Researchers
Mostrando 37-48 de 2644 artigos, teses e dissertações.
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37. Cold sintering and electric characterization of ZnO-BaTiO3 composites
Abstract The sintering is an essential step in the processing of ceramics materials. A number of researchers have reported new techniques for sintering. However, in general, the process still demands high temperatures. This paper reports the results of the cold sintering of ZnO-BaTiO3 composites. The microstructural, structural, and electric properties of th
Cerâmica. Publicado em: 2021-03
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38. Escalonamento de tecnologias: desenvolvimento de produto e processo do laboratório à escala piloto conectado ao mercado (parte 1)
In this article, it is described the main aspects to be considered during the process of scaling up hard sciences technologies developed in the Science and Technology Institutes aiming at industrial application. Based on the experience of our group in scaling up, pre-acceleration, and acceleration of different technologies, a methodology was developed and di
Quím. Nova. Publicado em: 2021-03
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39. Structure-Physical Properties Relationship of Eutectic Solvents Prepared from Benzyltriethylammonium Chloride and Carboxylic Acids
Deep eutectic solvents (DESs) have attracted the attention of the researchers as alternative solvents due to desirable properties such as easy preparation and high thermal stability. In this work, it was reported the preparation of five DESs from benzyltriethylammonium chloride (BTEAC) as quaternary ammonium salt (QAS) and carboxylic acids (oxalic, malonic o
J. Braz. Chem. Soc.. Publicado em: 2021-03
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40. Physico-chemical and Nutraceutical Characterization of Selected Indigenous Guava (Psidium guajava L.) Cultivars
Abstract In order to ascertain physicochemical and nutraceutical attributes, indigenous guava (Psidium guajava L.) cultivars were comprehensively characterized. Eight cultivars namely Gola, Chota Gola, Surahi, Choti Surahi, Sufaida, Sdabahar, Lal Badshah and Karela were selected due to their climatic adaptability and commercial suitability. All the cultivars
Food Sci. Technol. Publicado em: 2021-03
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41. Comparison of Laboratory and Radiological Findings of Pregnant and Non-PregnantWomen with Covid-19
Abstract Objective Covid-19 became a pandemic, and researchers have not been able to establish a treatment algorithm. The pregnant population is also another concern for health care professionals. There are physiological changes related to pregnancy that result in different laboratory levels, radiological findings and disease progression. The goal of the p
Rev. Bras. Ginecol. Obstet.. Publicado em: 2021-03
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42. Analysis of scientific production on the new coronavirus (COVID-19): a bibliometric analysis
ABSTRACT BACKGROUND: The pandemic of the new coronavirus has culminated in a scientific race to seek knowledge about this virus and its treatments, vaccines and preventive strategies, in order to reduce its impact on healthcare and economics worldwide. Hence, it is important to recognize the efforts of researchers who are at the forefront of investigations
Sao Paulo Med. J.. Publicado em: 2021-02
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43. Deglutition Impairment during Dual Task in Parkinson Disease Is Associated with Cognitive Status
Abstract Introduction Dysphagia is a relevant symptom in Parkinson disease (PD), and its pathophysiology is poorly understood. To date, researchers have not investigated the effects of combined motor tasks on swallowing. Such an assessment is of particular interest in PD, in which patients have specific difficulties while performing two movements simultaneo
Int. Arch. Otorhinolaryngol.. Publicado em: 2021-01
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44. What editors, reviewers, researchers and librarians need to know about the PRESS, MECIR, PRISMA and AMSTAR instruments with regard to improving the methodological quality of searches for information for articles
RESUMEN La educación corporal escolar aplicada en el sistema educativo argentino se valió de diferentes estrategias. Una de ellas fue la educación alimentaria que, basándose en la Escuela Nueva, buscaba modificar hábitos, costumbres y transformar “naturalezas”. Del análisis de los Programas para la escuela primaria del período y de los ejemplares
Sao Paulo Med. J.. Publicado em: 2020-12
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45. Lutein as a functional ingredient in sheep milk yogurt: development, characterization and extraction recovery
Abstract The research aimed to evaluate the behavior of different concentrations of lutein added in sheep milk yogurt. The work verified the effect on acidity, pH, color, lutein degradation, and recovery during storage. Different added lutein concentration into yogurt were compared: 0.00 mg; 3.0 mg; 3.45 mg; and 3.9 mg (·100 mL-1). Analyzes were performed o
Food Sci. Technol. Publicado em: 2020-12
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46. Strategies used to control the costs of underground ventilation in some Brazilian mines
Abstract In an underground mine, the ventilation is responsible for 25% to 50% of its electrical energy consumption. In countries such as South Africa, United States and Canada researchers have started to achieve a significant reduction in energy consumption without neglecting aspects of the quantity and quality of air required for the best performance of th
REM, Int. Eng. J.. Publicado em: 2020-12
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47. Prevalence and comorbidity of psychiatric symptomology in Pakistani female adolescents
Abstract Background Previous researchers have demonstrated the co-existence of psychiatric conditions across clinical as well as non-clinical samples in diverse situations. The present study examined the prevalence and co-morbidity of various psychiatric symptoms (e.g. learning disabilities, depression and anxiety) in school-age female adolescents. Methods
Arch. Clin. Psychiatry (São Paulo). Publicado em: 2020-10
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48. Study of ongoing registered clinical trials on COVID-19: a narrative review
ABSTRACT BACKGROUND: The dangerous SARS-CoV-2 virus first emerged in China in December 2019 and has rapidly spread worldwide. Currently, it has affected more than 2,850,000 people. No vaccine or drug is available yet, and therefore researchers and scientists are striving to identify potential drugs or vaccines for combating this virus. We were unable to fi
Sao Paulo Med. J.. Publicado em: 2020-10