bluuebunny/crossref_metadata_2025 huggingface dataset:
Identification of the Gaps between Actual Performance and Expected Performance of English Teachers at Elementary Level
Authors: Marral Muhammad Qasim Javed , Lodhi Dr. Muhammad Arfan
Published: December 2021

Teachers hold central figure in the propagation of effective education in educational milieu. The present study attempted to explore the key performance indicators (KPIs) of English teachers working in government schools at elementary level of education. The KPIs were identified and determined by examining the gap between their existing performance and their expected level of proficiency. The study focused its attention to evaluate the gap in English teaching domain only. The data was collected and analyzed quantitatively in this survey oriented descriptive research. A total number of 200 students and 40 teachers were restricted as the sample of the study taken from 04 tehsils of district Bahawalpur. Furthermore, data was collected by developing and administering 02 instruments i.e. questionnaire and classroom observation. The data taken from observation checklist was quantified to obtain empirical results of the investigation. The findings of the study revealed significantly huge gap between the existing and desired level of teachers’ proficiency. This gap was relatively apparent in teachers’ language proficiencies as well as instructional capabilities. Majority of the teachers couldn’t demonstrate the optimal standards of English teaching due to multifaceted factors. Furthermore, study revealed that there is dire need of target oriented instructional workshops and teacher trainings to be arranged for teachers to get the maximum outcomes.
Political Participation through Inclusiveness: An Exploration of Politics of Ethnic-Discrimination in Nigeria
Authors: Folami Dr. Olakunle Michael , Fasuwon Dr. , Adebayo Adebayo , Olaseinde Olugbenga
Published: December 2021

Political participation is characterized by ethnic-discrimination in Nigeria. Electoral processes and nomination of candidates at election often laced with ethnicity and discrimination. Selection of candidates for political offices usually follows politics of ethnicity. The constitutional provision which ensures equity often suspended whenever candidates were presented for electoral offices. This study examines causes of ethnic consideration as the basis for political participation. This study argues that recognition of every community member would enhance qualitative political participation in Nigeria. Recognition Theory, a social justice theoretical framework, was used in this study to explain concepts such as discrimination, ethnicity and participatory politics, and their centrality to democratic values in Nigeria. The theory provides explanation for the inequalities in political participation such as inaccessibility, disassociation, discrimination, prejudice and non-participation. Qualitative method of data collection was adopted in this study. Unstructured interview guide was designed to collect data from one hundred and twenty-five participants. The participants were selected from the capital of States selected for this study such as Benin, Suleja, Ilorin, Owerri, Ikeja and Osogbo. This paper found that voting patterns were influenced by factors such as ethnicity, favoritism, godfather, bribery and others. It was also found that candidates’ choice for elections is determined by godfather, ethnicity, age, religion rather that a ten-year residency dictated by the constitution. It was concluded that inclusiveness without discrimination such as ethnicity, region, godfather, state of origin and gender could galvanize equal political participation. This paper finally concluded that political participation though inclusiveness can reduce politics of ethnic-discrimination in Nigeria.
The Effect of Corporate Governance Mechanism and Submission Quality of Financial Report on the Financial report Integrity Moderated with Political Connection
Authors: Susilawati Susi , Murwaningsari Etty
Published: December 2021

This study aims to determine the role of corporate governance mechanisms and the quality of financial report submission on financial report integrity by placing political connections as a moderating variable. The research method used is a quantitative method, with the unit of analysis being the company. The sample selection technique is purposive sampling, the selected sample is 43 manufacturing companies listed on the Indonesia Stock Exchange for the 2015-2019 period, so the number of observation data is 215 annual data. The data analysis used is panel data regression. The results of the study indicate that the corporate governance mechanism is not entirely able to provide a positive correlation to improving the integrity of financial statements, one of which is that independent commissioners may not be able to balance the decision-making process and to protect the rights of stakeholders, especially minority shareholders. Political connections are also very important to be a concern because they can influence existing governance, to improve reports with high integrity. This finding is very useful for investors to be careful in understanding the information contained in the financial statements because the corporate governance mechanism and the existence of political connections can affect its integrity. This political connection is often considered to weaken the mechanism of good corporate governance and the quality of the submission of financial reports which in turn can reduce the existence of the high financial report integrity.
Prospects for the Development of Renewable Energy in the Crimean Peninsula
Authors: Guryev Vyacheslav Valerievich , Kuvshinov Vladimir Vyacheslavovich , Yakimovich Boris Anatolevich
Published: December 2021

The Crimean Peninsula is the flagship of the development of renewable energy, as it is not only an actively developing region, but also a resort center. The energy complex of the Crimean Peninsula in recent years has increased due to the construction of new power plants (Balaklava TPP and Tavricheskaya TPP) with a total capacity of 940 MW, as well as the construction of new 220 and 330 kV transmission lines, which ensured that the peninsula’s power supply deficit was covered. A review of the regional development and use of renewable energy sources is carried out. Based on the data obtained, an analysis is made of the problems and prospects for the development of renewable energy in the region. The development of renewable energy for the Crimean Peninsula plays an important role in order to achieve environmental safety and develop the economic potential of the region. The paper substantiates the priority use of renewable energy in the region, as well as the solution of emerging problems with an increase in the share of renewable energy in the total generation. The appearance of excess electricity in the power system and the possibility of balancing the generated power of renewable energy and thermal power plants, while reducing the cost of electricity. Investment attractiveness and active population growth in the region leads to an increase in generating capacity and an increase in the maneuverability of the energy system with a significant impact of RES. The efficiency of renewable energy in the energy system, the world experience in managing renewable energy generation, the actual impact of renewable energy on the energy system in conditions of electricity shortage, and forecast work schedules of the SES wind farm provided by the electric power industry entities in the assigned way are taken into account when forming the dispatch schedule and are accepted at the request of the subject. The available experience of existing SES in the power system of the Republic of Crimea and the city of Sevastopol requires additional research, including through field testing of generating equipment. Further full-scale tests should be carried out under the conditions of a real electric power mode of the power system, which requires the introduction of modern information technologies that ensure the exchange of technological information and the implementation of appropriate control actions. The work is underway to create a regulatory framework for the control of renewable energy source operation.
Study of Microstructure Features and Properties of Metals Obtained by Hot Isostatic Pressing
Authors: Khlybov A.A. , Ryabov D.A. , Anosov M.S. , Belyaev E.S.
Published: December 2021

The aim of this research is to study the features of the structure and properties of alloys obtained using the technology of hot isostatic pressing (HIP) of metal powders. The study was carried out in the temperature range of interruption of the HIP cycle from 670 to 1150 °C on alloys 08Cr18Ni10Ti and Cr12MoV. For processing images of microstructures and assessing their fractal dimension, software has been developed in the MATLAB environment. The results of microstructural analysis of the metals under study showed that complete sintering of powders is observed at a HIP temperature of 1150 °C; at lower temperatures, pores and unsintered spherical particles of metal powder are observed in the microstructure of the alloys. The grain size of alloys obtained by HIP is determined, first of all, by the size of the initial fraction of the metal powder. Based on the results of evaluating the density of alloys obtained at different temperatures of the HIP, a relationship was established between the relative density of the alloy and the process temperature. Based on the results of fractal analysis, the relationship between the fractal dimensionality of the microstructure of the alloy and the HIP temperature and the relative density of the metals under study has been established. The obtained dependences are linear. The error in estimating the relative density from the obtained dependencies is, on average, 5 %. The data obtained in the course of the study make it possible to estimate the density of metals obtained by hot isostatic pressing of metal powders by evaluating the fractal dimension of the microstructure image.
Experimental Complex for Studying the Possibilities of Using Hydroacoustic Sensors in Underwater Vision Systems
Authors: Shirokov V.A. , Milich V.N.
Published: December 2021

A description of a laboratory experimental and measuring complex is given, including a linear aquatic environment in the form of an extended cylindrical reservoir (hydro wave) and an experimental pool equipped with a system for generating test hydroacoustic signals, a set of electroacoustic and acoustoelectric transducers, and a system for amplifying and digitizing received signals. The results of experimental studies of hydroacoustic piezoelectric sensors and the features of the propagation of the waves generated by them in the described laboratory complex are presented. These results include: an assessment of the sensitivity of sensors, an assessment of the frequency characteristics of sensors, a study of the frequency response of a system of two sensors fixed at the ends of a horizontal hydro-wave guide, a comparison of the results of measurements of the frequency response of sensors in a pipe and a pool, a comparison of signal pulling over time in a pipe and a pool, a study of operation sensors in sonar mode. The most significant results illustrating the behavior of hydroacoustic signals and the potential of the measuring complex are the established possibilities for determining the resonance features of electroacoustic transducers and the detail of the characteristics of the reflection of acoustic signals from objects in an aquatic environment. The main investigated characteristics of hydroacoustic sensors are the sensitivity and frequency characteristics of the investigated sensors, the amplitude-frequency characteristics of the system from the transmitting and receiving transducers, and the features of the transducers' operation in the sonar mode. According to the research results, the characteristics of the sensitivity of the sensors and the assessment of the spread of the sensitivity indicators for representatives of the same type of different parties were obtained. The study of the frequency characteristics of the sensors was focused on the study of the dependence of the module and the phase of the sensor resistance on the frequency and on the determination of the resonance characteristics of the sensors. The presence of resonances (resistance minima) and antiresonances (resistance maxima) in several frequency regions was established. When examining the transducers in sonar mode, a glare structure of echo signals from the components of a complex object (a sphere suspended by a thread), separated by time intervals of 12.3 microseconds, was clearly observed. The delay of the signal reflected from the filament in relation to the signal reflected from the front wall of the sphere is due to the distance by two radii of the sphere, covered by the signal reflected from the filament. Carrying out research in two experimental situations (linear hydro wave and experimental pool) allows assessing the degree of adequacy of the results obtained in the sense of comparing similar experiments in different conditions.
Features of Parametric Synthesis of Inductor Generators of Axial-Radial Configuration
Authors: Shaitor N.M. , Gorpinchenko A.V.
Published: December 2021

New approaches to the formulation and solution of problems of parametric synthesis of electric machines of new designs with a concentrated electric and distributed magnetic system are shown. The methods of designing and synthesizing traditional electric machines were mainly focused on machines containing distributed electric stator windings with a concentrated magnetic system. A distinctive feature of generators of the axial-radial configuration is the concentrated electric windings with a distributed magnetic system. As a result, the development of methods for parametric synthesis of machines of new designs refers to the solution of urgent problems. As a result of the analysis of the design stages of new generators, a complex method of parametric synthesis has been developed. At the first stage, a mathematical model of the generator is used, on the basis of which an automated program for its calculation is developed. It implements synthesis based on an incomplete data set, in the direction from electromagnetic loads to the size of the machine. At the second stage, numerical experiments are performed using a mathematical model of the generator, with the determination of the optimization parameter. The calculation is performed according to the matrix of a full-factor experiment, compiled on the basis of the theory of planning experiments. As a result, the range of variation of electromagnetic loads is found, which is close to optimal. At the third stage, statistical processing of the results of numerical experiments, determination of significant factors, and regression analysis with the construction of an optimization model are carried out. The fourth stage is implemented using an optimization procedure based on the Box - Wilson gradient method. It allows you to find an even narrower zone of variation of significant factors, under which the optimization parameter satisfies the specified conditions. The use of complex parametric synthesis makes it possible to significantly reduce the mass of the designed electric machines of new designs in comparison with drum-type inductor machines of the same power. The presented procedure for the complex synthesis and optimization of generators with a concentrated electric and distributed magnetic system will be useful for researchers and designers who do not have sufficient experience in developing machines of such structures.
Efficient Technique on Face Recognition Using CNN
Authors: Rai Vivek
Published: December 2021

Abstract: World is facing a severe health crisis due to the fast transmission of the coronavirus(Covid-19).WHO has issued many guidelines for prevention of the spread of coronavirus. According to WHO, the best way to reduce the spread of coronavirus is by wearing mask in public and crowded areas. In this paper, a 2-stage CNN model is proposed to check whether the people are wearing mask or not. The proposed model is trained and tested on a number of data sets. Keywords: Coronavirus, face detection, data set, CNN, AI
AES Image Encryption (Advanced Encryption Standard)
Authors: Gaur Paavni
Published: December 2021

Abstract: An Image Encryption and Decryption Using AES (Advance Encryption Standard) Algorithm is proposed in the project. Due to increasing use of image in various field, it is very important to protect the confidential image data from unauthorized access. The design uses the iterative approach with block size of 128 bit and key size of 128, 192 or 256 bit. The numbers of round for key size of 256 bits is 14 , for 128 bits is 10 and for 192 bits is 12. As secret key increases the security as well as complexity of the cryptography algorithms. In this paper , an algorithm in which the image is an input to AES Encryption to get the encrypted image and then input it to AES Decryption to get the original image is proposed and explained which will further be implemented by me. The paper shows the study in which a system could be used for effective image data encryption and key generation in diversified application areas, where sensitive and confidential data needs to be transmitted along with the image.
TÜRK MÜZİĞİNİN MEDYASYONU VE SOSYO-KÜLTÜREL YAPI İLE ETKİLEŞİMİ
Authors: GÜNEY Hüseyin , PELİKOĞLU Mehmet Can
Published: December 2021

Türkiye’de kitle iletişim araçlarının etkin kullanımı 1970’li yıllardan itibaren yaygınlık kazanmıştır. Sırasıyla, radyo, sinema, televizyon ve internet insanlığın işitsel ve görsel iletişim tutkusunun yayılım gösterdiği mecralar olmuştur. Bir zamanlar ulus-devletin ideolojik aygıtı olan kitle iletişim araçları, günümüzün teknik/teknolojik olanakları sayesinde, ‘birey’in toplumsallaşabildiği, eğitim gördüğü, olan-bitene tepkisini gösterdiği, moral desteği bulduğu, yaşamını ikame ettireceği gereksinimleri karşılayabildiği, ‘kimlik’ edinebildiği, insan-ötesi iletişim araçlarına dönüşmüşlerdir.Bu çalışmada, kitle iletişim araçlarının sosyo-kültürel etkileşime katkısı, dolayısıyla, Türk Müziğine olumlu/olumsuz etkilerinin tespiti ve analizi için neden-sonuç ilişkisinin kurulması amaçlanmış olup, 1970’lerden günümüze değin tarihsel süreçte Türk Müziği alanında akademik ve kuramsal çalışmalarda ele alınmış olan ve konumuz bağlamında dikkate değer bulunmuş altı temel unsura odaklanılmıştır.Bunlar; 1.‘Medyatif araçlar olarak taş plak, long play (LP), kaset, kompakt disk (CD) ve/veya dijital veri olarak görüntü-ses kayıtlarının toplumun beğenisine sunulması’;2. ‘Müzik endüstrisinin pazarlama stratejileri ve toplumun kabulleri sayesinde söz, beste, görüntülerin toplumun kültürel belleğine yerleşmesi’; 3. ‘Türk müziği ürünlerinin karakteristiklerinin ne olduğunun tartışmaya açılması’; 4. ‘Türk müziğinin geleneksellik/ yerellik/ evrensellik bağlamının akademik çalışmalara konu olması’; 5.’Türk müziğinin sanatsal niteliğinin korunup-gözetilmesinden ziyade, toplumsal olandan siyasal olana, kültürel olandan ekonomik olana devşirilmesine göz yumulması’; 6. ‘Türk müziğinin popülerleştirilmesi çabalarının Türk müziğine zarar veriyor olması’dır.
Determination of the geodetic latitude and height by spatial geocentric coordinates
Authors: Penev P.D. , Peneva E.P.
Published: December 2021

The authors propose to derive the formulas given in [1, 2] for determining the height and latitude based on the Cartesian rectangular coordinates X, Y, Z, giving an accuracy for the geodetic height H of 1 mm for heights up to 50 km and for geodetic latitude B of 0,0001 arc seconds for H < 10 km. The formulas proposed in [1, 2] apply to all values of latitude and longitude (B and L). In [3], we propose two new formulas for H and B. In this paper, it is shown that the formulas proposed in [3] apply to points of ellipsoid surface and points with geodetic latitude of 0° and 90°. For the same formulas proposed in [3], the corrections are derived to ensure an accuracy of H of 1 mm at H ≤ 10 km, which apply to all values of B and L. Basing on the presented geometric conclusions, calculations and analyzes, a new solution for H and B respectively is proposed for given X, Y, Z, which provides an accuracy for H less than 1 mm for H ≤ 100 km and for B of 0,0001 arc seconds for H ≤ 50 km.
Compromiso y educación. Redefinición del aula como contexto de aprendizaje de Daiana Y. Rigo (2020)
Authors: Schlegel Daiana
Published: December 2021

La presente obra se enmarca en el campo de la psicología educacional que, fundamentada en la  investigación científica, realiza aportes a la definición del compromiso académico. Así, desde enfoques o perspectivas socioculturales, se entiende al aprendizaje como un proceso eminentemente social que tiene lugar en las interacciones entre aprendices y las propiedades de ambientes específicos. En este marco, el libro comprende trabajos de reflexión teórica y de experiencias de investigación que se caracterizan por su rigor conceptualy metodológico.
Prácticas de cultura universitaria. El caso del ciclo de formación ciudadana de la Corporación Universitaria Minuto de Dios Sede Bello
Authors: Londoño Uriza Elidio Alexander , Bedoya Bayer Andrés Felipe
Published: December 2021

El artículo analiza las apuestas que el Centro de Educación para el Desarrollo (CED) de la Corporación Universitaria Minuto de Dios (Uniminuto), sede Bello, realiza en materia del ciclo de formación ciudadana. El objetivo es valorar los esfuerzos que esa unidad académica adelanta para reforzar el desarrollo individualy social de sus estudiantes a partir de la apertura de espacios de reflexión ciudadanos, ético-políticos, cívicos, de convivencia y de consolidación de la democracia. El análisis se realiza a partir de los antecedentes que promovieron la creación del ciclo, las bases conceptuales que moderaron el tema de la ciudadanía en el CED, el inicio de las cátedras abiertas de ciudadanía, las líneas temáticas que hicieron parte de esa estrategia, la conformación del ciclo de formación ciudadana, las alianzas estratégicas entre las apuestas de trabajo del CED para potenciar las actividades en materia de cultura ciudadana, y las perspectivas y orientaciones de trabajo del ciclo de ciudadanía. El estudio está respaldado en material primario recolectado del Archivo de Gestión del CED de la Uniminuto, sede Bello, y en bibliografía complementaria de carácter institucional y pedagógico en perspectiva de la educación para el desarrollo (EPD).
MÁQUINAS E ABRASIVOS ARTESANAIS E DE BAIXO CUSTO PARA AFIAÇÃO DE NAVALHAS DE AÇO COM FIO TIPO C, E PROCEDIMENTOS PARA OBTENÇÃO DE CORTES DE 3µm DE ESPESSURA EM RESINA GLICOL-METACRILATO
Authors: Leitão Carlos Andre Espolador
Published: December 2021

As navalhas de aço com fio tipo C, quando bem afiadas, são excelentes para aquisição de cortes em parafina ao micrótomo. Sabendo-se explorar ao máximo o potencial dessas navalhas, é possível inclusive obter cortes de material incluído em resina glicol-metacrilato. Infelizmente, essas navalhas têm entrado emdesuso, pois são de difícil afiação manual, e os bons afiadores de navalha estão cada vez mais escassos no comércio, e são itens muito dispendiosos e de difícil manutenção. Entretanto, muitos laboratórios nãobdispõem de equipamentos modernos e, por limitações de recursos, podem passar por dificuldades naexecução de procedimentos atuais em histologia e citologia. O presente trabalho objetivou desenvolverbmáquinas artesanais e abrasivos alternativos de baixo custo, bem como os procedimentos para a afiação de navalhas de aço com fio tipo C para seccionamento de material botânico incluído em resina glicol-metacrilato utilizando um antigo micrótomo rotativo. Foram construídas duas máquinas: um afiador de navalhas e um polidor de fio de navalha, que foram confeccionados com material de baixo custo, alguns dos quais peças de equipamentos domésticos sucateados. Os abrasivos foram preparados diluindo cera de polir automotiva em água. Os projetos das máquinas, bem como as instruções de afiação e de seccionamento são explicados em detalhe com várias ilustrações. Com os equipamentos, abrasivos e procedimentos utilizados,foi possível aquisição de cortes seriados com 3µm de espessura, de material botânico incluído em resina-glicol metacrilato com mínimas perdas. Os itens e procedimentos descritos foram testados rotineiramente por seis anos e se mostraram plenamente eficazes e confiáveis.
Persistent COVID-19 negative report of a physician in Bangladesh living and visiting in Red listed country with some special precaution followed.
Authors: Nahin Sabrina , Amin Mohammad Ashraful
Published: December 2021

COVID-19 infections have been widespread in Bangladesh subsequently. We
present the example of a 32-year-old Bangladeshi physician who worked in
a hospital and was previously involved in collecting swabs for Covid19
patients, During the pandemic, he also traveled to a red-listed country
and was continuously negative throughout the period.
Stochastic estimation of the distribution of soil water repellency on the soil surface in a humid-temperate forest
Authors: Kajiura Masako
Published: December 2021

Soil water repellency (SWR) increases surface runoff and preferential
flows. Thus, quantitative evaluation of SWR distribution is necessary to
understand water movements. Because the variability of SWR distribution
makes it difficult to measure directly, we developed a method for
estimating an SWR distribution index, defined as the areal fraction of
surface soil showing SWR (SWRarea). The theoretical basis of the method
is as follows: (1) SWRarea is equivalent to the probability that a
position on the soil surface is drier than the critical water content
(CWC); SWR is present (droplets absorbed in >10 s) when the
soil surface is drier than the CWC and absent when it is wetter. (2) CWC
and soil moisture content (θ) are normally distributed independent
variables. (3) Thus, based on probability theory, the cumulative normal
distribution of θ – CWC (f(x)) can be obtained from the
distributions of CWC and θ, and f(0), the cumulative probability
that θ – CWC < 0, gives the SWRarea. To investigate whether
the method gives reasonable results, we repeatedly measured θ at 0–5 cm
depth and determined the water repellency of the soil surface at
multiple points in fixed plots with different soils and topography in a
humid-temperate forest. We then calculated the CWC from the observed
θ–SWR relationship at each point. We tested the normality of the CWC
and θ distributions and the correlation between CWC and θ. Then, we
determined f(x) from the CWC and θ distributions and estimated
the SWRarea on each measurement day. Although CWC and θ were both
normally distributed, in many cases they were correlated. Nevertheless,
the CWC–θ dependency had little effect on the estimation error, and
f(x) explained 69% of the SWRarea variability. Our findings show
that a stochastic approach is useful for estimating SWRarea.
Choice, Purchase Decision and Post-Purchase Dissonance: The Social Media Perspective
Authors: Mensah Kobby , Boateng Dankwah Justice , Mensah Gilbert , Masope-Crabbe Judith Aku
Published: December 2021

Social media tools have emerged as an imperative source of information for customers. However, the relationship between information volume on social media and consumer choice quality remains blurred in literature. The study sought to examine the relationship between choice overload on social media and product choice quality, and how choice quality influences post-purchase dissonance. The study employed a positivist research paradigm and an explanatory design to examine the relationship between the various constructs. Using a purposive sampling method, Responses from 249 respondents were quantitatively analyzed.  Structural equation modeling (SEM) was utilized. The outcome revealed a direct significant effect of choice overload on poor choice quality and a strong positive association between choice quality and post-purchase dissonance using social media tools. The distinctiveness of the study adds to the existing literature by extending the current understanding of post-purchase dissonance and consumer behavior in general.
The Impact of the Ongoing Pandemic on Digital Finance Transactions: An Empirical Analysis
Authors: Agarwal Khushbu , Nalwaya Nidhi
Published: December 2021

The ongoing pandemic has resulted in a disruption of the life of all citizens and impacted all the spheres, more so the financial system because the Pandemic and its aftermath has shut all economic activity except those which as per the government directives are considered the most essential. This has deeply impacted private consumption, external trade as well as investment in the economy. Accordingly, both in retail stores and e-commerce orders, a common strand is that many of the consumers are now paying bills via digital payment mechanisms and taking contactless delivery of goods wherever possible. “Digital financial transaction systems, e-wallets and apps, online transactions using e-banking, usage of Plastic money (Debit and Credit Cards), etc. have recorded a substantial increase in demand during the crisis”. The objective of the present paper is to examine and analyze the digital finance transactions in selected cities during the ongoing pandemic
Supercritical CO2 extraction of oils from red grape varieties: Yields and extraction parameters
Authors: Malicanin Marko , Milanovic Jelena , Zizovic Irena , Ivanovic Jasna , Milovanovic Stoja , Rakic Vesna
Published: December 2021

In this work, the extraction by supercritical carbon dioxide of grapeseed oil
from five red grape varieties was investigated. Apart from an indigenous
variety Prokupac, as the domestic, and Merlot and Cabernet Sauvignon, as
international grape varieties the most represented in the Republic of
Serbia, Pinot Noir and Gamay were studied as well. Extraction conditions
were: temperature of 50?C, 250 bar pressure, and 0.3 kg/h flow rate of CO2.
It was shown that the extraction kinetics of international grape varieties,
mutually similar differ significantly from the domestic one. The obtained
oil yields were in the range of 8.3% w/w (Gamay) to 10.4% w/w (Pinot Noir)
for the international varieties and 5.0% w/w for the domestic variety. The
mathematical model ?Sovova? was applied to define transport parameters
regulating the oil mass transfer inside the seed particles and determine the
agreement between experimental and model curves. The interpretation of
results took into account the differences of grade seed morphologies (outer
surfaces and inner layers) which was investigated by SEM analysis.
Physico-chemical characteristics of geothermal water in Tulare near Medvedja
Authors: Maric Andjelina , Pavlovic Tomislav , Mirjanic Dragoljub
Published: December 2021

The paper presents general characteristics and legal regulations for the use
of thermomineral waters in Serbia, provides information on the regional
position and geological characteristics of Tulare near Medvedja, the springs
of water in Tulare and the methods of testing the physical and chemical
characteristics of water in Tulare are described. In addition, the results
of measuring the temperature, hardness, acidity, and chemical composition of
water in Tulare are given. The results of the measurements showed that the
water in Tulare belongs to homeothermal waters, that is soft to very soft,
slightly acidic, and has an increased amount of Na, Ca, K and Mg, and also
Sr, B, Li, P, As and Hg in small quantities. The water from the spring in
Tulare is not suitable for drinking. To determine the balneological utility
of the water in Tulare it is necessary to carry out appropriate drilling and
further examine the physical, chemical, and balneological properties of this
water.
Systematic Review and Meta-analysis of the Association Between Metabolic Syndrome and Androgenetic Alopecia
Authors: Qiu Yueqi , Zhou Xingyu , Fu Siqi , Luo Shuaihantian , Li Yaping
Published: December 2021

The association of androgenetic alopecia with metabolic syndrome has been investigated in several studies, with conflicting results. We conducted a meta-analysis to quantitatively evaluate the risk grade of metabolic syndrome and the metabolic profile in patients with androgenetic alopecia compared with controls. In total, 19 articles (2,531 participants) satisfied the inclusion criteria. The pooled odds ratio for the prevalence rate of metabolic syndrome between the group with androgenetic alopecia and controls was 3.46 (95% CI 2.38–5.05; p < 0.001). Female sex, early onset, and African ethnicity were associated with an increased risk of metabolic syndrome. Furthermore, patients with androgenetic alopecia had significantly poorer metabolic profiles, such as body mass index, waist circumference, fasting glucose, blood lipids, and blood pressure. It is important for physicians to screen metabolism-related indicators in patients with androgenetic alopecia. More rigorously designed studies and larger sample sizes are required in future studies.
Characterization of Classical Flexural and Nummular Forms of Atopic Dermatitis in Childhood with Regard to Anamnestic, Clinical and Epidermal Barrier Aspects
Authors: Hüppop Folke , Dähnhardt-Pfeiffer Stephan , Fölster-Holst Regina
Published: December 2021

Nummular (coin-shaped) and classical (flexural) atopic dermatitis differ morphologically, but no other distinguishing features are known. The aim of this study was to determine differences and similarities of both variants in children. Detailed interviews, clinical examinations, biophysical measurements and electron microscopic analyses were performed on 10 children with nummular atopic dermatitis, 14 with classical atopic dermatitis and 10 healthy controls. Nummular atopic dermatitis affected more boys than girls and manifested less frequently within the first year of life than classical atopic dermatitis. Localization, distribution and morphology of the eczema varied more over time, and expression of keratosis pilaris was more severe in children with nummular atopic dermatitis. Both disease groups showed reduced hydration, increased transepidermal water loss and reduced intercellular lipid lamellae in lesional skin areas compared with non-lesional areas. These findings underline the separate classification of both variants. Further research is necessary to investigate the potential of diverging therapeutic approaches.
Bark pitch in the Early Neolithic of Central Europe
Authors: Kotova Nadezhda , Stadler Peter , Goslar Tomasz
Published: December 2021

The Linear Pottery people in 5670-5000 BC at the Brunn sites in Austria produced birch and beech bark pitches. Big globular vessels and closed high bowls could have been containers for the production and storage of this substance. Miniature vessels with a handle for hanging had contained small portions. Bark pitch as an adhesive for the repair of pottery and in the construction of big idols is also testified, as is the application of this material in decoration of vessels and idols, where bark pitch was a matrix for inlaying  with grains or stones and creation of a contrasting black colour in linear ornamentation. Radiocarbon dating of bark pitch now is one of the most reliable materials for age determination of the Neolithic objects.
Logboat Discovered in Lake Lubanowo, Western Pomerania
Authors: Kontny Bartosz
Published: December 2021

The paper presents a logboat found by an expedition from the University of Warsaw in Lake Lubanowo (northwestern Poland) during an underwater archaeological survey in 2020. It is the first logboat made of beech wood (Fagus sylvatica) registered in the area of Poland. The conventional radiocarbon date is 2350±30 BP; thus, the vessel may be attributed to the Jastorf or Pomeranian culture, as it was found in the border area between the territories of both units. Only a few logboats are known from the period preceding the Middle Ages in Poland. Other untypical traits are a transom, and a carefully formed beak-shaped bow. In the prow there is a rectangular hollow with a circular perforation inside of unclear function. One may consider it a fastening of an outrigger or other kind of floating attachment but also perhaps that the bow slot was intended either for a figurehead, for mooring, or to hold a torch during night-time fishing, or even functioned as a ‘stick-in-the-mud’ – type anchor.
Studying macrozoobenthos community and assessing the ecological status of the Tandzut River for improving hydrobiological monitoring system in Armenia
Authors: Dallakyan Marine R. , Asatryan Vardan L.
Published: December 2021

The improvement of water management calls for action in the Republic of Armenia. Nowadays, the development of the hydrobiological monitoring approaches and procedures is the main goal. However, a lack of knowledge on the background conditions prevents further activities of revaluating of the methods used for water monitoring in Armenia with the EU WFD principles. Following the results of baseline studies conducted in the Debed River system, it was concluded to investigate small tributaries in order to find the most relevant and the best available site in the drainage basin. The study aims to analyse the community of benthic macroinvertebrates of the Tandzut River. We suggest the Tandzut River as a relevant substitution for the recent best available site in the area due to the ecological status of the upper reaches of the Tandzut River, which is by one category higher than the recent best available site of the Pambak River system according to BMWP index.
Spoil heaps in Safonovo, Smolensk region: changes in vegetation cover 20 years later
Authors: Tkacheva Ekaterina V. , Galkina Maria A. , Stogova Aleksandra V.
Published: December 2021

Biodiversity conservation is one of the most important problems facing contemporary botany. These issues are especially relevant in anthropogenic areas with disturbed or even destroyed vegetation cover. For the first time we studied overgrowth of spoil heaps near lignite mines in the town of Safonovo, Smolensk oblast. Geobotanical descriptions were carried out in the territory of the three spoil heaps, 88 species of vascular plants were found, among which meadow and meadow-forest species prevail, and six species are invasive for Smolensk oblast.
Dynamics of gamma diversity and abundance of diurnal butterflies (Lepidoptera, Papilionoformes) in the Nizhny Novgorod Region (Russia) under anthropogenic changes in landscapes over the last hundred years
Authors: Korb Stanislav K.
Published: December 2021

The hundred-year dynamics of gamma diversity and butterflies’ abundance have been assessed for the first time in Russia for the Nizhny Novgorod Region. According to analyzed data, we forecast that no significant change in the number of 104 species of butterflies is expected, the number of 33 species in the near future is likely to increase, and the number of 11 species will continue to decline in the near future. A decrease in abundance of 23 steppe and arcto-boreal species is also expected. The reasons for the decrease in the number of species are considered, supported by the long-term monitoring dataset. Extrapolation of our conclusions for Russian regions with similar conditions (Kirov, Ivanovsk, Vladimir, Kostroma, Penza, and Ulyanovsk regions and the Republics of Mari El, Chuvash, and Mordovia), taking into account the natural conditions of these areas, seems applicable and promising.
Metodiske og metodologiske vurderinger ved bruk av videoobservasjoner i forskning på læringskontekster
Authors: Tverbakk May Line Rotvik
Published: December 2021

This chapter discusses methodological assessments using video in research on learning contexts. Depending on the purpose of the research, the use of video observations can provide opportunities for more precise and accurate images of what is happening in the learning contexts than what one can get by simply observing with the naked eye. Video observations can provide access to important information regarding the actions of individual actors and can also contribute to the exploration of more complex forms of interaction in teaching, both verbal and non-verbal. Accurate video observations enable access to details in interaction that the actors are not necessarily aware of in the social context. Video observations, technically speaking, can be regarded as very reliable, because the observations can be analyzed independently by the researcher responsible for the data collection. At the same time, it may be relevant to raise questions about whether the researcher’s choice of focus is more aimed at the researcher’s interests, rather than the situation as it is experienced. The purpose of this chapter is to discuss methodological issues related to the use of video observations in research.
Etiske aspekter ved videoforskning i et lite miljø
Authors: Ráhka Sandra Nystø
Published: December 2021

Ethical research is more than following ethical guidelines and gaining consent for your research project. The more complex and often unpredictable ethical issues often only arise once out in the field. The purpose of this chapter is to discuss such ethical dilemmas. The point of departure is a research project where video data of various learning activities was employed to develop knowledge about teaching practice in Sámi education. This is a limited but complex research context as Sámi education can happen in different forms and with various numbers, sometimes quite small, of students from school to school. Such a small research context requires thorough ethical consideration and makes ethical dilemmas extra pertinent. From the very beginning it was clear that special consideration had to be made in terms of recruitment, consent, confidentiality and researcher positioning. The aim of this chapter is to discuss the considerations that had to be made to ensure an ethically responsible data collection. We experienced the national ethical guidelines to be a good starting point for this. In addition we benefited from central aspects of Indigenous methodologies. Indigenous methodologies are fundamentally ethical ways to do research. Knowledge about research in Indigenous contexts can lead to a more ethically responsible research, regardless of research field.
Visuelle vendinger i videoanalyse: Transkripsjon i møte med barnehagens marginaliserte og målbundne materialiteter
Authors: Telnes Trine
Published: December 2021

This chapter is a methodological and ethical examination of the following research question: How does one transcribe and analyze the presence and practices of the kindergarten’s youngest children, and other human and non-human actors, in a way that shows their agency and contributions? Video recording is a common method of data generation in social science research and poses the challenge of bringing the audiovisual data into academic texts. Traditionally, video recordings are transformed into pure textual representations called transcription. In particular, it is often the audible speech acts that inform the transcription and analysis, at the expense of the visuals in the video recordings. The embodied, experiential, aesthetic, material and multimodal can be difficult to present through written language alone. The significance of materiality, nonverbal behavior and bodily interaction is enhanced with one- and two-year-old children, whose expressions are often dominated by the nonverbal. Through examples from pedagogical video research in kindergarten, the author explores how different ways of transcribing and analyzing video can visualize the presence, interactions, and practices of the youngest children, the kindergarten teachers and other actors. A visual turn toward poetic video-transcription, multimodal transcription, and a hybrid between drawings and transcription the researcher has named ‘cartoon transcription’, helps to limit marginalization of the different actors and their multifaceted contributions. Breaking the hegemony of the word over the visual can make bodily, spatial, and material resources visible. A fusion of words and images can produce new forms of knowledge, contribute to a high epistemological standard and provide transparency.
Video-stimulated recall som datainnsamlingsmetode
Authors: Lysberg Julie
Published: December 2021

This chapter aims to present the data collection method video-stimulated recall (VSR) by describing what the method entails, what kind of data it can provide, and how it can be carried out in qualitative research. The method is based on video observation with a subsequent interview, where video sequences from natural situations are used to support reflections and dialogue. The focus will be on opportunities and the types of data the method provides access to and will simultaneously shed light on methodological considerations related to the method’s use. VSR is an advanced interview technique based on video observation with a subsequent interview. Selected sequences from the original situation are used to support the informant’s recall of thoughts in, and reflection on, the situation. The method has taken different forms based on different research interests in different research contexts. There is, therefore, no straightforward procedure or template for how to conduct a stimulated recall study. By presenting a detailed description of the data collection process as it was carried out in one project, the chapter seeks to understand the data collection method. A selection of empirical data will be presented to exemplify the types of data this approach can provide.
Klasseromsinteraksjon gjennom kameralinsen: En videobasert studie av lærers relasjons- og emosjonsarbeid i klasserommet
Authors: Tollåli Cathrine Arntzen , Rusk Fredrik , Nilsberth Marie
Published: December 2021

There is currently widespread agreement that creating positive student–teacher relations is important for learning and an educational goal in itself. The aim of this chapter is to investigate how teachers’ relational and emotional work in the classroom is interactionally accomplished. Based on a conversation analytic and video-based study of plenary teaching, we show how teachers in the classroom balance control and progression in learning activities with relational considerations. In the analyzed examples we see how shifting between institutional and interpersonal frames of interaction are accomplished swiftly and in cooperation with the students. An interpersonal focus creates moments of emotional sharing that seems crucial in classroom interaction. By using video, we are able to describe facial expressions, bodily orientation and gaze and it is clear that teachers’ relational and emotional work to a high degree is done non-verbally. The chapter demonstrates how video-based and descriptive studies of classroom interaction can shed light on relational and emotional aspects of teachers’ professional practice and help teachers develop interactional competence that can result in more engaged and dynamic classrooms.
Accuracy in Determining Aircraft Position by Terrestrial Radio Navigation
Authors: Hajiev Chingiz , Sametoglu Alper Mehdi
Published: December 2021

The main objective of terrestrial radio navigation is position determination. In this study, the accuracy of the distance measurement, distance difference measurement, and integrated angle measurement/distance measurement terrestrial radio navigation methods is investigated. in order to calculate the position errors, simulations for the aircraft flight dynamics were carried out, and the obtained position values were compared with the actual values. The aircraft position determination methods were evaluated in the sense of accuracy. The position determination method with better accuracy was determined by comparing the absolute errors of the examined methods. Simulation and error analysis shows that the distance difference method is superior and gives more accurate position results. It was observed that the distance measurement method errors were smaller than the errors of the integrated angle measurement/distance measurement method.