Past Issue

Magnetic and microstructural properties measurement and analysis of the smcs materials coated by double insulating layer

This work presents the study of the preparation routes of a soft magnetic composite (SMC) with an insulating iron-phosphate-resin coating. The energy losses of these composite materials in relation to the mobility of the domain walls during the magnetization process were studied. The SMC concept is based on the coating of magnetic particles with a surface layer, in the order of nanometers, electrically insulating and joined in the form of a three-dimensional matrix of a finished compact.

Synthesis and antimicrobial activity of some new 3-amino-6-(2'-aminophenyl)-1,2,4-triazin-5(4h) one

3-(Acyl/aroyl/ alkyl) amino-6- (2'-Acyl/aroyl/ alkyl) amino phenyl) - 1,2,4-triazin-5(4H) ones (3-10) have been synthesized derived from 3-amino-6-(2'-amino phenyl)- 1,2,4-triazin-5(4H) one (2). Structure of the new products have been established upon their elemental and spectral date. The newly prepared compounds showed good anti-microbial activity for more pathogenic microorganisms, prevalence of Staph. aureus growth and non-growth, that the growth had decreased almost at 9h and had increased number of non-growth bacteria by compound number 10. E. coli were inclined but less than Staph.

Planning and evaluation of catalytic cracking products of non-palatable vegetable oils using acidic catalysts

Jatropha and Castor oils were acquired and changed into their relating biodiesels by reactant breaking utilizing heterogeneous catalysts (Alumina and Montmorillonite-Hcl) with various proportions (0.2%, 0.4%, 0.6%, 0.8% and 1%). The particulars of the acquired items were similar to American Society for Testing and Materials (ASTM) details. The details of the got biodiesel were equivalent to fuel properties of petrol diesel. The appropriate mix between the got biodiesel and fuel was portrayed.

Uma releitura da demonstração do quadrado da hypothenusa dada pelo dr. augusto telles

O presente estudo traz em seu bojo uma releitura da demonstração do Teorema: ”A área do quadrado cujo lado é a hipotenusa de um triângulo é igual a soma das áreas dos quadrados que tem como lados cada um dos catetos”, conhecido também como teorema de Pitágoras, cuja identidade é c^2=a^2+b^2 , onde a, b e c são números positivos. Dado pelo brasileiro Augusto Telles e publicado na Revista de Engenharia em 10 de setembro de 1879. Como referencial teórico, apresenta-se alguns conceitos de ângulos, triângulos e retas.

Technological, competitive and organizational competencies in pharmaceutical biotechnology: the case of pharmaceutical company Libbs for biosimilars

Biosimilars drugs aim to change access to high-cost therapies, ensuing original biological drugs after their patent expiration. Every innovation movement requires from societies, economies, and enterprises to reshuffle to a new competition level. In the enterprise’s perspective, the capabilities to manage complementary competencies (technical, organizational and competitive) and resources defines how they will succeed in the market.

Geoestatística aplicada à fitossanidade: estado da arte e perspectivas futuras para o estado do Pará, Brasil

O objetivo deste trabalho foi a realizar um levantamento bibliográfico do que já foi produzido de pesquisa sobre o uso da Geoestatística para a análise espacial de ataques fitossanitários no estado do Pará, Brasil e, desta forma, demonstrar como o estado vem lidando com a utilização desta ferramenta inovadora para solução de problemas fitossanitários identificados no cotidiano das culturas desenvolvidas no estado, como forma de otimizar o processo produtivo, diminuir despesas e aumentar a produtividade das culturas.

Avaliação das medidas compensatórias da hidrelétrica de belo monte relacionadas à saúde do município de altamira-pa

As condicionantes ambientais estabelecidas para o licenciamento do empreendimento da Usina Hidrelétrica de Belo Monte-Pa, nas suas distintas fases, definem a obrigatoriedade da empresa Norte Energia S/A de apresentar, dentro de seu Estudo de Impacto Ambiental (EIA), o diagnóstico do setor saúde, como também o planejamento e as ações necessárias para a mitigação dos impactos no setor saúde descritos no Plano de Saúde Pública (PSP).

An integrative review of genetic testing for the diagnosis of autism spectrum disorder

The purpose of the study is to verify in the literature in a systematized way studies that prove the efficacy of genetic tests in the diagnosis of Autism Spectrum Disorder. Data were collected from the Research Databases of the Virtual Health Library and PubMed, using the combination of the following keywords: Genetic tests AND autistic spectrum disorder diagnosis. Articles from 1980 to 2020 were researched in the Portuguese, English and Spanish languages of national and international journals and included 17 full-text articles, in English, from PubMed to make up this study.

Alcachofra (Cynarascolumus L.) melhora o metabolismo oxidativo em ratos diabéticos

O diabetes mellitus é considerada uma doença crônica e está entre as emergenciais. A alcachofra vem sendo relatada com potencial atividades antibacteriana, anti-inflamatória, antioxidante e hipolipidêmica. O presente trabalho avaliou os efeitos do extrato da alcachofra na prevenção das complicações crônicas do diabetes mellitus. A droga vegetal foi adquirida comercialmente. O extrato seco foi obtido por maceração hidroetanólica (70% v/v). Utilizou ratos da linhagem Wistar machos, estes foram submetidos ao Aloxano (150mg/kg, em salina 0,9%) intraperitoneal.

Urban mobility in smart cities: a case study in the city of curitiba

This study addresses the urban mobility in the city of Curitiba, whoseissue is of vital importance for large cities, directly impacting the quality of life of citizens. Curitiba has been recognized worldwide for the quality of its public transportation, especially with the introduction of the Bus Rapid Transit and its exclusive lanes, but in recent years the city has suffered a negative impact due to the growth of the automobile fleet and the lack of investment in public transportation in new modes to meet the needs of users.