DENISE SAHYUN LEVY

Projetos de Pesquisa
Unidades Organizacionais
Cargo

Resultados de Busca

Agora exibindo 1 - 3 de 3
  • Artigo IPEN-doc 24686
    Web-based system for radiological protection programs
    2015 - LEVY, D.S.; SORDI, G.M.A.A.
    In order to establish a Radiation Protection Plan or a Radiation Emergency Plan, Brazilian facilities should take into account all procedures based on national and international guidelines and recommendations. This information can be found in several documents published by different organizations over the past decades: the International Commission on Radiological Protection (ICRP), International Atomic Energy Agency (IAEA) and Comissão Nacional de Energia Nuclear (CNEN). Therefore, this project aims the informatization of the radiological protection programs in a single system in order to offer unified programs and inter-related information in Portuguese, providing Brazilian facilities a complete repository for research, consultation and information, combining computer technology and radiological protection in order to enhance the best benefits from information technology. This research work includes programs about: (1) Monitoring of Workplace (Monitoring for External Radiation, Monitoring for Surface Contamination, Monitoring for Air Contamination) and (2) Individual Monitoring (Monitoring of External Exposure and Monitoring of Internal Exposure, Monitoring for Skin and Clothing). WEB platform tools and functionalities were developed according to target public needs, regarding new possibilities of media, mobile access, and information sharing. The servers processing power added to the technology of relational databases allow to integrate information from different sources, enabling complex queries with reduced response time. Moreover, taking into account this is a pioneer project with the prospect of long-term use, the challenge involves the combination of multiple computer technologies that allows a robust, effective and flexible system, which can be easily adapted to future technological innovations.
  • Artigo IPEN-doc 24749
    Construindo pontes entre ciência e sociedade
    2018 - LEVY, D.S.; SORDI, G.M.A.A.; VILLAVICENCIO, A.L.C.H.
    A irradiação de alimentos é uma técnica de preservação segura e eficaz para eliminar insetos e reduzir microrganismos prejudiciais à saúde humana. O processo contribui para inibir o brotamento e retardar o amadurecimento dos alimentos, prolongando a vida útil de frutas e legumes frescos. Entretanto, dentre uma grande parcela da população brasileira, ainda há grande desinformação sobre as aplicações pacíficas das ciências nucleares. Não raramente a mídia e as redes sociais tendem a associar a radiação ionizante a armas nucleares e acidentes de grandes proporções. A desinformação compromete a percepção do público: consumidores acabam por associar alimentos irradiados a alimentos radioativos ou contaminados. O público demonstra grandes preocupações quanto aos efeitos negativos das radiações para a saúde e riscos de contaminação ambiental. Os julgamentos e tomadas de decisões por parte da sociedade estão diretamente ligados à sua percepção dos riscos e benefícios advindos da Tecnologa Nuclear. Este artigo apresenta algumas considerações sobre as percepções do público a respeito dos alimentos irradiados, bem como algumas ações de divulgação científica, para aproximar ciência e sociedade. Cabe à comunidade científica construir novas pontes entre as ciências nucleares e o público leigo, oferecendo uma perspectiva mais ampla sobre as aplicações pacíficas das radiações ionizantes e suas contribuições na vida cotidiana.
  • Artigo IPEN-doc 24718
    Qualitative and quantitative approaches of occupational risks agents in a Brazilian facility
    2018 - CARNEIRO, J.C.G.G.; ALVES, A.S.; RODRIGUES, D.L.; LEVY, D.S.; SORDI, G.M.A.A.
    The occupational risk assessment is a structured and systematic process, which depends on the correct identification of probable risk factors and agents potentially founded at workplace. The objective of this paper was to carry out the basic characterization of a Brazilian radioisotope production facility through ample knowledge of the workplace, workforce, task performed and identification and evaluation of occupational risk agents in the workplace. The data analysis comprised a qualitative or quantitative approaches based on subjective information obtained by questionnaire, interview and observations about workplace, workforce and risk agents. The workforce was distributed into eight work processes. Regarding task-related exposure there was assumed that all workers presented the same exposure profile. Therefore, it was made an evaluation of the association degree between the occupational risks agents, which there were identified 17 risk agents at the workplace, including physical, chemical, biological, ergonomic and accident risks. Although the workers may be potentially exposed to different risk agents, the ionizing radiation was the main physical risk factor observed in this facility.