Stress analysis to the outer frame of a wheelchair

The objective of the present article is to study a wheelchair in a way to lighten it and make it more comfortable to the user. For that, a structural analysis was carried out in order to study one component from the wheelchair. The component that was chosen was the outer frame since it is one of the most important elements in the structure of the wheelchair. The outer frame is a structural element that supports the weight of the user, and contributes to the structural rigidness and stability of the wheelchair. Since the structural analysis of the component is the objective of this article, static and fatigue studies were carried out. For each study, static and fatigue, there was an analytical and numerical analysis. Later with basis on the results obtained from the static and fatigue studies, there was a comparison between the analytical and the numerical analysis of each. With regard to the analytical analysis, the study was performed with basis on bibliography which pertained to the study. With regard to the numerical analysis, the study was performed with the help of computer software namely SolidWorks®info:eu-repo/semantics/publishedVersio

A comparison of automated time series forecasting tools for smart cities

Most smart city sensors generate time series records and forecasting such data can provide valuable insights for citizens and city managers. Within this context, the adoption of Automated Time Series Forecasting (AutoTSF) tools is a key issue, since it facilitates the design and deployment of multiple TSF models. In this work, we adapt and compare eight recent AutoTSF tools (Pmdarima, Prophet, Ludwig, DeepAR, TFT, FEDOT, AutoTs and Sktime) using nine freely available time series that can be related with the smart city concept (e.g., temperature, energy consumption, city traffic). An extensive experimentation was carried out by using a realistic rolling window with several training and testing iterations. Also, the AutoTSF tools were evaluated by considering both the predictive performances and required computational effort. Overall, the FEDOT tool presented the best overall performance.This work has been supported by FCT - Fundação para a Ciência e Tecnologia within the R&D Units Project Scope: UIDB/00319/2020 and the project “Integrated and Innovative Solutions for the well-being of people in complex urban centers” within the Project Scope NORTE-01-0145-FEDER-000086

CONSORT compliance in randomized surgical trials assessing the analgesic and anti-inflammatory effectiveness of preoperative drug management of patients undergoing mandibular third molar surgery:a scoping review

Investigate methodological quality of clinical trials in mandibular third molar surgery and its compliance with the consort statement. An electronic search was performed in five journal websites, chose the five scientific journals with the greatest impact factor in oral and maxillofacial surgery according to the SCImago Journal Rank. The compliance of studies with the CONSORT statement was assessed. Also, the risk of bias of each study was evaluated. Twenty-nine studies were included. The average CONSORT compliance score was 25.50 (79.68%). Most studies were performed in the Americas (n = 14, 48.3%) and Asia (n = 10, 34.5%). Parallel-group (n=15, 51.7%) and split-mouth RCTs (n=11, 38%) were the most prevalent study design. An inverse correlation was observed between the year of publication and the number of Scopus citations (p<0.001), time between acceptance and publication (p<0.001), and time between study completion and publication (p=0.040). Understanding the correct use of guidelines, such as the CONSORT statement, is necessary to reduce methodological errors and possible bias, thereby ensuring reliable knowledge dissemination

Use of Curcuma longa in cosmetics: extraction of curcuminoid pigments, development of formulations, and in vitro skin permeation studies

Curcuma longa é uma erva aromática, pertencente à família Zingiberaceae e seus rizomas contêm pigmentos curcuminoides, dentre eles a curcumina, conhecida por seu efeito anti-inflamatório. O objetivo deste trabalho foi obter extratos ricos nestes pigmentos, desenvolver e avaliar a estabilidade de formulações tópicas e realizar o estudo da penetração cutânea. Extratos de Curcuma longa foram obtidos e utilizados no desenvolvimento de formulações. A penetração e retenção cutâneas de pigmentos curcuminoides foi avaliada em pele de orelha de porco, utilizando célula de difusão de Franz modificada. As formulações de gel creme preparadas que continham ureia foram instáveis e as demais apresentaram estabilidade satisfatória e comportamento reológico pseudoplástico. A quantidade de pigmentos curcuminoides encontrada na solução receptora foi insignificante, enquanto que a quantidade retida na pele foi superior a 20 µg/g de pele. Concluiu-se como possível o desenvolvimento de formulações tópicas contendo curcumina ou extrato de Curcuma longa, conciliando a adição de adjuvantes para a preservação e maior durabilidade da mesma. As formulações promoveram a penetração da curcumina limitada às camadas superiores da pele, possivelmente sem o risco de ocorrência de ação sistêmica sendo possível a sua utilização para ação local com atividade anti-inflamatória.Curcuma longa is a ginger family aromatic herb (Zingiberaceae) whose rhizomes contain curcuminoid pigments, including curcumin, a compound known for its anti-inflammatory effects. The objective of this study was to obtain curcuminoid-rich extracts, develop topical formulations thereof, and assess the stability and skin permeation of these formulations. Curcuma longa extracts were obtained and used to develop formulations. Skin permeation studies were conducted in a modified Franz diffusion cell system, and skin retention of curcuminoid pigments was quantified in pig ear membrane. Prepared urea-containing gel-cream formulations were unstable, whereas all others had satisfactory stability and pseudoplastic rheological behavior. The amount of curcuminoid pigments recovered from the receptor solution was negligible. The skin concentration of curcuminoid pigments retained was positive (>;20 µg/g of skin, mostly in the stratum corneum), considering the low skin permeability of curcumin. We conclude that development of topical formulations containing curcumin or Curcuma longa extract is feasible, as long as adjuvants are added to improve preservation and durability. The formulations developed in this study enabled penetration of curcumin limited to the superficial layers of the skin and then possibly without a risk of systemic action, thus permitting local use as a topical anti-inflammatory

Estimativas de perda de solo em ambiente SIG utilizando diferentes fontes de dados topográficosEstimates of soil loss in a GIS environment using different sources of topographic data

O estudo da erosão, por meio de ferramentas de geoprocessamento já é uma realidade, uma vez que minimiza o tempo necessário para se obterem dados para modelagem e tomada de decisão que ajudem na conservação dos solos e preservação ambiental. Contudo, a qualidade dos dados, bem como suas diversas características, como por exemplo as diversas resoluções de dados topográficos, devem ser observadas para que se encontrem valores de perda de solo que se aproximem ao máximo da realidade. O presente trabalho teve por objetivo avaliar a utilização de quatro fontes de dados altimétricos para se estimar a perda de solo em Sistemas de Informações Geográficas. As fontes de altimetria foram: carta planialtimétrica 1:10.000, carta planialtimétrica 1:50.000, modelo numérico de terreno Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER GDEM), modelo numérico de terreno Shuttle Radar Topography Mission (SRTM), sendo o primeiro e segundo tomados como referência por representarem a superfície mais detalhadamente. Para tanto usou-se a Equação Universal da Perda de Solo Revisada programada no SIG/SPRING pela da Linguagem Espacial para Geoprocessamento Algébrico (LEGAL). Pode ser verificado que, dependendo do dado altimétrico utilizado, os valores estimados de perda de solo foram discrepantes em relação à referência, mostrando que, quando se utilizam sistemas SIG para previsão de erosão, deve-se indicar em qual escala se encontrou tal estimativa.Abstract The study of erosion through geoprocessing tools is already a reality, since it minimizes the time required to obtain data for modeling and decision-making in order to help soil conservation and environmental preservation. However, the quality of data as well as its various features, such as the various resolutions of topographic data, must be observed to find soil loss values that are accurate to reality. This study aimed to evaluate the use of four sources of elevation data to estimate soil loss in Geographic Information Systems (GIS). Sources of altimetry were: letter planialtimetric1: 10.000, planialtimetric letter 1: 50.000, numerical terrain model Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER GDEM), Shuttle Radar Topography Mission (SRTM) terrain model number, the first and second taken as reference for representing the surface more precisely. Therefore, it was used the Revised Universal Soil Loss Equation (RUSLE) programmed in GIS/SPRING through GIS Spatial Language for Algebraic Geoprocessing. The results demonstrated that depending on the altimetry data used, the estimated values of soil loss can be discrepant regarding the reference data, showing that when using GIS systems for erosion prediction one should indicate at which scale such estimate was found

Comparação entre o uso e ocupação e perda de solo, nos anos de 1995 e 2010, na microbacia hidrográfica do CeveiroComparison between use and occupancy and soil loss, in the years 1995 and 2010, in the Ceveiro watershed

O presente trabalho avaliou a perda de solo entre os cenários de 1995 e 2010 da Microbacia Hidrográfica do Ceveiro (MBC) com o auxílio da USLE. Para tanto foram utilizadas carta topográfica 1:10000, imagem HRC do satélite CBERS-2B e demais informações que foram incorporadas ao banco de dados do SIG/SPRING. Como requisito para estimar perda de solo estabeleceu-se o uso atual da terra na Microbacia Hidrográfica do Ceveiro, situada no município de Piracicaba, SP. Observou-se um aumento das áreas de pasto e uma diminuição das áreas de pasto sujo de 136,43 ha. Com relação à cana-de-açúcar, não foi observada grandes alterações em valores de área, mas sim uma reorganização desse uso na MHC. Foi possível notar uma redução das perdas de solo de 1995 para 2010. Sendo que para o uso de 2010 observou-se uma diminuição nas perdas de solo de 57,77 ha para a classe de 20 a 50 Mg ha-1 ano-1, 50,82 ha para a classe de 50 a 100 Mg ha-1 ano-1 e 31,48 ha para a classe maior que 100 Mg ha-1 ano-1 em relação ao uso de 1995 o que foi confirmado pela exatidão do produtor e exatidão do usuário. Na comparação dos mapas foi utilizado o índice Kappa obtendo-se um valor de 0,67.AbstractThis study evaluated soil losses between 1995 and 2010 scenarios of Ceveiro watershed basin with the aid of USLE. For this end, we used 1:10000 topographic map, HRC image of CBERS-2B satellite and extra information was incorporated into the GIS database / SPRING. As requirement to estimate soil loss it was established the current land use in Ceveiro watershed basin, located in Piracicaba, São Paulo. It was observed an increase in pasture areas and a reduction in dirty pasture areas with 136,43 ha. Concerning sugar cane, it was not observed major changes in value area, but a reorganization of this use in MHC. It was also noted a reduction of soil losses from 1995 to 2010. As to the use of 2010 there was a decrease in soil loss of 57,77 ha for the class 20 – 50 Mg ha-1 year-1, 50,82 ha for the class 50 - 100 Mg ha-1 year-1 and 31,48 ha to the class greater than 100 Mg ha-1 year-1 in relation to the use of 1995 which was confirmed the accuracy of the producer and user accuracy. The comparison of the maps it was used Kappa index obtaining a value of 0,67

Percutaneous Endoscopic Retrieval of Gizzard Foreign Body in a Goose Using an Operative Telescope

Background: Foreign bodies are most commonly diagnosed in stomach (proventriculus and gizzard) of galliformes birds and waterfowl. Endoscopyis routinely used to assess birds’ respiratory, gastrointestinal and urogenital tracts. Endosurgeryis also used for sex determination and intra-coelomaticorgan biopsy. Benefits of endoscopic approaches are widely reported in birds. Conventional surgical approaches are far more invasive and risky for those patients. Thus, the purpose of this study was to describe a successful case of gizzard foreign body removal in a greylag goose (Anseranser), using a rigid endoscopic approach through a minimally invasive percutaneous access. Case: A 2-year-old female greylag goose, weighting 3,116 g, was referred to a Veterinary Teaching Hospital presenting apathy and anorexia for at least 24 h. The results on hematologic assessment were within normal range for the species. Radiographic examination indicated presence of radiopaque content, resembling gizzard sediment. Thus, the patient undergone to endoscopy for examination and aspiration of the content. The goose was fasted for 6 h. Anesthesia was induced by face mask and maintained by endotracheal tube, using isoflurane vaporized in 100% oxygen. The patient was positionedin the lateral recumbence. The patient’s neck was longer than the working length of the rigid endoscope. Thus, the telescope was inserted into the esophagus following a small distal esophagotomy, carried out on the caudal third of the neck. A 0º 10-mm operative rigid telescope, with a 6-mm working channel, and a 5-mm diameter and 42-cm in length laparoscopic Babcock forceps were used. The endoscope was inserted through the esophagotomy up to the ventricle level. Sand sediments and stones were viewed. The stones were grasped and retrieved, and the sediments were rinsed with normal saline solution and aspirated with a suction cannula through the working channel of the telescope. Inspection following sediment and foreign body retrieval revealed moderate inflammation of the gizzard mucosa. Total procedure time was 24 min. The patient recovered uneventfully and was discharged following 72 h. Discussion: Rigid endoscopy provided accurate visualization of the thoracic esophagus, proventriculus and gizzard. In general, endosurgery is usually employed for sex determination in birds. It is also useful to access digestive tract using rigid endoscopy, in order to remove foreign body. Such minimally approach reduces postoperative morbidity, which is usually seen following conventional surgical approaches. This technique has been used for removal of foreign body in the digestive tract of several species. Foreign bodies found within crop should require ingluviotomy. However, could be easily removed by endoscopy. If the foreign body is within the proventriculus or gizzard, rigid endoscopy may be useful, as celiotomy could cause morbidity. The small esophagotomy access at the base of the neck was essential for the procedure. In short-necked birds, a 30º Trendelenburg positioning provides more caudal access to the digestive tract. In this case, such positioning was unnecessary. In conclusion, the use of an operative telescope provided accurate retrieval of foreign bodies and drainage of sediments within the digestive tract. Moreover, it can be used as a minimally invasive approach to foreign bodies in the esophagus, crop or stomach (esophagus and gizzard) of geese

ETHNOGRAPHIC APPROACH: A METHODOLOGY, MANY POSSIBILITIES OF USE IN RESEARCH

Este editorial para este número especial da Revista “Brazilian Journal of Education, Technology and Society†(BRAJETS) em parceria com o 6º Congresso Ibero-Americano em Investigação Qualitativa (CIAIQ2017), tem como fio condutor a etnografia, metodologia que permeia o conteúdo dos 06 (seis) artigos nas versões estendidas dos trabalhos selecionados e convidados, pela comissão científica/organizadora do CIAIQ2017. Este número especial da BRAJETS traz como tema central o tema “Abordagem Etnográfica: Uma metodologia, muitas possibilidades de uso em pesquisasâ€. Esta parceria entre o CIAIQ e a BRAJETS busca a promoção e difusão da investigação qualitativa junto à comunidade científica nas áreas alvos da Revista que são: educação, tecnologia e sociedade. Com o objetivo de proporcionar qualidade e representatividade dos artigos publicados nesta revista, nos certificamos de que todos eles passassem por um processo de revisão double-blind, processo este que faz uso dos serviços de uma comissão científica composta de investigadores experientes, qualificados e extremamente ativos em suas respectivas áreas de atuação. Diante do exposto, convidamos a todos a desfrutar uma boa leitura deste número especial da Revista BRAJETS, e que o mesmo possa contribuir com inspirações e ideias para a redação e execução sejam de investigações, e trabalhos/artigos futuros.This editorial for this special issue of Brazilian Journal of Education, Technology and Society (BRAJETS), in partnership with the 6th Ibero-American Congress on Qualitative Research (CIAIQ2017), has its guiding principle the ethnography, methodology that permeates the content of the six (06) articles in the extended versions of the papers selected and invited by the scientific / organizing committee of CIAIQ2017, which address issues of education and health. This special issue of BRAJETS has as its central theme the theme "Ethnographic Approach: A methodology, many possibilities of use in research". This partnership between CIAIQ and BRAJETS seeks to promote and disseminate qualitative research to the scientific community in the target areas of this Journal which are: education, technology and society. In order to provide quality and representativeness of the articles published in this journal, we made sure that all underwent a double-blind review process, which uses the services of a scientific committee composed of experienced, qualified and extremely active researchers in their respective areas of activity. In the light of the above, we invite everyone to enjoy a good reading of this special issue of BRAJETS, and that it can contribute with inspirations and ideas for the writing and execution of future research, work and papers

ABORDAGEM METODOLÓGICA DA NETNOGRAFIA NA EDUCAÇÃO: ENCURTAR AS DISTâNCIAS ENTRE TEMPO E ESPAÇO

This editorial introduces this special edition of Cadernos de Educação, Tecnologia e Sociedade (CETS) in partnership with the 5th Ibero-American Congress on Qualitative Research (CIAIQ'2016). Containing a selection of 08 (eight) extended versions of the best works with an emphasis on education published in the CIAIQ'2016, this special edition brings as a central theme the theme “Methodological Approach of Netnography in Education: encouraging distances between time and spaceâ€. This partnership between CETS Journal and the CIAIQ Ibero-American Congress aims to promote the expansion and dissemination of qualitative research in the scientific community in the areas of education, technology and society. In order to provide increasingly of accuracy and quality of the articles published in this area, each article in this special issue were submitted to a process of double-blind review by a scientific committee composed of highly qualified researchers in their fields. We invite everyone to have a good reading of this edition and that it can collaborate for future works and researchers.Este editorial introduz esta edição especial dos Cadernos de Educação, Tecnologia e Sociedade (CETS) em parceria com o 5º Congresso Ibero-Americano em Investigação Qualitativa (CIAIQ’2016). Contendo uma seleção de 08 (oito) versões estendidas dos melhores trabalhos com ênfase em educação publicados no CIAIQ’2016. Esta edição especial traz como tema central o tema “Abordagem Metodológica da Netnografia na Educação: encurtar as distâncias entre tempo e espaçoâ€. Esta parceria da Revista CETS com o Congresso Ibero-Americano CIAIQ visa promover a expansão e a disseminação da investigação qualitativa na comunidade científica nas áreas de educação, tecnologia e sociedade. De forma a proporcionar, cada vez mais rigor e qualidade dos artigos publicados nesta área, cada artigo desta edição especial foram submetidos à um processo de revisão double-blind por uma comissão científica composta de investigadores altamente qualificados nas suas áreas de atuação. Convidamos a todos a fazer uma boa leitura desta edição e que esta possa colaborar para trabalhos e investigações futuras

Automated recognition of lung diseases in CT images based on the optimum-path forest classifier

The World Health Organization estimated that around 300 million people have asthma, and 210 million people are affected by Chronic Obstructive Pulmonary Disease (COPD). Also, it is estimated that the number of deaths from COPD increased 30% in 2015 and COPD will become the third major cause of death worldwide by 2030. These statistics about lung diseases get worse when one considers fibrosis, calcifications and other diseases. For the public health system, the early and accurate diagnosis of any pulmonary disease is mandatory for effective treatments and prevention of further deaths. In this sense, this work consists in using information from lung images to identify and classify lung diseases. Two steps are required to achieve these goals: automatically extraction of representative image features of the lungs and recognition of the possible disease using a computational classifier. As to the first step, this work proposes an approach that combines Spatial Interdependence Matrix (SIM) and Visual Information Fidelity (VIF). Concerning the second step, we propose to employ a Gaussian-based distance to be used together with the optimum-path forest (OPF) classifier to classify the lungs under study as normal or with fibrosis, or even affected by COPD. Moreover, to confirm the robustness of OPF in this classification problem, we also considered Support Vector Machines and a Multilayer Perceptron Neural Network for comparison purposes. Overall, the results confirmed the good performance of the OPF configured with the Gaussian distance when applied to SIM- and VIF-based features. The performance scores achieved by the OPF classifier were as follows: average accuracy of 98.2%, total processing time of 117 microseconds in a common personal laptop, and F-score of 95.2% for the three classification classes. These results showed that OPF is a very competitive classifier, and suitable to be used for lung disease classification