36 research outputs found
A INSERÇÃO DOS ESTUDANTES DO CURSO DE LICENCIATURA PLENA EM QUÍMICA NA INICIAÇÃO CIENTÍFICA A PARTIR DA PRODUÇÃO DE ARTIGOS CIENTÍFICOS DA FACULDADE DE FORMAÇÃO DE PROFESSORES DA MATA SUL-PE.
Este estudio analizó la integración de los estudiantes de Licenciatura en Química, Facultad de Formación del Profesorado Bosque Sur Pernambuco / Brasil. Se trata de uma pesquisa descritiva, donde la recolección de datos fue a partir de una revisión de la literatura y de los cuestionarios, entrevistas abiertas y escritura de la observación de las prácticas educativas en el contexto de la enseñanza-aprendizaje de la investigación cuantitativa , cualitativa e descritiva de Enseñanza Grado en Química, Facultad de Formación del Profesorado Bosque Sur Pernambuco / Brasil. Ellos fueron identificados y analizados los aspectos relacionados con la práctica docente; aprendizaje significativo; la producción de artículos científicos y sus consecuencias, así como la producción científica de los estudiantes universitarios de grado completo en Química, Facultad de Formación de Profesores de Mata de Pernambuco Sur / Brasil. Teniendo en cuenta los resultados, se observó que se encuentra dentro de la perspectiva pedagógica que implica la producción de artículos científicos como contribución significativa al aprendizaje de modo que no es prioritaria la inclusión de estudiantes graduados en completo Licenciatura en Química en proyectos de investigación y publicaciones, participación en actas de conferencias con el fin de mejorar las cualidades deseadas en un mayor nivel de formación profesional en cualquier área, así como para motivar e iniciar la formación de aquellos que tienen una marcada tendencia a la investigación. En cuanto a los estudiantes, la mayoría reconoce la importancia y la necesidad de crecimiento y mejora de esta actividad en la formación de grado completo con especialización en química, por lo que la participación de los estudiantes en estas actividades debe ser cada vez más importante y motivado. Además, una práctica pedagógica centrada en el sesgo de la investigación como herramienta para la generación de conocimiento y crecimiento académico fue identificado de manera adecuada por los estudiantes
The influence of the attributes of “Internet of Things” products on functional and emotional experiences of purchase intention
Purpose – “Internet of things” is a broad term used to describe network connectivity to physical objects. Called connectable or smart objects, they are embedded in electronic circuits and software that make them capable of detecting, collecting and transmitting data and information. This paper aims to examine the influence of the attributes of “internet of things” products in the functional and emotional experience of purchase intention. Design/methodology/approach – The study used a model adapted from Yaping et al. (2014), with adjustment for the constructs “emotional experience”, “functional experience” and “purchase intention”. The survey consisted of a sample of 747 valid questionnaires regarding users of “internet of things” products, through a structured questionnaire with 36 assertions, which were answered based on the Likert scale. The quantitative research approach followed an exploratory descriptive phase followed by the application of structural equation modeling. Findings – Results validated most of the relationships of the model, with high levels of significance. In addition, there was a greater influence of emotional experience than functional on purchase intention for the selected sample, which mainly consisted of young people. Originality/value – In short, the study confirmed the statistical significance of the structural paths, indicating that the proposed model is consistent, and with an appropriate adjustment can be applied in future research
A inserção dos estudantes do curso de licenciatura plena em química na iniciação científica a partir da produção de artigos científicos da faculdade de formação de professores da Mata Sul-Pernambuco
Esse estudo busca responder a seguinte questão: A produção científica contribui como estratégia de inserção de estudantes do curso de licenciatura plena em química na iniciação científica? Tem-se como objetivo geral investigar como estratégia didática a inserção da produção científica com os estudantes do curso de licenciatura plena em química da Faculdade de Formação de Professores da Mata Sul-PE. Neste sentido tem-se como objetivo geral desta pesquisa investigar como ocorre a inserção dos estudantes do curso de licenciatura plena em química da Faculdade de Formação de Professores da Mata Sul-PE, na iniciação científica a partir da produção de artigos científicos e como objetivos específicos apresentar uma abordagem teórica sobre a iniciação científica e a metodologia de docência superior; Destacar a importância das concepções semânticas da Ciência e da iniciação científica; Mostrar teoricamente a relevância sobre a experimentação e o método científico; Compreender a relação de estudantes de química na iniciação científica. Analisar instrumentos como questionário e entrevista abordando a pesquisa e a iniciação científica como ferramentas geradoras de publicações de artigos científicos
Prospecção Patentária de Alternativas Tecnológicas para o Gerenciamento da Pelagem Suína
The increase in pig farming has driven the growth of industries specializing in slaughtering and processing pork. However, one challenge faced by these industries is the disposal of pig fur, which is often disposed of improperly. This study aims to identify technological alternatives to manage the pig coat, using the patent databases of the World Intellectual Property Organization (WIPO-Patentscope) and the National Institute of Industrial Property (INPI). Employing a unique strategy in both patent databases, it was found that there was a lack of documents in the BPTO database, suggesting an incipient development or lack of concern about the management of this waste in the country. On the other hand, in WIPO-Patentscope, 117 patents related to the use of pig fur were found, and 17 were selected that were suitable for the research. The main alternatives include the production of cosmetics, flour, food additives, paint brushes, power generation, fodder, protein fertilizers, medicine, and various brushes.O aumento da suinocultura tem impulsionado o crescimento de indústrias especializadas em abate e processamento de carne suína. No entanto, um desafio enfrentado por essas indústrias é a destinação da pelagem suína, frequentemente descartada de forma inadequada. Este estudo visa a identificar alternativas tecnológicas para gerenciar a pelagem suína, utilizando as bases de patentes da Organização Mundial da Propriedade Intelectual (WIPO-Patentscope) e do Instituto Nacional da Propriedade Industrial (INPI). Empregando uma estratégia única em ambos os bancos de patentes, constatou-se a falta de documentos no banco do INPI, sugerindo um desenvolvimento incipiente ou a falta de preocupação sobre o gerenciamento desse resíduo no país. Por outro lado, na WIPO-Patentscope, foram encontradas 117 patentes relacionadas ao aproveitamento da pelagem suína, sendo selecionadas 17 que se adequavam à pesquisa. As principais alternativas incluem a produção de cosméticos, de farinha, de aditivos alimentares, de pincéis de pintura, de energia, de forragem, de fertilizantes proteicos, de medicamento e de escovas diversas
“I’m the one who Doesn’t put my Credit Card There!”: A Study of the Antecedents of Loyalty in the Online Context
We present in this paper a hypothesized model with antecedent variables of loyalty towards a website (website quality, reputation, security, perceived benefit and trust) and the mediating role of perceived value in this relationship. The collection was carried out through an online survey in which 243 respondents participated. The data obtained were analyzed by means of structural equation modeling with estimation of the correlation matrix by partial least squares. Even though 10 (of the 14) hypotheses were confirmed, neither the safety perceived by the internet user, nor the reputation of the website were significant to explain the loyalty of the sample. This shows a crucial point for marketing managers to address, given that users’ perception of these constructs reveals a gap in relation to the ideal scenario
Long-term postoperative atrophy of contralateral hippocampus and cognitive function in unilateral refractory MTLE with unilateral hippocampal sclerosis
Objective: This study aimed to evaluate long-term atrophy in contralateral hippocampal volume after surgery for unilateral MTLE, as well as the cognitive outcome for patients submitted to either selective transsylvian amygdalohippocampectomy (SelAH) or anterior temporal lobe resection (ATL). Methods: We performed a longitudinal study of 47 patients with MRI signs of unilateral hippocampal sclerosis (23 patients with right-sided hippocampal sclerosis) who underwent surgical treatment for MTLE. They underwent preoperative/postoperative high-resolution MRI as well as neuropsychological assessment for memory and estimated IQ. To investigate possible changes in the contralateral hippocampus of patients, we included 28 controls who underwent two MRIs at long-term intervals. Results: The volumetry using preoperative MRI showed significant hippocampal atrophy ipsilateral to the side of surgery when compared with controls (p b 0.0001) but no differences in contralateral hippocampal volumes. The mean postoperative follow-up was 8.7 years (±2.5 SD; median = 8.0). Our patients were classified as Engel I (80%), Engel II (18.2%), and Engel III (1.8%). We observed a small but significant reduction in the contralateral hippocampus of patients but no volume changes in controls. Most of the patients presented small declines in both estimated IQ and memory, which were more pronounced in patients with left TLE and in those with persistent seizures. Different surgical approaches did not impose differences in seizure control or in cognitive outcome. Conclusions: We observed small declines in cognitive scores with most of these patients, which were worse in patients with left-sided resection and in those who continued to suffer from postoperative seizures. We also demonstrated that manual volumetry can reveal a reduction in volume in the contralateral hippocampus, although this change was mild and could not be detected by visual analysis. These new findings suggest that dynamic processes continue to act after the removal of the hippocampus, and further studies with larger groups may help in understanding the underlying mechanisms
Different methods of cell quantification can lead to different results : a comparison of digital methods using a pilot study of dendritic cells in HIV-positive patients
Although new digital pathology tools have improved the positive cell quantification, there is a heterogeneity of the quantification methods in the literature. The aim of this study was to evaluate and propose a novel dendritic cells quantification method in squamous cell carcinoma comparing it with a conventional quantification method. Twenty-six squamous cell carcinomas HIV-positive cases affecting the oropharynx, lips and oral cavity were selected. Immunohistochemistry for CD1a, CD83, and CD207 was performed. The immunohistochemical stains were evaluated by automated examination using a positive pixel count algorithm. A conventional quantification method (unspecific area method; UA) and a novel method (specific area method; SA) were performed obtaining the corresponding density of positive dendritic cells for the intratumoral and peritumoral regions. The Mann-Whitney U test was used to verify the influence of the quantification methods on the positive cell counting according to the evaluated regions. Data were subjected to the ANOVA and Student?s t-test to verify the influence of the tumour location, stage, histological grade, and amount of inflammation on the dendritic cells density counting. The cell quantification method affected the dendritic cells counting independently of the evaluated region (P-value <0.05). Significant differences between methods were also observed according to the tumour features evaluations. The positive cell quantification method influences the dendritic cells density results. Unlike the conventional method (UA method), the novel SA method avoids non-target areas included in the hotspots improving the reliability and reproducibility of the density cell quantification
Inclusion of crude corn oil with high acidity in the feed of laying hens: analysis of egs production and quality
The objective of this study was to evaluate egg production and quality after including crude corn oil with high acidity (CCOHA) in the feed of laying hens. The design was completely randomized to three treatments and six replicates each. The sample included 90 hens of the Lohmann LSL lineage, housed in cages; each cage contained five animals and constituted an experimental unit. The evaluated feeds were corn-based feed with degummed soybean oil (CSO), corn-based feed with CCOHA (CC) and sorghum-based feed with CCOHA (SC). At the end of the 28-day cycle, the following productivity parameters were evaluated: egg weight at laying (EWL), laying percentage (LP), feed conversion per dozen eggs (FCDZ) and feed conversion per egg mass (FCEM). The evaluated internal and external quality parameters of the eggs were yolk percentage (YP), yolk index (YI), and yolk pH (YpH); albumen percentage (AP), albumen index (AI), and albumen pH (ApH); percentage shell (PS) and shell surface area (SSA); Haugh unit (HU) and egg yolk color (EYC). There were no significant differences in EW, LP, FCDZ, and FCEM between the experimental feeds. Moreover, the use of crude corn oil with high acidity in laying hens rations did not influence the parameters of YP, YI, YpH, AP, AI, ApH, PS, SSA, HU, and EYC
Brazilian recommendations on the safety and effectiveness of the yellow fever vaccination in patients with chronic immune-mediated inflammatory diseases
Background: In Brazil, we are facing an alarming epidemic scenario of Yellow fever (YF), which is reaching the most populous areas of the country in unvaccinated people. Vaccination is the only effective tool to prevent YF. In special situations, such as patients with chronic immune-mediated inflammatory diseases (CIMID), undergoing immunosuppressive therapy, as a higher risk of severe adverse events may occur, assessment of the risk-benefit ratio of the yellow fever vaccine (YFV) should be performed on an individual level. Main body of the abstract: Faced with the scarcity of specific orientation on YFV for this special group of patients, the Brazilian Rheumatology Society (BRS) endorsed a project aiming the development of individualized YFV recommendations for patients with CIMID, guided by questions addressed by both medical professionals and patients, followed an internationally validated methodology (GIN-McMaster Guideline Development). Firstly, a systematic review was carried out and an expert panel formed to take part of the decision process, comprising BRS clinical practitioners, as well as individuals from the Brazilian Dermatology Society (BDS), Brazilian Inflammatory Bowel Diseases Study Group (GEDIIB), and specialists on infectious diseases and vaccination (from Tropical Medicine, Infectious Diseases and Immunizations National Societies); in addition, two representatives of patient groups were included as members of the panel. When the quality of the evidence was low or there was a lack of evidence to determine the recommendations, the decisions were based on the expert opinion panel and a Delphi approach was performed. A recommendation was accepted upon achieving ≥80% agreement among the panel, including the patient representatives. As a result, eight recommendations were developed regarding the safety of YFV in patients with CIMID, considering the immunosuppression degree conferred by the treatment used. It was not possible to establish recommendations on the effectiveness of YFV in these patients as there is no consistent evidence to support these recommendations. Conclusion: This paper approaches a real need, assessed by clinicians and patient care groups, to address specific questions on the management of YFV in patients with CIMID living or traveling to YF endemic areas, involving specialists from many areas together with patients, and might have global applicability, contributing to and supporting vaccination practices. We recommended a shared decision-making approach on taking or not the YFV