Physical Sciences and Engineering

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.

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.

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.

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.

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.

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).

This article aims to analyze the impact on learning to apply active methodologies, using the gamification strategy, in teaching the discipline of scientific methodology. The Kahoot platform was used in four classes of the 9th period of the Bachelor of Law course at a private higher education institution in the city of Belém in the State of Pará. The methodology for preparing this research is characterized as an exploratory applied research with the procedure the case study. Data collection took place in May, in the first semester of 2021.

The moisture problems in buildings that present underground and semi-underground elements with high water table levels affect technical and economic decisions. This article shows several analysis of the mechanisms involved in moisture and heat transport, taking into account two different seasons, a rainy and a dry one, for the years of 2001 and 2002, in Brasília, Brazil, employing the WUFI 2D-3 program. Applying known data and program inputs, it was possible to present hygrothermal characteristics of the materials and variation of groundwater.

The current rates of population growth impose on society the increasingly rationaliseduse of spaces. In this sense, the use of zoning can help the understanding of socio-economic and environmental dynamics that would orient the use and occupation of spaces, identifying relationships and impacts on capacity and agricultural aptitude, as well as subsidisingthe implementation of spatial planning policies.

The aim of this study is to contribute to the preparation and characterization of nanoemulsions for anti-aging cosmetic use. Palmarosa oil and Rosehip nanoemulsions were prepared with different active cosmetic ingredients such as mandelic acid and hyaluronic acid, in concentrations of 1%, 3% and 5% (wt%) of pseudoboehmite. After the nanoemulsions analysis, they were characterized in the following parameters: visual analysis, pH, density and optical microscopy.