Editorial

IJAMB had its beginning counting on a highly qualified team in different areas of knowledge which will be of great value in terms of improving impact and novelty related to the publications.This journal aims to be a vehicle for disseminating research, advances and developments in the field of medical biotechnology, with emphasis in medicinal chemistry, bioelectronics, biophotonics, biopolymers, 3D printing for biomedical applications, tissue engineering and regenerative medicine areas. In addition, the submission of new methodologies that support studies within the above mentioned areas are also welcome. Our Publishing Process is based on the most relevant journals related to the topics covered by IJAMB, which periodicity at this first moment will be biennial. We are pleasure to invite colleagues according to the mentioned areas of interest to submit their articles for analysis in our editorial peer-reviewed system which will certainly allow an evaluation with ethics and criteria. It is known that there is a large number of "predatory" magazines that reduce quality in cientific publishing and some charge for their publications. This magazine will be the "online" and "open access" type, making the articles visible and available for download at any time in any part of the world. IJAMB is already in English language format, so that in a short time the magazine will be internationally recognized, allowing a new range of collaborators and referees, as well as new members to the editorial staff. Therefore, we are very hopefull that all members envolved and future ones will really strive to contribute to the evolution of this publication which quality and impact of the shared information will certainly increase.Welcome to the International Journal of Advances in Medical Biotechnology

Aesthetics and usability of virtual learning environment interfaces

EThOS - Electronic Theses Online ServiceGBUnited Kingdo

Projeto e desenvolvimento de um inversor multifásico para aplicações automotivas

Este trabalho descreve o desenvolvimento de um inversor multifásico que pode operar como uma plataforma para acionamento e teste de máquinas elétricas de até 15 fases, além de operar com frequência fundamental de até 1 kHz e frequência de chaveamento de 100 kHz. Portanto, uma topologia de inversor tipo fonte de tensão (VSI) multifá- sico utilizando SiC MOSFETs e componentes aprovados para aplicações automotivas foi projetado e construído. A plataforma desenvolvida é composta por módulos de potência independentes e um módulo de controle com tecnologia que utiliza apenas um único microcontrolador capaz de gerar todos os sinais com modulação por largura de pulsos (PWM). Para validar o projeto, testes experimentais foram realizados com uma máquina de fluxo axial do tipo YASA (Yokeless and Segmented Armature) que pode operar com 3, 5 ou 15 fases e também com conexões multiestrela, um com três sistemas independentes de cinco fases e outro com cinco sistemas trifásicos independentes. A plataforma utiliza modulação Min-Max Injection. Os resultados experimentais mostram que o inversor é capaz de acionar e testar motores multifásicos com um ampla variedade de conexões elétricas utilizando elevadas frequências fundamentais e de portadora. Portanto, a plataforma desenvolvida é uma importante ferramenta que permite o ensaio de máquinas elé- tricas multifase e multiestrela operando sob as mais diversas configurações e condições de operação.This work describes the development of a multiphase inverter that can operate as a platform for driving and testing electrical machines with up to 15 phases, in addition to operating with a fundamental frequency of up to 1 kHz and a switching frequency of 100 kHz. Therefore, a multiphase voltage source inverter (VSI) topology using SiC MOSFETs and approved components for automotive applications was designed and constructed. The developed platform is composed of independent power modules and a control module with technology that uses only a single microcontroller capable of generating all signals with pulse width modulation (PWM). To validate the project, experimental tests were carried out with a YASA (Yokeless and Segmented Armature) machine that can operate with 3, 5 or 15 phases and also with multi-star connections, one with three independent systems of five phases and another with five independent three-phase systems. The platform uses Min-Max Injection modulation. Experimental results show that the inverter is capable of driving and testing multiphase motors with a wide variety of electrical connections using high fundamental and carrier frequencies. Therefore, the developed platform is an important tool that allows the testing of multiphase and multistar electrical machines operating under the most diverse configurations and operating conditions

Comparação do consumo de alimentos marcadores de proteção e de risco para doenças crônicas durante a gravidez e o período pós-parto em mulheres que tiveram diabetes mellitus gestacional

A maior proporção de mulheres obesas em idade fértil acarreta maior risco de gestações complicadas pelo diabetes mellitus gestacional (DMG). Mudança de estilo de vida é essencial para prevenir o diabetes mellitus tipo 2 (DM2). É importante que essas mulheres estejam atentas para maior consumo de alimentos protetores, bem como diminuição de alimentos marcadores de risco para doenças crônicas. Ainda são escassas as evidências que caracterizem o consumo alimentar nessa população de alto risco. Este estudo tem como objetivo comparar o consumo de alimentos marcadores de proteção e de risco para doenças crônicas durante a gravidez e o período pós-parto em mulheres que tiveram DMG. Trata-se de um estudo de coorte. A população consistiu de 799 mulheres de Porto Alegre (RS), Pelotas (RS) e Fortaleza (CE), pertencentes ao estudo Lifestyle Intervention for Diabetes Prevention After Pregnancy (LINDA-Brasil). Foram incluídas no estudo gestantes maiores de 18 anos, sem diabetes prévio à gravidez e com idade gestacional ≥28 semanas. Foram coletadas variáveis demográficas, clínicas, nutricionais e aplicado um questionário de frequência de consumo adaptado do VIGITEL e do SISVAN. Observou-se nítida redução dos hábitos saudáveis entre a gravidez e o período pós-parto. O consumo de salada crua 5 a 7x/semana reduziu em 27% (de 57,6% na gravidez para 42,2% após o parto), o consumo de verduras e legumes cozidos 5 a 7x/semana reduziu de 24% para 14,9%, o consumo de frutas ou salada de frutas 5 a 7x/semana de 69% para 39,8%, o consumo de leite ou iogurte integral 5 a 7x semana de 38,9% para apenas 3,1% e o consumo de leite semi- ou desnatado de 32,8% para 2,2%. Para alimentos marcadores de risco, observou-se que o refrigerante possuía menor consumo durante a gestação e aumentou sua frequência no pós-parto. A idade, escolaridade e renda foram as principais variáveis associadas ao consumo de frutas e refrigerantes na gestação e no pós-parto. As gestantes com DMG demonstraram uma piora na alimentação no pós-parto em relação ao período da gestação. Neste período possivelmente estas mulheres não estarão mais em acompanhamento nutricional, evidenciando que é necessário atenção para essas mulheres após o nascimento do bebê.The higher proportion of obese women of childbearing age increases the risk of pregnancies complicated by gestational diabetes mellitus (GDM). Lifestyle change is an essential factor for the onset of type 2 diabetes mellitus (DM2). It is important for these women to be aware of the consumption of high-risk foods and the importance of food for the risk of chronic diseases. There is scarce literature that characterizes food consumption in this high-risk population. The objective of this study was to compare high and low risk food consumption for chronic diseases during pregnancy and the postpartum period in women who had GDM. It was a cohort study. The population was composed by 799 women from Porto Alegre (RS), Pelotas (RS) and Fortaleza (CE), belonging to the study Lifestyle Intervention for Prevention of Diabetes After Pregnancy (LINDA-Brazil). Participants who had more than 18 years, without pre-pregnancy diabetes and gestational age ≥28 weeks were included in the study. Demographic, clinical and nutritional variables were collected on a food frequency questionnaire adapted from VIGITEL and SISVAN. We found a reduction in healthy food practices between pregnancy and the postpartum period. Consumption of raw salad 5 to 7x/week decreased by 27% (from 57.6% in pregnancy to 42.2% after calving), consumption of cooked vegetables and vegetables 5 to 7x / week decreased from 24% to 14,9%, consumption of fruit or fruit salad 5 to 7x / week from 69% to 39.8%, consumption of whole milk or yogurt 5 week week 7 from 38.9% to only 3.1% and the consumption of skimmed milk from 32.8% to 2.2%. We found more consumption of sodas after pregnancy. Age, schooling and income were considered to be the main determinants for the consumption of fruits and soft drinks during pregnancy and postpartum. Pregnant women with DMG showed worsening of postpartum food practices in relation to the period of gestation. It is possible that women interrupt nutritional care attention after birth, showing that it is necessary to follow these women after the baby is born

Hydrotalcites: A Highly Efficient Ecomaterial For Effluent Treatment Originated From Carbon Nanotubes Chemical Processing

It has been reported that a mixture of carboxylated carbonaceous fragments (CCFs), so called oxidation debris, are generated during carbon nanotubes chemical processing using oxidant agents such as HNO3. The elimination of these fragments from carbon nanotubes surface has been point out to be a crucial step for an effective functionalization of the nanotubes as well as for improving the material. However, this process can introduce a potential environmental problem related water contamination because these CCFs can be viewed as a mixture of carbonaceous polyaromatic systems similar to humic substances and dissolved organic matter (DOM). The negative aspects of humic substances and DOM to water quality and wastewater treatment are well known. Since carbon nanotubes industry expands at high rates it is expected that effluent containing oxidation debris will increase since HNO3 chemical processing is the most applied method for purification and functionalization of carbon nanotubes. In this work, we have demonstrated that Hydrotalcites (HT) are highly efficient to remove oxidation debris from effluent solution originated from HNO3-treated multiwalled carbon nanotubes. 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Low-level laser (light) therapy (LLLT) on muscle tissue: performance, fatigue and repair benefited by the power of light

The use of low level laser (light) therapy (LLLT) has recently expanded to cover areas of medicine that were not previously thought of as the usual applications such as wound healing and inflammatory orthopedic conditions. One of these novel application areas is LLLT for muscle fatigue and muscle injury. Since it is becoming agreed that mitochondria are the principal photoacceptors present inside cells, and it is known that muscle cells are exceptionally rich in mitochondria, this suggests that LLLT should be highly beneficial in muscle injuries. The ability of LLLT to stimulate stem cells and progenitor cells means that muscle satellite cells may respond well to LLLT and help muscle repair. Furthermore the ability of LLLT to reduce inflammation and lessen oxidative stress is also beneficial in cases of muscle fatigue and injury. This review covers the literature relating to LLLT and muscles in both preclinical animal experiments and human clinical studies. Athletes, people with injured muscles, and patients with Duchenne muscular dystrophy may all benefit

O controle dos incendios florestais pelo corpo de bombeiros de Santa Catarina

O estado de Santa Catarina estabeleceu constitucionalmente que 0 Corpo de Bombeiros Militar é o órgão responsável pelas ações de controle de incêndios florestais em seu território. Este trabalho apresenta uma analise da situação atual deste órgão, visando principalmente avaliar as suas condições operacionais para fazer frente aos incêndios florestais. Para atingir esse objetivo foram analisadas as ações preventivas, os programas de formação de pessoal, as normas logísticas para aquisição e os materiais disponíveis, bem como foi realizada uma analise da legislação pertinente aos incêndios florestais no estado. Essas ações foram comparadas com preceitos doutrinários sobre os temas levantados na revisão bibliográfica. 0 trabalho apresenta também um levantamento do quantitativo dos incêndios florestais ocorridos e registrados no período de 2000 a 2004. Esses dados foram obtidos mediante a realização de uma pesquisa junto as organizações de bombeiros em atividade no estado. Por fim, traz uma proposta técnica cujo objetivo e servir de base para a estruturação do setor de prevenção e combate a incêndios florestais no estado de Santa Catarina, principalmente pelo Corpo de Bombeiros, enfocando aspectos relacionados a equipamentos, formação de pessoal e adequação de suas normas técnica

Planejamento estrat?gico: uma proposta de implanta??o para uma empresa do ramo el?trico

In the small business universe, where the difficulties of internal and external environment pressure entrepreneurs to minimize errors, strategic planning emerges as a very useful management tool in decision making, making tangible the variables that can reach the company both positively and negatively. Through strategic planning, the organization will have the means to measure and exploit its strengths, it can mitigate or eliminate its weaknesses, seize market opportunities and prevent threats. In its twenty-eight years of operation, the company that participates in this project has never elaborated a strategic planning, thus, the objective of the present work is to elaborate a strategic planning for an electrical branch company. This research is characterized as a case study, descriptive, qualitative approach, carried out through the company?s documents, bibliographic research, semi-structured interview and questionnaires. Based on the methodology proposed by Vasconcellos Filho and Pagnoncelli and the information collected, all stages of the Strategic Planning were considered. Therefore, the results obtained in this research were: elaboration of strategic planning, business definition, mission review, vision and values; analysis of internal and external environment; the development of the SWOT analysis; creation of the company objective; proposing future strategies and drawing up the action plan. With the implementation of this planning, the company will be stronger to face the adversities, and, at the same time, it can absorb the opportunities, creating a competitive advantage.No universo das pequenas empresas, onde as dificuldades oriundas do ambiente interno e externo pressionam os empres?rios a minimizarem os erros, o planejamento estrat?gico surge como uma ferramenta de gest?o muito ?til na tomada de decis?o, tornando palp?vel as vari?veis que podem atingir a empresa tanto positivamente quanto negativamente. Atrav?s do planejamento estrat?gico a organiza??o ter? meios de mensurar e explorar seus pontos fortes, poder? atenuar ou eliminar os seus pontos fracos, aproveitar as oportunidades de mercado e prevenir-se contra as amea?as. Nos seus vinte e oito anos de atua??o, a empresa participante deste projeto nunca elaborou um planejamento estrat?gico, assim, o objetivo do presente trabalho ? elaborar um planejamento estrat?gico para uma empresa do ramo el?trico. Essa pesquisa ? caracterizada como estudo de caso, descritiva, de abordagem qualitativa, realizada atrav?s de documentos da empresa, pesquisa bibliogr?fica, entrevista semiestruturada e question?rios. A partir da metodologia proposta por Vasconcellos Filho e Pagnoncelli e das informa??es coletadas, contemplou-se todas as etapas do Planejamento Estrat?gico. Diante disso, os resultados obtidos nessa pesquisa foram: elabora??o do planejamento estrat?gico, defini??o do neg?cio, revis?o da miss?o, vis?o e valores; an?lise do ambiente interno e externo; o desenvolvimento da an?lise SWOT; cria??o do objetivo da empresa; proposi??o das estrat?gias futuras e elabora??o do plano de a??o. Com a implementa??o deste planejamento a empresa estar? mais forte para enfrentar as adversidades e, ao mesmo tempo, poder? absorver as oportunidades criando vantagem competitiva

Características físicas do pelame de matrizes suínas em sistemas de criação ao ar livre

Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Curso de Agronomia, 2019.O objetivo deste trabalho foi realizar um estudo acerca das características morfológicas das cerdas de matrizes suínas em um sistema de criação de suínos ao ar livre, a partir da avaliação do diâmetro e comprimento das cerdas e relacionando com variáveis meteorológicas. Entre dezembro de 2017 e abril de 2018, foram analisadas as matrizes suínas, separadas em quatro grupos de acordo com a pigmentação da superfície corporal, provenientes de linhagem comercial, no setor de gestação da Unidade Demonstrativa de Sistema de Criação de Suínos ao Ar Livre (UDCAL) da Fazenda Água Limpa da Universidade de Brasília. No setor, as matrizes foram alojadas em 15 piquetes de 1000 m² de área cada, onde foram coletadas as cerdas com o auxílio de alicates das regiões: paleta, lombo e pernil. A mensuração do diâmetro das cerdas foi realizada com o auxílio de um micrômetro de precisão, para o comprimento das cerdas foi mensurado com o auxílio de um paquímetro digital. Para a caracterização do ambiente utilizou-se a média dos dados de temperatura do ar (ºC), Umidade relativa (%) e radiação solar (W/m²), dos horários entre as 8:00 e 17:00 horas da base de dados da estação meteorológica da Fazenda Água Limpa – UnB. Os dados foram analisados por meio de análise de variância e análise de frequência com o auxílio do programa “Statistical Analysis System”, considerando o efeito de animais, meses de coleta e regiões corporais. Observou-se uma diferença significativa (p<0,05) para todas as fontes de variação avaliadas no experimento. Durante os meses de dezembro e janeiro, onde se obteve as maiores temperaturas e incidência de radiação solar, constatou-se um diâmetro de cerda menor do que nos meses mais frios, diferindo de outros mamíferos manejados em ambientes tropicais, também foi possível observar que para o mês de abril que se obteve a menor média de temperatura no valor de 23,24ºC, constatouse a maior média de comprimento das cerdas com um valor de 44,72mm, uma diferença de aproximadamente 13mm em relação ao mês mais quente. Conclui-se que para animais de pouca pigmentação as cerdas possuíam um maior comprimento e menor diâmetro, diferindo de outras espécies manejadas sob condições semelhantes, reforçando a necessidade de mais estudos para avaliação de padrões morfológicos ideais para suínos criados ao ar livre em ambientes tropicais.The aim of this work was to study the morphological characteristics of pig bristles reared in a free range system, based on the evaluation of the diameter and length of the bristles and correlated to meteorological variables. Between December 2017 and April 2018, the swine matrices from commercial lineage were splitted in four groups in accordance to the pigmentation of body surface and were analyzed in the gestation sector of the Unidade Demonstrativa de Sistema de Criação de Suínos ao Ar Livre (UDCAL) from Água Limpa Farm of the University of Brasília. In the sector, the sows were housed in 15 pickets of 1000 m² of area each, where the bristles were collected with the use of pliers from the body regions: palette, loin and shank. The measurement of the diameter of the bristles was performed with the aid of a precision micrometer, and for the length of the bristles it was measured with the aid of a digital caliper. For the characterization of the environment, the average data of air temperature (ºC), relative humidity (%) and solar radiation (W / m²) were used, from 8:00 a.m. to 5:00 p.m. weather station of Fazenda Água Limpa - UnB. Data were analyzed through analysis of variance and frequency analysis with the aid of the "Statistical Analysis System" program, considering the effects of animals, months and body regions. A significant difference (p <0.05) was observed for all sources of variation evaluated in the experiment. During the months of December and January, where the highest temperatures and solar radiation were observed, a smaller diameter was observed in comparison with the colder months, differing from other mammals managed in tropical environments. Also for April it was observed the least temperature average in the value of 23,24ºC, and there was measured the biggest average of length of the bristles with a value of 44,72mm, a difference of approximately 13mm compared to the hottest months. It is concluded that for animals of low pigmentation the bristles had a longer length and a smaller diameter, differing from other species managed under similar conditions, reinforcing the need for further studies to evaluate morphological patterns ideal for free range system grown in tropical environments