bluuebunny/crossref_metadata_2025_split huggingface dataset:
WAYS TO IMPROVE THE QUALITY OF MAINTENANCE AND REPAIR OF LOGGING VEHICLES
Authors: Yakovlev Konstantin , Legostaev Sergey , Sklyarov I. 
Published: October 2020

The article discusses ways to improve the quality of maintenance and maintenance of forest vehicles. Product quality is a controlled object that can be adjusted on the basis of the principles of general control theory, sequentially establishing quality planning tasks, organizing the actions of the actuator with ensuring the execution of these tasks, comparing the actual value of the obtained result with the planned task, implementing direct and reverse connections and possibilities of influencing the actuator in case of deviations of actual quality values from the planned task.
The goal of quality management is to create products of a quality level that meets certain needs and demands of the consumer, meets the established requirements.
Quality management is an organic component of the overall enterprise management system. All employees of the enterprise, including quality service personnel, participate in quality management and assurance.
The principles of operating quality systems at maintenance and repair enterprises (customer orientation; leadership of heads; Involvement of employees, process and system approaches to quality management, continuous improvement of the system, decision-making based on information monitoring) and factors affecting the quality of works (spare parts for units; timeliness of maintenance; quality of technical diagnosing; Qualification and motivation of employees).
Survei Penerapan Metode Pembelajaran Value Clarification Technique untuk Membentuk Sikap Sosial Siswa pada Guru Pembelajaran Penjasorkes
Authors: Hasanah Siti Uswatun , Gustiawati Resty , Iqbal Rahmat 
Published: October 2020

Tujuan penelitian ini adalah ingin mengetahui penerapan metode pembelajaran value clarification technique untuk membentuk sikap sosial siswa dalam pembelajaran pendidikan jasmani olahraga dan kesehatan pada guru smp dikecamatan kutawaluya. Penelitian ini merupakan penelitian deskriptif kuantitatif dengan menggunakan metode survei, teknik pengambilan datanya dengan menggunakan angket. Penelitian ini pengambilan teknik Probability sampling. Populasi dari penelitian ini adalah seluruh guru sekolah menengah pertama se-kecamatan kutawaluya yang berjumlah 91 orang dari seluruh populasi guru PJOK di kecamatan kutawaluya berjumlah 12 orang. Data yang terkumpul dianalisis dengan teknik statistik deskriptif dengan persentase. Uji validitas instrumen menggunakan rumus Pearson Product Moment dengan hasil butir soal yang valid berjumlah 22 butir dari 25 pernyataan. Uji reliabilitas menggunakan rumus Alpha Cronbach sebesar 0,956 sehingga instrumen tersebut reliabel. Hasil penelitian menunjukan bahwa penerapan metode pembelajaran value clarification technique untuk membentuk sikap sosial siswa dalam pembelajaran penjas pada guru smp di kecamatan kutawaluya adalah rata-rata 51,1667 memiliki kategori “Cukup baik” hasil data sebanyak 5 responden dengan presentase (41,7%). Dengan demikian penerapan metode pembelajaran value clarification technique masih belum di implementasikan oleh beberapa guru pendidikan jasmani olahraga dan kesehatan yang ada di kecamatan kutawaluya.
Kata kunci : Metode Pembelajaran Value Clarification Technique,Sikap Sosial, Pendidikan Jasmani Olahraga Dan Kesehatan, Guru
HUBUNGAN PARITAS DENGAN PENGETAHUAN IBU NIFAS TENTANG PERAWATAN TALI PUSAT DI PUSKESMAS BAAMANG I SAMPIT TAHUN 2019
Authors: Priansiska Norwidya 
Published: October 2020

The World Health Organization (WHO) found the number of infant deaths at 560,000, which is caused by infection of the umbilicalcord. Mothers who lack knowledge in teating the cord, causing the mother to usetraditional medicine clostridium tetanithus enabling the development of which can cause to infant mortality a baby. Types of quantitative analytic research. Cross sectional research design. The total of respondents as a sample of 20 postpartum. Data collection technique with accidental sampling and data analysis using univariate analysis and bivariate analysis. The result of univariate analysis showed that the majority of parity correctly as much as 10 postpartum (50%) , then knowledge the majority correctly as much as 13 postpartum (65%) . From bivariate analysis shows that there is a relationship between parity with postpartum knowledge about the umbilical cord carebecause ρ value < 0,05 (ρ value = 0,034).
A extensão universitária em prol da prevenção e promoção do diagnóstico precoce de câncer em Minas Gerais
Authors: Freitas Rafaela Alves , Blumer Eryc Abido , Resende Laíse Oliveira , De Sousa Marcus Vinícius Arantes 
Published: October 2020

Este artigo trata de um relato de experiência de um projeto de extensão realizado por discentes e docentes da área da saúde da Universidade Federal do Triângulo Mineiro, com o objetivo de difundir informações a respeito da prevenção e diagnóstico precoce de diversos tipos de câncer. O projeto buscou alcançar um público de diversas faixas etárias, executando suas ações em uma escola infantil, em uma praça da cidade, e para pacientes que estivessem na sala de espera do ambulatório do Hospital das Clínicas da universidade. Fomentou-se o trabalho multidisciplinar no desenvolvimento das ações de prevenção e promoção à saúde, por meio de uma equipe de diversas áreas da saúde. Foram utilizados recursos didáticos e lúdicos adequados para as diferentes faixas etárias e níveis de escolaridade. A experiência contribuiu para a formação dos discentes da instituição de ensino, permitindo-lhes executar uma proposta de atuação integrada, interdisciplinar e intersetorial, em consonância com as prerrogativas do Sistema Único de Saúde, bem como contribuiu para promover a prevenção e diagnóstico precoce do câncer entre o público-alvo.
Palavras-chave: Oncologia; Relações Comunidade-Instituição; Formação em Saúde
University extension for the prevention and promotion of early cancer diagnosis in Minas Gerais
Abstract: This paper is an experience report of an extension project carried out by students and professors in the health area of a Brazilian university in Minas Gerais, to disseminate information about the prevention and early diagnosis of various types of cancer. The project aimed to reach an audience of different age groups, performing their activities in a primary school, in a city square, and patients who were waiting to be attended at the University Clinical Hospital. Multidisciplinary work was carried out to develop prevention and health-promoting activities through a team of different health-related courses. Didactic and ludic resources suitable for different age groups and educational levels were used. The experience contributed to the training of students at the educational institution, allowing them to carry out an integrated, interdisciplinary, and intersectoral action proposal, in line with the prerogatives of the Brazilian Unified Health System, as well as helping to promote the prevention and early diagnosis of cancer among the targeted audience.
Keywords: Oncology; Community-Institutional Relations; Health Training
A importância da Feira Estadual de Ciências para a Divulgação Científica em Roraima
Authors: Dos Reis Esterline Felix , Teixeira Alcinda De Souza Muniz , Boldrini Bianca Maíra de Paiva Ottoni , Rizzatti Ivanise Maria 
Published: October 2020

Este artigo é resultado de uma pesquisa realizada no Programa de Pós-Graduação em Ensino de Ciências, pela Universidade Estadual de Roraima, e teve como objetivo avaliar a contribuição da Feira de Ciências Estadual de Roraima – FECIRR, para a Divulgação Científica no estado, segundo concepções de professores dos anos finais do ensino fundamental, participantes da FECIRR. A metodologia consistiu de uma pesquisa de campo do tipo qualitativa, onde aplicou-se um questionário contendo cinco questões a dez professores durante a XXVI Feira de Ciências Estadual de Roraima ocorrida em novembro de 2018 no Parque Anauá, situado na capital Boa Vista. Buscou-se com isso, informações sobre o envolvimento de alunos e professores na Feira de Ciências e a relação do processo como um todo para o desenvolvimento de habilidades como as presentes no novo documento normativo, a Base Nacional Comum Curricular - BNCC. Os resultados demonstraram que as Feiras de Ciências contribuem significativamente para a Divulgação Científica em Roraima. Sendo necessário incentivar a popularização de eventos como esses para colaborar no processo de ensino e aprendizagem dos alunos, bem como, permitir que a comunidade tenha acesso às informações científicas levantadas.
Dampak Covid 19 Terhadap Cara Berpikir Dalam Pembelajaran Daring: Studi Kasus di Yogyakarta
Authors: Rohmadani Adinda Icha 
Published: October 2020

Fenomena bertambahnya kasus covid 19 di Indonesia mengindikasikan bahwa langkah yang dilakukan kurang tepat dan cepat untuk mencegah coronavirus yang cepat menyebar luas. Hingga pemerintah menerapkan kebijakan baru social distancing. Akibatnya dalam bidang pendidikan diterapkan pembelajaran daring. Dalam perspektif neurosains berpikir kreatif dan inovatif dalam melaksanakan pembelajaran daring. Tujuan penelitian ini adalah menemukan model pembelajaran daring. Teknik pengumpulan data dengan survey bentuk kualitatif deskriptif. Teknik analisis lalu di deskripsikan. Hasil penelitian pembelajaran daring digunakan mempertimbangkan kondisi social distancing, serta pembelajaran daring dijadikan solusi pandemic covid 19.
Prosta metoda selekcji materiałów hodowlanych pszenicy i pszenżyta z wykorzystaniem nieoczyszczonego filtratu zawierającego efektor Tox3
Authors: Walczewski Jakub 
Published: October 2020

Parastagonospora nodorum jest powszechnie występującym nekrotroficznym patogenem zbóż atakującym przede wszystkim pszenżyto i pszenicę, wywołuje on septoriozę liści i plew, która w sprzyjających warunkach pogodowych powoduje duże straty w plonie. Patogen ten wykorzystuje szereg specyficznych białkowych efektorów, które u wrażliwych genotypów uruchamiają szlaki sygnałowe prowadzące do programowanej śmierci komórek, w wyniku, czego powstają zmiany nekrotyczne w zainfekowanej tkance. W powyższej pracy przedstawiono procedurę testowania obiektów hodowlanych pod względem wrażliwości na efektor Tox3 z wykorzystaniem nieoczyszczanego filtratu z hodowli P. nodorum. Podejście to pozwala osiągnąć zadowalające efekty selekcji bez konieczności stosowania kłopotliwych procedur oczyszczania lub ekspresji opartej o genetycznie zmodyfikowane mikroorganizmy.
Starspot Mapping with Adaptive Parallel Tempering. I. Implementation of Computational Code
Authors: Ikuta Kai , Maehara Hiroyuki , Notsu Yuta , Namekata Kosuke , Kato Taichi , Notsu Shota , Okamoto Soshi , Honda Satoshi , Nogami Daisaku , Shibata Kazunari 
Published: October 2020

AbstractStarspots are thought to be regions of locally strong magnetic fields, similar to sunspots, and they can generate photometric brightness modulations. To deduce stellar and spot properties, such as spot emergence and decay rates, we implement a computational code for starspot modeling. It is implemented with an adaptive parallel tempering algorithm and an importance sampling algorithm for parameter estimation and model selection in the Bayesian framework. For evaluating the performance of the code, we apply it to synthetic light curves produced with three spots. The light curves are specified in the spot parameters, such as the radii, intensities, latitudes, longitudes, and emergence/decay durations. The spots are circular with specified radii and intensities relative to the photosphere, and the stellar differential rotation coefficient is also included in the light curves. As a result, stellar and spot parameters are uniquely deduced, and the number of spots is correctly determined: the three-spot model is preferable because the model evidence is much greater than that of the two-spot model by orders of magnitude and more than that of the four-spot model by a more modest factor, whereas the light curves are produced to have two or one local minimum during one equatorial rotation period by adjusting the values of longitude. The spot emergence and decay rates can be estimated with error less than an order of magnitude, considering the difference of the number of spots.
A New Approach for the Regression of the Center Coordinates and Radius of the Solar Disk Using a Deep Convolutional Neural Network
Authors: Zhu Gaofei , Lin Ganghua , Wang Dongguang , Yang Xiao 
Published: October 2020

Abstract
This paper presents a new approach for the regression of the center coordinates and radius of the solar disk in Hα solar full-disk images by using a Deep Convolutional Neural Network. We use ∼100,000 original Hα solar full-disk images obtained from Huairou Solar Observing Station as the experimental data set. The data set includes two parts: the original image and three numeric values (center coordinates and radius). In order to deal with the uneven distribution of the solar disk position in the original image, we randomly shift the solar disk during image preprocessing. Furthermore, data augmentation is also used to increase the robustness of the model. By evaluating the model with R-square and relative error, the center coordinates and the radius of the solar disk are proved to be effectively regressed. The data sets we constructed and source code are available as open source on GitHub.
Diagonal Ridge Pattern of Different Age Populations Found in Gaia-DR2 with LAMOST Main-sequence Turnoff and OB-type Stars
Authors: Wang H.-F. , Huang Y. , Zhang H.-W. , López-Corredoira M. , Cui W.-Y. , Chen B.-Q. , Guo R. , Chang J. 
Published: October 2020

Abstract
We revisit the diagonal ridge feature (diagonal distributions in the R, v

ϕ
plane) found in Gaia and present a timing analysis for it between Galactocentric distances of R = 7.5 and 12 kpc, using main-sequence turnoff and OB stars selected from the LAMOST Galactic spectroscopic surveys. We recover the ridge pattern in the R–v

ϕ
plane color coded by mean radial velocity and find that this feature is presented from very young (OB stars, few hundred megayears) to very old populations (τ = 9–14 Gyr). Meanwhile, some ridge features are also revealed in the metallicity [Fe/H], [α/Fe], and v

z
distributions. In the L

Z
, v

ϕ
plane, one of the ridge patterns, with constant angular momentum per unit mass, shows variations with different age populations compared. However, the remaining two are relatively stable, implying there might be two kinds of ridge patterns with different dynamical origins and evolutions.
Convectively Driven 3D Turbulence in Massive Star Envelopes. I. A 1D Implementation of Diffusive Radiative Transport
Authors: Schultz William C. , Bildsten Lars , Jiang 姜 Yan-Fei 燕飞 
Published: October 2020

Abstract
Massive (M > 30 M
⊙) stars exhibit luminosities that are near the Eddington limit for electron scattering, causing the increase in opacity associated with iron at

T

≈
180
,
000

K

to trigger supersonic convection in their outer envelopes. Three-dimensional radiative hydrodynamics simulations by Jiang and collaborators with the Athena++ computational tool have found order-of-magnitude density and radiative flux fluctuations in these convective regions, even at optical depths

≫
100

. We show here that radiation can diffuse out of a parcel during the timescale of convection in these optically thick parts of the star, motivating our use of a “pseudo” Mach number to characterize both the fluctuation amplitudes and their correlations. In this first paper, we derive the impact of these fluctuations on the radiative pressure gradient needed to carry a given radiative luminosity. This implementation leads to a remarkable improvement between 1D and 3D radiative pressure gradients, and builds confidence in our path to an eventual 1D implementation of these intrinsically 3D envelopes. However, simply reducing the radiation pressure gradient is not enough to implement a new 1D model. Rather, we must also account for the impact of two other aspects of turbulent convection: the substantial pressure and the ability to transport an appreciable fraction of the luminosity, which will be addressed in upcoming works. This turbulent convection also arises in other instances where the stellar luminosity approaches the Eddington luminosity. Hence, our effort should apply to other astrophysical situations where an opacity peak arises in a near Eddington-limited, radiation pressure-dominated plasma.
Full Transport General Relativistic Radiation Magnetohydrodynamics for Nucleosynthesis in Collapsars
Authors: Miller Jonah M. , Sprouse Trevor M. , Fryer Christopher L. , Ryan Benjamin R. , Dolence Joshua C. , Mumpower Matthew R. , Surman Rebecca 
Published: October 2020

Abstract
We model a compact black hole-accretion disk system in the collapsar scenario with full transport, frequency dependent, general relativistic radiation magnetohydrodynamics. We examine whether or not winds from a collapsar disk can undergo rapid neutron capture (r-process) nucleosynthesis and significantly contribute to solar r-process abundances. We find the inclusion of accurate transport has significant effects on outflows, raising the electron fraction above

and preventing third-peak r-process material from being synthesized. We analyze the time evolution of neutrino processes and electron fraction in the disk and present a simple one-dimensional model for the vertical structure that emerges. We compare our simulation to semi-analytic expectations and argue that accurate neutrino transport and realistic initial and boundary conditions are required to capture the dynamics and nucleosynthetic outcome of a collapsar.
A QPO in NGC 4945 from Archival RXTE Data
Authors: Smith Evan , Robles Rebecca , Perlman Eric 
Published: October 2020

Abstract
We report the discovery of an ∼6 week quasi-periodic oscillation (QPO) in archival NGC 4945 data observed by the Rossi X-ray Timing Explorer (RXTE) satellite. QPOs are important observables in accretion disks and have been studied extensively in both neutron star (NS) and black hole (BH) X-ray binaries (XRB). QPOs should be present in active galactic nuclei (AGN) if galactic BHs and supermassive black holes are governed by a common set of physical processes. The search for QPOs in AGN has proven difficult because the time scales would be much longer, due to their higher mass. RXTE AGN light curves spanning 1996 to 2011 provide an excellent and perhaps unique opportunity to search for low-frequency QPOs. We investigated the 533 RXTE observations made of the Seyfert-2 AGN, NGC 4945. During a large cluster of observations in 2006–2007 (194 observations, spanning 396 days), the Lomb–Scargle periodogram shows a candidate QPO at 0.274 μHz (period ≈42.2 days). We estimate the uncertainties using the false alarm probability. We discuss the possible identification of this feature with the Lense–Thirring precession period.
Impacts émancipateurs d’une coopération scientifique-enseignant à l’école primaire sur les représentations des enfants et leur mobilisation dans les apprentissages en sciences
Authors: Lafosse-Marin Marie Odile 
Published: October 2020

Un enseignement des sciences dans lequel un étudiant scientifique coopère avec un professeur des écoles contribue-t-il à une forme d’émancipation des élèves ? Les impacts de cette pratique ont été étudiés sur les apprentissages des enfants à travers les interactions langagières lors de séances de science à l’école primaire. Les représentations que les filles et les garçons se construisent des scientifiques ont été appréhendées par l’analyse de 1500 dessins légendés d’élèves de cycle 3. Des facteurs d’émancipation sont apparus : émancipation d’un assujettissement à une forme de savoir ; échappée de l’assignation à une « place » dans la classe et du « contrôle » permanent du professeur ; affranchissement de représentations sociales enfermantes. La dynamique interactive multiforme entre professeur- étudiant-élèves s’accompagne d’une sorte de circularité libératrice entre les actes de savoir/ enseigner/apprendre. Une offre de savoir témoignée par le binôme enseignant, plutôt qu’injonctive, rend l’élève plus libre pour répondre. De nouvelles postures pour apprendre sont investies. Une mobilisation inédite est suscitée par une possible identification au jeune scientifique. Elle conduit à une libération d’autocensures dues à des stéréotypes qui pèsent particulièrement sur les filles et les enfants de milieux défavorisés, ces derniers étant parfois exclus des sciences sous prétexte de retour aux soi-disant fondamentaux « lire, écrire, compter ».
Former une ambiance sacrée
Authors: Gonçalves Kelber Pereira 
Published: October 2020

Cette recherche s’intéresse au processus de mise en scène d’une « ambiance sacrée » à travers des productions audiovisuelles publiées et diffusées par de jeunes femmes laïques chrétiennes brésiliennes sur la plateforme YouTube. À partir des productions qui ont pour ambition d’apprendre aux internautes à créer un cahier de prières, une ambiance sacrée s’élabore en deux temps : d’une part, à partir de l’assemblage d’objets ordinaires du quotidien et dans un espace physique qui lui est réservé, correspondant le plus souvent à la chambre des youtubeuses ; d’autre part, lors de l’édition de vidéos grâce à l’usage des dispositifs socio-numériques conçus à cet effet. Bien que s’inscrivant dans une démarche pédagogique d’incitation à une pratique de piété populaire, ces productions audiovisuelles cherchent également à donner à voir un « éthos » de l’idéal de la femme chrétienne ainsi que de parler du dieu chrétien dont elles sont les interlocutrices.
Termite-Repellent Activity and Chemical Composition of West Indian Mahogany Wood, (Swietenia Mahagoni Jacq.) with Special Reference to the P2 Fraction
Authors: Asenjo Conrado F. , Amorós Marín Luis , Torres Wanda , Del Campillo Alice 
Published: October 2020

1. Serial extraction of West Indian mahogany wood with selective solvents was performed. 2. The petroleum ether extract was the only fraction to exhibit promising termite-repellent activity. 3. Mahogany blocks subjected to petroleum ether extraction became susceptible to termite attack. 4. A waxy substance (P2 fraction) separated from the petroleum ether extract at times showed high termite-repellent activity. The termite-repellent principle in the P2 fraction seems to be a labile one, as the termite-repellent activity varied greatly from batch to batch. 5. The P2 fraction is a mixture of two major components and of at least a third minor one. As far as we have been able to determine this mixture, at the elemental level, contains carbon, hydrogen, and oxygen only, while esters have been the only compounds definitely characterized at the structural level.
Behavior of Enzymes Governing Starch- and Sucrose-Forming Pathways in Two Sugarcane Varieties Supplied with Variable Nitrate and Phosphate in Sand Culture
Authors: Alexander Alex G. 
Published: October 2020

In order to test the hypothesis that starch formation and metabolism is of importance to the sucrose-forming potential of cane, a series of 4-week-old plants was subjected to treatments designed to cause wide fluctuations in the enzyme starch phosphorylase. Treatments included high and low nitrate to vary acidity, high and low phosphate to vary the ratio of H3PO4 to glucose-1-phosphate, and two varieties (Uba and M.336) with distinct reputations for producing starch and sucrose, respectively. Treatments were supplied in 2 X 2 X 2 factorial combination. Sugar and enzyme assays were conducted with leaf and meristem samples harvested after 8 weeks of treatment. Sugars included total ketose, total reducing sugars, sucrose, fructose, and glucose. Enzymes included sucrose phosphorylase, starch phosphorylase, invertase, amylase, hexokinase, peroxidase, polyphenol oxidase, and a series of acid phosphatases hydrolyzing ß-glycerophosphate, glucose-1-phosphate, glucose-6-phosphate, fructoses- phosphate, 3-phosphoglyceric acid, ATP, and ADP.