bluuebunny/crossref_metadata_2025 huggingface dataset:
Who is Sharing Physical Activity, Diet and Weight Loss Information on Twitter? An Exploratory Thematic and Source Analysis of Tweets
Authors: O'Kane Niamh Mairead , McKinley Michelle C , Gough Aisling , Badham Jennifer , Ajao Oluwaseun , Kee Frank , Hunter Ruth F
Published: September 2020

BackgroundSocial media platforms such as Twitter are used increasingly to consume and share information, including health-related information. Previous research has analysed the obesity conversation on Twitter, but no work to date has explored content related to specific contributing health behaviours, such as physical activity, diet and weight loss. The aim of this study was to identify the content and source of physical activity, diet and weight loss information on Twitter, in order to identify common content and sources of these tweets.Methods Exploratory thematic and source analysis was conducted on tweets containing the words “physical activity”, “diet”, or “weight loss”, collected over a 7-day period in March 2017. Sources were coded as professional, non-professional, or information intermediaries (non-protected titles and potentially misleading terms, such as ‘personal trainer’). Tweets were coded as educational (news and research, guidelines and recommendations), or non-educational (promotional, conversational, behavioural, or directing to another platform).ResultsA 1% sample of tweets (n=1,433) was analysed. The majority of tweets (69.2%) were related to diet, and most tweets were non-educational in nature. Among non-educational tweets, promotion of products or services was the most commonly identified theme (33.4%). Educational tweets comprised just under a third of the sample, and most of these (96.8%; n=455) came from non-professionals or information intermediaries. Most of the educational tweets from a non-professional source (74.0%; n=296) were providing advice in the form of recommendations or guidelines. Only 1.3% of all tweets came from a professional source. ConclusionsOnly 3% of the educational information shared on Twitter regarding physical activity, diet and weight loss came from a professional source. This suggests that Twitter users are at high risk of receiving information from non-professional sources, which may include non-evidence-based information or potentially harmful misinformation.
Microbicidal actives with virucidal efficacy against SARS-CoV-2 and other beta- and alpha-coronaviruses: implications for future emerging coronaviruses and other enveloped viruses
Authors: Ijaz M. Khalid , Nims Raymond W. , Zhou Sifang Steve , Whitehead Kelly , Sriniva Vanita , Kapes Tanya , Fanuel Semhar , Epstein Jonathan H. , Daszak Peter , Rubino Joseph R. , McKinney Julie
Published: September 2020

Mitigating the risk of acquiring SARS-CoV-2 or other coronaviruses requires awareness of the survival of virus on high-touch environmental surfaces (HITES) and skin, and frequent use of targeted microbicides with virucidal efficacy. We evaluated the efficacies of formulated microbicidal actives against alpha- and beta-coronaviruses, including SARS-CoV-2.Infectious coronaviruses, including severe acute respiratory syndrome coronavirus (SARS-CoV), SARS-CoV-2, human coronavirus 229E, bovine coronavirus, murine hepatitis virus-1, and Middle East respiratory syndrome coronavirus, were deposited on prototypic HITES or spiked into liquid matrices along with organic soil loads. Alcohol-, quaternary ammonium compound-, hydrochloric acid-, organic acid-, p-chloro-m-xylenol-, and sodium hypochlorite-based microbicidal formulations were evaluated per global standardized ASTM International and EN methodologies. All evaluated formulated microbicides inactivated SARS-CoV-2 and other coronaviruses in suspension or on prototypic HITES. Virucidal efficacies ( ≥3 to ≥6 log10 reduction) were displayed within 30 s to 5 min. Coronaviruses, like other lipid-enveloped viruses, are susceptible to commonly used microbicides. We confirmed the virucidal efficacy of a variety of commercially available formulated microbicides against SARS-CoV-2 and other coronaviruses. These formulated microbicidal actives should be useful for targeted surface and hand hygiene and disinfection of liquids, as part of infection prevention and control for SARS-CoV-2 and other emerging enveloped viruses.
Features of obtaining cellulose from flax straw by peroxide acetate method of cooking
Authors: Арсеньева Д.Ю. , Казаков Я.В. , Окулова Е.О.
Published: September 2020

Рассмотрены свойства целлюлозы, полученной из костры льна – отходов льняного производства пероксидно-ацетатным методом. Изучено влияние концентрации основного реагента на результаты варки. Костру льна с содержанием целлюлозы 38,5%, лигнина 15%, зольностью 4,1% варили в лабораторных условиях при гидромодуле 7,5 : 1, 6,25 : 1, 5,0 : 1. Для варки использовали препарат надуксусной кислоты (НУК) с концентрацией 15%. Условия варки регулировали изменением общего объема варочного раствора соотношением НУК : вода 1 : 0 и 2 : 1. В полученных образцах определены химические, структурно-морфологические и гигроскопические свойства по стандартным методикам. Установлено, что использование пероксидно- ацетатного способа варки целлюлозы из костры льна позволяет в одну ступень получить полуфабрикат с выходом 52%, белизной до 78%, зольностью 0,6% и числом Каппа на уровне 2–3 единиц. Разбавление варочного раствора в соотношении НУК : вода 2 : 1 приводит к получению продукта с пониженным выходом (34%), белизной (75%) и повышенной зольностью (1,5%). Снижение гидромодуля до 6,25 : 1 позволяет снизить расход НУК на варку на 44% и способствует улучшению качественных показателей льняной целлюлозы – уменьшению содержания лигнина, снижению зольности до 0,8%, сохранению средней длины волокна и увеличению водоудерживающей способности.

The paper discusses the properties of cellulose obtained from flax fires – waste flax production, by using peroxide-acetate method. The influence of the concentration of the main reagent on the results of cooking was studied. Flax fire with a cellulose content of 38.5%, lignin content 15%, ash content of 4.1% was cooked under laboratory conditions at a liquor ratio of 7.5 : 1, 6.25 : 1, 5.0 : 1. The peracetic acid (NAA) with a concentration of 15% was used for cooking. Cooking conditions were regulated by changing the total volume of the cooking solution by the ratio of NAA : water 1 : 0 and 2 : 1. In the obtained samples, chemical, structural-morphological and hygroscopic properties were determined by standard methods. It has been established that the use of the peroxide-acetate pulping method from flax fires makes it possible to obtain a semi- finished product in one step with a yield of 52%, whiteness up to 78%, ash content of 0.6% and a kappa number of 2-3 units. Dilution of the cooking solution in the ratio of NAA : water 2 : 1 results in a product with a reduced yield of 34%, a whiteness of 75% and an increased ash content of 1.5%. Reducing the liquor module to 6.25 : 1 reduces the consumption of NAA for cooking by 44% and contributes to improving the quality indicators of flax pulp – reducing the lignin content, reducing ash content to 0.8%, maintaining the average fiber length and increasing water-holding capacity.
Optimization of the organization of the forest road construction
Authors: Мохамед А.Х. , Тюрин Н.А.
Published: September 2020

Основной целью работы является оптимизация использования машин для земляных работ в строительстве лесных дорог по критерию минимума приведенных расходов, путем оптимального распределения комплектов машин по объектам строительства при условии возможности аренды какихлибо дополнительных машин. Создана экономикоматематическая модель расчета эффективной структуры парка машин с точки зрения системы производственной эксплуатации, которая складывается из эффектов всех специализированных комплектов машин и эффекта от передачи машин парка в аренду. Учет возможности передачи или получения техники в аренду позволяет улучшить техникоэкономические показатели эксплуатации парка машин. Результаты работы могут быть востребованы лесозаготовительными и дорожностроительными предприятиями в период проектирования производства земляных работ, обновления машинных парков, а также при выборе наилучшего варианта использования имеющегося парка, прогнозирования продолжительности и стоимости ведения механизированных работ.

The main purpose of this work is to optimize the earthmoving machinery utilization in the forest road construction, by minimize the operating cost. That goal may achieve by the optimal distribution of the machine combination in the construction sites, with the ability of renting additional machines. Economical mathematical model has been developed for calculating the effective structure of the machine group to achieve the required productivity. The possibility of hire and rent machines allows the manager to improve the technical economic decision for the machines operation. By using the developed model it can gives good results to having better decisions for planning and designing the earth working operations in the road construction companies, renovation of the machine parks, as well as the choosing the best option for using the existing machine combination, predicting the duration and predicting the cost of the whole work.
Using remote sensing for monitoring of reforestation in boreal forest
Authors: Карпов А.А. , Богданов А.П. , Пирцхалава-Карпова Н.Р. , Демина Н.А.
Published: September 2020

Оценка лесовосстановления по спутниковым снимкам и создание системы мониторинга является важной задачей на сегодняшний день. Российские и зарубежные ученые проводят исследования в этом направлении, но анализ лесовосстановления является сложной темой исследования в отличие от выявления вырубок и гарей по спутниковым снимкам. Лесовосстановление также является сложным, многофакторным процессом, зависящим от множества факторов. Данная статья описывает мировой опыт создания различных методик для мониторингалесовосстановления, используя различные подходы анализа данных и сенсоры, установленные на спутниках. В рамках статьи рассмотрено применение оптических, радарных снимков и данных, полученных с лидарных сенсоров. Это попытка структурировать накопленный опыт в данной сфере и сгруппировать разработанные методики для анализа их преимуществ и недостатков. Тип сенсора определяет длительность периода мониторинга. Радарные данные позволяют определять процесс лесовосстановления до 60 лет в отличие от оптических сенсоров, которые имеют значительно меньший период оценки лесовосстановления. Применение радарных данных может быть ограничено стоимостью работы и сложностью обработки радарных данных, поэтому использование тех или иных методик может иметь финансовые ограничения. Данный обзор показывает все основные методы оценки лесовосстановления.

Assessment of reforestation using satellite images and creation of a monitoring system is an important task today. Russian and foreign scientists are conducting research in this direction, but the analysis of reforestation is a complex topic of research in contrast to the detection of cuttings and burned areas by satellite images. The process of reforestation is a complex, multi-factor process depending on many factors. This article describes the world experience of creating different methods for monitoring forest regeneration and uses different approaches to data analysis and sensors installed on satellites. In the framework of article was considered using of optical, radar images and data obtained from lidar sensors. This is an attempt to structure the accumulated experience in this field and group the developed methods to analyze their advantages and disadvantages. Data from different sensors have different monitoring period. Radar data allow determining the process of reforestation up to 60 years in contrast to optical sensors, which have a much shorter period of reforestation assessment. The using of radar data were limited by the cost of operation and complexity of radar data processing and using of certain techniques may have financial limitations. This review showed all the main methods of assessment of reforestation.
Практический метод исследования водородных связей в бумаге
Authors: Shabiev R.O. , Smolin A.S. , Ivanov-Omskii V. I. , Zvonaryova T.K. , Trapeznikova I.N.
Published: September 2020

The knowledge of principles of hydrogen bonding build-up during stock preparation is useful additional information for better control of refined pulp. Nevertheless, there is no wide accepted, accurate and quick method to investigate these interactions regarding pulp refining. The principal objective of this paper was to describe the rapid method of non-destructive analysis of handsheets by FTIR spectroscopy in the region of absorption frequencies of hydroxyl groups and interpretation of the results obtained. The proposed method is based on deconvolution of handsheets FTIR spectrum into four Gaussian bands. The calculated energy of hydrogen bonding was ranged from 2 to 25 kJ/mol. The bond energy was classified on weak, medium and strong ones corresponding to inter- or interfibre subtypes. The minimum requirement for handsheets being analyzed by proposed method was found as infrared transmission ranged between 0.10 and 0.50 in the range of 37003000 cm1. Although during investigation of the handsheets, normally more than 95 of incident light radiation was scattered and reflected, it did not restrict in obtaining clear and structured absorption spectra. In the case when the sheet transmission was 0.50 or 0.1 the share of strong hydrogen bonds was different, but it demonstrates the difference in the paper structure. This method might be recommended for pulp and paper stock quality mill control.

Знание принципов образования водородной связи при подготовке бумажной массы является полезной информацией для лучшего управления размолотой целлюлозы. Тем не менее не существует широко признанного, точного и быстрого метода для изучения этих взаимодействий по отношению к размолу целлюлозы. Основная цель представленного исследования заключается в описании быстрого неразрушающего метода анализа лабораторных образцов посредством ИК-Фурье-спектроскопии в области поглощения водородных групп и интерпретации полученных результатов. Предложенный метод основывается на деконволюции ИК-Фурье-спектров в четыре Гауссовы контура. Расчетная энергия водородных связей получилась в диапазоне от 2 до 25 кДж/моль. Энергия связи была классифицирована на слабые, средние и сильные связи, что соответствует меж- и внутрифибриллярным подвидам связи. Было определено, что минимальное требование к анализируемым лабораторным образцам для данного метода, это ИК-пропускание в диапазоне 37003000 cm1 от 0,1 до 0,5. Хотя во время анализа лабораторных образцов обычно более 95 подающего света рассеивается или отражается, это не ограничило в получении чистого и структурированного спектра поглощения. В случае, когда пропускание составило более 0,5 или менее 0,1 было обнаружено разное количество сильной связи, что показывает разницу в структуре бумаги. Предложенный метод может быть рекомендован для производственного контроля целлюлозы и массоподготовительных процессов при производстве бумаги.
Yields, Fruit Quality, and Water Use in a Jalapeno Pepper and Tomatoes under Open Field and High-tunnel Production Systems in the Texas High Plains
Authors: Rho Hyungmin , Colaizzi Paul , Gray James , Paetzold Li , Xue Qingwu , Patil Bhimanagouda , Rush Charles
Published: September 2020

The Texas High Plains has a semi-arid, hot, windy climate that features high evapotranspiration (ET) demands for crop production. Irrigation is essential for vegetable production in the region, but it is constrained by depleting groundwater from the Ogallala Aquifer. High-tunnel (HT) production systems may reduce irrigation water demand and protect crops from severe weather events (e.g., hail, high wind, freezing) common to the region. The objective of this study was to compare yields, fruit quality, crop water use, and crop water use efficiency (WUE) of jalapeno pepper (Capsicum annuum L.) and tomatoes (Solanum lycopersicum L.) in HT and open field (OF) production systems. We hypothesized that the protection from dry and high winds by HT would improve yields and quality of fruits and reduce water use of peppers and tomatoes. During the 2018 and 2019 growing seasons, peppers and tomatoes were transplanted on two HT plots and two identical OF plots. Plastic mulch was used in combination with a surface drip irrigation system. Micrometeorological variables (incoming solar irradiance, air temperature, relative humidity, and wind speed) and soil physical variables (soil temperature and volumetric soil water) were measured. Air temperatures were significantly higher during the daytime, and wind speed and light intensity were significantly lower in HT compared with OF. Despite the lower light intensity, yields were greater in HT compared with OF. The fruits grown in HT did not show significant differences in chemical quality attributes, such as ascorbic acid and lycopene contents, compared with those grown in OF. Because of protection from dry, high winds, plants in HT required less total water over the growing seasons compared with OF, resulting in increased WUE. The 2018 and 2019 data showed that HT production is advantageous as compared to conventional OF production in terms of increased WUE and severe weather risk mitigation for high-value vegetable production in the Texas High Plains.
Longer Photoperiods with the Same Daily Light Integral Improve Growth of Rudbeckia Seedlings in a Greenhouse
Authors: Elkins Claudia , van Iersel Marc W.
Published: September 2020

Supplemental light can increase growth and accelerate production of greenhouse crops, but it can be expensive if not provided in a way that promotes efficient use of the light. Dimmable light-emitting diode (LED) fixtures have the potential to reduce lighting costs because the output can be precisely controlled to meet crop needs. Because light is used more efficiently to drive photosynthesis at lower photosynthetic photon flux densities (PPFDs), we hypothesized that providing Rudbeckia fulgida var. sullivantii ‘Goldsturm’ seedlings with the same daily light integral (DLI), spread out over a longer photoperiod and at lower PPFDs, should improve growth. A DLI of 12 mol·m−2·d−1 was provided in a greenhouse over 12, 15, 18, or 21-hour photoperiods from a combination of sunlight and supplemental light from LEDs, using adaptive lighting control. Plants grown without supplemental light had an ≈12-hour photoperiod and received an average DLI of 5 mol·m−2·d−1, ≈58% less light than the four lighting treatments. Lengthening the photoperiod from 12 to 21 hours increased shoot dry mass (30%), root dry mass (24%), plant height (14%), leaf area (16%), and chlorophyll content index (48%), and decreased specific leaf area (26%). There was no significant effect of photoperiod on root mass fraction or compactness. Growth parameters of plants without supplemental light were 26% to 90% smaller compared with those in the 12-hour photoperiod treatment. Treatment effects on canopy size, seen as early as 2 weeks into the study, were correlated with final shoot dry mass. Longer photoperiods did not induce a shade-avoidance response, based on specific leaf area and compactness data. The 24% increase in root dry mass for the plants in the 21-hour photoperiod suggests that cropping cycles can be shortened by 1 to 2 weeks compared with the 12-hour photoperiod. This could result in more crop turns per year and increased profits. In addition, fewer lights would be needed for adequate growth, reducing the capital cost of the lighting system.
Nondestructive Determination of Fruit Surface Area Using Archimedean Buoyancy
Authors: Hurtado Grecia , Lüdeke Patrick , Knoche Moritz
Published: September 2020

Estimates of fruit surface area are often required in physiological and technological studies. The objective was to establish a procedure to accurately quantify the fruit surface area based on Archimedean buoyancy measurements. The setup comprised a fixed, linear stepper motor mounted with its spindle vertical and aligned directly above the pan of an electronic balance. A fruit was clamped to the motor spindle and a beaker of water rested on the balance pan. When the motor was activated, the fruit was progressively immersed, stepwise, in the water. Each vertical displacement step increased the buoyant upthrust on the fruit, which was opposed by a corresponding increase in the downthrust on the balance. Pairs of the step displacement length (mm) and corresponding buoyancy increment (g) values were recorded in an MS Excel (Microsoft, Redmond, WA) spreadsheet using Arduino components. Each displacement step immersed another “virtual slice” of the fruit in the water. From each pair of known displacement–buoyancy measurements, the volume (mL) of that slice could be calculated with high precision based on the known density of the liquid (g·mL−1). With the fruit orientated so that its morphological “long” axis was vertical, for most fruitcrop species, the slice can be assumed to have a circular cross-section. Hence, the slice can be analyzed geometrically as a truncated cone of known height (mm) and known volume (mL). Therefore, the surface area of its outer face is calculable. The surface area of the whole fruit was calculated as the cumulative total of the surface areas of all steps (virtual slices). The procedure was evaluated and calibrated using stainless-steel spheres in place of the fruit. However, the measured surface area was slightly greater than that calculated for a sphere. The calculated and measured areas did not differ by more than 1.7%. The surface area determinations were highly reproducible (cv = 0.95%). The magnitude of the displacement steps affected the variability of the surface area measurements. Increasing the step displacements decreased the measurement variability, but there were no significant effects on the surface area measurements of the surface tension of the liquid or of the wettability of the surface of the fruit or the stainless-steel subject. Using stainless-steel spheres (diameter, 5–60 mm) or rubber truncated cones (mean diameter, 8–45 mm) revealed an excellent agreement between the measured and calculated surface areas. Using tomatoes, grapes, blueberries, and strawberries, the measured surface areas were in excellent agreement with those calculated from the fruit dimensions and appropriate geometrical assumptions. The results demonstrate that the surface areas of fruit with approximately circular cross-sections normal to their morphological axes can be determined with high accuracy and reproducibility using Archimedean buoyancy.
O CONCEITO DE ENSINO MÉDIO INTEGRADO: UM CONFRONTO ENTRE DOCENTES LICENCIADOS E DOCENTES BACHARÉIS
Authors: Araújo Melo Sthéfany , Marques Welisson
Published: September 2020

Resumo: O Ensino Médio Integrado (EMI) ao curso técnico convive com múltiplas interpretações entre os próprios profissionais da educação. Este artigo é resultado de uma pesquisa que objetivou investigar, por meio de entrevistas individuais com 16 docentes efetivos, a origem dessa dessemelhança do conceito de integração de ensino, na tentativa de descobrir se o tipo de graduação acadêmica (licenciatura ou bacharelado) dos docentes interfere na construção desse conceito. A base teórica deste artigo se apoiou em Ramos (2008), Ciavatta (2005) e Araújo e Frigotto (2015). Como resultado da pesquisa, identificamos que todos os 16 docentes interpretam, por um viés funcional, o conceito de integração de ensino da mesma maneira, ou seja, implementar a educação profissional harmoniosamente às disciplinas propedêuticas, tais como matemática, língua portuguesa, geografia, biologia e etc., de forma que o conhecimento para a vida e para o trabalho sejam construídos de forma indivisível. Por outro lado, em um viés holístico, apenas cinco docentes acreditam que a integração deva ser fundamental não somente no momento das escolhas metodológicas para a exposição dos conteúdos, mas também nas etapas de planejamento e avaliação, por exemplo, entendendo o curso como integrado por completo.

Palavras-chave: Ensino Médio Integrado. Formação integrada. Licenciatura. Bacharelado. Concepção.
CURRÍCULO INTEGRADO E FORMAÇÃO PROFISSIONAL NO PROEJA: CONCEPÇÕES ACERCA DO ENSINO POR ÁREA DO CONHECIMENTO
Authors: Da Silva Franciele Fernandes , Marques Marília Wortmann , Keske Cátia
Published: September 2020

Este trabalho discute questões que permeiam a oferta de Ensino Médio integrado ao PROEJA, no IFFar. Em perspectiva qualitativa, a pesquisa foi desenvolvida em meio à realização de um Estágio da Licenciatura em Ciências Biológicas, com uma turma do Curso Técnico em Edificações Integrado PROEJA.  Objetivando problematizar a integração entre Educação Profissional e Ensino Médio e a organização curricular por áreas do conhecimento, o estudo contou com uma entrevista semiestruturada com alunos do curso, para produção de dados, analisados sob as premissas da Análise Textual Discursiva (ATD). Os subsídios teóricos se constituem de documentos legais e institucionais sobre a temática e autores que trabalham com a articulação entre educação e trabalho, formação de professores e processos de ensino e aprendizagem de jovens e adultos. Por meio de categorização, conforme a ATD, foram identificadas concepções de estudantes acerca do processo de ensino e aprendizagem de jovens e adultos e a relação dos conhecimentos da área básica com a técnica. Nesse contexto, a premissa elaborada é que jovens e adultos estudantes do PROEJA reconhecem a articulação entre a formação acadêmica e o mundo do trabalho, indicando que a organização curricular do seu curso tem embasamento nas concepções de currículo integrado.
FORMAÇÃO E CONTEXTOS DE ATUAÇÃO DE PROFESSORES NA EDUCAÇÃO DE JOVENS E ADULTOS: OS DESAFIOS DA DOCÊNCIA
Authors: De Albuquerque Andréa Souza , Gonçalves Tadeu Oliver , Rocha Jaqueline Castro Baía
Published: September 2020

O objetivo do estudo é investigar a formação e o contexto de atuação pedagógica de professores na educação de jovens e adultos, assim como conhecer a realidade deste ensino na perspectiva dos professores tanto em relação ao papel da escola, quanto aos desafios e possibilidades dos que atuam nessa modalidade de ensino. Como perguntas centrais definimos: Qual o contexto de atuação do docente nas escolas que ofertam essas turmas? Quais as principais dificuldades e desafios que os professores enfrentam em relação à escola durante sua atuação nas turmas com jovens e adultos? A metodologia da pesquisa teve abordagem qualitativa e, para obtenção de dados, foi realizada uma entrevista semiestruturada com três docentes que atuam em uma escola municipal da Rede de ensino de Belém/PA, no noturno, que ofertam a modalidade educativa voltada para atender jovens e adultos. Os resultados apontam que os professores sentem-se desvalorizados e desmotivados a buscar novas metodologias capazes de modificar as propostas pedagógicas tradicionais, e sentem a falta de apoio da gestão das escolas e da Secretaria Municipal de Educação; falta de recursos pedagógicos necessários e de uma formação inicial e continuada para atender às especificidades deste ensino. Diante desta realidade, é urgente que as escolas e os professores repensem e ressignifiquem suas práticas de gestão e metodologias quanto às singularidades dos educandos, os quais ainda têm sido considerados como sujeitos “invisíveis” em relação ao seu direito de acesso a uma educação pública de qualidade em nosso país.
CURRÍCULO INTEGRADO NA MODALIDADE EJA: A PEDAGOGIA DE PROJETOS NO PROEJA
Authors: Alves Telma
Published: September 2020

Este trabalho apresenta o recorte do material empírico coletado numa investigação, realizada de 2014 a 2018, cujos sujeitos são professores das áreas de Ciência e Matemática e de Informática do curso técnico médio integrado de Manutenção e Suporte em Informática, na modalidade de Educação de Jovens e Adultos. O texto analisa as percepções dos próprios professores a respeito do trabalho docente realizado no curso, destacando, dentre outros aspectos, a materialização do currículo integrado por meio dos denominados Projetos Integradores. Pela abordagem qualitativa, na forma de estudo de caso, foram realizadas entrevistas, inspiradas no método compreensivo, como meio de alcançar a percepção que os sujeitos têm sobre tal concepção. O referencial teórico se apoia em autores da Pedagogia Histórico-Crítica e dos Saberes Docentes cujas ideias se complementam. Dentre os resultados obtidos, destacamos neste texto como os sujeitos percebem a materialização do currículo integrado. Pela análise de conteúdo das entrevistas, identificam-se avanços e possibilidades na fundamentação dos Projetos Integradores, levando em conta o contexto complexo e real.
HISTÓRIA E CONTEXTUALIZAÇÃO NO ENSINO DE ESTEREOQUÍMICA: UMA PROPOSTA DE ABORDAGEM PARA O ENSINO MÉDIO
Authors: Raupp Daniele Trajano , Prochnow Tania Renata , Del Pino José Cláudio
Published: September 2020

Os desafios do ensino de estereoquímica têm sido objeto de estudo há décadas. A resolução de problemas em nível tridimensional é considerada como umas das fontes de dificuldade. Além disso, a falta de motivação para a aprendizagem é uma barreira para o ensino de química. Buscando uma estratégia de ensino e tendo como aporte a Teoria dos Campos Conceituais, a qual pressupõe que um conceito se torna significativo para o sujeito a partir de uma variedade de situações, realizou-se um estudo de caso exploratório com estudantes de Ensino Médio Técnico em Química. O estudo relatado é um recorte de uma pesquisa de doutorado e aborda, exclusivamente, o impacto no nível de compreensão da área, mediante o uso de uma unidade didática, utilizando um enfoque nas questões históricas e contextuais. Utilizando o método misto e análise de conteúdo, constatou-se, por meio de pré e pós-testes, que o uso de unidade didática possibilitou aos estudantes a compreensão de uma variedade de situações, aumentando seu repertório de conhecimento, o que torna o conceito significativo e colabora para a motivação em sala de aula. Essa significação e motivação podem colaborar para o domínio do campo da estereoquímica e para superação das dificuldades exclusivas da área.

Os desafios do ensino de estereoquímica têm sido objeto de estudo há décadas. A resolução de problemas em nível tridimensional é considerada como umas das fontes de dificuldade. Além disso, a falta de motivação para a aprendizagem é uma barreira para o ensino de química. Buscando uma estratégia de ensino e tendo como aporte a Teoria dos Campos Conceituais, a qual pressupõe que um conceito se torna significativo para o sujeito a partir de uma variedade de situações, realizou-se um estudo de caso exploratório com estudantes de Ensino Médio Técnico em Química. O estudo relatado é um recorte de uma pesquisa de doutorado e aborda, exclusivamente, o impacto no nível de compreensão da área, mediante o uso de uma unidade didática, utilizando um enfoque nas questões históricas e contextuais. Utilizando o método misto e análise de conteúdo, constatou-se, por meio de pré e pós-testes, que o uso de unidade didática possibilitou aos estudantes a compreensão de uma variedade de situações, aumentando seu repertório de conhecimento, o que torna o conceito significativo e colabora para a motivação em sala de aula. Essa significação e motivação podem colaborar para o domínio do campo da estereoquímica e para superação das dificuldades exclusivas da área.
Uji Efektifitas Dinding Ruangan Panoramik Instalasi Radiologi RSUD Prof. Dr. MA Hanafiah SM Batusangkar Menggunakan TLD-100
Authors: Dasril Dila Nelvo , Dewilza Nerifa
Published: September 2020

Research on the effectiveness of panoramic room walls has been carried out in the Radiology Installation of Prof. Dr. MA Hanafiah SM Batusangkar. This study aims to determine the effectiveness of the panoramic room walls in absorbing radiation emitted by panoramic aircraft, as well as knowing the safety level of the room around the panoramic inspection room in accordance with the dose limit values of workers and the general public. This type of research is a quantitative research by taking direct measurements. The research was conducted by measuring the radiation dose at six points of the panoramic room wall using a radiation measuring instrument, namely TLD-100. The results showed that the effectiveness of the walls was only able to absorb radiation less than 90%, with the shield category on the walls that was not good enough to withstand radiation. Therefore, it is necessary to renovate the panoramic room walls in accordance with safety standards.
Domestic violence: The day-to-day life of peruvian women experiencing depressive disorders
Authors: Suyo-Vega Josefina Amanda , Meneses-La-Riva Mónica Elisa , Paredes-Díaz Susana Edita , Fernández-Bedoya Víctor Hugo
Published: September 2020

Violence against women in Peru is on the rise, with 138% of femicides recorded by women's emergency centers by 2018. Mental health with depressive disorders is the leading cause of health problems worldwide, according to the World Health Organization. The objective was to determine the prevalence of domestic violence and depressive disorders among women in three departments of Peru. The methodology was applied, with a quantitative approach, of non-experimental design, of a cross-sectional nature. The population consisted of 384 women over 18 years of age, distributed in Lima 250, La Libertad 80, and Amazonas 54, where they reported mistreatment and depressive disorders, information recorded in the Women's Emergency Centres, the police stations, the Vaso de Leche social programs, the canteens and the Office of the Ombudsman for Women, Children, and Adolescents. The data collection technique was a survey, the instruments applied were two questionnaires, one measuring the prevalence of domestic violence (VIF J4), and the Hamilton Scale for depressive disorder, which suggests the following cut-off points: not depressed, mild/minor depression, moderate depression, severe depression, and very severe depression. Among the relevant results, it was found that of the 100% of women who suffer from domestic violence, these are subdivided into physical violence 16%), psychological violence 20%, sexual violence 26%, social violence 16%, patrimonial violence 11% and gender violence 13%. For the depressive disorder, it was found that 100 percent of women who suffer from domestic violence have depressive disorders divided into intermediate insomnia 4%, early insomnia 7%, late insomnia 7%, women who suffer in the development of their activities and work 8%, depressive mood 14%, thoughts about suicide (15/100), psychomotor inhibition 15%, and psychomotor agitation 15% that concluding that domestic violence associated with depressive disorders leads to suicide.
Leuit and prohibition forest: Indigenous knowledge of an Urug community resilience
Authors: Bahagia Bahagia , Mangunjaya Fachrudin Majeri , Wibowo Rimun , Rangkuti Zulkifli , Alwahid Muhammad Azhar
Published: September 2020

The purpose of this research was to investigate the function of leuit and prohibition Forest based on indigenous knowledge of Urug people for combating climate change toward community resilience. The research method used an ethnographic qualitative approach. This method was related to local cultural, ritual, and traditional communities-the data collected through in-depth interviews, observation, and documentation. The selection of sample as informant exert purposive sampling technique. The result is probed meticulously through triangulation technique and triangulation sources. The result shows that traditional storage (Leuit) has a role in confronting climate change and disaster and life perturbance for achieving community resilience. Another finding is Urug people create a prohibition forest. The impact is the wood can rescue from damage. The community can fight climate change, get adequate water, and environment preservation.
PENGEMBANGAN PERMAINAN QUESTION CARD SEBAGAI MEDIA PEMBELAJARAN UNTUK MENINGKATKAN BERPIKIR KRITIS SISWA
Authors: Lailia Nurul
Published: September 2020

Abstrak: Penelitian ini bertujuan untuk menganalisis 1) pengembangan Permainan Question Card sebagai media pembelajaran untuk meningkatkan keterampilan berpikir kritis siswa, 2) efektivitas Permainan Question Card pada sebagai media pembelajaran untuk meningkatkan keterampilan berpikir kritis siswa.Penelitian ini dilakukan di kelas X IPS 1 SMAN 1 Kota Mojokerto dengan 20 siswa sebagai subjek penelitian. Jenis penelitian yang digunakan adalah penelitian pengembangan (research and development) dengan model pengembangan ADDIE yang terdiri dari lima tahap, yaitu Analysis, Design, Development, Implementation, dan Evaluation. Desain ujicoba penelitian ini menggunakan desain Pre-Experimental bentuk One Grup Pretest-Posttest. Jenis data dalam penelitian ini meliputi data kualitatif dan kuantitatif, dengan instrumen pengumpulan data berupa lembar telaah dan lembar validasi. Dari hasil penelitian ini, menunjukkan bahwa presentase yang didapat dari ahli evaluasi adalah 93% dengan kriteria sangat layak dan ahli media 88,86% dengan kriteria sangat layak. Hasil efektivitas Permainan Question Card yang diujicobakan secara terbatas menunjukkan peningkatan keterampilan berpikir kritis peserta didik melalui uji N-gain dengan nilai rata-rata sebesar 0,6 dengan kriteria sedang.Abstract: The purpose of the research is to analyze 1) the development of the Question Card Game as learning media to increase student’s critical thinking, 2) the effectiveness of the Question Card Game as learning media to increase student’s critical thinking. This study is conducted in class X Social 1 of State Senior High School 1 of Mojokerto City with 20 students as subjects research. The type of research is research and development with ADDIE development model that consists of five steps, namely Analysis, Design, Development, Implementation, and Evaluation. The trial design of this research is the Pre-Experimental design One Group Pretest-Posttest type. The type of data in this research is qualitative and quantitative data with data collection instruments in the form of study sheets and validation sheets. They show that the percentage received from the evaluation expert is 93% with the criteria very feasible and media expert is 88,86% with criteria very feasible. The result of the effectiveness of the Question Card Game as learning media showed an increase in student’s critical thinking through the N-gain test with an average value of 0,6 with criteria medium
EFEKTIFITAS MOBILE APP PADA METODE MINDMAP UNTUK MENINGKATKAN HASIL BELAJAR DAN MENGURANGI PENYALAHGUNAAN SMARTPHONE
Authors: Nurseto Tejo , Alwi Ahmad Chafid , Baroroh Kiromim
Published: September 2020

Abstrak: Penelitian ini memiliki tujuan untuk mengetahui efektivitas penggunaan mobile app dalam meningkatkan hasil belajar mahasiswa dan mengurangi penyalahgunaan penggunaan smartphone saat pembelajaran. Penelitian ini merupakan quasi experimental design dengan model non-equivalent group pretest posttest yang diterapkan pada kelas eksperimen dan kelas kontrol. Analisis data dalam penelitian ini menggunakan uji t. Hasil penelitian menunjukkan bahwa penggunaan mobile apps pada metode Mindmap cukup efektif untuk meningkatkan prestasi belajar dan mampu mengurangi kebiasaan mahasiswa dalam penyalahgunaan penggunaan smartphone.Abstract: This study aims to determine the effectiveness of using mobile apps in improving student learning outcomes and reducing abuse of smartphone use during learning. This research is a quasi-experimental design with a non-equivalent group pretest-posttest model applied to the experimental class and the control class. Data analysis in this study using the t-test. The results showed that the use of mobile apps in the Mindmap method was competent enough to improve learning achievement and was able to reduce student habits in the abuse of smartphone use.
The Design of a Randomized Clinical Trial to Evaluate a Pragmatic and Scalable eHealth Intervention for the Management of Gestational Weight Gain in Low-Income Women: Protocol for the SmartMoms in WIC Trial (Preprint)
Authors: Flanagan Emily W , Altazan Abby D , Comardelle Natalie R , Gilmore L Anne , Apolzan John W , St. Romain Jessica , Hardee Julie C , Puyau Renee S , Mayet Christy L , Beyl Robbie A , Barlow S Ariel , Bounds Sarah Surber , Olson Kelsey N , Kennedy Betty M , Hsia Daniel S , Redman Leanne M
Published: September 2020

BACKGROUND

Less than one-third of women gain an appropriate amount of weight during pregnancy, which can influence the long-term health of both the mother and the child. Economically disadvantaged women are the most vulnerable to maternal obesity, excessive weight gain during pregnancy, and poor birth outcomes. Effective and scalable health care strategies to promote healthy weight gain during pregnancy specifically tailored for these women are lacking.

OBJECTIVE

This paper presents the design and protocol of a biphasic, community-based eHealth trial, SmartMoms in WIC, to increase the adherence to healthy gestational weight gain (GWG) recommendations in low-income mothers receiving women, infant, and children (WIC) benefits.

METHODS

Phase 1 of the trial included using feedback from WIC mothers and staff and participants from 2 community peer advisory groups to adapt an existing eHealth gestational weight management intervention to meet the needs of women receiving WIC benefits. The health curriculum, the format of delivery, and incentive strategies were adapted to be culturally relevant and at an appropriate level of health literacy. Phase 2 included a pragmatic randomized controlled trial across the 9 health care regions in Louisiana with the goal of enrolling 432 women. The SmartMoms in WIC intervention is an intensive 24-week behavioral intervention, which includes nutrition education and exercise strategies, and provides the technology to assist with weight management, delivered through a professionally produced website application.

RESULTS

Phase 1 of this trial was completed in July 2019, and recruitment for phase 2 began immediately thereafter. All data are anticipated to be collected by Spring 2023.

CONCLUSIONS

The SmartMoms in WIC curriculum was methodically developed using feedback from community-based peer advisory groups to create a culturally relevant, mobile behavioral intervention for mothers receiving WIC benefits. The randomized clinical trial is underway to test the effectiveness of a sustainable eHealth program on the incidence rates of appropriate GWG. SmartMoms in WIC may be able to offer an innovative, cost-effective, and scalable solution for GWG management in women served by WIC.

CLINICALTRIAL

ClinicalTrials.gov NCT04028843; https://clinicaltrials.gov/ct2/show/NCT04028843

INTERNATIONAL REGISTERED REPORT

DERR1-10.2196/18211
Using a Commercially Available App for the Self-Management of Hypertension: Acceptance and Usability Study in Saudi Arabia (Preprint)
Authors: Alessa Tourkiah , S Hawley Mark , Alsulamy Nouf , de Witte Luc
Published: September 2020

BACKGROUND

The use of smartphone apps to assist in the self-management of hypertension is becoming increasingly common, but few commercially available apps have the potential to be effective along with adequate security and privacy measures in place. In a previous study, we identified 5 apps that are potentially effective and safe, and based on the preferences of doctors and patients, one (Cora Health) was selected as the most suitable app for use in a Saudi context. However, there is currently no evidence of its usability and acceptance among potential users. Indeed, there has been little research into the usability and acceptance of hypertension apps in general, and less research considers this in the Gulf Region.

OBJECTIVE

This study aims to evaluate the acceptance and usability of the selected app in the Saudi context.

METHODS

This study used a mixed methods approach with 2 studies: a usability test involving patients in a controlled setting performing predefined tasks and a real-world usability study where patients used the app for 4 weeks. In the usability test, participants were asked to think aloud while performing the tasks, and an observer recorded the number of tasks they completed. At the end of the real-world pilot study, participants were interviewed, and the mHealth App Usability Questionnaire was completed. Descriptive statistics were used to analyze quantitative data, and thematic analysis was used to analyze qualitative data.

RESULTS

In total, 10 patients completed study 1. The study found that app usability was moderate and that participants needed some familiarization time before they could use the app proficiently. Some usability issues were revealed, related to app accessibility and navigation, and a few tasks remained uncompleted by most people. A total of 20 patients completed study 2, with a mean age of 51.6 (SD 11.7) years. Study 2 found that the app was generally acceptable and easy to use, with some similar usability issues identified. Participants stressed the importance of practice and training to use it more easily and proficiently. Participants had a good engagement level with 48% retention at the end of study 2, with most participants’ engagement being classed as meaningful. The most recorded data were blood pressure, followed by stress and medication, and the most accessed feature was viewing graphs of data trends.

CONCLUSIONS

This study shows that a commercially available app can be usable and acceptable in the self-management of hypertension but also found a considerable number of possibilities for improvement, which needs to be considered in future app development. The results show that there is potential for a commercially available app to be used in large-scale studies of hypertension self-management if suggestions for improvements are addressed.
The Measurements of Tourist Satisfaction Levels on Attractions, Accessibility, and Amenities in Pulesari Tourism Village, Sleman Regency
Authors: Dzulkifli Muhammad
Published: September 2020

This study aimed to determine the level of tourist satisfaction and the performance of attractions, accessibilities, and amenities (3As) in Pulesari Tourism Village (PTV). This study uses both qualitative and quantitative (mixed method). The population in this study was tourists who visited PTV during the period of August to September 2018. A hundred samples were collected using Purposive Sampling method. Data were collected by distributing questionnaires, in-depth interviews, field observations, and documentation. Gradual quantitative-qualitative data analysis is used as a technique to analyse the data. It begins with Likert satisfaction analysis, Importance Performance Analysis, and qualitative descriptive analysis. The results showed that the level of tourist satisfaction was in the satisfied category. Managers need to improve the quality of attraction components and become a priority to meet tourist expectations. Based on this study, the results show that the quality of the 3As component influences the level of satisfaction of visiting tourists. The three components become unity and support each other. A low assessment of one component can be improved by other components that are perceived to have better quality.