bluuebunny/crossref_metadata_2025 huggingface dataset:
Claw Characteristics of Culled Sows from Three Farrow-to-Finish Greek Farms. Part 1: Claw Length Measurements, Lesion Scores and Their Association
Authors: Papadopoulos Georgios A. , Chalvatzi Sofia , Kroustallas Fotios , Skampardonis Vassilis , Cernat Mihaela , Marouda Christina , Psychas Vassilios , Poutahidis Theofilos , Leontides Leonidas , Fortomaris Paschalis
Published: July 2021

The aim of the study was to investigate variations in lengths and lesions in claws of culled sows and to evaluate their association. All four feet of 185 sows from three Greek farrow-to-finish farms (Farm A: 57 sows; Farm B: 64 sows; Farm C: 64 sows) were examined for lesions and their lengths were measured. All claw lengths were lower in sows of farm C compared to those from sows of B and A. Claw lengths in sows of farm B were lower compared to those from A for all lateral toes of front feet and for all medial and four out of three lateral toes of rear feet. Sum of length measurements of the main toes of the front feet (SLF) associated with lesions on sole, white line and heel of front feet, while sum of length measurements of the main toes of the rear feet (SLR) associated with all lesions of the rear feet. The lengths of the main toes were correlated with the length of dew claws on front and rear feet. Overall, sows’ claw lesion severity and claw lengths may differ between farms and frequency of lesions is higher in longer claws.
Experimental Validation of Finite Element Models for Reinforced Concrete Beams with Discontinuities That Form Dowel-Type Joints
Authors: Filippoupolitis Marios , Hopkins Carl
Published: July 2021

Earthquakes have the highest rate of mortality among the natural disasters and regularly lead to collapsed structures with people trapped inside them. When a reinforced concrete building collapses due to an earthquake, many of the concrete elements (i.e., beams and columns) are damaged and there are large sections where the concrete is missing and the steel reinforcement is exposed (i.e., concrete discontinuities). The prediction of vibration transmission in collapsed and severely damaged reinforced-concrete buildings could help decisions when trying to detect trapped survivors; hence there is need for experimentally validated finite element models of damaged concrete elements. This paper investigates the dynamic behaviour of damaged reinforced concrete beams using Experimental Modal Analysis (EMA) and Finite Element Methods (FEM). FEM models are assessed using two beams with one or more concrete discontinuities that form dowel-type joints. These models used either beam or spring elements for the exposed steel bars and were experimentally validated against EMA in terms of eigenfrequencies and mode shapes. Improved agreement was achieved when using springs instead of beam elements in the FEM model. The comparison of mode shapes used the Partial Modal Vector Ratio (PMVR) as a supplement to the Modal Assurance Criterion (MAC) to confirm that spring elements provide a more accurate representation of the response on all concrete parts of the beams.
Use of Plasma Rich in Growth Factors and ReGeneraTing Agent Matrix for the Treatment of Corneal Diseases
Authors: Sánchez-Ávila Ronald M. , Uribe-Badillo Edmar , Fernández-Vega González Carlos , Muruzabal Francisco , de la Sen-Corcuera Borja , Baamonde Begoña , Quirós Luis M. , Anitua Eduardo , Merayo-Lloves Jesús
Published: July 2021

This study aimed to investigate the use of Plasma Rich in Growth Factors (PRGF) associated with tissue ReGeneraTing Agent (RGTA) drops for the treatment of noninfectious corneal ulcers. RGTA treatment was applied (one drop every two days); however, if ulcer closure was not achieved, PRGF eye drops treatment was added (four times/day). The time taken to reach the ulcer closure, the Best Corrected Visual Acuity (BCVA), intraocular pressure (IOP), Visual Analog Scale (VAS, in terms of frequency and severity of symptoms), and Ocular Surface Disease Index (OSDI) were evaluated. Seventy-four patients (79 eyes) were included, and the mean age was 56.8 ± 17.3 years. The neurotrophic corneal ulcer was the most frequent disorder (n = 27, 34.2%), mainly for herpes virus (n = 15, 19.0%). The time of PRGF eye drops treatment associated with the RGTA matrix was 4.2 ± 2.2 (1.5–9.0) months, and the follow-up period was 44.9 ± 31.5 months. The ulcer closure was achieved in 76 eyes (96.2%). BCVA, VAS and OSDI improved from the baseline (p < 0.001), and IOP remained unchanged (p = 0.665). RGTA and PRGF in noninfectious ulcers were effective and could be a therapeutic alternative for this type of corneal disease.
Water Data Explorer: An Open-Source Web Application and Python Library for Water Resources Data Discovery
Authors: Bustamante Giovanni Romero , Nelson Everett James , Ames Daniel P. , Williams Gustavious P. , Jones Norman L. , Boldrini Enrico , Chernov Igor , Sanchez Lozano Jorge Luis
Published: July 2021

We present the design and development of an open-source web application called Water Data Explorer (WDE), designed to retrieve water resources observation and model data from data catalogs that follow the WaterOneFlow and WaterML Service-Oriented Architecture standards. WDE is a fully customizable web application built using the Tethys Platform development environment. As it is open source, it can be deployed on the web servers of international government agencies, non-governmental organizations, research teams, and others. Water Data Explorer provides uniform access to international data catalogs, such as the Consortium of Universities for the Advancement of Hydrologic Science (CUAHSI) Hydrologic Information System (HIS) and the World Meteorological Organization (WMO) Hydrological Observing System (WHOS), as well as to local data catalogs that support the WaterOneFlow and WaterML standards. WDE supports data discovery, visualization, downloading, and basic data interpolation. It can be customized for different regions by modifying the user interface (i.e., localization), as well as by including pre-defined data catalogs and data sources. Access to WDE functionality is provided by a new open-source Python package called “Pywaterml” which provides programmable access to WDE methods to discover, visualize, download, and interpolate data. We present two case studies that access the CUAHSI HIS and WHOS catalogs and demonstrate regional customization, data discovery from WaterOneFlow web services, data visualization of time series observations, and data downloading.
Using Cellular Automata Approach to Optimize the Hydropower Reservoir Operation of Folsom Dam
Authors: Goharian Erfan , Azizipour Mohammad , Sandoval-Solis Samuel , Fogg Graham
Published: July 2021

While hydropower in California is one the main sources of renewable energy, population growth has continuously increased demand for energy. In addition, recent droughts reduced the amount of available water behind the hydropower dams to provide the water head needed to run the turbines in hydropower plants. A more sustainable alternative, instead of developing new infrastructure, is to enhance the daily operation of reservoirs to support hydropower generation. This study suggests a new optimal operation policy for Folsom Reservoir in California and hydropower plants, which maximizes hydropower generation and reduces flood risk. This study demonstrates the application of the cellular automata (CeA) approach to optimize the daily hydropower operation of Folsom Reservoir. The reservoir operation is a nonlinear problem, where the hydropower generation and elevation-area-storage functions are the main nonlinearity to accurately represent the daily operation of the system. Moreover, the performance of the CeA approach under two extreme climate conditions, wet and dry, was evaluated and compared to the operation during normal conditions. Results showed that the CeA approach provides more efficient solutions in comparison to the commonly used evolutionary optimization algorithms. For the size of the non-linear optimization problem designed in this study, CeA outperformed genetic algorithm for finding optimal solutions for different climate conditions. Results of CeA showed that although the annual average inflow to the reservoir during the dry period was about 30% less than the normal condition, CeA offered about a 20% reduction in average hydropower generation. The new operation policy offered by CeA can partly compensate for the loss of the snowpack in California’s Sierra Nevada under a warming climate. The approach and its outcomes support an informed decision-making process and provide practical reservoir operational guideline to remediate the adverse effects of hydroclimatic changes in the future.
Burrow Densities of Primary Burrowing Crayfishes in Relation to Prescribed Fire and Mechanical Vegetation Treatments
Authors: Adams Susan B. , Hereford Scott G. , Hyseni Chaz
Published: July 2021

Fire suppression and other factors have drastically reduced wet prairie and pine savanna ecosystems on the Coastal Plain of the southeastern United States. Restoration of these open-canopy environments often targets one or several charismatic species, and semi-aquatic species such as burrowing crayfishes are often overlooked in these essentially terrestrial environments. We examined the relationship between primary burrowing crayfishes and three vegetation treatments implemented over at least the past two decades in the Mississippi Sandhill Crane National Wildlife Refuge. Vegetation in the 12 study sites had been frequently burned, frequently mechanically treated, or infrequently managed. Creaserinus spp., primarily C. oryktes, dominated the crayfish assemblage in every site. We counted crayfish burrow openings and coarsely categorized vegetation characteristics in 90, 0.56-m2 quadrats evenly distributed among six transects per site. The number of active burrow openings was negatively, exponentially related to both the percent cover of woody vegetation and the maximum height of woody vegetation in quadrats, and to the number of trees taller than 1.2 m per transect, indicating that woody plant encroachment was detrimental to the crayfishes. Results were consistent with several other studies from the eastern US, indicating that some primary burrowing crayfishes are habitat specialists adapted to open-canopy ecosystems.
Obituary in Remembrance of Tony Allan
Authors: Gerbens-Leenes Winnie , Berger Markus
Published: July 2021

It is with great sadness that we received the news that Tony Allan has passed away on the 15 April 2021 [...]
Anomaly Detection Using a Sliding Window Technique and Data Imputation with Machine Learning for Hydrological Time Series
Authors: Kulanuwat Lattawit , Chantrapornchai Chantana , Maleewong Montri , Wongchaisuwat Papis , Wimala Supaluk , Sarinnapakorn Kanoksri , Boonya-aroonnet Surajate
Published: July 2021

Water level data obtained from telemetry stations typically contains large number of outliers. Anomaly detection and a data imputation are necessary steps in a data monitoring system. Anomaly data can be detected if its values lie outside of a normal pattern distribution. We developed a median-based statistical outlier detection approach using a sliding window technique. In order to fill anomalies, various interpolation techniques were considered. Our proposed framework exhibited promising results after evaluating with F1-score and root mean square error (RMSE) based on our artificially induced data points. The present system can also be easily applied to various patterns of hydrological time series with diverse choices of internal methods and fine-tuned parameters. Specifically, the Spline interpolation method yielded a superior performance on non-cyclical data while the long short-term memory (LSTM) outperformed other interpolation methods on a distinct tidal data pattern.
Methane Production and Oxidation in Mangrove Soils Assessed by Stable Isotope Mass Balances
Authors: Sánchez-Carrillo Salvador , Garatuza-Payan Jaime , Sánchez-Andrés Raquel , Cervantes Francisco J. , Bartolomé María Carmen , Merino-Ibarra Martín , Thalasso Frederic
Published: July 2021

Considerable variability in methane production and emissions has been reported in mangroves, explained by methane inhibition and oxidation. In this study, soil pore waters were collected from mangrove forests located in the Gulf of California (Mexico) exposed to shrimp farm disturbance. The δ13C of dissolved inorganic carbon (DIC) and CH4 were analyzed along with the δ13C of the soil organic matter to assess the proportion of CO2 derived from methanogenesis, its main pathway, and the fraction of methane oxidized. We performed slurry incubation experiments to fit the isotope–mass balance approach. Very low stoichiometric ratios of CH4/CO2 were measured in pore waters, but isotope mass balances revealed that 30–70% of the total CO2 measured was produced by methanogenesis. Mangrove soils receiving effluent discharges shifted the main methanogenesis pathway to CO2 reduction because of an increase in refractory organic matter. Isotope–mass balances of incubations indicated that methane was mainly oxidized by anaerobic oxidation of methane (AOM) coupled to sulfate reduction, and the increase in recalcitrant organic matter should fuel AOM as humus serves as a terminal electron acceptor. Since methanogenesis in mangrove soils is strongly controlled by the oxygen supply provided by mangrove roots, conservation of the forest plays a crucial role in mitigating greenhouse gas emissions.
3D Numerical Simulation of Gravity-Driven Motion of Fine-Grained Sediment Deposits in Large Reservoirs
Authors: Jia Dongdong , Zhou Jianyin , Shao Xuejun , Zhang Xingnong
Published: July 2021

Deposits in dam areas of large reservoirs, which are commonly composed of fine-grained sediment, are important for reservoir operation. Since the impoundment of the Three Gorges Reservoir (TGR), the sedimentation pattern in the dam area has been unexpected. An integrated dynamic model for fine-grained sediment, which consists of both sediment transport with water flow and gravity-driven fluid mud at the bottom, was proposed. The incipient motion driven by gravity in the form of fluid mud was determined by the critical slope. Shallow flow equations were simplified to simulate the gravity-driven mass transport. The gravity-driven flow model was combined with a 3D Reynolds-averaged water flow and sediment transport model. Solution routines were developed for both models, which were then used to simulate the integral movement of the fine-grained sediment. The simulated sedimentation pattern agreed well with observations in the dam area of the TGR. Most of the deposits were found at the bottom of the main channel, whereas only a few deposits remained on the bank slopes. Due to the gravity-driven flow of fluid mud, the deposits that gathered in the deep channel formed a nearly horizontal surface. By considering the gravity-driven flow, the averaged error of deposition thickness along the thalweg decreased from −13.9 to 2.2 m. This study improved our understanding of the mechanisms of fine-grained sediment transport in large reservoirs and can be used to optimize dam operations.
Is it possible to embrace the immense?..
Authors: Korneeva L. N.
Published: July 2021

“Russian literature as a system of local texts”, a landmark work for modern humanitarian knowledge by A.P. Liusyi, which methodologically opens up an original scientific tradition of integral development of Russian culture, is purposefully considered in the article. The author's attention is focused on the perception of the cognitive effect of this work, presented by A.P. Liusyi as a textbook for those researchers, who are included in the above-mentioned scientific direction.
Efficient Market Hypothesis and Fractal Market Hypothesis: evidence from Russian stock exchange
Authors: Lukasevich I.
Published: July 2021

This paper presents the results of the study of the fulfillment of the key conditions and prerequisites of the hypotheses of the efficiency and fractality of price behavior in financial markets for the period 1997–2021. Its relevance is due to the high volatility of the Russian stock market and its imperfections, which lead to significant price deviations.

On the example of the analysis of the dynamics of the MOEX stock index, the method of testing the dynamics of prices on large arrays of real data with the use of statistical data processing methods and modern information technologies is demonstrated.

The article concludes that the nature of the Russian market as a whole has a fractal character. At the same time, the assumptions underlying the hypothesis of information efficiency of the market are not fulfilled.
FENOMENA SILENT READER DALAM GRUP WHATSAPP BARISTA KOPI KENANGAN KARAWANG
Authors: Dewi Ghina Kartika , Ramdhani Muhamad , Arindawati Weni A
Published: July 2021

Penggunaan Whatsapp di kehidupan sehari-sehari sebagai salah satu manusia modern berkomunikasi tanpa terbatas ruang dan waktu. Whatsapp menawarkan kemampuan mengirim pesan dan mebuat grup obrolan whatsapp bermanfaat untuk menyebarkan informasi secara praktis masifnya penggunaan fitur grup obrolan ini bisa dibentuk berdasarkan kesamaan profesi, keluarga, atau atas dasar pertemanan. Didalam grup obrolan Whatsapp terdapat admin yang dapat mengundang dan mengeluarkan anggota dalam grup obrolan whatsapp. Dan terdapat anggota grup obrolan Whatsapp yang akif yang selalu memberikan opini atau menyebarkan informasi, selain itu terdapat anggota grup obrolan whatsapp yang pasif disebut silent reader. Silent reader ini tidak memberikan respon. Sehingga seorang komunikator tidak mendapatkan umpan balik terhadap informasi yang di sebarkan dalam grup obrolan Whatsapp. Penelitian ini bertujuan untuk mengetahui bagaimana seseorang dalam menggunakan fitur grup obrolan aplikasi Whatsapp dapat berperan menjadi seorang silent reader, penelitian ini menggunakan metode deskriptif kualitatif, dengan teknik pengumpulan data yaitu wawancara dan observasi isi obrolan grup Whatsapp, wawancara kepada 5 informan yang berada dalam grup obrolan Whatsapp Barista Kopi Kenangan Karawang cabang Yogya. Hasil penelitian ini menunjukan bahwwa selektivitas, keterlibatan dan kebutuhan seseorang dapat berperan sebagai seorang silent reader dalam grup obrolan whatsapp.  

 

Kata Kunci: Obtolan Grup Whatsapp, Feedback, Silent Reader
Ett kollektivt flickigt kunskapsprojekt
Authors: Bengtsson Elin
Published: July 2021

Recension av Forsell, Linda, red. 2019. Girling together: A dialogue. Ett samverkansprojekt mellan scenkonstnärer och flickforskare om flickan i kulturen. Malmö: Universus Academic Press. (116 sidor)
O leitor de Letras: hábitos, suportes e estratégias
Authors: Pagnan Celso Leopoldo , Lopes Andressa Aparecida , Figueiredo Adriana Giarola , Lourenço Dayse De Souza , Semczuk Wéllem Aparecida de Freitas , Queiróz Eliane Provate
Published: July 2021

A digitalização de livros começou nos anos 40, e, no final do século XX, a produção de textos digitalizados se tornou mais frequente. Apesar do desenvolvimento de tecnologias de suporte à leitura, fato é que o impresso continua a ser bem aceito pelo público leitor. Considerando tal contexto, a presente pesquisa traça um perfil sobre os hábitos e as estratégias de leitura tanto no suporte digital, como no impresso, de graduandos em Letras do Ensino a Distância. Entre os objetivos, está o de aferir o nível de percepção dos leitores a respeito de suportes de leitura. Na metodologia, aplicamos questionário a alunos de Letras, que tendem a fazer mais leituras em ambientes virtuais, com o objetivo de aferir preferências, bem como capacidade de compreensão textual, de acordo com o suporte utilizado. Como conclusão prévia, percebeu-se a preferência pelo suporte impresso e suposta maior capacidade de intelecção nesse mesmo suporte.
Legal bases of activity of adjutants of a separate corps of gendarmes of the Russian Empire in the second half of the 19th century – the early 20th century
Authors: Bril’ Gennadiy G. , Zaytsev Leonid N.
Published: July 2021

The work highlights the activities of adjutants of the political police, their place and role in the work of the gendarmerie apparatus of the Russian Empire. The source base of the research was made up of archival documents and materials, memoirs of the employees of the Kostroma provincial gendarmerie department, rotmistrov A.M. Polyakov and V.V. Parfyonov. The authors have studied the legal framework governing the activities of adjutants of a separate corps of gendarmes, the directions of their activities, as well as their place and role in the structure of the security body. The article studies the historical and legal foundations of the creation, development and functioning of the institute of adjutant of a separate corps of gendarmes on the territory of the Russian Empire, and their main directions. Conclusions are drawn about the formation and development of a separate corps of gendarmes of the Russian Empire, as well as the special role of its adjutants in the field of external and internal security. The continuity and significance of law enforcement agencies in the historical context is emphasised.
USING THE PRINCIPLES OF AUTOMATED OPTICAL IMAGE RECOGNITION TO ASSESS THE STRUCTURAL STABILITY OF KNITTED FABRICS
Authors: Kopareva Ekaterina M. , Zimina Marina V. , Titov Sergey N. , Chagina Lyubov′ L.
Published: July 2021

The article shows the possibility of determining the characteristics of stretch deformation of knitted fabrics by optoelectronic processing of digital images using the developed software. The technique is applicable for knitted fabrics of sparse structures of any fibrous composition. The tests are carried out on a developed device that implements the possibility of spatial deformation of the samples. As a quantitative indicator of the change in the structure of the knitted fabric under tension, a coefficient, that characterises the change in the structure by increasing the through porosity of the fabric, is used. The stability of the structure of the knitted fabric is evaluated by an indicator that determines the recoverability of the loop structure after rest. The method was tested on linen knitted fabrics. The results of experimental studies should be used at the design stage of products to create knitted fabrics resistant to the action of operational loads.
USAGE OF DIGITAL MODELS IN THE DESIGN AND MANUFACTURE OF COMPLEX-PROFILE CUTTING INSERTS MADE OF BLANKS WITH FLAT FACES
Authors: Mikhailov Stanislav V. , Pomerantsev Maxim A. , Zimnitsky Oleg V. , Golubev Sergey A.
Published: July 2021

The article deals with the topic of cutting tools, which refers to high-tech, constantly improving products. Particular attention in the article is paid to modern trends in the development of cutting tools, including the design of new and improvement of existing designs of tools and technologies for its manufacture. The article is devoted to the topical problem of digital modelling of the cutting inserts that ensures favourable cutting conditions and stable shavings breakage during cutting. The article summarises new material on the practical experience of using digital models in the design of complex-profile inserts. The authors focus on the application of computer simulation of the sharpening operation. This allows to quickly change the geometry of the prototypes by changing the settings of the sharpening machine.
Kurunthogai Padalgalil Ulaviyal Parvai
Authors: G Kanmani Rajaselvi
Published: July 2021

The literature also serves as a testament to the way of life of the ancients. Poets’ express intuitions with aesthetic perspective. Whiskers. It is not possible to express oneself so clearly, even if one enjoys the interiors without transforming one's inner feelings. Explore the pantry in a more subtle way than that. They specialize in making other people understand what they think they are trying to visualize, just as men's feel a woman's feelings and women's feelings. Poets with such subtle creativity are also seen as psychoanalysts. Various studies have been performed on the Sangam literature. These studies are performed on human behaviors and the flow of the mind. The psychoanalytic functions of the characters in the short stories are explained psychologically.
Hubungan Keseimbangan Dan Koordinasi Mata Kaki Terhadap Kemampuan Passing Cabang Olahraga Futsal Siswa SMA Negeri 8 Gowa
Authors: Arham Sarifuddin
Published: July 2021

This study aims to determine the relationship between balance and passing ability, the relationship between ankle coordination and passing ability, and the relationship between balance and eye coordination on the passing ability of the futsal sport of SMA Negeri 8 Gowa students. This type of research is correlational with the independent variable being balance. and ankle coordination, while the dependent variable is the ability to pass. The study population was students of SMA Negeri 8 Gowa and a sample of 30 students was taken. The technique of determining the sample is random (random sampling) by lottery. The analysis technique used is descriptive analysis, correlation analysis, regression analysis and the data were analyzed using SPSS version 16. The results showed that 1). There is a significant relationship between the balance of the passing ability in the futsal sport of SMA Negeri 8 Gowa students with a correlation value (R) = 0.703. 2). There is a significant relationship between the coordination of the ankles and the passing ability of the futsal sport of SMA Negeri 8 Gowa students with a correlation value (R) = 0.742. 3). There is a significant relationship between balance and eye coordination on the passing ability of the futsal sport of SMA Negeri 8 Gowa students with a correlation value (R) = 0.887, and with the coefficient of determination (r2) = 786 or equal to 7.86%. Thus it can be concluded that there is a significant relationship between balance and coordination of the ankles on the passing ability of the futsal sport of SMA Negeri 8 Gowa students.
Структурні дослідження фоточутливих композитів «НЧ Au/плівка селену»
Authors: Рубіш В. М. , Грещук О. М. , Дуркот М. О. , Макар Л. І. , Поп М. М. , Юркін І. М. , Юхимчук В. О. , Ясінко Т. І.
Published: July 2021

Досліджено раманівські спектри аморфних плівок селену різної товщини — як номінально чистих, так і нанесених на неупорядковані масиви наночастинок золота. У випадку, коли плівки мають наномасштабні розміри (d < 100 нм) раманівські смуги детектуються тільки в композитних структурах «НЧ Au/плівка Se». Встановлено, що матриця аморфної плівки селену характеризується нерегулярною послідов-ністю ціс- і трансконфігурацій, тобто одна молекула може містити як елементи ланцюжків Sen, так і елементи кілець Se8. Структура фази, яка виникає в матриці аморфної плівки при відпалі та лазерному опроміненні відповідає структурі тригонального селену.
Методи групової обробки цифрових знімків при підготовці еталонних зображень
Authors: Юзефович В.В. , Цибульська Є.О.
Published: July 2021

Розглянуто методи спільної обробки серії зображень однієї ділянки місцевості, що застосовуються для зменшення різного роду зашумлень. Запропоновано модифікацію методу медіанної фільтрації і показано, що її використання при підготовці еталонних зображень дозволяє сформувати селективні зображення зі стійкими інформативними ознаками, які можуть застосовуватися для вирішення задачі навігації і наведення літальних апаратів при різних зовнішніх умовах.
Побудова сейсмічних портретів важливих подій за умови недоступності їхнього спостереження
Authors: Бріцький О. І.
Published: July 2021

Подано підхід до отримання сейсмічних портретів важливих подій за умови недоступності їхнього спостереження. Сутність запропонованого підходу полягає в тому, що спочатку визначаються сейсмічні порт-рети важливих подій з доступною боку, використовується принцип рухомого вікна, яке має розмір за часом, відповідний передбачуваному сейсмічного портрету. Вікно дискретно зсувається по осі часу на сейсмограмі з недоступною боку. У кожному положенні вікна обчислюється взаємокореляційна функція процесу у вікні з відомим портретом з доступною боку. Отримані сейсмічні портрети можна використовувати для вирішення завдань локації та ідентифікації важливих сейсмічних подій.
MEKANISME REAKSI FRAGMENTASI SENYAWA KIMIA DALAM KULIT BUAH ALPUKAT (Persea americana Mill.)
Authors: Antasionasti Irma , Sudewi Sri , Jayanto Imam , Siampa Jainer Pasca
Published: July 2021

ABSTRACTInvestigation of the fragment structure of ions and fragmentation reaction is crucial and needs to be done to reconstruct the chemical structure of the examined sample. Therefore, it is necessary to study the fragmentation mechanisms of chemical compound that identified from avocado peel to study the rules of the fragmentation reaction that occurs Sample analysis was examined using Gas Chromatography-Mass Spectrometry (GC-MS) with ionization Electron Impact (EI). Two compounds foun in avocado peel are 1,2,4-trihidroksiheptadek-12,16-diyne and 1,2,4-trihidroksiheptadek-16-yne-18-ene following the principle of even electron positive (EE+) which tends to always form even electron positive (EE+) and even electron neutral (EE0). The fragmentation mechanisms in both compounds are σ bond dissociation reaction and i cleavage which forms even electron positive (EE+) and even electron neutral (EE0). The fragmentation mechanism of the compounds in avocado peel can be estimated through interpretation of GC-MS mass spectra with base peak m/z 87. Keywords : Persea americana Mill.; GC-MS; fragmentation; 1,2,4-trihidroksiheptadek-12,16-diyne; 1,2,4-trihidroksiheptadek-16-yne-18-ene ABSTRAKPenyidikan struktur ion-ion fragment serta reaksi fragmentasinya sangat penting dan perlu dilakukan untuk dapat merekonstruksi kembali struktur kimia sampel yang diperiksa. Oleh karena itu, perlu diketahui mekanisme fragmentasi senyawa kimia yang diidentifikasi dari sampel kulit buah alpukat untuk mengetahui kaidah reaksi fragmentasi yang terjadi. Analisis sampel dilakukan menggunakan Gas-Chromatography-Mass Spectrometry (GC-MS) dengan cara ionisasi Electron Impact (EI). Dua senyawa yang terkandung dalam kulit buah alpukat yaitu senyawa 1,2,4-trihidroksiheptadek-12,16-diena dan senyawa 1,2,4-trihidroksiheptadek-16-ena-18-una mengikuti kaidah fragmentasi ion elektron genap positif (EE+) cenderung untuk selalu membentuk ion elektron genap positif (EE+) dan molekul elektron genap netral (EE0). Mekanisme fragmentasi pada kedua senyawa tersebut terjadi melalui reaksi dissosiasi ikatan σ dan reaksi pemutusan induktif membentuk ion elektron genap positif (EE+) dan molekul elektron genap netral (EE0). Mekanisme fragmentasi senyawa dalam kulit buah alpukat dapat diperkirakan melalui interpretasi spektrum massa GC-MS dengan base peak m/z 87. Kata kunci: Persea americana Mill.; GC-MS; fragmentasi; 1,2,4-trihidroksiheptadek-12,16-diena; 1,2,4-trihidroksiheptadek-16-ena-18-una
PENGARUH LAMA PENYIMPANAN EKSTRAK DAUN GEDI MERAH TER-HADAP KANDUNGAN TOTAL FLAFONOID
Authors: Peloan Thomas , Kaempe Hindang
Published: July 2021

ABSTRACT Trying to develop traditional medicine so that it can be in line with modern medicine. Various researches and developments that take advantage of technological advances are carried out as an effort to improve the quality and safety of products which are expected to further increase confidence in the benefits of medicines derived from nature. This study aims to determine the total content of polyphenols in red gedi leaves, fresh simplicia and dry simplicia and to determine the effect of storage time on the total polyphenol content. This study used a laboratory experimental method with hot extraction (infundation method) using water as a solvent. The filtrate obtained is then concentrated on a rotary evaporator. After testing, the results showed that the highest total flavonoid content was found in fresh red Gedi leaf extract (1686.5 mg / Kg), followed by dry Gedi Merah leaf extract (1666 mg / Kg). As for the infusion of fresh Gedi Merah leaves (1002 mg / Kg) and dry Gedi Merah leaf infusion (518.5 mg / Kg). while the highest total tannin content was found in dry Gedi Merah leaf extract (7779 mg / Kg), followed by fresh Gedi Merah leaf extract (3084 mg / Kg). As for the infusion of dry Gedi Merah leaves (1429 mg / Kg) and fresh Gedi Merah infusion (499 mg / Kg). Besides that, it is also known that the storage time for the infusion and extract of Gedi Merah leaves has a great effect on the total polyphenol content. Keywords : polyphenol, red gedi, extract. ABSTRAKPengembangan Obat tradisonal diusahakan agar dapat sejalan dengan  pengobatan modern. Berbagai penelitian dan pengembangan yang memanfaatkan kemajuan teknologi dilakukan sebagai upaya peningkatan mutu dan keamanan produk yang diharapkan dapat lebih meningkatkan kepercayaan terhadap manfaat obat yang berasal dari alam. Penelitian ini bertujuan untuk mengetahui kandungan total polifenol yang terdapat pada daun gedi Merah simplisia segar dan simplisia kering serta mengetahui pengaruh lama penyimpanan terhadap kandungan total polifenol. Penelitian ini menggunakan metode eksperimen laboratorium dengan  ekstraksi cara panas (metode infundasi) dengan menggunakan pelarut air. Filtrat yang didapat kemudian dipekatkan pada rotary evaporator. Setelah dilakukan pengujian maka didapatkan hasil bahwa kandungan total flavonoid tertinggi terdapat pada ekstrak daun Gedi merah segar (1686.5 mg/Kg), diikuti dengan ekstrak daun Gedi Merah kering (1666 mg/Kg). Sedangkan untuk infus daun Gedi Merah segar (1002 mg/Kg) dan infus daun Gedi Merah kering (518.5 mg/Kg). sedangkan Kandungan total tanin tertinggi terdapat pada ekstrak daun Gedi Merah kering (7779 mg/Kg), diikuti dengan ekstrak daun Gedi Merah segar (3084 mg/Kg). Sedangkan untuk infus daun Gedi Merah kering (1429 mg/Kg) dan infus daun Gedi Merah segar (499 mg/Kg). selain itu diketahui juga lama penyimpanan terhadap infus dan ekstrak daun Gedi Merah memiliki pengaruh yang besar terhadap kandungan total polifenol. Kata kunci : polifenol, gedi merah, ekstrak.
Equipe Editorial e Avaliadores Ad hoc
Authors: Andreis Greice da Silva Lorenzzetti
Published: July 2021

Equipe Editorial e Avaliadores Ad hoc da REMAT, v. 7, n. 1, 2021.
Publicação contínua: 01/01/2021 a 30/06/2021.
Gaussian integral by Taylor series and applications
Authors: Sales Lázaro Lima de , Silva Jonatas Arizilanio , Souza Eliângela Paulino Bento de , Souza Hidalyn Theodory Clemente Mattos de , Farias Antonio Diego Silva , Lavor Otávio Paulino
Published: July 2021

In this paper, we present a solution for a specific Gaussian integral. Introducing a parameter that depends on a n index, we found out a general solution inspired by the Taylor series of a simple function. We demonstrated that this parameter represents the expansion coefficients of this function, a very interesting and new result. We also introduced some Theorems that are proved by mathematical induction. As a test for the solution presented here, we investigated a non-extensive version for the particle number density in Tsallis framework, which enabled us to evaluate the functionality of the method. Besides, solutions for a certain class of the gamma and factorial functions are derived. Moreover, we presented a simple application in fractional calculus. In conclusion, we believe in the relevance of this work because it presents a solution for the Gaussian integral from an unprecedented perspective.
Promoção da alfabetização científica (AC): construção, formação e desenvolvimento na prática docente
Authors: Lopes Werner Zacarias , Nunes Garcia Rosane
Published: July 2021

Resumo: O presente estudo teve como objetivo analisar as reflexões e entendimentos acerca da Alfabetização Científica que emergem posteriormente a um processo formativo de professores, bem como investigar as propostas didáticas elaboradas nos Planos de Aula (PA) com base nessa formação. Trata-se de uma pesquisa qualitativa que utiliza a pesquisa-ação como metodologia. Para a coleta de dados, foram aplicados questionários e, na sequência, foi ofertado um curso de formação continuada, enfocando a abordagem do tema AC para a prática docente nos Anos Iniciais do Ensino Fundamental. Também, realizaram-se observações in loco em torno das práticas docentes de três professores, que atuam em 4º e 5º anos de escolas públicas da rede municipal de Alegrete-RS. Entre os resultados obtidos, percebeu-se que a formação continuada serviu para que os professores reflexionassem sobre a sua própria prática, provocando mudanças no seu fazer docente. Na construção dos PA, os eixos estruturantes da AC foram incorporados aos objetivos propostos para as aulas. Por fim, nas observações in loco, notou-se o desenvolvimento e a promoção da AC na prática docente, especificamente na prática dos professores P4 e P6. A partir dos resultados obtidos nesta pesquisa, foi possível verificar como a formação continuada é necessária e importante para auxiliar na qualificação do Ensino das Ciências da Natureza nos Anos Iniciais do Ensino Fundamental.
Palavras-chave: Educação Científica. Formação de professores. Ensino de Ciências.
Percepções sobre a educação em anatomia humana pós-pandemia do Covid-19: revisão sistemática da literatura
Authors: Fernandes dos Santos Bottino Caroline
Published: July 2021

Resumo: No ano de 2020, a pandemia do novo coronavírus impeliu ao isolamento social e à virtualização da educação. Nesse cenário, o objetivo deste estudo foi realizar uma revisão sistemática da literatura para investigar como os docentes utilizaram as tecnologias digitais de informação e comunicação (TDIC) no ensino remoto de anatomia humana, assim como suas percepções e perspectivas sobre a educação em anatomia pós-pandemia. Entre os 214 artigos encontrados, cinco foram analisados mediante os critérios de inclusão. Como resultados, os professores realizaram aulas teóricas e práticas, síncronas e assíncronas, por videoconferências com interação, assim como disponibilizaram recursos educacionais (RE) tais como fotos, vídeos, atlas virtuais 2D e 3D, simulações virtuais e programas de dissecção on-line, em ambientes virtuais de aprendizagem. Entre as percepções, foi relatado: possibilidade de criar RE, necessidade de melhorar habilidades no uso de TDIC, dificuldade em avaliar, dificuldades na relação professor-aluno, falta de tempo e sobrecarga de trabalho. As perspectivas sobre a educação em anatomia pós-pandemia incluíram uma abertura à inserção de TDIC e ao ensino híbrido, uma reavaliação da necessidade do uso de cadáveres, a colaboração docente em comunidades de práticas e um maior suporte institucional à educação on-line. Como conclusão, é difícil prever o impacto do ensino remoto na educação em anatomia; contudo, os estudos analisados apontam para uma mudança de paradigmas por meio da inserção de TDIC no currículo e da reavaliação do uso de cadáveres em aulas práticas.
Palavras-chave: Ensino de Anatomia. Ensino remoto. Tecnologias digitais. Coronavírus. Tecnologias Digitais de Informação e Comunicação.
Literacia científica: a importância da formação de competências para a popularização e percepção pública de CT&I
Authors: Roque de Ameida Cristiane , Adriano Guarda Emerson , Monteiro da Rocha Suyene
Published: July 2021

Resumo: Neste trabalho, tomamos a formação científica como objeto de estudo e questionamos como ela está contemplada no Plano Nacional de Educação - 2014-2024. O objetivo deste artigo é abordar a importância desse tipo de formação como estratégia, no ambiente escolar, para a aquisição da literacia científica, contribuindo para a popularização e melhoria da percepção pública da ciência, da tecnologia e da inovação. Trata-se de uma pesquisa qualitativa, bibliográfica, documental e analítico-descritiva, a qual utiliza-se da técnica de análise de conteúdo. Por meio de uma dimensão quantitativa complementar, é possível relacionar os dados indicadores da qualidade da educação nacional e da percepção pública de ciência e tecnologia no país com competências no domínio da literacia científica. Ainda mais, mostra-nos que o país precisa de uma revisão em sua política nacional de educação, considerando que os resultados dos indicadores revelam o não atingimento das metas estabelecidas. A formação científica deve ser considerada, ao longo de todo o percurso educativo, como uma valiosa ferramenta em prol de uma cidadania crítica e participativa na sociedade do conhecimento, importante processo de preparação para a literacia científica. 
Palavras-chave: Consciência científica. Educação científica na Educação Básica. Literacia.
Uso de simulações computacionais em aulas de Física: um estudo sobre a sua influência no processo de aprendizagem dos estudantes com deficiência
Authors: Sousa Carvalho Patrícia , Sales Oliveira Ana Carolina
Published: July 2021

Resumo: Uma das alternativas para auxiliar o professor no processo de inclusão do estudante com deficiência é o uso das Tecnologias de Informação e Comunicação (TIC), uma vez que esses recursos podem criar situações de aprendizagens mais equitativas. Sendo assim, o presente artigo tem por objetivo compreender as potencialidades do uso das TIC, especificamente das simulações computacionais, para o processo de aprendizagem dos estudantes com deficiência, nas aulas de Física de uma escola regular da educação básica. A pesquisa é de cunho qualitativo, fundamentada principalmente nas pesquisas de Flick (2009). A análise do estudo se deu a partir dos dados obtidos por meio  de diário de campo, questionários, atividades realizadas pelos estudantes e gravações, todos realizados durante o desenvolvimento das atividades relacionadas à essa pesquisa. Observou-se, ao longo das intervenções, que os recursos tecnológicos favoreceram o processo de aprendizagem, trazendo maior significação aos conteúdos abordados, possibilitando que a aprendizagem fosse realizada de maneira lúdica, bem como uma alternativa para o estudante sair da posição passiva da construção do seu conhecimento e ser um agente ativo, o que se entende ser importante para uma aprendizagem efetiva. Além disso, as simulações computacionais se configuraram como recursos válidos para facilitar e superar algumas limitações dos estudantes com deficiência. Por fim, a pesquisa mostrou que estratégias didáticas aliadas  a tecnologias digitais são significativas para o processo de aprendizagem dos estudantes.
Palavras-chave: Educação Inclusiva. Simulações Computacionais. Ensino de Física.
Conhecimento e valorização das culturas indígenas na Educação Básica a partir da pesquisa-ação no ensino de História: uma experiência do PIBID interdisciplinar
Authors: Bampi Aumeri Carlos , Da Cunha Ivelise , Kohler Marisa Regina , Pinheiro José Aldair
Published: July 2021

Resumo: O estudo apresenta resultados de uma ação pedagógica desenvolvida no âmbito do PIBID - Subprojeto Interdisciplinar Formação para a Diversidade: Educação Linguística, Educação para a Diversidade Cultural e Educação Ambiental nas licenciaturas (Letras e Pedagogia) no contexto da Amazônia mato-grossense. A atividade de interação ocorreu em uma escola pública municipal, na cidade de Sinop, na disciplina de ensino de História, na qual se desenvolveu a ação pedagógica da docente, dos bolsistas e das crianças, com a finalidade de conhecer e valorizar as culturas indígenas mato-grossenses, pouco abordadas. Como metodologia, as atividades seguiram a pesquisa-ação educativa. Os resultados apontam que a participação ativa no processo de pesquisa-ação altera o processo de ensino-aprendizagem, aproxima e conecta os estudantes (tanto da universidade quanto da Educação Básica) com a realidade da diversidade cultural presente no contexto. Como conclusão tem-se que, no exercício necessário de busca de conhecimento da realidade da diversidade cultural indígena, foram superadas as lacunas dos livros didáticos no ensino de História e na própria formação dos licenciandos no tocante à percepção da diversidade cultural indígena existente regionalmente.
Palavras-chave:PIBID. Diversidade Cultural. Ensino de História. Culturas Indígenas.
Manifestações de gênero na narrativa brasileira contemporânea e suas repercussões no ensino de literatura: uma análise da obra 'Enfim, Imperatriz', de Maria Fernanda Elias Maglio
Authors: Chitolina Cardoso Gabriella , Valim de Melo Cimara
Published: July 2021

Resumo: A literatura brasileira no cenário atual tem, cada vez mais, buscado representar indivíduos invisibilizados pela sociedade. Assim, destaca-se a contribuição de escritoras contemporâneas, muitas das quais têm abordado personagens subalternizadas e fomentado o debate sobre questões de gênero sob uma perspectiva decolonial. Entre elas está a escritora Maria Fernanda Elias Maglio, autora do livro de contos Enfim, Imperatriz, publicado em 2017 e vencedor do prêmio Jabuti no ano de 2018. Tomando como base a referida obra literária, o presente artigo objetiva analisar a maneira pela qual a autora retrata as relações de gênero e, mais especificamente, perceber como os contos “Viva em Maputo” e “Geni” representam a objetificação social, a violência e a própria (de)colonialidade. Em sua metodologia, a pesquisa, de abordagem qualitativa, contou com a análise bibliográfica para a investigação da narrativa brasileira do século XXI em termos teórico-críticos. Como resultados, percebe-se uma forte representatividade feminina na obra de Maglio, bem como a presença da objetificação social em diferentes contextos sociais retratados pelos contos, elementos que podem corroborar o trabalho docente e trazer repercussões positivas ao ensino de literatura, fomentando a leitura do mundo e o olhar atento acerca das relações de alteridade. A partir das análises, observa-se a necessidade da construção de uma educação minorizante, que aborde questões sociais da contemporaneidade pelo viés do indivíduo descentrado e culturalmente marginalizado, em um movimento de transgressão cultural frente às estruturas dominantes de poder.
Palavras-chave: Literatura brasileira contemporânea. Decolonialidade. Gênero. Educação minorizante.
Alfabetização científica e a formação do profissional cidadão: reflexões do Projeto Pedagógico do Curso Técnico em Agropecuária do IFCE campus Crateús
Authors: Holanda Cavalcante Júnior José Aglodualdo , Said Pierre Carneiro Isabel Magda , Vieira da Silva Cavalcante Lígia
Published: July 2021

Resumo: O presente trabalho apresenta uma análise, à luz dos conceitos da Alfabetização Científica (AC), do Projeto Pedagógico do Curso Técnico Subsequente em Agropecuária ofertado pelo Instituto Federal de Educação, Ciência e Tecnologia do Ceará (IFCE) campus Crateús. A perspectiva da AC tomada neste artigo é aquela cujo ensino das ciências seja empregado na construção de benefícios para as pessoas, a sociedade e o meio ambiente. Apresenta um resgate histórico da relação entre educação, trabalho e cidadania, discorrendo sobre os diversos conceitos empregados para a AC e o seu papel na formação de um cidadão crítico e reflexivo, bem como sobre a democratização de práticas educativas pautadas numa perspectiva de ciência-tecnologia-sociedade. A pesquisa se pautou numa abordagem qualitativa e de natureza descritiva, a partir das quais, através de uma pesquisa bibliográfica e documental, foram investigados como os conceitos de AC estão presentes no Projeto Pedagógico do Curso Técnico em Agropecuária. Os dados coletados e analisados permitem identificar elementos que aproximam o curso de um viés de AC. No entanto, verificou-se a existência de algumas lacunas, como a ausência na matriz curricular de disciplinas que tenham uma abordagem de educação cidadã. O estudo aponta, assim, para a necessidade de uma reformulação curricular do curso pautada nos conceitos da AC, bem como a importância da formação continuada dos docentes envolvidos no ensino técnico, propiciando aos egressos não só aptidão para o exercício de suas competências profissionais, mas tomando a educação como um processo de libertação e transformação social. 
Palavras-chave: Alfabetização Científica. Educação. Cidadania. Projeto Pedagógico. Ensino Técnico.