bluuebunny/crossref_metadata_2025_split huggingface dataset:
KEEFEKTIFAN MODEL PEMBELAJARAN QUANTUM TEACHING BERBANTUAN MEDIA POWERPOINT TERHADAP HASIL BELAJAR IPS
Authors: Putri Trisna Amalia 
Published: February 2021

Abstrak
Berdasarkan hasil observasi, wawancara dan data hasil belajar didapatkan bahwa hasil belajar belum optimal dikarekan kurangnya keikutsertaan peserta didik dalam pembelajaran dan belum tepatnya pemilihan model pembelajaran. Penelitian ini bertujuan untuk menguji keefektifan model Quantum Teaching berbantuan media Powerpoint terhadap hasil belajar IPS siswa kelas IV SDN Srondol Kulon 02. Penelitian ini merupakan penelitian eksperimen semu dengan bentuk Nonequivalent Control Group Design. Populasi penelitian ini berjumlah 111 siswa. Teknik pengambilan sampel dengan cluster random sampling. Pengumpulan data menggunakan teknik tes dan non tes. Hasil uji hipotesis memperoleh nilai thitung>ttabel (3,594>1,993). Hal ini menunjukkan adanya perbedaan yang signifikan antara penerapan model Quantum Teaching berbantuan media Powerpoint dan kelas kontrol. Hasil uji N-gain menunjukkan kelas eksperimen lebih tinggi dibandingkan dengan kelas kontrol (0,5621>0,2820). Simpulan hasil penelitian ini adalah model Quantum Teaching berbantuan media Powerpoint efektif terhadap hasil belajar IPS siswa kelas IV SDN Srondol Kulon 02.
Based on the results of observations, interviews and learning outcome data, it was found that the learning outcomes were not optimal due to the students’ lack of participation in learning and the inaccurate selection of learning models. This research aims to test the effectiveness of the Quantum Teaching model assisted by Powerpoint media on the social studies learning outcomes of fourth grade students of SDN Srondol Kulon 02. This research is a quasi-experimental research in the form of Nonequivalent Control Group Design. The population of this research is 111 students. The sampling technique was cluster random sampling. Data collection using test and non-test techniques. Hypothesis test results obtained tcount> ttable (3.594>1.993). This shows a significant difference between the application of the Quantum Teaching model assisted by Powerpoint media and the control class. The results of the N-gain test showed that the experimental class was higher than the control class (0.5621> 0.2820). The conclusion of this research is the Quantum Teaching model assisted by Powerpoint media is effective in social studies learning outcomes of fourth grade students of SDN Srondol Kulon 02.
Régimen y riesgo agroclimático de heladas en Lugo, provincia de Lugo, Galicia, España
Authors: Vilatte Carlos A. , Ruiz Nogueira Benigno 
Published: February 2021

El objetivo de este trabajo fue conocer el régimen y riesgo agroclimático de heladas, por su época de ocurrencia y tipo genético, analizar su peligrosidad sobre los cultivos, y observar la tendencia en el período libre de heladas en los últimos 10 años (1996-2005), respecto del período 1975-1995, en Lugo. Se dispuso de un registro histórico de temperaturas mínimas, medidas en el abrigo meteorológico, de treinta y un años para la localidad de Lugo, Provincia de Lugo (lat.: 43° 03’ N; long.: 7° 30’ O y alt.: 480 m). Los resultados mostraron una mayor frecuencia de heladas primaverales (marzo, abril y mayo) que otoñales (octubre y noviembre). El escaso período libre de heladas, en la zona, puede resultar un impedimento para la difusión de cultivos frutícolas de hueso, debiendo seleccionar aquellas variedades con mayor requerimiento en horas de frío.En la región, la producción hortícola prospera favorablemente, siendo los cultivos más utilizados, Col – Brassica oleracea L - y nabos (nabizas y grelos) – Brassica napus L -, en detrimento de cultivos anuales extensivos, tanto inverno primaverales, como trigo – Triticum aestivum L. o T. vulgare L. -, cebada – Hordeum vulgare L.-, o estivales como maíz – Zea mays L. -, girasol – Helianthus annus L., o soja - Glycine max L.
Dynamic modelling and simulation of a prototype race car in MATLAB/Simulink applying different types of electric motors
Authors: Szíki Gusztáv Áron , Szántó Attila , Mankovits Tamás 
Published: February 2021

AbstractNowadays, vehicles with alternative drives are playing an increasingly important role in road transport. Among the various types of alternative-drives, the most widespread ones are hybrid and electric ones, thanks for the rapid development of modern batteries, and hybrid and electrical systems. The above fact establishes the importance of research on various types of electric motors. The Faculty of Engineering of the University of Debrecen has more than a decade of experience in developing prototype race cars with pneumatic and electric drive. For the more effective and conscious development and racing a simulation program has been developed in MATLAB/Simulink environment for the computation of the dynamic functions of a vehicle moving in a linear path. The program is characterized by a modular structure, so the different structural units (vehicle body, front and rear wheels, power train, motor) are modelled and simulated separately. In this study we present models and simulation programs for different electric motor types (series-wound DC and brushless DC motors) in MATLAB/Simulink and apply them in our vehicle dynamics simulation program. From the simulation results the performance of a vehicle – driven by an electric motor – can be predicted in a race situation, consequently the most suitable motor with the optimal characteristics can be selected to it.
Impaired disengagement of attention from computer-related stimuli in Internet Gaming Disorder: Behavioral and electrophysiological evidence
Authors: Heuer Anna , Mennig Manuel , Schubö Anna , Barke Antonia 
Published: February 2021

AbstractBackground and aims: Attentional biases contribute to the maintenance of addictive behaviors. For the problematic use of online gaming – recognized as Internet Gaming Disorder (IGD) – first evidence points to a bias towards in-game stimuli. This study aimed to provide behavioral and electrophysiological evidence for a generalized bias towards computer-related stimuli, and to identify the specific attentional processes contributing to this bias: facilitated attention deployment, impaired disengagement or failed suppression. Method: Twenty participants with IGD and 23 casual gamers performed a visual search task with photographs of real-world objects. Either the target or a to-be-ignored distractor was addiction-relevant (computer-related), whereas all other items were addiction-irrelevant (related to cars or sport). Event-related potential components associated with facilitated attentional deployment to the target (NT), its post-selection processing (SPCN), and suppression of irrelevant information (PD) were analyzed. Results: Unlike casual gamers, gamers with IGD exhibited prolonged reaction times and increased SPCN amplitudes for computer-related stimuli, reflecting their continued attentional processing. At the individual level, larger SPCN amplitudes were associated with longer delays in reaction time. Discussion and Conclusions: This pattern of results indicates that the disengagement of attention from computer-related stimuli is impaired in IGD. More generally, our findings demonstrate that conditioning processes occur in IGD, and thus open up new avenues for treatment.
THE ESTIMATION OF THE OSSEOUS TISSUE STATE IN DENTAL IMPLANTS SETTING, THEIR FUNCTIONING AFTER ORTHOPEDIC TREATMENT ACCORDING TO CLIMATIC AND GEOGRAPHICAL LOCATION
Authors: Kosogor Yulia , Mamchits Elena , Bragin Aleksandr , Retrunyak Valery , Zubareva Anna 
Published: February 2021

Subject. The study of the osseous tissue state in the dental implants setting, their functioning after the orthopedic treatment according to the climatic and geographical location.
Aim of the study is to estimate the osseous tissue state in the dental implants setting, their functioning after the orthopedic treatment according to the climatic and geographical location.
Methodology. The study regarding the estimation of the osseous tissue state after dental implants setting and subsequent orthopedic treatment taking them into consideration was carried out. The analysis of the medical documentation of 180 patients divided into 6 groups according to climatic and geographical location was made. The study was carried out using KBKT through definite control points to reveal the regularity of the region where the patients live, life conditions and the osseous tissue state.
Results. The analysis of the received data showed that the patients living in Tyumen had the better osseous tissue state, the level of implants osseointegration and stability of the orthopedic constructions than the persons living in the north of Tyumen region.
Conclusion. The level of the osseous tissue state after dental implants setting is different in the groups living in various climatic and geographical conditions including ones of the same region.
ASSESSMENT OF HOMEOSTASIS IN PATIENTS WITH SECONDARY DESTRUCTIVE PAROTITES
Authors: Haritonov Yuriy , Stepanov Il'ya , Kikov Ruslan , Kharitonov Dmitry , Podoprigora Anna 
Published: February 2021

Subject. It is important to develop methods for the diagnosis and treatment of secondary destructive parotitis (SDP) depending on the form of the disease. A working classification of SDP is proposed. The aim of the study is to improve the diagnosis of SDP by developing a program for early detection and differential diagnosis of forms of diseases.
Methodology. The basis of this work was the examination and treatment of 287 patients with various forms of destructive parotitis.
Results. In 103 patients with SDP, the disease occurred as a monoabsccess and with the formation of multiple small-focal abscesses. Changes in indicators of metabolic processes, hemostasis and immunity did not exceed the limits of possible physiological fluctuations. In 62 patients with phlegmonous form of SDP, a significant decrease in total serum protein was observed (by 8%). When combined with SDP and pancreatic pathology, the level of amylase increased 3 to 4 times. Of the 122 patients with SDP 14% were dominated by alterations in the local inflammatory response and the development of general complications in the form of sepsis. There are two main states of life support systems: unstable compensation and decompensation.
Conclusions. Clinical and laboratory manifestations of SDP dictate the expediency of identifying the main forms of the course of the disease which are characterized by certain clinical and laboratory data. Given the real threat of the spread of acute inflammatory process, the development of local and general complications, treatment of SDP should be performed only in a specialized maxillofacial hospital.
COMPARATIVE EVALUATION OF THE DIMENSIONAL ACCURACY OF BRIDGE PROSTHESIS FRAMES MADE USING TRADITIONAL AND DIGITAL
Authors: Vokulova Yuliya , Zhulev Evgenij 
Published: February 2021

Subject. Modern digital technologies make it possible to automate the process of creating bridges to a large extent. First, digital images of the patient's dentition are obtained, then the future prosthesis is virtually modeled and manufactured using a subtractive method using milling and grinding machines or an additive method using a 3D printer. For clinical evaluation of the quality of orthopedic fixed structures made using digital methods, it is necessary to evaluate their dimensional accuracy.
The aim is to conduct a comparative assessment of the dimensional accuracy of bridge prosthesis frames made using modern digital technologies and traditional casting method.
Methodology. The intraoral laser scanner iTero Cadent, the 3D printer Asiga Max UV, the CAD/CAM system KaVo ARCTICA, the software DentalCAD 2.2 Valletta and the computer program MeshLab were used to study the dimensional accuracy of the bridge frames. The Kruskal-Wallis H-test and the Mann-Whitney U-test were used for statistical analysis of the data obtained.
Results. All digital methods of manufacturing bridge frames are distinguishable from the traditional casting method with a significance level of p<0.05 on the basis of dimensional accuracy. The frames of bridge prostheses made by the subtractive method have a higher dimensional accuracy compared to the frames obtained using additive technologies. There were no statistical differences in the dimensional accuracy of milled titanium and zirconium bridge frames.
Conclusions. Based on the data obtained, we concluded that the bridge frames made using modern digital technologies have a higher dimensional accuracy (the average value of the median distance of milled zirconium frames is 0,03067 ± 0,001234 mm, milled titanium frames are 0,03032 ± 0,002698 mm, frames made using additive technologies are 0,03686 ± 0,003068 mm) compared to the bridge frames made by the traditional casting method (the average value of the median distance 0,04342 ± 0,003722 mm), with a significance level of p<0,05 (U-Mann-Whitney criterion =0, p=,002).
THE ESTIMATION OF THE RESULTS OF SOCIAL AND HYGIENIC EXAMINATION OF THE RURAL POPULATION OF THE SOUTH OF TYUMEN REGION
Authors: Lebedev Sergey , Bragin Aleksandr , Safonova Anastasiya 
Published: February 2021

Subject. The study of the sanitary culture of rural population is an information and analytic base for the development and implementation of activities concerning the primary prevention of dental diseases on the territories of southern rural areas of Tyumen region.
The aim is to estimate the social and hygienic level of skills in the population of Jurga district of Tyumen region.
Materials and methods. The investigations were carried out using expeditionary and exploratory method. 200 men living in Jurga district took part in the questionnaire. The standardized questionnaire regarding the oral health developed by WHO experts (2013) was used. All men were divided according to the gender and age [at the age of 12 (n=69), at the age of 15(n=31), at the age of 35-44 (n=67), at the age of 65 and older (n=33)]. According to the data received the portrait concerning social and hygienic skills was made up for each age group. The results were processed using analytic program «Vortex 10.7.3».
Results. The analysis of the received data revealed the low level of social and hygienic skills in the population of all aged groups living in Yurga district. The conducted medical and sociological questionnaire of population showed that the significant part of the population does not have knowledge of the choice of hygienic objects as well as the insignificant volume of skills of the individual oral hygiene. Also they do not have the necessity of carrying out preventive measures, dynamic check up of the oral health. Besides, the education of the population also plays a great role in the prevention of dental diseases. The tendency to the high motivation of carrying out the preventive measures was revealed in the persons having high education.
DENTAL STATUS FEATURES OF PATIENTS WITH CHRONIC MYELOID LEUKEMIA
Authors: Yanbuhtina Kamilla , Kabirova Milyausha , Kabirov Bulat 
Published: February 2021

Subject. At the present stage of society development cancer incidence remains among the most pressing medical and social problems. In the structure of oncopathology a special place is occupied by malignant neoplasms of lymphoid and hematopoietic tissues which include chronic myeloid leukemia (CML). In some patients, the disease can appear with dental symptoms associated with a decrease in local immunity of the oral cavity — the appearance of aphthae, plaque on the oral mucosa, angular cheilosis, bleeding gums, dry mouth. It is diagnostically significant that such oral symptoms may precede general clinical symptoms, that is, they can be considered as early symptoms of CML. In addition, their severity often prompts a patient with CML to see a dentist. Thus, the importance of the professional knowledge of the dentist in general clinical and dental symptomatology of CML, the correct routing of the patient for further clinical and laboratory examination, treatment and observation by a hematologist is undeniably high.
The goal is to study and identify the features of the dental status of patients with chronic myeloid leukemia.
Methodology. The work carried out a comprehensive assessment of the state of the oral cavity and the need for dental treatment of patients with chronic myeloid leukemia in which patients with preserved systemic status and patients with chronic myeloid leukemia took part.
Results. According to the results of a complex dental examination and the calculation of the main dental indices, patients with CML were found to have serious disorders in the state of their oral health.
Conclusions. Patients with CML showed a high need for various types of dental care, primarily in conservative oral cavity sanitation, periodontal treatment and rationalization of oral hygiene protocols (professional and individual).
PROPOSTA DE IMPLANTAÇÃO DE SISTEMA DE GESTÃO AMBIENTAL SEGUNDO A NORMA ABNT NBR ISO 14001:2004 - um estudo de caso.
Authors: Pereira Joyce Mariana , Silva Fernanda Raggi Grossi 
Published: February 2021

O presente artigo abordou a temática da implantação do Sistema de Gestão Ambiental - SGA - baseando-se na norma ABNT NBR ISO 14001:2004 como sendo determinante para o sucesso das indústrias modernas. Foi considerada como estudo de caso, a Usinagem Beta que buscou reunir informações para um SGA fundamentando na norma ABNT NBR ISO 14001:2004. Buscou-se responder quais os aspectos devem ser observados na implementação de um SGA em uma indústria de usinagem de médio porte que busca a certificação ABNT NBR ISO 14001:2004. O objetivo consistiu em descrever as práticas para a implantação de um SGA baseado na ABNT NBR ISO 14001:2004 em uma empresa de usinagem. Realizou-se uma pesquisa exploratória e descritiva, expondo as características da organização observada em relação às práticas relacionadas do SGA como parâmetro para a proposta do SGA na empresa de usinagem Beta. Concluiu-se que as empresas devem determinar uma equipe responsável pela implantação do SGA integrando todos os setores da empresa, especialmente a alta direção potencializam os resultados para a implantação do Sistema de Gestão Ambiental. Palavras-chave: Sistema de Gestão Ambiental; Indústria; Sistema de Gestão Ambiental; ABNT NBR ISO 14001:2004.
Experiments and Computational Research of Biomass Pyrolysis in a Cylindrical Reactor
Authors: Mitrofanov A. V. , Mizonov V. E. , Vasilevich S. V. , Malko M. V. 
Published: February 2021

The article features an experimental study of thermally thin biomass samples (beech wood particles 17×8×6 mm) pyrolysis in a laboratory scale batch reactor. The reactor was a cylindrical steel body with internal diameter of 200 mm and height of 500 mm. The temperature of a lateral surface of the cylinder during the experiment was being kept constant (550 °C) due to electrical heating. The initial loading of the apparatus was about 4 kg with moisture content of about 14 % by weight. During the experiment, the temperature values of the material being pyrolyzed were recorded at two points of the radial coordinate, viz. at the wall of the apparatus and on its axis. A one-dimensional numerical model of the nonstationary process of biomass conversion (heat and mass transfer in combination with the Avrami – Erofeev reaction model) has been proposed and verified. The reactor is represented as a set of a countable number of cylindrical layers, considered as cells (representative meso-volumes) with an ideal mixing of the properties inside. The cylindrical surfaces that form cells are considered to be isothermal. The size of the cells is chosen to be sufficiently large in comparison with the individual particles of the layer, which makes it possible to consider the temperature field inside the cell volume as monotonic. The evolution of the temperature distribution over the radius of a cylindrical reactor is determined on the basis of a difference approximation of the process of non-stationary thermal conductivity. The calculated forecasts and experimental data showed a good agreement, which indicates the adequacy of the developed mathematical model of pyrolysis and makes it possible to recommend it for engineering calculations of biomass pyrolysis. This model can also be useful in improving the understanding of the basic physical and chemical processes occurring in the conditions of biomass pyrolysis.
О выразительных возможностях отдельных расширений четырехзначной логики Белнапа
Authors: Девяткин Леонид Юрьевич 
Published: February 2021

Статья посвящена замкнутым классам функций четырехзначной логики. Мы представляем следующие результаты:
(1) Базовые операции логики, полученной расширением четырехзначной алгебры Де Моргана оператором конфляции, порождают замкнутый класс всех функций, которые одновременно сохраняют классические истинностные значения и самодвойственны относительно конфляции. Этот класс предполон в классе всех функций, сохраняющих классические истинностные значения.
(2) Между замкнутым классом, порожденным базовыми операциями логики истины фон Вригта и классом всех функций, сохраняющих классические истинностные значения, лежит в точности два замкнутых класса. Каждый из них представляет собой класс всех функций, одновременно сохраняющих классические истинностные значения и одно из трехэлементных надмножеств множества классических истинностных значений.
(3) Базовые операции тетравалентной модальной логики, полученной расширением четырехзначной алгебры Де Моргана оператором необходимости, порождают замкнутый класс всех функций, которые одновременно сохраняют классические истинностные значения, самодвойственны относительно конфляции, а также сохраняют оба трехэлементных надмножества множества классических истинностных значений. Мы показываем, что данный класс предполон в классе всех функций, которые одновременно сохраняют классические истинностные значения и самодвойственны относительно конфляции. Кроме того, мы демонстрируем, что между этим классом и замкнутым классом, порожденным операциями логики истины фон Вригта, находится в точности один замкнутый класс.
Таким образом мы получаем семиэлементную решетку, состоящую из всех возможных четырехзначных расширений тетравалентной модальной логики, которые сохраняют классические истинностные значения.