Nacional de Metrologia das Radiacoes Ionizantes

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1992-12-31

    The activities of the Brazilian National Laboratory of Ionizing Radiations Metrology are described. They include research and development of metrological techniques and procedures, the calibration of area radiation monitors, clinical dosemeters and other instruments and the preparation and standardization of reference radioactive sources. 4 figs., 13 tabs.

  20. Brazilian Institute for Radiation Protection and Dosimetry (IRD/CNEN-RJ): Report 2000-2010

    International Nuclear Information System (INIS)

    2010-01-01

    This report presents the activities of the Institute for Radiation Protection and Dosimetry of the Brazilian Nuclear Energy Commission from 2000 to 2010 and has eight chapters: 1) history; 2) main designations and attributions; 3) metrology and assays; 4) conformity evaluation; 5) assistance to radiological and nuclear emergencies; 6) capacity and training; 7) infrastructure of information technology and 8) operational indicators

  1. Considerations about the impact of the Convention on Nuclear Safety on the regulatory action of the CNEN in Brazilian nuclear power plants

    International Nuclear Information System (INIS)

    Camargo, Claudio; Pontedeiro, Auro

    1995-01-01

    Preliminary discussion is conducted about the impact of the terms of the Convention on Nuclear safety, adopted by Diplomatic Conference in September 1994 in the International Atomic Energy Agency, on the regulatory action of Brazilian Nuclear Regulatory Body - CNEN. Following the Convention articles structure, the paper emphasizes technical aspects of the nuclear safety standards adopted in the licensing process of Brazilian Nuclear Power Plants. The recent experience in the issuance of Angra-1 NPP Permanent Operation Authorization is used to demonstrate that current safety standards in Brazil are in compliance with the international compromises and in agreement with what is expected by the so called Safety Culture. (author). 9 refs

  2. Neutron spectrum survey around the cyclotron of IEN/Brazilian CNEN: calibration of neutron personnel dosemeter

    International Nuclear Information System (INIS)

    Fajardo, P.W.

    1991-01-01

    The albedo neutron dosimeter is calibrated directly at the work place due to its high energy dependence. This thesis deals with the study, analysis and application of neutron measurement techniques in order to obtain information about the neutron spectrum and neutron dose equivalent at several representative working places of the cyclotron laboratory of the Nuclear Engineering Institute (IEN). These data are employed mainly in the calibration of the brazilian albedo neutron dosimeter. Bonner spheres and foil activation were used in neutron spectra measurements and the neutron dose equivalents were measured with the single sphere albedo technique. BF 3 and 3 He proportional detectors and 6 LiI scintillation detector were also used in these measurements. The single sphere technique turned out to be more appropriate for neutron dosimetry for calibrating the albedo dosimeter in the varying fields of the cyclotron. Calibration the albedo dosimeter in the varying fields of the cyclotron. Calibration factors were found for routine applications, when the workers are protected by shielding and for radiological accident applications, in the case that a worker is exposed inside the cyclotron room. In all situations the performance of the brazilian albedo dosimeter is compared with that of the german albedo dosimeters. (author)

  3. Evaluation of radiological safety in industrial gammagraphy services during the construction of Bolivia-Brazil gas transmission lines (GASBOL), by regulatory inspections from brazilian CNEN

    International Nuclear Information System (INIS)

    Aquino, Josilto O. de; Silva, Francisco Cesar A. da; Leocadio, Joao Carlos; Pinho, Adaugoberto S. de; Souza, Luiz Antonio C. de; Lourenco, Manoel J.; Nicola, Marcello S.; Melo, Ivan F.

    2001-01-01

    This paper presents a brief description of the Brazilian Regulatory Authority's (National Commission of Nuclear Energy - CNEN) action about safety control on industrial radioactive installations. It shows some specific radiation safety inspections that were done during the construction of the Bolivia-Brazil Gas Transmission Line (GASBOL). In this GASBOL work, it was used industrial radiography sources for weld quality control. During two years were done thirty regulatory safety inspections in these movable installations that use gamma radiography devices. As final result, it was noticed that the national system of inspection to control the safe use of radioactive sources in industrial activities is really efficient because none overexposure was detect and every CNEN's recommendations were applied by the operators. Some result about the gamma devices and violations are also showed. (author)

  4. The Brazilian National Intercomparison Program (PNI/IRD/CNEN): evaluation of 15 years of data

    International Nuclear Information System (INIS)

    Tauhata, Luiz; Vianna, Maria Elizabeth Couto M.; Oliveira, Antonio Eduardo de; Ferreira, Ana Cristina; Braganca, Maura Julia C.; Clain, Almir Faria; Quelvia de Faria, Rute

    2006-01-01

    The Instituto de Radioprotecao e Dosimetria has been coordinating the National Intercomparison Program (PNI) for 15 years, from 1991 to 2005. The objective is to evaluate the analytical performance of the laboratories in low-level activity concentration radionuclide assays in environmental samples. This work presents an evaluation of PNI data from 42 intercomparison runs, which distributed to 22 Brazilian laboratories 2511 samples evaluating 5768 radionuclide assays involving 32 radionuclides in the period from 1991 to 2004. The laboratory performance was evaluated using the Normalized Standard Deviation used by the U.S. EPA. For comparison aims, the Normalized Deviation, used by BIPM was also applied. Laboratory performance were grouped and evaluated in three periods of 5 years each. The first period shows, an average value of good performance of 71.2%, the second shows an average of 78.6% and the last an average of 82.3%. Performance for each kind of radionuclide is also presented

  5. I.R.D. annual report - 1988. Institute of Radioprotection and Dosimetry of Brazilian Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    1989-01-01

    This is the annual report of the activities developed by the Institute of Radioprotection and Dosimetry -IRD/CNEN-Brazil, in the year of 1988. It is composed by the individual reports of its several divisions, describing the main activities and personnel: DEPRO - Occupational and Radiological Protection Dept.; DEPRA - Environmental and Radiological Protection Dept.; DEMET - Metrology Dept.; DEPAT - Technical Support Dept.; DETAC - Scientific Support and Training Dept.; DEPAD -Administrative Support Dept. (J.A.M.M.)

  6. Production and sharing of the nuclear knowledge: knowledge management at the Radiopharmaceutical Division of the Instituto de Engenharia Nuclear of Brazilian CNEN

    International Nuclear Information System (INIS)

    Bettencourt, Marcia Pires da Luz

    2011-01-01

    The Brazilian nuclear area made great progress in recent years, bringing many benefits to society, not only in producing electric power, but also in agriculture, industry and medicine. One of the problems in this area, nowadays, is the risk losing nuclear knowledge. Although it is difficult to understand how knowledge is created and used, can be seen that the sharing and production are influenced by some factors that provide favorable conditions. This research focused its attention on identifying actions that contribute to the production and sharing of knowledge and information at the Divisão de Radiofármacos of Instituto de Engenharia Nuclear of Comissão Nacional de Energia Nuclear (IEN/CNEN). Knowledge management was chosen as a tool to study the problem identified, because it has methodologies aimed at stimulating the knowledge production process and knowledge and information sharing, both in private companies and public institutions, such as IEN/CNEN. Knowledge management is an interdisciplinary relatively new discipline, and although it had not been born in Information Science, there has been seeking theoretical support and legitimacy at this interdisciplinary science. This research conceptualizes, historically contextualizes and analyzes developments and trends in knowledge management. The study discourses on the peculiarities and aspects in common between the knowledge management and information management and identifies factors that influence the sharing of information and knowledge such as: social networks, communities of practice, collaborative spaces, organizational culture, organizational learning, and storytelling. In reviewing the literature and after data analysis of interviews, some actions have been identified, and it was possible to make some suggestions. It is concluded that institutional incentive for collaboration and knowledge sharing can influence positive results and increase the production of new knowledge. (author)

  7. The implementation of CP1 computer code in the Honeywell Bull computer in Brazilian Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    Couto, R.T.

    1987-01-01

    The implementation of the CP1 computer code in the Honeywell Bull computer in Brazilian Nuclear Energy Comission is presented. CP1 is a computer code used to solve the equations of punctual kinetic with Doppler feed back from the system temperature variation based on the Newton refrigeration equation (E.G.) [pt

  8. A model for environmental scanning oriented for the strategic planning of the Brazilian Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    Braga, Fabiane dos Reis

    1997-01-01

    Presently, all the organizations involved with nuclear activities must be one step ahead of what happens in the specific activity areas in order to avoid surprises, to guarantee their activity continuity and the objective extents, and taking into account the external environment influence exercised by the organization on their activities. So, it is necessary a continuous follow up of their transformations. This paper aims to structure a model of the environmental monitoring system oriented to the strategic planning of the Brazilian Nuclear Energy Commission, as function of that new informational needs viewing the fulfilment of that observed gap. (author)

  9. Personnel dosimetry of extremities by using Harshaw rings XD-100 at Centro Regional de Ciencias Nucleares, CRCN, Brazilian CNEN

    International Nuclear Information System (INIS)

    Lima, Ricardo de Andrade; Vilela, Eudice; Nogueira, Maria do Socorro; Ferreira Filho, Alfredo Lopes; Castro, Walber Amorim

    2000-01-01

    Data concerning calibration and type tests of an extremity system based on XD100 rings (Harshaw) are presented. Dosemeter used is a thermoluminescent chip inserted in a sealed pouch and was read out using a Harshaw 6600 reader. The dosimetric system complied with all ISO/DIS 12794-1 draft report suggested tests, in which this work was based on. This work obtained results point to the applicability of those recommendations to Brazilian institutes and suggest its adoption by the national regulatory commission. (author)

  10. Bridging Nuclear Knowledge to a Brazilian Decree: A Case Study at the National Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    Muguet-Haisman, T. M.

    2016-01-01

    Full text: Since the term“knowledge management”was coined, it has gained more and more attention in an effort to re-structure organizations. A good deal of effort has been done in order to better implement a knowledge management culture in organizations throughout all the work sectors. The Brazilian Federal Government through the Decree no.5.707, dated February 23, 2006, democratically created a national policy for human development. This initiative made equally available additional education opportunities for all staff in order to form a competent workforce which included official recognition of work-related skills. In the field of nuclear energy, the National Nuclear Energy Commission is a Brazilian governmental authority which has long served as the leader in the matter. In this respect, and in the light of the International Atomic Energy Agency (IAEA) nuclear knowledge management role and the perspective of the first and third dimensions, the aim of this paper is to share the outcome of the Government programme in the National Nuclear Energy Commission. (author

  11. CNEN resolution phohibits radioactive lightning rods

    International Nuclear Information System (INIS)

    1989-01-01

    After 15 years of irrestricted use in Brazil, the radioactive lightning rods were phohibited by Brazilian CNEN since the publication of a new law (Resolution number 4 of april 19,1989) published on may 9, 1989. All the existing ones will be removed at the time of their programed maintenance. (A.C.A.S.) [pt

  12. A model for environmental scanning oriented for the strategic planning of the Brazilian Nuclear Energy Commission (CNEN); Um modelo de monitoramento ambiental (environmental scanning) orientado para o planejamento estrategico da CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Braga, Fabiane dos Reis

    1997-07-01

    Presently, all the organizations involved with nuclear activities must be one step ahead of what happens in the specific activity areas in order to avoid surprises, to guarantee their activity continuity and the objective extents, and taking into account the external environment influence exercised by the organization on their activities. So, it is necessary a continuous follow up of their transformations. This paper aims to structure a model of the environmental monitoring system oriented to the strategic planning of the Brazilian Nuclear Energy Commission, as function of that new informational needs viewing the fulfilment of that observed gap. (author)

  13. Northeast project/CNEN

    International Nuclear Information System (INIS)

    Alves, R.N.; Ribeiro, G.F.; Lima, J.O.V.; Dornelles, G.H.; Laborne, J.J.; Sakamoto, L.H.; Lemos Junior, O.F.

    1987-10-01

    The subprojects from the Northeast/CNEN project, that aims to disseminate the benefits of nuclear energy are described. Those subprojects are the following: food conservation, energy, health, hydric resources, mineral and agriculture, all of them have as goal to improve the socio-economical conditions of the northeast population in Brazil. (E.G.) [pt

  14. Industrial radioprotection - interpretations of the standard CNEN-NE-3.01

    International Nuclear Information System (INIS)

    Dagnino, R.; Zaniolo, C.

    1989-01-01

    The safety standard established by Comissao Nacional de Energia Nuclear - Brazilian CNEN, to rule the activities related to radioprotection, embodies various professionals activities. In this article a specific analysis about the application of the standard to industry is presented. (author)

  15. Reduction of doses in the environment of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Rodrigues, D.L.; Sanches, M.P.; Sordi, G.M.A.A.

    1997-01-01

    According Brazilian legislation, individual dose levels at IPEN-CNEN/SP entitle staff to receive 10% of their base salary as additional health allowance, 20 holidays per semester, and special retirement after 25 years of work. The present work presents estimates of cost due to health allowances and recommends reduction of individual dose levels for staff including non-radiological personnel

  16. Implementation of the automated potentiometric titration method for total U at the CNEN Safeguard Laboratory, Brazil

    International Nuclear Information System (INIS)

    Cristiano, Barbara F.G.; Delgado, Jose U.; Araujo, Radier M.S. de; Silva, Jose W.S. da; Barros, Pedro D. de

    2009-01-01

    Brazilian nuclear facilities, in accordance with the regulation CNEN-NN-2.02, must have available measurement systems which allow to determine their nuclear material inventories. For the evaluation and the follow up the performance of the involved laboratories in those measurement systems, the accomplishment of interlaboratory comparison programmes becomes fundamental. Therefore, the implementation of the potentiometric titration viewing the characterization of uranium samples, represents an reference element for the Brazilian programs

  17. Production and sharing of the nuclear knowledge: knowledge management at the Radiopharmaceutical Division of the Instituto de Engenharia Nuclear of Brazilian CNEN; Produção e compartilhamento do conhecimento nuclear: a gestão do conhecimento na Divisão de Radiofármacos do Instituto de Engenharia Nuclear da Comissão Nacional de Energia Nuclear

    Energy Technology Data Exchange (ETDEWEB)

    Bettencourt, Marcia Pires da Luz

    2011-07-01

    The Brazilian nuclear area made great progress in recent years, bringing many benefits to society, not only in producing electric power, but also in agriculture, industry and medicine. One of the problems in this area, nowadays, is the risk losing nuclear knowledge. Although it is difficult to understand how knowledge is created and used, can be seen that the sharing and production are influenced by some factors that provide favorable conditions. This research focused its attention on identifying actions that contribute to the production and sharing of knowledge and information at the Divisão de Radiofármacos of Instituto de Engenharia Nuclear of Comissão Nacional de Energia Nuclear (IEN/CNEN). Knowledge management was chosen as a tool to study the problem identified, because it has methodologies aimed at stimulating the knowledge production process and knowledge and information sharing, both in private companies and public institutions, such as IEN/CNEN. Knowledge management is an interdisciplinary relatively new discipline, and although it had not been born in Information Science, there has been seeking theoretical support and legitimacy at this interdisciplinary science. This research conceptualizes, historically contextualizes and analyzes developments and trends in knowledge management. The study discourses on the peculiarities and aspects in common between the knowledge management and information management and identifies factors that influence the sharing of information and knowledge such as: social networks, communities of practice, collaborative spaces, organizational culture, organizational learning, and storytelling. In reviewing the literature and after data analysis of interviews, some actions have been identified, and it was possible to make some suggestions. It is concluded that institutional incentive for collaboration and knowledge sharing can influence positive results and increase the production of new knowledge. (author)

  18. Personnel dosimetry of extremities by using Harshaw rings XD-100 at Centro Regional de Ciencias Nucleares, CRCN, Brazilian CNEN; Dosimetria pessoal de extremidades utilizando aneis Harshaw XD-100 no Centro Regional de Ciencias Nucleares

    Energy Technology Data Exchange (ETDEWEB)

    Lima, Ricardo de Andrade; Vilela, Eudice; Nogueira, Maria do Socorro; Ferreira Filho, Alfredo Lopes; Castro, Walber Amorim [Centro Regional de Ciencias Nucleares (CRCN), Recife, PE (Brazil)]. E-mail: ral@elogica.com.br

    2000-07-01

    Data concerning calibration and type tests of an extremity system based on XD100 rings (Harshaw) are presented. Dosemeter used is a thermoluminescent chip inserted in a sealed pouch and was read out using a Harshaw 6600 reader. The dosimetric system complied with all ISO/DIS 12794-1 draft report suggested tests, in which this work was based on. This work obtained results point to the applicability of those recommendations to Brazilian institutes and suggest its adoption by the national regulatory commission. (author)

  19. Implementation of the automated potentiometric titration method for total U at the CNEN Safeguard Laboratory, Brazil; Implementacao do metodo de titulacao potenciometrica automatizado para U total no Laboratorio de Salvaguardas da CNEN, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Cristiano, Barbara F.G.; Delgado, Jose U.; Araujo, Radier M.S. de; Silva, Jose W.S. da; Barros, Pedro D. de, E-mail: barbara@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil)

    2009-07-01

    Brazilian nuclear facilities, in accordance with the regulation CNEN-NN-2.02, must have available measurement systems which allow to determine their nuclear material inventories. For the evaluation and the follow up the performance of the involved laboratories in those measurement systems, the accomplishment of interlaboratory comparison programmes becomes fundamental. Therefore, the implementation of the potentiometric titration viewing the characterization of uranium samples, represents an reference element for the Brazilian programs

  20. Replacing nuclear staff: The proactively work at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Pupak, M.O.; Rogero, J.R.

    2004-01-01

    The purpose of this paper was to bring the actual situation of Nuclear Education and Training in Brazil. Accordingly, this paper overviewed the situation of the educational matter on Latin America, especially in Brazil, in terms of efficiency and effectiveness of its superior education system. Mainly this paper pointed out for the replacing of nuclear staff and the proactive work of the Energy and Nuclear Research Institute (IPEN) of the Brazilian Nuclear Energy Commission (CNEN). (author)

  1. Replacing nuclear staff: The proactive work at IPEN/CNEN-SP-Brazil

    International Nuclear Information System (INIS)

    Pupak, M.O.; Rogero, J.R.

    2005-01-01

    The purpose of this paper was to bring out the actual situation of Nuclear Education and Training in Brazil. Accordingly, this paper overviews the situation of educational matters in Latin America, especially in Brazil, in terms of efficiency and effectiveness of its superior education system. Mainly, this paper points out the replacing of nuclear staff and the proactive work of the Energy and Nuclear Research Institute (IPEN) of the Brazilian Nuclear Energy Commission (CNEN). (author)

  2. Nuclear Information Center: 25 years of CNEN in the support of science and technology

    International Nuclear Information System (INIS)

    Sayao, Luiz Fernando; Monteiro de Barros, Anna Christina T.

    1995-01-01

    The 25 years of the Nuclear Information Centre of the Brazilian Nuclear Energy Commission - CIN/CNEN, and the role played in the context of Brazilian scientific and technological development is analyzed under two points of view: as database producer and information services provider as well as generator of knowledge and technology in the field of Information Science. The pioneer role of the Centre, not only in developing software for bibliographic information handling and in building a marketing model to information services but also contributing for the growth of database usage culture in Brazil is described. Cooperation, decentralization and sharing of resources are emphasized as the main characteristics of the work developed by the CIN/CNEN staff. Finally, the international background of CIN/CNEN coordinating Latin-American Projects as well as an active member of INIS - International Nuclear Information System, IAEA and more recently as the Brazilian representative to ETDE - Energy Technology Data Exchange is shown. IEA energy database is also discussed. (author)

  3. Chapter 9: Questions from CNEN specific exams

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2018-04-01

    The following are real questions from CNEN specific exams for obtaining the certification of RSO for gamma irradiators. These are questions that require essay answers, that are interpretative ones and therefore that may accept more than one interpretation, therefore more than one answer. For this reason, suggestions of answers will be presented in the second part of this chapter.

  4. Chapter 9: Questions from CNEN specific exams

    International Nuclear Information System (INIS)

    2018-01-01

    The following are real questions from CNEN specific exams for obtaining the certification of RSO for gamma irradiators. These are questions that require essay answers, that are interpretative ones and therefore that may accept more than one interpretation, therefore more than one answer. For this reason, suggestions of answers will be presented in the second part of this chapter

  5. SUS in nuclear medicine in Brazil: analysis and comparison of data provided by Datasus and CNEN.

    Science.gov (United States)

    Pozzo, Lorena; Coura Filho, George; Osso Júnior, João Alberto; Squair, Peterson Lima

    2014-01-01

    To investigate the outpatient access to nuclear medicine procedures by means of the Brazilian Unified Health System (SUS), analyzing the correspondence between data provided by this system and those from Comissão Nacional de Energia Nuclear (CNEN) (National Commission of Nuclear Energy). Data provided by Datasus regarding number of scintillation chambers, outpatient procedures performed from 2008 to 2012, administrative responsibility for such procedures, type of service providers and outsourced services were retrieved and evaluated. Also, such data were compared with those from institutions certified by CNEN. The present study demonstrated that the system still lacks maturity in terms of correct data input, particularly regarding equipment available. It was possible to list the most common procedures and check the growth of the specialty along the study period. Private centers are responsible for most of the procedures covered and reimbursed by SUS. However, many healthcare facilities are not certified by CNEN. Datasus provides relevant data for analysis as done in the present study, although some issues still require attention. The present study has quantitatively depicted the Brazilian reality regarding access to nuclear medicine procedures offered by/for SUS.

  6. SUS in nuclear medicine in Brazil: analysis and comparison of data provided by Datasus and CNEN*

    Science.gov (United States)

    Pozzo, Lorena; Coura Filho, George; Osso Júnior, João Alberto; Squair, Peterson Lima

    2014-01-01

    Objective To investigate the outpatient access to nuclear medicine procedures by means of the Brazilian Unified Health System (SUS), analyzing the correspondence between data provided by this system and those from Comissão Nacional de Energia Nuclear (CNEN) (National Commission of Nuclear Energy). Materials and Methods Data provided by Datasus regarding number of scintillation chambers, outpatient procedures performed from 2008 to 2012, administrative responsibility for such procedures, type of service providers and outsourced services were retrieved and evaluated. Also, such data were compared with those from institutions certified by CNEN. Results The present study demonstrated that the system still lacks maturity in terms of correct data input, particularly regarding equipment available. It was possible to list the most common procedures and check the growth of the specialty along the study period. Private centers are responsible for most of the procedures covered and reimbursed by SUS. However, many healthcare facilities are not certified by CNEN. Conclusion Datasus provides relevant data for analysis as done in the present study, although some issues still require attention. The present study has quantitatively depicted the Brazilian reality regarding access to nuclear medicine procedures offered by/for SUS. PMID:25741070

  7. Actualization of the Brazilian nuclear regulations

    International Nuclear Information System (INIS)

    Wieland, Patricia; Soares, Abner Duarte; Nogueira, Tindyua de Moraes; Monteiro, Iara Arraes; Pitta, Maria Adelia Rocha; Bruno, Natanael Carvalho; Pereira, Enneite Souza; Pinto, Marvio dos S.; Lidington, Regina Marcia Rocha; Rocha, Marco Aurelio Toledo

    2011-01-01

    The present work has the objective of making public the methodological approach adopted by the Brazilian Nuclear Energy Commission (CNEN) to create a nuclear normative structure up-dated and coherent. According to the Law 4118/62, 6189/74 and 7781/89, is the attribution the CNEN to establish specific guidelines for nuclear safety and radiological protection, and also do dictate safety norms through the emission of Resolutions

  8. Nuclear Information Center: 25 years of CNEN in the support of science and technology; Centro de Informacoes Nucleares: 25 anos de apoio da CNEN a area de ciencia e tecnologia

    Energy Technology Data Exchange (ETDEWEB)

    Sayao, Luiz Fernando; Monteiro de Barros, Anna Christina T. [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Centro de Informacoes Nucleares

    1995-05-01

    The 25 years of the Nuclear Information Centre of the Brazilian Nuclear Energy Commission - CIN/CNEN, and the role played in the context of Brazilian scientific and technological development is analyzed under two points of view: as database producer and information services provider as well as generator of knowledge and technology in the field of Information Science. The pioneer role of the Centre, not only in developing software for bibliographic information handling and in building a marketing model to information services but also contributing for the growth of database usage culture in Brazil is described. Cooperation, decentralization and sharing of resources are emphasized as the main characteristics of the work developed by the CIN/CNEN staff. Finally, the international background of CIN/CNEN coordinating Latin-American Projects as well as an active member of INIS - International Nuclear Information System, IAEA and more recently as the Brazilian representative to ETDE - Energy Technology Data Exchange is shown. IEA energy database is also discussed. (author) 1 tab., 4 figs.

  9. The implementation and application of the WASP-III at CNEN/Brazil

    International Nuclear Information System (INIS)

    Sakamoto, L.H.; Lima, J.O.V.; Silva, R.C.O. da.

    1983-09-01

    The main dificulties faced in the implementation of the WASP-III on the Honeywell Bull DPS 6/64 computer at CNEN, are discribed. After the implementation, tests making use of input data provided by International Atomic Energy Agency - IAEA were performed and comparative results from accomplishment peiods of time are presented with the basic characteristics of the computer employed and the modifications carried out to adapt the programm. The WASP-III was applied to middle-sized electric system based upon the Brazilian North/Northeast System. (Author) [pt

  10. Performance of the Radioprotection Engineering Group in the new structure of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Sahyun, A.; Sordi, G.M.A.A.

    1992-01-01

    A comparison between the old and now CNEN (Brazilian Nuclear Energy Commission) organizational structure was performed. The new structure lead to a new IPEN (Nuclear and Energetics Research Institute) organization and also to gave use to a Radioprotection Engineering Area, The principal modification raised a second block already in accomplishment. The main aim of the Radioprotection Engineering Area is to turn personnel team interested, concerned, dexterous, dynamic and competitive on their activities besides to provide it of a continuously improvement and updating about technical activities in radiation protection. From these results an evaluation of possible drawbacks and ways to overcome them will be performed. (author)

  11. Neutron tomography at IPEN-CNEN/SP: images and applications

    Energy Technology Data Exchange (ETDEWEB)

    Pugliesi, Reynaldo; Pereira, Marco Antonio Stanojev; Andrade, Marcos Leandro Garcia, E-mail: pugliesi@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2016-07-01

    Full text: The neutron tomography is a non destructive testing technique used to inspect the internal structure of a sample by means of tridimensional digital images. Because of the neutron-matter interaction characteristics this technique can be used to inspect hydrogen-rich substances like ceramics, oil, grease, water, rubber, blood and others, even wrapped by thick metal layers. In this way, the information provided by neutrons are complementary to the ones provided by X-rays. The Brazilian Institute for Nuclear Technology IPEN-CNEN/SP has an equipment for neutron tomography which since Nov/2011 is operational and installed at the IEA-R1 Nuclear Research Reactor. This equipment is able to provide high quality tomographs and some important results obtained for Proton Exchange Membranes (PEM) cell, for an archaeological sample and for pottery, will be presented. Furthermore, details of its construction and its versatility, in the sense that by means of small adjustments is possible to obtain images by other neutron imaging techniques, will be also presented. Is very important enhance that the high quality of the obtained images is due to the excellence of the IEA-R1 reactor which is able to furnish neutron beams with adequate intensity for such purpose. (author)

  12. The protection and the preservation of the environment the Brazilian nuclear law

    International Nuclear Information System (INIS)

    Faria, N.M. de; Goes Fischer, M.D. de; Rocha, L.M.G. da; NUCLEBRAS, Rio de Janeiro; Associacao Brasileira de Direito Nuclear, Rio de Janeiro)

    1981-01-01

    A set of Brazilian rules governing the protection and the preservation of the environment in relation to nuclear activities is presented. The role of CNEN, as an institution that defends the environment is also mentioned. (A.L.) [pt

  13. Implementation of the CNEN's safeguards laboratory

    International Nuclear Information System (INIS)

    Almeida, S.G. de

    1986-01-01

    The International Safeguards Agreements between Brazil and others countries has been concluded with the participation of the International Atomic Energy Agency (AIEA), and involve the Physical Protection and Control of Nuclear Material activities, which set up the National Safeguards System. The Safeguards Laboratory was constructed to the implementation and maintenance of this National Safeguards System, under responsability of CNEN's Safeguards Division, in order to carry out measurements of nuclear materials under safeguards. Technical requirements applied to the construction, setting up and operation of the laboratory are showed. The first results refer to the implementation of safeguards methods and techniques, as well as its participation within international scientific and technical co-operation programs in the safeguards area, through of them we wait its credencement by the AIEA as Regional Safeguards Laboratory for every countries of the Latin America. (Author) [pt

  14. CNEN experience on bellows for sodium system

    International Nuclear Information System (INIS)

    Gai, A.; Casalini, P.

    1980-01-01

    In Italy work on the breeder reactors is being carried out in three main areas: The PEC reactor; Construction of the components for the Creys-Malville plant, the testing in support of this, and work on the SPX reactor; Standardized industrial supplies. With regard to the PEC reactor, design work for the system and a part of the components is being conducted mainly in Italy by CNEN and NIRA, with the experimental testing in support being conducted in Italy and abroad. With regard to the Creys-Malville plant and the SPX reactor programs, activities for the supply of the components and testing in support of them are being conducted within a tight framework of agreements between the research organizations and Italian and French industries. Finally, the standardized industrial supplies are developing autonomously, without any major research and development involvement. The differences in methodologies, procedures and organizations involved in the three above mentioned work areas and the relative limitation of activities conducted in the breeder reactor area in Italy have made the carrying out of a systematic, organic program for the use of sodium bellows impossible. In particular, until today no sodium testing program has been carried out on this component in Italy

  15. CNEN experience on bellows for sodium system

    Energy Technology Data Exchange (ETDEWEB)

    Gai, A; Casalini, P

    1980-02-01

    In Italy work on the breeder reactors is being carried out in three main areas: The PEC reactor; Construction of the components for the Creys-Malville plant, the testing in support of this, and work on the SPX reactor; Standardized industrial supplies. With regard to the PEC reactor, design work for the system and a part of the components is being conducted mainly in Italy by CNEN and NIRA, with the experimental testing in support being conducted in Italy and abroad. With regard to the Creys-Malville plant and the SPX reactor programs, activities for the supply of the components and testing in support of them are being conducted within a tight framework of agreements between the research organizations and Italian and French industries. Finally, the standardized industrial supplies are developing autonomously, without any major research and development involvement. The differences in methodologies, procedures and organizations involved in the three above mentioned work areas and the relative limitation of activities conducted in the breeder reactor area in Italy have made the carrying out of a systematic, organic program for the use of sodium bellows impossible. In particular, until today no sodium testing program has been carried out on this component in Italy.

  16. The Brazilian emergency response system

    International Nuclear Information System (INIS)

    Santos, Raul dos

    1997-01-01

    With the objective of improving the response actions to potential or real emergency situations generated by radiological or nuclear accidents, the Brazilian National Nuclear Energy Commission (CNEN) installed an integrated response system on a 24 hours basis. All the natiowide notifications on events that may start an emergency situation are converged to this system. Established since July 1990, this system has received around 300 notifications in which 5% were classified as potential emergency situation. (author)

  17. Investigation of radiological emergencies by the IPEN-CNEN/SP during the years 2001 to 2010

    International Nuclear Information System (INIS)

    Suzuki, Fabio Fumio; Mitake, Malvina Boni

    2011-01-01

    The Brazilian National Nuclear Energy Commission maintain, in each of its unities, a technical team for investigation and initial response to radiological and nuclear emergency situations which can occur outside of its installations. At the Sao Paulo state, Brazil, that task is accomplished by the Radioprotection Management (GRP) of the Instituto de Pesquisas Energeticas e Nucleares, IPEN-CNEN/SP, Brazil. This paper shows the results obtained by the GRP, analysing which entities action the system, the nature of the event, the involved type of radiation source and the geographical distribution of occurrences in the state. During the period between 2001 and 2010, the GRP attended to 98 notifications, and the entity which the most action the system was the Fire Department. The radionuclide of most incidence was the Am-241, mainly because of radioactive lightning-arrester, followed of radionuclides used in nuclear medicine such as Mo-99/Tc-99m and I-131

  18. Implementation of the Service for Radiological Emergency Response of CRCN-NE/CNEN-PE, Recife, PE, Brazil

    International Nuclear Information System (INIS)

    Menezes, Claudio J.M.

    2005-01-01

    In 1998, it was created in the Centro Regional de Ciencias Nucleares (CRCN-NE) - the Brazilian regional center of nuclear sciences -, Recife, PE, Brazil, the Service for Radiological Emergency Response with the objective of providing the population of Pernambuco and neighboring States a team of professionals specialized in emergency situations and radiological protection. This action has the purpose of decentralization of actions of the Brazilian National Nuclear Energy Commission (CNEN), an agency responsible for licensing and safety of radioactive sources in Brazil. With this study we can conclude that the settlement of SAER/CRCN came to meet initial expectations, having in the last years provided assistance in situations with suspected radioactive material and participated actively: with radioactive load simulation; of the Exercicio de Emergencia Aeronautica Completo (EXEAC) - an emergency simulated training in airports- from the Guararapes-Gilberto Freire Airport; trained, every two years, the services of emergency for accidents and participated in events of the area

  19. Radiotoxicological analysis at IPEN-CNEN/SP-Brazil

    International Nuclear Information System (INIS)

    Duarte, C.L.; Gaburo, J.; Bellintani, S.A.

    1987-01-01

    The methodology of control of internal contamination of handlers of radioactive materials is briefly described. The aim of IPEN-CNEN/SP-Brazil is the evaluation of occupational exposure of compounds of uranium, tritium, iodine-131, lead and fluorine among other ones. (M.A.C.) [pt

  20. Actualization of the Brazilian nuclear regulations; Atualizacao das normas nucleares brasileiras

    Energy Technology Data Exchange (ETDEWEB)

    Wieland, Patricia; Soares, Abner Duarte; Nogueira, Tindyua de Moraes; Monteiro, Iara Arraes; Pitta, Maria Adelia Rocha; Bruno, Natanael Carvalho; Pereira, Enneite Souza; Pinto, Marvio dos S.; Lidington, Regina Marcia Rocha; Rocha, Marco Aurelio Toledo, E-mail: pwieland@cnen.gov.b, E-mail: asoares@cnen.gov.b, E-mail: tnogueira@cnen.gov.b, E-mail: iara@cnen.gov.b, E-mail: mpitta@cnen.gov.b, E-mail: nbruno@cnen.gov.b, E-mail: espereira@cnen.gov.b, E-mail: marvio@cnen.gov.b, E-mail: , E-mail: rmliding@cnen.gov.b, E-mail: mtoledo@cnen.gov.b [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Div. de Normas

    2011-10-26

    The present work has the objective of making public the methodological approach adopted by the Brazilian Nuclear Energy Commission (CNEN) to create a nuclear normative structure up-dated and coherent. According to the Law 4118/62, 6189/74 and 7781/89, is the attribution the CNEN to establish specific guidelines for nuclear safety and radiological protection, and also do dictate safety norms through the emission of Resolutions

  1. Brazilian multipurpose reactor

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2014-07-01

    The Brazilian Multipurpose Reactor (RMB) Project is an action of the Federal Government, through the Ministry of Science Technology and Innovation (MCTI) and has its execution under the responsibility of the Brazilian National Nuclear Energy Commission (CNEN). Within the CNEN, the project is coordinated by the Research and Development Directorate (DPD) and developed through research units of this board: Institute of Nuclear Energy Research (IPEN); Nuclear Engineering Institute (IEN); Centre for Development of Nuclear Technology (CDTN); Regional Center of Nuclear Sciences (CRCN-NE); and Institute of Radiation Protection and Dosimetry (IRD). The Navy Technological Center in Sao Paulo (CTMSP) and also the participation of other research centers, universities, laboratories and companies in the nuclear sector are important and strategic partnerships. The conceptual design and the safety analysis of the reactor and main facilities, related to nuclear and environmental licensing, are performed by technicians of the research units of DPD / CNEN. The basic design was contracted to engineering companies as INTERTHECNE from Brazil and INVAP from Argentine. The research units from DPD/CNEN are also responsible for the design verification on all engineering documents developed by the contracted companies. The construction and installation should be performed by specific national companies and international partnerships. The Nuclear Reactor RMB will be a open pool type reactor with maximum power of 30 MW and have the OPAL nuclear reactor of 20 MW, built in Australia and designed by INVAP, as reference. The RMB reactor core will have a 5x5 configuration, consisting of 23 elements fuels (EC) of U{sub 3}Si{sub 2} dispersion-type Al having a density of up to 3.5 gU/cm{sup 3} and enrichment of 19.75% by weight of {sup 23{sup 5}}U. Two positions will be available in the core for materials irradiation devices. The main objectives of the RMB Reactor and the other nuclear and radioactive

  2. Brazilian multipurpose reactor

    International Nuclear Information System (INIS)

    2014-01-01

    The Brazilian Multipurpose Reactor (RMB) Project is an action of the Federal Government, through the Ministry of Science Technology and Innovation (MCTI) and has its execution under the responsibility of the Brazilian National Nuclear Energy Commission (CNEN). Within the CNEN, the project is coordinated by the Research and Development Directorate (DPD) and developed through research units of this board: Institute of Nuclear Energy Research (IPEN); Nuclear Engineering Institute (IEN); Centre for Development of Nuclear Technology (CDTN); Regional Center of Nuclear Sciences (CRCN-NE); and Institute of Radiation Protection and Dosimetry (IRD). The Navy Technological Center in Sao Paulo (CTMSP) and also the participation of other research centers, universities, laboratories and companies in the nuclear sector are important and strategic partnerships. The conceptual design and the safety analysis of the reactor and main facilities, related to nuclear and environmental licensing, are performed by technicians of the research units of DPD / CNEN. The basic design was contracted to engineering companies as INTERTHECNE from Brazil and INVAP from Argentine. The research units from DPD/CNEN are also responsible for the design verification on all engineering documents developed by the contracted companies. The construction and installation should be performed by specific national companies and international partnerships. The Nuclear Reactor RMB will be a open pool type reactor with maximum power of 30 MW and have the OPAL nuclear reactor of 20 MW, built in Australia and designed by INVAP, as reference. The RMB reactor core will have a 5x5 configuration, consisting of 23 elements fuels (EC) of U 3 Si 2 dispersion-type Al having a density of up to 3.5 gU/cm 3 and enrichment of 19.75% by weight of 23 5 U. Two positions will be available in the core for materials irradiation devices. The main objectives of the RMB Reactor and the other nuclear and radioactive facilities are

  3. Safeguard system of IPEN-CNEN/Sao Paulo - Brazil

    International Nuclear Information System (INIS)

    Araujo, Jose Adroaldo de; Enokihara, Cyro Teiti; Nakamura, Aparecida Tiyo O.

    1999-01-01

    The history, requirements, organization, and operation of the State System of Accounting and Control from the institute for Energetic and Nuclear Research (IPEN-CNEN/SP) are described. The implementation system at the institution take into consideration the national and international safeguards requirements. It has started by the nuclear material (U, Pu and Th) physical inventory taking, including their provenance and transformation. The earlier computerized accounting system used for control has been replaced by a new one developed by the National Authority (CNEN/SESAL). The optimized system has more flexibility, giving a more effective answer to any occurred change on Material Balance Area. The actual system make use of an effective methodology. (author)

  4. CNEN, IAEA and ISO normative requirements for measurement management

    International Nuclear Information System (INIS)

    Kibrit, Eduardo

    2009-01-01

    International standard ISO 10012:2003 establishes requirements for measurement management systems, including requirements for measurement processes and measuring equipment. ISO 9001:2008 presents requirements for quality management systems, including requirements for the control of monitoring and measuring equipment. ISO 17025:2005 presents general requirements for the competence of testing and calibration laboratories. In the nuclear field the requirements for measurement management are established by standards published by the International Atomic Energy Agency (IAEA), and in Brazil, by the National Nuclear Energy Commission (CNEN). The present paper presents and discusses the normative requirements for measurement management, considering requirements established by National Nuclear Energy Commission (CNEN), International Atomic Energy Agency (IAEA), and International Organisation for Standardisation (ISO). (author)

  5. Review of CNEN activities in the field of sodium fires

    Energy Technology Data Exchange (ETDEWEB)

    Gerosa, A [CNEN/CSN Casaccia, Rome (Italy)

    1979-03-01

    The problems related to sodium fires have received increased attention at CNEN in recent years. Sodium fires have been reported in several countries with a rate that is. relatively high if compared to the number of plants in operation. The consequences of fires have been usually quite limited but it appears that more adequate precautions could often be applied to minimize risk of more serious consequences. Many alternatives exist for fire prevention and for fire extinction, but the fact that many alternatives have not been sufficiently tested make choices rather difficult. CNEN has been facing the problem of sodium fire prevention and extinction in relation to: design of PEC reactor; design of experimental loops in its own centres (Casaccia and Brasimone); safe operation of the same loops and analysis of accidents and potential accident situations; design of facilities for sodium fire experiments; operation of sodium fire facilities; operation of sodium disposal facilities. It is worth mentioning that sodium is also utilized by italian concerns, where it is processed mostly as an intermediate product in the manufacture of tetraethyl lead. A recent accident in a TEL production plant in Italy (Trento in July 1978) has recently once more raised the question if provisions for sodium fire extinction were adequate. Small scale fires for training purposes have been performed by several experimenters at CNEN since 1965. A more systematic approach, initiated in 1973 at Brasimone Centre, has been interrupted after 1976 when studies for the construction of a larger experimental facility (SUPERSATANA) have been abandoned. In 1976 it was proposed a CNEN participation to the French Program ESMERALDA. An accord to run the ESMERALDA Project as a French-Italian common program has recently been taken. Experimental results are presented in this paper.

  6. Review of CNEN activities in the field of sodium fires

    International Nuclear Information System (INIS)

    Gerosa, A.

    1979-01-01

    The problems related to sodium fires have received increased attention at CNEN in recent years. Sodium fires have been reported in several countries with a rate that is. relatively high if compared to the number of plants in operation. The consequences of fires have been usually quite limited but it appears that more adequate precautions could often be applied to minimize risk of more serious consequences. Many alternatives exist for fire prevention and for fire extinction, but the fact that many alternatives have not been sufficiently tested make choices rather difficult. CNEN has been facing the problem of sodium fire prevention and extinction in relation to: design of PEC reactor; design of experimental loops in its own centres (Casaccia and Brasimone); safe operation of the same loops and analysis of accidents and potential accident situations; design of facilities for sodium fire experiments; operation of sodium fire facilities; operation of sodium disposal facilities. It is worth mentioning that sodium is also utilized by italian concerns, where it is processed mostly as an intermediate product in the manufacture of tetraethyl lead. A recent accident in a TEL production plant in Italy (Trento in July 1978) has recently once more raised the question if provisions for sodium fire extinction were adequate. Small scale fires for training purposes have been performed by several experimenters at CNEN since 1965. A more systematic approach, initiated in 1973 at Brasimone Centre, has been interrupted after 1976 when studies for the construction of a larger experimental facility (SUPERSATANA) have been abandoned. In 1976 it was proposed a CNEN participation to the French Program ESMERALDA. An accord to run the ESMERALDA Project as a French-Italian common program has recently been taken. Experimental results are presented in this paper

  7. Results of the technical evaluation of dentistry X-ray equipment of a faculty of Dentistry of Rio Grande do Sul State, based on Regulation 453 of Health Ministry and IRD/CNEN-BR recommendations

    International Nuclear Information System (INIS)

    Staevie, G.L.G.; Jahn, T.R.; Barbieri, D.X.; Mas, C.R Dal; Sbaraini, P.; Saba, J.C.P.

    2001-01-01

    This paper describes the technical evaluation of odontology X-ray equipment installed in a local school of odontology with regard to the fulfillment of requirements of Regulation No. 453, issued by Brazilian Ministry of Health and the recommendations of the Institute of Radiation Protection and Dosimetry, IRD/CNEN. Fifteen intra-oral odontology X-ray equipment were evaluated and their conformities and non-conformities were identified, followed by recommendations to be adopted by the school. (author)

  8. Investigation of radiological emergencies by the IPEN-CNEN/SP during the years 2001 to 2010; Averiguacoes de emergencias radiologicas pelo IPEN-CNEN/SP nos anos de 2001 a 2010

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Fabio Fumio; Mitake, Malvina Boni, E-mail: ffsuzuki@ipen.b, E-mail: mbmitake@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2011-10-26

    The Brazilian National Nuclear Energy Commission maintain, in each of its unities, a technical team for investigation and initial response to radiological and nuclear emergency situations which can occur outside of its installations. At the Sao Paulo state, Brazil, that task is accomplished by the Radioprotection Management (GRP) of the Instituto de Pesquisas Energeticas e Nucleares, IPEN-CNEN/SP, Brazil. This paper shows the results obtained by the GRP, analysing which entities action the system, the nature of the event, the involved type of radiation source and the geographical distribution of occurrences in the state. During the period between 2001 and 2010, the GRP attended to 98 notifications, and the entity which the most action the system was the Fire Department. The radionuclide of most incidence was the Am-241, mainly because of radioactive lightning-arrester, followed of radionuclides used in nuclear medicine such as Mo-99/Tc-99m and I-131

  9. Brazilian emergency planning for radiological accidents

    International Nuclear Information System (INIS)

    Mendonca, A.H.

    1986-01-01

    Brazilian emergency planning for radiological accidents is organized to respond promptly to any emergency at nuclear power plants or other installations utilizing nuclear fuel. It consists of several committees: a general coordination committee with representatives from several federal departments, with final decision with the Brazilian Nuclear Energy Commission (CNEN), and the Federal Environmental Protection Agency (SEMA). Some committees conduct support activities. For example, the Operational Coordination Committee supervises the tasks undertaken by the Army, Navy, and Air Force in response to the needs and decisions of the general coordination committee

  10. IPR-RI TRIGA MARK I reactor and the neutron activation analysis at CDTN/CNEN

    International Nuclear Information System (INIS)

    Menezes, Maria Angela de B.C.; Kastner, Geraldo F.; Amaral, Angela M.; Souza, Wagner de; Maretti, Fausto Junior; Leal, Alexandre S.

    2008-01-01

    The IPR-R1 TRIGA Mark I research reactor started up in 1960. It is located at Centro de Desenvolvimento da Tecnologia Nuclear (Nuclear Technology Development Centre) / Comissao Nacional de Energia Nuclear (Brazilian Commission for Nuclear Energy), CDTN/CNEN. Join to the reactor, the Laboratory for Neutron Activation Analysis has been developing its activities since 1960. The activities of the Laboratory comprise the delayed fission neutron activation analysis, instrumental (comparative and parametric methods) and radiochemical / chemical methods. These methods are responsible for relevant percentage of CDTN's analysis demand, meeting the clients' analytical needs and researches developed by the Laboratory, by CDTN and by other institutions. Over the years the work has been linked to the goals of the country and the institutions. Nowadays several elements - Ag, Al, Au, As, Ba, Br, Ca, Cd, Ce, Cl, Co, Cr, Cs, Cu, Dy, Eu, Fe, Ga, Hf, Hg, Ho, K, La, Mg, Mn, Mo, Na, Nd, Rb, Sb, Sc, Se, Sm, Sr, Ta, Tb, Th, Ti, U, V, W, Yb, Zn and Zr - are determined in several matrices and range of concentrations. In Brazil, CDTN is the only Institute that fully masters the instrumental neutron activation analysis k0-method determining short, medium and long half-life radionuclides using its own nuclear reactor. The good performance of the reactor is pointed out in a table with experimental and certified values for Certified Reference Materials. (authors)

  11. Bromide as chemical tracer to measure the liquid effluent flow at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Silva, Douglas B.; Faustino, Mainara G.; Monteiro, Lucilena R.; Cotrim, Marycel E.B.; Pires, Maria Aparecida F.

    2013-01-01

    Due to recent changes in CONAMA Resolution 357, which occurred through the publication of Resolution 430, on May 13, 2011 that now set standards about the effluent release, IPEN-CNEN/SP initiated several actions to improve the Environmental Monitoring Program (PMA-Q) of stable chemical compounds. Besides various parameters (physical and chemical) established by CONAMA, the submission of an annual pollution inventory report became necessary. The liquid effluent flow measurement is required to implement this inventory. Thereby, this paper describes a study that uses bromide as a chemical tracer. This paper presents the results of 6 tracer releases in IPEN wastewater collection network between 2011 and 2012. Two tracer releases designs were performed: single pulse and continuous releases performed with 1 to 6 hours duration, done by using one single piston pump manufactured by DIONEX. After the release, one fraction of the effluent was collected every 15 minutes at IPEN effluent monitoring station. The tracer concentration in the effluent was analyzed by ion chromatography and flow was calculated considering the dilution in the system and pump flow set up for the release. The flow values were measured in 6 events were determined and evaluated as per Brazilian regulation requirements. Experimental designs to be implemented during 2013 monitoring were also discussed in this paper, contributing to legal compliance and to improve IPEN's Environmental Monitoring Program for stable chemical compounds (PMA-Q). (author)

  12. Metrology in CNEN NN 3.05/13 standard

    International Nuclear Information System (INIS)

    Mello, Marina Santiago de

    2014-01-01

    The nuclear medicine exams are widely used tools in health services for a reliable clinical and functional diagnosis of a disease. In Brazil, the National Nuclear Energy Commission, through the norm CNEN-NN 3:05/13, provides for the requirements of safety and radiological protection in nuclear medicine services. The objective of this review article was to emphasize the importance of metrology in compliance with this norm. We observed that metrology plays a vital role as it ensures the quality, accuracy, reproducibility and consistency of the measurements in the field of nuclear medicine. (author)

  13. Electron beam accelerator facilities at IPEN-CNEN/SP

    Energy Technology Data Exchange (ETDEWEB)

    Somessari, Samir L.; Silveira, Carlos G. da; Paes, Helio; Somessari, Elizabeth S.R. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)], E-mail: somessar@ipen.br

    2007-07-01

    Electron beam processing is a manufacturing technique, which applies a focused beam of high-energy electrons produced by an electron accelerator to promote chemical changes within a product. At IPEN-CNEN/SP there are two electron beam accelerators Type Dynamitron{sup R} (manufactured by RDI- Radiation Dynamics Inc.) Job 188 and Job 307 models. The technical specifications for the Job 188 energy 1.5 MeV, beam current 25 mA, scan 1.20 m, beam power 37.5 kW and for the Job 307 energy 1.5 MeV, beam current 65 mA, Scan 1.20 m, beam power 97.5 kW. Some applications of the electron beam accelerator for radiation processing are wire and cable insulation crosslinking, rubber vulcanization, sterilization and disinfection of medical products, food preservation, heat shrinkable products, polymer degradation, aseptic packaging, semiconductors and pollution control. For irradiating these materials at IPEN-CNEN/SP, there are some equipment such as, underbeam capstan with speed control from 10 to 700 m/min; a track; a system to roll up and unroll wires and electric cables, polyethylene blankets and other systems to improve the quality of the products. (author)

  14. Replacing nuclear staff: The proactive work at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Pupak, M.O.; Rogero, J.R.

    2004-01-01

    In Brazil, young people do not learn nuclear science, nuclear engineering and related fields at College or Universities, because Brazilian Universities offer such specialized courses only as extension classes to normal curriculum. Another important aspect to be considered is that there are eight Brazilian Universities or Research Institute that offers MSc and PhD degree offered on only four State/Region of Brazil, e.g.: in the State of Sao Paulo/SP, Region Southeast of Brazil, there is only one programme, at Energy and Nuclear Research Institute - IPEN, in association with the University of Sao Paulo - USP; in the State of Rio de Janeiro/RJ, Region Southeast of Brazil, there are four programmes: the Federal University of Rio de Janeiro - UFRJ, the Army Engineering Institute - IME, the Institute of Nuclear Engineering - IEN, the Institute of Radiation Protection and Dosimetry - IRD; in the State of Minas Gerais, Region Southeast of Brazil, there are the Center of Nuclear Technology Development - CDTN and the Federal University of Minas Gerais - UFMG; in the State of Pernambuco, Region Northeast of Brazil, there is Federal University of Pernambuco - UFPE. Those four institutes: IPEN, IEN, IRD and CDTN are institutes belonging to the National Nuclear Energy Commission - CNEN. The situation of those nuclear programmes (mentioned above), their level of post graduation and the grade attributed by Capes - the Higher Education Coordinating Office of the Federal Ministry of Education, done three-annually on all Brazilian Courses, undergraduate and postgraduate is presented. This evaluation varies on a scale from 1 to 5, universities are allowed to conduct their programme only with grade up to 3, if not the course is disregarded. The acquirement of evaluation up to 5, i.e. 6 and 7 is given only to programme that has high academic level recognized internationally for expertise. IPEN it is a traditional research and educational institution, recognized internationally for the

  15. External dosimetry by Thermoluminescent Dosimetry Laboratory - IPEN/CNEN - Brazil

    International Nuclear Information System (INIS)

    Manzoli, Jose Eduardo; Carvalho, Ricardo Nunes

    2001-01-01

    The Thermoluminescence Dosimetry Laboratory, LDT - IPEN/CNEN - Brazil, executes around six thousand TLD readings monthly. It is responsible for the dose evaluation and registration and for all the manufacture process of preparation and sending the dosemeters which are used by IPEN itself, hospitals, industries, town halls, universities, etc. Although prepared to read many kinds of materials, actually the LDT reads only CaSO 4 :Dy detector chips. Chips, heating molds, plastic packaging and almost every material or instrument are made right here at IPEN. The readings are performed in a Bicron Harshaw TLD model 5500, but an old model 2000-AB is ready to be used if necessary. In this work it is presented some features of this important service realized to the IPEN workers and to the community. (author)

  16. Isochronous variable energy cyclotron of IPEN-CNEN/SP (Brazil)

    International Nuclear Information System (INIS)

    Lucki, G.; Zanchetta, A.A.; Gouveia, S.; Klein, H.

    1984-01-01

    The cyclotron CV-28 installed at the Radiation Damage Division of IPEN-CNEN/SP is a multi-particle radiation source where protons, deuterons, 3 He ions and alpha particles can be accelerated with variable energy up to 24, 14, 36 and 28 MeV, respectively. The cyclotron is a versatile machine that can be applied in research and development of : radioisotope production - materials science - nuclear physics - activation analysis and others. First internal beam with 24 MeV protons has been obtained in April 23, 1981. First irradiation of Cu sample, at the external beam (beam current 1.5 μA), with 28 MeV alpha particles was performed in December 29, 1983. Main characteristics of the cyclotron are given together with a description of peripheral systems and experimental capability. Presently the accelerator is being optimized for cpontinuous running. (Author) [pt

  17. Survey of legal aspects, regulations, standards and guidelines applicable to radioactive waste management of the Brazilian Multipurpose Reactor - RMB

    International Nuclear Information System (INIS)

    Salvetti, T.C.; Marumo, J.T.

    2017-01-01

    In Brazil, the Brazilian Nuclear Energy Commission (CNEN) and Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) are the agencies responsible for the execution, regulation and control of nuclear and environmental policies, respectively. Such regulatory activities are very comprehensive (IBAMA) or too specific (CNEN), revealing other aspects that would, also, need to be observed so that the management could be carried out efficiently (quality) and effectively (safety), including the three governmental administrative levels: Federal, State and Municipal. In addition to laws, regulations, decrees and resolutions, there are also national and international standards and guides that provide guidelines for structuring the current management and the use of best regulatory practices. The Brazilian Multipurpose Reactor Enterprise (RMB) is a CNEN project, complying with a Multi-Year Plan of the Brazilian Ministry of Planning, Development and Management (MPDG). The Enterprise is being developed under the responsibility of the Directorate of Research and Development - DPD of CNEN and will have a facility for treatment and initial temporary storage of the radioactive waste generated by the operation of the research reactor and the activities carried out in the associated laboratories. The RMB will be built in the city of IPERÓ, located in the state of São Paulo, near ARAMAR Experimental Center of the Brazilian Navy. This work aims to present the research results regarding the various aspects that regulate, legislate and standardize the practices proposed to the Radioactive Waste Management of the RMB project. (author)

  18. Survey of legal aspects, regulations, standards and guidelines applicable to radioactive waste management of the Brazilian Multipurpose Reactor - RMB

    Energy Technology Data Exchange (ETDEWEB)

    Salvetti, T.C.; Marumo, J.T., E-mail: salvetti@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), São Paulo, SP (Brazil)

    2017-07-01

    In Brazil, the Brazilian Nuclear Energy Commission (CNEN) and Brazilian Institute of Environment and Renewable Natural Resources (IBAMA) are the agencies responsible for the execution, regulation and control of nuclear and environmental policies, respectively. Such regulatory activities are very comprehensive (IBAMA) or too specific (CNEN), revealing other aspects that would, also, need to be observed so that the management could be carried out efficiently (quality) and effectively (safety), including the three governmental administrative levels: Federal, State and Municipal. In addition to laws, regulations, decrees and resolutions, there are also national and international standards and guides that provide guidelines for structuring the current management and the use of best regulatory practices. The Brazilian Multipurpose Reactor Enterprise (RMB) is a CNEN project, complying with a Multi-Year Plan of the Brazilian Ministry of Planning, Development and Management (MPDG). The Enterprise is being developed under the responsibility of the Directorate of Research and Development - DPD of CNEN and will have a facility for treatment and initial temporary storage of the radioactive waste generated by the operation of the research reactor and the activities carried out in the associated laboratories. The RMB will be built in the city of IPERÓ, located in the state of São Paulo, near ARAMAR Experimental Center of the Brazilian Navy. This work aims to present the research results regarding the various aspects that regulate, legislate and standardize the practices proposed to the Radioactive Waste Management of the RMB project. (author)

  19. Hot Chemistry Laboratory decommissioning activities at IPEN/CNEN-SP, Brazil

    International Nuclear Information System (INIS)

    Camilo, Ruth L.; Lainetti, Paulo E.O.

    2009-01-01

    IPEN's fuel cycle activities were accomplished in laboratory and pilot plant scale and most facilities were built in the 70-80 years. Nevertheless, radical changes of the Brazilian nuclear policy in the beginning of 90's determined the interruption of several fuel cycle activities and facilities shutdown. Since then, IPEN has faced the problem of the pilot plants decommissioning considering that there was no experience/expertise in this field at all. In spite of this, some laboratory and pilot plant decommissioning activities have been performed in IPEN in the last years, even without previous experience and training support. One of the first decommissioning activities accomplished in IPEN involved the Hot Chemistry Laboratory. This facility was built in the beginning of the 80's with the proposal of supporting research and development in the nuclear chemistry area. It was decided to settle a new laboratory in the place where the Hot Chemistry Laboratory was installed, being necessary its total releasing from the radioactive contamination point of view. The previous work in the laboratory involved the manipulation of samples of irradiated nuclear fuel, besides plutonium-239 and uranium-233 standard solutions. There were 5 glove-boxes in the facility but only 3 were used with radioactive material. The glove-boxes contained several devices and materials, besides the radioactive compounds, such as: electric and electronic equipment, metallic and plastic pieces, chemical reagents, liquid and solid radioactive wastes, etc. The laboratory's decommissioning process was divided in 12 steps. This paper describes the procedures, problems faced and results related to the Hot Chemistry Laboratory decommissioning operations and its reintegration as a new laboratory of the Chemical and Environmental Technology Center (CQMA) - IPEN-CNEN/SP. (author)

  20. Regulatory guides for qualifying the calculation methodology of Furnas by CNEN

    International Nuclear Information System (INIS)

    1987-10-01

    Regulatory guides are presented which will be used for qualifying the calculation methodology of FURNAS by CNEN, in the areas of Neutronics, Thermohydraulics, Accident Analysis and Fuel Rod Performance, as applied to Angra 1 NPP. (Author) [pt

  1. Performance of the CNEN MHD Blow-Down Loop Facility

    Energy Technology Data Exchange (ETDEWEB)

    Bertolini, E.; Brown, R.; Gasparotto, M.; Gay, P.; Toschi, R. [Laboratorio Conversione Diretta, CNEN, Frascati (Italy)

    1968-11-15

    The CNEN facility has been designed, manufactured and used for alkali-seeded noble gas MHD energy conversion research, as the major experimental effort during the first five-year CNEN Research Programme on MHD. The main specifications and the general arrangement with information on preliminary commissioning tests of some components were given at the Salzburg Symposium. Since then the facility has been successfully commissioned and from March 1967 has been working on MHD experiments. Efforts were made to reduce any adverse effects on the experimental MHD results that were due to inherent limitations of an experimental apparatus (particularly under open-circuit conditions). Great emphasis was placed on problems of caesium vaporization and the mixing with helium, the purity level of the mixture, measurements and the control system. The insulation of the plasma from ground was carefully treated, increasing the ratio between insulator resistance and typical plasma resistance as much as possible. Fluidynamic tests at room and high temperatures have shown that stability in the gas parameters (temperature, pressure and mass flow) can be maintained within few per cent for tens of seconds after a transient, giving a behaviour similar to a continuously running system. The high- temperature, alumina pebble-bed heater has successfully operated, bringing the helium-caesium mixtures up to 2000 Degree-Sign K and up to 4 atm abs pressure, and undergoing seven thermal cycles, for a total of more than 2000 hours operation at top temperature. Preheated generator ducts using alumina as insulator and tantalum for electrodes performed satisfactorily, very much attention having been given in the design to reduction of thermal shocks and to obviating possible paths for caesium leakage and short-circuiting of electrode leads. The pulsed liquid nitrogen precooled magnet has been run for about 50 pulses at high field ( Asymptotically-Equal-To 4.5 tesla) with an operating time of about 10

  2. The IPEN/CNEN-SP PSD neutron diffractometer

    International Nuclear Information System (INIS)

    Parente, Carlos Benedicto Ramos; Mazzocchi, Vera Lucia; Mascarenhas, Yvonne Primerano

    2004-01-01

    Full text: A new IPEN-CNEN/SP neutron powder diffractometer is under construction at the 4 MW thermal IEA-R1m research reactor. It is an upgrading of the old IPEN-CNEN/SP multipurpose neutron diffractometer. The main modifications introduced in the old instrument are: installation of a position sensitive detector (PSD) and a bent perfect single crystal monochromator (a focusing Si monochromator). The PSD is formed by eleven linear detector elements, clamped together at each end to form a rigid plane. The PSD is installed in a detector shielding which is supported by two arms fixed in a large rotary table. This table provides the instrument with the 2θ angular movement. A smaller rotary table, placed underneath and concentric with the larger one, provides the ω(θ) movement. Both tables are driven by a computer controlled geared mechanism. The computer also makes the data acquisition. A rotating-oscillating collimator, placed at the entrance to the detector shielding, eliminates parasitic scattering from furnace or cryorefrigerator heat shields in the vicinity of the sample. The collimator also makes the PSD less sensitive to ambient background. The PSD spans an angular range of 20 deg of a diffraction pattern, resulting in a quite good resolution for the instrument. An extended powder diffraction pattern can be obtained by moving the detector and collecting the data in 20 deg segments. With a take-off angle of 84 deg, the monochromator can be positioned to produce 4 different wavelengths, namely 1.111, 1.399, 1.667 and 2.191 A. Other parts constructed for the new instrument are: a in-pile collimator, a monochromatic beam collimator and a neutron shield, large enough to accommodate the monochromator, a beam shutter and the monochromatic beam collimator. In comparison to the former instrument, the new diffractometer will have better resolution and will be ca. 600 times faster in data acquisition. At the present time, the new instrument is in the final steps of

  3. Methodology of ABNT ISO/IEC GUIA 25 implantation in the laboratories of radionuclides analysis in environmental samples of the Analysis Division/CNEN

    International Nuclear Information System (INIS)

    Oliveira, Josue Peter de

    1997-07-01

    The ISO/EEC Guide 25: 1993 Standard G eneral requirements for the competence of calibration and testing laboratories . Is published in Brazil by Brazilian Association for Technical Standards (ABNT) as ABNT ISO/DEC GUIA 25 and establishes general requirements a laboratory must demonstrate to meet, in order to be recognized as having technical competence (accreditation) to carry out specifics calibration or testing. Therefore, the accredited laboratory starts, respectively, taking part from the Brazilian Calibration Network (RBC) or from the Brazilian Testing Laboratories Network (RBLE) . The Environmental Radioanalysis Division (DIAMB) from Environmental Radiological Protection Department (DEPRA) from Institute of Radiation Protection and Dosimetry (IRD) from Brazilian National Nuclear Energy Commission (CNEN) is a laboratory responsible for analyzing radionuclides deriving for the samples from DEPRA's Surveillance Program, research and servings, due to an eventual radionuclide contamination in environment, foods and others raw materials for human consumption; including for importation and exportation products certification purposes. For all these reasons, DIAMB needs its formal recognition for carrying out radionuclides analysis in environmental samples. This work aims to provide a methodology in order to guide a laboratory which has the intention to implement a accreditation process. It also describes policies to meet the requirements related to the Standard, guidance needed to specification of some steps and also comments some points from the Standard in order to become easier all the accreditation process comprehension. (author)

  4. Individual performance evaluation of the Brazilian Nuclear Energy Commission (CNEN): a meta-evaluative study

    International Nuclear Information System (INIS)

    Bezerra, Leonardo Ferreira

    2017-01-01

    The present study is a summative meta-evaluation that had as objective to evaluate the quality of the process of evaluation of individual performance of the servers of the National Commission of Nuclear Energy, being guided by the scientific curiosity to know to what extent the evaluation of performance the National Commission for Nuclear Energy meets the quality standards disseminated by the Joint Committee on Standards for Educational Evaluation. The methodology chosen to be used was based on the management approach and had as a guiding principle of the study the elaboration of a framework of criteria considering the aforementioned standards. The criteria established in the criteria framework guided the preparation of the items of the questionnaire sent to the National Commission of Nuclear Energy servers. In addition to the questionnaire, the observation of this author was considered in the context where the phenomenon occurred, which allowed a better reflective analysis of the data collected by the questionnaire. Regarding the results, it can be inferred that the performance evaluation developed at the National Commission of Nuclear Energy can be considered of quality, highlighting the servers' trust for the data, the communication process of the program stages, the credibility of the evaluators, the process of negotiation of goals and adaptability of the instrument over the course of the cycle. However, there are some opportunities for improvement, considering the relevance of evaluation as a tool to improve the performance of the autarchy's servers. Among the points that need to be improved is that there is currently a lack of knowledge about the legal basis and justification of the process of evaluation process by the servers and the lack of clarity regarding the content of the final evaluation report. Among the recommendations of this study, one can consider as the most relevant the need to: disseminate the results of this meta-evaluation to the servers; promotion of meetings to raise awareness of the importance of evaluation, explaining its legal basis, justifications; and qualification of the National Commission of Nuclear Energy people management area evaluators in order to pass them through specialization processes in the field of individual performance appraisal. (author)

  5. Activity report 1991 from IPEN - Brazilian Institute of Energy and Nuclear Researches, CNEN/SP

    International Nuclear Information System (INIS)

    1991-01-01

    This report presents the main events achieved at IPEN in 1991: actions related to international cooperation, developed administrative activities as well as the matched results in the areas of Fuel Cycle, Nuclear Reactors, Application of Nuclear Techniques, Radiation Protection and Logistic Support

  6. Anions environmental monitoring control at CNEN-IPEN/SP-Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Villa, Sabrina M.; Marques, Joyce R.; Monteiro, Lucilena R.; Cotrim, Marycel E.B.; Pires, Maria Aparecida F., E-mail: lrmonteiro@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    The Nuclear and Energy Research Institute IPEN-CNEN/SP, to comply with guidelines and basic procedures to be observed by its installation regarding environmental control actions, related with conventional effluent release started in 2007 the Environmental Monitoring Program for stable chemical compounds (PMA-Q). This program includes, besides others parameters, ionic species such as Fluoride, Chloride, Nitrite-N, Nitrate-N and Sulfate, measured by Ion Chromatography. Among these compounds, Fluoride and Chloride are regulated in effluent discharges by CONAMA's Resolution 430/2011 and the Sao Paulo State Decree 8468/76. Fluoride, Chloride, Nitrite-N, Nitrate-N in groundwater are regulated by CONAMA's Resolution 396/2008. Considering the legal requirements, every year this program is revised and improvement actions are planned and implemented. The present paper will discuss these improvements to determine the individual performance of the laboratory related to those tests performed by ion chromatography. The adequacy actions performed were the construction of control charts (internal quality control) and the interlaboratory proficiency tests regular participation (external quality control). With these quality control actions it was possible to monitor continuously the laboratory performance, to identify and resolve analytical problems and also interlaboratory differences, to add value to the essay quality control and to provide additional confidence to the institutional program PMA-Q. The recent change in legislation by CONAMA Resolution 430/2011 and the requirements of Resolution CONAMA 396/2008 improvement requirements are also discussed in this work. (author)

  7. Anions environmental monitoring control at CNEN-IPEN/SP-Brazil

    International Nuclear Information System (INIS)

    Villa, Sabrina M.; Marques, Joyce R.; Monteiro, Lucilena R.; Cotrim, Marycel E.B.; Pires, Maria Aparecida F.

    2013-01-01

    The Nuclear and Energy Research Institute IPEN-CNEN/SP, to comply with guidelines and basic procedures to be observed by its installation regarding environmental control actions, related with conventional effluent release started in 2007 the Environmental Monitoring Program for stable chemical compounds (PMA-Q). This program includes, besides others parameters, ionic species such as Fluoride, Chloride, Nitrite-N, Nitrate-N and Sulfate, measured by Ion Chromatography. Among these compounds, Fluoride and Chloride are regulated in effluent discharges by CONAMA's Resolution 430/2011 and the Sao Paulo State Decree 8468/76. Fluoride, Chloride, Nitrite-N, Nitrate-N in groundwater are regulated by CONAMA's Resolution 396/2008. Considering the legal requirements, every year this program is revised and improvement actions are planned and implemented. The present paper will discuss these improvements to determine the individual performance of the laboratory related to those tests performed by ion chromatography. The adequacy actions performed were the construction of control charts (internal quality control) and the interlaboratory proficiency tests regular participation (external quality control). With these quality control actions it was possible to monitor continuously the laboratory performance, to identify and resolve analytical problems and also interlaboratory differences, to add value to the essay quality control and to provide additional confidence to the institutional program PMA-Q. The recent change in legislation by CONAMA Resolution 430/2011 and the requirements of Resolution CONAMA 396/2008 improvement requirements are also discussed in this work. (author)

  8. Nuclear energy: Brazilian Nuclear Program behind the scenes and the reflections in the national society and economy

    International Nuclear Information System (INIS)

    Grippi, Sidney

    2006-01-01

    The nuclear energy in the world, the Brazilian nuclear program, the industrial and social risks of nuclear segment, 20th century and the radiation accidents, the ionizing radiation effects in living beings, radioactive wastes, the Earth Letter and a list of CNEN regulations are presented

  9. Implantation of tomography qualities in Centro Regional de Ciencias Nucleares do Nordeste, Brazil; Implantacao das qualidades de tomografia no Centro Regional de Ciencias Nucleares do Nordeste, CNEN-PE, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Diniz, Osana F.; Silveira, Renata R.; Melo, Roberto T.; Oliveira, Marcia L., E-mail: osana.diniz@hotmail.com [Centro Regional de Ciencias Nucleares do Nordeste (CRCN-NE/CNEN-PE), Recife, PB (Brazil)

    2016-07-01

    The quality guarantee of the service offered by a ionizing radiation metrology laboratory is deeply connected to the conformity to the radiation beams implanted to the determination and definition present in the international standards and adopted by the Brazilian National Commission of Nuclear Energy – CNEN. The objective of this work was the implementation of computerized tomography qualities, RQT 8, 9 e 10, in accordance with the IEC-61267 standard in the Metrology Laboratory of the Northeast Regional Center of Nuclear Sciences (CRCN-NE), PE, Brazil. (author)

  10. Neutron activation analysis at CDTN/CNEN using the IPR-R1 Triga Mark I reactor

    International Nuclear Information System (INIS)

    Menezes, Maria Angela de B.C.; Maretti Junior, Fausto; Kastner, Geraldo Frederico; Amaral, Angela Maria; Souza, Wagner de

    2009-01-01

    This paper describes in summary the activities developed by the Laboratory for Neutron Activation Analysis since the starting up of the IPR-R1 TRIGA Mark I research reactor in 1960. This Laboratory is located at Centro de Desenvolvimento da Tecnologia Nuclear (Nuclear Technology Development Centre) / Comissao Nacional de Energia Nuclear (Brazilian Commission for Nuclear Energy), CDTN/CNEN. The activities of the Laboratory comprise the delayed fission neutron activation analysis, instrumental (comparative and parametric methods) and radiochemical / chemical methods. These methods are responsible for significant percentage of CDTN's analytical demand, meeting the clients' analytical needs and researches developed by the Laboratory, by CDTN and by other institutions. Over the years the work has been linked to the goals of the country and the institutions. Nowadays the neutron activation analysis is responsible for 70% of the analytical demand and the k 0 - Instrumental method for 80% of this demand answering clients' request and researches. In Brazil, CDTN is the only Institute that fully masters the Instrumental Neutron Activation Analysis k 0 -method using its own nuclear reactor. (author)

  11. Radioactive concrete sources at IRD/CNEN, Brazil, for calibration of uranium exploration and environmental field instruments

    International Nuclear Information System (INIS)

    Barreto, P.M.C.; Campos, C.A.; Malheiros, T.M.M.; Locborg, L.

    1988-01-01

    A radiometric calibration system consisting of eight radioactive concrete sources was constructed at the Institute of Radiation Protection and Dosimetry (IRD) of the Brazilian Nuclear Energy Commission (CNEN). These sources, stimulating rock outcrops, are available to geophysicists interested in uranium explotation and scientists working with natural radioactivity in environmental research. The sources are of cylindrical shape with 3m diameter and 0.5m thickness weighing approximately 7.5 tonnes each. They are disposed in a circle having in its centre a 4m diameter water pond for cosmi-ray and instrument noise corrections. Uranium, thorium and potassium ores were added to the concrete under such conditions as to achieve perfect homogenization. One hundred and four samples were collected and analysed by eight laboratories. In addition, in-situ radiometric grade determination were performed with calibrated instruments resulting a total of 2.100 determinations of U, Th and K, from which the reference values were assigned to each source. With this system, it is possible to calculate sensitivity constants and stripping ratios for portable gamma-ray spectrometers. It also provides excellent means for the calibration of radiation detectors used in environmental monitoring, in which humidity, temperature and omni-directional gamma flux, similar to the natural environmental, are simulated. (author) [pt

  12. Production of microspheres labeled with holmium-166 for liver cancer therapy: the preliminary experience at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Costa, Renata F.; Azevedo, Mariangela B.M.; Nascimento, Nanci; Sene, Frank F.; Martinelli, Jose R.; Osso Junior, Joao A.

    2009-01-01

    Microspheres labeled with therapeutic radionuclides for malignancies of liver are widely used in many countries. The internal radionuclide therapy uses a permanently implanted device, such as Therasphere R or SIR-Spheres R , or a biodegradable device that provides structural support for the radionuclide of choice and causes the tumor reduction. Three different types of material supports have been investigated, i.e., biodegradable polymer-based, glass-based and resin-based microspheres. Nowadays there is a project concerning the labeling of these 3 materials with 166 Ho being developed at IPEN-CNEN/SP and coordinated by the Radiopharmacy Directory. 166 Ho(t 1/2 =26.8 h) is a beta minus emitter (E max =1.84 MeV), with right properties for radiotherapy and can be produced with the low power Brazilian Nuclear Reactor IEA-R1m. The aim of this work is to describe the stage of development of this project. The initial experience used resin-based microspheres, a cation exchange resin labeled with 166 Ho, it showed the essential characteristics for liver therapy. Preliminary results of the preparation of glass-based microspheres labeled with 165 Ho showed that 5% of Ho 2 O 3 was incorporated in an aluminosilicate glass, through the process of spheronization by flame, which produced spherical microspheres with 20-40μm particle size. The preparation of biodegradable material, polymer-based microspheres, is in its initial stage and the objective is to prepare and label with 165 Ho different polymer-based microspheres. These combined efforts have been done to offer a national radiotherapeutic product for the the Brazilian nuclear medicine community at fair value and also to offer a viable possibility of treatment for patients affected by liver malignancies. (author)

  13. Production of microspheres labeled with holmium-166 for liver cancer therapy: the preliminary experience at IPEN/CNEN-SP

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Renata F.; Azevedo, Mariangela B.M.; Nascimento, Nanci; Sene, Frank F.; Martinelli, Jose R.; Osso Junior, Joao A., E-mail: renatafcosta@usp.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2009-07-01

    Microspheres labeled with therapeutic radionuclides for malignancies of liver are widely used in many countries. The internal radionuclide therapy uses a permanently implanted device, such as Therasphere{sup R} or SIR-Spheres{sup R}, or a biodegradable device that provides structural support for the radionuclide of choice and causes the tumor reduction. Three different types of material supports have been investigated, i.e., biodegradable polymer-based, glass-based and resin-based microspheres. Nowadays there is a project concerning the labeling of these 3 materials with {sup 166}Ho being developed at IPEN-CNEN/SP and coordinated by the Radiopharmacy Directory. {sup 166}Ho(t{sub 1/2}=26.8 h) is a beta minus emitter (E{sub max}=1.84 MeV), with right properties for radiotherapy and can be produced with the low power Brazilian Nuclear Reactor IEA-R1m. The aim of this work is to describe the stage of development of this project. The initial experience used resin-based microspheres, a cation exchange resin labeled with {sup 166}Ho, it showed the essential characteristics for liver therapy. Preliminary results of the preparation of glass-based microspheres labeled with {sup 165}Ho showed that 5% of Ho{sub 2}O{sub 3} was incorporated in an aluminosilicate glass, through the process of spheronization by flame, which produced spherical microspheres with 20-40mum particle size. The preparation of biodegradable material, polymer-based microspheres, is in its initial stage and the objective is to prepare and label with {sup 165}Ho different polymer-based microspheres. These combined efforts have been done to offer a national radiotherapeutic product for the the Brazilian nuclear medicine community at fair value and also to offer a viable possibility of treatment for patients affected by liver malignancies. (author)

  14. Radiological accident with Iodine-131 in the Radioisotope Division at IPEN-CNEN/SP (Brazil)

    International Nuclear Information System (INIS)

    Sanches, Matias Puga; Rodrigues, Demerval Leonidas

    1997-01-01

    The accident occurred in the first week of May 1995, in the Radioisotope Division-TPI, involving two tubes containing a total volume of 3 ml, aqueous solution of N Al 1 31, with 370 MBq and 1480 MBq activity is reported. Part of installation and six workers involved in the distribution process were contaminated with 131 I, but there were no contamination outside the building. The workers were decontaminated and the received radiation doses were evaluated by the Radiotoxicological Laboratory of IPEN-CNEN/SP together with IRD-CNEN/RJ. The building involved was closed and the activities stopped until the complete decontamination by the Radioprotection experts of IPEN-CNEN/SP. (author)

  15. Performance of IPEN/CNEN-SP Neutron Activation Analysis Laboratory for microelement determinations in proficiency testing

    International Nuclear Information System (INIS)

    Armelin, Maria Jose A.; Saiki, Mitiko; Souza, Gilberto B. de; Nogueira, Ana Rita A.

    2009-01-01

    The performance of Neutron Activation Laboratory, IPEN - CNEN/SP, was evaluated for the Ca, Fe, K, Mn, Na and Zn determinations in animal feed samples for ruminants through a proficiency test (PT) program. This PT program is organized by EMBRAPA Cattle Southeast to evaluate laboratories that analyze animal feed samples. Considering the fractions of satisfactory z-scores (%) of evaluated analytes to determine the laboratories performance, the general performance indicator obtained by IPEN - CNEN/SP ranged from 90 to 95% of the satisfactory results during the period of participation in the evaluation, four years. (author)

  16. Implementation of the Brazilian national repository

    International Nuclear Information System (INIS)

    Tello, Cledola Cassia Oliveira de

    2013-01-01

    Ionizing radiation in Brazil is used in electricity generation, medicine, industry, agriculture and for research and development purposes. All these activities can generate radioactive waste. At this point, in Brazil, the use of nuclear energy and radioisotopes justifies the construction of a national repository for radioactive wastes of low and intermediate-level. According to Federal Law No. 10308, Brazilian National Commission for Nuclear Energy (CNEN) is responsible for designing and constructing the intermediate and final storages for radioactive wastes. Additionally, a restriction on the construction of Angra 3 is that the repository is under construction until its operation start, attaining some requirements of the Brazilian Environmental Regulator (IBAMA). The RBMN Project (Repository for Low and Intermediate-Level Radioactive Wastes) aims at the implantation of a National Repository for disposal of low and intermediate-level of radiation wastes. This Project has some aspects that are unique in the Brazilian context, especially referring to the time between its construction and the end of its institutional period. This time is about 360 years, when the area will be released for unrestricted uses. It means that the Repository must be safe and secure for more than three hundred years, which is longer than half of the whole of Brazilian history. This aspect is very new for the Brazilian people, bringing a new dimension to public acceptance. Another point is this will be the first repository in South America, bringing a real challenge for the continent. The current status of the Project is summarized. (author)

  17. CNEN-NN 6.04 standard adaptation in Brazil for industrial radiographic work in occupied areas or public roads

    International Nuclear Information System (INIS)

    Teixeira, P.B.; Aquino, J.O. de; Souza, L.A. de

    1996-01-01

    The industrial radiographic work that uses mobile equipment in Brazil must be in compliance with the National Commission of Nuclear Energy (CNEN) Regulation CNEN-NN 6.04. It states that every works that employs radiographic equipment in occupied areas or public roads requires a specific radiation protection procedure. This procedure must be approved by the CNEN at least fifteen days before starting the job. It is not always possible to the users to get their licensing work at time, because the industrial radiography jobs need immediate actions. Furthermore, the CNEN-NN 6.04 Regulation does not specify what type of information the procedures should involve, so that some important information had been often missed, causing a delaying in the licensing procedures. The corrective and preventive actions taken by the CNEN to optimize this kind of jobs and to overcome bureaucratic difficulties are described. A standard radiation protection procedure is also presented. (authors). 2 refs., 2 tabs

  18. Organization and development of the Brazilian nuclear program

    International Nuclear Information System (INIS)

    Pinto, C. Syllus M.; Alves, R. Nazare; Lepecki, W.; Costa, H.M. da; Grinberg, M.; Grimberg, M.

    1977-01-01

    The paper presents the Brazilian Nuclear Energy Program: its development until the present stage, as well as the organizations and the distribution of responsibilities involved in its execution at the present time. The nuclear power policy is established at the Presidency of the Republic and is planned, executed and controlled through the Ministry of Mines and Energy. Directly subject to the Ministry is the Brazilian Nuclear Energy Commission (CNEN), which has regulatory, standardization, licensing, planning and surveillance functions. The nuclear fundamental research and manpower formation are also under CNEN responsibility. Also subject to the Ministry are two companies responsible for the execution of the Programme: the Centrais Eletricas Brasileiras S.A. - ELETROBRAS, which advises on the granting of permits for the construction and operation of nuclear power plants, and the Empresas Nucleares Brasileiras S.A. - NUCLEBRAS, which holds the monopoly of the nuclear fuel cycle in the country, designs and builds nuclear power plants and provides assistance to the electric utilities as well as promotes the participation of the Brazilian industry in the nuclear field. Besides describing the new distribution of regulatory functions given by law to the CNEN, this paper gives special emphasis to the large industrial complex which is in the process of being established with the setting-up of the many NUCLEBRAS subsidiaries in joint-venture with German firms in the nuclear field, as a consequence of the Industrial Cooperation between Brazil and the Federal Republic of Germany in the Field of the Peaceful Uses of Nuclear Energy signed between the two countries on June 27, 1975. The programs for these subsidiaries are presented and their participation in the Brazilian Nuclear Energy Programme is discussed. The technology transfer aspects of the industrial activities are also discussed, based on the Government's policy on the subject [es

  19. Organization and development of the Brazilian nuclear programme

    International Nuclear Information System (INIS)

    Pinto, C.S.M.; Souza, J.A.M. de; Grinberg, M.; Alves, R.N.; Costa, H.M. da; Grimberg, M.

    1977-01-01

    The paper presents the Brazilian Nuclear Energy Programme, its development, the organizations and the distribution of responsibilities involved in its execution at the present time. The nuclear power policy is established at the Presidency of the Republic and is planned, executed and controlled through the Ministry of Mines and Energy. Directly subject to the Ministry is the Brazilian Nuclear Energy Commission (CNEN), which has regulatory, standardization, licensing, planning and surveillance functions. The nuclear fundamental research and manpower formation are also under CNEN responsibility. Also subject to the Ministry are two companies responsible for the execution of the Programme: the Centrais Eletricas Brasileiras S.A. - Eletrobras, which advises on the granting of permits for the construction and operation of nuclear power plants, and the Empresas Nucleares Brasileiras S.A. - Nuclebras, which holds the monopoly of the nuclear fuel cycle in the country, designs and builds nuclear power plants and provides assistance to the electric utilities and promotes the participation of Brazilian industry. Besides describing the new distribution of regulatory functions given by law to CNEN, the paper gives special emphasis to the large industrial complex in the process of being established through the setting-up of the many Nuclebras subsidiaries in joint venture with German firms under the Industrial Co-operation Agreement Between Brazil and the Federal Republic of Germany in the Field of the Peaceful Uses of Nuclear Energy. The programmes for these subsidiaries are presented and their participation in the Brazilian Nuclear Energy Programme is discussed. The technology transfer aspects of the industrial activities are also discussed. (author)

  20. Utilization of basic directives radioprotection norm in industrial radiography services CNEN-3.01

    International Nuclear Information System (INIS)

    Dagnino, R.

    1989-01-01

    The characteristics of the introduction of the standart CNEN - 3.01 - Diretrizes Basicas de Radioprotecao in industrial radiography field, mainly referred to service companies are presented. Some suggestions are proposed in order that the accomplishment of these principles does not stop the works which use this inspection technique. (author)

  1. Implantation of licensing norm for industrial radiography installations - Norm CNEN-NE-604 Rev.1

    International Nuclear Information System (INIS)

    Heilbron Filho, P.F.L.; Oliveira, S.M.V. de.

    1988-04-01

    The results of audits carried out by DIN/CNEN (Department of Nuclear Installations) in firms of Rio de Janeiro and Sao Paulo, Brazil, that use industrial radiography for implantation of the norm of installation licensing, are presented. (M.C.K.) [pt

  2. The Brazilian Nuclear Energy Commission and the health

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    The Program of Health Section / Brazilian Cnen, which was elaborated to promote the use of ionizing radiations (nuclear and x-ray techniques) in benefit of Brazilian health, with safety assurance of patients, personnels, population and environment, is presented. The Ministry of Health, industries, Medical and Physicist Associations, Universities and Research Centers are participants of this program. The activities involved in the program are: production of isotopes and radiopharmaceuticals; radiation detectors and nuclear instrumentation; radiation protection and dosimetry; education and training of human resources; applied research and new technologies. The guiding and actions that the section will adopt to attend the growing necessities of Brazilian society, considering technological powers, management, available substructure and associated difficulties are defined. (M.C.K.) [pt

  3. Genesis of the Brazilian nuclear power plants program

    International Nuclear Information System (INIS)

    Syllus, G.; Lepecki, W.

    1996-01-01

    The genesis of the Brazilian Nuclear Power Program is described by the authors - who participated in the events - from the beginning of the sixties, until the definition and the start of the implementation in 1975 of the Reference Nuclear Power Program. A description is made of the main events, studies and decisions that contributed to the evolution of the Program: the GTRP (Nuclear Power Plant Working Group); the Thorium Group; the Lane Group; the decision about Angra 1; CNEN's analyses about the reactor line and, finally, the creation of CBTN (Nuclear Technology Brazilian Company), which elaborated the studies that resulted in the final definition of the Program and led to the Brazilian German Agreement and the establishment of NUCLEBRAS. (author)

  4. A measurement evaluation program to support nuclear material control and accountability measurements in Brazilian laboratories

    Energy Technology Data Exchange (ETDEWEB)

    Dias, Fabio C., E-mail: fabio@ird.gov.br [Comissao Nacional de Energia Nuclear (CNEN-RJ), Rio de Janeiro, RJ (Brazil); Mason, Peter, E-mail: peter.mason@ch.doe.gov [New Brunswick Laboratory (DOE/NBL), Argonne, IL (United States)

    2013-07-01

    A measurement evaluation program (MEP) is one of a number of valuable tools that analytical chemists can use to ensure that the data produced in the laboratory are fit for their intended purpose and consistent with expected performance values at a given time. As such, participation in a MEP is an important indicator of the quality of analytical data, and is recognized as such by independent regulatory and/or accreditation bodies. With the intent to implement such a program in Brazil, in November 2012 the Nuclear Energy Commission of Brazil (CNEN), with support from the Department of Energy of the United States' (US-DOE International Safeguards and Engagement Program), decided to initiate a technical cooperation project aiming at organizing a Safeguards Measurement Evaluation Program (SMEP) for Brazilian facilities. The project, entitled Action Sheet 23, was formalized under the terms of the Agreement between the US-DOE and the CNEN concerning research and development in nuclear material control, accountancy, verification, physical protection, and advanced containment and surveillance technologies for International Safeguards Applications. The work, jointly performed by the CNEN's Safeguards Laboratory (LASAL) and the New Brunswick Laboratory (NBL), has the objective to strengthen the traceability of accountability measurements and ensure adequate quality of safeguards measurements for facilities within Brazil, utilizing test samples characterized and provided by NBL. Recommendations to participants included measurement frequency, number of results per sample and format for reporting results using ISO methods for calculating and expressing measurement uncertainties. In this paper, we discuss the main steps taken by CNEN and NBL aiming at implementing such a program and the expected results, in particular the impact of uncertainty estimation on the evaluation of performance of each participant laboratory. The program is considered by Brazilian safeguards

  5. Applications of artificial intelligence and expert systems in ANGRA-I emergency preparedness - The Brazilian case

    International Nuclear Information System (INIS)

    Alvarenga, M.A.B.; Guimaraes, A.C.F.

    1991-01-01

    This study describes a system to follow a nuclear accident and points the areas where the presence of artificial intelligence could be necessary: diagnostics systems, emergency classification, accident management strategies and protective actions. Logical rules could be combined with deterministic equations to provide an expert system prototype to manage a nuclear emergency preparedness for nuclear reactors (fast or thermal) in the Brazilian Nuclear Energy National Commission. (CNEN). (author)

  6. A measurement evaluation program to support nuclear material control and accountability measurements in Brazilian laboratories

    International Nuclear Information System (INIS)

    Dias, Fabio C.; Mason, Peter

    2013-01-01

    A measurement evaluation program (MEP) is one of a number of valuable tools that analytical chemists can use to ensure that the data produced in the laboratory are fit for their intended purpose and consistent with expected performance values at a given time. As such, participation in a MEP is an important indicator of the quality of analytical data, and is recognized as such by independent regulatory and/or accreditation bodies. With the intent to implement such a program in Brazil, in November 2012 the Nuclear Energy Commission of Brazil (CNEN), with support from the Department of Energy of the United States' (US-DOE International Safeguards and Engagement Program), decided to initiate a technical cooperation project aiming at organizing a Safeguards Measurement Evaluation Program (SMEP) for Brazilian facilities. The project, entitled Action Sheet 23, was formalized under the terms of the Agreement between the US-DOE and the CNEN concerning research and development in nuclear material control, accountancy, verification, physical protection, and advanced containment and surveillance technologies for International Safeguards Applications. The work, jointly performed by the CNEN's Safeguards Laboratory (LASAL) and the New Brunswick Laboratory (NBL), has the objective to strengthen the traceability of accountability measurements and ensure adequate quality of safeguards measurements for facilities within Brazil, utilizing test samples characterized and provided by NBL. Recommendations to participants included measurement frequency, number of results per sample and format for reporting results using ISO methods for calculating and expressing measurement uncertainties. In this paper, we discuss the main steps taken by CNEN and NBL aiming at implementing such a program and the expected results, in particular the impact of uncertainty estimation on the evaluation of performance of each participant laboratory. The program is considered by Brazilian safeguards authorities

  7. 137 Cs and 90 Sr in marine samples from Brazilian southern coast

    International Nuclear Information System (INIS)

    Godoy, Jose Marcus; Carvalho, Zenildo L.; Pereira, Jose Carlos A.; Pereira, Wagner S.; Ferreira, Ana Cristina M.; Fernandes, Flavio C.; Danelon, Olga M.

    2000-01-01

    In this paper are presented the results related to monitoring program of Cs-137 and Sr-90 distribution in marine ecosystem from Brazilian southern coast. This program is performed together Instituto de Radioprotecao e Dosimetria (IRD/CNEN/MCT) and the Instituto de Estudos do Mar Almirante Paulo Moreira, aiming the evaluation of artificial radionuclide contents present in marine samples. The program, have started in experimental character in 1996 and became a routine program, carried out yearly

  8. The Brazilian external individual monitoring scenario

    International Nuclear Information System (INIS)

    Mauricio, Claudia L.P.; Silva, Claudio R. da; Cunha, Paulo G. da

    2015-01-01

    In order to improve radiation protection it is necessary to have knowledge of the occupational radiation dose levels in all radiation facilities. This information comes from individual monitoring services, which are responsible for measuring and providing information about workers' radiation exposure. In 1981, the Comissao Nacional de Energia Nuclear (CNEN) of Brazil starts to develop a comprehensive system for regulation and storage of occupational radiation dose. This paper starts with an overview of the evolution of the Brazilian authorization and data storage system for external individual monitoring. It starts with a rule for authorization of all Brazilian photon individual monitoring services and the obligation for them to send the measured dose to CNEN. Up to now there is no regulation for neutron individual monitoring. The aim of this paper is to present the current scenario of the Brazilian external monitoring system, reinforcing its importance and remaining problems. The number of monitored workers greatly increases every year, having surpassed 150,000 people monitored. The stored data show that the mean annual occupational external dose is decreasing from 2.4 mSv in 1987 to about 0.6 mSv, in 2012, but there is still some not realistic very high dose measured (higher than 100 mSv), without investigation. About 80% of the annual dose values are lower than the monthly register level. As expected, the higher real photon doses are found in Nuclear Medicine, Industrial Radiology and Interventional Radiology. All recorded annual neutron dose values are lower than 20 mSv. (author)

  9. The experience of CDTN/CNEN, Centro de Desenvolvimento da Tecnologia Nuclear: A medium size nuclear research centre in Brazil

    International Nuclear Information System (INIS)

    Sobrinho, P.

    2001-01-01

    At first a university research centre, then a captive research centre of the state owned company in charge of establishing a nuclear industry in Brazil, then a research centre of CNEN (the Brazilian Nuclear Energy Authority), nearing its 50 th anniversary, CDTN has a rich experience. even keeping the project portfolio around a number of traditional nuclear energy areas such as nuclear reactors, materials, environment, process engineering, waste management, radiological protection, the institution experienced an evolution in the substance of the proposed projects. This evolution represents the different institutional insertions, but the major changes occurred at a time when, due to a lesser demand from the nuclear sector and other factors, the explicit idea of producing outputs for the benefit of society received a large acceptance from the employees. The challenges to the institution at this time are commented upon. Retirements, coupled to the lack of job openings, work together for the decrease in the staff number, one major challenge. Up to a certain point, private companies have been hired to fill some of the organisational needs, but it is felt that a limit to this policy is being reached. It is argued that, even in the absence of a strong demand from the energy generation sector, a number of opportunities are still available to a NRC in a developing country. Maturity of nuclear energy and applications of radiation tend to transfer the focus of the activities from the fundamentals of nuclear science and technology to quality related issues, a requirement of the modern times. quality systems cannot substitute for the in depth knowledge of the fundamentals. (author)

  10. Large sample neutron activation analysis: establishment at CDTN/CNEN, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Menezes, Maria Angela de B.C., E-mail: menezes@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil); Jacimovic, Radojko, E-mail: radojko.jacimovic@ijs.s [Jozef Stefan Institute, Ljubljana (Slovenia). Dept. of Environmental Sciences. Group for Radiochemistry and Radioecology

    2011-07-01

    In order to improve the application of the neutron activation technique at CDTN/CNEN, the large sample instrumental neutron activation analysis is being established, IAEA BRA 14798 and FAPEMIG APQ-01259-09 projects. This procedure, LS-INAA, usually requires special facilities for the activation as well as for the detection. However, the TRIGA Mark I IPR R1, CDTN/CNEN has not been adapted for the irradiation and the usual gamma spectrometry has being carried out. To start the establishment of the LS-INAA, a 5g sample - IAEA/Soil 7 reference material was analyzed by k{sub 0}-standardized method. This paper is about the detector efficiency over the volume source using KayWin v2.23 and ANGLE V3.0 software. (author)

  11. The CNEN, Flamanville 3 and the English project of Hinkley Point

    International Nuclear Information System (INIS)

    Reber, Laurent

    2014-01-01

    The CNEN is the National Centre of Nuclear Equipment. It's an engineering unit of EDF. After a brief presentation of this department which is one of the six engineering departments of EDF, the CNEN manager presents the Flamanville EPR, its design characteristics and objectives (notably in terms of safety and availability). He comments the status of the construction, gives some explanations to the difficulties faced during this construction. He outlines the greater importance given to safety with respect to reactors of previous generations. Then, he addresses the British Hinkley Point project, its context, the requirements expressed by the British nuclear safety authority. As studies must be performed in the host country, the British nuclear engineering organisation is indicated. The content of the contract between EDF and the British is summarized

  12. Pretreatment procedures applied to samples to be analysed by neutron activation analysis at CDTN/CNEN

    International Nuclear Information System (INIS)

    Francisco, Dovenir; Menezes, Maria Angela de Barros Correia

    2009-01-01

    The neutron activation technique - using several methods - has been applied in 80% of the analytical demand of Division for Reactor and Analytical Techniques at CDTN/CNEN, Belo Horizonte, Minas Gerais. This scenario emphasizes the responsibility of the Laboratory to provide and assure the quality of the measurements. The first step to assure the results quality is the preparation of the samples. Therefore, this paper describes the experimental procedures adopted at CDTN/CNEN in order to uniform conditions of analysis and to avoid contaminations by elements present everywhere. Some of the procedures are based on methods described in the literature; others are based on many years of experience preparing samples from many kinds of matrices. The procedures described are related to geological material - soil, sediment, rock, gems, clay, archaeological ceramics and ore - biological materials - hair, fish, plants, food - water, etc. Analytical results in sediment samples are shown as n example pointing out the efficiency of the experimental procedure. (author)

  13. k0IAEA software validation at CDTN/CNEN, Brazil, using certified reference materials

    International Nuclear Information System (INIS)

    Menezes, M.A.B.C.; Jacimovic, R.

    2007-01-01

    The IAEA distributed the k 0I AEA software package program to several laboratories. The Laboratory for Neutron Activation Analysis, at CDTN/CNEN (Centro de Desenvolvimento da Tecnologia Nuclear/Comissao Nacional de Energia Nuclear), Belo Horizonte, Brazil, acquired the k 0I AEA software package during the Workshop on Nuclear Data for Activation Analysis, 2005, held at the Abdus Salam International Centre for Theoretical Physics, Trieste, Italy. This paper is about the validation procedure carried out at the local laboratory aiming at the validation of the k 0I AEA software package. After the software was set up according to the guidelines, the procedure followed at CDTN/CNEN to validate the k 0I AEA software was to analyse several reference materials. The overall results pointed out that the k 0I AEA software is working properly. (author)

  14. Control system and nuclear materials inventory at IPEN/CNEN-SP, Brazil

    International Nuclear Information System (INIS)

    Araujo, Jose Adroaldo de; Enokihara, Cyro Teiti

    2002-01-01

    The history, requirements, organization, and operation of the State System of Accounting and Control from the Institute for Energetic and Nuclear Research (IPEN-CNEN/SP) are described. The implementation system at the institution take into consideration the national and international safeguards requirements. It has started by the nuclear material (U, Pu and Th) physical inventory taking, including their provenance and transformation. The earlier computerized accounting system used for control has been replaced by a new one developed by the National Authority (CNEN/CSG). The optimized system has more flexibility, giving a more effective answer to any occurred change on Material Balance Area. The present system make use of an effective methodology. (author)

  15. The insulin radioimmunoassay kit prepared by IPEN-CNEN/SP - Brazil

    International Nuclear Information System (INIS)

    Mesquita, C.H. de; Silva, C.P.G. da; Hamada, M.M.

    1985-11-01

    The specification and methodological aspects of the insulin radioimmunoassay kit produced by IPEN-CNEN/SP - Brazil are described. The limitations taking care and the following quality control parameters or procedures are discussed: specific radioactivity, comparison between two insulin - 125 I purification procedures, affinity constant 'K' of the antigen - antibody reaction, minimal detectable dose (MDD), kinetics degradation of the radioinsulin, radioassay imprecision profile, radioassay performance temperature dependence and normal values histogram. (Author) [pt

  16. MAPRAD: mapping of radioactivity in Brazilian soils

    International Nuclear Information System (INIS)

    Ribeiro, Fernando C.A.; Signorelli, Carla de A.; Conti, Claudio de C.; Lauria, Dejanira da C.; Ferreira, Ingryd M.; Carvalho, Laercio L. de; Rio, Monica A. Pires do; Trindade Filho, Octavio Luiz; Gonzalez, Sergio de A.; Silva, Tadeu Augusto de A.; Sousa, Wanderson de O.; Cunha, Fernanda G. da

    2011-01-01

    The MAPRAD Project main objective is to increase the knowledge of the distribution of natural radioactivity in soils of Brazilian national territory and to provide (among others) information which are essential for medical geology and environmental radiation safety researches and for decision-making process regarding soil contamination levels. It also aims to make available the generated information for researchers and for public, through an online database. Soil samples are collected by the Geological Survey of Brazil (CPRM) and are sent to the Institute of Radioprotection and Dosimetry (IRD), National Commission of Nuclear Energy (CNEN), where they are processed and analyzed for determination of concentrations of radionuclides by gamma spectrometry. The results are inserted into a database containing the sample information as geographic coordinates of the samples and land use. After the sample analysis, results are made available for the scientific community access on Internet. (author)

  17. Radiological accident with Iodine-131 in the Radioisotope Division at IPEN-CNEN/SP (Brazil); Acidente radiologico com iodo-131 nas instalacoes da Divisao de Radioisotopos do IPEN-CNEN/SP (Brasil)

    Energy Technology Data Exchange (ETDEWEB)

    Sanches, Matias Puga; Rodrigues, Demerval Leonidas [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    1997-12-31

    The accident occurred in the first week of May 1995, in the Radioisotope Division-TPI, involving two tubes containing a total volume of 3 ml, aqueous solution of N Al{sup 1}31, with 370 MBq and 1480 MBq activity is reported. Part of installation and six workers involved in the distribution process were contaminated with {sup 131} I, but there were no contamination outside the building. The workers were decontaminated and the received radiation doses were evaluated by the Radiotoxicological Laboratory of IPEN-CNEN/SP together with IRD-CNEN/RJ. The building involved was closed and the activities stopped until the complete decontamination by the Radioprotection experts of IPEN-CNEN/SP. (author) 2 refs., 1 fig., 1 tab.; e-mail: msanches at net.ipen.br; dirodri at net.ipen.br

  18. Proposal for intake model for workers at IPEN-CNEN/SP who handle 131 I

    International Nuclear Information System (INIS)

    Todo, A.S.; Potiens Junior, A.J.; Gaburo, J.C.; Sanches, M.P.; Oliveira, E.M.

    1997-01-01

    The intake model for the two groups of workers at IPEN-CNEN/SP is presented. They handle iodine compounds during the processing of irradiated targets and at labeling of radiopharmaceutical compounds. The intake model for the workers are proposed from the knowledge of the activities carried out in the plant and the internal monitoring program of the workers. In this study, the intake is considered to be taken uniformly during the days of major activities carried out by the workers. In practice, the application of this model has be shown suitable, for the studied groups

  19. Nuclear occupational safety in uranium conversion facility at the IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Gaburo, J.; Silva, T. de M. da; Sordi, G.-M.A.A.

    1988-10-01

    After a brief description of the operations involved in the Uranium Process Conversion at the IPEN-CNEN/SP it is shown the principal radioactive sources exposure, the health physics procedures implemented and finally are discussed the doses received by the workers. The health physics measurements includ air sampling, internal contamination control by bioassay analysis and workplace monitoring for external radiation. The air monitoring results show in some points that the radiation levels are very near of the 3/10 of the DAC, but the permanence of the workers are very short. This fact is confirmed by the results of the bioassay analysis performed on the workers. (author) [pt

  20. Eurex Euratom-CNEN agreement tenth annual report for the year 1974

    International Nuclear Information System (INIS)

    Calleri, G.; Dworschak, H.; Rolandi, G.

    1977-01-01

    This report covers the tenth year of activity in connection with the Eurex project since the signing of Euratom-CNEN Agreement no.001-64-11 RC-II for the construction, operation use for industrial research purposes of the Eurex plant. The report summarizes the contents of three four-monthly reports published during 1974 and presents a summary statement of expenditure. The report contains the following parts: management of the reprocessing division; planning and construction of the plant (modification); cold tests; laboratory and pilot-scale experiments prior to start-up of the plant; industrial operation of the plant

  1. Designing a water calorimeter as primary standard of gamma rays at IPEN/CNEN

    International Nuclear Information System (INIS)

    Cintra, Felipe B. de; Caldas, Linda V.E.

    2013-01-01

    This work aims to describe the present stage and the next steps of the development of a water calorimeter of the Calibration Laboratory of IPEN/CNEN. This calorimeter will be used as a primary standard of gamma ray sources at the laboratory. Between the design and the construction step it will be shown how this model was chosen and how it is modeled virtually with computer simulation. The two main codes used, MCNP and Fluent, to characterize the prototype before its construction are presented. (author)

  2. 123 I production using CV-28 cyclotron from IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Mestnik, S.A.C.; Mengatti, J.; Nieto, W.; Yanagawa, S.I.; Sumiya, L.C.A.; Silva, C.P.G.; Osso Junior, J.A.

    1992-01-01

    The main conditions for iodine 123 production by 124 Te (p,2 n) 123 I reaction were presented, using the cyclotron CV-28 at IPEN-CNEN/SP, with protons of E max = 24 MeV. Two types of targets (Te O 2 and Te O 2 + 2% Al 2 O 3 ) and the influence of Al 2 O 3 in iodine release were studied. After the selection, the 124 Te O 2 (96,2%) target, was melted in platinum support and irradiated with proton current until 12 mu A. The separation of 123 I was made by dry distillation, using induction furnace and O 2 atmosphere. (C.G.C.)

  3. Evaluation of uncertainties in X radiation metrologic chain in the Secondary Standard Dosimetry Laboratory/IRD-Brazilian CNEN

    International Nuclear Information System (INIS)

    Fonseca Coelho, B.C. da.

    1987-01-01

    The equipment to measure ionizing radiation used in medicine needs appropriate technical qualifications to comply with their purposes and regular calibrations to assure the correct evaluation of associated quantities. By legal requirements, the annual calibration of users' dosemeters is to be done in a Secondary Standard Dosimetry Laboratory (SSDL), andthe SSDL'S standard dosemeters are refered to a Primary Standard Dosimetry (PSDL), establishing a rigourous metrological network. The SSDL network. The SSDL needs to maintain, regularly, a quality control program for short and Long term stability of standard dosemeters. The purpose of the work was to determine the uncertainties associated to technical procedures of X-rays calibration at the SSDL/IRD/IRD. To evaluate the influence of the nine main parameters that can give origin to uncertainties, specific procedures and methods are established, according to international requirements and recomendations. The methods are based on the comparison of the behaviour of the users' dosemeters, with a standard dosemeter in the many measuring conditions set up for the secondary standard used as a reference. The total uncertainty obtained was 1,81% usig a conservative procedure, to protect the users and patients. When needed to transfer the calibration factor and their uncertainty, the procedure used was to determine the uncertainty under the worsst possible operating conditions of the equipment, to obtain a superestimated value. This represents an excellent result for an SDDL of IAEA Network. (autor) [pt

  4. Application of NAA to the determination of mineral and trace elements in Brazilian diets at IPEN/CNEN/SP

    International Nuclear Information System (INIS)

    Favaro, D.I.T.; Maihara, V.A.; Souza, S.A.; Vasconcellos, M.B.A.; Mafra, D.; Cordeiro, M.B.C.; Cozzolino, S.M.F.

    2000-01-01

    Concentration of the 14 elements Br, Ca, Cl, Co, Cs, Fe, K, Mn, Na, Rb, Sc, Se and Zn have been determined by INAA in diets of four different groups: (a) 19 pre-school children, (b) 18 healthy adults, (c) 23 elderly people living in private institutions and (d) 19 patients with chronic renal failure (CRF). The contents of proteins, lipids and carbohydrates were also analysed in the diets. The daily intakes of the elements analysed were compared to the recommended values set by RDA or WHO. (author)

  5. Control and reception of out of use radioactive sources at the CDTN/CNEN, Minas Gerais, Brazil; Controle e recebimento de fontes radioativas fora de uso no CDTN/CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Reis, Luiz C.A.; Guzella, Marcia F.R.; Seles, Sandro R.N.; Cuccia, Valeria, E-mail: reislca@cdtn.b, E-mail: mfrg@cdtn.b, E-mail: seless@cdtn.b, E-mail: vc@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil)

    2011-10-26

    For reception of the received sources and for accomplish with CNEN regulations and IAEA recommendations, the CDTN have implanted a system for receiving those sources and all the procedures for effective control and recovering of information. The CDTN posses a source deposit, a data bank for the inventory and also a Laboratory for Treatment of Sealed Sources

  6. Multi-elemental profile of some Brazilian make-up products by instrumental neutron activation analysis

    Energy Technology Data Exchange (ETDEWEB)

    Dalmazio, Ilza; Menezes, Maria Angela de B.C., E-mail: id@cdtn.b, E-mail: menezes@cdtn.b [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil). Servico de Reator e Tecnicas Analiticas. Lab. de Ativacao Neutronica

    2011-07-01

    Recent works have shown that analysis in cosmetics and beauty products from the European and Asian markets indicate the presence of U, Th and rare earths besides other trace elements. Considering these previous findings and health issues, it would be valuable to obtain information on elements in cosmetics available in the Brazilian market. The purpose of this study was to acquire a multi-elemental profile of some Brazilian make-up products of diverse brands. Samples of eye shadow, liquid base, facial concealer, lipstick, and compact face powder were analyzed applying neutron activation analysis, k{sub 0}-standardization method at CDTN/CNEN, using the TRIGA Mark I IPR-R1 research reactor. Concentrations of more than 30 elements in samples are presented and it was found elements included in Brazilian National Health Surveillance Agency prohibitive list, rare earths, Th and U in a minimum of two cosmetic samples. (author)

  7. Multi-elemental profile of some Brazilian make-up products by instrumental neutron activation analysis

    International Nuclear Information System (INIS)

    Dalmazio, Ilza; Menezes, Maria Angela de B.C.

    2011-01-01

    Recent works have shown that analysis in cosmetics and beauty products from the European and Asian markets indicate the presence of U, Th and rare earths besides other trace elements. Considering these previous findings and health issues, it would be valuable to obtain information on elements in cosmetics available in the Brazilian market. The purpose of this study was to acquire a multi-elemental profile of some Brazilian make-up products of diverse brands. Samples of eye shadow, liquid base, facial concealer, lipstick, and compact face powder were analyzed applying neutron activation analysis, k 0 -standardization method at CDTN/CNEN, using the TRIGA Mark I IPR-R1 research reactor. Concentrations of more than 30 elements in samples are presented and it was found elements included in Brazilian National Health Surveillance Agency prohibitive list, rare earths, Th and U in a minimum of two cosmetic samples. (author)

  8. Laboratory for Calibration of Gamma Radiation Measurement Instruments (LabCal) of Institute of Chemical, Biological, Radiological and Nuclear Defense (IDQBRN) from Brazilian Army Technology Center (CTEx)

    International Nuclear Information System (INIS)

    Amorim, Aneuri de; Balthar, Mario Cesar V.; Santos, Avelino; Vilela, Paulo Ricardo T. de; Oliveira, Luciano Santa Rita; Penha, Paulo Eduardo C. de Oliveira; Gonzaga, Roberto Neves; Andrade, Edson Ramos de; Oliveira, Celio Jorge Vasques de; Fagundes, Luiz Cesar S.

    2016-01-01

    This paper describes the calibration laboratory deployment steps (LABCAL) gamma ionizing radiation measuring instruments in the Army Technology Center, CTEx. Initially the calibration of radiation monitors will be held in the dosimetric quantity air kerma and operational quantity ambient dose equivalent H*(d). The LABCAL / CTEx has not yet authorized by CASEC / CNEN. This laboratory aims to calibrate the ionizing radiation instruments used by the Brazilian Army. (author)

  9. Act No. 1240 of 15 December 1971. Regulations concerning the restructuring of the National Nuclear Energy Commission (CNEN)

    International Nuclear Information System (INIS)

    1972-01-01

    This Act which annuls the preceding Act of 1960 with the exception of Sections 12 to 16, confirms the CNEN's responsibilities. As opposed to the previous Act this Act contains provisions concerning the National Institute for Nuclear Physics (INFN). (NEA) [fr

  10. Control and reception of out of use radioactive sources at the CDTN/CNEN, Minas Gerais, Brazil

    International Nuclear Information System (INIS)

    Reis, Luiz C.A.; Guzella, Marcia F.R.; Seles, Sandro R.N.; Cuccia, Valeria

    2011-01-01

    For reception of the received sources and for accomplish with CNEN regulations and IAEA recommendations, the CDTN have implanted a system for receiving those sources and all the procedures for effective control and recovering of information. The CDTN posses a source deposit, a data bank for the inventory and also a Laboratory for Treatment of Sealed Sources

  11. A database system for the control of radioactive effluents generated by the IPEN-CNEN/SP installations

    International Nuclear Information System (INIS)

    Maduar, M.F.

    1992-01-01

    A PC-compatible database system has been developed in order to optimize the control of liquid and gaseous effluents generated by the installations of IPEN-CNEN/SP. The system implements source-term generation, optimizes the discharge control of the effluents and allows several ways for the retrieval of data concerning to the effluents. (author)

  12. Analysis of scientific and technical production of IPEN-CNEN/SP in the period of 1984 to 1988

    International Nuclear Information System (INIS)

    Sugai, M.

    1989-01-01

    An analysis of scientific and technical production of Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP in the period of 1984 to 1988 is presented. It includes articles, dissertation, thesis, books, reports and papers presented in scientific meetings or published in the Publicacao IPEN series. (C.M.)

  13. Status of the implementation of Brazilian National Repository

    International Nuclear Information System (INIS)

    Tello, Cledola Cassia Oliveira de

    2015-01-01

    In Brazil, the use of nuclear energy and radioisotopes is increasing and it already justifies the construction of a national repository for radioactive wastes of low and intermediate-level. The Brazilian National Commission for Nuclear Energy (CNEN) is legally responsible for designing and constructing intermediate and final storages for radioactive wastes generated in all Country, in accordance to Federal Law No. 10308. Additionally, the Brazilian Environmental Regulator (IBAMA) lately is imposing to the implementation of new nuclear installations (e.g. Angra 3 NPP and Brazilian Multipurpose Reactor) that the National Repository should be in construction, before the start-up of those ones. In November 2009, the RBMN Project Charter was signed. The RBMN Project aims at the implantation of a National Repository to dispose the radioactive wastes of low- and intermediate-level. Some aspects about the Repository construction are very challenging, mainly due to the licensing process, which will be made for two different regulatory bodies, nuclear and environmental. The main achievements obtained till now are the establishment of the current Brazilian radioactive waste inventory, the conceptual design and the selection of candidate sites for the repository. The current status of the Project is summarized. (author)

  14. Brazilian energy

    International Nuclear Information System (INIS)

    O'Shaughnessy, H.

    1997-04-01

    Brazilian Energy provides all the information necessary for energy companies to invest and operate in Brazil, including: a review of Brazil's natural resources; an assessment of privatisation strategies at the federal, state and regional level; an analysis of the electricity industry and the future for Electrobras; an analysis of the oil industry and, in particular, Petrobras; a discussion of the fuel alcohol industry; the discovery of local natural gas, its prospects and the involvement of the auto industry; an assessment of the problems facing the coal industry and its future; a discussion of the regulatory framework for the newly privatised companies; the importance of intra-regional energy links and the booming membership of Mercosur; the difficulties experienced by foreign investors doing business in Brazil; brief profiles of the key energy companies; profiles of key people influencing the privatisation process in Brazil. Brazilian energy is essential reading for those wishing to advise and assist Brazil in this period of change and development, as well as those who wish to invest or become key players in the Brazilian energy sector. (author)

  15. Radiological impact evaluation on the aquatic ecosystems surrounding IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Jacomino, Vanusa F.; Maduar, Marcelo F.; Bellintani, Sandra A.; Mazzilli, Barbara P.

    1996-01-01

    In order to control the discharge of radioactive materials into the aquatic system surrounding IPEN-CNEN/SP, an monitoring program has been carried out on a routine basis. All the liquid effluent generated by the IPEN facilities are released into the Pinheiros river at two different discharge points located 2 km apart. In the present paper the source term measured during the period 1985 to 1984 is presented, as well as the effective equivalent dose received by public individuals for each critical pathway. These results showed that the total activity released into the Pinheiros river is just a small fraction of the receiving capacity of the environment. The estimated annual doses during the period of study were always below 1/10 of the primary limit for the public individual as established by the International Commission of Radiological Protection, which is 1 mSv/year. (author)

  16. Incineration facility for combustible solid and liquid radioactive wastes in IPEN-CNEN - Sao Paulo

    International Nuclear Information System (INIS)

    Krutman, I.; Grosche Filho, C.E.; Chandra, U.; Suarez, A.A.

    1987-01-01

    A system for incinerating the combustible solid and liquid radioactive wastes was developed in order to achieve higher mass and volume reduction of the wastes generated at IPEN-CNEN/SP or received from other institutions. The radioactive wastes for incineration are: animal carcasses, ion-exchange resins, contaminated lubricant oils, cellulosic materials, plastics, etc. The optimization of the process was achieved by considering the following factors: selection of better construction and insulating material; dimensions; modular design of combustion chambers to increase burning capacity in future; applicability for various types of wastes; choise of gas cleaning system. The off-gas system utilizes dry treatment. The operation is designed to function with a negative pressure. (Author) [pt

  17. Implantation of radiodiagnostic reference radiations at the CDTN/CNEN for dosemeter calibration

    International Nuclear Information System (INIS)

    Baptista Neto, A.T.; Oliveira, P.M.C. de; Ferreira, F.C.B.

    2009-01-01

    A reliable dosimetry in diagnostic radiology is based on the traceability of calibrated and type-tested dosimeters in reference radiations that were established by the International Electrotechnical Commission (IEC). Metrology laboratories are expected to implement the reference radiations by reproducing the x-ray beam parameters within standard limits. This work shows the results of the implementation in the CDTN/CNEN-MG of the reference radiations for diagnostic radiology. The half value-layers and the homogeneity coefficients were determined for the primary (RQR), attenuated (RQA) and computerized tomography (RQT) x-ray beams. Results complied with the IEC limits which it means that the CDTN and the IEC reference radiations are similar and they can be used for calibration and type-testing of dosimeters to be used in diagnostic radiology. (author)

  18. Radiological impact from the transport of radiopharmaceuticals of the IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Rodrigues, Demerval Leonidas

    2009-01-01

    When a package is shipped, people who work, live or travel in the route used for transportation of radioactive materials are irradiated, as well as those who are inside vehicles that travel in the same or opposite directions. Therefore, the proposed work has as main objective to estimate the radiological impact of the transportation of radiopharmaceuticals of IPEN/CNEN-SP to some predefined destinations. The doses in individuals who are in the public streets and in vehicles that travel close to the means of transportation, along the route traveled by packages, during the transport of radiopharmaceuticals were estimated. The doses were also estimated for drivers, from both the operation of driving the vehicle, and the loading and unloading of packages, because these tasks are performed by the drivers. (author)

  19. External beam monitoring of the Cyclone 30 cyclotron of IPEN-CNEN-SP

    International Nuclear Information System (INIS)

    Matsuda, Hylton

    2002-01-01

    Due to the increasing demand for cyclotron radioisotopes and the high cost of equipment and materials involved in the process, it becomes evident the importance of external beam monitoring of the cyclotron. In this way, the beam of the Cyclone 30 cyclotron of IPEN-CNEN/S P was characterized throughout the evaluation of its current intensity, profile (position, focus and geometry), alignment and homogeneity, by measuring currents, temperatures and pressures of irradiation systems. For this purpose, techniques and conventional devices, thermocouples and pressure sensors associated to electronic of instrumentation, and technology and flexibility of micro controllers allowed observing the beam behavior during irradiations in real time. The ion beam energy was also evaluated using activation analysis technique of monitor reactions in nat Cu. The beam monitoring systems have been contributing to prevent material damages and they have already been used in routine irradiations, bringing important advantages in the process of beam optimization of the Cyclone 30. (author)

  20. Activities of the neutron activation analysis laboratory of the radiochemistry division of IPEN - CNEN/SP

    International Nuclear Information System (INIS)

    Vasconcellos, M.B.A.

    1988-10-01

    Neutron activation analysis (NAA) is one of the relevant applications of nuclear research reactors. Due to the high neutron fluxes available in these reactors, an excellent sensitivity of analysis is attained for many elements. NAA is one of the most sensitive, precise and accurate analytical methods for trace element determination. NAA has been one of the main activities of the Radiochemistry Division of IPEN, since the beginning of the operation of the nuclear reactor IEA-R1. Most of the effort was devoted to research work, aimed to improvements in the method as well as to its applications to several kinds of matrixes (geological, biological, metallic, environmental, forensic). Besides, analytical services were also offered, to the CNEN, to industries, universities, mining companies and research institutes. In the present paper, a review is made of the research work being developed presently at the Radiochesmitry Division of IPEN. A discussion is also made of the planned expansion of the analytical services offered [pt

  1. Brazilian demand for Iodine-125 seeds in cancer treatment after a decade of medical procedures

    Energy Technology Data Exchange (ETDEWEB)

    Costa, Osvaldo L. da; Souza, Daiane C.B. de; Feher, Anselmo; Moura, João A.; Souza, Carla D.; Oliveira, Henrique B. de; Peleiras Junior, Fernando S.; Zeituni, CArlos A.; Rostelaro, Maria E.C.M., E-mail: olcosta@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2017-07-01

    Iodine-125 and palladium-103 are radionuclides employed to made medical devices used in cancer treatment known as brachytherapy seeds. These radioactive sealed sources are applied in brain and ophthalmic cancer as a temporary implant to irradiate the tumor and in permanent implants to prostatic cancer. Brazilian Nuclear Energy Commission (CNEN) has the monopoly in Brazil of iodine-125 brachytherapy seeds distribution which is executed for Nuclear and Energy Research Institute (IPEN-CNEN/SP). Along a decade of use in Brazil more than 240 thousand seeds were implanted in patients or used to treat cancer tumors. In this article the Brazilian demand for iodine-125 brachytherapy seeds is analyzed. The demand behavior along a decade of using loose, strand, ophthalmic and brain brachytherapy seeds are shown. The annual quantity of seeds demanded by Brazil has dropped since 2012. The loose seeds which represented until 30% from total brachytherapy seeds used in Brazil decreased to less than 3%. The brain brachytherapy seeds had low demand along the decade and presented zero demand in several years. Concurrent treatment techniques are listed and main trends are discussed. The influence of Brazilian economic crisis and the demand behavior of the main hospitals and clinics that use Iodine-125 brachytherapy are shown. (author)

  2. Brazilian demand for Iodine-125 seeds in cancer treatment after a decade of medical procedures

    International Nuclear Information System (INIS)

    Costa, Osvaldo L. da; Souza, Daiane C.B. de; Feher, Anselmo; Moura, João A.; Souza, Carla D.; Oliveira, Henrique B. de; Peleiras Junior, Fernando S.; Zeituni, CArlos A.; Rostelaro, Maria E.C.M.

    2017-01-01

    Iodine-125 and palladium-103 are radionuclides employed to made medical devices used in cancer treatment known as brachytherapy seeds. These radioactive sealed sources are applied in brain and ophthalmic cancer as a temporary implant to irradiate the tumor and in permanent implants to prostatic cancer. Brazilian Nuclear Energy Commission (CNEN) has the monopoly in Brazil of iodine-125 brachytherapy seeds distribution which is executed for Nuclear and Energy Research Institute (IPEN-CNEN/SP). Along a decade of use in Brazil more than 240 thousand seeds were implanted in patients or used to treat cancer tumors. In this article the Brazilian demand for iodine-125 brachytherapy seeds is analyzed. The demand behavior along a decade of using loose, strand, ophthalmic and brain brachytherapy seeds are shown. The annual quantity of seeds demanded by Brazil has dropped since 2012. The loose seeds which represented until 30% from total brachytherapy seeds used in Brazil decreased to less than 3%. The brain brachytherapy seeds had low demand along the decade and presented zero demand in several years. Concurrent treatment techniques are listed and main trends are discussed. The influence of Brazilian economic crisis and the demand behavior of the main hospitals and clinics that use Iodine-125 brachytherapy are shown. (author)

  3. performance-based approach to design and evaluation of nuclear security systems for Brazilian nuclear facilities

    Energy Technology Data Exchange (ETDEWEB)

    Tavares, Renato L. A.; Filho, Josélio S. M., E-mail: renato.tavares@cnen.gov.br, E-mail: joselio@cnen.gov.br [Comissão Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Diretoria de Radioproteção e Segurança Nuclear. Divisão de Normas e Segurança Física; Fontes, Gladson S.; Fiel, J.C.B., E-mail: gsfontes@hotmail.com, E-mail: fiel@ime.eb.br [Instituto Militar de Engenharia (SE-7/IME), Rio de Janeiro, RJ (Brazil). Seção de Engenharia Nuclear

    2017-07-01

    This study presents an application of a performance-based approach to definition of requirements, design and evaluation of physical protection systems for nuclear facilities. Such approach considers a probabilistic analysis of the threat, equipment, systems and response forces used to prevent, dissuade and detain malicious acts against the integrity of facilities and the nuclear materials inside them. Nowadays, in the context of Brazilian nuclear facilities licensing, a mostly prescriptive approach is adopted, which despite having advantages such as simplified inspections and homogeneous regulatory requisites amid different fuel cycle facility types, does not consider evolution, dynamism and capacities of external or internal threats to facilities and to Brazilian Nuclear Program itself, neither provides metrics to evaluate system performance facing such threats. In order to preserve actual plans and systems confidentiality, a facility hypothetical model is created, including a research reactor and a waste storage facility. It is expected that the methodology and results obtained in this study serve in the future as a basis to Brazilian nuclear operators, in elaboration process of their Physical Protection Plans, which must comply with future regulation CNEN-NN 2.01, a revision of CNEN-NE 2.01, once that regulation will include performance requisites. (author)

  4. performance-based approach to design and evaluation of nuclear security systems for Brazilian nuclear facilities

    International Nuclear Information System (INIS)

    Tavares, Renato L. A.; Filho, Josélio S. M.; Fontes, Gladson S.; Fiel, J.C.B.

    2017-01-01

    This study presents an application of a performance-based approach to definition of requirements, design and evaluation of physical protection systems for nuclear facilities. Such approach considers a probabilistic analysis of the threat, equipment, systems and response forces used to prevent, dissuade and detain malicious acts against the integrity of facilities and the nuclear materials inside them. Nowadays, in the context of Brazilian nuclear facilities licensing, a mostly prescriptive approach is adopted, which despite having advantages such as simplified inspections and homogeneous regulatory requisites amid different fuel cycle facility types, does not consider evolution, dynamism and capacities of external or internal threats to facilities and to Brazilian Nuclear Program itself, neither provides metrics to evaluate system performance facing such threats. In order to preserve actual plans and systems confidentiality, a facility hypothetical model is created, including a research reactor and a waste storage facility. It is expected that the methodology and results obtained in this study serve in the future as a basis to Brazilian nuclear operators, in elaboration process of their Physical Protection Plans, which must comply with future regulation CNEN-NN 2.01, a revision of CNEN-NE 2.01, once that regulation will include performance requisites. (author)

  5. Introducing the Brazilian program of technical support to the International Atomic Energy Agency - Department of Safeguards

    International Nuclear Information System (INIS)

    Vinhas, Laercio A.; Palhares, Lilia C.; Dias, Fabio C.; Khlebnikov, Nikolai

    2009-01-01

    As an active Member State of the International Atomic Energy Agency (IAEA), Brazil has applied substantial resources in order to maintain the best possible cooperation with the Agency, aiming at a continuous improvement of the effectiveness and efficiency of the safeguards system. Over the last decades a number of projects, involving the participation of high-level Brazilian professionals in the nuclear area, have already been jointly completed. To continue providing this voluntary support to the IAEA Department of Safeguards for research, development and implementation, in 2006 Brazil decided to accept the IAEA's invitation to participate in the IAEA Member States Support Programmes initiative, which currently includes 21 Member States. The Research and Development (R and D) Programme for Nuclear Verification is the IAEA reference in this regard, establishing the high priority needs and describing each recognized departmental project. The Programme is issued every two years. The 'Brazilian Support Programme (BRZ SP)' was established on the basis of a set of administrative procedures titled 'Cooperation Arrangements and Guidelines', agreed between the Brazilian National Nuclear Energy Commission (CNEN) and the IAEA - Department of Safeguards. The scope of the BRZ SP includes: the participation in field tests and the evaluation of state-of-the-art technologies as requested by the IAEA for its safeguards applications; the training of safeguards personnel involved with safeguards implementation at both facility and State levels; laboratorial support in the area of destructive and nondestructive analysis of nuclear materials; the analysis of safeguards issues; information acquisition, analysis and evaluation; and the provision of human resources, such as experts and consultants to work directly with the IAEA Secretariat. The activities agreed under the BRZ SP are not restricted to CNEN staff members. Professionals from other Brazilian organizations may also be involved

  6. Implementation of 'Davies and Gray/NBL Method' for potentiometric titration of uranium in the Safeguards Laboratory of CNEN by the use of a DL-67 mettler titrator

    International Nuclear Information System (INIS)

    Araujo, Radier Mario Silveira de; Barros, Pedro Dionisio de

    2005-01-01

    To meet the requirements of the Brazilian State System of Accounting for and Control of Nuclear Materials - SSAC, the Safeguards Laboratory of CNEN - LASAL has been applying the 'Davies and Gray/NBL' method for potentiometric determination of total uranium concentration in uranium samples taken during safeguards inspections at nuclear facilities since 1984, using a Radiometer ETS 822 titrator. In order to improve the analytical capability and the procedures related to the titration methodology, the same method was also implemented by using a METTLER DL - 67 titrator. This equipment is microprocessor - controlled and can be connected to additional devices such as printers, analytical balances, etc. It also provides accurate and reproducible results for end-point titrations, providing analytical performance according to the current international safeguards requirements. The implementation of the method in such equipment included the addition of analytical data as well as the improvement of the equipment parameters for uranium determination. Parameters like predispensing volume; titrant data and end-point value were studied. Some uranium samples (solids and solutions) were used during the initial tests with the titrator. A solution of pure uranyl nitrate was used as reference sample for this paper. From this, aliquots were analyzed in both Radiometer ETS-822 and METTLER DL-67. Results obtained from each equipment were compared with the reference value of the sample. The comparison showed that results from METTLER DL-67 meets the precision and accuracy requirements for this kind of analysis and led to the conclusion that the performance of this titrator is adequate for the determination of total uranium content in samples of nuclear materials for safeguards purposes. (author)

  7. Decommissioning of a nuclear facility: the Brazilian case

    International Nuclear Information System (INIS)

    Menezes, Regina M.; Deppe, Alzira L.; Nunes, Marcos E.C.; Cardoso, Eliezer M.; Nouailhetas, Y.; Mouco, Charles; Ferreira, Paulo R.; Matta, Luiz E.da

    1996-01-01

    The first decommissioning process of a nuclear facility in Brazil, has being taken place in Usina de Santo Amaro (USAM), located in Sao Paulo whose physical and chemical milling activities of the monazitic sands were interrupted in June 1992. Nowadays, materials and equipment generated from Minerals Physical Treatment and Rare Earths Separation Sectors, classified as low level radiation areas, are in final phase of dismantling, monitoring and release to the internal backyard of the facility or segregation in controlled areas. This decommissioning phase is considered as pilot for the verification of procedures, follow up of pieces and application of suitable radioprotection measures for the future dismantling of the Chemical Treatment of Monazite Sector, which will involve higher risks regarding radioprotection and safety aspects. The criteria of discharge of areas and equipment established by CNEN are conservative enough to assure that the contamination is not released to the environment. CNEN's activities conducted at the surveillance of works involving the dismantling and decontamination of materials and equipment verifying that they are in accordance with the requirements established by the Brazilian Commission of Nuclear Energy. (author)

  8. Improvement at the system to collect radioactive waste at IPEN-CNEN/SP-TPI Radioisotopes Division; Melhorias no sistema de coleta de rejeitos radioativos da Divisao de Producao de Radioisotopos do IPEN-CNEN/SP

    Energy Technology Data Exchange (ETDEWEB)

    Nieto, Wagner; Sanches, Matias Puga [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    1997-12-31

    This paper describes a new system used at IPEN-CNEN/SP-TPI Radioisotopes Division to collect radioactive waste. This collect system is a result from the conception and the implementation of technicians from the TPI and Mechanical Workshop Division at IPEN-CNEN/SP. A comparison between the old disposal system and the new one is presented by showing the projects characteristics and the main difficulties found in the design and implementation of the last collect system. An analysis is presented of the improvements of the new disposal collect system under several aspects, among them, under the radioprotection point of view. Furthermore, the use of this new system for the handling of radioactive waste at the TPI-Radioisotopes Division is commented. (author) 3 refs., 9 figs.; e-mail: msanches at net.ipen.br

  9. Development of indigenous technology at CNEN in the fields of nuclear medicine, nuclear detectors, instrumentation, radioisotope production and application of nuclear techniques

    International Nuclear Information System (INIS)

    Mafra, O.

    1990-01-01

    The main objectives of the program developed at CNEN in the field of nuclear medicine, nuclear detectors, instrumentation, radioisotope production and application of nuclear technique are described. (E.G.) [pt

  10. Ion chambers compliance results of Brazilian radiation therapy facilities.

    Science.gov (United States)

    Joana, G; Salata, C; Leal, P; Vasconcelos, R; Couto, N do; Teixeira, F C; Soares, A D; Santini, E S; Gonçalves, M

    2018-03-01

    The Brazilian Nuclear Energy Commission (cnen) has been making a constant effort to keep up to date with international standards and national needs to strengthen the status of radiological protection of the country. The guidelines related to radiation therapy facilities have been revised in the last five years in order to take into consideration the most relevant aspects of the growing technology as well as to mitigate the accidents or incidents observed in practice. Hence, clinical dosimeters have gained special importance in this matter. In the present work, we discuss the effectiveness of regulation and inspections to the enforcement of instrument calibration accuracy for the improvement of patient dosimetry and quality control. As a result, we observed that the number of calibrated instruments, mainly well chambers, is increasing each year. The same behavior is observed for instruments employed in technologically advanced radiation treatments such as intensity modulated radiotherapy, volumetric therapy and stereotatic radiosurgery. We ascribe this behavior to the new regulation.

  11. Brazilian Irradiation Project: CAFE-MOD1 validation experimental program

    International Nuclear Information System (INIS)

    Mattos, Joao Roberto Loureiro de; Costa, Antonio Carlos L. da; Esteves, Fernando Avelar; Dias, Marcio Soares

    1999-01-01

    The Brazilian Irradiation Project whose purpose is to provide Brazil with a minimal structure to qualify the design, fabrication and quality procedures of nuclear fuels, consists of three main facilities: IEA-R1 reactor of IPEN-CNEN/SP, CAFE-MOD1 irradiation device and a unit of hot cells. The CAFE-MOD1 is based on concepts successfully used for more than 20 years in the main nuclear institutes around the world. Despite these concepts are already proved it should be adapted to each reactor condition. For this purpose, there is an ongoing experimental program aiming at the certification of the criteria and operational limits of the CAFE-MOD1 in order to get the allowance for its installation at the IEA-R1 reactor. (author)

  12. Utilization of plastic detector for pool water radioactivity control of IEA-R1 reactor. Examination of fuel element irradiation behaviour fabricated at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Berretta, J.R.; Mesquita, C.H. de; Madi Filho, T.

    1989-01-01

    For the examination of fuel element irradiation behavior that were fabricated at IPEN/CNEN/SP Metalurgical Departament, it was provided a detection system for pool water radioactivity measurements. This system uses a plastic scintillator detector produced at IPEN/CNEN-SP Health Physics Department, with dimensions and shape apropriated for such work. The detection system shows a sensibility of 4.125x10 -2 dps/cm 3 and 20% of efficiency for 131 I radiations. (author) [pt

  13. Comparative study between RDC number 20 from ANVISA of 2006 and standard CNEN NN 6.10 of 2014 on radiotherapy services

    International Nuclear Information System (INIS)

    Silva, D.R.; Geraldo, J.M.; Batista, A.S.M.

    2017-01-01

    Introduction: The internal procedures of a Radiotherapy Service are performed based on resolutions and standards of the control bodies, both health and radiation use. In the health area, the control is carried out by the National Health Surveillance Agency (ANVISA), through the Resolution of the Collegiate Board of Directors (RDC) number 20 of 2006. On the other hand, because it is a service that uses high energy ionizing radiation, it must comply with the rules of the National Nuclear Energy Commission (CNEN) specifically CNEN NN 6.10 of 2014. It is therefore necessary to integrate the recommendations contained in the ANVISA and CNEN determinations, requiring interpretation and transposition effort for the internal regime of procedures of each institution. Methods: The objective of this study was to compare, discuss and interpret RDC number 20 and CNEN NN 6.10 in relation to the understanding of how the two contribute to the applicability of radioprotection and radiation therapy rules. Results: Tables are presented in constant or not in the two documents and evaluated the contributions and focus of each of them. Conclusion: It is noted that each text is reconciled with the interests of each legislator and supervisory body, that is, CNEN and ANVISA. In the control of the use of radioactive sources and emitting equipment, in the case of CNEN, and in the control of agents harmful to health, ANVISA

  14. Design and development of a neutron tomography facility at the IPEN-CNEN/SP, Brazil

    International Nuclear Information System (INIS)

    Schoueri, Roberto Mauro

    2016-01-01

    In the work reported in this dissertation, a facility for neutron tomography was developed and installed at the irradiation channel 14 of the IEA-R1 nuclear research reactor of IPEN-CNEN/SP. Several selected objects were inspected, and the obtained images demonstrate the main characteristic of the present technique that is its capability to visualize hydrogenous rich substances. In such facility, a tomography can be obtained in 400 s with a spatial resolution of 205 μm, and the obtained images have sufficient quality to allow qualitative and quantitative analysis. These characteristics are very similar to the ones of the top facilities around the world, and the quality of the provided images are sufficient to allow qualitative and quantitative analysis of the inspected object. The implementation of the neutron tomography technique opens up the possibility of new research as it provides a new tool for inspection of objects, which provides a view of its internal structure, which is not always possible for two-dimensional imaging methods. (author)

  15. Questionnaire established for the Brazilian inventory of low and intermediate level radioactive waste

    International Nuclear Information System (INIS)

    Marumo, Julio T.; Silva, Fabio; Pinto, Antonio Juscelino; Taveira, Gerson L.S.

    2015-01-01

    The Nuclear Technology Development Center (CDTN), an institute of Brazilian National Commission of Nuclear Energy (CNEN), is responsible for the technical coordination of the Brazilian Repository Project (RBMN), for Low and Intermediate Level Radioactive Wastes. To establish the inventory of the low and intermediate radioactive level waste to be disposed in the national Repository, a questionnaire was elaborated to be filled on line, via WEB, exclusively to registered users, which involved CNEN's institutes, ELETRONUCLEAR, INB and CTMSP. Based on all standardized information received from questionnaires, an easy use database to inventory the radioactive waste was created in Microsoft Access® that supported the calculation of the volume of radioactive waste treated and non-treated, stored and generated presently in Brazil. In addition, from this database it will be possible to establish some disposal procedures and the necessary area of construction. The objective of this work is to present this database and some general information about the radwastes in Brazil. (author)

  16. Questionnaire established for the Brazilian inventory of low and intermediate level radioactive waste

    Energy Technology Data Exchange (ETDEWEB)

    Marumo, Julio T., E-mail: jtmarumo@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Silva, Fabio; Pinto, Antonio Juscelino, E-mail: silvaf@cdtn.br, E-mail: ajp@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil); Taveira, Gerson L.S., E-mail: gersonluizst@gmail.com [Centro Federal de Educacao Tecnologica de Minas Gerais (CEFET-MG), Belo Horizonte, MG (Brazil). Engenharia de Producao Civil

    2015-07-01

    The Nuclear Technology Development Center (CDTN), an institute of Brazilian National Commission of Nuclear Energy (CNEN), is responsible for the technical coordination of the Brazilian Repository Project (RBMN), for Low and Intermediate Level Radioactive Wastes. To establish the inventory of the low and intermediate radioactive level waste to be disposed in the national Repository, a questionnaire was elaborated to be filled on line, via WEB, exclusively to registered users, which involved CNEN's institutes, ELETRONUCLEAR, INB and CTMSP. Based on all standardized information received from questionnaires, an easy use database to inventory the radioactive waste was created in Microsoft Access® that supported the calculation of the volume of radioactive waste treated and non-treated, stored and generated presently in Brazil. In addition, from this database it will be possible to establish some disposal procedures and the necessary area of construction. The objective of this work is to present this database and some general information about the radwastes in Brazil. (author)

  17. Brazilian nuclear power plants decommissioning plan for a multiple reactor site

    Energy Technology Data Exchange (ETDEWEB)

    Monteiro, Deiglys B.; Moreira, Joao M.L.; Maiorino, Jose R., E-mail: deiglys.monteiro@ufabc.edu.br, E-mail: joao.moreira@ufabc.edu.br, E-mail: joserubens.maiorino@ufabc.edu.br [Universidade Federal do ABC (CECS/UFABC), Santo Andre, SP (Brazil). Centro de Engenharia, Modelagem e Ciencias Aplicadas. Programa de Pos-Graduacao em Energia e Engenharia da Energia

    2015-07-01

    Actually, Brazil has two operating Nuclear Power Plants and a third one under construction, all at Central Nuclear Almirante Alvaro Alberto - CNAAA. To comply with regulatory aspects the power plants operator, Eletronuclear, must present to Brazilian Nuclear Regulatory Agency, CNEN, a decommissioning plan. Brazilian experience with decommissioning is limited because none of any nuclear reactor at the country was decommissioned. In literature, decommissioning process is well described despite few nuclear power reactors have been decommissioned around the world. Some different approach is desirable for multiple reactors sites, case of CNAAA site. During the decommissioning, a great amount of wastes will be produced and have to be properly managed. Particularly, the construction of Auxiliary Services on the site could be a good choice due to the possibility of reducing costs. The present work intends to present to the Eletronuclear some aspects of the decommissioning concept and decommissioning management, storage and disposal de wastes, based on the available literature, regulatory standards of CNEN and international experience as well as to suggest some solutions to be implemented at CNAAA site before starts the decommissioning project in order to maximize the benefits. (author)

  18. Brazilian nuclear power plants decommissioning plan for a multiple reactor site

    International Nuclear Information System (INIS)

    Monteiro, Deiglys B.; Moreira, Joao M.L.; Maiorino, Jose R.

    2015-01-01

    Actually, Brazil has two operating Nuclear Power Plants and a third one under construction, all at Central Nuclear Almirante Alvaro Alberto - CNAAA. To comply with regulatory aspects the power plants operator, Eletronuclear, must present to Brazilian Nuclear Regulatory Agency, CNEN, a decommissioning plan. Brazilian experience with decommissioning is limited because none of any nuclear reactor at the country was decommissioned. In literature, decommissioning process is well described despite few nuclear power reactors have been decommissioned around the world. Some different approach is desirable for multiple reactors sites, case of CNAAA site. During the decommissioning, a great amount of wastes will be produced and have to be properly managed. Particularly, the construction of Auxiliary Services on the site could be a good choice due to the possibility of reducing costs. The present work intends to present to the Eletronuclear some aspects of the decommissioning concept and decommissioning management, storage and disposal de wastes, based on the available literature, regulatory standards of CNEN and international experience as well as to suggest some solutions to be implemented at CNAAA site before starts the decommissioning project in order to maximize the benefits. (author)

  19. Adjustment of the Brazilian radioprotection standards to the safety principles of the International Atomic Energy Agency

    International Nuclear Information System (INIS)

    Pereira, Wagner de S.; Py Junior, Delcy de A.

    2013-01-01

    The International Atomic Energy Agency (IAEA) has a recommendation with 10 basic safety principles (Fundamental Safety Principles Safety Fundamentals series, number SF-1), which are: 1) Responsibility for safety; 2) Role for government; 3) Leadership and management for safety; 4) Justification of facilities and activities; 5) Optimization of protection; 6) Limitation of risk to individuals; 7) Protection of present and futures generations; 8) Prevention of accidents; 9) Emergency preparedness and response and 10) Protection actions to reduce existing or unregulated radiations risk. The aim of this study is to verify that the Brazilian standards of radiation protection meet the principles described above and how well suited to them. The analysis of the national radiation protection regulatory system, developed and deployed by the National Nuclear Energy Commission (CNEN), showed that out of the ten items, two are covered partially, the number 2 and 10. The others are fully met. The item 2 the fact that the regulatory body (CNEN) be stock controller of a large company in the sector put in check its independence as a regulatory body. In item 10 the Brazilian standard of radiation protection does not provide explicit resolution of environmental liabilities

  20. Modernization of the physical protection system of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Suzuki, F.F.

    2001-01-01

    Full text: The plans of physical protection of nuclear facilities must be reviewed and updated every two years. A general study of the physical protection system was carried out in order to review and to update the plan of physical protection of IPEN-CNEN/SP. Important alterations accomplished at the institute were considered in the study, as the installation of a cyclotron 30 MeV and the new operation conditions for the nuclear research reactor IEA-RI, that include the increase of its operation power from two to five megawatts and the establishment of the continuous operation by 72 hours weekly. The area of IPEN-CNEN/SP is 478,000 m 2 (101,850 m 2 built area of 107 constructions). The group responsible for the study investigated the performance of the physical protection system and detected some points that could be reinforced at inner and protected areas. The initial step was the evaluation, in loco, of the constructions and physical barriers of inner and protected areas. The performance of the security force personnel on the conventional procedures, as access control to the facilities, control of material flow, area monitoring and patrol, as well as its response for special situation procedures in the case of a physical protection emergency, were evaluated too. The study also focused the communication means used by the security force, as the extension phone lines that are located in each entrance area and in the huts, and the portable VHP radios that are used by the guards. In order to elaborate a programme of modernization of the physical protection system, using the results of the study as basis, an internal committee composed of specialists in physical protection, nuclear safety, operation of reactors and engineering areas was created. The programme elaborated by the committee strengthens the physical protection system by applying the defense in depth concept. At the same time, it attempts to propitiate a balanced protection to minimize the consequences for

  1. [11C] Methionine as PET radiopharmaceutical produced at CDTN/CNEN

    International Nuclear Information System (INIS)

    Silveira, Marina B.; Ferreira, Soraya Z.; Carvalho, Tiago F.; Silva, Juliana B. da

    2013-01-01

    Carbon-11 ( 11 C) is an attractive radionuclide used in positron emission tomography (PET) since carbon is a ubiquitous element in biomolecules. Positron emitter-labeled amino acids are being widely used as indicators of tumor activity due to enhanced expression of amino acid transporter systems in cancer cells. L-[Methyl-( 11 C)] Methionine or [ 11 C]Methionine is being used in neuro-oncology and, unlike 2-[ 18 F]fluoro-2-deoxy-D-glucose ( 18 FDG), gives more contrast images and improves brain tumor diagnosis. The aim of this work was to develop the synthesis and quality control of [ 11 C]Methionine at the Radiopharmaceuticals Research and Production Facility (UPPR) of CDTN/CNEN. The synthesis of [ 11 C] Methionine was performed using two Sep-Pak tC18 plus cartridges one as solid support for the 11 C-methylation of the precursor L-homocysteine thiolactone hydrochloride and another for purification. The pH, radionuclidic identity and purity, residual solvents, radiochemical and chemical purity of the final product were evaluated as described on the European Pharmacopoeia 7.0 monograph. Total synthesis time was 18 minutes, the radiochemical yield was approximately 15% (non-decay corrected) and radiochemical purity was greater than 95%. [ 11 C]Methionine was successfully synthesized at CDTN using the described procedures and complied with quality requirements. Due to the rapid growth of oncologic PET scans in last decade, 11 C labelling holds great promises in the next few years with the application of other tracers beyond 18 FDG. This pioneering work of UPPR/CDTN represents a response to the demands of a growing nuclear medicine in the country focused on achieving better diagnostic imaging. (author)

  2. [11C] Methionine as PET radiopharmaceutical produced at CDTN/CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Silveira, Marina B.; Ferreira, Soraya Z.; Carvalho, Tiago F.; Silva, Juliana B. da, E-mail: mbs@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil). Unidade de Pesquisa e Producao de Radiofarmacos

    2013-07-01

    Carbon-11 ({sup 11}C) is an attractive radionuclide used in positron emission tomography (PET) since carbon is a ubiquitous element in biomolecules. Positron emitter-labeled amino acids are being widely used as indicators of tumor activity due to enhanced expression of amino acid transporter systems in cancer cells. L-[Methyl-({sup 11}C)] Methionine or [{sup 11}C]Methionine is being used in neuro-oncology and, unlike 2-[{sup 18}F]fluoro-2-deoxy-D-glucose ({sup 18}FDG), gives more contrast images and improves brain tumor diagnosis. The aim of this work was to develop the synthesis and quality control of [{sup 11}C]Methionine at the Radiopharmaceuticals Research and Production Facility (UPPR) of CDTN/CNEN. The synthesis of [{sup 11}C] Methionine was performed using two Sep-Pak tC18 plus cartridges one as solid support for the {sup 11}C-methylation of the precursor L-homocysteine thiolactone hydrochloride and another for purification. The pH, radionuclidic identity and purity, residual solvents, radiochemical and chemical purity of the final product were evaluated as described on the European Pharmacopoeia 7.0 monograph. Total synthesis time was 18 minutes, the radiochemical yield was approximately 15% (non-decay corrected) and radiochemical purity was greater than 95%. [{sup 11}C]Methionine was successfully synthesized at CDTN using the described procedures and complied with quality requirements. Due to the rapid growth of oncologic PET scans in last decade, {sup 11}C labelling holds great promises in the next few years with the application of other tracers beyond {sup 18}FDG. This pioneering work of UPPR/CDTN represents a response to the demands of a growing nuclear medicine in the country focused on achieving better diagnostic imaging. (author)

  3. Whole-body measurements of workers occupationally exposed to radionuclides at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Cardoso, Joaquim Carlos S.; Xavier, Marcos

    2015-01-01

    The intake of radioactive material by workers can occur in the radiopharmaceuticals production, during the handling of these in the medical fields (nuclear medicine) and in biological and research laboratories. The workers who work in areas where exposures are significant are routinely monitored to demonstrate that the workers are receiving adequate protection from internal contamination. Direct measurements of whole-body and thyroid contents provide an estimate of the activity of these radionuclides in the potentially exposed workers. The whole-body measurements of the workers, trainees and visitors are routinely performed by the In Vivo Monitoring Laboratory (LMIV) of the Energy and Nuclear Research Institute (IPEN/CNEN-SP). The frequency of measurements is defined by the Radioprotection Service (SRP) and the Dose Calculation Group of IPEN. For this purpose LMIV has two counters, whole body. NaITl (8 x 4”), and thyroid one, NaITl (3 x 3”). The system was calibrated in energy and efficiency, with calibration sources of Eu-152, Am-241 and Co-60 with gamma emissions between 59.54 and 1408.08 keV, positioned within Alderson Research Labs. anthropomorphic phantom. The background measures were obtained of worker's spectrum that was not exposed occupationally yet. The concepts adopted in the HPS N13.30 Standard and proposed in ISO documents for standardization were used for activity measurements. During the period January 2010 to December 2014, approximately 4500 measurements had been carried in workers who develop tasks related to the production and research. The activities of the radionuclides and the workers' tasks relationship had been evaluated. (author)

  4. Whole-body measurements of workers occupationally exposed to radionuclides at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Cardoso, Joaquim Carlos S.; Xavier, Marcos

    2013-01-01

    The intake of radioactive material by workers can occur in the radiopharmaceuticals production, during the handling of these in the medical fields (nuclear medicine) and in biological and research laboratories. The workers who work in areas where exposures are significant are routinely monitored to demonstrate that the workers are receiving adequate protection from internal contamination. Direct measurements of whole-body and thyroid contents provide an estimate of the activity of these radionuclides in the potentially exposed workers. The whole-body measurements of the workers, trainees and visitors are routinely performed by the In Vivo Monitoring Laboratory (LMIV) of the Energy and Nuclear Research Institute (IPEN/CNEN-SP). The frequency of measurements is defined by the Radioprotection Service (SRP) and the Dose Calculation Group of IPEN. For this purpose LMIV has two counters, whole body. NaIT1 (8x4″), and thyroid one, NaIT1 (3x3″). The system was calibrated in energy and efficiency, with calibration sources of Eu-152, Am-241 and Co-60 with gamma emissions between 59.54 and 1408.08 keV, positioned within Alderson Research Labs. anthropomorphic phantom. The background measures were obtained of worker's spectrum that wasn't exposed occupationally yet. The concepts adopted in the HPS N13.30 Standard and proposed in ISO documents for standardization were used for activity measurements. During the period January 2007 to December 2012, approximately 6700 measurements had been carried in workers who develop tasks related to the production and research. The activities of the radionuclides and the workers' tasks relationship had been evaluated. (author)

  5. Activity report 1991 from IPEN - Brazilian Institute of Energy and Nuclear Researches, CNEN/SP; Relatorio de Atividades 1991 IPEN - Institutos de Pesquisas Energeticas e Nucleares, CNEN/SP

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-07-01

    This report presents the main events achieved at IPEN in 1991: actions related to international cooperation, developed administrative activities as well as the matched results in the areas of Fuel Cycle, Nuclear Reactors, Application of Nuclear Techniques, Radiation Protection and Logistic Support.

  6. Conditions of the potential for commercialization of the patent: the implementation of a technology public offering system technology at CNEN; Condicionantes do potencial de exploracao comercial da patente: a implantacao de um sistema de oferta publica de tecnologia na CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Archila, Daniela Lima Cerqueira

    2015-07-01

    This dissertation identifies the main factors which represent the conditions for the potential commercialization of patents aiming at the implementation of a system for technology public offering at CNEN as a strategy for creating licensing opportunities to the industrial sector. The method applied refers to an exploratory case study of a patented technology selected from a sample of CNEN's patent portfolio in the biopharmaceutical sector. The case study comprehends a field research of interviews conducted with two specialists in technology and innovation management, one researcher from CNEN and a biopharmaceutical company. The results show that among the nineteen main factors - related to technology, market, business and Science and Technology Organization (STO) - the market dynamics, the potential applications of the technology and an abstract of its main benefits compared to existing technologies are the major relevant information for each technology to be included in the public offering system. Other results indicate that the evaluation of such factors may be conducted by competent professionals to bring less uncertainty and risk to the early-stage of the innovation process, as well as enhance the potential interest of a company in the technology. On the other hand, the latter requires innovation capabilities to move the technology forward – additional R&D, scale-up, manufacturing and marketing - whilst the STO needs a entrepreneurial culture that mitigates its obstacles, creates more positive solutions for its routines and processes and gives sustainability to its Technology Transfer Office (TTO) through valuing its personnel in the long term. Finally, emphasis on technological partnerships with companies can be a motivating feature for directing the STO's patent strategy to the creation of proprietary technological platforms that reflect problems experienced by the commercial environment, as well as the development of this strategic patent

  7. Historical and perspectives of thorium compounds production and purification at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Lainetti, Paulo E.O.; Abrao, A.; Freitas, Antonio A.; Carvalho, Fatima M.S. de; Bergamaschi, Vanderlei S.; Cunha, Edgar F.; Ayoub, Jamil M.S.; Mindrisz, Ana C.

    2000-01-01

    The production and purification of some thorium compounds has been performed in the IPEN in the last 15 years. Some raw materials have been employed in this production, obtained from the monazite exploitation in industrial scale that it was performed in Sao paulo during the period 1948 until 1994. More than 160 t of high purity thorium nitrate were produced, purified by the solvent extraction process. The thorium nitrate has been supplied for the Brazilian portable gaslight industry to the production of Welsbach Mantle. Nowadays, a new facility is being designed and built. The main concern is the recovering of the production capacity, lost after some years of operation without suitable maintenance. This activity has an important strategic role, considering the huge Brazilian thorium resources and the renewed interest in thorium fuel cycle. This paper describes a brief historical background of thorium activities in the IPEN as well as their perspectives. (author)

  8. Proposal for intake model for workers at IPEN-CNEN/SP who handle {sup 131} I; Proposta de um modelo de incorporacao para trabalhadores ocupacionais do IPEN-CNEN/SP que manuseiam {sup 131} I

    Energy Technology Data Exchange (ETDEWEB)

    Todo, A.S.; Potiens Junior, A.J.; Gaburo, J.C.; Sanches, M.P.; Oliveira, E.M. [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    1997-12-31

    The intake model for the two groups of workers at IPEN-CNEN/SP is presented. They handle iodine compounds during the processing of irradiated targets and at labeling of radiopharmaceutical compounds. The intake model for the workers are proposed from the knowledge of the activities carried out in the plant and the internal monitoring program of the workers. In this study, the intake is considered to be taken uniformly during the days of major activities carried out by the workers. In practice, the application of this model has be shown suitable, for the studied groups 5 refs., 2 figs., 1 tab.; e-mail: astodo at net.ipen.br

  9. Conditions of the potential for commercialization of the patent: the implementation of a technology public offering system technology at CNEN

    International Nuclear Information System (INIS)

    Archila, Daniela Lima Cerqueira

    2015-01-01

    This dissertation identifies the main factors which represent the conditions for the potential commercialization of patents aiming at the implementation of a system for technology public offering at CNEN as a strategy for creating licensing opportunities to the industrial sector. The method applied refers to an exploratory case study of a patented technology selected from a sample of CNEN's patent portfolio in the biopharmaceutical sector. The case study comprehends a field research of interviews conducted with two specialists in technology and innovation management, one researcher from CNEN and a biopharmaceutical company. The results show that among the nineteen main factors - related to technology, market, business and Science and Technology Organization (STO) - the market dynamics, the potential applications of the technology and an abstract of its main benefits compared to existing technologies are the major relevant information for each technology to be included in the public offering system. Other results indicate that the evaluation of such factors may be conducted by competent professionals to bring less uncertainty and risk to the early-stage of the innovation process, as well as enhance the potential interest of a company in the technology. On the other hand, the latter requires innovation capabilities to move the technology forward – additional R&D, scale-up, manufacturing and marketing - whilst the STO needs a entrepreneurial culture that mitigates its obstacles, creates more positive solutions for its routines and processes and gives sustainability to its Technology Transfer Office (TTO) through valuing its personnel in the long term. Finally, emphasis on technological partnerships with companies can be a motivating feature for directing the STO's patent strategy to the creation of proprietary technological platforms that reflect problems experienced by the commercial environment, as well as the development of this strategic patent

  10. Decommissioning of uranium pilot plants at IPEN-CNEN/SP: Facilities dismantling, decontamination and reuse as new laboratories for strategic programs

    International Nuclear Information System (INIS)

    Oliveira Lainetti, P.; Freitas, A.; Cotrim, M.; Pires, M.

    2014-01-01

    Radical changes of the Brazilian nuclear policy, in the beginning of 1990s, determined the interruption of most nuclear fuel cycle activities and the facilities shutdown at IPEN. Those facilities had already played their roles of technological development and personnel's training, with transfer of the technology for institutions entrusted of the ''scale up'' of the units. Most of the pilot plants interrupted the activities more than ten years ago, due to the lack of resources for the continuity of the research. The appropriate facilities maintenance had been also harmed by the lack of resources, with evident signs of deterioration in structures and equipment. The existence of those facilities also implicated in the need of constant surveillance, representing additional obligations, costs and problems. It should be emphasized that one of the most concerning aspects, with relationship to the future of the facilities and the postponement of the dismantling, was the loss of the experience accumulated by the personnel that set up and operated the referred units. Besides the mentioned aspects, other reasons to promote the dismantling of the IPEN´s Nuclear Fuel Cycle Pilot Plants elapsed mainly from the need of physical space for new activities, since the R in the nuclear fuel cycle area were interrupted. In the last decade IPEN has changed its “nuclear profile” to a “comprehensive and multidisciplinary profile”. During this period, IPEN has been restructured in 13 Research Centers. With the end of most nuclear fuel cycle activities, the former facilities were distributed in four different centers: Environmental and Chemical Technology Center; Fuel Cell Center; Materials Science and Engineering Center; Nuclear Fuel Center. Each center has adopted a different strategy and priority to face the R problem and to reintegrate the areas. The resources available depend on the specific program developed in each area (resources available from other sources, not only CNEN

  11. Application of neutron actication analysis to the determination of impurities in rare earth oxides produced at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Saiki, M.; Oliveira Lellis, L. de.

    1988-07-01

    This paper describes a method for trace analysis in high purity rare earth oxides. This method is an application of instrumental neutron activation analysis. The results of analysis obtained in La 2 O 3 , CeO 2 , Pr 6 O 11 Nd 2 O 3 , Sm 2 O 3 and Gd 2 O 3 produced at IPEN-CNEN/SP are presented. A detailed study of the possible interference found in the neutron activation of these materials is also made. The sensitivity of the method is determined for impurities not detected in each sample. (author) [pt

  12. Comparative study between RDC number 20 from ANVISA of 2006 and standard CNEN NN 6.10 of 2014 on radiotherapy services; Estudo comparativo entre a RDC nº20 da ANVISA de 2006 e a norma CNEN NN 6.10 de 2014 para serviços de radioterapia

    Energy Technology Data Exchange (ETDEWEB)

    Silva, D.R.; Geraldo, J.M.; Batista, A.S.M., E-mail: adrinanuclear@yahoo.com.br [Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG (Brazil). Departamento de Anatomia e Imagem

    2017-07-01

    Introduction: The internal procedures of a Radiotherapy Service are performed based on resolutions and standards of the control bodies, both health and radiation use. In the health area, the control is carried out by the National Health Surveillance Agency (ANVISA), through the Resolution of the Collegiate Board of Directors (RDC) number 20 of 2006. On the other hand, because it is a service that uses high energy ionizing radiation, it must comply with the rules of the National Nuclear Energy Commission (CNEN) specifically CNEN NN 6.10 of 2014. It is therefore necessary to integrate the recommendations contained in the ANVISA and CNEN determinations, requiring interpretation and transposition effort for the internal regime of procedures of each institution. Methods: The objective of this study was to compare, discuss and interpret RDC number 20 and CNEN NN 6.10 in relation to the understanding of how the two contribute to the applicability of radioprotection and radiation therapy rules. Results: Tables are presented in constant or not in the two documents and evaluated the contributions and focus of each of them. Conclusion: It is noted that each text is reconciled with the interests of each legislator and supervisory body, that is, CNEN and ANVISA. In the control of the use of radioactive sources and emitting equipment, in the case of CNEN, and in the control of agents harmful to health, ANVISA.

  13. Dosimetric studies of anti-CD20 labeled with therapeutic radionuclides at IPEN/CNEN-SP

    Energy Technology Data Exchange (ETDEWEB)

    Barrio, G.; Dias, C.R.B.R.; Osso Junior, J.A., E-mail: gracielabarrio@gmail.com [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2012-07-01

    Radioimmunotherapy (RIT) makes use of monoclonal antibodies (MAb) labeled with alpha/beta radionuclides for therapeutical purposes, leading to tumor irradiation and destruction, preserving the normal organs on the radiation excess. The therapeutic activity to be injected in a specific patient is based on information obtained in dosimetric studies. Beta emitting radionuclides such as {sup 131}I, {sup 188}Re, {sup 90}Y, {sup 177}Lu and {sup 166}Ho are useful for the development of therapeutic radiopharmaceuticals. Anti-CD20 (Rituximab) is a chimeric MAb directed against antigen surface CD20 on B-lymphocytes, used in non-Hodgkin lymphoma treatment (NHL). The association with beta radionuclides have shown greater therapeutic efficacy. Currently, two radiopharmaceuticals with Anti-CD20 for radioimmunotherapy have FDA approval for NHL treatment: {sup 131}I-AntiCD20 (Bexar) and {sup 90}Y-AntiCD20 (Zevalin). Techniques for the radiolabeling of {sup 188}Re-antiCD20 have been recently developed by IPEN-CNEN/SP in order to evaluate the clinical use of this radionuclide in particular. The use of {sup 188}Re (T{sub 1/2} 17h) produced by the decay of {sup 188}W (T{sub 1/2} 69d), from an {sup 188}W/{sup 188}Re generator system, has represented an alternative to RIT. Beyond high energy beta emission for therapy, {sup 188}Re also emits gamma rays (155keV) suitable for image. The aim of this new project is to compare the labeling of anti-CD20 with {sup 188}Re with the same MAb labeled with {sup 131}I, {sup 177}Lu, {sup 90}Y and even {sup 99m}Tc. The first step in this project is the review of the published data available concerning the labeling of this MAb with different radionuclides, along with data obtained at IPEN, taking into account labeling procedures, labeling yields, reaction time, level and kind of impurities and biodistribution studies. The pharmacokinetic code will be developed in Visual Studio.NET platform through VB.NET and C{sup ++} for biodistribution and dosimetric

  14. Social, economic and environmental assessment of energy and water desalination options for the Brazilian polygon of drought using the IRIS reactor

    International Nuclear Information System (INIS)

    Baptista Filho, D. P.; Cegalla, M.; Raduan, R. N.; Barroso, A. C. O.; Molnary, L.; Lima, F. R. A.; Lira, C. A. B. O.; Lima, R. C. F.

    2004-01-01

    The paper discuss a project conceived to perform a social, economic and environmental assessment of the use of IRIS Reactor for electricity generation and water desalination in the most dry region of Brazil, the Polygon of Drought. The project is financed by the Fund of Energy of the Brazilian Council on Research and Development (CNPq) of the Brazilian Ministry of Science and Technology (MCT), and it will be performed by the Federal University of Pernambuco (UFPe) and the Energetic and Nuclear Research Institute (IPEN) of the Brazilian Nuclear Energy Commission (CNEN). The project will provide comparisons between nuclear and gas options. The final objective of the project is to offer effective evaluations considering the total costs (direct and externalisation) of the different energy options and also the social and environmental aspects associated with them.(author)

  15. Implementation of the Gamma Monitor Calibration Laboratory (LABCAL) of the Institute of Chemical, Biological, Radiological and Nuclear Defense (IDQBRN) of the Technology Center of the Brazilian Army (CTEx)

    Energy Technology Data Exchange (ETDEWEB)

    Balthar, Mario Cesar V.; Amorim, Aneuri de; Santos, Avelino dos and others, E-mail: mariobalthar@gmail.com [Centro Tecnológico do Exército (IDQBRN/CTEx), Rio de Janeiro, RJ (Brazil). Instituto de Defesa Química, Biológica, Radiológica e Nuclear

    2017-07-01

    The objective of this work is to describe the implementation and adaptation stages of the Gamma Monitor Calibration Laboratory (Laboratório de Calibração de Monitores Gama - LABCAL) of the Institute of Chemical, Biological, Radiological and Nuclear Defense (Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN) of the Technology Center of the Brazilian Army (Centro Tecnológico do Exército - CTEx). Calibration of the radiation monitors used by the Brazilian Army will be performed by quantitatively measuring the ambient dose equivalent, in compliance with national legislation. LABCAL still seeks licensing from CNEN and INMETRO. The laboratory in intended to supply the total demand for calibration of ionizing radiation devices from the Brazilian Army. (author)

  16. Implementation of the Gamma Monitor Calibration Laboratory (LABCAL) of the Institute of Chemical, Biological, Radiological and Nuclear Defense (IDQBRN) of the Technology Center of the Brazilian Army (CTEx)

    International Nuclear Information System (INIS)

    Balthar, Mario Cesar V.; Amorim, Aneuri de; Santos, Avelino dos and others

    2017-01-01

    The objective of this work is to describe the implementation and adaptation stages of the Gamma Monitor Calibration Laboratory (Laboratório de Calibração de Monitores Gama - LABCAL) of the Institute of Chemical, Biological, Radiological and Nuclear Defense (Instituto de Defesa Química, Biológica, Radiológica e Nuclear - IDQBRN) of the Technology Center of the Brazilian Army (Centro Tecnológico do Exército - CTEx). Calibration of the radiation monitors used by the Brazilian Army will be performed by quantitatively measuring the ambient dose equivalent, in compliance with national legislation. LABCAL still seeks licensing from CNEN and INMETRO. The laboratory in intended to supply the total demand for calibration of ionizing radiation devices from the Brazilian Army. (author)

  17. Laboratory for Calibration of Gamma Radiation Measurement Instruments (LabCal) of Institute of Chemical, Biological, Radiological and Nuclear Defense (IDQBRN) from Brazilian Army Technology Center (CTEx); Laboratorio de Calibracao de Instrumentode Medicao de Radiacao Gama (LabCal) do IDQBRN do CTEx

    Energy Technology Data Exchange (ETDEWEB)

    Amorim, Aneuri de; Balthar, Mario Cesar V.; Santos, Avelino; Vilela, Paulo Ricardo T. de; Oliveira, Luciano Santa Rita; Penha, Paulo Eduardo C. de Oliveira; Gonzaga, Roberto Neves; Andrade, Edson Ramos de; Oliveira, Celio Jorge Vasques de; Fagundes, Luiz Cesar S., E-mail: aneurideamorim@gmail.com [Centro Tecnologico do Exercito (DQBRN/CTEx), Rio de Janeiro, RJ (Brazil). Instituto de Defesa Quimica, Biologica, Radiologica e Nuclear

    2016-07-01

    This paper describes the calibration laboratory deployment steps (LABCAL) gamma ionizing radiation measuring instruments in the Army Technology Center, CTEx. Initially the calibration of radiation monitors will be held in the dosimetric quantity air kerma and operational quantity ambient dose equivalent H*(d). The LABCAL / CTEx has not yet authorized by CASEC / CNEN. This laboratory aims to calibrate the ionizing radiation instruments used by the Brazilian Army. (author)

  18. Brazilian minerals annual report

    International Nuclear Information System (INIS)

    1977-01-01

    Statistics of Brazilian mineral resources and production in 1977 are presented. Data included refer also to economic aspects, market, taxes, government incentives, manpower, exportation, importation, etc [pt

  19. A new Brazilian regulation for the security of nuclear material and nuclear facilities

    International Nuclear Information System (INIS)

    Tavares, Renato L.A.; Filho, Josélio S.M.; Torres, Luiz F.B.; Lima, Alexandre R.; Lima, Fabiano P.C.

    2017-01-01

    The present paper aims to outline the challenges related to the elaboration and concepts involved in a regulatory transition from a purely prescriptive approach to a combined approach that mixes performance-based concepts and evaluation metrics based on statistical data of equipment and personnel. This methodology might represent an improvement compared to a purely prescriptive approach, in which the regulatory authority defines the measures to be taken by operators of nuclear facilities to prevent theft, sabotage events, and mitigate their consequences. The prescriptive approach, despite having the advantages of clarity in the definition of requirements, simplicity in regulatory terms (inspections to verify compliance), and homogeneity in relation to various facilities, does not allow a clear and effective performance measurement, may provide insufficient or excessive security measures (with excessive expenditure of material and human resources), and the possibility of providing a false sense of security. It is known that, in many countries, the state-sponsored nuclear security regime mixes elements of the two mentioned approaches, prescriptive and based on performance, which is not Brazilian practice nowadays. Such methodological developments happened globally due to the increase of threat level for nuclear facilities and materials. The currently regulation in force is CNEN-NE 2.01, which provides a set of measures intended to implement Physical Protection Systems in Nuclear, Radiological Facilities as well as Transport Operations, and all documents related to security of such issues. The new regulation, named CNEN-NN 2.01, will focus only on Nuclear Material and Facilities (two other regulations specific for Security of Radioactive Sources and Transport Operations are under elaboration process). CNEN NN 2.01 is intended to provide further adherence to new international recommendations, e.g, IAEA INFCIRC 225 Rev.5 (NSS 13), which is currently regarded as the

  20. A new Brazilian regulation for the security of nuclear material and nuclear facilities

    Energy Technology Data Exchange (ETDEWEB)

    Tavares, Renato L.A.; Filho, Josélio S.M.; Torres, Luiz F.B.; Lima, Alexandre R., E-mail: renato.tavares@cnen.gov.br, E-mail: joselio@cnen.gov.br, E-mail: ltorres@cnen.gov.br, E-mail: alexandre.lima@cnen.gov.br [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Diretoria de Radioproteção e Segurança Nuclear; Lima, Fabiano P.C., E-mail: fabianopetruceli@outlook.com [Presidência da República, Brasilia, DF (Brazil). Gabinete de Segurança Institucional

    2017-07-01

    The present paper aims to outline the challenges related to the elaboration and concepts involved in a regulatory transition from a purely prescriptive approach to a combined approach that mixes performance-based concepts and evaluation metrics based on statistical data of equipment and personnel. This methodology might represent an improvement compared to a purely prescriptive approach, in which the regulatory authority defines the measures to be taken by operators of nuclear facilities to prevent theft, sabotage events, and mitigate their consequences. The prescriptive approach, despite having the advantages of clarity in the definition of requirements, simplicity in regulatory terms (inspections to verify compliance), and homogeneity in relation to various facilities, does not allow a clear and effective performance measurement, may provide insufficient or excessive security measures (with excessive expenditure of material and human resources), and the possibility of providing a false sense of security. It is known that, in many countries, the state-sponsored nuclear security regime mixes elements of the two mentioned approaches, prescriptive and based on performance, which is not Brazilian practice nowadays. Such methodological developments happened globally due to the increase of threat level for nuclear facilities and materials. The currently regulation in force is CNEN-NE 2.01, which provides a set of measures intended to implement Physical Protection Systems in Nuclear, Radiological Facilities as well as Transport Operations, and all documents related to security of such issues. The new regulation, named CNEN-NN 2.01, will focus only on Nuclear Material and Facilities (two other regulations specific for Security of Radioactive Sources and Transport Operations are under elaboration process). CNEN NN 2.01 is intended to provide further adherence to new international recommendations, e.g, IAEA INFCIRC 225 Rev.5 (NSS 13), which is currently regarded as the

  1. Storage pool water condition of multipurpose compact 60Co irradiator of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Kodama, Yasko; Rela, Paulo R.

    2008-01-01

    A new type compact gamma irradiator was developed and installed at IPEN-CNEN/SP, it is classified as category IV irradiator according to International Atomic Energy Agency-IAEA. The originality of its design remains on the rotating concrete door, which integrates the shielding system with the product handling system, permitting the input and output of the products in a continuous way, without the necessity to lower the sources and open the irradiator chamber to change the batch. The licensed capacity of this irradiator is 37 P Bq (1 MCi) and the water pool liner, manufactured in stainless steel, has 7.0 m deep and 2.7 m diameter. A sealed radiation source may be defined as a quantity of radioactive material sealed within non-radioactive material, which the confining barrier is intended to prevent leakage or escape of the radioactive material under normal handling conditions and also under foreseeable mishaps. The use of cobalt-60 radiation sources in a wet storage environment requires care in the control of that environment to avoid the potential for deterioration of the stainless steel. In the literature, the tests performed demonstrated that stainless steel had excellent performance under controlled environment conditions. The inspection includes assessing the condition of storage pool water and measuring the pool water conductivity. The demineralized water normally used in storage pools is usually an effective and secure medium in which to store stainless steel. However, there are certain constituents and contaminants in the water which can affect this behaviour. For instance, the pH has a small but definite effect on the tendency for pitting corrosion. Nevertheless, there is also evidence that both strongly alkaline and strongly acid environments can encourage pitting corrosion. In general, an around neutral pH is recommended. The conductivity is used as a measure of the extent to which ionic species are present in the pool water. International recommendations

  2. Thermal hydraulic evaluation for an experimental facility to investigate pressurized thermal shock (PTS) in CDTN/CNEN; Avaliacao termo-hidraulica da montagem experimental de choque termico pressurizado do CDTN/CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Palmieri, Elcio T.; Navarro, Moyses A.; Aronne, Ivam D.; Terra, Jose L. [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), Belo Horizonte, MG (Brazil)

    2002-07-01

    The goal of the work presented in this paper is to provide necessary thermal hydraulics information to the design of an experimental installation to investigate the Pressurized Thermal Shock (PTS) to be implemented at Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN). The envisaged installation has a test section that represents, in a small scale, a pressure vessel of a nuclear reactor. This test section will be heated and then exposed to a PTS in order to evaluate the appearance and development of cracks. To verify the behavior of the temperatures of the pressure vessel after a sudden flood through the annulus, calculations were made using the RELAP5/MOD 3.2.2 gamma code. Different outer radiuses were studied for the annular region. The results showed that the smaller annulus spacing (20 mm) anticipates the wetting of the surface and produces a higher cooling of the external surface, which stays completely wet for a longer time. (author)

  3. The regulatory control over radiation sources: the Brazilian experience and some lessons learned from industrial applications

    International Nuclear Information System (INIS)

    Costa, E.L.C.; Gomes, J.D.R.L.; Gomes, R.S.; Costa, M.L.L.; Thomé, Z.D.; Instituto Militar de Engenharia

    2017-01-01

    This study gives an overview of the activities of the National Commission of Nuclear Energy (CNEN), as the Brazilian nuclear regulatory authority. These activities are described, especially those related to management of orphan sources and radioactive material in scrap metal considering the actions already put into place by CNEN during the licensing and controlling of radioactive sources in the industry and other facilities. In Brazil, there is not yet an effective system for controlling the scrap metal and recycling industry, thus a coordinated approach to achieve a harmonized and effective response with the involvement of third parties is needed, especially the metal industries and ores facilities. These practices call for stringent regulatory control, in order to reduce the occurrence of orphan sources, and consequently, radioactive material appearing in scrap metal. Some challenges of managing the national radiation sources register systems will be discussed, in order to cover effectively all the radiation source history (in a 'from the cradle to the grave' basis), and the dynamic maintenance and update of these data. The main industrial applications considered in this work are those dealing with constant movement of sources all over the country, with geographical issues to be considered in the managing and controlling actions, such as gammagraphy and well-logging. This study aims to identify and promote good practices to prevent inadvertent diversion of radioactive material, taking into account existing international recommendations and some lessons learned in national level. (author)

  4. The regulatory control over radiation sources: the Brazilian experience and some lessons learned from industrial applications

    Energy Technology Data Exchange (ETDEWEB)

    Costa, E.L.C.; Gomes, J.D.R.L.; Gomes, R.S.; Costa, M.L.L.; Thomé, Z.D., E-mail: evaldo@cnen.gov.br, E-mail: jlopes@cnen.gov.br, E-mail: rogeriog@cnen.gov.br, E-mail: mara@cnen.gov.br, E-mail: zielithome@gmail.com [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil). Diretoria de Radioproteção e Segurança Nuclear; Instituto Militar de Engenharia (IME), Rio de Janeiro, RJ (Brazil). Seção de Engenharia Nuclear

    2017-11-01

    This study gives an overview of the activities of the National Commission of Nuclear Energy (CNEN), as the Brazilian nuclear regulatory authority. These activities are described, especially those related to management of orphan sources and radioactive material in scrap metal considering the actions already put into place by CNEN during the licensing and controlling of radioactive sources in the industry and other facilities. In Brazil, there is not yet an effective system for controlling the scrap metal and recycling industry, thus a coordinated approach to achieve a harmonized and effective response with the involvement of third parties is needed, especially the metal industries and ores facilities. These practices call for stringent regulatory control, in order to reduce the occurrence of orphan sources, and consequently, radioactive material appearing in scrap metal. Some challenges of managing the national radiation sources register systems will be discussed, in order to cover effectively all the radiation source history (in a 'from the cradle to the grave' basis), and the dynamic maintenance and update of these data. The main industrial applications considered in this work are those dealing with constant movement of sources all over the country, with geographical issues to be considered in the managing and controlling actions, such as gammagraphy and well-logging. This study aims to identify and promote good practices to prevent inadvertent diversion of radioactive material, taking into account existing international recommendations and some lessons learned in national level. (author)

  5. Monitoring of the radioactive liquid effluents discharged from IPEN-CNEN/SP. Optimization of the procedures adopted

    International Nuclear Information System (INIS)

    Seki, C.R.

    1990-01-01

    The main purpose of a radioactive liquid effluents monitoring of a nuclear installation is to determine the amount of radioactivity discharged to the environment, as well as, to verify if this activity is below the authorized discharge limits established by the competent authority. Although this control has been established on a routine basis since the beginning of operation of the nuclear installations available at IPEN, the growing of such facilities in the last years has implied in an increase in the number of samples to be analyzed. The aim of this work is, therefore, to optimize the procedures adopted in the Environmental Monitoring Division of IPEN-CNEN/SP for the activity measurement of the liquid effluents discharged to the environment. Since these effluents are discharged to Pinheiros river, which presents a high dilution factor, a study is also carried out in order to verify if the activity present can be measured by the equipment available. (author)

  6. A dosimetric survey of the DC1500/25/04 electron beam plant installed at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Kuntz, Florent; Somessari, Elizabeth S.R.; Silveira, Carlos G.da; Bueno, Carmen C.; Calvo, Wilson A.P.; Napolitano, Celia M.; Goncalves, Josemary A.C.; Somessari, Samir L.

    2015-01-01

    In this work we describe a dosimetric survey of the DC1500/25/04 electron beam accelerator installed in the Intense Sources of Radiation Laboratory at IPEN/CNEN-SP. As this accelerator has been used for innumerable applications in radiation processing, product surface and internal doses must be targeted and controlled via operational qualification such as beam energy, beam current, scan width and conveyor speed. The qualification of the accelerator was carried out in order to observe the current performances of the irradiation plant using Alanine (ESR) and CTA (UV Spectrophotometry) dosimeters. Energy (Electron penetration in material) calculations, scanning width/length, homogeneity and irradiation uniformity were evaluated according to ISO/ASTM 51649 and ISO11137-3, as well as process uncertainty establishment. (author)

  7. Thermal hydraulic evaluation for an experimental facility to investigate pressurized thermal shock (PTS) in CDTN/CNEN

    International Nuclear Information System (INIS)

    Palmieri, Elcio T.; Navarro, Moyses A.; Aronne, Ivam D.; Terra, Jose L.

    2002-01-01

    The goal of the work presented in this paper is to provide necessary thermal hydraulics information to the design of an experimental installation to investigate the Pressurized Thermal Shock (PTS) to be implemented at Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN). The envisaged installation has a test section that represents, in a small scale, a pressure vessel of a nuclear reactor. This test section will be heated and then exposed to a PTS in order to evaluate the appearance and development of cracks. To verify the behavior of the temperatures of the pressure vessel after a sudden flood through the annulus, calculations were made using the RELAP5/MOD 3.2.2 gamma code. Different outer radiuses were studied for the annular region. The results showed that the smaller annulus spacing (20 mm) anticipates the wetting of the surface and produces a higher cooling of the external surface, which stays completely wet for a longer time. (author)

  8. Activities of the Laboratory of Neutron Activation Analysis in the Radiochemistry Division - IPEN/CNEN/SP/Brazil

    International Nuclear Information System (INIS)

    Vasconcellos, M.B.A.

    1988-01-01

    Neutron activation analysis (NAA) is one of the relevant applications of nuclear research reactors. Due to the high neutron fluxes available in these reactors, an excellent sensitivity of analysis is attained for many elements. NAA is one of the most sensitive, precise and accurate analytical methods for trace element determination. NAA has been one of the main activities of the Radiochemistry Division of IPEN, since the befinning of the operation of the nuclear reactor IEA-R1. Most of the effort was devoted to research work, aimed to improvements in the method as well as to its applications to several kinds of matrixes (geological, biological, metallic, environmental, forensic). Besides, analytical services were also offered, to the CNEN, to industries, universities, mining companies and research institutes. In the present paper, a review is made of the research work being developed presently at the Radiochemistry Division of IPEN. A discussion is also made of the planned expansion of the analytical services offered. (author) [pt

  9. Evaluation of the radiological impact in the aquatic system in the surrounding of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Jacomino, V.M.F.; Gordon, A.M.P.L.; Venturini, L.

    1989-12-01

    In order to control the discharges of radioactive material in the aquatic system (Jaguare stream and Pinheiros river) in the vicinity of IPEN-CNEN/SP an effluent monitoring program was established on a routine basis. This control is carried out by measuring the activity of the radionuclides present in the liquid effluents (source term) using gamma spectrometry and/or spectrophotometry. The results obtained are then compared with the discharge limits adopted by CNEN when a decision is made upon the discharge of the effluent under consideration. In 1988 the total activity discharged by the nuclear installations available was 1997, 9x10 6 Bq in a total volume of 2421,4 m 3 . The next step was to evaluate the effective equivalent dose in the general public by using the results of the source term and the information available concerning the environment. It was assumed that the only critical pathway is the external gamma irradiation of the people that work in the nearby of the discharge points in Pinheiros river. The effective equivalent dose obtained was 39,4η Sv and the most relevant radionuclides that should be considered 60 Co, 137 Cs, 131 I and 226 Ra. This result is less than 1/10 of the maximum admissible dose limit adopted by the Radiological Protection Standards which is 10 -3 Sv/year. In order to measure the level of radioactivity in the environment, samples of ground water, water and sediments of Pinheiros river were collected and analyzed by using gamma spectrometry and fluorimetry. The radionuclides found were 226 Ra, 22228 Ra, U Nat, 40 K and 7 Be with activities corresponding to the background levels. The analysis of these results and the evaluation of the equivalent dose show that the radiological impact in the aquatic systems considered is insignificant. (author) [pt

  10. PRODUÇÃO E COMPARTILHAMENTO DO CONHECIMENTO NUCLEAR: UM ESTUDO DE CASO NO IEN/CNEN

    Directory of Open Access Journals (Sweden)

    Marcia Pires da Luz Bettencourt

    2012-04-01

    Full Text Available O estudo procurou identificar ações que possam contribuir para a produção e compartilhamento de conhecimentos e informações na Divisão de Radiofármacos do Instituto de Engenharia Nuclear da Comissão Nacional de Energia Nuclear (IEN/CNEN. A motivação para a pesquisa foi o risco, identificado em relatórios da área nuclear, de perda de conhecimento nessa área nos últimos anos. A gestão do conhecimento foi escolhida como ferramenta para o estudo do problema apontado, por possuir metodologias que visam estimular o processo de produção e compartilhamento de conhecimentos e informações, em empresas privadas e também em instituições públicas, como é o caso do IEN/CNEN. A gestão do conhecimento é uma disciplina relativamente nova, que mesmo não tendo nascido na Ciência da Informação, nela vem buscando sustentação teórica e legitimidade. A pesquisa identifica fatores que influenciam no compartilhamento de informação e conhecimento, tais como: redes sociais, comunidades de prática, ambientes facilitadores de colaboração, cultura organizacional, aprendizagem para formação de competências, e narrativas (storytelling. A revisão da literatura e analise dos dados obtidos, diversas práticas foram identificadas, e foram feitas algumas sugestões. Conclui-se que o estímulo institucional à colaboração e à troca de conhecimentos pode influenciar em resultados positivos em relação a um incremento na produção de novos conhecimentos.

  11. The CNEN Helium-Caesium Blow-Down MPD Facility and Experiments with a Prototype Duct

    Energy Technology Data Exchange (ETDEWEB)

    Bertolini, E.; Toschi, R. [CNEN, Frascati (Italy); Lindley, B. C. [C.A. Parsons and Co. Ltd (United Kingdom); Brown, R.; McNab, I. R. [International Research and Development Co. Ltd., Newcastle Upon Tyne (United Kingdom)

    1966-11-15

    The CNEN blow-down loop has been designed to study a helium-caesium MPD generator with particular regard to non-equilibrium ionization effects. An operating condition of the loop is: gas mass flow 0.2 kg/sec, seed fraction 1 at, wt.%, useful pulse duration 20 sec, stagnation temperature 2000 Degree-Sign K, stagnation pressure 5 atm abs, thermal power 1.6 MW, Mach number 0.6, magnetic field 4 Wb/m2, total impurity level less than 100 ppm. A sufficiently wide range of the stagnation conditions can be obtained with the present arrangement of the loop (temperature up to 2000*K, pressure from slightly sub-atmospheric to 6atmabs, gas mass flow from 50 g/sec to 400 g/sec, seed fraction from 0.1 to 2 at. wt.%. The storage heater is an alumina pebble bed electrically heated with tungsten elements and thermally insulated with zirconia fibre; the thermal capacity at 2000 Degree-Sign K is about 1000 MJ. Pure helium is obtained by evaporation of liquid helium at between 4.5 and 5 Degree-Sign K; liquid caesium is injected into a limited section of the pebble bed to provide a mixture of the two gases uniform in density and temperature. The duct is made of boron nitride (5 cm x 3 cm x 22 cm) with 25 pairs of tantalum electrodes whose geometry (electrode width 3 mm, segmentation pitch 9 mm) should prevent current leakage between adjacent electrodes; the duct walls and transfer can be pre-heated up to 1700 Degree-Sign K. A magnetic field of 4 Wb/m{sup 2} is obtained with a pulsed cryogenic magnet with pulse duration of 6 sec. Two series of experiments have been completed to assess the feasibility of the helium-caesium heating system and the generator duct. Heating system experiments, (a) Compatibility of alumina with tungsten, tantalum and caesium, with thermal cycling at 2000 Degree-Sign K; (b) Purification of zirconia fibre and its behaviour at high temperature, with thermal cycling at 2000 Degree-Sign K; (c) Capability of an alumina pebble bed of evaporating, heating and mixing

  12. Temporal comportment assessment of metals in groundwater on the campus at IPEN/CNEN-SP

    Energy Technology Data Exchange (ETDEWEB)

    Faustino, Mainara G.; Monteiro, Lucilena R.; Stellato, Thamiris B.; Soares, Sabrina M.V.; Silva, Tatiane B.S.C.; Silva, Douglas B. da; Marques, Joyce R.; Pires, Maria A.F.; Cotrim, Marycel E.B., E-mail: mainarag@usp.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2015-07-01

    Since 2006, Nuclear and Energy Research Institute (IPEN) performs yearly the Environmental Monitoring Program of Stable Chemical Compounds (PMA-Q).Among other parameters, metals and semi metals in groundwater, collected at IPEN’s facility, are evaluated. The monitoring is conducted in nine wells, in attendance to the current Brazilian environmental legislation, which requires the monitoring of metals and semi metals in groundwater, in accordance with CETESB and CONAMA’s resolutions. CETESB is the Sao Paulo State environmental regulatory agency and CONAMA is the Environmental National Council, both agencies that regulate environmental standards in Brazil and regulate IPEN’s environmental activities. Besides these two environmental regulators, IPEN have to follow the request of the Term for the Adjustment of Conduct (TAC) from (IBAMA), in order to support programs to prevent and control pollution resulting from activities of IPEN’s facilities. In the current PMA-Q, Aluminum (Al) Antimony (Sb), Silver (Ag), Arsenic (As), Lead (Pb), Chromium (Cr), Cobalt (Co), Zinc (Zn), Boron (B), Barium (Ba), Calcium (Ca), Iron (Fe), Manganese (Mn), Mercury (Hg) and Nickel (Ni) are analyzed by using sensitive analytical techniques as inductively coupled plasma optical emission spectrometry (ICP-OES) and graphite furnace atomic absorption spectrometry (GF-AAS). These elements results are in this paper evaluated. Both internal and external quality controls that uses data from interlaboratory programs are discussed here. It was possible to conclude that IPEN’s groundwater attends national standards and IPEN’s monitoring system operates under controlled quality conditions. (author)

  13. Temporal comportment assessment of metals in groundwater on the campus at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Faustino, Mainara G.; Monteiro, Lucilena R.; Stellato, Thamiris B.; Soares, Sabrina M.V.; Silva, Tatiane B.S.C.; Silva, Douglas B. da; Marques, Joyce R.; Pires, Maria A.F.; Cotrim, Marycel E.B.

    2015-01-01

    Since 2006, Nuclear and Energy Research Institute (IPEN) performs yearly the Environmental Monitoring Program of Stable Chemical Compounds (PMA-Q).Among other parameters, metals and semi metals in groundwater, collected at IPEN’s facility, are evaluated. The monitoring is conducted in nine wells, in attendance to the current Brazilian environmental legislation, which requires the monitoring of metals and semi metals in groundwater, in accordance with CETESB and CONAMA’s resolutions. CETESB is the Sao Paulo State environmental regulatory agency and CONAMA is the Environmental National Council, both agencies that regulate environmental standards in Brazil and regulate IPEN’s environmental activities. Besides these two environmental regulators, IPEN have to follow the request of the Term for the Adjustment of Conduct (TAC) from (IBAMA), in order to support programs to prevent and control pollution resulting from activities of IPEN’s facilities. In the current PMA-Q, Aluminum (Al) Antimony (Sb), Silver (Ag), Arsenic (As), Lead (Pb), Chromium (Cr), Cobalt (Co), Zinc (Zn), Boron (B), Barium (Ba), Calcium (Ca), Iron (Fe), Manganese (Mn), Mercury (Hg) and Nickel (Ni) are analyzed by using sensitive analytical techniques as inductively coupled plasma optical emission spectrometry (ICP-OES) and graphite furnace atomic absorption spectrometry (GF-AAS). These elements results are in this paper evaluated. Both internal and external quality controls that uses data from interlaboratory programs are discussed here. It was possible to conclude that IPEN’s groundwater attends national standards and IPEN’s monitoring system operates under controlled quality conditions. (author)

  14. Assessment of Radioactive Liquid Effluents Release at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Bessa Nisti, Marcelo; Godoy dos Santos, Adir Janete

    2008-01-01

    A continuous effluent monitoring program has been established at IPEN's plant in order to allow an environmental impact assessment due to radioactive liquid effluent discharge to sanitary system. Representative samples of radioactive liquid effluents are analyzed by using high resolution gamma spectroscopy and instrumental neutron activation analysis, facing to Brazilian radioprotection regulatory rules. The results are consolidating yearly in the Institute source-term. In this paper, results of the source-term are presented, concerning to years 2004, 2005 and 2006. The total activity discharged was 8.5xl0 8 Bq, 5.7x10 8 Bq and 2.7xl0 8 Bq, respectively. As the release is strongly dependent on the total amount of the effluent and on the dilution factor, special attention is needed in order to obtain the correct value of that last one. The estimated inside plant dilution factor, considering the recent facilities and the reshaping of the sewerage system was 80, 180 and 130, for period of 2004, 2005 and 2006 discharged liquid radioactive effluent

  15. Comparison of activity measurements of the 67Ga and 123I at Brazilian nuclear medicine services

    International Nuclear Information System (INIS)

    Santos, J.A. dos; Silva, M.A.L. da; Lopes, R.T.; Iwahara, A.; Oliveira, A.E. de; Tauhata, L.

    2003-01-01

    Since 1998, the National Laboratory for Ionizing Radiations (LNMRI), of Institute for Radioprotection and Dosimetry, belonging to the Brazilian Commission for Nuclear Energy (IRD/CNEN), is conducting a comparison program for the measurements of radiopharmaceutical activities applied to to patients at the nuclear medicine sector, viewing to assessment the quality of that measurements. This work presents the results of three comparison rounds using the 67 Ga and 123 I, establishing the metrological tracking of the calibrators used by the participants. The results were analysed under the the viewpoint of the conformal with the regulatory authority and show that those comparisons are necessary to improve the quality of radiopharmaceutical measurement activities, identify failures on the equipment and technical procedures used by the nuclear medicine services all over the country

  16. Performance of the Brazilian laboratories on radionuclide analysis in environmental samples

    International Nuclear Information System (INIS)

    Vianna, Maria Elizabeth; Tauhata, Luiz; Oliveira, Josue P.; Oliveira, Antonio E.; Clain, Almir F.; Garcia, Luiz Carlos; Conceicao, Cirilo C. da

    1995-01-01

    The performance of fifteen Brazilian environmental radioanalytical laboratories was evaluated after their participation in nine intercomparison runs of the National Intercomparison Program, PNI, offered by the Instituto de Radioprotecao e Dosimetria, CNEN. A total of 549 radionuclide determinations in environmental samples were evaluated. The results classified as Good ranged from 56.4% for Alpha and Beta Gross determinations up to 84.9% for Gamma spectrometry determinations. These results shows that the best performance in radionuclide determination is reached in gamma spectrometry analyses and the worst in Alpha and Beta Gross determinations. This general behavior is similar to the one reached by other laboratories in international intercomparison programs. (author). 1 ref., 1 fig., 1 tab

  17. Annual report of the Brazilian Directory of R and D - 1995

    International Nuclear Information System (INIS)

    1996-03-01

    The Directory of Research and Development of the Brazilian CNEN (National Nuclear Energy Commission) presents the report for 1995. The publication describes and cover activities carried out in the following areas: nuclear reactors, nuclear fuel cycle, control and instrumentation, application of nuclear techniques, radioisotope production, materials of nuclear interest, radioactive wastes and irradiated materials. Three institutes accomplish Directory's Programme: Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/MG); Instituto de Engenharia Nuclear (IEN/RJ); and Instituto de Pesquisas Energeticas e Nucleares (IPEN/SP). It is important to mention that the Institutes carry out a numberless of activities in cooperation with others institutions such as: universities, industries, private and government organizations. This cooperation is administrated through research contracts and agreements. 28 figs., 11 tabs

  18. Main results of the standardization through anti-coincident from the Brazilian Laboratory for Metrology of Ionizing Radiations - LNMRI/IRD/CNEN-RJ in the last 8 years

    International Nuclear Information System (INIS)

    Silva, Carlos J. da

    2014-01-01

    The LNMRI implemented in 2006 a system of time keeping in anticoincidence live in this time and dead time extensible today 18 radionuclides were standardized. To store the results of these primary standardization the LNMRI/IRD reference with ionization chamber were calibrated with these standards. In this work will be discussed the main operational difficulties and components of uncertainty and the main results. (author)

  19. Optimization of radiation protection for an electron accelerator used in paint cure in films approved by Brazilian Nuclear Energy Commission - CNEN, Rio de Janeiro, Brazil

    International Nuclear Information System (INIS)

    Rios, Denise A. da S.; Sordi, Gian Maria A.A.

    2014-01-01

    This study aims to evaluate the radiological protection system in an installation where there is a self-shielded accelerator Category I, used for paint curing in polymer films, in order to optimize it in situations in which it is appropriate. For this a radiometric survey was conducted in the designated areas to check rate doses at different distances from the radiation focus, in which there is a possibility of presence or persons which can reliably detect any abnormality in the accelerator operation. The comparison of the obtained values related to the accelerator operating current with the natural background radiation showed that they are compatible, signaling that the principle of optimization is already being followed

  20. Bituminization of simulated PWR type reactor wastes, boric evaporator bottons and ion exchange resins, carried out in CNEN/SP using commercial bitumen available in the Brazilian market

    International Nuclear Information System (INIS)

    Grosche Filho, C.E.; Chandra, U.

    1986-01-01

    The first results of the study of bituminization of simulated PWR wastes, boric evaporator bottons and spent ion-exclange resins (OH - , H + ) and incinerated ash-wates are presented and discussed. The study consisted of characterization of the commercial bitumen, locally available and bitumen wastes products of varying whight compositions. The characterization was carried out using standard analysis methods of ABNT and ASTM, and included measurement of, penetration, softening point and flash point. In addition, the bitumen samples were analized for their resin and asphaltene contents. For leaching studies, wastes products of bitumen and resin loaded with 134 Cs were utilized. The method used was according to the ISO norms. The simulation of the industrial process was carried out using an extruder-evaporator typically used in the plastic industries offered by Industria de Maquinas Miotto Ltda., Sao Bernardo do Campo - SP. (Author) [pt

  1. Study of groundwater collection protocols on the IPEN/CNEN-SP campus

    International Nuclear Information System (INIS)

    Marques, Joyce R.; Villa, Sabrina M.; Monteiro, Lucilena R.; Cotrim, Marycel E.B.; Pires, Maria Aparecida F.

    2013-01-01

    As per Brazilian Health Ministry's evaluation, industry is the second activity that most contaminates the soil in Sao Paulo Metropolitan region. In order to assess this scenario and keep a continuous logging of IPEN's installations effect over chemical compounds levels, and to improve the installation radioactive logging, in the region under its campus influence, since 2006, IPEN performs the groundwater monitoring, in the region where it is located. Collections are performed bimonthly in seven monitoring wells, evaluating 17 parameters. These values are compared to the ones established by CONAMA 396/08 Resolution, which provides the groundwater classification and environmental guidelines to chemically stable compounds. So far IPEN keeps the wells in good conditions and performs sampling methods studies to adequate it to current legal standards. The groundwater collection method and the wells characterization, concerning the anionic species content (F - , Cl - , Br - , NO 2 - , NO 3 - , PO 4 -3 e SO 4 -2 ), are evaluated in the present study. The purge procedure requirement was also evaluated. The well purging is the procedure for withdrawing water from inside the well, so the collection is performed only after the water level restoration, thereby ensuring that the water collected represents the aquifer. The use of 'bailer', which requires purging, and a called 'low flow pump', which requires no purging for sample collection, was also evaluated. These methods were selected in this study because they are recommended by CETESB 6410/88, the local standard to groundwater sample collection. Thus some anions concentrations in groundwater sampled with different purging procedures and collection were compared. The concentration change in each well performed with the same collection procedure was compared with the other collection methods variation in order to evaluate if these are equivalents. From the results obtained in this comparative study was possible to optimize the

  2. Brazilian Strategies to Overcome Molybdenum Crisis: Present and Future Perspectives of the Multipurpose Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Osso, J.A. Jr.; Teodoro, R.; Dias, C.R.B.R.; Bezerra, R.R.L.; Villela, L.A.; Correia, J.L.; Perrotta, J.A.; Pereira, G.A.; Zapparoli, C.L. Jr.; Mengatti, J. [Diretoria de Radiofarmacia, Instituto de Pesquisas Energeticas e Nucleares (DIRF-IPEN), Avenida Prof. Lineu Prestes 2242, 05508-000, Sao Paulo, SP (Brazil)

    2011-07-01

    Nuclear Medicine applications in Brazil have been widely growing in the past few decades, following the world trends. Procedures in oncology and cardiology can be highlighted among its major contributions. Nowadays more than 80% of diagnosis procedures are performed with {sup 99m}Tc, readily available from the elution of {sup 99}Mo-{sup 99m}Tc generators. The Brazilian demand, attended solely by IPEN-CNEN/SP, reaches out more than 320 generators per week with a total activity of about 16.7 TBq (450 Ci), which corresponds to 4% of the overall {sup 99}Mo global demand at an importation cost of US$20 million/year, most of it from Canada. The recent {sup 99}Mo supply crisis deeply affected the distribution of generators in Brazil. A short term solution was achieved with the purchase of {sup 99}Mo from Argentine and more recently from South Africa and also the distribution of generators produced by IBA and Israel. Mid term and long term projects are under way aiming the nationalization of the production of {sup 99}Mo. Both solutions will use the recently approved new Brazilian Multipurpose Reactor (BMR) that will be built near Sao Paulo city and will have a 30 MW power. The mid term project consists on the production of (n,{gamma}) {sup 99}Mo and distribution of {sup 99m}Tc and monodoses of radiopharmaceuticals labelled with {sup 99m}Tc to hospitals near Sao Paulo. The long term project deals with the production of {sup 99}Mo through the fission of {sup 235}U using LEU targets. This work describes the efforts taken by IPEN-CNEN/SP to overcome the recent {sup 99}Mo supply crisis and an up-to-date on the projects aiming the nationalization of the {sup 99}Mo production. (author)

  3. Brazilian uranium exploration program

    International Nuclear Information System (INIS)

    Marques, J.P.M.

    1981-01-01

    General information on Brazilian Uranium Exploration Program, are presented. The mineralization processes of uranium depoits are described and the economic power of Brazil uranium reserves is evaluated. (M.C.K.) [pt

  4. Brazilian Consensus on Photoprotection

    Science.gov (United States)

    Schalka, Sérgio; Steiner, Denise; Ravelli, Flávia Naranjo; Steiner, Tatiana; Terena, Aripuanã Cobério; Marçon, Carolina Reato; Ayres, Eloisa Leis; Addor, Flávia Alvim Sant'anna; Miot, Helio Amante; Ponzio, Humberto; Duarte, Ida; Neffá, Jane; da Cunha, José Antônio Jabur; Boza, Juliana Catucci; Samorano, Luciana de Paula; Corrêa, Marcelo de Paula; Maia, Marcus; Nasser, Nilton; Leite, Olga Maria Rodrigues Ribeiro; Lopes, Otávio Sergio; Oliveira, Pedro Dantas; Meyer, Renata Leal Bregunci; Cestari, Tânia; dos Reis, Vitor Manoel Silva; Rego, Vitória Regina Pedreira de Almeida

    2014-01-01

    Brazil is a country of continental dimensions with a large heterogeneity of climates and massive mixing of the population. Almost the entire national territory is located between the Equator and the Tropic of Capricorn, and the Earth axial tilt to the south certainly makes Brazil one of the countries of the world with greater extent of land in proximity to the sun. The Brazilian coastline, where most of its population lives, is more than 8,500 km long. Due to geographic characteristics and cultural trends, Brazilians are among the peoples with the highest annual exposure to the sun. Epidemiological data show a continuing increase in the incidence of non-melanoma and melanoma skin cancers. Photoprotection can be understood as a set of measures aimed at reducing sun exposure and at preventing the development of acute and chronic actinic damage. Due to the peculiarities of Brazilian territory and culture, it would not be advisable to replicate the concepts of photoprotection from other developed countries, places with completely different climates and populations. Thus the Brazilian Society of Dermatology has developed the Brazilian Consensus on Photoprotection, the first official document on photoprotection developed in Brazil for Brazilians, with recommendations on matters involving photoprotection. PMID:25761256

  5. Development of a quality management system for Brazilian nuclear installations

    International Nuclear Information System (INIS)

    Kibrit, Eduardo; Zouain, Desiree Moraes

    2005-01-01

    The present work is a proposal for developing a quality management system for Brazilian nuclear installations, based on applicable standards. The standard ISO 9001:2000 [4] establishes general requirements for the implementation of a quality management system in all kinds of organizations. The standard IAEA 50-C/SG-Q [1] establishes general requirements for the implementation of a quality assurance system in nuclear installations. The standard CNEN-NN- 1.16 [5] establishes the regulating requirements for the quality assurance systems and programs of nuclear installations, for licensing and authorization for operation of these installations in Brazil. The revision of standard IAEA 50-C/SG-Q [1], to be replaced by IAEA DS 338 [2] and IAEA DPP 349 [3], introduces the concept of 'Integrated Management System' for the nuclear area, in preference to the concept of 'Quality Assurance'. This approach is incorporated with the current tendency, because it guides the system to manage, in an integrated way, the requirements of quality, safety, health, environment, security and economics of the installation. The results of the characterization of the quality management systems established in the applicable standards are presented, with the determination of the common and conflicting points among them. Referring data to quality assurance program/quality management system in some nuclear installations of IAEA Member States are also presented. (author)

  6. Development of the Brazilian national sheet scintillator converter of neutron

    International Nuclear Information System (INIS)

    Barbosa, Andre Luis Nunes

    2008-03-01

    Both the national domain of the technology for the separation of rare earth elements and the large reserves of these minerals in Brazilian territory, motivated the study of national sheets scintillators converter of neutrons, using a granular mixture Gd 2 O 3 -Zn S:Ag. Three methodologies were used for the manufacture of such sheets, namely: deposition done with a compressed-air gun on a sheet of cellulose type CG3460-3M; fusion of granular mixture with EVA in the mixing chamber and deposition of granular mixture on the substrate of EVA. It was used the flux of the order of 4,46 x 10 5 neutrons thermic/cm 2 .s, coming from the channel irradiation, J-9, of the reactor Argonauta/IEN/CNEN and the radiographic film AA-400 Kodak Industrex. The performances of national scintillator neutrons converter sheets were analyzed and the images obtained with the, demonstrated that the methodologies proposed are technically feasible and can contribute to the reduction of cost of this technique for NDA, but which lack optimization is aimed at increasing the number of photons of light to allow its use in neutrongraphies in Real Time (NRTR). (author)

  7. Production of Cobalt-57 from irradiation of proton beams on nickel at CV-28 cyclotron of IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Santos, Liliane Landini Mota; Osso Junior, Joao Alberto

    1996-01-01

    The 57 Co is produced at the Cyclotron of IPEN-CNEN/SP through the irradiation of natural Nickel with a protons beam of 24 MeV energy. The aim of this work was to measure the thick target production yield of 57 Co and of its principal radionuclide impurities and the determination of the excitation functions of the nuclear reactions on Ni, to evaluate the best conditions for the 57 Co production. The technique used was of the stacked-foil, of Ni, Cu and Al, being the two latter utilized as current and energy monitors of the protons beam, respectively. The thick target production yield of 57 Co, through the somatory of indirect and direct reaction, 11,31 days after E.O.B., was 905,76 kBq/μA.h (24,48 μCi/μA.h) and only by indirect reaction was 174,64 kBq/μA.h (4,72 μCi/μA.h). (author)

  8. Radiological practices using dosimetric films and electronic dosimeters in F-18 production at cyclotron complex center at IEN/CNEN

    International Nuclear Information System (INIS)

    Santos, Osvaldir P. dos; Silva, J.C.P.; Silva, Luiz Carlos Reina P. da

    2009-01-01

    The aim of this work is to evaluate, guide and correct radiological practices based on dose rate values obtained from dosimetric films and electronic dosimeters used by technicians involved in Fluorine-18 production facilities at IEN/CNEN. Standard statistical methods have been used to analyze and to evaluate these results. The comparison between these results is the first step to orient decisions concerning radiological practices. Besides, radiometric routine surveys are under evaluation in order to improve radiological control in these facility areas. The electronic dosimeters provide the technicians immediate reading and this help them take protective action immediately. So the comparison between dosimetric film and electronic dosimeters data will provide information about how the recently employed electronic dosimeters are being used and what corrections in their practical use are necessary in order to achieve correct practices. In addition the results and observations obtained will be very important to implement possible changes in radiological routine practices in order to optimize them and keep occupationally exposed individuals radiological dose rates, as low as reasonably achievable, according to ALARA principle. (author)

  9. Technical and economic feasibility study for the reactivation of the integral test facility of IPEN/CNEN Nuclear Engineering Center

    Energy Technology Data Exchange (ETDEWEB)

    Biaty, Flávia P.; Rocha, Marcelo da S.; Oliveira, Otávio L. de, E-mail: flavia.biaty@usp.br, E-mail: msrocha@ipen.br, E-mail: otavioluis@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), São Paulo, SP (Brazil)

    2017-07-01

    The Integral Test Facility of Nuclear Engineering Center (CEN/IPEN/CNEN-SP), known as 'Loop 70', is a semi-industrial thermal-hydraulic test facility and can operate as a BWR (Boiling Water Reactor) or a PWR (Pressurizing Water Reactor) mode. Designed and built in the 1980's, it is currently disabled. The experimental circuits ('test loop') are facilities that reproduce the thermohydraulic and fluid dynamic conditions that occur inside a reactor and are used to simulate the practical reality which it is not possible to be obtained through mathematical models. In this context, this research project aims the development of a Business Plan to analyze the technical and economic feasibility related to the reactivation of the facility. This methodology (adapted to the government sector) is a decision-making tool that will offer a wide perspective of the project, set the guidelines and actions that will define the future of the facility and provide a general rule to make investments on it. This paper presents the historic aspects to better understand the Loop 70's current situation. It also presents information about similar facilities around the world, services that can be offered (thermal-hydraulics parameters measurements, equipment qualification and transient analysis due accident situations), results of the strategic analysis (SWOT) performed, specific goals for each critical success or failure factor of the facility, financial aspects related to the reactivation and an overview of the facility's perspectives. (author)

  10. Technical and economic feasibility study for the reactivation of the integral test facility of IPEN/CNEN Nuclear Engineering Center

    International Nuclear Information System (INIS)

    Biaty, Flávia P.; Rocha, Marcelo da S.; Oliveira, Otávio L. de

    2017-01-01

    The Integral Test Facility of Nuclear Engineering Center (CEN/IPEN/CNEN-SP), known as 'Loop 70', is a semi-industrial thermal-hydraulic test facility and can operate as a BWR (Boiling Water Reactor) or a PWR (Pressurizing Water Reactor) mode. Designed and built in the 1980's, it is currently disabled. The experimental circuits ('test loop') are facilities that reproduce the thermohydraulic and fluid dynamic conditions that occur inside a reactor and are used to simulate the practical reality which it is not possible to be obtained through mathematical models. In this context, this research project aims the development of a Business Plan to analyze the technical and economic feasibility related to the reactivation of the facility. This methodology (adapted to the government sector) is a decision-making tool that will offer a wide perspective of the project, set the guidelines and actions that will define the future of the facility and provide a general rule to make investments on it. This paper presents the historic aspects to better understand the Loop 70's current situation. It also presents information about similar facilities around the world, services that can be offered (thermal-hydraulics parameters measurements, equipment qualification and transient analysis due accident situations), results of the strategic analysis (SWOT) performed, specific goals for each critical success or failure factor of the facility, financial aspects related to the reactivation and an overview of the facility's perspectives. (author)

  11. The Brazilian Nuclear Energy Program

    International Nuclear Information System (INIS)

    Carvalho, H.G. de

    1980-01-01

    A survey is initially of the international-and national situation regarding energetic resources. The Brazilian Nuclear Energy Policy and the Brazilian Nuclear Program are dealt with, as well as the Nuclear Cooperation agreement signed with the Federal Republic of Germany. The situation of Brazil regarding Uranium and the main activities of the Brazilian Nuclear Energy Commission are also discussed [pt

  12. Validation of dose-response calibration curve for X-Ray field of CRCN-NE/CNEN: preliminary results

    International Nuclear Information System (INIS)

    Silva, Laís Melo; Mendonç, Julyanne Conceição de Goes; Andrade, Aida Mayra Guedes de; Hwang, Suy F.; Mendes, Mariana Esposito; Lima, Fabiana F.; Melo, Ana Maria M.A.

    2017-01-01

    It is very important in accident investigations that accurate estimating of absorbed dose takes place, so that it contributes to medical decisions and overall assessment of long-term health consequences. Analysis of chromosome aberrations is the most developed method for biological monitoring, and frequencies of dicentric chromosomes are related to absorbed dose of human peripheral blood lymphocytes using calibration curves. International Atomic Energy Agency (IAEA) recommends that each biodosimetry laboratory sets its own calibration curves, given that there are intrinsic differences in protocols and dose interpretations when using calibration curves produced in other laboratories, which could add further uncertainties to dose estimations. The Laboratory for Biological Dosimetry CRCN-NE recently completed dose-response calibration curves for X ray field. Curves of chromosomes dicentrics and dicentrics plus rings were made using Dose Estimate. This study aimed to validate the calibration curves dose-response for X ray with three irradiated samples. Blood was obtained by venipuncture from healthy volunteer and three samples were irradiated by x-rays of 250 kVp with different absorbed doses (0,5Gy, 1Gy and 2Gy). The irradiation was performed at the CRCN-NE/CNEN Metrology Service with PANTAK X-ray equipment, model HF 320. The frequency of dicentric and centric rings chromosomes were determined in 500 metaphases per sample after cultivation of lymphocytes, and staining with Giemsa 5%. Results showed that the estimated absorbed doses are included in the confidence interval of 95% of real absorbed dose. These Dose-response calibration curves (dicentrics and dicentrics plus rings) seems valid, therefore other tests will be done with different volunteers. (author)

  13. Validation of dose-response calibration curve for X-Ray field of CRCN-NE/CNEN: preliminary results

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Laís Melo; Mendonç, Julyanne Conceição de Goes; Andrade, Aida Mayra Guedes de; Hwang, Suy F.; Mendes, Mariana Esposito; Lima, Fabiana F., E-mail: falima@cnen.gov.br, E-mail: mendes_sb@hotmail.com [Centro Regional de Ciências Nucleares, (CRCN-NE/CNEN-PE), Recife, PE (Brazil); Melo, Ana Maria M.A., E-mail: july_cgm@yahoo.com.br [Universidade Federal de Pernambuco (UFPE), Vitória de Santo Antão, PE (Brazil). Centro Acadêmico de Vitória

    2017-07-01

    It is very important in accident investigations that accurate estimating of absorbed dose takes place, so that it contributes to medical decisions and overall assessment of long-term health consequences. Analysis of chromosome aberrations is the most developed method for biological monitoring, and frequencies of dicentric chromosomes are related to absorbed dose of human peripheral blood lymphocytes using calibration curves. International Atomic Energy Agency (IAEA) recommends that each biodosimetry laboratory sets its own calibration curves, given that there are intrinsic differences in protocols and dose interpretations when using calibration curves produced in other laboratories, which could add further uncertainties to dose estimations. The Laboratory for Biological Dosimetry CRCN-NE recently completed dose-response calibration curves for X ray field. Curves of chromosomes dicentrics and dicentrics plus rings were made using Dose Estimate. This study aimed to validate the calibration curves dose-response for X ray with three irradiated samples. Blood was obtained by venipuncture from healthy volunteer and three samples were irradiated by x-rays of 250 kVp with different absorbed doses (0,5Gy, 1Gy and 2Gy). The irradiation was performed at the CRCN-NE/CNEN Metrology Service with PANTAK X-ray equipment, model HF 320. The frequency of dicentric and centric rings chromosomes were determined in 500 metaphases per sample after cultivation of lymphocytes, and staining with Giemsa 5%. Results showed that the estimated absorbed doses are included in the confidence interval of 95% of real absorbed dose. These Dose-response calibration curves (dicentrics and dicentrics plus rings) seems valid, therefore other tests will be done with different volunteers. (author)

  14. Study of socio environmental actions of Energy and Nuclear Research Institute of Sao Paulo (IPEN/CNEN-SP)

    International Nuclear Information System (INIS)

    Mutarelli, Rita de Cassia; Sabundjian, Gaiane; Menzel, Francine

    2013-01-01

    Over the years the evolution of environmental concept comes solidifying increasingly through programs, conferences and various activities taking place in Brazil and worldwide. As a result of this development, sustainability and social responsibility began to be seen as something present in day to day business and institutions. In particular, the Institute of Energy and Nuclear Research (IPEN), state authority associated with University of Sao Paulo (USP) and managed by the National Commission of Nuclear Energy (CNEN), subordinate the Ministry of Science and Technology, which is the focus of this work, has the mission the commitment to society as regards: improving the quality of life of the population, producing scientific knowledge, developing technologies, generating products and services and training human resources in nuclear and related. Based on the mission of IPEN and in the lack of assessment tools of social actions, this paper aims to propose an instrument for assessing social responsibility and serve as a methodological option, strongly committed to the pursuit of improvements of IPEN. Through indicators and dimensions, built up a methodology that seeks to assess social responsibility and identify strengths, to be encouraged and weaknesses, which can be studied and improved. This methodology was applied to IPEN and the results that are presented in this work identified positives regarding their actions to their domestic audience and points to be improved in relation to their external audience. As an initial evaluation, the results were satisfactory; however, this work will continue in order to suggest the implementation of social and environmental actions feasible to be applied in IPEN. (author)

  15. Comparison between dosimeter films and electronic dosimeters results obtained in F-18 production practices at IEN/CNEN

    International Nuclear Information System (INIS)

    Paulo, Osvaldir; Carlos, Luiz R.J.; Mendes, Milton

    2008-01-01

    Full text: The aim of the present work is the comparison of the dose rates values obtained from dosimeter films with the values obtained from electronic dosimeters used by radiological protection technician involved in practices with fluorine-18 production in CV-28 cyclotron at IEN/CNEN. The motivation for this work was the increase on the demand of this radiopharmaceutical. Nowadays there is an increase demand on the number of clinics and hospitals which had started to use the technique of radiodiagnostic using positron-emission tomography (PET). Therefore, the produced radionuclide activities (physics quantity) and also the complexity of the practices of radiological protection in the areas of that facility had increased a lot. The conventional statistical methods will be used to evaluate the results obtained in the analysis of the data obtained in the reading of the dosimeters. This comparative method is however a first step to taking decisions regarding radiological protection service. Therefore that the radiometric surveys of routine are taken in consideration, as well as the information from the technician of radiological protection that is working in those areas. All this data will give support to improve and implement methods and practices on the accelerators' facilities. In addition, the use of these electronic dosimeters will makes possible the technician read these dose rates received immediately during the practices and use these information you make decisions. In case of dose rates values to present above the expected the practice will be ploughed. Another point to be considered is that this work will propitiate the future updates of the procedures designated to those practices and to conduct at the radiological protection optimization. (author)

  16. The whole body counting experience on the internal contamination of radionuclides at IPEN/CNEN-SP, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Cardoso, Joaquim C.S.; Xavier, Marcos, E-mail: jcardoso@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2017-07-01

    The intake of radioactive material by workers can occur in the radiopharmaceuticals production, during the handling of these in the medical fields (nuclear medicine) and in biological and research laboratories. The workers who work in areas where exposures are significant are routinely monitored to demonstrate that the workers are receiving adequate protection from internal contamination. Direct measurements of whole-body and thyroid contents provide an estimate of the activity of these radionuclides in the potentially exposed workers. The whole-body measurements of the workers, trainees and visitors are routinely performed by the In Vivo Monitoring Laboratory (LMIV) of the Energy and Nuclear Research Institute (IPEN/CNEN-SP). The frequency of measurements is defined by the Radioprotection Service (SRP) and the Dose Calculation Group of IPEN. For this purpose LMIV has two counters whole body. NalTl ( 8 x 4″), and thyroid one, NaITl (3 x 3″). The system was calibrated in energy and efficiency, with calibration sources of Eu-152, Am-241 and Co-60 with gamma emissions between 59.54 and 1408.08 keV, positioned within Alderson Research Labs. anthropomorphic phantom. The background measures were obtained of worker's spectrum that was not exposed occupationally yet. The concepts adopted in the HPS N13.30 Standard and proposed in ISO documents for standardization were used for activity measurements. During the period January 2012 to December 2016, approximately 3800 measurements had been carried in workers who develop tasks related to the production and research. The activities of the radionuclides and the workers' tasks relationship had been evaluated. (author)

  17. Improvement of the WBC calibration of the Internal Dosimetry Laboratory of the CDTN/CNEN using MCNPX code

    Energy Technology Data Exchange (ETDEWEB)

    Guerra P, F.; Heeren de O, A. [Universidade Federal de Minas Gerais, Departamento de Engenharia Nuclear, Programa de Pos Graduacao em Ciencias e Tecnicas Nucleares, Av. Pte. Antonio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais (Brazil); Melo, B. M.; Lacerda, M. A. S.; Da Silva, T. A.; Ferreira F, T. C., E-mail: tcff01@gmail.com [Centro de Desenvolvimento da Tecnologia Nuclear, Programa de Pos Graduacao / CNEN, Av. Pte. Antonio Carlos 6627, 31270-901 Belo Horizonte, Minas Gerais (Brazil)

    2015-10-15

    The Plan of Radiological Protection licensed by the National Nuclear Energy Commission - CNEN in Brazil includes the risks of assessment of internal and external exposure by implementing a program of individual monitoring which is responsible of controlling exposures and ensuring the maintenance of radiation safety. The Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology - LID/CDTN is responsible for routine monitoring of internal contamination of the Individuals Occupationally Exposed (IOEs). These are, the IOEs involved in handling {sup 18}F produced by the Unit for Research and Production of Radiopharmaceuticals sources; as well a monitoring of the entire body of workers from the Research Reactor TRIGA IPR-R1/CDTN or whenever there is any risk of accidental incorporation. The determination of photon emitting radionuclides from the human body requires calibration techniques of the counting geometries, in order to obtain a curve of efficiency. The calibration process normally makes use of physical phantoms containing certified activities of the radionuclides of interest. The objective of this project is the calibration of the WBC facility of the LID/CDTN using the BOMAB physical phantom and Monte Carlo simulations. Three steps were needed to complete the calibration process. First, the BOMAB was filled with a KCl solution and several measurements of the gamma ray energy (1.46 MeV) emitted by {sup 40}K were done. Second, simulations using MCNPX code were performed to calculate the counting efficiency (Ce) for the BOMAB model phantom and compared with the measurements Ce results. Third and last step, the modeled BOMAB phantom was used to calculate the Ce covering the energy range of interest. The results showed a good agreement and are within the expected ratio between the measured and simulated results. (Author)

  18. Study of socio environmental actions of Energy and Nuclear Research Institute of Sao Paulo (IPEN/CNEN-SP)

    Energy Technology Data Exchange (ETDEWEB)

    Mutarelli, Rita de Cassia; Sabundjian, Gaiane; Menzel, Francine, E-mail: rmutarelli@gmail.com, E-mail: gdjian@ipen.br, E-mail: fmenzel@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    Over the years the evolution of environmental concept comes solidifying increasingly through programs, conferences and various activities taking place in Brazil and worldwide. As a result of this development, sustainability and social responsibility began to be seen as something present in day to day business and institutions. In particular, the Institute of Energy and Nuclear Research (IPEN), state authority associated with University of Sao Paulo (USP) and managed by the National Commission of Nuclear Energy (CNEN), subordinate the Ministry of Science and Technology, which is the focus of this work, has the mission the commitment to society as regards: improving the quality of life of the population, producing scientific knowledge, developing technologies, generating products and services and training human resources in nuclear and related. Based on the mission of IPEN and in the lack of assessment tools of social actions, this paper aims to propose an instrument for assessing social responsibility and serve as a methodological option, strongly committed to the pursuit of improvements of IPEN. Through indicators and dimensions, built up a methodology that seeks to assess social responsibility and identify strengths, to be encouraged and weaknesses, which can be studied and improved. This methodology was applied to IPEN and the results that are presented in this work identified positives regarding their actions to their domestic audience and points to be improved in relation to their external audience. As an initial evaluation, the results were satisfactory; however, this work will continue in order to suggest the implementation of social and environmental actions feasible to be applied in IPEN. (author)

  19. Optimization of the internal target system of the C V-28 cyclotron at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Araujo, Sumair Gouveia de

    1996-01-01

    The C V-28 cyclotron at IPEN-CNEN/S P is used mainly for radioisotope production to be utilized in nuclear medicine for diagnostic purposes. Among these radioisotopes we can cite 67 Ga and 111 In, which are obtained by irradiation of Zn and Cd solid targets. Up to now, the irradiations were performed in the external beam line, which has limitations in beam current due to the extraction system, that can at best extract between 50 and 70% of the produced beam. This is a critical point for an efficient radioisotope production. A possible solution to achieve high beam currents is a system that allows the irradiation of these solid targets with the internal beam. In this case, the total produced beam can be used. For this, the objective of this work was to modify and improve the internal target system of the C V-28 Cyclotron, which had three critical points in the original project, that made the system useless. First, the transport of the target to the irradiation position was modified: the pneumatic tube was changed to a motor drive service. Secondly, the target cooling system was improved. Third and the most critical, the modification on the locking system of the target holder that could bring the cyclotron tank to atmosphere. These modifications implied on a change in all logical sequence of the target control. With these modifications the system became more versatile and showed more reproducibility and reliability than the original internal target system. The loss of mass in natural Zn targets irradiated with currents up to 80 μA was negligible. The production yield of 67 Ga obtained, at EOB, was 21.2 MBq/μAh (0.57 mCi/μAh), that is in good agreement with those obtained in the irradiation with external beams. (author)

  20. Improvement of the WBC calibration of the Internal Dosimetry Laboratory of the CDTN/CNEN using MCNPX code

    International Nuclear Information System (INIS)

    Guerra P, F.; Heeren de O, A.; Melo, B. M.; Lacerda, M. A. S.; Da Silva, T. A.; Ferreira F, T. C.

    2015-10-01

    The Plan of Radiological Protection licensed by the National Nuclear Energy Commission - CNEN in Brazil includes the risks of assessment of internal and external exposure by implementing a program of individual monitoring which is responsible of controlling exposures and ensuring the maintenance of radiation safety. The Laboratory of Internal Dosimetry of the Center for Development of Nuclear Technology - LID/CDTN is responsible for routine monitoring of internal contamination of the Individuals Occupationally Exposed (IOEs). These are, the IOEs involved in handling 18 F produced by the Unit for Research and Production of Radiopharmaceuticals sources; as well a monitoring of the entire body of workers from the Research Reactor TRIGA IPR-R1/CDTN or whenever there is any risk of accidental incorporation. The determination of photon emitting radionuclides from the human body requires calibration techniques of the counting geometries, in order to obtain a curve of efficiency. The calibration process normally makes use of physical phantoms containing certified activities of the radionuclides of interest. The objective of this project is the calibration of the WBC facility of the LID/CDTN using the BOMAB physical phantom and Monte Carlo simulations. Three steps were needed to complete the calibration process. First, the BOMAB was filled with a KCl solution and several measurements of the gamma ray energy (1.46 MeV) emitted by 40 K were done. Second, simulations using MCNPX code were performed to calculate the counting efficiency (Ce) for the BOMAB model phantom and compared with the measurements Ce results. Third and last step, the modeled BOMAB phantom was used to calculate the Ce covering the energy range of interest. The results showed a good agreement and are within the expected ratio between the measured and simulated results. (Author)

  1. The whole body counting experience on the internal contamination of radionuclides at IPEN/CNEN-SP, Brazil

    International Nuclear Information System (INIS)

    Cardoso, Joaquim C.S.; Xavier, Marcos

    2017-01-01

    The intake of radioactive material by workers can occur in the radiopharmaceuticals production, during the handling of these in the medical fields (nuclear medicine) and in biological and research laboratories. The workers who work in areas where exposures are significant are routinely monitored to demonstrate that the workers are receiving adequate protection from internal contamination. Direct measurements of whole-body and thyroid contents provide an estimate of the activity of these radionuclides in the potentially exposed workers. The whole-body measurements of the workers, trainees and visitors are routinely performed by the In Vivo Monitoring Laboratory (LMIV) of the Energy and Nuclear Research Institute (IPEN/CNEN-SP). The frequency of measurements is defined by the Radioprotection Service (SRP) and the Dose Calculation Group of IPEN. For this purpose LMIV has two counters whole body. NalTl ( 8 x 4″), and thyroid one, NaITl (3 x 3″). The system was calibrated in energy and efficiency, with calibration sources of Eu-152, Am-241 and Co-60 with gamma emissions between 59.54 and 1408.08 keV, positioned within Alderson Research Labs. anthropomorphic phantom. The background measures were obtained of worker's spectrum that was not exposed occupationally yet. The concepts adopted in the HPS N13.30 Standard and proposed in ISO documents for standardization were used for activity measurements. During the period January 2012 to December 2016, approximately 3800 measurements had been carried in workers who develop tasks related to the production and research. The activities of the radionuclides and the workers' tasks relationship had been evaluated. (author)

  2. Brazilian women in politics.

    Science.gov (United States)

    Sanders, T G

    1987-01-01

    Women are gradually gaining influence in Brazilian politics, especially since recent advances in the women's movement, but they still play a limited role. There have been journals devoted to feminism and some notable feminists since 1850. In 1932 suffragettes in Brazil gained women the right to vote. Women's associations burgeoned in the 1940s and 1950s, culminating in a peak in number of women in national elected positions in 1965. A repressive military regime reversed the process, which resumed in 1975. 1975 was also significant for the Brazilian women's movement because of the U.N. Women's Year. Several large, influential feminist political action groups were formed, typically by upper class women with leftist views, although some church and union groups from lower classes also appeared. In 1979-1981, the coherence of these groups fell into schism and fragmentation, because of disagreements over the feminist political doctrines and roles, views on legality of abortion, and special interest groups such as lesbians. Another bitter dispute is opposition by leftist women to BEMFAM, the Brazilian Society of Family Welfare, which provides family planning for the poor: leftists oppose BEMFAM because it is supported by funds from "imperialist" countries such as the U.S. There are several types of feminists groups: those that emphasize health, sexuality and violence; those composed of lesbians; those originating from lower classes and unions; publicly instituted organizations. Brazilian law forbids discrimination against women holding public office, but in reality very few women actually do hold office, except for mayors of small towns and a few administrators of the Education and Social Security ministries. Political office in Brazil is gained by clientism, and since women rarely hold powerful positions in business, they are outsiders of the system. Brazilian women have achieved much, considering the low female literacy rate and traditional power system, but their

  3. Total alpha and beta determination by liquid scintillation counting in water samples from a Brazilian intercomparison exercise

    International Nuclear Information System (INIS)

    Dias, Fabiana F.; Taddei, Maria Helena T.; Pontedeiro, Elizabeth May Braga Dulley

    2009-01-01

    This paper describes CNEN/LAPOC's participation in the Brazilian Intercomparison Exercise (PNI) for simultaneous determination of total radioactivity in water samples, which took place in August and December 2008. The Proficiency Test (PT) also involved a short description of the nuclear analytical technique employed, emphasizing sources of uncertainty. A Liquid Scintillation System (Packard TRICARB 2700) was used with appropriate corrections applied to final results, expressed as Bq L -1 . Participation and PT data provide independent information on performance of a Laboratory and have an important role in method validation; especially because it allows the assessment of method performance over an entire range of concentrations and matrices. PT is also an important tool to demonstrate equivalence of measurements, if not their metrological comparability, and to promote education and improvement of Lab practices. (author)

  4. Annual report of the Brazilian Directory of R and D - 1995; Relatorio anual da Diretoria de P e D 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-03-01

    The Directory of Research and Development of the Brazilian CNEN (National Nuclear Energy Commission) presents the report for 1995. The publication describes and cover activities carried out in the following areas: nuclear reactors, nuclear fuel cycle, control and instrumentation, application of nuclear techniques, radioisotope production, materials of nuclear interest, radioactive wastes and irradiated materials. Three institutes accomplish Directory`s Programme: Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/MG); Instituto de Engenharia Nuclear (IEN/RJ); and Instituto de Pesquisas Energeticas e Nucleares (IPEN/SP). It is important to mention that the Institutes carry out a numberless of activities in cooperation with others institutions such as: universities, industries, private and government organizations. This cooperation is administrated through research contracts and agreements. 28 figs., 11 tabs.

  5. Analysis of normative requirements for the development and implementation of a quality management system in Brazilian nuclear installations and activities

    International Nuclear Information System (INIS)

    Kibrit, Eduardo

    2008-01-01

    The present work identifies, characterizes and analyses the normative requirements for the development and implementation of quality management systems in Brazilian nuclear installations and activities. The requirements established in standards IAEA GS-R-3, IAEA GS-G-3.1, IAEA DS 349, NBR ISO 9001:2000 e CNEN-NN-1.16 are critically analyzed. A correlation matrix of the applicable standards is presented and the related topics among them are identified. The standards IAEA GS-R-3, IAEA GS-G-3.1 and IAEA DS 349 define general requirements for establishing, implementing, assessing and continually improving an integrated management system in nuclear installations and activities, in IAEA member countries. The standard NBR ISO 9001:2000 establishes general requirements for the implementation of a quality management system in all kinds of organizations. The standard CNEN NN-1.16 establishes the regulating requirements for the quality assurance systems and programs of nuclear installations, for licensing and authorization for operation of these installations in Brazil. The standard IAEA GS-R-3 that replaces the code IAEA 50-C-Q introduces the concept of 'Integrated Management System' for the nuclear area, in preference to the concepts of 'Quality Assurance' and 'Quality Management'. This new approach is aligned with the current tendency incorporating requirements of quality, safety, health, environment, security, economics and other in a unique management system. Examples of quality management systems implemented by Brazilian nuclear organizations and by nuclear organizations outside Brazil are analyzed and considered in the discussion of results. (author)

  6. Internal contamination monitoring through measurements in vivo at whole body contamination unity of IRD-CNEN, Rio de Janeiro, Brazil; Monitoracao da contaminacao interna atraves de medicoes in vivo na Unidade de Contador de Corpo Inteiro do IRD-CNEN, Rio de Janeiro, Brasil

    Energy Technology Data Exchange (ETDEWEB)

    Dantas, Ana Leticia A.; Lucena, Eder A.; Dantas, Bernardo M., E-mail: adantas@ird.gov.b, E-mail: eder@ird.gov.b, E-mail: bmdantas@ird.gov.b [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil). Lab. de Monitoracao In Vivo. Servico de Monitoracao Individual Interna

    2011-10-26

    The present work approaches the internal contamination monitoring capacity through measurements performed at the Whole-body Counter Unity of the in-vivo monitoring laboratory (LABMIV) of the IRD-CNEN, Rio de Janeiro, Brazil, present thr main parameters related to the monitoring techniques developed, and the the available instrumentation for identification and quantification in vivo of photon emitter radionuclides with energy in the range of 10-3000 keV, incorporated by workers and public individuals

  7. Procedures for calibration of clinical dosemeters of radiotherapy with gamma radiation Co-60 in the IPEN-CNEN, Sao Paulo, Brazil

    International Nuclear Information System (INIS)

    Damatto, Willian B.; Santos, Gelson P.; Potiens, Maria da Penha A.; Vivolo, Vitor

    2009-01-01

    The periodic calibration of clinic dosimeters is a very important task, because those measurement systems performing the control quality of the radioactive source and for that assure the control quality of the patient dose estimative. This paper shows the calibration procedures and routine improved in the calibration laboratory of IPEN/CNEN-SP to be applied to the clinic dosimeters following international and national recommendations and yet the spend care that the clients should have with the utilization of that measurement systems for control quality of the radiotherapy procedures, for reduce the dose received for patient, and workers, and for increase the confidence level of the measurements.(author)

  8. The Brazilian Twin Registry.

    Science.gov (United States)

    Ferreira, Paulo H; Oliveira, Vinicius C; Junqueira, Daniela R; Cisneros, Lígia C; Ferreira, Lucas C; Murphy, Kate; Ordoñana, Juan R; Hopper, John L; Teixeira-Salmela, Luci F

    2016-12-01

    The Brazilian Twin Registry (BTR) was established in 2013 and has impelled twin research in South America. The main aim of the initiative was to create a resource that would be accessible to the Brazilian scientific community as well as international researchers interested in the investigation of the contribution of genetic and environmental factors in the development of common diseases, phenotypes, and human behavior traits. The BTR is a joint effort between academic and governmental institutions from Brazil and Australia. The collaboration includes the Federal University of Minas Gerais (UFMG) in Brazil, the University of Sydney and University of Melbourne in Australia, the Australian Twin Registry, as well as the research foundations CNPq and CAPES in Brazil. The BTR is a member of the International Network of Twin Registries. Recruitment strategies used to register twins have been through participation in a longitudinal study investigating genetic and environmental factors for low back pain occurrence, and from a variety of sources including media campaigns and social networking. Currently, 291 twins are registered in the BTR, with data on demographics, zygosity, anthropometrics, and health history having been collected from 151 twins using a standardized self-reported questionnaire. Future BTR plans include the registration of thousands of Brazilian twins identified from different sources and collaborate nationally and internationally with other research groups interested on twin studies.

  9. BRAZILIAN NEWS PORTALS CHARACTERISTICS

    Directory of Open Access Journals (Sweden)

    Heloiza G. Herckovitz

    2011-02-01

    Full Text Available A content analysis of four Brazilian news media portals found that economic news dominated the top headlines with little attention paid to education, the environment and welfare. Other trends included a focus on local events and national news sources, reliance on few sources, mostly official ones, and a low percentage of news that fitted the concept of newsworthiness (a combination of both social significance and deviance concepts. Other findings of a study of 432 top news stories published by UOL, Estadão, iG and Terra during a 15-day period between February and March 2008 indicate that the top portions of the portals’ front pages carry news that lacks story depth, editorial branding, and multimedia applications. The results suggest that online news portals are in their infancy although Brazil has the largest online population of Latin America. This study hopes to shed light on the gatekeeping process in Brazilian news portals. Brazilian media portals have yet to become a significant editorial force able to provide knowledge about social issues and public affairs in a socially responsible fashione.

  10. Adjustment of the Brazilian radioprotection standards to the safety principles of the International Atomic Energy Agency; Adequacao das normas brasileiras de radioprotecao aos principios fundamentais de seguranca da International Atomic Energy Agency

    Energy Technology Data Exchange (ETDEWEB)

    Pereira, Wagner de S.; Py Junior, Delcy de A., E-mail: pereiraws@gmail.com [Industrias Nucleares do Brasil (INB), Pocos de Caldas, MG (Brazil). Unidade de Tratamento de Minerio. Grupo Multidisciplinar de Radioprotecao; Kelecom, Alphonse, E-mail: akelecom@id.uff.br [Universidade Federal Fluminense (LARARA-PLS/GETA/UFF), Niteroi, RJ (Brazil). Grupo de Estudos em Temas Ambientais. Lab. de Radiobiologia e Radiometria Pedro Lopes dos Santos; Pereira, Juliana R. de S., E-mail: pereirarsj@gmail.com [Universidade Federal de Alfenas, Pocos de Caldas, MG (Brazil)

    2013-07-01

    The International Atomic Energy Agency (IAEA) has a recommendation with 10 basic safety principles (Fundamental Safety Principles Safety Fundamentals series, number SF-1), which are: 1) Responsibility for safety; 2) Role for government; 3) Leadership and management for safety; 4) Justification of facilities and activities; 5) Optimization of protection; 6) Limitation of risk to individuals; 7) Protection of present and futures generations; 8) Prevention of accidents; 9) Emergency preparedness and response and 10) Protection actions to reduce existing or unregulated radiations risk. The aim of this study is to verify that the Brazilian standards of radiation protection meet the principles described above and how well suited to them. The analysis of the national radiation protection regulatory system, developed and deployed by the National Nuclear Energy Commission (CNEN), showed that out of the ten items, two are covered partially, the number 2 and 10. The others are fully met. The item 2 the fact that the regulatory body (CNEN) be stock controller of a large company in the sector put in check its independence as a regulatory body. In item 10 the Brazilian standard of radiation protection does not provide explicit resolution of environmental liabilities.

  11. Proposal of a model for evaluation of research and development projects in a public scientific and technological institution: a survey in CNEN

    International Nuclear Information System (INIS)

    Silva, Eduardo de Assumpcao

    2017-01-01

    Science and technology are directly related to the development of a country. The research and development projects in CNEN are financed by the direct resources of the budget of the Union and of the Development Agencies such as FINEP and CNPq. In general, project managers believe they can succeed when they complete a project on schedule, budget, and anticipated requirements, which is commonly known as a 'triple constraint' or 'iron triangle'. However, in the review of the literature, other criteria for evaluating success in projects, such as the benefits generated by society, the development of the team's capabilities, future opportunities, new technologies, among others, were verified. In this way, in order to assist the manager in the evaluation of this type of project, the present research carried out a review in the literature aiming to find concepts about success in projects and their evaluation criteria, proposed a model based on the theoretical reference and Importance and use of these criteria with the CNEN specialists, who work directly in the R and D projects of a public ICT in the nuclear area. The results showed that the criteria proposed in the model have a high degree of importance and show a decrease in the degree of utilization, suggesting that the criteria used in the model can help managers in the evaluation of these projects. (author)

  12. Prospection of implementation of distance learning at IPEN/CNEN-SP for the course on fundamentals of nuclear physics using infrastructure of free software

    Energy Technology Data Exchange (ETDEWEB)

    Tondin, Jose Egidio M.; Menezes, Mario O. de; Vasconcellos, Marina B.A.; Osso Junior, Joao A., E-mail: mbvascon@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2009-07-01

    The main objective of the present work is to prospect the implementation of the methods and techniques of distance learning to the course of Fundamentals of Nuclear Physics,which is obligatory for all students of the graduate course of IPEN/CNEN-SP (USP - Area of Nuclear Technology). It was chosen the free software MOODLE (Modular Object-Oriented Dynamic Learning Environment), created in 2001, which allows the collaborative educational work by means of internet navigation. The first part of the present work was to prepare a pilot project for the implantation of distance learning for the course on Fundamentals of Nuclear Physics at the graduate course of IPEN/CNEN-SP, by inserting in the platform all the lecture presentations prepared by the teacher responsible for the course, as well as papers related to the subject, videos, exercises and tests. A total of 118 students at MSc and PhD levels of IPEN participated of the research, as well as 16 professors responsible for several courses at IPEN. The data collection comprised the following phases: questionnaires about the profile of the students, utilization of the course inserted in the Moodle platform, opinion of the students about the use of the platform and opinion of the professors about distance learning. (author)

  13. Prospection of implementation of distance learning at IPEN/CNEN-SP for the course on fundamentals of nuclear physics using infrastructure of free software

    International Nuclear Information System (INIS)

    Tondin, Jose Egidio M.; Menezes, Mario O. de; Vasconcellos, Marina B.A.; Osso Junior, Joao A.

    2009-01-01

    The main objective of the present work is to prospect the implementation of the methods and techniques of distance learning to the course of Fundamentals of Nuclear Physics,which is obligatory for all students of the graduate course of IPEN/CNEN-SP (USP - Area of Nuclear Technology). It was chosen the free software MOODLE (Modular Object-Oriented Dynamic Learning Environment), created in 2001, which allows the collaborative educational work by means of internet navigation. The first part of the present work was to prepare a pilot project for the implantation of distance learning for the course on Fundamentals of Nuclear Physics at the graduate course of IPEN/CNEN-SP, by inserting in the platform all the lecture presentations prepared by the teacher responsible for the course, as well as papers related to the subject, videos, exercises and tests. A total of 118 students at MSc and PhD levels of IPEN participated of the research, as well as 16 professors responsible for several courses at IPEN. The data collection comprised the following phases: questionnaires about the profile of the students, utilization of the course inserted in the Moodle platform, opinion of the students about the use of the platform and opinion of the professors about distance learning. (author)

  14. The effect of gamma irradiation on the microbiological analysis on commercial functional Brazilian green banana flour

    International Nuclear Information System (INIS)

    Taipina, Magda S.; Lamardo, Leda C.A.; Santos, Josefina S.; Silva Junior, Eneo A. da; Balian, Simone C.

    2011-01-01

    In Brazil, although it is qualified as a major world producers, however, the production losses are high. Nevertheless, these losses can be reduced by processing the fruit 'unsuitable' for consumption into products based on green banana (pulp, rind and flour). The green banana flour shows enhanced nutrition value, with higher contents of mineral, dietary fiber, resistant starch, and total phenolics, for use in Brazilian irradiated ready - to eat foods, such as bread, macaroni, among others. Food irradiation has been identified as safe technology to reduce risk of foodborne illness as part of high-quality food production, processing, handling and preparation. Food irradiation utilizes a source of ionizing energy that passes through food to destroy harmful bacteria and other organisms. Often referred to as 'cold pasteurization', food irradiation offers negligible loss of nutrients or sensory qualities in food as it does not substantially raise the temperature of the food during processing. The object of this work was to determine the effect of gamma irradiation on microbiological analyses of the: the number of mesophiles, total coliforms at 35 deg C, coliforms at 45 deg C, Staphylococcus aureus and Salmonella spp of the green banana flour, commercially found in the Brazilian market. The microbiological analyses were carried out in conformity with the methodologies described at the Faculty of Veterinary Medicine, according to the current legislation. Irradiation was performed in a 60 Co Gammacell 220 (AECL) source, with dose of 3kGy at IPEN/CNEN-SP. In samples of Brazilian green banana flour, irradiated at 3 kGy, the growth of all microorganisms (mesophiles, total coliforms at 35 deg C, coliform at 45 deg C and Staphylococcus coagulase positive) were reduced. As a result, the application of the irradiation technique may be recommended to enhance the food safety. (author)

  15. The effect of gamma irradiation on the microbiological analysis on commercial functional Brazilian green banana flour

    Energy Technology Data Exchange (ETDEWEB)

    Taipina, Magda S.; Lamardo, Leda C.A.; Santos, Josefina S.; Silva Junior, Eneo A. da [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Balian, Simone C., E-mail: balian@usp.b [Universidade de Sao Paulo (USP), SP (Brazil). Fac. de Medicina Veterinaria e Zootecnia

    2011-07-01

    In Brazil, although it is qualified as a major world producers, however, the production losses are high. Nevertheless, these losses can be reduced by processing the fruit 'unsuitable' for consumption into products based on green banana (pulp, rind and flour). The green banana flour shows enhanced nutrition value, with higher contents of mineral, dietary fiber, resistant starch, and total phenolics, for use in Brazilian irradiated ready - to eat foods, such as bread, macaroni, among others. Food irradiation has been identified as safe technology to reduce risk of foodborne illness as part of high-quality food production, processing, handling and preparation. Food irradiation utilizes a source of ionizing energy that passes through food to destroy harmful bacteria and other organisms. Often referred to as 'cold pasteurization', food irradiation offers negligible loss of nutrients or sensory qualities in food as it does not substantially raise the temperature of the food during processing. The object of this work was to determine the effect of gamma irradiation on microbiological analyses of the: the number of mesophiles, total coliforms at 35 deg C, coliforms at 45 deg C, Staphylococcus aureus and Salmonella spp of the green banana flour, commercially found in the Brazilian market. The microbiological analyses were carried out in conformity with the methodologies described at the Faculty of Veterinary Medicine, according to the current legislation. Irradiation was performed in a {sup 60}Co Gammacell 220 (AECL) source, with dose of 3kGy at IPEN/CNEN-SP. In samples of Brazilian green banana flour, irradiated at 3 kGy, the growth of all microorganisms (mesophiles, total coliforms at 35 deg C, coliform at 45 deg C and Staphylococcus coagulase positive) were reduced. As a result, the application of the irradiation technique may be recommended to enhance the food safety. (author)

  16. Hydrological studies in Brazilian Northeast

    International Nuclear Information System (INIS)

    1981-01-01

    Studies carried on as a result of collaboration between the Federal University of Ceara, Brazil (research team) and the Brazilian Northeastern Bank (financing agency), aiming at a better knowledge of the hydrological problems of Brazilian Northeastern region, are described. (I.C.R.) [pt

  17. Brazilian Portuguese Ethnonymy and Europeanisms.

    Science.gov (United States)

    Stephens, Thomas M.

    1994-01-01

    Delineates the incorporation and analyzes the impact of European borrowings in Brazilian racio-ethnic terminology. This overview covers French, Italian, Spanish, and English influences. Borrowings from European languages have had a small impact on the calculus of Brazilian racio-ethnic terms. (43 references) (Author/CK)

  18. Managing migration: the Brazilian case

    OpenAIRE

    Eduardo L. G. Rios-Neto

    2005-01-01

    The objective of this paper is to present the Brazilian migration experience and its relationship with migration management. The article is divided into three parts. First, it reviews some basic facts regarding Brazilian immigration and emigration processes. Second, it focuses on some policy and legal issues related to migration. Finally, it addresses five issues regarding migration management in Brazil.

  19. Radioprotection in Brazilian universities

    International Nuclear Information System (INIS)

    Caballero, K.C.; Borges, J.C.

    1992-01-01

    The purpose of this work was to obtain a broad knowledge of the circumstances under which activities involving ionizing radiations are held at brazilian academic institutions. Around 90 institutions (universities and isolated schools of both public and private sectors) were invited, by mail, to answer an inquiry with questions from technical to legal aspects of their activities with radiations. Information received from 2/3 of institutions contacted, permitted conclusions as: there is a wide ignorance about radioprotection procedures and legislation, although few universities maintain some efficient radioprotection staff; there is a need for the establishment of a standard radioprotection text dedicated to those specific activities of the sector. (author)

  20. Brazilian energy overview

    International Nuclear Information System (INIS)

    Souza, J.A.M. de.

    1975-01-01

    The Brazilian energy overview compared with the rest of the world is presented, as well as the current situation and prospects for the future. In a first part, the evalution from the past through the present time is considered, and in a second part, attention is given on the future prospects for Brazil and the different countries in connection with the energy field. It is expected that the current per capita energy consumption in Brazil, in all of its various forms, now totalling 6 million kcal/inh, will reach at least 22 million kcal/inh toward the end of this century

  1. The Brazilian Bolsa Escola

    Directory of Open Access Journals (Sweden)

    Rachel Cassidy

    2008-12-01

    Full Text Available The Bolsa Escola (‘school stipend’ and its successor the Bolsa Familia (‘family stipend’ schemes have formed a crucial and successful part of Brazil’s welfare program. Bolsa Escola provided aid to Brazil’s poorest families on the condition that their children attended school, and Bolsa Familia has extended this idea, giving aid on the condition that children both attend school and receive vaccinations. Bolsa Familia is currently the largest Conditional Cash Transfer Program (CCTP in the world, costing roughly 0.5% of Brazilian GDP and helping around 11.2 million families (around 44 million Brazilians, constituting roughly one fifth of the population. Multilateral institutions have praised the schemes, and they are setting a leading example to other developing nations. In 2005, Paul Wolfowitz (former president of the World Bank said, ‘Bolsa Familia has already become a highly praised model of effective social policy. Countries around the world are drawing lessons from Brazil’s experience and are trying to produce the same results for their own people’.

  2. Implementation of the Brazilian primary standard for x-rays

    International Nuclear Information System (INIS)

    Peixoto, J.G.P.; Almeida, C.E.V. de

    2002-01-01

    In the field of ionizing radiation metrology, a primary standard of a given physical quantity is essentially an experimental set-up which allows one to attribute a numerical value to a particular sample of that quantity in terms of a unit given by an abstract definition. The absolute measurement of the radiation quantity air kerma, is performed with a free-air ionization chamber. A great deal of research to determine the absolute measurement resulted in different designs for primary standard free-air ionization chambers such as cilindrics or plane parallel chambers. The implementation of primary standard dosimetry with free-air ionization chambers is limited to the National Metrology Institutes - NMIs. Since 1975, the Bureau International des Poids et Mesures - BIPM has been conducting comparisons of NMIs primary free-air standard chambers in the medium energy x-rays range. These comparisons are carried out indirectly through the calibration at both the BIPM and at the NMI of one or more transfer ionization chambers at a series of four reference radiation qualities. The scientific work programme of the National Laboratory for Ionizing Radiation Metrology - LNMRI of the Institute of Radioprotection and Dosimetry - IRD, which belongs to the National Commission of Nuclear Energy - CNEN, includes the establishment of a primary standard for x-rays of medium energy x-ray range. This activity is justified by the demand to calibrate periodically Brazilian network of the secondary standards without losing quality of the measurement. The LNMRI decided to implement four reference radiation qualities establishing the use of a transfer chamber calibrated at BIPM. The LNMRI decided to implement the primary standard dosimetry using a free-air ionization chamber with variable volume, made by Victoreen, model 480. Parameters related to the measurement of the quantity air kerma were evaluated, such as: air absorption, scattering inside the ionization chamber, saturation, beam

  3. Technology for manufacturing dispersion nuclear fuel at Instituto de Pesquisas Energeticas e Nucleares IPEN/CNEN-SP, Brazil

    International Nuclear Information System (INIS)

    Durazzo, M.; Carvalho, E.F. Urano de; Saliba-Silva, A.M.; Souza, J.A.B.; Riella, H.G.

    2008-01-01

    IPEN has been working for increasing radioisotope production in order to supply the expanding demand for radiopharmaceutical medicines requested by the Brazilian welfare. To reach this objective, the IEA-R1 research reactor power capacity was recently increased from 2 MW to 3.5 MW. Since 1988 IPEN has been manufacturing its own fuel element, initially based on U 3 O 8 -Al dispersion fuel plates with 2.3 g U/cm 3 . To support the reactor power increase, higher uranium density had to be achieved for better irradiation flux and also to minimize the irradiated fuel elements to be stored. Uranium silicide was the chosen option. This paper describes the results of this program and the current status of silicide fuel fabrication and qualification. (author)

  4. Life Expectancy of Brazilian Neurosurgeons.

    Science.gov (United States)

    Botelho, Ricardo Vieira; Jardim Miranda, Bárbara Cristina; Nishikuni, Koshiro; Waisberg, Jaques

    2018-06-01

    Life expectancy (LE) refers to the number of years that an individual is expected to survive. Emphasis is frequently placed on the relationship between LE and the conditions under which a population lives, but fewer studies have investigated the relationship between stress factors associated with specific professions and their effects on LE. The aim of this study is to evaluate Brazilian neurosurgeons' life expectancies (BNLEs) and compare them with those of physicians (both Brazilian and foreign) from other fields, as well as with Brazilian nondoctors. The Brazilian Society of Neurosurgery death registry was used to obtain data that compared LEs from non-neurosurgeon physicians, as described in the national and international literature. BNLEs were also compared with the LEs of Brazilian citizens. Fifty-one neurosurgeons died between 2009 and 2016. All were males. The mean age at death was 68.31 ± 17.71 years. Among all-cause mortality, the breakdown was 20% cardiovascular diseases, 39% malignancies, 10% external factors, 6% gastrointestinal disorders, 12% neurologic illnesses, and 14% unknown causes. BNLE was shorter than LE of male Brazilian citizens. LE was similar among neurosurgeons and other doctors but shorter compared with Brazilian citizens. Further research is needed to provide data that can add to and confirm these results. Copyright © 2018 Elsevier Inc. All rights reserved.

  5. Pharmacogenetics in the Brazilian population

    Directory of Open Access Journals (Sweden)

    Guilherme eSuarez-Kurtz

    2010-10-01

    Full Text Available Brazil is the 5th largest country in the world and its present population, in excess of 190 million, is highly heterogeneous, as a result of centuries of admixture between Amerindians, Europeans and Sub-Saharan Africans. The estimated individual proportions of biogeographical ancestry vary widely and continuously among Brazilians, most individuals - irrespective of self-identification as White, Brown or Black, the major categories of the Brazilian Census race/color system - having significant degrees of European and African ancestry, while a sizeable number display also Amerindian ancestry. These features have important pharmacogenetic (PGx implications: first, extrapolation of PGx data from relatively well-defined ethnic groups is clearly not applicable to the majority of Brazilians; second, the frequency distribution of polymorphisms in pharmacogenes (e.g. CYP3A5, CYP2C9, GSTM1, ABCB1, GSTM3, VKORC, etc varies continuously among Brazilians and is not captured by race/color self-identification; third, the intrinsic heterogeneity of the Brazilian population must be acknowledged in the design and interpretation of PGx studies in order to avoid spurious conclusions based on improper matching of study cohorts. The peculiarities of PGx in Brazilians are illustrated with data for different therapeutic groups, such as anticoagulants, HIV-protease inhibitors and nonsteroidal antinflammatory drugs, and the challenges and advantages created by population admixture for the study and implementation of PGx are discussed. PGx data for Amerindian groups and Brazilian-born, first generation Japanese are presented to illustrate the rich diversity of the Brazilian population. Finally, I introduce the reader to the Brazilian Pharmacogenetic Network or Refargen (www.refargen.org.br, a nationwide consortium of research groups, with the mission to provide leadership in PGx research and education in Brazil, with a population health impact.

  6. The rise of Brazilian agriculture

    DEFF Research Database (Denmark)

    Jensen, Hans Grinsted; Vink, Nick; Sandrey, Ron

    2014-01-01

    of Brazilian agricultural policies, namely farmer support, the research and technology transfer system and land issues. The implications for South African agriculture can be summarized as the recognition that history, geography, the development path and agricultural policies all matter. The article......The purpose of this article is to explore some of the possible lessons for South African agriculture from the Brazilian experience. To this end, the article discusses the performance of Brazilian agriculture in terms of land and labour use, production, and exports. This is followed by aspects...... then identifies five important lessons for agricultural development in South Africa....

  7. Comparison of low enriched uranium (UAlx-Al and U-Ni) targets with different geometries for the production of molybdenum-99 in the RMB (Brazilian multipurpose reactor)

    International Nuclear Information System (INIS)

    Domingos, Douglas B.; Silva, Antonio T. e; Joao, Thiago G.; Silva, Jose Eduardo R. da; Angelo, Gabriel; Fedorenko, Giuliana G.; Nishiyama, Pedro J.B. de O.

    2011-01-01

    The Brazilian Multipurpose Reactor (RMB), now in the conception design phase, is being designed in Brazil to attend the demand of radiopharmaceuticals in the country and conduct researches in various areas. The new reactor, planned for 30 MW, will replace the IEA-R1 reactor of IPEN-CNEN/SP. Low enriched uranium ( 235 U) UAl x dispersed in Al (plate geometry) and metallic uranium foil targets (plate and cylinder geometries) are being considered for production of Molybdenum-99 ( 99 Mo) by fission. Neutronic and thermal-hydraulics calculations were performed to compare the production of 99 Mo for these targets in the RMB. For the neutronic calculations were utilized the computer codes Hammer-Technion, Citation and Scale and for the thermal-hydraulics calculations were utilized the computer code MTRCR-IEAR1 and ANSYS CFX. (author)

  8. Radiation protection program applied to occupationally exposed individuals at the IPEN/CNEN-SP pilot plant in the 1980s for natural uranium compounds

    International Nuclear Information System (INIS)

    Silva, Teresinha de Moraes da; Sordi, Gian Maria A.A.; Vasques, Francisco Mário Feijó

    2017-01-01

    The work evidences the chemical processing of natural uranium from the yellowcake phase to the production of UF 6 natural uranium hexafluoride, a process carried out at the IPEN/CNEN-SP pilot plant. Radiation protection management was intended to monitor occupationally exposed individuals - IOEs, the workplace and the environment. An individual monitoring program for IOEs was developed for both external irradiation and incorporation of radioactive material. The IOEs were monitored externally with film-type dosimeters and the in vitro method was applied internally for urine analysis. For the workplace the monitoring program for equipment and floors was developed, determining the exposure rate from the process equipment, surface contamination expressed in Bq.cm -2 in equipment and floors, complemented by the air monitoring program both for the worker as well as for the workplace. Cellulose filters with aerodynamic diameter of 0.3 micron to 8.0 micron were used

  9. Radioprotection planned operation to deactivate an old fabrication plant of UO2 pellets in IPEN - CNEN/SP to perform decommissioning

    International Nuclear Information System (INIS)

    Sanchez Cambises, Paulo Brasil; Paiva, Julio Evangelista de; Almeida, Claudio C.; Silva, Teresinha M.; Rodrigues, Demerval L.

    2008-01-01

    In this work, the steps adopted in the operation planned for the deactivation and decommissioning of the previous plant (building 24), to manufacture the tablets of dioxide of Uranium of the Nuclear and Energy Research Institute, IPEN - CNEN/SP are shown, with decommissioning aims. This operation involved the planning, training the operators of the installation, radiometric analysis of the workstations and surveys for monitoring external radiation, contaminated surfaces and air contamination. The training involved the procedures for the manipulation of radioactive materials, decontamination of surfaces, segregation of materials and practical procedures for monitoring the individual surface body contamination, footwear and clothes. Procedures for the transport of radioactive materials had also been established, relative to the internal rules of the installation; provisory confinement of wastes; effluent, riddance of materials and finding areas free of contamination. (author)

  10. Radioprotection planned operation to deactivate an old fabrication plant of UO{sub 2} pellets in IPEN-CNEN/SP to perform decommissioning

    Energy Technology Data Exchange (ETDEWEB)

    Cambises, Paulo B.S.; Paiva, Julio Evangelista de; Almeida, Claudio C.; Silva, Teresinha M.; Rodrigues, Demerval L. [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)]. E-mails: cambises@ipen.br; jepaiva@ipen.br; calmeida@ipen.br; tmsilva@ipen.br; dlrodri@ipen.br

    2007-07-01

    In this work, the steps adopted in the operation planned for the deactivation of the previous plant (building 24), to manufacture the tablets of dioxide of Uranium of the Nuclear and Energy Research Institute, IPEN - CNEN/SP are shown, with decommissioning aims. This operation involved the planning, training the operators of the installation, radiometric analysis of the workstations and surveys for monitoring external radiation, contaminated surfaces and air contamination . The training involved the procedures for the manipulation of radioactive materials, decontamination of surfaces, segregation of materials and practical procedures for monitoring the individual surface body contamination, footwear and clothes. Procedures for the transport of radioactive materials had also been established, relative to the internal rules of the installation; provisory confinement of wastes; effluent, riddance of materials and finding areas free of contamination. (author)

  11. Radioprotection planned operation to deactivate an old fabrication plant of UO2 pellets in IPEN-CNEN/SP to perform decommissioning

    International Nuclear Information System (INIS)

    Cambises, Paulo B.S.; Paiva, Julio Evangelista de; Almeida, Claudio C.; Silva, Teresinha M.; Rodrigues, Demerval L.

    2007-01-01

    In this work, the steps adopted in the operation planned for the deactivation of the previous plant (building 24), to manufacture the tablets of dioxide of Uranium of the Nuclear and Energy Research Institute, IPEN - CNEN/SP are shown, with decommissioning aims. This operation involved the planning, training the operators of the installation, radiometric analysis of the workstations and surveys for monitoring external radiation, contaminated surfaces and air contamination . The training involved the procedures for the manipulation of radioactive materials, decontamination of surfaces, segregation of materials and practical procedures for monitoring the individual surface body contamination, footwear and clothes. Procedures for the transport of radioactive materials had also been established, relative to the internal rules of the installation; provisory confinement of wastes; effluent, riddance of materials and finding areas free of contamination. (author)

  12. Brazilian readers and contextual reference Brazilian readers and contextual reference

    Directory of Open Access Journals (Sweden)

    Lilia M. O. Carioni

    2008-04-01

    Full Text Available This article describes an experiment carried out using Brazilian university students at UFSC, the purpose being to check comprehension relationships between two types of contextual reference and two languages, Portuguese and English. A major stimulus for the research was the question: are Brazilian students' difficulties in reading English related more to English language difficulties or to difficulties in processing text in general?

  13. Study of social responsibility of the Nuclear and Energy Research Institute of Sao Paulo (IPEN/CNEN-SP); Estudo da responsabilidade social do Instituto de Pesquisas Energeticas e Nucleares de Sao Paulo (IPEN/CNEN-SP)

    Energy Technology Data Exchange (ETDEWEB)

    Mutarelli, Rita de Cassia

    2014-07-01

    Over the years, the socio-environmental concept has grown through programs, conferences and several activities that have been held in Brazil and worldwide. Sustainability and social responsibility are now an integral part of everyday life of organizations The Instituto de Pesquisas Energeticas e Nucleares (IPEN), which is the focus of this research, is committed to the improvement of Brazilian quality of life. Based on IPEN's mission, and due to the lack of tools for assessing socio-environmental actions, this research aims to propose an assessment tool for social responsibility, which may also be a methodological resource committed to the improvement of the Institute. Through indicators and dimensions, a methodology to assess social responsibility and identify both strengths and weaknesses was designed. The methodology was administered to IPEN, and the results demonstrated positive aspects regarding actions towards the internal publics and negative aspects towards the external publics that require improvement. The results obtained were satisfactory. Nevertheless, as the subject of this study is a broad theme, further studies are suggested. IPEN's board may use the results of this research as a tool to help them identify feasible socio-environmental actions to be implemented in the institute. (author)

  14. Study of social responsibility of the Nuclear and Energy Research Institute of Sao Paulo (IPEN/CNEN-SP)

    International Nuclear Information System (INIS)

    Mutarelli, Rita de Cassia

    2014-01-01

    Over the years, the socio-environmental concept has grown through programs, conferences and several activities that have been held in Brazil and worldwide. Sustainability and social responsibility are now an integral part of everyday life of organizations The Instituto de Pesquisas Energeticas e Nucleares (IPEN), which is the focus of this research, is committed to the improvement of Brazilian quality of life. Based on IPEN's mission, and due to the lack of tools for assessing socio-environmental actions, this research aims to propose an assessment tool for social responsibility, which may also be a methodological resource committed to the improvement of the Institute. Through indicators and dimensions, a methodology to assess social responsibility and identify both strengths and weaknesses was designed. The methodology was administered to IPEN, and the results demonstrated positive aspects regarding actions towards the internal publics and negative aspects towards the external publics that require improvement. The results obtained were satisfactory. Nevertheless, as the subject of this study is a broad theme, further studies are suggested. IPEN's board may use the results of this research as a tool to help them identify feasible socio-environmental actions to be implemented in the institute. (author)

  15. Program for in-pile qualification of high density silicide dispersion fuel at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Silva, Jose E.R. da; Silva, Antonio T. e; Terremoto, Luis A.A.; Durazzo, Michelangelo

    2009-01-01

    The development of high density nuclear fuel (U 3 Si 2 -Al) with 4,8 gU/cm 3 is on going at IPEN, at this time. This fuel has been considered to be utilized at the new Brazilian Multipurpose Reactor (RMB), planned to be constructed up to 2014. As Brazil does not have hot-cell facilities available for post-irradiation analysis, an alternative qualifying program for this fuel is proposed based on the same procedures used at IPEN since 1988 for qualifying its own U 3 O 8 -Al (1,9 and 2,3 gU/cm 3 ) and U 3 Si 2 -Al (3,0 gU/cm 3 ) dispersion fuels. The fuel miniplates and full-size fuel elements irradiations should be tested at IEA-R1 core. The fuel characterization along the irradiation time should be made by means of non-destructive methods, including periodical visual inspections with an underwater video camera system, sipping tests for fuel elements suspected of leakage, and underwater dimensional measurements for swelling evaluation, performed inside the reactor pool. This work presents the program description for the qualification of the high density nuclear fuel (U 3 Si 2 -Al) with 4,8 gU/cm 3 , and describes the IPEN fuel fabrication infrastructure and some basic features of the available systems for non-destructive tests at IEA-R1 research reactor. (author)

  16. Regulatory quality control in the metal and semi metal environmental monitoring program at IPEN/CNEN-SP

    International Nuclear Information System (INIS)

    Faustino, Mainara G.; Silva, Doulgas Batista; Monteiro, Lucilena R.; Dantas, Elizabeth S.K.; Pires, Maria Aparecida F.; Cotrim, Marycel E.B.

    2013-01-01

    The CONAMA's Resolution 430 recently published in May 13 th of 2011, that completes and modifies the Resolution 357/2005, defined new quality standards to perform liquid effluent monitoring essays in order to allow the release in the public sewer system. This Resolution has established that the essay laboratories must be certified by Brazilian National Metrology, Normalization and Industrial Quality Institute - INMETRO and also count with an implemented quality control system. Thereby this publication affected directly IPEN's Environmental Monitoring Program of Stables Chemical Compound (PMA-Q), performed since 2007. In this program, 20 parameters related to the metallic and non-metallic chemical elements content are monitored by using sensitive analytical techniques such as graphite furnace atomic absorption spectrometry - GF-AAS or inductively coupled plasma spectrometry - ICP-OES. Therefore this paper presents improvements to determine the laboratory individual performance performed by GF-AAS and ICP-OES. To achieve the legislation compliance for these parameters, the following actions were implemented: the construction of control charts (internal quality control) and the participation of the laboratory in interlaboratory proficiency tests (external quality control). These actions are presented and discussed with the results of elements such as Arsenic and Lead that are analyzed through GF-AAS as well as Chromium, Cooper, Zinc, Iron and Nickel, that are analyzed through ICP-OES. These actions of quality control allowed the continuous monitoring of laboratory performance, the identification and resolution of analytic problems and interlaboratory differences, provide additional confidence to monitoring program. (author)

  17. Proposal of a model for evaluation of research and development projects in a public scientific and technological institution: a survey in CNEN; Proposta de modelo de avaliacao de projetos de pesquisa e desenvolvimento em uma instituicao cientifica e tecnologica publica da area nuclear: um survey na CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Eduardo de Assumpcao

    2017-11-01

    Science and technology are directly related to the development of a country. The research and development projects in CNEN are financed by the direct resources of the budget of the Union and of the Development Agencies such as FINEP and CNPq. In general, project managers believe they can succeed when they complete a project on schedule, budget, and anticipated requirements, which is commonly known as a 'triple constraint' or 'iron triangle'. However, in the review of the literature, other criteria for evaluating success in projects, such as the benefits generated by society, the development of the team's capabilities, future opportunities, new technologies, among others, were verified. In this way, in order to assist the manager in the evaluation of this type of project, the present research carried out a review in the literature aiming to find concepts about success in projects and their evaluation criteria, proposed a model based on the theoretical reference and Importance and use of these criteria with the CNEN specialists, who work directly in the R and D projects of a public ICT in the nuclear area. The results showed that the criteria proposed in the model have a high degree of importance and show a decrease in the degree of utilization, suggesting that the criteria used in the model can help managers in the evaluation of these projects. (author)

  18. Assessing Brazilian educational inequalities

    Directory of Open Access Journals (Sweden)

    Benoit Lorel

    2008-03-01

    Full Text Available This paper provides an evaluation of schooling inequality in Brazil using different indicators such as the Education Gini coefficient, the Education Standard Deviation and the Average number of Years of Schooling. We draw up a statistical description of Brazilian human capital dispersion in time over the last half century, across regions and states. Our analysis suggests several conclusions: 1 Strong reduction of educational inequalities measured by Education Gini index. 2 A three parts picture of Brazil seems to emerge, reflecting initial conditions. 3 High increase of the Average number of Years of Schooling. 4 A significant link between Education Gini and the average education length. 5 Education Standard Deviation leads to inverted results compared to Education Gini. 6 Brazilian data are consistent with an Education Kuznets curve if we consider Education Standard Deviation.Esse trababalho busca avaliar o grau de desigualdade educacional no Brasil baseado-se em diferentes indicatores tais como: o índice de Gini educacional, os anos médios de escolaridade e no desvio padrão educacional. Tenta-se colocar uma descrição estatistica da distribuição do capital humano no Brasil, incluindo as diferenças estaduais e regionais observadas durante a ultima metade do século. As conclusões da nossa análise são as seguintes: 1 Forte reduç ão das desigualdades educativas calculadas com o Gini educacional. 2 Um retrato tripartido do Brasil parece se formar refletindo as condições iniciais. 3 Um forte aumento dos níveis de escolarização. 4 Uma relação significativa entre o Gini educacional e os anos médios de estudos. 5 O desvio padrão educacional leva aos resultados inversos do Gini educacional. 6 Os dados brasileiros admitem uma curva de Kuznets educacional se considerarmos o desvio padrão educacional.

  19. Nuclear knowledge portal to support licensing and control nuclear activities in the Brazilian Nuclear Energy Commission

    International Nuclear Information System (INIS)

    Gomes, Elizabeth; Braga, Fabiane

    2004-01-01

    importance of keeping the intellectual capital in the organizations that is to work with the knowledge from the collaborators. In Brazil still have many authors that discusses this concept and we adopt for this paper the definition form Cavalcanti where is the concept 'intellectual capital' refers either to the capacity, ability or experience, as well as to the formal education that the collaborators members have and add to the Organization. The 'intellectual capital' is an intangible asset, which belongs to the individual himself, thus it might be utilized by the organizations in order to generate value. The development and preservation of this intellectual capital is made through the implementation of forums of discussion, workshops or knowledge portals where the organization's collaborators share their experiences. Nevertheless, to assimilate and to develop the 'intellectual capital' does not add value to the organization: It is necessary to keep it. And one way to do so is to create desirable and encouraging work environments, to promote a sharing management and to offer programs of profits sharing. The objective of this paper is to describe how Brazilian Nuclear Energy Commission - CNEN has been developing a nuclear knowledge portal, focused in the Radiation and Safety Nuclear area. The Brazilian Nuclear Energy Commission (CNEN) is a federal autarchy created in October 10 of 1956, as a superior agency of planning, guiding, supervision and inspection in nuclear area being also the body entitled to establish standards and regulations on radiological protection, to issue licenses (permissions) and to survey and control the nuclear activities in Brazil. CNEN also develops researches related to the use of nuclear techniques in benefit of the society. The Radiation and Safety Nuclear directorate of CNEN acts, mainly, in the licensing of nuclear and radioactive installations. The people who work at this area recognize the importance of management and sharing the accumulated

  20. Sports Injuries in Brazilian Blind Footballers

    OpenAIRE

    Silva, MPME; Morato, MP; Bilzon, JLJ; Duarte, E

    2013-01-01

    The purpose of this study was to assess the characteristics and prevalence of sports-related injuries in visually disabled athletes of the Brazilian football 5-a-side team. The participants were 13 male athletes, all classified as B1 visual class, members of the Brazilian team, who played in five consecutive international competitions. Data were collected using the Brazilian Paralympic Committee and the Brazilian Confederation of Sports for the Blind report form. From the total of 13 athletes...

  1. Brazilian and Cape Verdian literatures for Afro-Brazilian learning

    Directory of Open Access Journals (Sweden)

    Norma Sueli Rosa Lima

    2016-12-01

    Full Text Available This article proposes to examine the dialogue between the literary produc-tions from Brazil and Cape Verde from the point of view of the role and representation of orality (Creole / Brazilian Portuguese, colonial and post-colonial perspectives and their cultural and ethnic specificities.---DOI: http://dx.doi.org/10.21881/abriluff.2016n17a385

  2. Radiation protection program applied to occupationally exposed individuals at the IPEN/CNEN-SP pilot plant in the 1980s for natural uranium compounds; Programa de radioproteção aplicado aos indivíduos ocupacionalmente expostos na usina piloto do IPEN-CNEN/SP na década de 80 para compostos de urânio natural

    Energy Technology Data Exchange (ETDEWEB)

    Silva, Teresinha de Moraes da; Sordi, Gian Maria A.A.; Vasques, Francisco Mário Feijó, E-mail: tmsilva@ipen.br [Instituto de Pesquisas Energéticas e Nucleares (IPEN/CNEN-SP), São Paulo, SP (Brazil)

    2017-07-01

    The work evidences the chemical processing of natural uranium from the yellowcake phase to the production of UF{sub 6} natural uranium hexafluoride, a process carried out at the IPEN/CNEN-SP pilot plant. Radiation protection management was intended to monitor occupationally exposed individuals - IOEs, the workplace and the environment. An individual monitoring program for IOEs was developed for both external irradiation and incorporation of radioactive material. The IOEs were monitored externally with film-type dosimeters and the in vitro method was applied internally for urine analysis. For the workplace the monitoring program for equipment and floors was developed, determining the exposure rate from the process equipment, surface contamination expressed in Bq.cm{sup -2} in equipment and floors, complemented by the air monitoring program both for the worker as well as for the workplace. Cellulose filters with aerodynamic diameter of 0.3 micron to 8.0 micron were used.

  3. O Processo de Avaliação de Estagiários da Comissão Nacional de Energia Nuclear - CNEN: focalizando seu instrumento

    Directory of Open Access Journals (Sweden)

    Regina Márcia Rocha Lidington

    2010-01-01

    Full Text Available O artigo apresenta o processo avaliativo e os resultados da avaliação do instrumento utilizado para a avaliação de estagiários da Comissão Nacional de Energia Nuclear - CNEN, denominado Avaliação do Estágio pelo Supervisor. A avaliação se concentrou na definição dos cinco Conceitos utilizados para avaliar os nove Aspectos que compõem o instrumento, buscando estabelecer Padrões capazes de minimizar o efeito das interferências subjetivas capazes de comprometer a avaliação do estagiário. Foram utilizadas as abordagens Centrada nos Consumidores, Centrada em Especialistas e Responsiva. Participaram do processo avaliativo os três públicos interessados: Ex-estagiários, Orientadores/Supervisores de Estágio e profissionais da área de Recursos Humanos que atuam no gerenciamento do Programa de Estágios, na Instituição. Os resultados do estudo englobam sugestões de ordem quantitativa e qualitativa para cada um dos Padrões propostos no instrumento.

  4. Two-faces stationary irradiation method and dosimetric considerations for radiation processing at the multipurpose gamma irradiation facility / IPEN-CNEN

    International Nuclear Information System (INIS)

    Santos, Paulo S.; Vasquez, Pablo A.S.

    2015-01-01

    Over the last ten years, the Multipurpose Gamma Irradiation Facility of the Nuclear and Energy Research Institute - IPEN/CNEN located inside the Sao Paulo University campus has been providing services on radiation processing, especially for sterilization of health care and disposable medical products as well as support to research studies on modification of physical, chemical and biological properties of several materials. Placed at the same campus operates an extremely important radiopharmaceutical production facility when almost all disposable supplies used to produce medical products as the technetium-99m are continuously sterilized by gamma radiation. Many university biomedical research laboratories specially those working with equipment for cell cultures and vaccine production also make use of the gamma sterilization. Animal feed and shavings used by certified bioteries are routinely disinfected. Alternative underwater irradiation methods were developed to meet the demand of gemstone color enhancement. Human tissues including bone, skin, amniotic membranes, tendons, and cartilage belonging to National Banks are usually irradiated too. Different kind of polymers, hydrogels, foods as well native fruits, have been irradiated in this facility. Cultural heritage objects as books, paintings and furniture are disinfected routinely by gamma radiation. The success of the implementation of radiation processing in this facility is due to research and development of irradiation and dosimetry methods suitable for each condition. In this work are presented some considerations about the distribution dose and the two-faces stationary irradiation method developed and validated for this facility. (author)

  5. Immunoradiometric assay for the determination of E. coli proteins in recombinant dna derived human growth hormone produced at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Soares, Carlos R.J.

    1995-01-01

    An immunoradiometric assay (IRMA) for the determination of multiple antigens was set up in order to quantify E. coli (ECP) in lots of purified recombinant human growth hormone (rec-hGH). SDS-PAGE and Western Blotting techniques were carried out, in parallel, to confirm the results obtained by IRMA and to provide more information about the contaminants. Anti-ECP antibodies were obtained by rabbit immunization with ECP, which were submitted to the same purification process utilized for rec-hGH with the exception of the last step. A strain-process-specific assay was thus set up. The antiserum obtained was purified through an affinity column prepared with the same ECP used for immunization, this provided an highly sensitive assay (0,03 ng ECP/mL). This IRMA was shown to be specific, not presenting any cross reaction with hGH and studies carried out on precision, accuracy and linearity of response with dilution confirmed its validity as one of the fundamental purity tests for rec-hGH produced at IPEN-CNEN/SP, whose principles can be easily extended to the analysis of other similar products. These studies have also shown that the utilization of an affinity column, prepared with the described anti-ECP antiserum was very effective, providing rec-hGH lots with less then 10 parts per million (0,001%) of contaminating proteins. (author). 45 refs., 15 figs., 11 tabs

  6. Two-faces stationary irradiation method and dosimetric considerations for radiation processing at the multipurpose gamma irradiation facility / IPEN-CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Santos, Paulo S.; Vasquez, Pablo A.S., E-mail: psantos@ipen.br, E-mail: pavsalva@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2015-07-01

    Over the last ten years, the Multipurpose Gamma Irradiation Facility of the Nuclear and Energy Research Institute - IPEN/CNEN located inside the Sao Paulo University campus has been providing services on radiation processing, especially for sterilization of health care and disposable medical products as well as support to research studies on modification of physical, chemical and biological properties of several materials. Placed at the same campus operates an extremely important radiopharmaceutical production facility when almost all disposable supplies used to produce medical products as the technetium-99m are continuously sterilized by gamma radiation. Many university biomedical research laboratories specially those working with equipment for cell cultures and vaccine production also make use of the gamma sterilization. Animal feed and shavings used by certified bioteries are routinely disinfected. Alternative underwater irradiation methods were developed to meet the demand of gemstone color enhancement. Human tissues including bone, skin, amniotic membranes, tendons, and cartilage belonging to National Banks are usually irradiated too. Different kind of polymers, hydrogels, foods as well native fruits, have been irradiated in this facility. Cultural heritage objects as books, paintings and furniture are disinfected routinely by gamma radiation. The success of the implementation of radiation processing in this facility is due to research and development of irradiation and dosimetry methods suitable for each condition. In this work are presented some considerations about the distribution dose and the two-faces stationary irradiation method developed and validated for this facility. (author)

  7. A new {sup 124}Xe irradiation system for {sup 123}I routine production at the 30 MeV IPEN-CNEN/SP cyclotron

    Energy Technology Data Exchange (ETDEWEB)

    Lapolli, André L.; Barcellos, Henrique; Matsuda, Hylton; Sumiya, Luiz C. do A.; Junqueira, Fernando de C., E-mail: alapolli@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2017-11-01

    Since 2001 the Nuclear and Energy Research Institute (IPEN/CNEN-SP, Brazil) has produced about 2.5 mCi/μAh of {sup 123}I weekly using a manual irradiation system fully developed by its researchers. Ultrapure {sup 123}I has been produced and distributed to hospitals and clinics where several diagnostic imaging procedures are done for thyroid, brain and cardiovascular functions. Due to the short half-life and emission of low-energy photons, this radioisotope becomes suitable for diagnosis in children. Currently IPEN researchers are involved in the development of a new fully automated irradiation system dedicated to {sup 123}I routine production employing enriched xenon gas ({sup 124}Xe) as the target material. This new system consists of a target port, a water and a helium cooling system, a cryogenic system, an electric power system, a control and process monitoring unit composed of a supervisory software connected to a Programmable Logic Controller (PLC) via personal computer. In this new concept, there is no need for human interference during radioisotope production, reducing the possibility of eventual failures or incidents involving radioactive material. In this way, with this new system, a specific yield of approximately 3.5 mCi/μAh per irradiation is expected and this will meet a large part of the national demand for this important radioisotope. In the present work will be presented all the technical and constructive aspects of this new system as well as the results obtained in the irradiation of tests. (author)

  8. Optimization of radiation protection for an electron accelerator used in paint cure in films approved by Brazilian Nuclear Energy Commission - CNEN, Rio de Janeiro, Brazil; Otimizacao da radioprotecao para um acelerador de eletrons usado em cura de tinta em filmes aprovado pela CNEN

    Energy Technology Data Exchange (ETDEWEB)

    Rios, Denise A. da S.; Sordi, Gian Maria A.A., E-mail: denise@inovafi.com.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2014-07-01

    This study aims to evaluate the radiological protection system in an installation where there is a self-shielded accelerator Category I, used for paint curing in polymer films, in order to optimize it in situations in which it is appropriate. For this a radiometric survey was conducted in the designated areas to check rate doses at different distances from the radiation focus, in which there is a possibility of presence or persons which can reliably detect any abnormality in the accelerator operation. The comparison of the obtained values related to the accelerator operating current with the natural background radiation showed that they are compatible, signaling that the principle of optimization is already being followed.

  9. Trace elements in brazilian soils

    International Nuclear Information System (INIS)

    Rocha, Geraldo Cesar

    1995-01-01

    A literature revision on trace elements (Zn, B, Mn, Mo, Cu, Fe, and Cl) in Brazilian soils was prepared, with special attention to the chemical form and range in the soil, extraction methods and correlation of the amount in soils with soil properties

  10. BRAZILIAN EXPORTS OF MANUFACTURED WOOD

    Directory of Open Access Journals (Sweden)

    Rafael de Azevedo Calderon

    2010-08-01

    Full Text Available The present work deals with the Brazilian exports of sawnwood of non-coniferous, veneer sheets and plywood, from 1961 to 2002. The data regarding the three studied products, sawnwood of non-coniferous, veneer sheets and plywood, were joined through the method of Fisher so that an econometric evaluation of the market of the three products could be carried out. Supply and demand models of the Brazilian exports were specified. The results were satisfactory and they match with the literature. The supply of exports presented a positive answer in relation to the exporter's remuneration, to the production, to the use of the installed capacity (cycles of domestic economical activity and to the tendency, and negative in relation to the internal demand. The demand for the Brazilian exports was influenced positively by the world income, participation index and tendency, and negatively for the relative price. The low elasticity-price of the found demand can have implications in the conservation of the Brazilian forest resources because the exporters can increase the prices, reduce the amounts and still increase the incomes.

  11. The Brazilian sugarcane innovation system

    International Nuclear Information System (INIS)

    Tosi Furtado, Andre; Gaya Scandiffio, Mirna Ivonne; Barbosa Cortez, Luis Augusto

    2011-01-01

    Ethanol has recently been of great interest worldwide because it is a viable economic alternative to petroleum products and it is a renewable source of energy that mitigates the emission of greenhouse gases. Brazilian bioethanol from sugarcane is the most successful case at the world level because of its low cost and low level of greenhouse gas emissions. Brazil's success with sugarcane cannot be understood as based solely on a natural comparative advantage, but as a result of efforts that culminated in a positive trajectory of technological learning, relying mostly on incremental innovations. The purpose of this article is to analyze the key aspects of the innovation system built around the Brazilian sugarcane industry. It is based on the national innovation systems approach according to which innovation results from the interaction of different institutional actors. Institutional arrangements are analyzed as the basis for the innovative process, in particular R and D and the innovation policies and strategies of the main players in the sugarcane sector, including sugar and ethanol mills, industrial goods suppliers, public and private research institutions, and governmental agencies. - Research Highlights: → The Brazilian success in bioethanol is due to the sugarcane innovation system. → Private funds for R and D became central after IAA closure. → Nowadays Brazilian innovation system is transforming to keep its leadership. → Public funds for research in the second generation bioethanol.

  12. Deforestation in the Brazilian Amazon

    NARCIS (Netherlands)

    Boekhout van Solinge, T.|info:eu-repo/dai/nl/156696207

    2015-01-01

    This essay takes a (green) criminological and multidisciplinary perspective on deforestation in the Brazilian Amazon, by focusing on the crimes and damages that are associated with Amazonian deforestation. The analysis and results are partly based on longer ethnographic stays in North Brazil (Amazon

  13. Comparison of low enriched uranium (UAl{sub x}-Al and U-Ni) targets with different geometries for the production of molybdenum-99 in the RMB (Brazilian multipurpose reactor)

    Energy Technology Data Exchange (ETDEWEB)

    Domingos, Douglas B.; Silva, Antonio T. e; Joao, Thiago G.; Silva, Jose Eduardo R. da; Angelo, Gabriel; Fedorenko, Giuliana G., E-mail: teixeira@ipen.b [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil); Nishiyama, Pedro J.B. de O., E-mail: pedro.julio@ctmsp.mar.mil.b [Centro Tecnologico da Marinha em Sao Paulo (CTMSP), Sao Paulo, SP (Brazil)

    2011-07-01

    The Brazilian Multipurpose Reactor (RMB), now in the conception design phase, is being designed in Brazil to attend the demand of radiopharmaceuticals in the country and conduct researches in various areas. The new reactor, planned for 30 MW, will replace the IEA-R1 reactor of IPEN-CNEN/SP. Low enriched uranium (<20% {sup 235}U) UAl{sub x} dispersed in Al (plate geometry) and metallic uranium foil targets (plate and cylinder geometries) are being considered for production of Molybdenum-99 ({sup 99}Mo) by fission. Neutronic and thermal-hydraulics calculations were performed to compare the production of {sup 99}Mo for these targets in the RMB. For the neutronic calculations were utilized the computer codes Hammer-Technion, Citation and Scale and for the thermal-hydraulics calculations were utilized the computer code MTRCR-IEAR1 and ANSYS CFX. (author)

  14. Comparison of activity measurements of the {sup 67}Ga and {sup 123}I at Brazilian nuclear medicine services; Comparacao das medicoes de atividade do {sup 67}Ga e {sup 123}I em servicos de medicina nuclear brasileiros

    Energy Technology Data Exchange (ETDEWEB)

    Santos, J.A. dos; Silva, M.A.L. da; Lopes, R.T. [Universidade Federal do Rio de Janeiro (UFRJ), RJ (Brazil). Coordenacao dos Programas de Pos-Graduacao de Engenharia (COPPE)], e-mail: joyra@ird.gov.br, e-mail: leobino@ird.gov.br, e-mail: ricardo@lin.ufrj.br; Iwahara, A.; Oliveira, A.E. de; Tauhata, L. [Instituto de Radioprotecao e Dosimetria (IRD/CNEN-RJ), Rio de Janeiro, RJ (Brazil). Lab. Nacional de Metrologia das Radiacoes Ionizantes (LNMRI)], e-mail: iwahara@ird.gov.br, e-mail: aedu@ird.gov.br, e-mail: tauhata@ird.gov.br

    2003-07-01

    Since 1998, the National Laboratory for Ionizing Radiations (LNMRI), of Institute for Radioprotection and Dosimetry, belonging to the Brazilian Commission for Nuclear Energy (IRD/CNEN), is conducting a comparison program for the measurements of radiopharmaceutical activities applied to to patients at the nuclear medicine sector, viewing to assessment the quality of that measurements. This work presents the results of three comparison rounds using the {sup 67}Ga and {sup 123}I, establishing the metrological tracking of the calibrators used by the participants. The results were analysed under the the viewpoint of the conformal with the regulatory authority and show that those comparisons are necessary to improve the quality of radiopharmaceutical measurement activities, identify failures on the equipment and technical procedures used by the nuclear medicine services all over the country.

  15. Quality control studies of 99Mo used in 99Mo/99mTc generators produced at IPEN/CNEN-SP, Brazil

    International Nuclear Information System (INIS)

    Said, Daphne S.; Brambilla, Tania P.; Matsuda, Margareth M.N.; Osso Junior, Joao A.

    2015-01-01

    99m Tc is the most used radionuclide in nuclear medicine. In Brazil, the 99 Mo/ 99m Tc generators are produced exclusively by the Center of Radiopharmacy at IPEN-CNEN/SP, by importing 99 Mo from different suppliers. 99 Mo (t 1/2 = 66 h) is a fission product of 235 U, therefore, it can be accompanied by several radioisotopes that are highly prejudicial for human health, demanding a strict quality control of this product for generators safe use. The European Pharmacopoeia established some parameters and limits that evaluate the quality of the solution of sodium [ 99 Mo]molybdate, that is used as raw material for generator's production. The European Pharmacopoeia also recommends some analytical methods to perform these evaluations, however, it has been observed difficulties on the implementation of these methods by the generator's producers. These difficulties are probably related to the lack of practicability of the proposed methods and the extensive list of utilized reagents. In this work some procedures of the European Pharmacopoeia's quality control method for 99 Mo were evaluated. Different types of solid phase exchanger cartridges were tested for retention of 99 Mo in 3 different conditions. Cartridges that presented percentages of retention higher than 90% were also tested for separation of 99 Mo from possible contaminants (Ru e Te). The results shown that solid phase exchanger cartridges that presented percentages of retention of Mo higher than 90% also presented significant percentages of retention of Ru and Te. An alternative method for separation of 99 Mo from 131 I (other contaminant) are also proposed. (author)

  16. Quality control studies of {sup 99}Mo used in {sup 99}Mo/{sup 99m}Tc generators produced at IPEN/CNEN-SP, Brazil

    Energy Technology Data Exchange (ETDEWEB)

    Said, Daphne S.; Brambilla, Tania P.; Matsuda, Margareth M.N.; Osso Junior, Joao A., E-mail: daphnesaid@usp.br, E-mail: taniabrambilla@yahoo.com.br, E-mail: mmatsuda@ipen.br, E-mail: jaosso@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2015-07-01

    {sup 99m}Tc is the most used radionuclide in nuclear medicine. In Brazil, the {sup 99}Mo/{sup 99m}Tc generators are produced exclusively by the Center of Radiopharmacy at IPEN-CNEN/SP, by importing {sup 99}Mo from different suppliers. {sup 99}Mo (t{sub 1/2} = 66 h) is a fission product of {sup 235}U, therefore, it can be accompanied by several radioisotopes that are highly prejudicial for human health, demanding a strict quality control of this product for generators safe use. The European Pharmacopoeia established some parameters and limits that evaluate the quality of the solution of sodium [{sup 99}Mo]molybdate, that is used as raw material for generator's production. The European Pharmacopoeia also recommends some analytical methods to perform these evaluations, however, it has been observed difficulties on the implementation of these methods by the generator's producers. These difficulties are probably related to the lack of practicability of the proposed methods and the extensive list of utilized reagents. In this work some procedures of the European Pharmacopoeia's quality control method for {sup 99}Mo were evaluated. Different types of solid phase exchanger cartridges were tested for retention of {sup 99}Mo in 3 different conditions. Cartridges that presented percentages of retention higher than 90% were also tested for separation of {sup 99}Mo from possible contaminants (Ru e Te). The results shown that solid phase exchanger cartridges that presented percentages of retention of Mo higher than 90% also presented significant percentages of retention of Ru and Te. An alternative method for separation of {sup 99}Mo from {sup 131}I (other contaminant) are also proposed. (author)

  17. A new "1"2"4Xe irradiation system for "1"2"3I routine production at the 30 MeV IPEN-CNEN/SP cyclotron

    International Nuclear Information System (INIS)

    Lapolli, André L.; Barcellos, Henrique; Matsuda, Hylton; Sumiya, Luiz C. do A.; Junqueira, Fernando de C.

    2017-01-01

    Since 2001 the Nuclear and Energy Research Institute (IPEN/CNEN-SP, Brazil) has produced about 2.5 mCi/μAh of "1"2"3I weekly using a manual irradiation system fully developed by its researchers. Ultrapure "1"2"3I has been produced and distributed to hospitals and clinics where several diagnostic imaging procedures are done for thyroid, brain and cardiovascular functions. Due to the short half-life and emission of low-energy photons, this radioisotope becomes suitable for diagnosis in children. Currently IPEN researchers are involved in the development of a new fully automated irradiation system dedicated to "1"2"3I routine production employing enriched xenon gas ("1"2"4Xe) as the target material. This new system consists of a target port, a water and a helium cooling system, a cryogenic system, an electric power system, a control and process monitoring unit composed of a supervisory software connected to a Programmable Logic Controller (PLC) via personal computer. In this new concept, there is no need for human interference during radioisotope production, reducing the possibility of eventual failures or incidents involving radioactive material. In this way, with this new system, a specific yield of approximately 3.5 mCi/μAh per irradiation is expected and this will meet a large part of the national demand for this important radioisotope. In the present work will be presented all the technical and constructive aspects of this new system as well as the results obtained in the irradiation of tests. (author)

  18. Efficiency Determinants in Brazilian Football Clubs

    OpenAIRE

    Marcelo Machado de Freitas; Rafael Araújo Sousa Farias; Leonardo Flach

    2017-01-01

    The aim of this study is to analyze the efficiency of Brazilian football clubs in generating revenues and the reasons behind it. To achieve this goal, we applied quantitative methods including Data Envelopment Analysis and Tobit regression modeling to data on the best clubs from 2012 to 2014, according to the Brazilian Football Confederation ranking. The results allowed for the inference that the largest Brazilian clubs, such as Grêmio (RS), Palmeiras (SP) and Vasco (RJ), were not efficie...

  19. Chinese Competition and Brazilian Exports of Manufactures

    OpenAIRE

    Jenkins, Rhys

    2014-01-01

    In recent years concerns have been raised over the impact of Chinese competition on Latin American exports, particularly those from Mexico. This article shows that Brazilian manufactured exports too have been negatively affected, and that this has been reflected in the “primarization” of Brazilian exports and a declining share in the import markets of its major customers. A variety of different indicators were used to analyse the extent to which Brazilian exports have faced competition from C...

  20. Alternative fuels: a Brazilian outlook

    International Nuclear Information System (INIS)

    Moreira, J.R.; Serra, G.E.

    1990-01-01

    This paper focuses on studies and information related to the use of alternative fuels in Brazil. The first part of this paper deals with the economics of different biomass technologies. The analysis consists of a careful costing of all operations involved. The study deals with wood, sugar cane and cassava, since these crops are exploited for commercial purposes in Brazil. Corn, although a useful raw material for producing ethanol in the United States, is not used for this purpose in Brazil. The second part deals with the industrial technologies used to convert biomass into energy. We consider several forms of energy derived from biomass and evaluate the economics of the processes. When opportune, we compare costs with those of the North American market. Market analysis and displacement of conventional energy are the subject of the third part of the paper. While the cost of each product is evaluated in most cases; in others the current market price is used. Finally, we raise the issues of institutional problems and planning and offer some conclusions on the future of biomass as an alternative energy source. The technological discussion in this paper is based on the Brazilian experience in producing ethanol and other fuels from biomass. It is possible to extrapolate the Brazilian experience to other developing countries. The observations made in this chapter are based on the conditions prevalent in the Brazilian south-central agricultural region, specifically the state of Sao Paulo. (author). 91 refs., 16 figs., 11 tabs

  1. Brazilian Studies Then and Now

    Directory of Open Access Journals (Sweden)

    Anthony Pereira

    2012-09-01

    Full Text Available In 1912 the Brazilian diplomat and scholar Manuel de Oliveira Lima gave six lectures at Stanford University that encapsulated his views of what we now call Brazilian Studies. This article summarizes Oliveira Lima’s lectures. It then points out three aspects of Oliveira Lima’s worldview that are problematic from the perspective of the twenty-first century: his Eurocentrism; the unproblematic nature of the nation-state in his thinking; and his largely negative view of Brazil’s racial heritage. The third part of the essay analyzes three aspects of Oliveira Lima’s lectures that are still contemporary. These are the need to establish an adequate comparative context for the study of Brazil; the difficulty of justifying an academic discipline that revolves around the study of a single country; and the challenge of uniting disparate and specialized disciplines in order to appreciate Brazil’s complexity and trajectory in the modern world. In the conclusion, some guidelines for maintaining Brazilian Studies as a vibrant field are suggested.

  2. Elaboration of a questionnaire for establishment of the Brazilian inventory of low and intermediate level radioactive waste

    International Nuclear Information System (INIS)

    Calabria, Jaqueline A.A.; Silva, Fabio; Taddei, Maria Helena T.

    2013-01-01

    Since 2008, Brazilian Commission for Nuclear Energy, CNEN, has been working in the Project of Repository for Low and Intermediate Level Radioactive Wastes, (RBMN Project) and the Centre for Development of Nuclear Technology (CDTN) is responsible for the technical coordination of this project. Among activities under development, the survey of National radwaste inventory must be firstly concluded since it is a requirement for the project cost estimation. Hence, an electronic questionnaire was created to collect all information necessary to obtain the volume of the treated and non-treated waste, presently stored in Brazil. This questionnaire was elaborated after survey of the possible characteristics of radioactive waste generated in nuclear and radioactive facilities and it will be available online only for registered users. The information gathered with this questionnaire was related only with the amount of radioactive waste and some generic characteristics, the isotopic inventory will be performed in future. The objective of this work is to present this form and its creation process. (author)

  3. The use of kragten spreadsheets for uncertainty evaluation of uranium potentiometric analysis by the Brazilian Safeguards Laboratory

    International Nuclear Information System (INIS)

    Silva, Jose Wanderley S. da; Barros, Pedro Dionisio de; Araujo, Radier Mario S. de

    2009-01-01

    In safeguards, independent analysis of uranium content and enrichment of nuclear materials to verify operator's declarations is an important tool to evaluate the accountability system applied by nuclear installations. This determination may be performed by nondestructive (NDA) methods, generally done in the field using portable radiation detection systems, or destructive (DA) methods by chemical analysis when more accurate and precise results are necessary. Samples for DA analysis are collected by inspectors during safeguards inspections and sent to Safeguards Laboratory (LASAL) of the Brazilian Nuclear Energy Commission - (CNEN), where the analysis take place. The method used by LASAL for determination of uranium in different physical and chemical forms is the Davies and Gray/NBL using an automatic potentiometric titrator, which performs the titration of uranium IV by a standard solution of K 2 Cr 2 O 7 . Uncertainty budgets have been determined based on the concepts of the ISO 'Guide to the Expression of Uncertainty in Measurement' (GUM). In order to simplify the calculation of the uncertainty, a computational tool named Kragten Spreadsheet was used. Such spreadsheet uses the concepts established by the GUM and provides results that numerically approximates to those obtained by propagation of uncertainty with analytically determined sensitivity coefficients. The main parameters (input quantities) interfering on the uncertainty were studied. In order to evaluate their contribution in the final uncertainty, the uncertainties of all steps of the analytical method were estimated and compiled. (author)

  4. Elaboration of a questionnaire for establishment of the Brazilian inventory of low and intermediate level radioactive waste

    Energy Technology Data Exchange (ETDEWEB)

    Calabria, Jaqueline A.A.; Silva, Fabio, E-mail: jaalmeida@cdtn.br, E-mail: silvaf@cdtn.br [Centro de Desenvolvimento da Tecnologia Nuclear (CDTN/CNEN-MG), Belo Horizonte, MG (Brazil); Taddei, Maria Helena T., E-mail: mhtaddei@cnen.gov.br [Comissao Nacional de Energia Nuclear (LAPOC/CNEN), Pocos de Caldas, MG (Brazil). Laboratorio de Pocos de Caldas; Marumo, Julio T., E-mail: jtmarumo@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2013-07-01

    Since 2008, Brazilian Commission for Nuclear Energy, CNEN, has been working in the Project of Repository for Low and Intermediate Level Radioactive Wastes, (RBMN Project) and the Centre for Development of Nuclear Technology (CDTN) is responsible for the technical coordination of this project. Among activities under development, the survey of National radwaste inventory must be firstly concluded since it is a requirement for the project cost estimation. Hence, an electronic questionnaire was created to collect all information necessary to obtain the volume of the treated and non-treated waste, presently stored in Brazil. This questionnaire was elaborated after survey of the possible characteristics of radioactive waste generated in nuclear and radioactive facilities and it will be available online only for registered users. The information gathered with this questionnaire was related only with the amount of radioactive waste and some generic characteristics, the isotopic inventory will be performed in future. The objective of this work is to present this form and its creation process. (author)

  5. Development of the Brazilian national sheet scintillator converter of neutron; Desenvolvimento de uma tela cintiladora nacional conversora de neutrons

    Energy Technology Data Exchange (ETDEWEB)

    Barbosa, Andre Luis Nunes

    2008-03-15

    Both the national domain of the technology for the separation of rare earth elements and the large reserves of these minerals in Brazilian territory, motivated the study of national sheets scintillators converter of neutrons, using a granular mixture Gd{sub 2}O{sub 3}-Zn S:Ag. Three methodologies were used for the manufacture of such sheets, namely: deposition done with a compressed-air gun on a sheet of cellulose type CG3460-3M; fusion of granular mixture with EVA in the mixing chamber and deposition of granular mixture on the substrate of EVA. It was used the flux of the order of 4,46 x 10{sup 5} neutrons thermic/cm{sup 2}.s, coming from the channel irradiation, J-9, of the reactor Argonauta/IEN/CNEN and the radiographic film AA-400 Kodak Industrex. The performances of national scintillator neutrons converter sheets were analyzed and the images obtained with the, demonstrated that the methodologies proposed are technically feasible and can contribute to the reduction of cost of this technique for NDA, but which lack optimization is aimed at increasing the number of photons of light to allow its use in neutrongraphies in Real Time (NRTR). (author)

  6. Individual performance evaluation of the Brazilian Nuclear Energy Commission (CNEN): a meta-evaluative study; Avaliação de desempenho individual da Comissão Nacional de Energia Nuclear: um estudo meta-avaliativo

    Energy Technology Data Exchange (ETDEWEB)

    Bezerra, Leonardo Ferreira

    2017-07-01

    The present study is a summative meta-evaluation that had as objective to evaluate the quality of the process of evaluation of individual performance of the servers of the National Commission of Nuclear Energy, being guided by the scientific curiosity to know to what extent the evaluation of performance the National Commission for Nuclear Energy meets the quality standards disseminated by the Joint Committee on Standards for Educational Evaluation. The methodology chosen to be used was based on the management approach and had as a guiding principle of the study the elaboration of a framework of criteria considering the aforementioned standards. The criteria established in the criteria framework guided the preparation of the items of the questionnaire sent to the National Commission of Nuclear Energy servers. In addition to the questionnaire, the observation of this author was considered in the context where the phenomenon occurred, which allowed a better reflective analysis of the data collected by the questionnaire. Regarding the results, it can be inferred that the performance evaluation developed at the National Commission of Nuclear Energy can be considered of quality, highlighting the servers' trust for the data, the communication process of the program stages, the credibility of the evaluators, the process of negotiation of goals and adaptability of the instrument over the course of the cycle. However, there are some opportunities for improvement, considering the relevance of evaluation as a tool to improve the performance of the autarchy's servers. Among the points that need to be improved is that there is currently a lack of knowledge about the legal basis and justification of the process of evaluation process by the servers and the lack of clarity regarding the content of the final evaluation report. Among the recommendations of this study, one can consider as the most relevant the need to: disseminate the results of this meta-evaluation to the servers; promotion of meetings to raise awareness of the importance of evaluation, explaining its legal basis, justifications; and qualification of the National Commission of Nuclear Energy people management area evaluators in order to pass them through specialization processes in the field of individual performance appraisal. (author)

  7. Competitiveness in the Brazilian oil industry. The Brazilian 'oil diamond'

    International Nuclear Information System (INIS)

    Zamith, R.; Moutinho Dos Santos, E.

    2000-01-01

    It is recognized the economic benefits that might follow the opening process of the Brazilian oil and natural gas industry, which shall experience a fast expansion with the arrival of national and international private investors. However, we should not neglect the broader impact of this process on the future development of all that cluster of national agents that lived around and served the former national oil monopoly, managed by the Brazilian National Oil Company, Petrobras. This work focuses on this larger perspective, discussing about the capacity of Brazil to sustain and expand its competitiveness in the oil business as well as to obtain the maximum economic development from the exploration of its oil and gas reserves. We adopt the work of Michael Porter, from the University of Harvard, about the Competitive Advantage of Nations, as a theoretical model to analyze the Competitive Advantage of Brazil in the global oil industry. By introducing the concept of ''oil diamond'', adapted from the notion introduced by this author, we develop a new understanding of national competitiveness in the oil sector. In this paper, we present the general model as well as a brief characterization of the results found for Brazil Subsequently, we focus on just one leg of the model, for which we discuss, with more detail, about the competitive condition of the country in the opening-up scenario. This leg regards the so-called supporting and supplementary industries that constitute what is denominated in the French tradition the ''para petroleum'' industry. We analyze the conditions for the Brazilian domestic ''para petroleum industry'' to survive and grow in the new competitive environment. (authors)

  8. The Brazilian nuclear industries - INB - in the field of the rare earth

    International Nuclear Information System (INIS)

    Blatt, Victoria

    1996-01-01

    The Brazilian Nuclear Industries - INB is responsible for the execution of part of the cycle of uranium as nuclear reactor fuel for alternative energy generation. Soon INB shall increase the participation in this cycle, through the implantation of the line of powder and pastille. INB is also the successor of the monazite processing industries. The last one was NUCLEMON that was incorporated by INB. The connection of INB with this area is due to the presence of the strategic elements uranium and thorium in the monazite. The know-how was and continues to be developed by a chemical team of the National Commission of Nuclear Energy (CNEN) with the collaboration of the technical team of INB. The ever wider applications of the individual Rare Earth in the most different fields of the electrical, electronics, communication, optical, metallurgical, catalysis and other industries, as well as INB incessant inquire for the economical workability, brought INB to appraise the position regarding to the industrial production of the Rare Earth. The choice is bringing to the separation and commercialization of the individual elements and/or in groups containing a reduced number of Rare Earth, instead of the production and commercialization of the mixture of monazitic Rare Earth. This paper illustrates through quantitative information some aspects regarding to reserves, mining and physical separations of the monazite, as well as projections about INB resuming its industrial activities with insertion of technical improvements in both, the chemical treatment of the monazite and the Rare Earth separation. In this field, there will be presented in this paper the qualitative and quantitative results recently reached in a large dimension pilot plant. These results add to the technical conquest reached in the late years by the foregoers of INB, and that will be also presented. The paper contains also some appreciations regarding to the perspectives of INB's ingression in the field of

  9. Brazilian Studies and Brazilianists: Conceptual remarks

    Directory of Open Access Journals (Sweden)

    Vinicius Mariano de Carvalho

    2017-01-01

    Full Text Available This article discusses the concept of Brazilian Studies. It does not intend to outline a defence for a new discipline, or to propose paradigms for that elusive field called ‘area studies’. It will, bring some reflections on epistemological and methodological issues realted to what it is been called Brazilian Studies.

  10. Study of brazilian market of advanvced ceramics

    International Nuclear Information System (INIS)

    Veiga, M.M.; Soares, P.S.M.; SIlva, A.P. da; Alvarinho, S.B.

    1989-01-01

    The brazilian actual market survey of advanced ceramics, divided in sectors according to their function is described. The electroelectronics, magnetics, optics, mechanics and nuclears ceramics are presented. A forecasting of the brazilian market in advanced ceramics are also mentioned. (C.G.C.) [pt

  11. The new Brazilian national forest inventory

    Science.gov (United States)

    Joberto V. de Freitas; Yeda M. M. de Oliveira; Doadi A. Brena; Guilherme L.A. Gomide; Jose Arimatea Silva; < i> et al< /i>

    2009-01-01

    The new Brazilian national forest inventory (NFI) is being planned to be carried out through five components: (1) general coordination, led by the Brazilian Forest Service; (2) vegetation mapping, which will serve as the basis for sample plot location; (3) field data collection; (4) landscape data collection of 10 x 10-km sample plots, based on high-resolution...

  12. 36th Brazilian Workshop on Nuclear Physics

    CERN Document Server

    Brandão de Oliveira, José Roberto; Barbosa Shorto, Julian Marco; Higa, Renato

    2014-01-01

    The Brazilian Workshop on Nuclear Physics (RTFNB, acronym in Portuguese) is organized annually by the Brazilian Physics Society since 1978, in order to: promote Nuclear Physics research in the country; stimulate and reinforce collaborations among nuclear physicists from around the country; disseminate advances in nuclear physics research and its applications; disseminate, disclose and evaluate the scientific production in this field.

  13. Law 5.877 of May 11, 1973

    International Nuclear Information System (INIS)

    1973-01-01

    Authorize the Brazilian Nuclear Energy Commission (CNEN) to pay up partially the subscribed authorized social capital of the Companhia Brasileira de Tecnologia Nuclear (CBTN) - Brazilian Nuclear Technology Company

  14. Law 5.877 of May 11, 1973; Lei no. 5.877 de 11 de Maio de 1973

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1973-05-11

    Authorize the Brazilian Nuclear Energy Commission (CNEN) to pay up partially the subscribed authorized social capital of the Companhia Brasileira de Tecnologia Nuclear (CBTN) - Brazilian Nuclear Technology Company.

  15. Law 5.740 of December 1, 1971; Lei no. 5.740 de 1 de Dezembro de 1971

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1971-12-01

    Authorizes the Brazilian Nuclear Energy Commission (CNEN) to create the joint stock company Companhia Brasileira de Tecnologia Nuclear (CBTN) - Brazilian Nuclear Technology Company -, and makes additional providence.

  16. Methodological study for management of the generated effluents during MTR-type fuel elements fabrication at IPEN/CNEN-SP plant

    International Nuclear Information System (INIS)

    Tanzillo Santos, Glaucia Regina

    2008-01-01

    CCN/IPEN-CNEN more efficiency concerning financial and environmental aspects. This work will surely contribute to the sustainability of our enterprise, assuring the growth of CCN in economically viable, socially fair and environmental responsible way. (author)

  17. Publication in a Brazilian journal by Brazilian scientists whose papers have international impact.

    Science.gov (United States)

    Meneghini, R

    2010-09-01

    Nine Brazilian scientists with an outstanding profile of international publications were invited to publish an original article in the same issue of a Brazilian Journal (Anais da Academia Brasileira de Ciências). The objective was to measure the impact of the papers on the number of citations to the articles, the assumption being that these authors would carry their international prestige to the Brazilian periodical. In a 2-year period there was a larger number of citations of these articles compared to others published in the same journal. Nevertheless, the number of citations in Brazilian journals did not equal the number of citations obtained by the other papers by the same authors in their international publications within the same 2-year period. The reasons for this difference in the number of citations could be either that less significant invited articles were submitted or that it was due to the intrinsic lack of visibility of the Brazilian journals, but this could not be fully determined with the present data. Also relevant was a comparison between the citations of Brazilian journals and the publication in Brazilian journals by these selected authors. A clear imbalance due to a remarkable under-citation of Brazilian authors by authors publishing in Brazilian journals raises the possibility that psychological factors may affect the decision of citing Brazilian journals.

  18. Comparison of postmenopausal endogenous sex hormones among Japanese, Japanese Brazilians, and non-Japanese Brazilians

    Directory of Open Access Journals (Sweden)

    Maciel Maria

    2011-02-01

    Full Text Available Abstract Background Differences in sex hormone levels among populations might contribute to the variation in breast cancer incidence across countries. Previous studies have shown higher breast cancer incidence and mortality among Japanese Brazilians than among Japanese. To clarify the difference in hormone levels among populations, we compared postmenopausal endogenous sex hormone levels among Japanese living in Japan, Japanese Brazilians living in the state of São Paulo, and non-Japanese Brazilians living in the state of São Paulo. Methods A cross-sectional study was conducted using a control group of case-control studies in Nagano, Japan, and São Paulo, Brazil. Participants were postmenopausal women older than 55 years of age who provided blood samples. We measured estradiol, estrone, androstenedione, dehydroepiandrosterone sulfate (DHEAS, testosterone and free testosterone by radioimmunoassay; bioavailable estradiol by the ammonium sulfate precipitation method; and sex hormone-binding globulin (SHBG by immunoradiometric assay. A total of 363 women were included for the present analyses, comprising 185 Japanese, 44 Japanese Brazilians and 134 non-Japanese Brazilians. Results Japanese Brazilians had significantly higher levels of estradiol, bioavailable estradiol, estrone, testosterone and free testosterone levels, and lower SHBG levels, than Japanese. Japanese Brazilians also had significantly higher levels of bioavailable estradiol, estrone and DHEAS and lower levels of SHBG and androstenedione than non-Japanese Brazilians. Levels of estradiol, testosterone and free testosterone, however, did not differ between Japanese Brazilians and non-Japanese Brazilians. These differences were observed even after adjustment for known breast cancer risk factors. We also found an increase in estrogen and androgen levels with increasing body mass index, but no association for most of the other known risk factors. Conclusions We found higher levels of

  19. German-Brazilian nuclear deal

    International Nuclear Information System (INIS)

    Krugmann, H.

    1981-01-01

    Examination of the arguments in favor of the nuclear deal with West Germany and the resulting program suggests that revisions of both are in order to make them more compatible with Brazil's national interests. The deficiencies of current policy appear to be too weighty and numerous to be ignored. Sooner or later the government will have to move toward adjusting its nuclear agreement with West Germany, if not for the reasons discussed here then for lack of capital. Current estimates of the nuclear package lie in the range of $25 to $30 billion, compared to an initial projection of about $5 billion. The deal has become so expensive that it would draw capital from the hydropower and alcohol programs essential for the short and medium-term energy needs of the country. Mr. Krugman feels the Brazilian government should hold off on further nuclear contracts. And it should thoroughly reassess what Brazil's nuclear energy and technology requirements are and how to meet them. There are indications that the reassessment process is already underway. As long as the German nuclear industry depends on the sale of technology to Brazil, the Brazilian government will have considerable bargaining power to enforce further changes in the deal. If this power is used wisely, the result could be cooperation between the two countries toward nuclear options that are consistent with Brazil's energy and development needs

  20. Brazilian sparkling wine: A successful trajectory

    Directory of Open Access Journals (Sweden)

    Wurz Douglas André

    2017-01-01

    Full Text Available The objective of this study was to explore the evolution of internal and external commercialization of Brazilian sparkling wines during the period between 1986 and 2015, giving an overview of the current situation and its market trends, and highlighting the importance of Brazil in the world scenario for sparkling wines. This research is based on quantitative data sources provided by different institutions: International Organization of Vine and Wine (OIV, Brazilian Union of Viticulture (UVIBRA, Ministry of Agriculture, Livestock and Supply (MAPA and Brazilian Agricultural Research Corporation (EMBRAPA. Brazil is a promising country for the sparkling wine market. From 1986–2015, there was an increase of 465.6% in the sales of sparkling wine in the Brazilian domestic market, especially the last ten, which accounted for an increase of 215.7%. In 1998, Brazilian sparkling wines accounted for 70.5% of sparkling wines sold in Brazil. Today, they represent 82.1%of national market, and proved to be one of the most prestigious products from Brazilian viticulture when compared, for example, to non-sparkling wines, which 79% are imported wines. Of the imported sparkling wines consumed in Brazil, six countries account for 98.5% of the market (France: 32.7%; Italy: 24.8% and Spain: 21.9%. The volume exportation of Brazilian sparkling wine has grown significantly in recent years (4,210.2%, with Paraguay, China, Uruguay, the United States, France and the United Kingdom being the major buyers. The evolution of exports shows that Brazilian sparkling wine becomes an alternative to those produced in traditional countries, such as France, Italy and Spain, due to their quality and price. There is an increase in the commercialization of sparkling wines in the Brazilian domestic market, in addition to the growing participation of Brazil in the volume of exports in the world market, placing Brazil in a leading position in the production and sale of sparkling wines.

  1. SBR Brazilian organophilic/clay nanocomposites

    International Nuclear Information System (INIS)

    Guimaraes, Thiago R.; Valenzuela-Diaz, Francisco R.; Morales, Ana Rita; Paiva, Lucilene B.

    2009-01-01

    The aim of this work is the obtaining of SBR composites using a Brazilian raw bentonite and the same bentonite treated with an organic salt. The clays were characterized by XRD. The clay addition in the composites was 10 pcr. The composites were characterized by XRD and had measured theirs tension strength (TS). The composite with Brazilian treated clay showed TS 233% higher than a composite with no clay, 133% higher than a composite with Cloisite 30B organophilic clay and 17% lower than a composite with Cloisite 20 A organophilic clay. XRD and TS data evidence that the composite with Brazilian treated clay is an intercalated nanocomposite. (author)

  2. Scientometrics: Nature Index and Brazilian science.

    Science.gov (United States)

    Silva, Valter

    2016-09-01

    A recent published newspaper article commented on the (lack of) quality of Brazilian science and its (in) efficiency. The newspaper article was based on a special issue of Nature and on a new resource for scientometrics called Nature Index. I show here arguments and sources of bias that, under the light of the principle in dubio pro reo, it is questionable to dispute the quality and efficiency of the Brazilian science on these grounds, as it was commented on the referred article. A brief overview of Brazilian science is provided for readers to make their own judgment.

  3. Elicited Imitation for Brazilian Portuguese

    Directory of Open Access Journals (Sweden)

    Lonsdale, Deryle W.

    2015-01-01

    Full Text Available Elicited imitation (EI is an approach to measuring oral proficiency that consists of having test takers hear a sentence and repeat the sentence exactly as they heard it. Though indirect in nature, EI has successfully shown to correlate with previously established oral proficiency examinations, such as the Oral Proficiency Interview (OPI (Lonsdale and Christensen 2014, Matsushita and Lonsdale 2014, Millard 2011, Thompson 2013. This paper discusses the development, administration, and evaluation of an EI test for the Brazilian Portuguese language. We first discuss the relevant background of oral proficiency examination and EI. After presenting the pertinent research questions, we explain the methodology used to develop the EI test, recruit participants, and administer the test. We present the results and analysis and then summarize the findings, limitations, and possible future work

  4. Neymar, defender of brazilian tradition

    Directory of Open Access Journals (Sweden)

    Francisca Islandia Cardoso da Silva

    2016-09-01

    Full Text Available The purpose of this article is to analyze how university students of Teresina-PI appropriate of the message of a report of the television show Esporte Espetacular. There was use of the technique of focus groups and analytical-descriptive method for collecting and analyzing data. The sample consisted of 24 university students, aged between 18 and 24 years. The report features Neymar as responsible to follow the "tradition" of Brazilians and to be crowned as the best player in the world. The subjects of research said that the speech conveyed by the report can reproduce and create a reality sometimes dreamlike, because objective to confer to Neymar great importance with regard to national identity.

  5. Lexicalization patterns in Brazilian Portuguese

    Directory of Open Access Journals (Sweden)

    Dorival Gonçalves Santos Filho

    2016-10-01

    Full Text Available Neolatin languages belong to a lexicalization pattern in which the verbal root expresses semantic primitives of MOVE and PATH, leaving MANNER or CAUSE to be expressed by an adverb or the gerund form. In German origin languages, on the contrary, verbs lexicalize the semantic primitives of MOVE, MANNER or CAUSE; as for the PATH, it is expressed by a grammatical element that is associated to the verb. Taking into consideration some of the concepts of event of move, guided by Cognitive Semantics, and an analysis of examples extracted from The Hobbit and The Lord of the Rings’ books, the present study aims at showing, at least, three lexicalization patterns in which Brazilian Portuguese fits in.

  6. Best Practices in Brazilian Companies

    Directory of Open Access Journals (Sweden)

    Catia dos Reis Machado

    2013-04-01

    Full Text Available Competitive intelligence (CI is a systematic and ethical collection, analysis, dissemination and management of information about the external environment that may affect the plans, decisions and operations of the organization. Knowledge management (KM can be seen as a tool to promote organizational knowledge through the use of activities designed to identify, create, store, share and use knowledge. Companies face a challenge in the era of knowledge, it is the extraction and management of knowledge produced by people in the organization. CI and KM combined generates organizational intelligence. The exploratory study, based on literature and multicase study, we sought to identify best practices in processes of CI and KM in Brazilian companies. We identified practices related to the CI design process, the stages of the CI, the use of networks, and knowledge management. We also identified, points of attention on the internal/external organizational environment.

  7. Analysis of normative requirements for the development and implementation of a quality management system in Brazilian nuclear installations and activities; Analise de requisitos normativos para o desenvolvimento e a implementacao de um sistema de gestao da qualidade em instalacoes e atividades nucleares brasileiras

    Energy Technology Data Exchange (ETDEWEB)

    Kibrit, Eduardo

    2008-07-01

    The present work identifies, characterizes and analyses the normative requirements for the development and implementation of quality management systems in Brazilian nuclear installations and activities. The requirements established in standards IAEA GS-R-3, IAEA GS-G-3.1, IAEA DS 349, NBR ISO 9001:2000 e CNEN-NN-1.16 are critically analyzed. A correlation matrix of the applicable standards is presented and the related topics among them are identified. The standards IAEA GS-R-3, IAEA GS-G-3.1 and IAEA DS 349 define general requirements for establishing, implementing, assessing and continually improving an integrated management system in nuclear installations and activities, in IAEA member countries. The standard NBR ISO 9001:2000 establishes general requirements for the implementation of a quality management system in all kinds of organizations. The standard CNEN NN-1.16 establishes the regulating requirements for the quality assurance systems and programs of nuclear installations, for licensing and authorization for operation of these installations in Brazil. The standard IAEA GS-R-3 that replaces the code IAEA 50-C-Q introduces the concept of 'Integrated Management System' for the nuclear area, in preference to the concepts of 'Quality Assurance' and 'Quality Management'. This new approach is aligned with the current tendency incorporating requirements of quality, safety, health, environment, security, economics and other in a unique management system. Examples of quality management systems implemented by Brazilian nuclear organizations and by nuclear organizations outside Brazil are analyzed and considered in the discussion of results. (author)

  8. Analysis of normative requirements for the development and implementation of a quality management system in Brazilian nuclear installations and activities; Analise de requisitos normativos para o desenvolvimento e a implementacao de um sistema de gestao da qualidade em instalacoes e atividades nucleares brasileiras

    Energy Technology Data Exchange (ETDEWEB)

    Kibrit, Eduardo

    2008-07-01

    The present work identifies, characterizes and analyses the normative requirements for the development and implementation of quality management systems in Brazilian nuclear installations and activities. The requirements established in standards IAEA GS-R-3, IAEA GS-G-3.1, IAEA DS 349, NBR ISO 9001:2000 e CNEN-NN-1.16 are critically analyzed. A correlation matrix of the applicable standards is presented and the related topics among them are identified. The standards IAEA GS-R-3, IAEA GS-G-3.1 and IAEA DS 349 define general requirements for establishing, implementing, assessing and continually improving an integrated management system in nuclear installations and activities, in IAEA member countries. The standard NBR ISO 9001:2000 establishes general requirements for the implementation of a quality management system in all kinds of organizations. The standard CNEN NN-1.16 establishes the regulating requirements for the quality assurance systems and programs of nuclear installations, for licensing and authorization for operation of these installations in Brazil. The standard IAEA GS-R-3 that replaces the code IAEA 50-C-Q introduces the concept of 'Integrated Management System' for the nuclear area, in preference to the concepts of 'Quality Assurance' and 'Quality Management'. This new approach is aligned with the current tendency incorporating requirements of quality, safety, health, environment, security, economics and other in a unique management system. Examples of quality management systems implemented by Brazilian nuclear organizations and by nuclear organizations outside Brazil are analyzed and considered in the discussion of results. (author)

  9. Brazilian nuclear programme - energy in Brazil

    International Nuclear Information System (INIS)

    Lima, J.O.V.

    1988-01-01

    The brazilian energetic model, highly dependent of petroleum, have been changed in the sense to adopt diversified and regionalized solutions. This paper describes the role and the perspective of the nuclear energy in this context. (M.I.)

  10. Trends in breastfeeding research by Brazilian nurses

    Directory of Open Access Journals (Sweden)

    Mônica Oliveira B. Oriá

    Full Text Available Exclusive breastfeeding is acknowledged as important for survival, optimal growth, and development of infants. The current review presents a synthesis of research output by Brazilian nurses on breastfeeding over the last 20 years, analyzes the theoretical and methodological issues emerging from studies on breastfeeding in Brazil, and provides directions for future research and practice by nurses in the area breastfeeding. Studies included in this review were identified through LILACS searches of Portuguese-language sources. Articles were organized and analyzed chronologically by comparing the evolution of the Brazilian Breastfeeding Program. The incomplete research output of the Brazilian nursing profession in regard to breastfeeding research needs to be addressed. In addition, specific cultural, sociological, and anthropological characteristics of Brazilian regional settings remain to be explored. Emphasis on potential confounders and critical interrelations is warranted.

  11. Cerebrotendinous xanthomatosis: report of two Brazilian brothers.

    NARCIS (Netherlands)

    Lange, M.C.; Zetola, V.F.; Teive, H.; Scola, R.H.; Trentin, A.P.; Zavala, J.A.; Pereira, E.R.; Raskin, S.; Werneck, L.C.; Sistermans, E.A.

    2004-01-01

    Cerebrotendinous xanthomatosis is a treatable rare autossomal recessive disease characterized by lipid storage secondary to a sterol 27-hydroxylase deficiency in the formation of cholic and chenodeoxycholic acids. We describe two Brazilian brothers with cognitive impairement and chronic diarrhea.

  12. Study for correction of neutron scattering in the calibration of the albedo individual monitor from the Neutron Laboratory (LN), IRD/CNEN-RJ, Brazil

    International Nuclear Information System (INIS)

    Freitas, B.M.; Silva, A.X. da

    2014-01-01

    The Instituto de Radioprotecao e Dosimetria (IRD) runs a neutron individual monitoring service with albedo type monitor and thermoluminescent detectors (TLD). Moreover the largest number of workers exposed to neutrons in Brazil is exposed to 241 Am-Be fields. Therefore a study of the response of albedo dosemeter due to neutron scattering from 241 Am-Be source is important for a proper calibration. In this work, it has been evaluated the influence of the scattering correction in two distances at the Low Scattering Laboratory of the Neutron Laboratory of the Brazilian National Laboratory (Lab. Nacional de Metrologia Brasileira de Radiacoes Ionizantes) in the calibration of that albedo dosemeter for a 241 Am-Be source. (author)

  13. 3rd BRAZILIAN CONSENSUS ON Helicobacter pylori

    Directory of Open Access Journals (Sweden)

    Luiz Gonzaga Coelho

    2013-04-01

    Full Text Available Significant progress has been obtained since the Second Brazilian Consensus Conference on Helicobacter pylori Infection held in 2004, in São Paulo, SP, Brazil, and justify a third meeting to establish updated guidelines on the current management of H. pylori infection. The Third Brazilian Consensus Conference on H pylori Infection was organized by the Brazilian Nucleus for the Study of Helicobacter, a Department of the Brazilian Federation of Gastroenterology and took place on April 12-15, 2011, in Bento Gonçalves, RS, Brazil. Thirty-one delegates coming from the five Brazilian regions and one international guest, including gastroenterologists, pathologists, epidemiologists, and pediatricians undertook the meeting. The participants were allocated in one of the five main topics of the meeting: H pylori, functional dyspepsia and diagnosis; H pylori and gastric cancer; H pylori and other associated disorders; H pylori treatment and retreatment; and, epidemiology of H pylori infection in Brazil. The results of each subgroup were submitted to a final consensus voting to all participants. Relevant data were presented, and the quality of evidence, strength of recommendation, and level of consensus were graded. Seventy per cent and more votes were considered as acceptance for the final statement. This article presents the main recommendations and conclusions to guide Brazilian doctors involved in the management of H pylori infection.

  14. Futebol mulato: racial constructs in Brazilian football

    Directory of Open Access Journals (Sweden)

    Tiago Fernandes Maranhao

    2011-05-01

    Full Text Available The aim of this paper is to review Gilberto Freyre’s ideas about futebol mulato and the way these ideas have spread the notion of the Brazilian mulatto as a symbol of a ‘racial democracy’, unique in Brazil, around the world. The notion first appeared in 1938 in an article by Freyre for the Diários Associados, an important Brazilian newspaper. Football (soccer was employed by Freyre as the special arena where the multiracial Brazilian nation could shine and show the world a different way of being, opposed to the white and ‘rational’ way of European football. In Freyre’s work, the so-called ‘football-art’ was compared to poetry, while the European style was equated with prose. This essay argues that Freyre’s ideas were useful in constructing the Brazilian identity, a nation of harmony in all its aspects, including the area of race, and how the idea of the mulatto has been used to minimise social disparities within Brazilian society. Freyre’s ideas remain contemporary; many Brazilian intellectuals still refer to these concepts. As well, the press in this huge country, and especially in World Cup years, uses the concepts of mulatto and football-art to characterize Brazil and differentiate it from other countries.

  15. Surface decontamination in the old storage shed number 99 of the General Plan of IPEN/CNEN-SP, containing production equipment of natural uranium hexafluoride (UF6), aiming at its decommissioning

    International Nuclear Information System (INIS)

    Almeida, Claudio C. de; Cambises, Paulo B.S.; Paiva, Julio E. de; Paiva, Julio E. de; Silva, Teresina M.; Rodrigues, Demerval L.

    2013-01-01

    This paper presents the steps adopted in the operation planned for the decontamination of surfaces in the old storage shed number 99 the general layout of the Energy Research and Nuclear IPEN-CNEN/SP, Brazil, and contained various types of equipment originating from production hexafluoride natural uranium (UF6). This operation involved the planning, training of operators of the facility, analysis of workplaces and radiometric surveys for monitoring of external radiation and surface contamination. The training involved the procedures for decontamination of surfaces, segregation of materials and practical procedures for individual monitoring of contamination outside of the body. Were also established rules for the transport of radioactive materials in the internal and external facility and release of material and sites already decontaminated

  16. Insights from Brazilian medical journals

    Directory of Open Access Journals (Sweden)

    Bruno Caramelli

    2009-01-01

    Full Text Available This brand-new series of articles aims at delivering to national and international readers some of the cutting-edge contributions from the Brazilian medical literature. Recently papers published in the main Brazilian medical journals are carefully selected and analyzed by skilled medical editors. In addition we asked editors to choose keywords to be highlighted in order to claim for reader's attention. Articles are organized by area of interest to facilitate reading. To get the most of the limited available editorial space we did not include the names of the authors of the related articles in the text itself but a complete reference guide is provided at the end of the article. The result carries the most important messages from the original paper accompanied by a personal interpretation. Directed to the busy medical doctor we hope that this initiative may help in the successful translation of knowledge from scientific evidence to clinical practice.Esta nova série de artigos tem por objetivo levar aos leitores nacionais e internacionais algumas das mais importantes contribuições provenientes da literatura médica brasileira recente. Os artigos originais mais relevantes são selecionados por experientes editores a quem solicitamos que escolham palavras- chaves para que sejam destacadas para chamar a atenção do leitor. Para facilitar a leitura, os artigos são organizados por área de interesse. Para aproveitar ao máximo o limitado espaço editorial não são incluídos os nomes dos autores dos artigos. Entretanto, a referência completa é oferecida ao final do artigo. O resultado final traz o que há de melhor do artigo, seguido de uma sintética interpretação pessoal. Endereçado ao médico ocupado, esperamos que esta inciativa possa contribuir para o sucesso da translação do conhecimento da evidência científica para a prática clínica.

  17. The Brazilian electrical system reform

    International Nuclear Information System (INIS)

    Mendonca, A.F.; Dahl, C.

    1999-01-01

    Although the Brazilian electrical system has been a public monopoly, the threat of electricity shortages from a lack of investment triggered a comprehensive reform. In 1993 the government began a series of laws, decrees and regulations reforming the tariff policy, allowing privatization of utilities, foreign investments and independent power producers, and creating an independent transmission grid and a new electricity regulatory agency (ANEEL). The new regulatory framework is not completely defined but the proposed model intends to transform bulk electricity supply into a competitive market similar to that adopted in England. Our objective is to evaluate whether the proposed reform will succeed in attracting the required private capital, will allow an unregulated wholesale electricity market and will require a strict regulatory framework. The reform has been quite successful in privatizing the distribution companies but is allowing monopolistic rents, and has failed until now to attract private investments to expand generation capacity. The risk of blackouts has increased, and the proposed wholesale electricity market may not be appropriate because of barriers to constructing new hydroelectric units, now 90% of the system. Therefore, a new regulatory framework and a strong regulatory agency with a well-defined tariff policy should have preceded the privatization. (author)

  18. Extractive reserves in Brazilian Amazonia

    Energy Technology Data Exchange (ETDEWEB)

    Fearnside, P.M (National Institute for Research in the Amazon, Manaus-Amazonas (Brazil))

    1989-06-01

    In 1985 an opportunity arose for maintaining tracts of Amazonian forest under sustainable use. Brazil's National Council of Rubber Tappers and the Rural Worker's Union proposed the creation of a set of reserves of a new type, called extractive reserves. The first six are being established in one of the Brazilian states most threatened by deforestatation. The creation of extractive reserves grants legal protection to forest land traditionally used by rubber tappers, Brazil-nut gatherers, and other extractivists. The term extrativismo (extractivism) in Brazil refers to removing nontimber forest products, such as latex, resins, and nuts, without felling the trees. Approximately 30 products are collected for commercial sale. Many more types of forest materials are gathered, for example as food and medicines, for the extractivists' own use. The reserve proposal is attractive for several reasons related to social problems. It allows the rubber tappers to continue their livelihood rather than be expelled by deforestation. However, it is unlikely that sufficient land will be set aside as extractive reserves to employ all the tappers. Displaced rubber tappers already swell the ranks of urban slum dwellers in Brazil's Amazonian cities, and they have become refugees to continue their profession in the forests of neighboring countries, such as Bolivia.

  19. Permeability measuremens of brazilian Eucalyptus

    Directory of Open Access Journals (Sweden)

    Marcio Rogério da Silva

    2010-09-01

    Full Text Available The permeability of Brazilian Eucalyptus grandis and Eucalyptus citriodora wood was measured in a custom build gas analysis chamber in order to determine which species could be successfully treated with preservatives. Liquid permeability was tested using an emulsion of Neen oil and a control of distillated water. Air was used to test the gas phase permeability. For both Eucalyptus grandis and Eucalyptus citriodora, the longitudinal permeability of gas was shown to be about twice as great as the liquid phase permeability. No radial permeability was observed for either wood. The permeability of air and water through the sapwood of Eucalyptus grandis was greater than that through the sapwood of Eucalyptus citriodora. The permeability of neen oil preservative through the sapwood of Eucalyptus grandis was also greater than through the sapwood of E. Citradora, but the difference was not statistically significant. Scanning Electron Microscopy images showed that the distribution and obstruction in the vessels could be correlated with observed permeability properties. Irrespective of the causes of differences in permeability between the species, the fluid phase flux through the sapwood of both species was significant, indicating that both Eucalyptus grandis and Eucalyptus citriodora could be successfully treated with wood preservative.

  20. Brazilian Cerrado soil Actinobacteria ecology.

    Science.gov (United States)

    Suela Silva, Monique; Naves Sales, Alenir; Teixeira Magalhães-Guedes, Karina; Ribeiro Dias, Disney; Schwan, Rosane Freitas

    2013-01-01

    A total of 2152 Actinobacteria strains were isolated from native Cerrado (Brazilian Savannah) soils located in Passos, Luminárias, and Arcos municipalities (Minas Gerais State, Brazil). The soils were characterised for chemical and microbiological analysis. The microbial analysis led to the identification of nine genera (Streptomyces, Arthrobacter, Rhodococcus, Amycolatopsis, Microbacterium, Frankia, Leifsonia, Nakamurella, and Kitasatospora) and 92 distinct species in both seasons studied (rainy and dry). The rainy season produced a high microbial population of all the aforementioned genera. The pH values of the soil samples from the Passos, Luminárias, and Arcos regions varied from 4.1 to 5.5. There were no significant differences in the concentrations of phosphorus, magnesium, and organic matter in the soils among the studied areas. Samples from the Arcos area contained large amounts of aluminium in the rainy season and both hydrogen and aluminium in the rainy and dry seasons. The Actinobacteria population seemed to be unaffected by the high levels of aluminium in the soil. Studies are being conducted to produce bioactive compounds from Actinobacteria fermentations on different substrates. The present data suggest that the number and diversity of Actinobacteria spp. in tropical soils represent a vast unexplored resource for the biotechnology of bioactives production.

  1. Brazilian Cerrado Soil Actinobacteria Ecology

    Directory of Open Access Journals (Sweden)

    Monique Suela Silva

    2013-01-01

    Full Text Available A total of 2152 Actinobacteria strains were isolated from native Cerrado (Brazilian Savannah soils located in Passos, Luminárias, and Arcos municipalities (Minas Gerais State, Brazil. The soils were characterised for chemical and microbiological analysis. The microbial analysis led to the identification of nine genera (Streptomyces, Arthrobacter, Rhodococcus, Amycolatopsis, Microbacterium, Frankia, Leifsonia, Nakamurella, and Kitasatospora and 92 distinct species in both seasons studied (rainy and dry. The rainy season produced a high microbial population of all the aforementioned genera. The pH values of the soil samples from the Passos, Luminárias, and Arcos regions varied from 4.1 to 5.5. There were no significant differences in the concentrations of phosphorus, magnesium, and organic matter in the soils among the studied areas. Samples from the Arcos area contained large amounts of aluminium in the rainy season and both hydrogen and aluminium in the rainy and dry seasons. The Actinobacteria population seemed to be unaffected by the high levels of aluminium in the soil. Studies are being conducted to produce bioactive compounds from Actinobacteria fermentations on different substrates. The present data suggest that the number and diversity of Actinobacteria spp. in tropical soils represent a vast unexplored resource for the biotechnology of bioactives production.

  2. Surface decontamination in the old storage shed number 99 of the General Plan of IPEN/CNEN-SP, containing production equipment of natural uranium hexafluoride (UF{sub 6}), aiming at its decommissioning; Descontaminacao de superficies no antigo galpao de estocagem numero 99 da planta geral do IPEN/CNEN-SP, contendo equipamentos da producao de hexafluoreto de uranio natural, (UF{sub 6}), visando seu descomissionamento

    Energy Technology Data Exchange (ETDEWEB)

    Almeida, Claudio C. de; Cambises, Paulo B.S.; Paiva, Julio E. de; Paiva, Julio E. de; Silva, Teresina M.; Rodrigues, Demerval L., E-mail: calmeida@ipen.br, E-mail: cambises@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN), Sao Paulo, SP (Brazil)

    2013-11-01

    This paper presents the steps adopted in the operation planned for the decontamination of surfaces in the old storage shed number 99 the general layout of the Energy Research and Nuclear IPEN-CNEN/SP, Brazil, and contained various types of equipment originating from production hexafluoride natural uranium (UF6). This operation involved the planning, training of operators of the facility, analysis of workplaces and radiometric surveys for monitoring of external radiation and surface contamination. The training involved the procedures for decontamination of surfaces, segregation of materials and practical procedures for individual monitoring of contamination outside of the body. Were also established rules for the transport of radioactive materials in the internal and external facility and release of material and sites already decontaminated.

  3. Citizenship and decoloniality in Brazilian education

    Directory of Open Access Journals (Sweden)

    Viviane Conceição Antunes

    2014-08-01

    Full Text Available Reflecting on the importance of multiculturalism in teaching process and observing the otherness are primarily a challenge. This enables us to rethink what we have within ourselves, also to reconstitute memories involving discriminatory and unethical attitudes, which takes place in social fellowship. Based on the studies of Walsh (2007, 2009, Gomes (2007 and Tavares (2011, this work relies on decoloniality studies, mainly on the relevance of the history of Africa and Africanness in Brazilian education. Our corpus of analysis is found in the "Diretrizes Curriculares Nacionais para a Educação Básica" (DCN, 2013, the Brazilian Legislative Syllabus for Basic Education. Our focus is on the chapters concerning the Native-Brazilian and Quilomboa Education and ethnic-racial relations. Our most important aims are: to show the intercultural theoretical framework in which they are based on; to understand the immediate link established between the Native-Brazilian education and intercultural perspective; to clarify how the African diaspora was carried out in this particular case. Based on some Excel resources we were able to: 1 stablish the predominance of functional framework of interculturalism throughout these chapters, along with some critical features of interculturalism, as the issue of curricular decoloniality; 2 observe the established relationship between bilingualism and multiculturalism in the guidelines of Native-Brazilian education; and 3 identify a search for an effective inclusion of Africanness in curricula supported by the historical recognition and visibility of their sociocultural contribution.

  4. Global power and Brazilian nuclear decisions

    Energy Technology Data Exchange (ETDEWEB)

    Metri, Paulo, E-mail: pmetri@terra.com.br [Clube de Engenharia, Rio de Janeiro, RJ (Brazil)

    2017-07-01

    Brazilian society declares no intention to development a nuclear artifact. This is on its Constitution. The submarine of nuclear propulsion may be used as a weapon of defense and, therefore, has a peaceful objective. Nationalism must be applied only to benefit the society. Nationalist attention has always been devoted, at various occasions, to the Brazilian nuclear sector. However, since Brazilian society has many needs and the Brazilian government always had numerous energy options, this sector has not been developed as it could be. Other successful applications of nuclear technology, besides electric generation, are not considered here. At present, the country is experiencing a moment of harassment of liberal forces. It is difficult to know if the population understands what is going on, due to the traditional media control. This media belongs to the capital. The rise and the fall of the nationalist strand in a country follow a global tendency and also depend of actions of the international capital. In nationalist periods, more decisions with positive social impact are taken. Therefore, sovereignty is necessary to increase the benefits to society. Unfortunately, the Brazilians deceived by the companies of mass communication and corrupt political leaderships allow the country to be dominated. Even the armed forces had their projects paralyzed. The nuclear sector, as all other, suffers with the low budget and the future is difficult to predict. (author)

  5. Efficiency Determinants in Brazilian Football Clubs

    Directory of Open Access Journals (Sweden)

    Marcelo Machado de Freitas

    2017-01-01

    Full Text Available The aim of this study is to analyze the efficiency of Brazilian football clubs in generating revenues and the reasons behind it. To achieve this goal, we applied quantitative methods including Data Envelopment Analysis and Tobit regression modeling to data on the best clubs from 2012 to 2014, according to the Brazilian Football Confederation ranking. The results allowed for the inference that the largest Brazilian clubs, such as Grêmio (RS, Palmeiras (SP and Vasco (RJ, were not efficient in any period under analysis. Others, such as Guarani (SP and Guaratinguetá (SP, were efficient in all of years under consideration. With the Tobit regression model, we were able to determine that winning titles and the elite status of a given club are decisive factors in achieving efficiency. Included among the strategies that allow for greater efficiency in Brazilian clubs are the better utilization of stadiums and club assets, maximization of the financial worth of player popularity, and joining these with titles and a place in the A Series. Finally, the results of this study contribute to the strategic development of the football business, highlighting the positive effects that efficiency yields for clubs, thus supporting the growing body of research on sports management in Brazilian academia.

  6. Global power and Brazilian nuclear decisions

    International Nuclear Information System (INIS)

    Metri, Paulo

    2017-01-01

    Brazilian society declares no intention to development a nuclear artifact. This is on its Constitution. The submarine of nuclear propulsion may be used as a weapon of defense and, therefore, has a peaceful objective. Nationalism must be applied only to benefit the society. Nationalist attention has always been devoted, at various occasions, to the Brazilian nuclear sector. However, since Brazilian society has many needs and the Brazilian government always had numerous energy options, this sector has not been developed as it could be. Other successful applications of nuclear technology, besides electric generation, are not considered here. At present, the country is experiencing a moment of harassment of liberal forces. It is difficult to know if the population understands what is going on, due to the traditional media control. This media belongs to the capital. The rise and the fall of the nationalist strand in a country follow a global tendency and also depend of actions of the international capital. In nationalist periods, more decisions with positive social impact are taken. Therefore, sovereignty is necessary to increase the benefits to society. Unfortunately, the Brazilians deceived by the companies of mass communication and corrupt political leaderships allow the country to be dominated. Even the armed forces had their projects paralyzed. The nuclear sector, as all other, suffers with the low budget and the future is difficult to predict. (author)

  7. The Role of Agriculture on the Recent Brazilian Economic Growth

    OpenAIRE

    Spolador, Humberto Francisco Silva; Roe, Terry L.

    2012-01-01

    This paper investigates the contribution of the Brazilian agriculture to economic growth of the Brazilian economy. It draws upon the Global Trade Analysis Project (GTAP) data base, and other time series data to construct a multi-sector Ramsey model that shows the transition growth of the Brazilian agricultural sector and its effects on growth of the Brazilian economy, with particular emphasis given to the years 1994–2010.

  8. The Brazilian national system of forest permanent plots

    Science.gov (United States)

    Yeda Maria Malheiros de Oliveira; Maria Augusta Doetzer Rosot; Patricia Povoa de Mottos; Joberto Veloso de Freitas; Guilherme Luis Augusto Gomide; < i> et al< /i>

    2009-01-01

    The Brazilian National System of Forest Permanent Plots (SisPP) is a governmental initiative designed and being implemented in partnership by the Ministry of Environment (MMA), represented by the National Forest Programme (PNF) and the Brazilian Forest Service (SFB) and the Embrapa Forestry (a research center of the Brazilian Agricultural Research Corporation - Embrapa...

  9. Directions and deviations in the Brazilian nuclear policy

    International Nuclear Information System (INIS)

    Leal, M.C.

    1982-01-01

    The emergence of the Brazilian nuclear policy as a subject of interest to the Brazilian society, the conflicts characterizing its formulation and implementation between 1945 and 1958 and the political criteria for executing a Brazilian nuclear program are presented. (M.C.K.) [pt

  10. Brazilian energy balance 2006: calendar year 2005

    International Nuclear Information System (INIS)

    2006-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 2006. It is divided into nine chapters: energy analysis and aggregated data; energy supply and consumption by source 1990/2005; energy consumption by sector 1990/2005; energy import and export 1990/2005; transformation center balances 1990/2005; Brazilian energy resources and reserves 1974/2005; energy and socio-economic 1990/2005; federal states data and appendices including installed capacity; world energy data; general structure of the Brazilian Energy Balance; treatment of information; conversion units and consolidated Energy Balance 1970-2005

  11. Indoor air quality in Brazilian universities.

    Science.gov (United States)

    Jurado, Sonia R; Bankoff, Antônia D P; Sanchez, Andrea

    2014-07-11

    This study evaluated the indoor air quality in Brazilian universities by comparing thirty air-conditioned (AC) (n = 15) and naturally ventilated (NV) (n = 15) classrooms. The parameters of interest were indoor carbon dioxide (CO2), temperature, relative humidity (RH), wind speed, viable mold, and airborne dust levels. The NV rooms had larger concentration of mold than the AC rooms (1001.30 ± 125.16 and 367.00 ± 88.13 cfu/m3, respectively). The average indoor airborne dust concentration exceeded the Brazilian standards (indoor air quality in Brazilian university classrooms affects the health of students. Therefore, indoor air pollution needs to be considered as an important public health problem.

  12. Who owns the Brazilian carbon?

    Science.gov (United States)

    Freitas, Flavio L M; Englund, Oskar; Sparovek, Gerd; Berndes, Göran; Guidotti, Vinicius; Pinto, Luís F G; Mörtberg, Ulla

    2018-05-01

    Brazil is one of the major contributors to land-use change emissions, mostly driven by agricultural expansion for food, feed, and bioenergy feedstock. Policies to avoid deforestation related to private commitments, economic incentives, and other support schemes are expected to improve the effectiveness of current command and control mechanisms increasingly. However, until recently, land tenure was unknown for much of the Brazilian territory, which has undermined the governance of native vegetation and challenged support and incentive mechanisms for avoiding deforestation. We assess the total extent of public governance mechanisms protecting aboveground carbon (AGC) stocks. We constructed a land tenure dataset for the entire nation and modeled the effects and uncertainties of major land-use acts on protecting AGC stocks. Roughly 70% of the AGC stock in Brazil is estimated to be under legal protection, and an additional 20% is expected to be protected after areas in the Amazon with currently undesignated land undergo a tenure regularization. About 30% of the AGC stock is on private land, of which roughly two-thirds are protected. The Cerrado, Amazon, and Caatinga biomes hold about 40%, 30%, and 20% of the unprotected AGC, respectively. Effective conservation of protected and unprotected carbon will depend on successful implementation of the Forest Act, and regularization of land tenure in the Amazon. Policy development that prioritizes unprotected AGC stocks is warranted to promote conservation of native vegetation beyond the legal requirements. However, different biomes and land tenure structures may require different policy settings considering local and regional specifics. Finally, the fate of current AGC stocks relies upon effective implementation of command and control mechanisms, considering that unprotected AGC in native vegetation on private land only accounts for 6.5% of the total AGC stock. © 2017 John Wiley & Sons Ltd.

  13. TECHNOLOGY REPRESENTATION IN SOME BRAZILIAN POEMS

    Directory of Open Access Journals (Sweden)

    Rubel Maria Fanini

    2010-07-01

    Full Text Available Abstract: This article analyses how the universe of technology and labour are depicted in literary terms in some Brazilian poems from the writers Castro Alves, Mario de Andrade and Oswald de Andrade. The poets portray this universe in the following approaches: modern technology dissociated from the Brazilian context painted as traditional and archaic; associated to industrial production and to workers’ exploitation; linked to high class entertainment and as an imported good subjected to central capitalistic economies, facing difficulties to be aggregated to local production.

  14. Brazilian energy statistics - 1988. Annual bulletin of the Brazilian National Committee of the World Energy Conference

    International Nuclear Information System (INIS)

    1988-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydraulic energy, petroleum, natural gas and coal. It contains data on ethyl alcohol derived from sugar cane and some information about the Brazilian Action Plan for the petroleum sector, nuclear energy, ecology and Chernobyl. Graphs, annual statistics and long range data of electric power, petroleum and derivates, natural gas, coal and alcohol are also included. 19 figs., 15 tabs

  15. 2. Brazilian Congress on Cell Biology and 7. Brazilian Colloquium on Electron Microscopy - Abstracts

    International Nuclear Information System (INIS)

    1980-01-01

    Immunology, virology, bacteriology, genetics and protozoology are some of the subjects treated in the 2. Brazilian Congress on Cell Biology. Studies using radioisotopic techniques and ultrastructural cytological studies are presented. Use of optical - and electron microscopy in some of these studies is discussed. In the 7. Brazilian Colloquium on Electron Microscopy, the application of this technique to materials science is discussed (failure analysis in metallurgy, energy dispersion X-ray analysis, etc). (I.C.R.) [pt

  16. Comparison between Brazilian radiation protection standard and the recommendation of the International Commission on Radiological Protection published in 2007

    International Nuclear Information System (INIS)

    Pereira, W.S.; Kelecom, A.; Pereira, J.R.S.

    2015-01-01

    This study aims to evaluate the differences between the CNEN's standard and the publication of ICRP-103, analyzing the philosophy for radiation protection, dose limits and other relevant aspects of radiation protection

  17. Spirometry reference values in the Brazilian population.

    Science.gov (United States)

    Rufino, R; Costa, C H; Lopes, A J; Maiworm, A I; Maynard, K; Silva, L M R A; Dias, R M

    2017-03-02

    The aim of the present study was to provide new spirometry reference equations in a sample of the Brazilian population for the following parameters: forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), FEV1/FVC ratio, peak of expiratory flow (PEF), forced expiratory flow at 50% (FEF50%), 75% average vital capacity (FEF25-75%), and average forced expiratory flow time (FEFT). This was a prospective study using results from chest radiographs, electrocardiograms, and questionnaires to investigate the participants' respiratory symptoms, sedentarism, and comorbidities (Charlson comorbidity index). From December 2010 to July 2014, individuals were randomly selected from various locations in the state of Rio de Janeiro. All individuals were examined by a single technician in the morning at the laboratory, and performed the spirometry with the same spirometer. Spirometry values were tabulated for the creation of three equation models: linear regression, logarithmic regression, and logarithms through a method that incorporates the lambda, median, and coefficient of variation (LMS method). Initially, 7003 individuals from both genders were contacted, and 454 were recruited. The data from the new equations were compared with one Brazilian and eight international equations, resulting in a high correlation (r>0.9). The values derived from the LMS method and linear regression were very similar (P>0.5), and both could be used to acquire the reference values for Brazilian spirometry. Data derived from the equations of this study were different from the current Brazilian equation, which could be justified by the different method used.

  18. Selective logging in the Brazilian Amazon.

    Science.gov (United States)

    G. P. Asner; D. E. Knapp; E. N. Broadbent; P. J. C. Oliveira; M Keller; J. N. Silva

    2005-01-01

    Amazon deforestation has been measured by remote sensing for three decades. In comparison, selective logging has been mostly invisible to satellites. We developed a large-scale, high-resolution, automated remote-sensing analysis of selective logging in the top five timber-producing states of the Brazilian Amazon. Logged areas ranged from 12,075 to 19,823 square...

  19. National Bioethics Council: a Brazilian proposal.

    NARCIS (Netherlands)

    Garrafa, V.; Have, H.A.M.J. ten

    2010-01-01

    The number of national bioethics commissions has burgeoned since the establishment of the first one in 1983. They provide an arena in which stakeholders with widely differing moral views can discuss, interact and negotiate about controversial matters. The establishment of the Brazilian committee is

  20. The new Brazilian legislation on nuclear protection

    International Nuclear Information System (INIS)

    Fischer, Denise

    1981-10-01

    This paper considers the new system on nuclear protection in Brazil which was established to integrate all government agencies and private bodies involved in nuclear activities. The role of each organisation is analysed in relation to the Brazilian political and administrative structure, in particular that of the Nuclear Energy Commission. (NEA) [fr

  1. The Brazilian investment in science and technology

    Directory of Open Access Journals (Sweden)

    Pinheiro-Machado R.

    2001-01-01

    Full Text Available An analysis of Brazilian federal expenditures in science and technology is presented is this study. The 1990-1999 data were compiled from records provided by two federal agencies (MCT and CNPq responsible for managing most of the national budget related to these activities. The results indicate that the federal investments in Brazilian science and technology stagnated during the last decade (US$ 2.32 billion in 1990, US$ 2.39 billion in 1996, and US$ 2.36 billion in 1999. In contrast, a great increase in private investments in research was acknowledged both by industry and by the government during the same period, from US$ 2.12 to US$ 4.64 billion. However, this investment did not result in an increase in invention patents granted to residents (492 in 1990 and only 232 in 1997 or in a reduction of patent costs. Despite this unfavorable scenario, the number of graduate programs in the country has increased two-fold in the last decade and the contribution of Brazilians to the database of the Institute for Scientific Information has increased 4.7-fold from 1990 (2,725 scientific publications to 2000 (12,686 scientific publications. Unstable federal resources for science, together with the poor returns of private resources in terms of developing new technologies, may jeopardize the future of Brazilian technological development.

  2. Analogies in high school Brazilian chemistry textbooks

    Directory of Open Access Journals (Sweden)

    Rosária Justi

    2000-05-01

    Full Text Available This paper presents and discusses an analysis of the analogies presented by Brazilian chemistry textbooks for the medium level. The main aim of the analysis is to discuss whether such analogies can be said good teaching models. From the results, some aspects concerning with teachers' role are discussed. Finally, some new research questions are emphasised.

  3. Land Use Dynamics in the Brazilian Amazon

    Science.gov (United States)

    Robert Walker

    1996-01-01

    The articles presented in this special issue of Ecological Economics address the important theme of land use dynamics as it pertains to the Brazilian Amazon. Much environmental change is an ecological artifact of human agency, and such agency is often manifested in land use impacts, particularly in tropical areas. The critical problem of tropical deforestation is but...

  4. Sports injuries in Brazilian blind footballers.

    Science.gov (United States)

    Magno e Silva, M P; Morato, M P; Bilzon, J L J; Duarte, E

    2013-03-01

    The purpose of this study was to assess the characteristics and prevalence of sports-related injuries in visually disabled athletes of the Brazilian football 5-a-side team. The participants were 13 male athletes, all classified as B1 visual class, members of the Brazilian team, who played in five consecutive international competitions. Data were collected using the Brazilian Paralympic Committee and the Brazilian Confederation of Sports for the Blind report form. From the total of 13 athletes, 11 succumbed to some form of injury during the 5 competitions, which incorporated 23 matches, representing a prevalence of 84.6%. A total of 35 sports injuries were recorded, giving a clinical incidence of 2.7 injuries per athlete and an injury risk of 0.85 and an incidence rate of 0.12 injuries per match. Traumatic injuries (80%) were more common than overuse injuries (20%) (psports-related injuries in 5-a-side football in blind athletes. The results are important in guiding strategies to inform the implementation of preventive pathways and provide a strong rationale for the compulsory use of additional protective equipment. © Georg Thieme Verlag KG Stuttgart · New York.

  5. Brazilian Development vs. the Amazonian Indians.

    Science.gov (United States)

    McNeil, Stephen

    1978-01-01

    We may be involved in a replay of the Indian genocide and dislocation characteristic of early U.S. history through the workings of international economics. This historical account briefly outlines the recent economic developments in the Brazilian Amazon, the effects that those policies have on the natives, and the United States' involvement in…

  6. Miocene freshwater Mollusca from western Brazilian Amazonia

    NARCIS (Netherlands)

    Wesselingh, F.P.; Ranzi, A.; Räsänen, M.E.

    2006-01-01

    Thirteen species of fossil molluscs are reported from the Solimões Formation of western Brazilian Amazonia. Based on mammalian chronology of the Solimões Formation and radiometric ages reported from coeval deposits in adjacent Peru, the age of the fauna is established as Late Miocene. The fauna

  7. Earning management in Brazilian financial institutions

    Directory of Open Access Journals (Sweden)

    Adriana Bruscato Bortoluzzo

    2016-06-01

    Full Text Available ABSTRACT The present study aims to study earnings management in a significant sample of 123 banks in the Brazilian market between 2001 and 2012. Given the important role that banks play in a country's economy, it is important to understand that there are discretionary factors involved in the reporting of a financial institution's profitability. Credit provisioning guidelines for Brazilian financial institutions are described in Resolution 2682/99 of the National Monetary Council (Conselho Monetário Nacional. Because of the discretion allowed in this resolution, loan loss provision is used as instrument of earnings management, which is not an illegal practice, but this behavior does affect the risk perception of agents and analysts, and they should be aware of it and understand it. We found that credit provisioning is used as an earnings management mechanism to smooth the net income of Brazilian financial institutions. Brazilian banks tend to avoid not only negative net income pre-loan loss provisions and taxes, but also negative net income pre-loan loss provisions and taxes in relation to the previous period. Contrary to the previous studies, it is not clear if banks avoid lower net income pre-loan loss provisions and taxes than a given peer group.

  8. Lizards of Brazilian Amazonia (Reptilia: Squamata)

    NARCIS (Netherlands)

    Avila-Pires, T.C.S.

    1995-01-01

    Eighty-nine species of lizards, six of which polytypic (forming a total of 97 taxa), are presently known from Brazilian Amazonia. This number includes six species and one subspecies described as new to science in this paper: Stenocercus fimbriatus, Lepidoblepharis hoogmoedi, Leposoma osvaldoi, L.

  9. The Brazilian Multipurpose Reactor (RMB) Project

    Energy Technology Data Exchange (ETDEWEB)

    Perrotta, Jose Augusto [Comissao Nacional de Energia Nuclear (CNEN), Rio de Janeiro, RJ (Brazil)

    2012-07-01

    Full text: The Plan of Action on Science, Technology and Innovation (PACT 2007-2010) of the Ministry of Science Technology and Innovation (MCTI), aligned to the governmental strategies for the Brazilian Nuclear Program, established as a goal the study and definition of the Brazilian Multipurpose Reactor (RMB). The RMB research reactor is designed to perform three main functions: radioisotope production for medicine, industry, agriculture and environmental applications; fuel and material irradiation testing in support to the Brazilian nuclear energy program; and to provide neutron beams for scientific and applied research. The main project facilities are: nuclear pool type reactor with a flux level compatible to the multipurpose uses; hot cells laboratory for Mo-99 and I-131 processing; hot cells laboratory for radioisotope processing; hot cells laboratory for irradiated material post irradiation analysis; neutron beams laboratory building with scientific equipment and instrumentation for researching; radiochemistry laboratory; radioactive waste treatment facility; support laboratories for operation and researching; and buildings for researchers and operators. This speech presents the RMB project status, giving some technical and management details on its development and its future perspectives for new jobs in research activities for the Brazilian technical and scientific community. (author)

  10. The Brazilian Multipurpose Reactor (RMB) Project

    International Nuclear Information System (INIS)

    Perrotta, Jose Augusto

    2012-01-01

    Full text: The Plan of Action on Science, Technology and Innovation (PACT 2007-2010) of the Ministry of Science Technology and Innovation (MCTI), aligned to the governmental strategies for the Brazilian Nuclear Program, established as a goal the study and definition of the Brazilian Multipurpose Reactor (RMB). The RMB research reactor is designed to perform three main functions: radioisotope production for medicine, industry, agriculture and environmental applications; fuel and material irradiation testing in support to the Brazilian nuclear energy program; and to provide neutron beams for scientific and applied research. The main project facilities are: nuclear pool type reactor with a flux level compatible to the multipurpose uses; hot cells laboratory for Mo-99 and I-131 processing; hot cells laboratory for radioisotope processing; hot cells laboratory for irradiated material post irradiation analysis; neutron beams laboratory building with scientific equipment and instrumentation for researching; radiochemistry laboratory; radioactive waste treatment facility; support laboratories for operation and researching; and buildings for researchers and operators. This speech presents the RMB project status, giving some technical and management details on its development and its future perspectives for new jobs in research activities for the Brazilian technical and scientific community. (author)

  11. Ten years of Brazilian ballast water management

    Science.gov (United States)

    Castro, Maria Cecilia Trindade; Hall-Spencer, Jason M.; Poggian, Cecília Fonseca; Fileman, Timothy W.

    2018-03-01

    In 2005, Brazil addressed the environmental challenges posed by ballast water through a unilateral regulation, called the Maritime Standard N° 20 (NORMAM-20), applied to all shipping in her waters. This world-leading decision was the culmination of a process that started during the 1990‧s. Here, we summarize how these ballast water regulations were brought in and adopted and present the findings of 10 years of enforcement (2005-2015) in 39 ports along the Brazilian coast. We show that compliance with the Brazilian standard has increased significantly since the regulations were implemented (p < 0.001). After five years of implementation, non-compliance decreased probably reflecting an increase in awareness of the Brazilian Standard and a shift in the shipping industry commitment to minimize and control the spread of invasive species through ballast water. The Brazilian experience shows that very high levels (97%) of compliance with ballast water management regulations can be made to work in a region of global importance to the maritime industry. In the last decade, the rules governing ballast water in Brazil have evolved to address the demands from the maritime community and to provide updates such as imminent requirements for the use of ballast water management systems on board ships. These regulations are rarely cited when ballast water regulations are discussed internationally, yet there is much to learn from the proactive approach taken by Brazil such as what is feasible and enforceable.

  12. Transcultural Diabetes Nutrition Algorithm: Brazilian Application

    Directory of Open Access Journals (Sweden)

    Fabio Moura

    2015-09-01

    Full Text Available The prevalence of obesity, pre-diabetes, and type 2 diabetes (T2D is increasing worldwide, especially in the developing nations of South America. Brazil has experienced an exponential increase in the prevalence of these chronic non-communicable diseases. The rising prevalence is probably due to changing eating patterns, sedentary living, and a progressive aging of the population. These trends and their underlying causes carry untoward consequences for all Brazilians and the future of Brazilian public health and the healthcare system. Lifestyle changes that include healthy eating (nutrition therapy and regular physical activity (structured exercise represent efficient inexpensive measures to prevent and/or treat the aforementioned disorders and are recommended for all afflicted patients. Regrettably, the implementation of lifestyle changes is fraught with clinical and personal challenges in real life. The transcultural Diabetes Nutrition Algorithm (tDNA is a therapeutic tool intended to foster implementation of lifestyle recommendations and to improve disease-related outcomes in common clinical settings. It is evidence-based and amenable to cultural adaptation. The Brazilian Diabetes Association, Society of Cardiology and Ministry of Health guidelines for nutrition therapy and physical exercise were considered for the Brazilian adaptation. The resultant tDNA-Brazil and its underlying recommendations are presented and explained.

  13. Uranium enrichment : global view and Brazilian perspectives

    International Nuclear Information System (INIS)

    Zouain, D.M.; Sakamoto, L.H.

    1981-12-01

    A global view of isotope enrichment involving a general description of process (technical-economical aspects and policy) and status in developing countries is done. An enrichment demand in function of the Brazilian Nuclear Program is evaluated, analyzing a probable market and a low market. The perspectives to attend this demand, are studied. (E.G.) [pt

  14. A Grammar of Spoken Brazilian Portuguese.

    Science.gov (United States)

    Thomas, Earl W.

    This is a first-year text of Portuguese grammar based on the Portuguese of moderately educated Brazilians from the area around Rio de Janeiro. Spoken idiomatic usage is emphasized. An important innovation is found in the presentation of verb tenses; they are presented in the order in which the native speaker learns them. The text is intended to…

  15. The Brazilian business and growth cycles

    Directory of Open Access Journals (Sweden)

    Chauvet Marcelle

    2002-01-01

    Full Text Available This paper uses several produceres to date and analyse the Brazilian business and growth cycles. In particular, a Markov switching model is fitted to quarterly and annual real production data. The smoothed probabilities of the Markov states are used as predictive rules to define different phases of cyclical fluctuations of real Brazilian production. The results are compared with different non-parametric rules. All methods implemented yield similar dating and reveal asymmetries across the different states of the Brazilian business and growth cycles, in which slowdowns and recessions are short and abrupt, while high growth phases and expansions are longer and less steep. The resulting dating of the Brazilian economic cycles can be used as a reference point for construction and evaluation of the predictive performance of coincident, leading, or lagging indicators of economic activity. In addition, the filtered probabilities obtained from the Markov switching model allow early recognition of the transition to a new business cycle phase, wich can be used, for example, for evaluation of the adequate strength and timing of countercyclical policies, for reassessment of projected sales or profits by businesses and investors, or for monitoring of inflation pressures.

  16. RMB. The new Brazilian multipurpose research reactor

    International Nuclear Information System (INIS)

    Perrotta, Jose Augusto; Soares, Adalberto Jose

    2015-01-01

    Brazil has four research reactors (RR) in operation: IEA-R1, a 5 MW pool type RR; IPR-R1, a 100 kW TRIGA type RR; ARGONAUTA, a 500 W Argonaut type RR, and IPEN/MB-01, a 100 W critical facility. The first three were constructed in the 50's and 60's, for teaching, training, and nuclear research, and for many years they were the basic infrastructure for the Brazilian nuclear developing program. The last, IPEN/MB-01, is the result of a national project developed specifically for qualification of reactor physics codes. Considering the relative low power of Brazilian research reactors, with exception of IEAR1, none of the other reactors are feasible for radioisotope production, and even IEA-R1 has a limited capacity. As a consequence, since long ago, 100% of the Mo-99 needed to attend Brazilian nuclear medicine services has been imported. Because of the high dependence on external supply, the international Moly-99 supply crisis that occurred in 2008/2009 affected significantly Brazilian nuclear medicine services, and as presented in previous IAEA events, in 2010 Brazilian government formalized the decision to build a new research reactor. The new reactor named RMB (Brazilian Multipurpose Reactor) will be a 30 MW open pool type reactor, using low enriched uranium fuel. The facility will be part of a new nuclear research centre, to be built about 100 kilometres from Sao Paulo city, in the southern part of Brazil. The new nuclear research centre will have several facilities, to use thermal and cold neutron beams; to produce radioisotopes; to perform neutron activation analysis; and to perform irradiations tests of materials and fuels of interest for the Brazilian nuclear program. An additional facility will be used to store, for at least 100 years, all the fuel used in the reactor. The paper describes the main characteristics of the new centre, emphasising the research reactor and giving a brief description of the laboratories that will be constructed, It also presents the

  17. RMB. The new Brazilian multipurpose research reactor

    Energy Technology Data Exchange (ETDEWEB)

    Perrotta, Jose Augusto; Soares, Adalberto Jose [Comissao Nacional de Energia Nuclear (CNEN) (Brazil)

    2015-01-15

    Brazil has four research reactors (RR) in operation: IEA-R1, a 5 MW pool type RR; IPR-R1, a 100 kW TRIGA type RR; ARGONAUTA, a 500 W Argonaut type RR, and IPEN/MB-01, a 100 W critical facility. The first three were constructed in the 50's and 60's, for teaching, training, and nuclear research, and for many years they were the basic infrastructure for the Brazilian nuclear developing program. The last, IPEN/MB-01, is the result of a national project developed specifically for qualification of reactor physics codes. Considering the relative low power of Brazilian research reactors, with exception of IEAR1, none of the other reactors are feasible for radioisotope production, and even IEA-R1 has a limited capacity. As a consequence, since long ago, 100% of the Mo-99 needed to attend Brazilian nuclear medicine services has been imported. Because of the high dependence on external supply, the international Moly-99 supply crisis that occurred in 2008/2009 affected significantly Brazilian nuclear medicine services, and as presented in previous IAEA events, in 2010 Brazilian government formalized the decision to build a new research reactor. The new reactor named RMB (Brazilian Multipurpose Reactor) will be a 30 MW open pool type reactor, using low enriched uranium fuel. The facility will be part of a new nuclear research centre, to be built about 100 kilometres from Sao Paulo city, in the southern part of Brazil. The new nuclear research centre will have several facilities, to use thermal and cold neutron beams; to produce radioisotopes; to perform neutron activation analysis; and to perform irradiations tests of materials and fuels of interest for the Brazilian nuclear program. An additional facility will be used to store, for at least 100 years, all the fuel used in the reactor. The paper describes the main characteristics of the new centre, emphasising the research reactor and giving a brief description of the laboratories that will be constructed, It also

  18. [Brazilian colonization in the Paraguayan agricultural frontier].

    Science.gov (United States)

    Neupert, R F

    1991-04-01

    This work briefly describes Brazilian colonization of the Paraguayan agricultural frontier, analyzes factors responsible for expelling population from Brazil and for attracting Brazilians to Paraguay, and assesses the economic and social consequences of immigration to the area. Paraguay's vast and sparsely populated agricultural frontier in areas outside the Central subregion underwent a process of intense colonization from the early 1960s to the mid-1980s. The Paraguayan government initiated an ambitious colonization program in 1963 to increase production, relieve population pressure and subdivision of small parcels in the Central subregion, encourage agricultural modernization, and produce a more diversified agriculture. Paraguayan agriculture in the early 1960s suffered from excessive concentration of land in a few hands and resulting exclusion of around 3/4 of workers from ownership and from any possibility of obtaining credit to fund technological improvements. Results of studies 2 decades after implementation of the colonization plan suggest that it has failed in significant areas. Although a considerable population redistribution alleviated pressure in the Central subregion, it apparently resulted more from spontaneous movement of peasants outside the colonization areas than from the official program. Concentration of lands is now occurring in the colonization area. Assistance for agricultural modernization and diversification of production in the peasant sector has been minimal. On the other hand, production of soy, wheat, and cotton for export increased substantially, because of an entrepreneurial agriculture capitalized by foreign as well as national interests The unmet goals of the colonization program would have required structural reforms rather than simple spatial redistribution of the population. Many of the colonists in the 1970s were Brazilian families displaced by mechanized agriculture in the southern states of Parana, Santa Catarina, and Rio

  19. INTERNATIONALIZATION OF BRAZILIAN FRANCHISE CHAINS: A COMPARATIVE STUDY

    Directory of Open Access Journals (Sweden)

    Pedro Lucas de Resende Melo

    2015-04-01

    Full Text Available The primary goal of this paper is to comprehend the fundamental organizational differences between Brazilian franchise chains that only operate in the home market and Brazilian franchise chains that operate internationally. The sample chosen for this study comprehends 96 Brazilian franchises operating in the home market and 67 franchises with international operations; logistic regression was used to analyze data obtained from these sources. Our findings suggest that the development of a brand in international operations can be strategic for certain Brazilian franchise chains; this seems to be, however, a scarce resource for many franchises and it could be developed through international operations. With regard to the fees charged, the outcomes demonstrate that Brazilian franchises with international operations tend to charge lower fees from its franchisees to install new units. Regarding the monitoring and control of franchises, there is evidence that the monitoring capability is one of the determining factors in the development of Brazilian franchises international operations.

  20. EDITORIAL: XVI Brazilian Colloquium on Orbital Dynamics

    Science.gov (United States)

    de Melo, Cristiano F.; Macau, Elbert E. N.; Prado, Antonio B. A.; Hetem Jnr, Annibal

    2013-10-01

    The XVI Brazilian Colloquium on Orbital Dynamics was held from 26-30 November 2012, at the Biazi Grand Hotel, Serra Negra, São Paulo, Brazil. The Brazilian Colloquia on Orbital Dynamics are scientific events that occur bi-annually and are designed to develop those areas of research in celestial mechanics, orbital dynamics, planetary science, fundamental astronomy, aerospace engineering, and nonlinear systems and chaos. The meeting has been held for 30 years and it brings together researchers, professors and students from South American and also from other continents. Acknowledgements National Council for Scientific and Technological Development - CNPq Coordination for the Improvement of Higher Level - CAPES São Paulo Research Foundation - FAPESP

  1. The determinants of credit rating: brazilian evidence

    OpenAIRE

    MurciaI,Flávia Cruz de Souza; Dal-Ri Murcia,Fernando; Rover,Suliani; Borba,José Alonso

    2014-01-01

    This study attempts to identify the determinant factors of credit rating in Brazil. The relevance of this proposal is based on the importance of the subject as well as the uniqueness of the Brazilian market. As for originality, the great majority of previous studies regarding credit rating have been developed in the US, UK and Australia; therefore the effect on other markets is still unclear, especially in emerging markets, like Brazil. We’ve used a Generalized Estimating Equa...

  2. On the Brazilian energetic situation 1970 - 2030

    International Nuclear Information System (INIS)

    Lima, Maria Thereza da Silva Lopes; Souza, Marina Correa de; Flores, Tarcisio Santos; Cruz, Nathalia Gracielle da Silva; Diamantino, Hugo Duarte; Barroso, Livia Alves; Rocha, Bruna Almeida; Souza, Romulo Luiz Mendes; Ramos, Pedro Camilo; Macedo, Marcio Henrique Marques

    2015-01-01

    In this paper we report, first, the Brazilian energy situation from the major oil crisis in the 1970s.Next, we discuss the period from the 1980s until 2005.Finally, it is projected scenarios from recent past (2005-2013), to the future that begins today and runs until 2030.This is a work for educational purposes, in which we provide compiled data for school research in all levels. (author)

  3. RMB: the new Brazilian Multipurpose Research Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Perrotta, Jose Augusto, E-mail: perrotta@ipen.br [Instituto de Pesquisas Energeticas e Nucleares (IPEN/CNEN-SP), Sao Paulo, SP (Brazil)

    2016-07-01

    Full text: The Brazilian research reactors have a limited capacity for radioisotopes production, leading to a high dependence on external supply for radioisotopes used in nuclear medicine. In order to overcome this condition and due to the old age of these research reactors, the Brazilian Nuclear Energy Commission decided, in 2008, to construct a new research reactor. The new reactor named RMB (Brazilian Multipurpose Reactor) will be part of a new nuclear research center, to be built on a site about 100 kilometers from São Paulo city, in the southern part of Brazil. The new nuclear research center will have a 30 MW open pool type research reactor using low enriched uranium fuel, and several associated laboratories in order to produce radioisotopes for medical and industrial use, to use neutron beams in scientific and technological research; to perform neutron activation analysis; and to perform materials and fuels irradiation tests. Regarding the neutron beams use, the RMB design provides thermal and cold neutron beams. From one side of the reactor, the neutron guides will extend to an experimental hall of instruments named Neutron Guide Hall where it will be installed the scattering instruments. In the initial stage of the reactor operation, the intent is to implement two neutron guides for thermal neutrons and another two for cold neutrons. The 2015 SBPMAT symposium has presented the technical overview of the RMB project and its main buildings, structures and components. At this year symposium, the RMB presentation updates some technical information and the development status of the project, discussing the negative results of the Brazilian political and economic crisis to the project development and its future perspectives. (author)

  4. Antifungal properties of Brazilian cerrado plants

    Directory of Open Access Journals (Sweden)

    Souza Lúcia Kioko Hasimoto e

    2002-01-01

    Full Text Available Ethanolic extracts from leaves of Hyptis ovalifolia, H. suaveolens, H. saxatilis, Hyptidendrum canum, Eugenia uniflora, E. dysenterica, Caryocar brasiliensis and Lafoensia pacari were investigated for their antifungal activity against dermatophytes. The most effective plants were H. ovalifolia and E. uniflora, while Trichophyton rubrum was the most sensitive among the four dermatophytes species evaluated. This study has demonstrated antifungal properties of Brazilian Cerrado plant extracts in "in vitro" assays.

  5. Aromatic compounds from three Brazilian Lauraceae species

    Energy Technology Data Exchange (ETDEWEB)

    Batista, Andrea Nastri de Luca; Batista Junior, Joao Marcos; Lopez, Silvia Noeli; Furlan, Maysa; Cavalheiro, Alberto Jose; Silva, Dulce Helena Siqueira; Bolzani, Vanderlan da Silva [UNESP, Araraquara, SP (Brazil). Inst. de Quimica. Dept. de Quimica Organica; Nunomura, Sergio Massayoshi [Instituto Nacional de Pesquisa da Amazonia (INPA), Manaus, AM (Brazil). Dept. de Produtos Naturais; Yoshida, Massayoshi [Centro de Biotecnologia da Amazonia, Manaus, AM (Brazil)

    2010-07-01

    Phytochemical investigations on three Brazilian Lauraceae species from the Cerrado region of Sao Paulo State, Ocotea corymbosa (Meins) Mez., O. elegans Mez. and Persea pyrifolia Nees and Mart. ex Nees resulted in the isolation of flavonoids, an ester of the 4-O-E-caffeoylquinic acid, an aromatic sesquiterpene besides furofuran lignans. This is the first chemical study on the leaves of Ocotea elegans and O. corymbosa as well as the first report of non-volatile compounds from Persea pyrifolia. (author)

  6. Aromatic compounds from three Brazilian Lauraceae species

    International Nuclear Information System (INIS)

    Batista, Andrea Nastri de Luca; Batista Junior, Joao Marcos; Lopez, Silvia Noeli; Furlan, Maysa; Cavalheiro, Alberto Jose; Silva, Dulce Helena Siqueira; Bolzani, Vanderlan da Silva

    2010-01-01

    Phytochemical investigations on three Brazilian Lauraceae species from the Cerrado region of Sao Paulo State, Ocotea corymbosa (Meins) Mez., O. elegans Mez. and Persea pyrifolia Nees and Mart. ex Nees resulted in the isolation of flavonoids, an ester of the 4-O-E-caffeoylquinic acid, an aromatic sesquiterpene besides furofuran lignans. This is the first chemical study on the leaves of Ocotea elegans and O. corymbosa as well as the first report of non-volatile compounds from Persea pyrifolia. (author)

  7. Spirometry reference values in the Brazilian population

    Directory of Open Access Journals (Sweden)

    R. Rufino

    Full Text Available The aim of the present study was to provide new spirometry reference equations in a sample of the Brazilian population for the following parameters: forced vital capacity (FVC, forced expiratory volume in 1 second (FEV1, FEV1/FVC ratio, peak of expiratory flow (PEF, forced expiratory flow at 50% (FEF50%, 75% average vital capacity (FEF25-75%, and average forced expiratory flow time (FEFT. This was a prospective study using results from chest radiographs, electrocardiograms, and questionnaires to investigate the participants' respiratory symptoms, sedentarism, and comorbidities (Charlson comorbidity index. From December 2010 to July 2014, individuals were randomly selected from various locations in the state of Rio de Janeiro. All individuals were examined by a single technician in the morning at the laboratory, and performed the spirometry with the same spirometer. Spirometry values were tabulated for the creation of three equation models: linear regression, logarithmic regression, and logarithms through a method that incorporates the lambda, median, and coefficient of variation (LMS method. Initially, 7003 individuals from both genders were contacted, and 454 were recruited. The data from the new equations were compared with one Brazilian and eight international equations, resulting in a high correlation (r>0.9. The values derived from the LMS method and linear regression were very similar (P>0.5, and both could be used to acquire the reference values for Brazilian spirometry. Data derived from the equations of this study were different from the current Brazilian equation, which could be justified by the different method used.

  8. Diagnosis of the Brazilian Nuclear Regulatory body

    International Nuclear Information System (INIS)

    Santos Gomes, Rogerio dos; Magalhaes Ennes Ennes, Edson Carlos

    2008-01-01

    This work has the objective to present the diagnosis of the existing structure in the Brazilian Government to ensure the radioprotection and nuclear safety in the country, being compared the current situation with the conclusions presented in another studies, carried through in last 30 years, with special attention in the existence of the necessary available to support and independence of the national regulatory body for the development of the regulatory inspections activities in the radioprotection and nuclear safety. (author)

  9. Sorption of fomesafen in Brazilian soils

    OpenAIRE

    Silva,G.R.; D'Antonino,L.; Faustino,L.A.; Silva,A.A.; Ferreira,F.A.; Texeira,C.C.

    2013-01-01

    The study of the dynamics of a herbicide in the soil focus on the interactions with environmental components to obtain agronomic efficiency, ensuring selectivity to the culture and risk reduction of environmental impact. This study evaluated the sorption process of fomesafen in the Brazilian soils Ultisol, Cambisol, and Organosol. Besides soil, washed sand was used as an inert material for determination of the sorption ratio of fomesafen in the soil. The bioassay method was applied, using Sor...

  10. Older adults abuse in three Brazilian cities

    OpenAIRE

    Rodrigues, Rosalina Aparecida Partezani; Monteiro, Edilene Araújo; Santos, Ana Maria Ribeiro dos; Pontes, Maria de Lourdes de Farias; Fhon, Jack Roberto Silva; Bolina, Alisson Fernandes; Seredynskyj, Fernanda Laporti; Almeida, Vanessa Costa; Giacomini, Suelen Borelli Lima; Defina, Giovanna Partezani Cardoso; Silva, Luipa Michele

    2017-01-01

    ABSTRACT Objective: To analyze the police reports filed by older adults who suffered abuse in order to identify the socio-demographic characteristics of victims and aggressors, type of violence, location, as well as to compare rates in three Brazilian cities in the period from 2009 to 2013. Method: Ecological study, in which 2,612 police reports registered in Police Stations were analyzed. An instrument was used to obtain data from the victim, the aggressor and the type of violence. Result...

  11. Sexuality education in Brazilian medical schools.

    Science.gov (United States)

    Rufino, Andrea Cronemberger; Madeiro, Alberto; Girão, Manoel João Batista Castello

    2014-05-01

    Sexuality education has been valued since the 1960s in medical schools worldwide. Although recent studies reaffirm the importance of incorporating sexuality into medical education, there are data gaps concerning how this happens in Brazil. To understand how Brazilian medical school professors teach sexuality in undergraduate courses. An exploratory, cross-sectional descriptive study was conducted. A total of 207 professors from 110 Brazilian medical schools responded to an online semistructured questionnaire about the characteristics of the sexuality-related topics offered. The main variables assessed were contact hours devoted to sexuality, disciplines in which sexuality topics were taught, sexuality-related course titles, and sexuality-related topics addressed. Questionnaires were tabulated and analyzed using descriptive statistics for frequency distribution. The response rate to the questionnaire was 77.2%. Almost all professors (96.3%) addressed sexuality-related topics mainly in the third and fourth years as clinical disciplines, with a 6-hour load per discipline. Gynecology was the discipline in which sexuality-related topics were most often taught (51.5%), followed by urology (18%) and psychiatry (15%). Sexuality-related topics were addressed mainly in classes on sexually transmitted diseases and AIDS (62.4%) and on the anatomy and physiology of the reproductive system (55.4%). About 25% of the professors reported teaching courses with a sexuality-related title. There was emphasis on the impact of diseases and sexual habits (87.9%) and sexual dysfunction (75.9%). Less than 50% of professors addressed nonnormative sexuality or social aspects of sexuality. The teaching of sexuality in Brazilian medical schools occurred in a nonstandardized and fragmented fashion across several disciplines. The topic was incorporated with an organic and pathological bias, with a weak emphasis on the social aspects of sexuality and the variety of human sexual behaviors. The

  12. Zirconium oxide obtainment from brazilian zircon concentrate

    International Nuclear Information System (INIS)

    Ribeiro, S.; Martins, A.H.

    1991-01-01

    This work presents the experimental results of studies about alkaline melting, acid leaching and sulfation steps for obtention of zirconium oxide and partially stabilized zirconia by yttrium and rare-earth coprecipitation in chlorine medium, starting from the brazilian zircon concentrate. Using statistical methods of factorial design and the Packett-Burman approach, the results are discussed and the optimal conditions of the production steps were determined. (author)

  13. The nuclear importation and exportation - The Brazilian situation

    International Nuclear Information System (INIS)

    Coimbra, G.L.

    1985-01-01

    The panorama of Brazilian economy emphasizing the measurements adopted by Brazilian government referring to importation and exportation policy is presented. The Brazilian Nuclear Program knows the nuclear trade gives good economic perspective. In the context of importation and exportation policy the laws concerned to nuclear trade transactions, taxes, national organizations responsible by the external trade policy and their attributions are presented. (M.C.K.) [pt

  14. The impact of turn around time in Brazilian Navy inventories

    OpenAIRE

    Casagrande, Mauricio

    2000-01-01

    Approved for public release; distribution is unlimited. This thesis analyzes how the operation of helicopters produced and supported by manufacturers in various countries affect Brazilian Navy repairable inventories levels and costs. The research is based on a scenario where the Brazilian Navy operates 68 helicopters, manufactured by contractors in USA, France, England and Italy, and the Brazilian Navy relies on these manufacturers for depot-level maintenance. We develop a simulation model...

  15. Production of 57Co, 109Cd, 111In and 117mSn using CV-28 cyclotron at IPEN-CNEN/SP

    International Nuclear Information System (INIS)

    Osso, J.A. Jr.; Landini, L.; Lion, L.F.; Moraes, V.

    2001-01-01

    222MBq (6mCi) of 57 Co and impurity levels of 1.13 and 1.29% for 56 Co and 58 Co, respectively, at delivery time. In order to achieve these results, a chemical separation method was developed with a separation yield of 93% for 5 '7Co and a negligible loss of Ni. A composite target of Ni and Ag was prepared and a chemical separation method proposed to allow the separation between the targets and the products of interest, 57 Co and 109 Cd. The yields obtained in the irradiation of the composite target were: 947.94kBq/μA.h (25.62μCi/μA.h) of 57 Co - direct reaction, 259-00kBq/μA.h (7μCi/μA.h) of 57 Co - indirect reaction (11.31 days after EOB) and 71.41kBq/μA.h (1.93μCi/μA.h) of 109 Cd, which showed the efficiency of its use, as well as the chemical separation, with a yield of 80% for 57 Co and 109 Cd. 111 ln (t 1/2 =67.5 h) has appropriate characteristics for Diagnosis in Nuclear Medicine due to its decay mode (100% by electron capture) and its adequate half-life to slow biological studies, that makes it one of radioisotopes of interest of Brazilian Physicians. It can also be used in angular correlation studies in Nuclear Physics. 111 In was produced by the 112 Cd(p,2n) 111 ln reaction, that has the highest yield. The Cd targets were prepared by electroplating of CdSO 4 solution in copper and copper/nickel backings. After being irradiated, a chemical separation was performed by an acetic acid extraction method, with an overall recovery yield for 111 ln higher than 95%. The level of the chemical impurities of Cd, Ni and Cu were bellow than the permissible values. 117m Sn (t 1/2 =14 d) has suitable characteristics of decay to be used as a tracer of SnCl 2 in the labeling of organic molecules with 99m Tc and also in radiotherapeutical applications. It was prepared by the irradiation of natural tin through the nuclear reactions nat Sn(p,xn) 117 Sb→ 117m Sn. The production thick target yield of 117m Snnn was 784.4kBq/μA.h (21.20μCi/μA.h) and with the proper

  16. The Brazilian Public Health in Contemporary Capitalism.

    Science.gov (United States)

    Junqueira, Virgínia; Mendes, Áquilas N

    2018-01-01

    This article examines some political and economic facts that led to an intensification of austerity measures by the Brazilian government, including ones against the Unified Health System (SUS) and its progressive dismantling. In a country where fundamental human rights were never fully respected, nowadays social and labor rights are under severe attacks. The deepening of the capital crisis and the rise of interest-bearing capital dominance have been causing unemployment, social insecurity growth, and resulting public fund appropriation by the private capital. The Brazilian governments in the 1990s and 2000s have implemented deeper cuts in social policy expenditure, freezing security benefits, privatizing services, and prioritizing the payment of public debt interests. The right wing's project involves the demoralization of not only the Workers' Party but also the left as a whole, so that the adoption of austerity measures could be achieved without popular resistance. It is the duty of the Brazilian left wing to denounce such a project and to provoke firm initiatives to rebuild its bonds with the working class.

  17. The brazilian indigenous planetary-observatory

    Science.gov (United States)

    Afonso, G. B.

    2003-08-01

    We have performed observations of the sky alongside with the Indians of all Brazilian regions that made it possible localize many indigenous constellations. Some of these constellations are the same as the other South American Indians and Australian aborigines constellations. The scientific community does not have much of this information, which may be lost in one or two generations. In this work, we present a planetary-observatory that we have made in the Park of Science Newton Freire-Maia of Paraná State, in order to popularize the astronomical knowledge of the Brazilian Indians. The planetary consists, essentially, of a sphere of six meters in diameter and a projection cylinder of indigenous constellations. In this planetary we can identify a lot of constellations that we have gotten from the Brazilian Indians; for instance, the four seasonal constellations: the Tapir (spring), the Old Man (summer), the Deer (autumn) and the Rhea (winter). A two-meter height wooden staff that is posted vertically on the horizontal ground similar to a Gnomon and stones aligned with the cardinal points and the soltices directions constitutes the observatory. A stone circle of ten meters in diameter surrounds the staff and the aligned stones. During the day we observe the Sun apparent motions and at night the indigenous constellations. Due to the great community interest in our work, we are designing an itinerant indigenous planetary-observatory to be used in other cities mainly by indigenous and primary schools teachers.

  18. Indoor Air Quality in Brazilian Universities

    Directory of Open Access Journals (Sweden)

    Sonia R. Jurado

    2014-07-01

    Full Text Available This study evaluated the indoor air quality in Brazilian universities by comparing thirty air-conditioned (AC (n = 15 and naturally ventilated (NV (n = 15 classrooms. The parameters of interest were indoor carbon dioxide (CO2, temperature, relative humidity (RH, wind speed, viable mold, and airborne dust levels. The NV rooms had larger concentration of mold than the AC rooms (1001.30 ± 125.16 and 367.00 ± 88.13 cfu/m3, respectively. The average indoor airborne dust concentration exceeded the Brazilian standards (<80 µg/m3 in both NV and AC classrooms. The levels of CO2 in the AC rooms were significantly different from the NV rooms (1433.62 ± 252.80 and 520.12 ± 37.25 ppm, respectively. The indoor air quality in Brazilian university classrooms affects the health of students. Therefore, indoor air pollution needs to be considered as an important public health problem.

  19. Resistance Stories of African-Brazilian Women

    Directory of Open Access Journals (Sweden)

    Stela Nazareth Meneghel

    2005-01-01

    Full Text Available This study consists of an intervention using narrative workshops as a device to stimulate the empowerment of women. Ten women, victims of gender violence, took part in a workshop developed by non-governmental organization for African-Brazilian women Maria Mulher, which gives assistance to women living in Vila Cruzeiro do Sul, in the city of Porto Alegre. The main objective of the research was to debate questions related to gender and violence, making use of stories and histories related to the feminine, specifically African-Brazilian stories. Five meetings were held, where the women told and were told stories, took part in group discussions, experiences and rituals. The workshops gave those women a space where they could tell and hear stories, take part in the rituals of the orixás [African-Brazilian deities] of the black culture and tell their personal histories using those experiences. This intervention was an attempt at invoking different subjective experiences, and made it possible to empower the women who took part in the research, contributing for the rescue of the individual and collective memory of this group.

  20. Cesium accumulation in native trees from the Brazilian Cerrado

    International Nuclear Information System (INIS)

    Franca, E.J.D.; Miranda, M.V.F.E.S.; Santos, T.O.; Cantinha, R.S.; Fernandes, E.A.D.N.

    2016-01-01

    Even considered not essential for plants, cesium may cycle within forest ecosystems. Taking into account the lack of knowledge on the distribution of this chemical element in Brazilian ecosystems, this work encompasses the unexpected cesium accumulation in native plant leaves from Cerradao, a Brazilian hotspot of world biodiversity. Some trees were Cs accumulators, achieving mass fractions in leaves 700 times higher (up to 12.7 mg kg -1 ) when compared to other Brazilian native tree leaves from the Atlantic Forest. In fact, such trace element accumulation in leaves was not previously noticed for Brazilian ecosystems despite the intra- and inter-species variability observed in Cerrado tree leaves. (author)

  1. Brazilian energy statistics - 1990. Annual bulletin of the Brazilian National Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1990-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydroelectric energy, petroleum, natural gas and coal. It contains data on ethyl alcohol derived from sugar cane since it is of major importance in Brazil's energy scenario. The Brazilian Power Sector's Environmental Master Plan is also described including the expansion planning and the handling of socio-environmental issues; the power sector's evolution in the treatment of socio-environmental issues; the guidelines for socio-environmental planning and management and the institutional and technical development in the socio-environmental area. 15 figs., 16 tabs

  2. Activities of Brazilian Nuclear Energy Commission in the field of nuclear power plant licesing

    International Nuclear Information System (INIS)

    Alves, R.N.

    1986-01-01

    The objectives, the procedures and the ways of implementation of measures aiming at safety use of nuclear energy are presented. The juridical aspects in the licensing area and the regulatory activities used by CNEN. The description of nuclear power plants and the methodology used in studies of environmental protection and radiation protection are presented [pt

  3. Inspection of the brazilian nuclear regulatory body in the area of radiotherapy. A critical analysis

    International Nuclear Information System (INIS)

    Brito, Ricardo Roberto de Azevedo

    2005-01-01

    The National Commission of Nuclear Energy (CNEN) is responsible in Brazil for the activities of licensing and control of radioactive installations in the radiotherapy medical area. The majority of these activities are developed by CNEN Co-ordination of Radioactive Installations (CORAD). One of the necessary stages for the development of licensing and control activities is the inspection of radiotherapy services (clinics and hospitals). Almost all of these inspections are carried out by CNEN Inst. of Radiation Protection and Dosimetry (IRD), through its Service of Medical Physics in Radiotherapy and Nuclear Medicine (SEFME). This work makes a survey of the main nonconformities found during ten years of inspections in radiotherapy services (1995 - 2004) and analyses the efficiency of these inspections in making the radiotherapy services develop their activities according to the norms in vigour in the country and adopt corrective actions against, at least, the nonconformities evidenced by CNEN inspectors. Additionally, it analyses the possibility of improvement and / or the optimisation of the process, through a procedure able to be unified and controlled, aiming a prompt communication to those involved in the licensing process (SEFME and CORAD) about the attendance by the radiotherapy services to the non-conformity items observed during the inspection. (author)

  4. The operational and logistic experience on transportation of Brazilian spent fuel to USA

    International Nuclear Information System (INIS)

    Maiorino, Jose Rubens; Frajndlich, Roberto; Mandlae, Martin; Bensberg, Werner; Renger, August; Grabow, Karsten

    2000-01-01

    A shipment of 127 spent MTR fuel assemblies was made from IEA-R1 Research Reactor located at the Instituto de Pesquisas Energeticas e Nucleares (IPEN-CNEN/SP), Sao Paulo, Brazil to Savannah River Site Laboratory in the United States. This paper describes the operational and logistic experience on this transportation made by IPEN staff and the Consortium NCS/GNS. (author)

  5. Brazilian energy statistics - 1998. Annual bulletin of the Brazilian Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1998-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydroelectric energy, petroleum, natural gas and coal. It also contains data on ethyl alcohol derived of sugar cane since it is of special importance in Brazil's energy scenario

  6. Brazilian energy statistics - 2000. Annual bulletin of the Brazilian Committee of the World Energy Council

    International Nuclear Information System (INIS)

    2001-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydroelectric energy, petroleum, natural gas, nuclear energy and coal. It also contains data on ethyl alcohol derived of sugar cane since it is of special importance in Brazil's energy scenario

  7. Brazilian energy statistics - 1999. Annual bulletin of the Brazilian Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1999-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydroelectric energy, petroleum, natural gas, nuclear energy and coal. It also contains data on ethyl alcohol derived of sugar cane since it is of special importance in Brazil's energy scenario

  8. Brazilian energy statistics - 1991. Annual bulletin of the Brazilian National Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1991-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydraulic energy, petroleum, natural gas and coal. It contains data on ethyl alcohol derived from sugar cane since it is of special importance in Brazil's energy scenario. 13 figs., 22 tabs

  9. Brazilian energy statistics - 1994. Annual bulletin of the Brazilian Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1994-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydraulic energy, petroleum, natural gas and coal. It also contains data on ethyl alcohol derived from sugar cane since it is of special importance in Brazil's energy scenario. 10 figs., 11 tabs

  10. Brazilian energy statistics - 1996. Annual bulletin of the Brazilian Committee of the World Energy Council

    International Nuclear Information System (INIS)

    1996-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydroelectric energy, petroleum, natural gas and coal. It also contains data on ethyl alcohol derived of sugar cane since it is of special importance in Brazil's energy scenario. Domestic production, petroleum and petroleum product imports, as well as natural gas production statistics are furnished in this bulletin

  11. Linguistic Policies, Linguistic Planning, and Brazilian Sign Language in Brazil

    Science.gov (United States)

    de Quadros, Ronice Muller

    2012-01-01

    This article explains the consolidation of Brazilian Sign Language in Brazil through a linguistic plan that arose from the Brazilian Sign Language Federal Law 10.436 of April 2002 and the subsequent Federal Decree 5695 of December 2005. Two concrete facts that emerged from this existing language plan are discussed: the implementation of bilingual…

  12. An Optimality-Theoretic Analysis of Codas in Brazilian Portuguese

    Science.gov (United States)

    Goodin-Mayeda, C. Elizabeth

    2015-01-01

    Brazilian Portuguese allows only /s, N, l, r/ syllable finally, and of these, only /s/ is realized faithfully (as well as /r/ for some speakers). In order to avoid unacceptable codas, dialects of Brazilian Portuguese employ such strategies as epenthesis, nasal absorption, debucalization, and gliding. The current analysis argues that codas in…

  13. Effectiveness of business strategies in Brazilian textile industry

    OpenAIRE

    Batista, Paulo César de Sousa; Lisboa, João Veríssimo de Oliveira; Augusto, Mário Gomes; Almeida, Fátima Evaneide Barbosa de

    2016-01-01

    ABSTRACT This research analyses how the interaction between strategy capabilities, strategy types, strategy formulation quality and implementation capability affect organizational performance in Brazilian textiles companies. This article proposes and tests a conceptual framework, using a structural equation modeling of a set of 211 valid questionnaires on Brazilian textiles firms. The results support links between focus strategy and marketing capabilities, and between cost leadership strategy...

  14. DEA investment strategy in the Brazilian stock market

    OpenAIRE

    Newton da Costa, Jr.; Marcus Lima; Edgar Lanzer; Ana Lopes

    2008-01-01

    This paper presents a multi-period investment strategy using Data Envelopment Analysis (DEA) in the Brazilian stock market. Results show that the returns based on the DEA strategy were superior to the returns of a Brazilian stock index in most of the 22 quarters analyzed, presenting a significant Jensen's alpha.

  15. Energy economy and industrial ecology in the Brazilian cement sector

    International Nuclear Information System (INIS)

    Tavares, Marina Elisabete Espinho; Schaeffer, Roberto

    1999-01-01

    The article discusses the following issues of the Brazilian cement sector: the Brazilian cement main types specification, cement quantities evolution produced in Brazil from 1987 to 1997, energy conservation in the cement production process with additives, energy economy cost estimates from the utilization of additives, and several technologies energy economy cost used in the industrial sector

  16. VIII Brazilian Meeting on Simulational Physics (BMSP)

    International Nuclear Information System (INIS)

    Branco, N. S.; Figueiredo, W.; Plascak, J. A.; Santos, M.

    2016-01-01

    This special issue includes invited and selected articles of the VIII Brazilian Meeting on Simulational Physics (BMSP), held in Florianópolis, Santa Catarina, Brazil, from 3rd to 8th August, 2015. This is the eighth such meeting, and the second one to have contributed papers published in Journal of Physics: Conference Series (the other was the VII BMSP). The previous meetings in the BMSP series took place in the mountains of Minas Gerais, in the region of the Brazilian Pantanal, and in the shores of Paraíba. Now, for the first time, the Meeting was held in Florianópolis, with its pleasing shores, the capital of Santa Catarina state. The VIII BMSP brought together about 50 researchers from all over the world for a vibrant and productive conference. As in the previous meetings, the talks and posters highlighted recent advances in applications, algorithms, and implementation of computer simulation methods for the study of condensed matter, materials, and out of equilibrium, quantum and biologically motivated systems. We are sure that this meeting series will continue to be an important occasion for people working in simulational physics to exchange ideas and discuss the state of the art of this always expanding field. We are very glad to put together this special issue, and are most appreciative of the efforts of the editors of the Journal of Physics: Conference Series for making this publication possible. We are grateful for the outstanding work of the Florianopolis team, for the financial support of the Brazilian agencies CAPES and CNPq, and of the Federal Universities UFPB and UFSC. At last, but not least, we would like to acknowledge all of the authors for their written submissions. (paper)

  17. Smoking: what has been addressed in Brazilian journals.

    Science.gov (United States)

    Prado, Gustavo Faibischew; Lombardi, Elisa Maria Siqueira; Morais, Anna Miethke; Martins, Stella Regina; Santos, Ubiratan de Paula

    2012-12-01

    The topic of tobacco smoking, in its several aspects, has been receiving increasing attention among researchers over the past few years, which has been reflected in more data and more solid scientific literature on the subject in national journals. This article aims to review the studies that focused on smoking published between January 2010 and June 2012, in Arquivos Brasileiros de Cardiologia (Brazilian Archives of Cardiology), Brazilian Journal of Medical and Biological Research, Clinics (Sao Paulo), Jornal Brasileiro de Pneumologia (Brazilian Journal of Pulmonology), Revista da Associação Médica Brasileira (Journal of the Brazilian Medical Association) and Revista Brasileira de Cirurgia Cardiovascular (Brazilian Journal of Cardiovascular Surgery). During the aforementioned period 58 articles were published, 52 of which were original ones, addressing several aspects of smoking, such as effects on health, epidemiology, cessation and experimental studies.

  18. Radiogenic heavy minerals in Brazilian beach sand

    International Nuclear Information System (INIS)

    Malanca, A.

    1998-01-01

    Sand samples collected on the beaches of the 'radioactive' Brazilian town of Guarapari were first separated by flotation in bromoform and successively divided into various magnetic fractions with a Franz isodynamic separator. concentrations of background radionuclides in samples of monazite, ilmenite, and zircon were determined by a γ-ray spectrometer. Chemical composition of monazite, ilmenite and magnetite were assessed by means of an electron microprobe. Monazite resulted to be relatively rich in ThO 2 whose abundance ranged from 5.3 to 7.7 (wt%). (author)

  19. Women neurologist: a worldwide and Brazilian struggle

    Directory of Open Access Journals (Sweden)

    Marleide da Mota Gomes

    2011-10-01

    Full Text Available The main aim of this paper was to present some pioneer women neurologist, their struggle to pursue their career and the barriers mainly encountered at the beginning of their professional lives. It was also presented the progressive increasing of the feminine participation in medicine and in the neurology with study based on data of the School of Medicine of the Federal University of Rio de Janeiro and Brazilian Academy of Neurology. Their composition were analyzed according to gender, class and academic rank. In spite of this feminization, there is lack of a women's parallel advancement into leadership positions despite no visible barriers ("glass ceiling".

  20. The Brazilian deindustrialization: financialization is not guilty

    Directory of Open Access Journals (Sweden)

    MYLÈNE GAULARD

    2015-06-01

    Full Text Available The financialization of the Brazilian economy is often criticized as being responsible of the slowdown of capital accumulation in this country. Indeed, very high interest rates are maintained in order to finance the public debt, and this fosters capitalists to get more Treasury bonds rather than to invest in the productive area. Nevertheless, the evolution of the profit rate in this area also explains the particular relation existing between capitalists, finance and productive investment, as Marx showed it more than a century ago.

  1. Historical origins of Brazilian relative backwardness

    Directory of Open Access Journals (Sweden)

    ALEXANDRE RANDS BARROS

    2015-03-01

    Full Text Available This paper relies on some data to identify the 19th century as the major period in which Brazil economy lagged behind some chosen benchmarking countries, as the USA, Canada, New Zealand, Australia and some European periphery countries. To identify the reasons for this an exercise using immigration data was used to make a decomposition of the sources of growth of the proportion of the USA per capita GDP to the Brazilian one. The results indicate that the imported human capital was responsible for 59% to 88% of this total growth between 1820 and 1900.

  2. Aging, Gender and Sexuality in Brazilian Society

    OpenAIRE

    Guita Grin Debert

    2014-01-01

    Drawing on the interplay between gender, aging, and sexuality, the aim of this article is twofold: (1) to show how Brazilian gerontologists treat gender differences and sexual activity in old age; (2) to analyze the  ways  discourses regarding the aging body and sexuality are perceived and evaluated by older women and men . I argue that  attempts of gerontologists’ to eroticize old age have to contend with the widespread notion that the desire for sex is inevitably lost with age. Thus, in the...

  3. Biological screening of Brazilian medicinal plants

    Directory of Open Access Journals (Sweden)

    Tânia Maria de Almeida Alves

    2000-06-01

    Full Text Available In this study, we screened sixty medicinal plant species from the Brazilian savanna ("cerrado" that could contain useful compounds for the control of tropical diseases. The plant selection was based on existing ethnobotanic information and interviews with local healers. Plant extracts were screened for: (a molluscicidal activity against Biomphalaria glabrata, (b toxicity to brine shrimp (Artemia salina L., (c antifungal activity in the bioautographic assay with Cladosporium sphaerospermum and (d antibacterial activity in the agar diffusion assay against Staphylococcus aureus, Escherichia coli, Bacillus cereus and Pseudomonas aeruginosa. Forty-two species afforded extracts that showed some degree of activity in one or more of these bioassays.

  4. Brazilian exchange rate complexity: Financial crisis effects

    Science.gov (United States)

    Piqueira, José Roberto C.; Mortoza, Letícia Pelluci D.

    2012-04-01

    With the financial market globalization, foreign investments became vital for the economies, mainly in emerging countries. In the last decades, Brazilian exchange rates appeared as a good indicator to measure either investors' confidence or risk aversion. Here, some events of global or national financial crisis are analyzed, trying to understand how they influenced the "dollar-real" rate evolution. The theoretical tool to be used is the López-Mancini-Calbet (LMC) complexity measure that, applied to real exchange rate data, has shown good fitness between critical events and measured patterns.

  5. BRAZILIAN EDUCATION AND SURVIVAL STRATEGIES OF CAPITALISM

    Directory of Open Access Journals (Sweden)

    Adriana Almeida Sales de Melo

    2012-06-01

    Full Text Available In discussing the theme Imperialism, Crisis and education, the essay points out aspects of our historical totality in relation to recent crises through which it passed capitalism, and its relationship to changes in Brazilian educational policies. Education remains at the heart of development projects, as a producer of knowledge, as well as guiding the processes of social conformation. They also discussed the aftermath of the crisis: the rise of social inequality and the increase of labor exploitation. Make clear our project of society and education, as resistance movements to the survival of capitalism is a necessity in building movements of counter-hegemony.

  6. Brazilian energy balance 1999: calendar year 1998

    International Nuclear Information System (INIS)

    1999-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 1998. It is divided into nine sections: a summary from 1983 to 1998; energy supply and demand by source; energy consumption by sector; energy foreign trading; transformation centers balances; energy resources and reserves; energy and socio-economy; regional parameters, and appendices including installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  7. Brazilian energy balance 1995: calendar year 1994

    International Nuclear Information System (INIS)

    1995-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 1998. It is divided into nine sections: a summary from 1979 to 1994; energy supply and demand by source; energy consumption by sector; energy foreign trading; transformation centers balances; energy resources and reserves; energy and socio-economy; regional parameters, and appendices including installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  8. Brazilian energy balance 1997: calendar year 1996

    International Nuclear Information System (INIS)

    1997-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 1998. It is divided into nine sections: a summary from 1981 to 1996; energy supply and demand by source; energy consumption by sector; energy foreign trading; transformation centers balances; energy resources and reserves; energy and socio-economy; regional parameters, and appendices including installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  9. Brazilian energy balance 2000: calendar year 1999

    International Nuclear Information System (INIS)

    2000-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 1999. It is divided into nine sections: a summary from 1984 to 1999; energy supply and demand by source; energy consumption by sector; energy foreign trading; transformation centers balances; energy resources and reserves; energy and socio-economy; regional parameters, and appendices including installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  10. The status of the Brazilian spherical detector

    International Nuclear Information System (INIS)

    Aguiar, O D; Andrade, L A; Filho, L Camargo; Costa, C A; Araujo, J C N de; Neto, E C de Rey; Souza, S T de; Fauth, A C; Frajuca, C; Frossati, G; Furtado, S R; Furtado, V G S; Magalhaes, N S; Jr, R M Marinho; Matos, E S; Meliani, M T; Melo, J L; Miranda, O D; Jr, N F Oliveira; Ribeiro, K L; Salles, K B M; Stellati, C; Jr, W F Velloso

    2002-01-01

    The first phase of the Brazilian Graviton Project is the construction and operation of the gravitational wave detector Mario Schenberg at the Physics Institute of the University of Sao Paulo. This gravitational wave spherical antenna is planned to feature a sensitivity better than h = 10 -21 Hz -1/2 at the 3.0-3.4 kHz bandwidth, and to work not only as a detector, but also as a testbed for the development of new technologies. Here we present the status of this detector

  11. Brazilian sawn wood price and income elasticity

    Directory of Open Access Journals (Sweden)

    Rommel Noce

    2010-09-01

    Full Text Available This study estimated the sawn wood demand price and income elasticity. Specifically it was estimated the priceelasticity of sawn wood, the cross price elasticity of wood panels and the income elasticity of Brazilian GDP. A log-log model withcorrection through outline of the mobile average (MA(1 was used, adjusted for the period of 1971 to 2006, which showed to bestable, with satisfactory significance levels. It was observed that sawn wood demand is inelastic in relation to price and elastic inrelation to income.

  12. Reverse logistics in the Brazilian construction industry.

    Science.gov (United States)

    Nunes, K R A; Mahler, C F; Valle, R A

    2009-09-01

    In Brazil most Construction and Demolition Waste (C&D waste) is not recycled. This situation is expected to change significantly, since new federal regulations oblige municipalities to create and implement sustainable C&D waste management plans which assign an important role to recycling activities. The recycling organizational network and its flows and components are fundamental to C&D waste recycling feasibility. Organizational networks, flows and components involve reverse logistics. The aim of this work is to introduce the concepts of reverse logistics and reverse distribution channel networks and to study the Brazilian C&D waste case.

  13. Black swans in the brazilian stock market

    OpenAIRE

    Lovisolo,Hugo Jacob; Leal,Ricardo Pereira Câmara

    2013-01-01

    This study analyzes extreme values in the daily returns of 45 Brazilian stocks between 2 January 1995 and 18 March 2009. The incidence of observations outside the range of three standard deviationsfrom the mean is at least five times greater than under the normal distribution. The occurrence of extreme values in the upper tail is 1.13 times higher than in the lower. The average of the extreme positive returns is higher than that of extreme negative returns. Half percent of the days determined...

  14. Nickel exposure from keys: a Brazilian issue.

    Science.gov (United States)

    Suzuki, Nathalie Mie; Duarte, Ida Alzira Gomes; Hafner, Mariana de Figueiredo Silva; Lazzarini, Rosana

    2017-01-01

    Keys are a significant source of exposure to metal allergens and can be a relevant problem for nickel-allergic individuals. This study aimed to perform nickel and cobalt spot testing among the 5 most common Brazilian brands of keys. Among the tested keys, 100% showed positive result to nickel spot test, 83,3% presented strong positive reaction. 50% exhibited cobalt release as well. Nickel release from keys is very common in our country and may cause a negative impact on sensitized individual's quality of life. Study's results highlight the importance of establishing directives to regulate nickel release in Brazil.

  15. The Argentine-Brazilian fast reactor programme

    International Nuclear Information System (INIS)

    Gho, C.J.; Mauricio, A.

    1989-01-01

    This paper summarizes the Argentine-Brazilian Fast Reactor Programme and gives reasons for the decision of a binational venture. The work carried out by both countries is described, showing how they complement each other, with the corresponding saving of resources. The main objectives of the Programme and tentative schedules in three progressing integrating stages are given and the present nuclear know-how in each country is identified as a good starting point. The paper also gives some details regarding the economical and human resources involved. (author). 1 graph

  16. Brazilian energy balance 1996: calendar year 1995

    International Nuclear Information System (INIS)

    1996-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in every sector of the Brazilian economy, for the calendar year 1995. It's divided into nine sections, as follows: summary; energy supply and consumption by source; energy consumption by sector; energy foreign trading; transformation center balances ;energy resources and reserves; energy and socio economy; regional parameters; and appendices - installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  17. Brazilian energy balance 1998: calendar year 1997

    International Nuclear Information System (INIS)

    1998-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in every sector of the Brazilian economy, for the calendar year 1995. It's divided into nine sections, as follows: summary; energy supply and consumption by source; energy consumption by sector; energy foreign trading; transformation center balances ;energy resources and reserves; energy and socio economy; regional parameters; and appendices - installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances

  18. Radiation protection in the Brazilian universities

    International Nuclear Information System (INIS)

    Caballero, K.C.S.; Borges, J.C.

    1994-01-01

    A research covering 91 institutions was undertaken in order to elucidate how radiation protection were indeed fulfilled. A questionary including technical administrative and legal subjects was sent by mail and 36% of which were answered propitiating substantial data for analysis. Only in few cases universities have knowledge of basic procedures in radiation protection, claiming for the elaboration of a plan that could guide supervisors and workers in radiation protection in these institution. Based on the tree analysis technique proposed by IAEA, a Reference Radiation protection Program has been elaborated and proposed for Brazilian universities. (author). 14 refs, 1 figs

  19. Women neurologist: a worldwide and Brazilian struggle.

    Science.gov (United States)

    Gomes, Marleide da Mota

    2011-10-01

    The main aim of this paper was to present some pioneer women neurologist, their struggle to pursue their career and the barriers mainly encountered at the beginning of their professional lives. It was also presented the progressive increasing of the feminine participation in medicine and in the neurology with study based on data of the School of Medicine of the Federal University of Rio de Janeiro and Brazilian Academy of Neurology. Their composition were analyzed according to gender, class and academic rank. In spite of this feminization, there is lack of a women's parallel advancement into leadership positions despite no visible barriers ("glass ceiling").

  20. Panorama of the Brazilian correctional structure

    Directory of Open Access Journals (Sweden)

    Renata de Oliveira Cartaxo

    2014-04-01

    Full Text Available Objective: To describe, based on the Penitentiary Information Integrated System (Sistema Integrado de Informações Penitenciárias - Infopen, aspects of the national correctional structure, the convicts’ characteristics and the profiles of the existing professionals to guarantee the constitutional precept of healthcare. Methods: Descriptive study, on a documental basis, carried out from secondary data available in the Penitentiary Information Integrated System, where the Brazilian correctional structure was assessed, along with the prison inmate’s profile regarding personal characteristics and the committed crime, and the professionals involved in healthcare. Results: There are 298,275 vacancies, occupied by 496,251 convicts in 1,857 prisons. Concerning the inmates’ profile, it was observed that 92.3% (461,444 are male between 18 and 24 years old (25.6% - 126,929, dark-skinned (36.7% - 82,354, with incomplete elementary school (40.7% - 201,938, who mainly committed the drug smuggling crime (23.5% - 100,648. As to the composition of the health assistance team, it was evidenced a total amount of 5,132 professionals registered in the system. Conclusion: Based on the penitentiary information integrated system, the Brazilian correctional structure is characterized by presenting a vacancy deficit, caused by overcrowding and/or saturation of the existent prisons, what makes it especially difficult to guarantee the fulfillment of the inmates’ necessities. doi:10.5020/18061230.2013.p266

  1. OPERATIONS MANAGEMENT TOOLS IN BRAZILIAN SMALL COMPANIES

    Directory of Open Access Journals (Sweden)

    Tonny Kerley de Alencar Rodrigues

    2014-12-01

    Full Text Available This research has the objective was to characterize the small Brazilian companies about the knowledge of operations management tools that help in improving the administrative process for these organizations. For that we chose a more positivist strand which values quantitative aspects. The research can be descriptive and explanatory, applied and/or intervention. As for media, research can be classified as documentary, bibliographic and/or participant. The population for this study is composed by Brazilian small enterprises are characterized by having a lower or equal to R$ 3,600,000 (approximately 1,800,000 dollars gross annual income. To collect information regarding the diagnosis of the degree of knowledge of small entrepreneurs, it was used a structured questionnaire using gradual tracks in identification of the respondent and the firm. It was found that the majority of managers interviewed small enterprises does not use the operations management tools. Is because they do not know such tools or have no need for their use in their companies.

  2. The Determinants of Credit Rating: Brazilian Evidence

    Directory of Open Access Journals (Sweden)

    Flávia Cruz de Souza Murcia

    2014-04-01

    Full Text Available This study attempts to identify the determinant factors of credit rating in Brazil. The relevance of this proposal is based on the importance of the subject as well as the uniqueness of the Brazilian market. As for originality, the great majority of previous studies regarding credit rating have been developed in the US, UK and Australia; therefore the effect on other markets is still unclear, especially in emerging markets, like Brazil. We’ve used a Generalized Estimating Equations (GEE model considering a panel structure with a categorical dependent variable (credit rating and ten independent variables: leverage, profitability, size, financial coverage, growth, liquidity, corporate governance, control, financial market performance and internationalization. The sample consisted of 153 rating observations during the period of 1997-2011 for a total of 49 public firms operating in the Brazilian Market. Results showed that leverage and internationalization are significant at the 1% level in explaining credit rating. Performance in the financial market was significant at a 5% level; profitability and growth were also statistically significant, but at a 10% significance level.

  3. Brand Personality Dimensions in the Brazilian Context

    Directory of Open Access Journals (Sweden)

    Karlan Muller Muniz

    2012-04-01

    Full Text Available Brands may be perceived as possessing a set of distinct traits or characteristics, i.e., a personality, similar to aperson. Thus, the personality of a brand is relevant as a source of differentiation in an increasingly competitivemarket environment. In this study, the authors explore the dimensions of brand personality proposed by J. Aaker(1997, seeking to discover the particular evaluation dimensions of the Brazilian context. The study wasconducted in exploratory stages, beginning with a preparatory stage that was carried out by professionals andacademics from the fields of communication and marketing. This was followed by stages of conclusive researchusing an online survey with a sample of 1,302 Brazilian consumers. Two sub-samples were extracted: onecalibration sample for exploratory factor analysis and a validation sample to perform confirmatory factoranalysis in order to verify the convergent and discriminant validities of the final scale. Five dimensions of brandpersonality in Brazil were detected: credibility, joy, audacity, sophistication and sensitivity. These dimensionsshowed some differences in comparison with similar studies that had been carried out in other countries. Thestudy led to a scale of 28 items for measuring brand personality and made it possible to compare competingbrands in terms of brand personality.

  4. Environemtnal benefits of the Brazilian Ethanol Programme

    International Nuclear Information System (INIS)

    La Rovere, E.L.; Audinet, P.

    1993-01-01

    After nearly twenty years since it was first launched, the Brazilian Ethanol Programme to data remains the largest commercial application of biomass for energy production and use in the world. It succeeded in demonstrating the technical feasibility of large scale ethanol production from sugar cane and its use to fuel car engines. On social and economic grounds, however, its evaluation is less positive. The purpose of this study is to provide an updated overview of the perspectives for the Ethanol Programme under the light of increasingly important local and global environmental concerns. Major results show that after oil prices supported upon the basis of its contribution to curb the increase of air pollution in Brazilian cities and of the greenhouse effect. It is concluded that the very survival of the Ethanol Programme, depends upon adequate economic compensation considering its global environmental benefits. These are appraised with two scenarios based on the use of a Markal-like model to define the range and costs of curbing greenhouse gases with a policy aiming at extending the Ethanol Programme

  5. Mapping Brazilian Cropland Expansion, 2000-2013

    Science.gov (United States)

    Zalles, V.; Hansen, M.; Potapov, P.

    2016-12-01

    Brazil is one of the world's leading producers and exporters of agricultural goods. Despite undergoing significant increases in its cropland area in the last decades, it remains one of the countries with the most potential for further agricultural expansion. Most notably, the expansion in production areas of commodity crops such as soybean, corn, and sugarcane has become the leading cause of land cover conversion in Brazil. Natural land covers, such as the Amazon and Cerrado forests, have been negatively affected by this agricultural expansion, causing carbon emissions, biodiversity loss, altered water cycles, and many other disturbances to ecosystem services. Monitoring of change in cropland area extent can provide relevant information to decision makers seeking to understand and manage land cover change drivers and their impacts. In this study, the freely-available Landsat archive was leveraged to produce a large-scale, methodologically consistent map of cropland cover at 30 m. resolution for the entire Brazilian territory in the year 2000. Additionally, we mapped cropland expansion from 2000 to 2013, and used statistical sampling techniques to accurately estimate cropland area per Brazilian state. Using the Global Forest Change product produced by Hansen et al. (2013), we can disaggregate forest cover loss due to cropland expansion by year, revealing spatiotemporal trends that could advance our understanding of the drivers of forest loss.

  6. Revision of giftedness on brazilian periodic publication

    Directory of Open Access Journals (Sweden)

    Tatiana de Cássia Nakano

    2012-08-01

    Full Text Available The definition of giftedness is related to the existence of high abilities in several and different fields and involves the study of process as intelligence, motivation, creativity and leadership. Due to the lack of research in this area, the present study aimed to review researches about giftedness on Brazilian periodic publications, in two databases: Scielo and Pepsic. The results pointed to the existence of 19 theorical and empiric articles, published between 2002 and 2009, that approached distinct dimensions of giftedness: conceptual definitions, models and forms of identification, models of attendance, Brazilian laws to guide the performance, researches with teachers, family and school environment, studies of cognitive, social and emotional dimension, finally behaviors and emotional disorders related to the giftedness. The articles analysis allowed concluding the recent interest for the theme, it was observed divergences in the definition of the concept, the lack of specific tests, with validity and standards, beyond the recognition of the importance of the school environment and the psychologis

  7. International HR Strategy of Brazilian Technology Multinationals

    Directory of Open Access Journals (Sweden)

    Patricia Morilha Muritiba

    2010-10-01

    Full Text Available Four cases of Brazilian Multinationals from the information technology [IT] sector were compared in their international Human Resources strategy. The analysis is focused on the development and application of two research models. One analyzes the level of subsidiary autonomy in terms of strategic HR decisions, including difficult decisions regarding coordination in multinationals, following the theoretical approach of the autonomy of subsidiaries (Kidger, 2002; Nohria & Ghoshal, 1997. The other is related to the level of internationalization of HR strategies, defined as the capacity to take advantage of globalization, providing the best resources for the company regardless of where they are located (Sparrow, 2007. Both models were applied in a multiple case study method (Eisenhardt, 1989. Data were collected through semi-structured interviews and company reports, and analyzed through content analysis. The results show: (a a more centralizing characteristic of the multinational companies examined, despite the limitations of this choice as shown by the literature; and (b that Brazilian IT multinationals tend to rely more on their national competencies when managing human resources instead of going global to aggregate differentiated competencies.

  8. Gout treatment: survey of Brazilian rheumatology residents.

    Science.gov (United States)

    Amorim, Rodrigo Balbino Chaves; Vargas-Santos, Ana Beatriz; Pereira, Leticia Rocha; Coutinho, Evandro Silva Freire; da Rocha Castelar-Pinheiro, Geraldo

    2017-05-01

    To assess the current practices in gout management among Brazilian rheumatology residents. We performed a cross-sectional online survey among all the rheumatology residents and those rheumatologists who had just completed their training (post-residency (PR)) regarding their approach to gout management. Results were compared with the 2012 American College of Rheumatology (ACR) gout guidelines and with the responses of a previous survey with a representative sample of practicing Brazilian rheumatologists (RHE). We received 224 responses (83%) from 271 subjects. Among all respondents, the first-choice treatment for gout flares was the combination of a nonsteroidal anti-inflammatory drug + colchicine for otherwise healthy patients. A target serum urate 75%. Less than 70% reported starting allopurinol at low doses (≤100 mg/day) for patients with normal renal function and gout guidelines, especially among PR. However, some important aspects of gout management need improvement. These results will guide the development of a physician education program to improve the management of gout patients in Brazil.

  9. Brazilian obesity prevention and control initiatives.

    Science.gov (United States)

    Jaime, P C; da Silva, A C F; Gentil, P C; Claro, R M; Monteiro, C A

    2013-11-01

    Obesity prevalence in the Brazilian adult population is 12.5% among men and 16.9% among women. Obesity control has been a subject of concern in Brazilian health policies since the publication of the National Food and Nutrition Policy in 1999. The initiatives include a comprehensive national intersectorial plan for obesity prevention and control focused on confronting its social and environmental causes, development of a food and nutrition education framework aimed at intersectorial public policies in the food and nutritional security field, promotion and provision of healthy food in school environments (linked to family farming), structuring nutrition actions in primary healthcare in the national healthcare system, promoting community physical activity, food regulation and control, and encouragement of public participation and food control. We conclude that several initiatives have been developed in Brazil to deal with the challenge of implementing an intergovernmental, intersectorial response to reverse the rising overweight and obesity rates. The success of this response will depend on a governance model that promotes joint and integrated action by different sectors and active participation of society to consolidate the actions, places and laws that protect health and promote healthy lifestyles. © 2013 The Authors. Obesity Reviews published by John Wiley & Sons Ltd on behalf of the International Association for the Study of Obesity.

  10. The Brazilian nuclear power manpower development programme

    International Nuclear Information System (INIS)

    Barbalho, A.R.; Spitalnik, J.; Machado, J.B.

    1983-01-01

    Since the early stages of decision making, manpower availability has been recognized to be a key factor for the implementation of Brazil's nuclear power programme. Though care has been given to securing an industrial base and financial resources, the consequences of a lack of sufficient qualified manpower could be critical for the success of the whole programme. The broad scope of the Brazilian nuclear power programme which, as a main concept, aimed at establishing in the country a complete fuel cycle industry together with the construction of nuclear power plants, added another burden to the already complex task of providing appropriate human resources when advanced technologies are introduced in a developing country. Thus, not only the work-force required for nuclear power plant operation but also that needed for plant design, component manufacture, fuel cycle plant design and operation, had to be made available in number and qualification in accordance with the standards of the nuclear industry. The feasibility of the Brazilian programme depended on a complete transfer of technology, essentially achieved through personnel training. Again, the process of manpower preparation for an efficient know-how transfer required careful planning, and the great difficulty in its implementation was the lack of reliable experience at the time. (author)

  11. Brazilian energy balance 2002: calendar year 2001

    International Nuclear Information System (INIS)

    2002-12-01

    The Brazilian Energy Balance 2002, based on 2001 data, contains the information related to the supply and consumption of the primary and secondary energy sources, provided by data and information of responsible sectors. This version presents important differences in relation to the previous editions, new technical concepts were introduced for the treatment of calorific powers of energy sources in the composition and consolidation of data, and also in the structure of its contents. The Balance 2002 was structured in the same way of the last edition, divided in 8 chapters, as follows: summary of the relevant indicators of 2001 and consolidated data of production, consumption and external dependence on energy, and also the sectorial composition of the consumption of the different groups of energy sources - period 1970/2001; energy supply and demand by source - 1986/2001; energy consumption by sector - 1986/2001; energy foreign trading - 1986/2001; transformation centers balances - 1986/2001; energy resources and reserves - 1973/2001; energy and socio-economy - 1986/2001; regional parameters and appendices including: installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances - 1970/2001,in the 'kcal' unit, calculated in PCI- Inferior Calorific Power. This new model has the intention to approximate the Brazilian Energy Balance to the international methodologies, mainly to the OECD balances

  12. Brazilian law for scientific use of animals.

    Science.gov (United States)

    Marques, Ruy Garcia; Morales, Marcelo Marcos; Petroianu, Andy

    2009-01-01

    The Brazilian scientific community claimed for a definitive systematization and for comprehensive and realistic national rules, to provide guidance and regulation, instead of sanctions, so that the question of scientific research involving animals could be better contemplated. This is beginning to occur now with Law no. 11.794, sanctioned by the President of the Republic on November 8, 2008. To describe the evolution of Brazilian regimentation for scientific use of animals and to analyze Law no. 11.794. The legislation about the use of animals in teaching and in scientific research in Brazil and in Rio de Janeiro State was identified and discussed. Until now, there was no updated general and systematizing rule regarding animal vivisection and experimentation for didactic or scientific purposes. The only specific law dates back to 1979 and was not regimented. More recent laws equated the practice of scientific experiments to acts of abuse and mistreatment of animals, when alternative technology was available. Municipal laws that restricted the scientific practice of vivisection and experimentation with animals were created in the cities of Rio de Janeiro and Florianopolis. With the claim and collaboration of the scientific community, the sanction of Law no. 11.794 regarding the scientific use of animals represented an invaluable advance in spite of the presence of some points that eventually may require another type of treatment. The new Law states that it will be regimented within 180 (one-hundred-and-eighty) days, when some of these points could be better elucidated.

  13. NASALIZATION IN BRAZILIAN PORTUGUESE: AN AUTOSEGMENTAL (REVIEW

    Directory of Open Access Journals (Sweden)

    Consuelo de Paiva Godinho COSTA

    2015-06-01

    Full Text Available We propose to make a brief review on nasalization phenomena studies in Portuguese, aiming the phonological process of nasal harmonization that occurs in the variety of Brazilian Portuguese spoken in Vitória da Conquista-BA and region, a phenomenon hitherto not described for any Portuguese dialect. To do so, we consider as fundamental, D’Angelis (2002 analysis, which incorporates relevant concepts presented by Trubetzkoy, from the Prague School, and some points of Camara Jr. propose. We also propose to update the discussion with the approaches along the lines of auto segmental phonology, incorporating some insights of Piggott (1992, discussing with other analyzes for nasalization phenomena in other languages, especially Guarani (language of Tupi-Guarani Linguistic Family, as proposed by Costa (2010, which deals with the phonological processes involving nasality and nasal harmony in Brazilian indigenous languages , in order to verify if the researches on nasality phenomena in other languages can shed some light on the processes that occur in Portuguese.

  14. The Brazilian Pampa: A Fragile Biome

    Directory of Open Access Journals (Sweden)

    Valdir Marcos Stefenon

    2009-12-01

    Full Text Available Biodiversity is one of the most fundamental properties of Nature. It underpins the stability of ecosystems, provides vast bioresources for economic use, and has important cultural significance for many people. The Pampa biome, located in the southernmost state of Brazil, Rio Grande do Sul, illustrates the direct and indirect interdependence of humans and biodiversity. The Brazilian Pampa lies within the South Temperate Zone where grasslands scattered with shrubs and trees are the dominant vegetation. The soil, originating from sedimentary rocks, often has an extremely sandy texture that makes them fragile—highly prone to water and wind erosion. Human activities have converted or degraded many areas of this biome. In this review we discuss our state-of-the-art knowledge of the diversity and the major biological features of this regions and the cultural factors that have shaped it. Our aim is to contribute toward a better understanding of the current status of this special biome and to describe how the interaction between human activities and environment affects the region, highlighting the fragility of the Brazilian Pampa.

  15. [Mineral waters from several Brazilian natural sources].

    Science.gov (United States)

    Rebelo, M A; Araujo, N C

    1999-01-01

    To divulge information on the chemical composition and physical-chemical features of some mineral waters from Brazilian natural sources that will be of useful protocol investigation and patient advice. The survey was based on bottle labels of non-gaseous mineral waters commercially available in the city of Rio de Janeiro. The íon concentration of each mineral was calculated from the salt content. 36 springs were enralled from different states of the country. The pH (25 degrees C), 4.1 to 9.3, varied on dependence of the source and it was linearey correlated with the cations calcium, magnesium and sodium and the anion bicarbonate. It was atributed to high alkalinity (about 70% of bicarbonate in the molecula-gram) of these salts. The calcium (0.3 to 42 mg/l), magnesium (0.0 to 18 mg/l) and bicarbonate (4 to 228 mg/l) contents are relatively low. The mineral content of the Brazilian springs enrolled in this survey is low; about 70% of the sources having calcium and magnesium less than 10 mg/l and 1.0 mg/l, respectively, similar to local tap water.

  16. The Brazilian education system. Students with disabilities

    Directory of Open Access Journals (Sweden)

    Roberto Dainese

    2010-07-01

    Full Text Available The Brazilian education system provides a specific form of organization for the inclusive education of students with disabilities. Law No. 9394 dated December 20, 1996, “Lei de diretrizes e bases da educação nacional”, presents in Chapter V the “educação especial" as a form of organization offered to students "portadores de Necessidades especiais”. Admission of students with disabilities in the Brazilian schools was characterized by several phases: the welfarist phase, the integration phase and the inclusion phase, which is the most recent one and now being debated. The presence of a special device fosters the differences, even when everybody enters the classbecause a separation perspective damps down all the procedural and design efforts towards a true integration, holding back collaboration and action sharing among teachers. We consider however effective an action that accompanies the gradual learning evolution mediating between the student with disabilities and peers, between him and the teachers, between him and the learning tools designed.

  17. Ochratoxin A in Brazilian green coffee

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    LEONI Luís A.B.

    2001-01-01

    Full Text Available Ochratoxin A is a nephrotoxic, teratogenic and imunotoxic compound produced by Aspergillus and Penicillium spp. It is a suspected carcinogen to humans and it is carcinogenic to rats. Recently it has drawn attention because it has been found in coffee and it has been the object of regulation by coffee importing countries. Brazil is the largest coffee producing country and its largest consumer. In order to conduct an initial assessment of the situation of the coffee produced in the country and offered to its population, one hundred and thirty two samples of Brazilian green coffee from 5 producing states (Minas Gerais, Paraná, São Paulo, Espírito Santo and Bahia and destined for the home market, were collected at sales points at the cities of Londrina and Santos, Brazil, and analyzed for ochratoxin A. The toxin was isolated in immunoaffinity columns and quantified by HPLC with florescence detection. The limit of detection was 0.7ng/g and the average RSD for duplicates of the samples was 11%. Twenty seven samples were found contaminated with the toxin and the average concentration for the contaminated samples was 7.1ng/g ochratoxin A. Neither the total number of defects nor the number of specific defects according to the Brazilian coffee classification system (black, partly -- black, sour, stinkers-black, stinkers-green, pod beans showed any relation to the contamination of the samples with ochratoxin A.

  18. Ticket consumption forecast for Brazilian championship games

    Directory of Open Access Journals (Sweden)

    Adriana Bruscato Bortoluzzo

    Full Text Available Abstract For the efficiency of sales and marketing management of athletic clubs, it is crucial to find a way to appropriately estimate the level of demand for sporting events. More precise estimates allow for an appropriate financial and operational plan and a higher quality of service delivered to the fans. The focus of this study is to analyze and forecast the ticket consumption for soccer games in Brazilian stadiums. We compare the results of the regression model with normally distributed errors (benchmark, the TOBIT model and the Gamma generalized linear model. The models include explanatory variables related to the economic environment, product quality, as well as monetary and non-monetary incentives that people are given to attend sporting events at stadiums. We show that most of these variables are statistically significant to explain the amount of fans that go to stadiums. We used different measures of accuracy to evaluate the performance of demand forecasts and concluded that Gamma generalized linear model presented better results to forecast the ticket consumption for Brazilian championship games, when compared to a benchmark.

  19. Demand for Life Annuities: a Brazilian Perspective

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    Thalita Amorim Vaz

    2012-10-01

    Full Text Available Because pension plans have been marketed using outdated technical premises, Brazilian insurance companies find themselves required to identify additional resources to ensure their ability to meet future benefit payments obligations. When calculating the additional amount of this provision, the parameters used are: mortality and disability decrements, the structure of interest rates, financial performance, cancellation fees and conversion rates. The aim of this study is to present the estimation of conversion rates based on a Probit Model. The data for this study was obtained through the transfer of restricted data from the portfolio of a company with relevant activity in the Brazilian insurance market, including a group of 14,511 individuals eligible for retirement in the period between January 1, 2005 and December 31, 2009. The resulting analysis of the data allows us to conclude that two factors — the volume of accumulated reserves and the classification of prices as actuarially fair —increase the propensity of an individual to convert resources upon retirement. In turn, retirement age and the need for liquidity reduce the propensity to convert resources upon retirement.

  20. Brazilian sandy beaches: characteristics, ecosystem services, impacts, knowledge and priorities

    Directory of Open Access Journals (Sweden)

    Antonia Cecília Zacagnini Amaral

    Full Text Available ABSTRACT Sandy beaches constitute a key ecosystem and provide socioeconomic goods and services, thereby playing an important role in the maintenance of human populations and in biodiversity conservation. Despite the ecological and social importance of these ecosytems, Brazilian sandy beaches are significantly impacted by human interference, chemical and organic pollution and tourism, as well as global climate change. These factors drive the need to better understand the environmental change and its consequences for biota. To promote the implementation of integrated studies to detect the effects of regional and global environmental change on beaches and on other benthic habitats of the Brazilian coast, Brazilian marine researchers have established The Coastal Benthic Habitats Monitoring Network (ReBentos. In order to provide input for sample planning by ReBentos, we have conducted an intensive review of the studies conducted on Brazilian beaches and summarized the current knowledge about this environment. In this paper, we present the results of this review and describe the physical, biological and socioeconomics features of Brazilian beaches. We have used these results, our personal experience and worldwide literature to identify research projects that should be prioritized in the assessment of regional and global change on Brazilian sandy beaches. We trust that this paper will provide insights for future studies and represent a significant step towards the conservation of Brazilian beaches and their biodiversity.

  1. Is there publication bias towards brazilian articles on cancer?

    Science.gov (United States)

    Loureiro, Luiz Victor Maia; Callegaro, Donato; Rocha, Altieres de Arruda; Prado, Bernard Lobato; Mutão, Taciana Sousa; Donnarumma, Carlos del Cistia; del Giglio, Auro

    2013-01-01

    ABSTRACT Objective: To investigate whether Brazilian articles on cancer are published in journals with an impact factor and/or repercussion (measured by the number of citations) inferior to those that come from foreign organizations. Methods: A search was carried out in PubMed for the MeSH term “neoplasm” with the limits clinical trial, affiliation of the Brazilian author(s), and interval from July 1st, 2009 to June 30, 2010. Selected for matching were non-Brazilian related articles published from three months prior to three months after the date of publication of the Brazilian study. The numbers of citations were obtained from two databases, as well as the impact factor for the journals in which the articles were published. Results: Fortythree national and 876 related international articles were identified. The Brazilian publications had a mean impact factor of 3.000 versus 3.430 of the international ones (p=0.041). There was no statistically significant difference as to the number of citations between the two groups. The affiliation of the first author with a Brazilian or foreign organization did not significantly influence the number of citations or the impact factor. Conclusion: Brazilian articles are significantly less accepted in journals with higher impact factors, although it does not compromise its repercussion on the scientific community. PMID:23579739

  2. Jorge Amado and the internationalization of brazilian literature

    Directory of Open Access Journals (Sweden)

    Elizabeth Lowe

    2013-02-01

    Full Text Available http://dx.doi.org/10.5007/2175-7968.2013v1n31p119 Jorge Amado (1912-2001 is the most translated Brazilian writer and the literary figure that has shaped the reception of Brazilian literature in the world.  He is credited with opening the international literary market to the post-dictatorship generation of Brazilian writers.  Yet Amado is also a controversial figure.  The debate around him is sparked by what some believe is sexual and ethnic stereotyping in his post-1958 works and the reinforcement of "paternalistic "racial views. His reception therefore is mixed. For his English-language readers, he is a fascinating source of exotic and titillating narratives about the vast, unknown country of Brazil, and for Brazilians he is either a "great ambassador of Brazilian culture around the world" or a faux populist who disguises sexist and racist attitudes behind charming prose. This paper will address Amado's literary career, his unique contributions to Brazilian letters, the challenges of translating his work, and his influence on the production of a new Brazilian literature for export

  3. The role of interest rates in the Brazilian business cycles

    Directory of Open Access Journals (Sweden)

    Nelson F. Souza-Sobrinho

    2011-09-01

    Full Text Available This paper offers additional insights on the relationship between interest rates and business cycles in Brazil. First, I document that Brazilian interest rates are very volatile, counter-cyclical and positively correlated with net exports, as observed in other emerging market economies. Next, I present a dynamic stochastic general equilibrium model in which firms face working capital constraints and labor supply is independent of consumption. This parsimonious model, appropriately calibrated to the Brazilian economy, predicts that interest rate shocks can explain about one third of output fluctuations and delivers business cycle regularities consistent with the Brazilian data.

  4. The mitogenome of Onchocerca volvulus from the Brazilian Amazonia focus

    Directory of Open Access Journals (Sweden)

    James L Crainey

    2016-01-01

    Full Text Available We report here the first complete mitochondria genome of Onchocerca volvulus from a focus outside of Africa. An O. volvulus mitogenome from the Brazilian Amazonia focus was obtained using a combination of high-throughput and Sanger sequencing technologies. Comparisons made between this mitochondrial genome and publicly available mitochondrial sequences identified 46 variant nucleotide positions and suggested that our Brazilian mitogenome is more closely related to Cameroon-origin mitochondria than West African-origin mitochondria. As well as providing insights into the origins of Latin American onchocerciasis, the Brazilian Amazonia focus mitogenome may also have value as an epidemiological resource.

  5. Brazilian energy statistics - 1989. Annual bulletin of the Brazilian National Committee of the World Energy Conference

    International Nuclear Information System (INIS)

    1989-01-01

    This bulletin deals with the primary sources that carry most weight in the Brazilian energy balance: hydraulic energy, petroleum, natural gas and coal. It contains data on ethyl alcohol derived from sugar cane and some aspects about nuclear energy in Brazil. Graphs, annual statistics and historical data of electric power, petroleum and petroleum products, natural gas, coal and alcohol are also included. 17 figs., 12 tabs

  6. Brazilian Feminism on the Rise : A case study on Brazilian feminist cyberactivism

    OpenAIRE

    Martini, Debora

    2016-01-01

    The Women’s Spring movement started in 2015 in Brazil. It is a brand new phenomenon where Brazilian feminists are taking advantage of the potential of the Internet and social media to publicize sexism and demand respect. This thesis investigates this movement through a case study of #primeiroassedio and #meuamigosecreto, with the objective to discover who the cyberactivists are, how cyberactivism happens in that context and if it influences offline life. A Primavera das Mulheres começou e...

  7. Smoking or health: the Brazilian option.

    Science.gov (United States)

    Lokschin, F; Barros, F C

    1984-01-01

    Tobacco plays a key role in both disease and the economy in Brazil. In 1981 about 135 billion cigarettes were smoked, and cigarette-related diseases far outnumber infections as the leading cause of death. Brazil is the 4th largest world producer and the 2nd largest exporter of tobacco. 2.1% of the total population -- 2.5 million people -- are maintained by tobacco-related activities. Cigarette sales taxes provide 11.6% of the country's total taxes. Involved in a deep economic crisis, Brazil depends on this revenue and has not introduced any measures to control or counteract the high pressure marketing of cigarette manufacturers. Ischemic heart disease is the leading cause of death in Brazil, taking 90,000 lives in 1979. Based on World Health Organization estimates, at least 25% of these deaths could be ascribed to smoking. Cancer is the 2nd largest cause of death. In 1979, 10% of 60,000 cancer deaths were from lung cancer. Based on estimate that 30% of cancer deaths are provoked by smoking, more than 20,000 of those deaths were caused by tobacco. In Brazil, lung cancer is the 2nd highest cause of death from cancer in men and 3rd among women. Smoking in Brazil is definitely associated with low birth weight, the single most important predictive factor of perinatal and infant mortality. Rural workers giving up subsistence crops to grow tobacco may also affect their children's health. Also in such low-income populations, expenditures for cigarettes leave less money for essential goods. As a result of the high tax rate and the enormous number of cigarettes sold, 11.6% of all the country's revenue comes from the tobacco industry. The Brazilian Association of Tobacco Industries has been trying to link cigarette sales to Brazilian social development but does not mention the cost of disease, disability, and early death provoked by smoking. In Brazil tobacco companies have a huge market free of constraints, and the country lacks consistent smoking control policies. Recently

  8. Greenhouse Gas Emissions from Brazilian Sugarcane Soils

    Science.gov (United States)

    Carmo, J.; Pitombo, L.; Cantarella, H.; Rosseto, R.; Andrade, C.; Martinelli, L.; Gava, G.; Vargas, V.; Sousa-Neto, E.; Zotelli, L.; Filoso, S.; Neto, A. E.

    2012-04-01

    Bioethanol from sugarcane is increasingly seen as a sustainable alternative energy source. Besides having high photosynthetic efficiency, sugarcane is a perennial tropical grass crop that can re-grow up to five or more years after being planted. Brazil is the largest producer of sugarcane in the world and management practices commonly used in the country lead to lower rates of inorganic N fertilizer application than sugarcane grown elsewhere, or in comparison to other feedstocks such as corn. Therefore, Brazilian sugarcane ethanol potentially promotes greenhouse gas savings. For that reason, several recent studies have attempted to assess emissions of greenhouse gases (GHG) during sugarcane production in the tropics. However, estimates have been mainly based on models due to a general lack of field data. In this study, we present data from in situ experiments on emission of three GHG (CO2, N2O, and CH4) in sugarcane fields in Brazil. Emissions are provided for sugarcane in different phases of the crop life cycle and under different management practices. Our results show that the use of nitrogen fertilizer in sugarcane crops resulted in an emission factor for N2O similar to those predicted by IPCC (1%), ranging from 0.59% in ratoon cane to 1.11% in plant cane. However, when vinasse was applied in addition to mineralN fertilizer, emissions of GHG increased in comparison to those from the use of mineral N fertilizer alone. Emissions increased significantly when experiments mimicked the accumulation of cane trash on the soil surface with 14 tons ha-1and 21 tons ha-1, which emission factor were 1.89% and 3.03%, respectively. This study is representative of Brazilian sugarcane systems under specific conditions for key factors affecting GHG emissions from soils. Nevertheless, the data provided will improve estimates of GHG from Brazilian sugarcane, and efforts to assess sugarcane ethanol sustainability and energy balance. Funding provided by the São Paulo Research

  9. Equity Market Timing: Testing Using Brazilian IPOs

    Directory of Open Access Journals (Sweden)

    José Luiz Rossi Jr

    2010-04-01

    Full Text Available This paper analyzes whether the behavior related to the equity market timing affected the recent IPO wave of Brazilian firms and exerted an impact on companies'capital structure. Using data from january 2004 to december 2007 the paper classifies the months in the sample in hot or cold according the number of IPOs that took place in each month. The paper confirms an oportunistic behavior by the firms that issue a higher volume of stocks in periods classified as hot. The paper also shows that the impact of this behavior on companies` capital structure is very limited. Although there is a reduction in companies` leverage right after the IPO, this returns to its previous level only a few quarters after the IPO.

  10. Aging, Gender and Sexuality in Brazilian Society

    Directory of Open Access Journals (Sweden)

    Guita Grin Debert

    2014-04-01

    Full Text Available Drawing on the interplay between gender, aging, and sexuality, the aim of this article is twofold: (1 to show how Brazilian gerontologists treat gender differences and sexual activity in old age; (2 to analyze the  ways  discourses regarding the aging body and sexuality are perceived and evaluated by older women and men . I argue that  attempts of gerontologists’ to eroticize old age have to contend with the widespread notion that the desire for sex is inevitably lost with age. Thus, in the retiree associations that were studied, men had a tendency to assume they are not ‘old’ because their erectile function was still in good condition, and divorced or widowed women, in senior citizen associations, tend to regard themselves as happy due to having freed themselves from the sexual obligations imposed by marriage. In both cases, the dominant belief that there is a loss of sexual desire in old age was reproduced.

  11. Measuring complexity in Brazilian economic crises.

    Directory of Open Access Journals (Sweden)

    Letícia P D Mortoza

    Full Text Available Capital flows are responsible for a strong influence on the foreign exchange rates and stock prices macroeconomic parameters. In volatile economies, capital flows can change due to several types of social, political and economic events, provoking oscillations on these parameters, which are recognized as economic crises. This work aims to investigate how these two macroeconomic variables are related with crisis events by using the traditional complex measures due to Lopez-Mancini-Calbet (LMC and to Shiner-Davison-Landsberg (SDL, that can be applied to any temporal series. Here, Ibovespa (Bovespa Stock Exchange main Index and the "dollar-real" parity are the background for calculating the LMC and SDL complexity measures. By analyzing the temporal evolution of these measures, it is shown that they might be related to important events that occurred in the Brazilian economy.

  12. Measuring complexity in Brazilian economic crises.

    Science.gov (United States)

    Mortoza, Letícia P D; Piqueira, José R C

    2017-01-01

    Capital flows are responsible for a strong influence on the foreign exchange rates and stock prices macroeconomic parameters. In volatile economies, capital flows can change due to several types of social, political and economic events, provoking oscillations on these parameters, which are recognized as economic crises. This work aims to investigate how these two macroeconomic variables are related with crisis events by using the traditional complex measures due to Lopez-Mancini-Calbet (LMC) and to Shiner-Davison-Landsberg (SDL), that can be applied to any temporal series. Here, Ibovespa (Bovespa Stock Exchange main Index) and the "dollar-real" parity are the background for calculating the LMC and SDL complexity measures. By analyzing the temporal evolution of these measures, it is shown that they might be related to important events that occurred in the Brazilian economy.

  13. Hereditary fructose intolerance in Brazilian patients

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    Eugênia Ribeiro Valadares

    2015-09-01

    Results and discussion: Age at diagnosis was between 10 and 32 months and the severity of the disease correlated with the increasing of age at diagnosis. The predominant symptoms were vomiting, weight loss, and hepatomegaly. Severe renal tubular acidosis manifested in one child. All patients had remission of symptoms after dietary modification. The sequencing of the ALDOB gene identified one homozygous patient for the mutation c.524C>A (p.A175D, while the others were compound heterozygous for c.360_363delCAAA (p.N120KfsX32, c.178C>T (p.R60X mutations, c.448G>C (p.A150P and c.524C>A (p.A175D. Clinical improvement of patients after dietary treatment is suggestive of the diagnosis, confirmed by molecular analysis. The prevalence of mutations found in our Brazilian patients is different from those of international literature.

  14. 12th Brazilian Meeting on Bayesian Statistics

    CERN Document Server

    Louzada, Francisco; Rifo, Laura; Stern, Julio; Lauretto, Marcelo

    2015-01-01

    Through refereed papers, this volume focuses on the foundations of the Bayesian paradigm; their comparison to objectivistic or frequentist Statistics counterparts; and the appropriate application of Bayesian foundations. This research in Bayesian Statistics is applicable to data analysis in biostatistics, clinical trials, law, engineering, and the social sciences. EBEB, the Brazilian Meeting on Bayesian Statistics, is held every two years by the ISBrA, the International Society for Bayesian Analysis, one of the most active chapters of the ISBA. The 12th meeting took place March 10-14, 2014 in Atibaia. Interest in foundations of inductive Statistics has grown recently in accordance with the increasing availability of Bayesian methodological alternatives. Scientists need to deal with the ever more difficult choice of the optimal method to apply to their problem. This volume shows how Bayes can be the answer. The examination and discussion on the foundations work towards the goal of proper application of Bayesia...

  15. Bidding strategies in Brazilian electricity auctions

    International Nuclear Information System (INIS)

    Azevedo, Erick M.; Correia, Paulo B.

    2006-01-01

    Double bilateral contract auctions for electric energy purchase and sale occur in Brazil. These auctions present incomplete information and possess some subjectivity in relation to the future scenario of the Brazilian electric system, inserted in the agent's bids. In this work, a model using Bayes' rule and the game theory is proposed to aid the agent in its bid definition. Through the existing relations between the Conditional probabilities of Bayes' Rule, the model transforms beliefs into information. In this way, the absence of information is supplied and the problem is transformed into a game with complete information. The present study has no worries in terms of transmission constraints, since they are not usually considered in the bilateral contract auctions in Brazil. At the end, Nash equilibrium (NE) can be found through the expected payoff matrix of each agent. (author)

  16. Brazilian energy balance 2004: calendar year 2003

    International Nuclear Information System (INIS)

    2004-01-01

    This report shows the energy flows of different primary and secondary sources, from the production to the final consumption in all the sectors of the Brazilian economy, for the calendar year 2003. It is divided into nine sections: a summary from 1970 to 2003; energy supply and demand by source, from 1988 to 2003; energy consumption by sector from 1988 to 2003; energy foreign trading also from 1988 to 2003; transformation centers balances in the same period; energy resources and reserves from 1973 to 2003; energy and socio-economy from 1988 to 2003; regional parameters, and appendices including installed capacity, international data, general structure of the balance, information processing, conversion units and consolidated energy balances. It also presents analytical texts on the main energy numbers for 2003 and also energy evolution in Brazil and energy expansion all over the world

  17. Black swans in the brazilian stock market

    Directory of Open Access Journals (Sweden)

    Hugo Jacob Lovisolo

    2013-08-01

    Full Text Available This study analyzes extreme values in the daily returns of 45 Brazilian stocks between 2 January 1995 and 18 March 2009. The incidence of observations outside the range of three standard deviationsfrom the mean is at least five times greater than under the normal distribution. The occurrence of extreme values in the upper tail is 1.13 times higher than in the lower. The average of the extreme positive returns is higher than that of extreme negative returns. Half percent of the days determined the outcome of the investment. Extreme values are at least ± 7%. Investors should assess whether they will keep their holdings when returns of such magnitude occur. The characteristics of empirical distributions of stock returns favor the passive investor and the use of weight constraints in portfolio allocation models.

  18. Progress toward Brazilian cesium fountain second generation

    Science.gov (United States)

    Bueno, Caio; Rodriguez Salas, Andrés; Torres Müller, Stella; Bagnato, Vanderlei Salvador; Varela Magalhães, Daniel

    2018-03-01

    The operation of a Cesium fountain primary frequency standard is strongly influenced by the characteristics of two important subsystems. The first is a stable frequency reference and the second is the frequency-transfer system. A stable standard frequency reference is key factor for experiments that require high accuracy and precision. The frequency stability of this reference has a significant impact on the procedures for evaluating certain systematic biases in frequency standards. This paper presents the second generation of the Brazilian Cesium Fountain (Br-CsF) through the opto-mechanical assembly and vacuum chamber to trap atoms. We used a squared section glass profile to build the region where the atoms are trapped and colled by magneto-optical technique. The opto-mechanical system was reduced to increase stability and robustness. This newest Atomic Fountain is essential to contribute with time and frequency development in metrology systems.

  19. An acoustic study of the Brazilian cuica

    Science.gov (United States)

    Wheeler, Paul A.

    2002-11-01

    The cuica is a friction drum of African origin played in the batucada (an ensemble of instruments used for the samba) during the Brazilian carnival. It is played by rubbing a bamboo rod which is connected to the center of a drum head, giving a rhythmic grunting sound. Pitch is changed by applying pressure to the membrane. This paper discusses several acoustic aspects of a folk cuica (made of a gourd) including the waveforms, spectra, and time envelopes produced. Rubbing the bamboo rod gives a primitive saw-toothed excitation, similar to a bowed violin string. This is connected to the center of a membrane which modifies and radiates the sound. The body of the cuica contributes little to the sound.

  20. Small Nominals in Brazilian Portuguese Copular Constructions

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    Patrícia Rodrigues

    2015-06-01

    Full Text Available The focus of this paper is copular clauses in Brazilian Portuguese like Mulher(es é complicado, in which the predicate exhibits an unmarked form for gender and number (masculine singular, despite the presence of the feminine and/or plural form of the noun in subject position. We reject the analyses that propose that (i there is a hidden infinitive clause in the subject position, (ii the agreement is an instance of semantic agreement, and (iii the DP subject is in A-bar position, and argue that the subject is a Small Nominal (they are not projected as full DPs which lacks index features that trigger external agreement (Pereltsvaig 2006.

  1. μ-SRXRF characterization of Brazilian emeralds

    Science.gov (United States)

    Curado, J. F.; Radtke, M.; Buzanich, G.; Reinholz, U.; Riesemeier, H.; Guttler, R. A. S.; Rizzutto, M. A.

    2014-04-01

    The aim of the present study is to characterize emeralds from different mines of Brazil by using Synchrotron Radiation X-ray Fluorescence Microanalysis (μ-SRXRF). The advantage of this technique is that we can analyze a homogeneous, inclusion free area of the stone with the microbeam to distinguish the elemental fingerprint according to the provenance of the emerald. A total of 47 samples belonging to 5 different Brazilian mines were studied in this work and 28 elements were identified. By means of Principal Component Analysis (PCA) it is possible to build different groups according to the provenance of the stones, which allows to assign samples of unknown origin to the according mine.

  2. Globalization and the Brazilian balance accounts

    International Nuclear Information System (INIS)

    Urbina, Ligia M. Soto; Cabral, Arnoldo S.; Vieira, Wilson J.

    1999-01-01

    The globalization of the world economy calls for a country specialization with new structures for the product sectors and an increase in the competitiveness in areas of specialization. This process requires the amplification of markets and the adoption of technological innovations which increase the volume of economic trade, but also change trade relations. This process is made possible because of price stabilization and the stability and transparency of the exchange rate policy of various countries. In this work it is shown the opportunity to place nuclear energy as one of the sectors in which Brazil may have competitive advantages and enhance its external balance accounts, by the competitive substitution of imports by producing internally goods and services which technology is known by Brazilian firms and because of the increase in exports. (author)

  3. Brazilian energy balance 2008 - year 2007

    International Nuclear Information System (INIS)

    2008-01-01

    The Brazilian energy balance - BEB - is divided into eight chapters and eleven annexes, whose contents are as follow: chapter 1 - energy analysis and aggregated data; chapter 2 - energy supply and demand by source; chapter 3 - energy consumption by sector; chapter 4 - energy imports and exports; chapter 5 - balance of transformation centers; chapter 6 - energy resources and reserves; chapter 7 - energy and socioeconomics; chapter 8 - state energy data; annex I - installed capacity; annex II - self-generation of electricity; annex III - world energy data; annex IV - world energy evolution; annex V - useful energy balance; annex VI - general structure of the BEN; annex VII - treatment of information; annex VIII - units; annex IX - conversion factors; annex X - consolidated energy balances 1970/2007; annex XI - energy balance 2007. (author)

  4. PREFACE: XXXVII Brazilian Meeting on Nuclear Physics

    Science.gov (United States)

    2015-07-01

    The XXXVII Brazilian Meeting on Nuclear Physics (or XXXVII RTFNB 2014) gave continuity to a long sequence of workshops held in Brazil, devoted to the study of the different aspects of nuclear physics. The meeting took place in the Maresias Beach Hotel, in the town of Maresias (state of São Paulo) from 8th to 12th September 2014. Offering gentle weather, a charming piece of green land of splendid natural beauty with beach and all amenities, the place had all the conditions for very pleasant and fruitful discussions. The meeting involved 162 participants and attracted undergraduate and graduate students, Brazilian and South American physicists and invited speakers from overseas (USA, Italy, Spain, France, England, Switzerland, Germany and South Corea). In the program we had plenary morning sessions with review talks on recent developments in theory, computational techniques, experimentation and applications of the many aspects of nuclear physics. In the parallel sessions we had a total of 58 seminars. This volume contains 60 written contributions based on these talks and on the poster sessions. Evening talks and poster sessions gave still more insight and enlarged the scope of the scientific program. The contributed papers, representing mainly the scientific activity of young physicists, were exhibited as posters and are included in the present volume. Additional information about the meeting can be found at our website: http://www.sbfisica.org.br/~rtfnb/xxxvii-en Support and sponsorship came from brazilian national agencies: Conselho Nacional de Desenvolvimento Científico e Tecnoógico (CNPq); Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Fundação de Amparo á Pesquisa do Estado de São Paulo (FAPESP); Fundação de Amparo á Pesquisa do Estado do Rio de Janeiro (FAPERJ); Sociedade Brasileira de Física (SBF) and Instituto de Física da Universidade de São Paulo (IFUSP). We honored Professor Alejandro Szanto de Toledo, who completed

  5. A study about lithium - the Brazilian situation

    International Nuclear Information System (INIS)

    Ribeiro, G.F.

    1984-01-01

    A geoeconomical analysis of lithium is carried out, from its natural occurrence to its final application as a commercial product. General geological aspects such as the most important lithium mines, their minerals and their world distribution are taken into account. Also discussed is the viewpoint of enterprises regarding the various economical sectors associated with the production, consumption, marketing, installed industrial capacity, preparation of new products, development programs and installation of new plants. The applications of lithium, its several alloys and other chemical compounds are considered. Conclusions from these studies and from the data acquired are drawn, regarding the present Brazilian situation and its perspectives towards a future demand for lithium. (C.L.B.) [pt

  6. μ-SRXRF characterization of Brazilian emeralds

    International Nuclear Information System (INIS)

    Curado, J F; Radtke, M; Buzamcn, G; Reinnolz, U; Riesemeier, H; Guttler, R A S; Kizzutto, M A

    2014-01-01

    The aim of the present study is to characterize emeralds from different mines of Brazil by using Synchrotron Radiation X-ray Fluorescence Microanalysis (μ-SRXRF). The advantage of this technique is that we can analyze a homogeneous, inclusion free area of the stone with the microbeam to distinguish the elemental fingerprint according to the provenance of the emerald. A total of 47 samples belonging to 5 different Brazilian mines were studied in this work and 28 elements were identified. By means of Principal Component Analysis (PCA) it is possible to build different groups according to the provenance of the stones, which allows to assign samples of unknown origin to the according mine.

  7. Representation of differences in Brazilian journalistic discourse

    Directory of Open Access Journals (Sweden)

    Fernando Resende

    2015-08-01

    Full Text Available Considering the technological advance, which enhances the production of mediatic discourses, and the notion of a libidinal power installed in our globalized societies, reflecting upon representation of differences seems to be a major issue. This essay discusses the production of journalistic discourses from an epistemological perspective. The field of media is taken as constituted by a triple component – discourse/narrative/machines – and we suggest that this triad has proved to be incomplete: discourse and narrative, once they really are vertexes of the triangle, are absences. Two journalistic-documentary productions – which intend to represent life in the slums of Brazil – are compared in order to reflect upon representation of differences in Brazilian journalistic discourse. In view of the up-to-date polarization and pulverization of discourses, we suggest that in the perspective of the journalistic discourse, one can only speak about alterity if one tries to comprehend the ways news is staged.

  8. Natural radionuclide distribution in Brazilian commercial granites

    International Nuclear Information System (INIS)

    Anjos, R.M.; Veiga, R.; Soares, T.; Santos, A.M.A.; Aguiar, J.G.; Frasca, M.H.B.O.; Brage, J.A.P.; Uzeda, D.; Mangia, L.; Facure, A.; Mosquera, B.; Carvalho, C.; Gomes, P.R.S.

    2005-01-01

    The dimension stones sector in Brazil produces several varieties of granites, marbles, slates and basalts. More than half of this production corresponds to around 200 different commercial types of granites with specific names, geographical and geological origins and mineral compositions. The well-known natural radioactivity present in rocks, where high radiation levels are associated with igneous rocks such as granite, can be used to determine their general petrologic features. This subject is important in environmental radiological protection, since granites are widely used as building and ornamental stones. In this paper, it is applied to correlate the petrographic characteristics of commercial granites with their corresponding dose rates for natural radioactivity. Amounts of thorium, uranium and potassium concentrations have been reported in several Brazilian commercial granite samples

  9. Female Leadership Talent Development: The Brazilian Context

    Directory of Open Access Journals (Sweden)

    Renata Muniz Prado

    2018-05-01

    Full Text Available Women’s participation in leadership positions is increasing all over the world. Nevertheless, an analysis of the top positions of several careers shows that this progress has been insufficient to equitably drive the professional rise of women to the highest levels of responsibility, power and prestige. In Brazil the situation is not different. Various factors contribute to this phenomenon. Social and cultural influences play a particularly important role in the development of female leadership talent, impacting not just the behavioral patterns incorporated and displayed by women, but also the structure of their professional fields. Hence, this study aimed to analyze the development of talent in the light of gender studies, with an emphasis on factors that interfere in the rise of Brazilian women towards positions of power and leadership. This approach is hoped to elicit a reflection on how the unequal conditions experienced by women are perpetuated and often made to seem natural by valuing their “difference”

  10. Brazilian environmental sociology: a provisional review

    Directory of Open Access Journals (Sweden)

    Ferreira Leila da Costa

    2002-01-01

    Full Text Available The article aims firstly at the reconstitution and analysis of history within the scope of international environmental sociology situated in the context of contemporary sociology. It also discusses - from the standpoint of literature (Buttel, Dunlap, Hanning, among others - its theoretical-methodological and institutional aspects as well in order to understand the obstacles encountered to legitimate and consolidate a set of problems which, until recently, were not dealt with by social sciences. Secondly, it analyses the Brazilian case. Environmental sociology in Brazil is strongly influenced by American empirical sociology, the precursor of the institutionalization process for the themes. On the other hand, further analysis of this case is relevant to understand the relationship between the scientific sphere, and the creation of environmental policies and social movements.

  11. Phylogeny of culturable cyanobacteria from Brazilian mangroves.

    Science.gov (United States)

    Silva, Caroline Souza Pamplona; Genuário, Diego Bonaldo; Vaz, Marcelo Gomes Marçal Vieira; Fiore, Marli Fátima

    2014-03-01

    The cyanobacterial community from Brazilian mangrove ecosystems was examined using a culture-dependent method. Fifty cyanobacterial strains were isolated from soil, water and periphytic samples collected from Cardoso Island and Bertioga mangroves using specific cyanobacterial culture media. Unicellular, homocytous and heterocytous morphotypes were recovered, representing five orders, seven families and eight genera (Synechococcus, Cyanobium, Cyanobacterium, Chlorogloea, Leptolyngbya, Phormidium, Nostoc and Microchaete). All of these novel mangrove strains had their 16S rRNA gene sequenced and BLAST analysis revealed sequence identities ranging from 92.5 to 99.7% when they were compared with other strains available in GenBank. The results showed a high variability of the 16S rRNA gene sequences among the genotypes that was not associated with the morphologies observed. Phylogenetic analyses showed several branches formed exclusively by some of these novel 16S rRNA gene sequences. BLAST and phylogeny analyses allowed for the identification of Nodosilinea and Oxynema strains, genera already known to exhibit poor morphological diacritic traits. In addition, several Nostoc and Leptolyngbya morphotypes of the mangrove strains may represent new generic entities, as they were distantly affiliated with true genera clades. The presence of non-ribosomal peptide synthetase, polyketide synthase, microcystin and saxitoxin genes were detected in 20.5%, 100%, 37.5% and 33.3%, respectively, of the 44 tested isolates. A total of 134 organic extracts obtained from 44 strains were tested against microorganisms, and 26% of the extracts showed some antimicrobial activity. This is the first polyphasic study of cultured cyanobacteria from Brazilian mangrove ecosystems using morphological, genetic and biological approaches. Copyright © 2014 Elsevier GmbH. All rights reserved.

  12. Strategic knowledge management in brazilian organizations

    Directory of Open Access Journals (Sweden)

    Rivadávia Correa Drummond de Alvarenga

    2010-08-01

    Full Text Available Investigates the theme known as “Knowledge Management” (KM in three large Brazilian organizations trying to discuss its concepts, constituent elements, managerial approaches and tools, while aiming at leaving behind the purely terminological discussion, which is innocuous and naive. The basic presuppositions were two: (i most of what it´s referred to or named KM is actually “Information Management” (IM and IM is just one of the components of KM. KM is more than simply IM due to the fact that it includes and incorporates other concerns, such as the creation, use and sharing of information and knowledge in the organizational context; (ii a conceptual model or map can be formulated based on three basic conceptions: (a a strategic conception of information and knowledge, (b the introduction of such strategy in the tactical and operational levels through the several managerial approaches and informaion technology tools and (c the creation of an organizational space for knowledge. The main objective is to investigate and analyze the conceptions, motivations, practices and results of KM effectively implemented in three large Brazilian organizations. The qualitative research strategy used was the study of multiple cases with incorporated units of analysis and three criteria ere observed for the judgment of the quality of the research project: validity of the construct, external validity and reliability. Multiple sources of evidence were used and data analysis consisted of three flows of activities: data reduction, data displays and conclusion drawing/verification. The results confirmed the presuppositions and the fact that KM means a rethinking of management practices in the information ea. It was also identified that the main challenges facing organizations committed to KM have its focus on change management, cultural and behavioral issues and the creation of an enabling context that favors the creation, use and sharing of information and

  13. Safety reviews of the Brazilian multipurpose reactor

    International Nuclear Information System (INIS)

    Soares, Humberto Vitor

    2014-01-01

    This work presents a model developed for thermal hydraulic (TH) simulation of the Multipurpose Brazilian Reactor (RMB), whose Brazilian proposal for design, construction and operation was established in 2007. This reactor has as main proposed the production of radioisotopes for use in exams of nuclear medicine, material tests and utilization of neutrons beams. Besides of the TH modeling and safety analysis of the reactor, the application of a methodology to perform coupled calculation thermal-hydraulic/neutron kinetic (TH/NK) is also presented. Initially, the RMB was modeled in the safety analysis RELAP5 code. This code performs the thermal hydraulic calculation using point kinetics. Subsequently, the model was adapted and verified to the RELAP5-3D© code. This code performs the process of internal coupling through the option of nodal neutron kinetics calculation using the NESTLE code which solves the neutron diffusion equation. To generate the neutronic group constants, which are macroscopic cross sections that serve as input data for the neutronic codes, it was used the WIMSD-5B cell calculation code. The neutron analysis code PARCS was also used to model the 3D RMB core in order to compare the results of radial and axial average power distribution with the results generated by RELAP5-3D© code and with the available results of the CITATION neutron kinetic code. The safety analyses demonstrated safe behavior of the reactor through situations of possible transients. The 3D coupled calculations to the steady state operation also showed expected behavior, as well as the RMB neutronic analyzes performed with the codes NESTLE and PARCS.(author)

  14. Systematic review on obesity in Brazilian adolescents

    Directory of Open Access Journals (Sweden)

    Rafael Miranda Tassitano

    2009-09-01

    Full Text Available The purpose of this study was to systematically review the Brazilian literature on the prevalence of obesity and associated factors in adolescents. The literature search was carried out in the electronic databases Pubmed and Bireme, using the keywords: obesity, overweight, BMI, adolescents and Brazil. The following inclusion criteria were considered: Brazilian adolescents, BMI-based obesity estimates, publication until 2007, and adequate methodology. After the examination of titles, abstracts and full texts, 27 papers fulfilled our inclusion criteria. For describing the studies, the following variables were used: type of survey, design, age range, sample size, place of data collection. For evaluating the evidence, the following indicators were used: methods used, independent variables studied, statistical analyses employed, and cut-off used for defining obesity. Most studies used cross-sectional designs (77.7% and were carried out through home interviews (51.7%. Only one study used a nationally-based sample and three used regional-based samples (Northeast and Southeast. Regardless the design, place, type of survey, age range and cut-off used, the prevalence of obesity tended to be higher in the following groups: adolescents living in the Southeast region, living in urban areas, from high socioeconomic level and from private schools. In terms of behavioral determinants of obesity, the paucity of prospective studies and the difficulties of adequately measuring physical activity and food consumption, make the results less clear. Although the number of studies has increased, it is still necessary to stimulate surveys in the North, Southeast and Mideast regions. Prospective studies are also necessary, in order to evaluate the association between obesity and behavioral exposures.

  15. Systematic review on obesity in Brazilian adolescents

    Directory of Open Access Journals (Sweden)

    Rafael Miranda Tassitano

    2009-01-01

    Full Text Available http://dx.doi.org/10.5007/1980-0037.2009v11n4p449 The purpose of this study was to systematically review the Brazilian literature on the prevalence of obesity and associated factors in adolescents. The literature search was carried out in the electronic databases Pubmed and Bireme, using the keywords: obesity, overweight, BMI, adolescents and Brazil. The following inclusion criteria were considered: Brazilian adolescents, BMI-based obesity estimates, publication until 2007, and adequate methodology. After the examination of titles, abstracts and full texts, 27 papers fulfilled our inclusion criteria. For describing the studies, the following variables were used: type of survey, design, age range, sample size, place of data collection. For evaluating the evidence, the following indicators were used: methods used, independent variables studied, statistical analyses employed, and cut-off used for defining obesity. Most studies used cross-sectional designs (77.7% and were carried out through home interviews (51.7%. Only one study used a nationally-based sample and three used regional-based samples (Northeast and Southeast. Regardless the design, place, type of survey, age range and cut-off used, the prevalence of obesity tended to be higher in the following groups: adolescents living in the Southeast region, living in urban areas, from high socioeconomic level and from private schools. In terms of behavioral determinants of obesity, the paucity of prospective studies and the difficulties of adequately measuring physical activity and food consumption, make the results less clear. Although the number of studies has increased, it is still necessary to stimulate surveys in the North, Southeast and Mideast regions. Prospective studies are also necessary, in order to evaluate the association between obesity and behavioral exposures.

  16. Deposition of inhaled uranium in Brazilian reference man

    International Nuclear Information System (INIS)

    Cardoso, Joaquim Carlos S.; Moraes, Jose Carlos T.B.

    1996-01-01

    Brazilian's morphometric and physiological parameters were selected for use in assessment of deposition of inhaled uranium. The assessment results were compared with estimates of deposition made with parameters recommended in ICRP 66. (author)

  17. Competitive integration. A new strategy for the brazilian industrialization

    International Nuclear Information System (INIS)

    Lucas, L.P.V.

    1989-01-01

    It is discussed a new strategy for brazilian industrialization: from importation substitution to structural changes. The strategy of competitive integration, technological progress and the new technologies. (A.C.A.S.)

  18. Proceedings of the 5. Brazilian Congress on Energy

    International Nuclear Information System (INIS)

    1990-01-01

    The Proceedings of the 5. Brazilian Congress on Energy includes the Technical Sessions on the following areas: energy sources, legal and institutional aspects of the exploration of energy sources, energy conservation and use, and energy planning. (M.V.M.)

  19. Industrial development - consequences about the implantation of Brazilian Nuclear Program

    International Nuclear Information System (INIS)

    Syllus, C.

    1987-07-01

    The strategy to promote the growing industry participation in the Brazilian Nuclear Program, the difficulties, the measurements adopted for overcoming and the results obtained in terms of industrial development, are presented. (M.C.K.) [pt

  20. Structural Properties of the Brazilian Air Transportation Network

    Directory of Open Access Journals (Sweden)

    GUILHERME S. COUTO

    2015-09-01

    Full Text Available The air transportation network in a country has a great impact on the local, national and global economy. In this paper, we analyze the air transportation network in Brazil with complex network features to better understand its characteristics. In our analysis, we built networks composed either by national or by international flights. We also consider the network when both types of flights are put together. Interesting conclusions emerge from our analysis. For instance, Viracopos Airport (Campinas City is the most central and connected airport on the national flights network. Any operational problem in this airport separates the Brazilian national network into six distinct subnetworks. Moreover, the Brazilian air transportation network exhibits small world characteristics and national connections network follows a power law distribution. Therefore, our analysis sheds light on the current Brazilian air transportation infrastructure, bringing a novel understanding that may help face the recent fast growth in the usage of the Brazilian transport network.

  1. Proceedings of the 5. Brazilian Meeting on Analytical Chemistry

    International Nuclear Information System (INIS)

    1989-01-01

    The works of 5 0 Brazilian Meeting on Analitycal Chemistry are presented, including topics about elements determination with instrumental technique. The use of these techniques in soil and food are also cited. (C.G.C.) [pt

  2. Annual report 2006 - IBP - Brazilian Institute of Petroleum and Gas

    International Nuclear Information System (INIS)

    2006-01-01

    This document the activities of Brazilian Petroleum and Gas Institute during 2004 as follows: economic and energy policy; supply, natural gas, support and services, certification, courses, events and normalization managing

  3. Proceedings of the 1. Brazilian Congress on Plasma Physics

    International Nuclear Information System (INIS)

    1991-01-01

    The 1. Brazilian Congress on Plasma Physics proceedings presents technical papers on magnetohydrodynamics, plasma diagnostic, plasma waves, plasma impurities, plasma instabilities, and astrophysics plasma. (L.C.J.A.)

  4. Structural Properties of the Brazilian Air Transportation Network.

    Science.gov (United States)

    Couto, Guilherme S; da Silva, Ana Paula Couto; Ruiz, Linnyer B; Benevenuto, Fabrício

    2015-09-01

    The air transportation network in a country has a great impact on the local, national and global economy. In this paper, we analyze the air transportation network in Brazil with complex network features to better understand its characteristics. In our analysis, we built networks composed either by national or by international flights. We also consider the network when both types of flights are put together. Interesting conclusions emerge from our analysis. For instance, Viracopos Airport (Campinas City) is the most central and connected airport on the national flights network. Any operational problem in this airport separates the Brazilian national network into six distinct subnetworks. Moreover, the Brazilian air transportation network exhibits small world characteristics and national connections network follows a power law distribution. Therefore, our analysis sheds light on the current Brazilian air transportation infrastructure, bringing a novel understanding that may help face the recent fast growth in the usage of the Brazilian transport network.

  5. Tudo Pela Patria: The Brazilian Navy's Drive to Blue Water

    National Research Council Canada - National Science Library

    Conners, Michael E

    2005-01-01

    The Brazilian Navy is unique among most world navies today. Since the end of the Cold War, most nations have reduced their naval power, yet Brazil has maintained a determination to possess a blue-water fleet...

  6. Argentine-Brazilian declaration on common nuclear policy

    International Nuclear Information System (INIS)

    1990-12-01

    The document reproduces the texts of the speeches made by the Presidents of Argentina and Brazil at Foz do Iguacu, Brazil, on 28 November 1990, at the signing of the Argentine-Brazilian Declaration on Common Nuclear Policy

  7. Neogene climate evolution in Amazonia and the Brazilian Northeast

    NARCIS (Netherlands)

    Hoorn, C.; Bernardes-de-Oliveira, M.E.C.; Dino, R.; Garcia, M.J.; Antonioli, L.; da Costa Casado, F.; Hooghiemstra, H.; de Souza Carvalho, I.; Garcia, M.J.; Strohschoen, O.; Cunha Lana, C.

    2014-01-01

    Climate change follows from the interaction between global atmospheric and oceanic processes with regional processes. In this chapter we review which factors determined climate evolution in Amazonia and the Brazilian Northeast and present a recompilation of Neogene palynological and paleobotanical

  8. Two-year participatory monitoring of extractivism in Brazilian Amazonia

    DEFF Research Database (Denmark)

    Cámara-Leret, Rodrigo; Newton, Peter; Hawes, Joseph

    basin of western Brazilian Amazonia. We discuss the most important extractive activities for ~100 households, how socio-economic factors influence NTFP extractive patterns across households, and the benefits and constraints of using participatory approaches to monitor extractivism in Amazonia....

  9. Abstracts of the 26. Brazilian Congress on Chemistry

    International Nuclear Information System (INIS)

    1985-01-01

    It is presented the short communications of papers presented at the 26. Brazilian Congress on Chemistry, of nuclear interest. The papers are classified in four areas: isotope chemistry, organic chemistry, inorganic chemistry and physico-chemical. (E.G.) [pt

  10. Locative inversion and agreement syntax in Brazilian Portuguese

    Directory of Open Access Journals (Sweden)

    Juanito Ornelas de Avelar

    2009-12-01

    Full Text Available Adopting the Minimalist Program framework (CHOMSKY 2000, 2001, this paper suggests that, in Brazilian Portuguese, sentences with a locative prepositional phrase in preverbal position can be characterized as instances of locative inversion in which prepositional constituents occupy the grammatical subject position. It will be proposed that particularities involving the patterns of locative inversion in Brazilian Portuguese derive from properties of the subject-verb agreement in this language.

  11. Incoherences of Brazilian labour laws face to present radioprotection concepts

    International Nuclear Information System (INIS)

    Borges, J.C.

    1996-01-01

    The Brazilian labour legislation establishes, since 1950, some privileges for people working in activities which imply exposure to ionizing radiations. Comparing the present legal framework with technical radioprotection knowledge, one can detect several incoherences covering: classification of such activities; additional payments; reduced labour journey; more vacations; medical surveillance; early retirements; special norms for women. An analysis of these incoherences lead us to propose a new frame of labour rights and radioprotection norms, coupling Brazilian juridical principles and modern radioprotection knowledge. (author)

  12. Modelling sustainable international tourism demand to the Brazilian Amazon

    OpenAIRE

    Divino, Jose Angelo; McAleer, Michael

    2008-01-01

    The Amazon rainforest is one of the world's greatest natural wonders and holds great importance and significance for the world's environmental balance. Around 60% of the Amazon rainforest is located in the Brazilian territory. The two biggest states of the Amazon region are Amazonas (the upper Amazon) and Para (the lower Amazon), which together account for around 73% of the Brazilian Legal Amazon, and are the only states that are serviced by international airports in Brazil's North region. Th...

  13. NOTES ON A BRAZILIAN LITERATURE COURSE FOR FOREIGNERS IN BRAZIL

    Directory of Open Access Journals (Sweden)

    Ana Amalia Alves da Silva

    2016-07-01

    Full Text Available In this article are some reflections on the creation of the course on Brazilian Literature for Foreigners and the conduction of the classes as a freelance teacher in a languages school in São Paulo from May to June 2015. This is a case study and an attempt to contribute to the newly established field of research on teaching Brazilian Literature for speakers of other languages in Brazil.

  14. An overview on the Brazilian orange juice production chain

    OpenAIRE

    Renato Marcio dos Santos; Irenilza de Alencar Nääs; Mario Mollo Neto; Oduvaldo Vendrametto

    2013-01-01

    Brazil is the world's largest producer of oranges and uses more than 70% of the harvested fruits in the production of juices. The amount of processed orange is growing about 10% per year, confirming the trend of the Brazilian citrus for juice production. This research aimed to investigate the Brazilian orange juice production chain from 2005 to 2009. Data from the amount of frozen juice produced and exported, international price of orange juice, and intermediate transactions were assessed in ...

  15. The Brazilian Business World: the difficult adaptation to globalization

    OpenAIRE

    Arraes,Virgílio Caixeta

    2010-01-01

    The article deals with the internationalization of Brazilian businesses in the current decade. In the 1990s, Brazil embraced economic neoliberalism and promoted a huge opening up of its economy. At that time, Brazilian companies had to adapt rapidly. Twenty years later, the country has reinforced its presence in Latin America and has ensured a better position in the global markets, especially by through agricultural exports.

  16. The Brazilian Business World: the difficult adaptation to globalization

    OpenAIRE

    Arraes, Virgílio Caixeta

    2010-01-01

    The article deals with the internationalization of Brazilian businesses in the current decade. In the 1990s, Brazil embraced economic neoliberalism and promoted a huge opening up of its economy. At that time, Brazilian companies had to adapt rapidly. Twenty years later, the country has reinforced its presence in Latin America and has ensured a better position in the global markets, especially by through agricultural exports. O artigo trata da internacionalização das empresas brasileiras na...

  17. [Brazilian guidelines for the manegement of intracerebral hemorrhage].

    Science.gov (United States)

    Pontes-Neto, Octávio M; Oliveira-Filho, Jamary; Valiente, Raul; Friedrich, Maurício; Pedreira, Bruno; Rodrigues, Bruno Castelo Branco; Liberato, Bernardo; Freitas, Gabriel Rodriguez de

    2009-09-01

    Among the stroke subtypes, intracerebral hemorrhage (ICH) has the worst prognosis and still lacks a specific treatment. The present manuscript contains the Brazilian guidelines for the management of ICH. It was elaborated by the executive committee of the Brazilian Cerebrovascular Diseases Society and was based on a broad review of articles about the theme. The text aims to provide a rational for the management of patients with an acute ICH, with the diagnostic and therapeutic resources that are available in Brazil.

  18. PRODEEM - the Brazilian programme for rural electrification using photovoltaics

    Energy Technology Data Exchange (ETDEWEB)

    Galdino, Marco A.; Lima, Jorge H.G. [Centro de Pesquisas de Energia Eletrica (CEPEL), Rio de Janeiro, RJ (Brazil)], Emails: marcoag@cepel.br, jlima@cepel.br

    2002-07-01

    This work describes several technical and managerial aspects of the Brazilian PRODEEM Program, which comprises installation of thousands of PV systems for several applications in Brazilian outback. The equipment were acquired through international bidding and CEPEL was specially concerned about the its quality and lifespan, as well as about the correct sizing of the systems. The purpose of this work is to present a history and the technical experience obtained by CEPEL after several years of involvement in PRODEEM activities. (author)

  19. The nuclear contribution to the solution of Brazilian energy problem

    International Nuclear Information System (INIS)

    1995-01-01

    This report presents the justifying of Brazilian Nuclear Programme. Due to the demand increasing of electric energy in Brazil, the government decided to an alternative source. Although the brazilian electric power program continue basically hydroelectric, the nuclear power plants began to be constructed. The strategy adopted, the prospection of uranium enrichment, the project and construction of nuclear power plants, the responsibilities of Nuclebras and Nuclen and several stages of this program are described. (C.M.)

  20. Systematic risk variations (beta) convertible debenture brazilian companies

    OpenAIRE

    Renata Drumond Pinto Coelho Antonino; Wagner Moura Lamounier; Roberto Kaehler de Albuquerque Maranhão

    2010-01-01

    purpose of this article is to analyze the impact of issuing convertible debentures on the systematic risk of Brazilian companies. Some applied researches in the U.S. capital market (STEIN, 1992; LEWIS et al, 2002; RAI, 2005) indicate that convertible debentures may be used as an alternative financing source when adverse selection problem makes stock issuing unattractive financing source. The analysis of Brazilian companies that issued convertible debentures recorded in the period from 1998 to...