bluuebunny/crossref_metadata_2025 huggingface dataset:
Determination of Wind Velocity Projections Taking into Account Measurements of Airspeed, Angles of Attack and Sideslip
Authors: Korsun O. N. , Om M. H. , Latt K. Z.
Published: October 2021

The paper deals with the problem of estimating the projections of the wind velocity in flight. The proposed method allows to obtain estimates for three projections of wind speed in the normal Earth coordinate system using data from the satellite navigation system, as well as on-board aerometric measurements of airspeed, angles of attack and glide. The main idea underlying the method is that satellite measurements of three aircraft velocity projections relative to the Earth’s coordinate system are very accurate (errors usually do not exceed 0.2 m/s). This makes it possible to use satellite velocity measurements as a kind of reference, just as in practical metrology, in order to assess the errors of measurement tools, they are compared with a standard, that is, a significantly more accurate measurement tool. In order to implement this approach not in a metrological laboratory, but on board an aircraft, it is proposed to use the relationships known from the flight dynamics between the velocity projections in the Earth’s and associated coordinate systems, the angles of attack and glide, and the wind speed. Then, the three wind speed projections are assigned unknown parameters, which are found using parameter identification. It is assumed that the wind has a constant speed and direction in the processed section of the flight. The accuracy characteristics of the proposed algorithm were evaluated based on the data obtained on the flight simulator of a modern training aircraft. In the course of simulation, random measurement errors were generated at the levels corresponding to the flight experiment. The influence of the type of maneuvers on the accuracy the three wind speed projections estimates was also studied. It is shown that for all considered maneuvers, that is "barrel", "snake", stepwise inputs, the errors in estimating the horizontal components of wind speed generally do not exceed 5 %, the vertical component 10 %, with the duration of the sliding processing interval of 0.5 and 1.0 s, which allows not only to estimate the constant wind speed, but also to track its change.
Bi-combustion synthesis technique for the reduction of crystallite size of nanophosphors - a modified version
Authors: Vikas Dubey D. S. Kshatri, Shubhra Mishra,
Published: October 2021

Nanophase materials, in recent times, have attracted many a researcher all over the world, on account of their exceptionally high efficiency in terms of morphological and optical behavior. In the nano-range order, various physical and chemical methods are employed to produce materials commercially, but the reported methods owing to their own physical conditions, limit the crystallite sizes to a certain nano-order. To prevail over this size-related limitation, a new modified bi-combustion synthesis technique (B-CST) has been introduced, which aids inthe formation of nanomaterials, with an average size of 10-20 nm, without using any ball milling process. In order to scrutinize the crystallite sizes of SrAl2O4: Eu2+, Dy3+ phosphors synthesized by CST and B-CST, the X-ray diffraction (XRD) technique is used to determine the crystalline phase only while high-resolution transmission electron microscopy (HRTEM) is used, which is the most sought-after method world-wide and is vigorously used to determine the crystallite size.
Absence of Reported cases of Microsporum ferrugineum,
Trichophyton violaceum, and Trichophyton schoenleinii
in South Korea
Authors: Park Kyung Duck , Lee Weon Ju
Published: October 2021

Dermatophytosis is a skin disorder caused by dermatophytes. Dermatophytes isolated in South Korea include Trichophyton (T.) rubrum, T. mentagrophytes, T. verrucosum, T. tonsurans, T. violaceum, T. schoenleinii, Microsporum (M.) canis, M. ferrugineum, M. gypseum, and Epidermophyton floccosum. T. tonsurans was first found in South Korea in 1992. In contrast, there have been no recent reported cases of T. violaceum, T. schoenleinii, and M. ferrugineum in South Korea. Population mobility, changes in human lifestyles, development of the healthcare system, and the introduction of antifungals have brought about dermatophyte evolution in the skin microenvironment. We have reviewed the cases of dermatophytosis caused by M. ferrugineum, T. violaceum, and T. schoenleinii reported both in South Korea and globally.
ANALISIS SITASI PADA JAMP: JURNAL ADMINISTRASI DAN MANAJEMEN PENDIDIKAN, UNIVERSITAS NEGERI MALANG, 2018-2020
Authors: Gunawan Imam
Published: October 2021

Abstract: The level or number of citations for a journal and/or article is the main indicator for measuring the quality of a publication (paper). The purpose of this research is to determine the distribution of citations in JAMP: Journal of Educational Administration and Management. This research is included in research or studies on bibliometric analysis. The data source for this study is meta-data obtained from the JAMP: Jurnal Administrasi dan Manajemen Pendidikan, data citation download at Google Scholar, using the Publish or Perish 7 software, over a period of 3 years (2018-2020). Meta-data with the PoPCites.ris file format, processed with Publish or Perish 7 software, produces a description of the journal citation. The data is extracted into Microsoft Excel file format. The results of the analysis show that this journal has a citation level of 388. This article presents the 10 articles with the most citations. In addition, it also discusses topic trends in this journal in the last 3 years, as well as predictions of future article trends. Keywords: citation analysis; education management; educational leadership; education supervision; publish or perish. Abstrak: Tingkat atau jumlah sitasi suatu jurnal dan/atau artikel merupakan indikator utama untuk mengukur kualitas suatu terbitan (paper). Tujuan riset ini adalah untuk mengetahui sebaran sitasi pada JAMP: Jurnal Administrasi dan Manajemen Pendidikan. Riset ini termasuk dalam riset atau studi tentang bibliometric analysis. Sumber data studi ini adalah meta-data yang diperoleh dari unduhan data sitasi JAMP: Jurnal Administrasi dan Manajemen Pendidikan di Google Scholar, dengan menggunakan software Publish or Perish 7, dalam kurun waktu 3 tahun (2018-2020). Meta-data dengan format file PoPCites.ris, diproses dengan dengan software Publish or Perish 7, menghasilkan sebuah hasil deskripsi tentang sitasi jurnal. Data tersebut diekstrak ke dalam format file Microsoft Excel. Hasil analisis diketahui bahwa jurnal ini memiliki tingkat sitasi sebanyak 388. Artikel ini menyajikan 10 artikel terbanyak sitasinya. Selain itu, juga dikupas tren topik di jurnal ini dalam kurun 3 tahun terakhir, serta prediksi tren artikel pada masa mendatang. Kata kunci: analisis sitasi; manajemen pendidikan; kepemimpinan pendidikan; supervisi pendidikan; publish or perish.
SUPERVISI KEPALA SEKOLAH DAN HUBUNGANNYA DENGAN PENGUASAAN KOMPETENSI GURU SMK
Authors: Putri Deby Corina , Burhanuddin Burhanuddin , Wiyono Bambang Budi
Published: October 2021

Abstract: This research was conducted in order to know the level of supervising activities of the headmaster of State Vocational Schools in Malang City, the level of mastery of the competency of State Vocational School teachers in Malang, and the level of the relationship between the supervision of the headmaster and the mastery of State Vocational School teachers' competency in Malang. In this study the approach used is a quantitative approach and using a correlational research design. Based on the results of the analysis on the data obtained shows that the supervision activities of the headmaster of State Vocational Schools in Malang are included in the medium qualifications, the mastery of teacher competencies in the State Vocational Schools in Malang are included in the medium qualifications, and there is a positive and significant relationship between the supervision of the headmaster and the mastery of competencies State Vocational School teacher in Malang City. Keywords: supervision; mastery; competence Abstrak: Penelitian ini dilakukan agar dapat diketahui tingkat kegiatan supervis kepala sekolah SMK Negeri di Kota Malang, tingkat penguasaan kompetensi guru SMK Negeri di Kota Malang, dan tingkat hubungan supervisi kepala sekolah dengan penguasaan kompetensi guru SMK Negeri di Kota Malang. Pada penelitian ini pendekatan yang digunakan ialah pendekatan kuantitatif serta menggunakan desain penelitian korelasional. Berdasarkan hasil analisis pada data yang diperoleh menunjukkan bahwa kegiatan supervisi kepala sekolah SMK Negeri di Kota Malang termasuk dalam kualifikasi sedang, penguasaan kompetensi guru di SMK Negeri di Kota Malang termasuk dalam kualifikasi sedang, serta ada hubungan positif dan signifikan antara supervisi kepala sekolah dengan penguasaan kompetensi guru SMK Negeri di Kota Malang. Kata kunci: supervisi; penguasaan; kompetensi
MODEL SISTEM INFORMASI MANAJEMEN TERPADU UNTUK MENINGKATKAN MUTU LAYANAN PENDIDIKAN
Authors: Farida Anis , Wahyono Rudy , Supanto Fajar
Published: October 2021

Abstract: The purpose of this study is to describe the Integrated Management Information System Model, obstacles and strategies to overcome obstacles and to analyze their implementation in improving educational services in Vocational High Schools, Malang Regency. This study used a qualitative approach, data collection was carried out using interview, observation, and documentation techniques, the sampling method was purposive sampling, namely in three Vocational High Schools that had implemented an integrated management information system and research informants namely the principal, vice principal, head of governance business, teacher representatives and student representatives. The result of this research is an integrated management information system model in SMK Malang Regency using the Master-Web application which is implemented in the curriculum, student affairs, public relations, finance, workforce, and counseling sections. The information generated can be accessed by the principal and used as material for decision making to improve the quality of the school. The obstacles are some human resources who do not master IT, are not disciplined in inputting data, lack of care, lack of infrastructure, and weak system security. Keywords: Integrated management information system model; education services; SMK Abstrak: Tujuan penelitian ini adalah untuk mendeskripsikan Model Sistem Informasi Manajemen terpadu, hambatan dan strategi mengatasi hambatan serta menganalisis implementasinya dalam meningkatkan layanan pendidikan di Sekolah Menengah Kejuruan Kabupaten Malang. Penelitian ini menggunakan pendekatan kualitatif, pengumpulan data dilakukan dengan menggunakan teknik wawancara, observasi, dan dokumentasi, metode pengambilan sampel dengan purposive sampling, yaitu di tiga SMK yang telah mengimplementasikan sistem informasi manajemen terpadu dan informan penelitian yaitu kepala sekolah, wakil kepala sekolah, kepala tata usaha, perwakilan guru dan perwakilan siswa. Hasil penelitian adalah Model sistem informasi manajemen terpadu di SMK Kabupaten Malang menggunakan aplikasi Master-Web yang diimplementasikan di bagian kurikulum, kesiswaan, hubungan masyarakat, keuangan, ketenagaan, dan bimbingan konseling. Informasi yang dihasilkan dapat diakses oleh kepala sekolah dan digunakan sebagai bahan pengambilan keputusan untuk meningkatkan mutu sekolah. Hambatannya adalah beberapa SDM yang tidak menguasai IT, tidak disiplin dalam menginput data, kurang peduli, kurangnya sarana prasarana, dan lemahnya keamanan sistem. Kata kunci: Model sistem informasi manajemen terpadu; layanan pendidikan; SMK
PENGARUH CONSUMPTION ABROAD DAN PERKEMBANGAN TEKNOLOGI TERHADAP PERUBAHAN KEPEMIMPINAN STRATEGIS PENDIDIKAN TINGGI
Authors: Triwiyanto Teguh , Junaidin Junaidin , Abusamra Asmaa
Published: October 2021

Abstract: Consumtion abroad is one of the real impacts of globalization, there is a movement of consumers going abroad and have non-resident status where services are consumed, including higher education. In Indonesia, economic growth is influenced by the level of education and technology, both of which converge in the classroom teaching and learning. Higher education has a strategic role to play in meeting education and technology in the teaching and learning classroom. The factors of knowledge and power, domestic politics, in education have a lot of influence on the development direction of this strategic field. Considered and careful strategic leadership, preserving distinctiveness, and promoting equality among cultures are the long-term commercial interests of higher education, as well as offering individual and social benefits. Key words: Consumption Abroad; technological developments; changes in strategic leadership Abstrak: Consumtion abroad merupakan salah satu dampak globalisasi yang nyata, terjadi arus perpindahan konsumen pergi ke luar negeri dan berstatus bukan penduduk dimana jasa dikonsumsi, termasuk pendidikan tinggi. Di Indonesia, pertumbuhan ekonomi dipengaruhi oleh tingkat pendidikan dan teknologi, keduanya bertemu di dalam kelas pengajaran dan pembelajaran. Pendidikan tinggi memiliki peran strategis terhadap pertemuan pendidikan dan teknologi dalam kelas pengajaran dan pembelajaran tersebut. Faktor-faktor pengetahuan dan kuasa, politik domestik, dalam pendidikan banyak memberikan pengaruh terhadap arah pengembangan bidang strategis tersebut. Kepemimpinan strategis yang dipertimbangkan dan berhati-hati, menjaga kekhasan, dan mempromosikan kesetaraan di antara budaya adalah kepentingan komersial jangka panjang dari pendidikan tinggi, serta menawarkan manfaat individu dan sosial. Kata kunci: Consumption abroad; perkembangan teknologi; perubahan kepemimpinan strategis
Aspectos Generales De La Ley De Insolvencia De Persona Natural No Comerciante
Authors: Araujo Daza Elbert Jesús , Pérez Ramírez Eduardo de Jesús
Published: October 2021

En el desarrollo del presente artículo, se establece un análisis de los aspectos generales de la ley de insolvencia de persona natural no comerciante, promulgada en la Nación con el fin de brindarle protección a las personas naturales que se encuentran en condición de deuda, el cual, explica el procedimiento ajustado a las personas adeudadas o insolventes que no ejercen actividades de comercio y que les resulta imposible cancelar sus deudas, puesto que sus salarios no le alcanzan para cubrir los pagos correspondientes, para ello se realizó una consulta de los artículos 531 al 576 del Código General del Proceso y de la Ley 1564 del año 2012, extrayendo los elementos esenciales con el propósito de cumplir con el objetivo general de la presente investigación, el cual se centra en interpretar los beneficios que se le otorgan a las personas naturales no comerciantes insolventes de cambiar el estatus monetario en el que se encuentran, producto del sobreendeudamiento generado por las distintas entidades crediticias. El presente estudio se realizó bajo un tipo de investigación descriptivo con diseño documental y se concluye que la ley faculta a cualquier persona, así no ejerza actividades de comercio, tenga la oportunidad de establecer un convenio y continuar teniendo acceso a créditos a interés de recuperarse de una crisis económica.
Acción de tutela contra providencias judiciales en la última década
Authors: Vertel Humánez José Antonio , Pantoja Polo Ángela Inés
Published: October 2021

Desde la promulgación de la Constitución de 1991, que creó la acción detutela como mecanismo de amparo de derechos fundamentales, las altasCortes, de aquellas que se interponen en contra de providencias judiciales,indicando que, primeramente, se debe realizar un examen de procedenciatambién llamado requisitos generales y específicos, que una vezcumplidos es necesario verificar el error u omisión cometida por eloperador judicial que profirió la decisión, para que éste sea corregido. Portanto, el objetivo de este artículo es establecer la importancia de la tutelacontra providencias judiciales, tomando como referencia la doctrinajurisprudencial que ha se ha desarrollado en relación a este tema, a travésde la identificación de las diferentes líneas jurisprudenciales que handesencadenado las actuales causales generales y específicas deprocedencia excepcional de la acción de tutela contra providenciasjudiciales, desarrollándose bajo un tipo de investigación descriptiva condiseño documental, bajo un enfoque cualitativo y de Paradigma: histórico– hermenéutico, y como técnica de análisis se empleará el análisis detexto, se espera con la presente investigación realizar una interpretaciónacerca de los principales criterios considerados por los jueces en elmomento de emitir una sentencia y de los requisitos de procedencia de latutela jurídica.
Determination of the beam waist position for the spin-orbit interaction effect observation
Authors:   South Ural State University, Bibikova E.A. ,   Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Kundikova N.D. ,   South Ural State University,   Institute of Electrophysics, Ural Branch of the Russian Academy of Sciences, Shulginov A.A. ,   South Ural State University, Al-Wassiti N. ,   Department of Physics, College of Science, Al-Mustansiriyah University
Published: October 2021

The spin angular momentum and the extrinsic orbital angular momentum of light are associated with the polarization of light and the light propagation trajectory, respectively. Those momenta are interdependent not only in an inhomogeneous or anisotropic medium but even in free space. This interaction is called the spin-orbit interaction of light. The effects of the spin-orbit interaction of light manifest themselves in a small transverse shift of the beam field longitudinal component from the beam propagation axis in the waist region under the circular polarization sign change. They can be observed both for Gaussian beams and for structured beams. The effects of the spin-orbit interaction of light should be taken into account when nanophotonics devices are created, but the detailed investigation of the effect had not been performed yet due to the low intensity noise image of the beam waist. Precise measurements of the focal waist centerline are needed to determine the transverse shift of the beam field longitudinal component of the asymmetric converging beam's waist under the circular polarization sign change. We propose methods for determining the transverse and longitudinal positions of the beam waist. Computer image processing methods made it possible to obtain the value of the beam waist's transverse position with an accuracy of 0.1 mkm. These methods will allow further testing of the shifts' theoretical predictions, the values of which are the order of 1 mkm. The results obtained can also be used for laser processing of materials by polarized light and precise positioning of the beam's focal spot at a surface.
The Application of Corporate Governance Principles in the Banking Sector in Sri Lanka – An Overview
Authors: Nanayakkara W. Indira
Published: October 2021

All economies in the world are propelled by banks and the banking industry. Since the end of the war, Sri Lanka’s development has been accelerated and banks play a prominent role in the economy as they finance growth and development. Corporate Governance (CG) is seen as a particularly important regime for banks, due to their engagement with public funds, the public’s confidence and trust is of paramount importance to a bank’s stability. It is crucial that laws and regulations provide a versatile framework for good governance of the banking sector. This study critically examined the state of CG development and its underlying implications in the banking sector. Primarily, the relevant provisions of the Companies Act, Banking Act and the Monetary Law in Sri Lanka were evaluated, in addition to the other relevant laws, in order to ascertain whether they provide an adequate framework to ensure proper CG of banks. The Central Bank of Sri Lanka (CBSL) has improved its capacity over the years to supervise, enforce and maintain financial stability. It ensures the safety and stability of banks at all times and has taken steps to implement risk management, BASEL II, for tight CG of banking. A mandatory code of CG has been issued by the CBSL, requiring all banks to fully comply with the rules on or before the 31st of January 2009. This study also explores the scope, extent, impact and the effectiveness of the supervisory and regulatory role of the CBSL and identifies the challenges faced by it when addressing the CG issues in the banking industry.
DIE EMPTY: Unleash Your Best Work Every Day# Todd Henry
Authors: Rajeswari TR.
Published: October 2021

No Abstract.
Working Rural Women - Acknowledgement on Various Roles
Authors: Krishnakumar Sheeja
Published: October 2021

There are transformations happening in the social and economic front in the rural areas of India. Among the many changes, perception on women’s employment in information technology-enabled service companies among the rural society is emphasised in this study. This paper focuses on the views among the rural public towards changing woman’s roles and responsibilities in the family beyond the roles as a mother or wife due to an increase in women’s employment in information technology-enabled services companies. The article tries to examine whether there is a change in the perception between males and females in the rural area towards women’s employment. Besides, the study tries to see whether the working woman’s contribution to family wellbeing is influenced by childcare, more earning by husband, household duties and good relationship with children. Eight hundred and eleven samples were collected from four different districts of two states in India. The statistical tools used for the study are T test, Anova, multiple regression and discriminant analysis. The demographic variables considered for this study includes age, gender and education. The regression analysis revealed that wellbeing of the family is related to woman’s involvement in taking care of children, involving in household activities and maintaining good relations with children. The discriminant analysis reveals that there is no difference between the genders regarding her employment. The mind set of women taking care of children and household activities still remain priority but their perception that husband’s earning should be more than wife and spending extra time outside for official purpose is not given significance. There is a positive change in the attitude of the rural society towards woman’s employment. Her involvement in childcare and household activities is for the wellbeing of the family and for the future generation. This positive outlook encourages more women to the workforce in rural areas.
IDENTIFICATION OF ACOUSTIC EMISSION SOURCES IN A POLIMER COMPOSITE MATERIAL UNDER THE CYCLE TENSION LOADING
Authors:   Komsomolsk-on-Amur State University, Bryansky A. A. , Bashkov O. V. ,   Komsomolsk-on-Amur State University
Published: October 2021

The structure of polymer composite materials (PCM) provides high mechanical properties but, at the same time, is highly sensitive to the formation of internal defects. Therefore, when designing, manufacturing products, and assessing their reliability in service, much attention is paid to the methods of non-destructive testing, among which the method of acoustic emission (AE) has proven itself to study structural changes in material under external influence. The paper deals with the identification of typical damages in fiberglass samples made of T11-GVS9 glass fiber cloth and DION 9300 FR binder and tested under cyclic tension using the AE method. In the work, the authors solved the problem of selecting the AE informative parameters and used a clustering method to identify the nature and the formation kinetics of the AE sources. The authors performed clustering using the Kohonen self-organization map (SOM) with the Fourier spectra calculated for the AE signals recorded during cyclic tests. Based on the peak frequencies analysis of the produced clusters, the researchers determined their nature and calculated the periods of critical accumulation. When characterizing the AE sources, the authors used the peak frequencies analysis of the wavelet spectra performed for different levels of decomposition. The authors determined the damage accumulation stages of samples during testing based on own research and research by other authors’ results. The study established that registration of AE signals identified as adhesion failure can be used to identify the onset of the material destruction and characterized the local formation of micro-damages in the matrix and fracture of fibers can be used to predict the destruction of PCM.
THE RESEARCH OF AGING AND MECHANICAL PROPERTIES OF NANOSTRUCTURAL TITANIUM
Authors:   Ufa State Aviation Technical University, Rezyapova L. R. , Valiev R. R. ,   Ufa State Aviation Technical University, Usmanov E. I. ,   Ufa State Aviation Technical University, Valiev R. Z. ,   Ufa State Aviation Technical University
Published: October 2021

It is known that titanium and its alloys are one of the promising materials in the industry, especially in medicine, due to their excellent biocompatibility and corrosion resistance. The latest modern equipment and instruments used in traumatology, orthopedics, dentistry, etc. demand increasingly higher mechanical properties for materials. In comparison with commercially pure titanium, alloys do not have such high corrosion-resistant properties and biocompatibility. In this regard, improving the mechanical characteristics of a pure material is an urgent issue. The authors studied the effect of annealing on the structure and properties of commercially pure grade 4 titanium in the coarse-grained and ultrafine-grained states. The ultrafine-grained state was obtained using high-pressure torsion (HPT) under the pressure of 6 GPa at N=10 revolutions at room temperature. In the microstructure investigated using transmission electron microscopy, the authors could detect particles of precipitated phases after annealing, which had different morphologies. Deformation leads to an increase in the precipitated particles after annealing. The authors carried out an X-ray phase analysis, which showed the approximation of the lattice parameters of the α-phase after deformation and annealing at 700 °C to the values of the parameters of pure titanium. Thus, aging processes occur in the material, accompanied by the decomposition of the supersaturated solid solution and the release of particles of the second phase. The paper shows the results of titanium microhardness measurements in different states. The combined treatment, consisting of HPT at N=5 revolutions, annealing at 700 °C, and additional HPT deformation at N=5 revolutions, allowed obtaining the record strength for commercially pure grade 4 titanium.
COGNITIVE MODELING OF THE QUALITY MANAGEMENT SYSTEM OF VOCATIONAL SECONDARY EDUCATION IN THE CONTEXT OF MODERNIZATION
Authors:   Ural State Pedagogical University, Chikova O. A. ,   Novosibirsk State Pedagogical University, Vasilyeva A. V. ,   Novosibirsk Electromechanical College,   Novosibirsk State Pedagogical University
Published: October 2021

The paper describes the updated approach to quality management of vocational secondary education (VSE) in the context of its modernization involving cognitive modeling of the educational process in the college. The authors analyzed the impact of project initiatives in the national VSE system on the quality of education in the college: the spreading of the dual education system, evaluation of education results through the WorldSkills national system of qualifications and standards, digital transformation of education. Cognitive modeling allowed studying the quantity change in the quality of education in response to variations of managing variables – project initiatives in the national VSE system – and modeling the results of the application of various strategies of development of the VSE educational institution. Based on the processing of experts' opinions matrix, the authors formed the educational process cognitive map. The paper contains the description of the cognitive model of the educational process of the college and the results of scenario modeling of the project initiatives’ impact on the quality of education. Using PEST- and SWOT-analysis, the authors described the characteristics of the educational process cognitive model. PEST-analysis revealed ten various factors (concepts) influencing the educational process in the college: the quality of education, independent evaluation of qualification, digitalization of education, academic learning, practical education, attendance, students’ academic progress, material and technical support of educational process, dual education system, and teaching staff competence level. SWOT-analysis identified cause-effect relationships between factors, evaluated their power and focus. The presented technique of cognitive modeling of the college educational process allows implementing new possibilities of strategic planning of the VSE quality management system.
ECONOMIC AND MATHEMATICAL SIMULATION MODEL OF PRICE COMPETITION IN THE LIGHT AIRCRAFT MARKET UNDER THE DUOPOLY CONDITIONS
Authors:   Academician S.P. Korolev Samara National Research University, Ivanov D. Yu. , Kolychev S. A. ,   Academician S.P. Korolev Samara National Research University
Published: October 2021

The growing volume of light aircraft production at the domestic enterprises over the past two to three years indicates the increasing demand for this type of product and the government’s interest in the aircraft industry development. Despite the slow pace of development of small aircraft in Russia, domestic enterprises producing light aircraft, except for the domestic market, find their customers abroad, in the international market, where they have to face tough competition. The work deals with the study of the competitive interaction between light aircraft manufacturers in the market in the context of price competition in the case of a duopoly. Using special software, the authors formulated competitive interaction simulation models determining the trajectories of changes in the key economic parameters such as the best prices selected by market participants according to their target functions, production volume, earnings and profit gained as the result of competitive interaction. The authors formed a mathematical model of choosing the optimal price for the products in the static and dynamic versions by the participants of the light aircraft market. Based on the dynamic model using the Simulink (MATLAB) simulation environment for complex systems, the authors formed simulation models of the competitive interaction mechanism; developed the correlated simulation dynamic models of market interaction of light aircraft manufacturers considered many factors inherent in actual market conditions and specificity of the light aircraft industry. The work includes the numerical experiment to determine the influence of cost price value on the prices for produced goods, the demand for these products, and the results gained by the market participants.
The effectiveness of the new intraovarial autoplasmotherapy technology in patients with low ovarian reserve
Authors: Gasparov A.S. , Dubinskaya E.D. , Dmitrieva N.V. , Kolesnikova S.N. , Holban I.V.
Published: October 2021

In this study, the authors presented the results of intraovarial autoplasmotherapy (PRP – platelet rich plasma) in 80 patients suffering from low ovarian reserve, “poor response” in IVF programs and ineffective IVF attempts in the anamnesis. The 1st group included 40 women who underwent intraovarial PRP by means of using stop-point navigation technology; the 2nd group included 40 women who received PRP without using stop-point navigation technology. The obtained data convincingly demonstrate that PRP with the use of stop-point navigation technology has a better effect on the ovarian function activation (an increase in anti-muller hormone (AMH), an increase in the number of antral follicles (CAF), an increase in estradiol, a decrease in follicle-stimulating hormone (FSH)), compared with PRP without the use of stop-point navigation technology.
Виды симметрии в окружающей действительности
Authors: Гамова Н.А. , Поляков К.А.
Published: October 2021

Статья посвящена симметрии в окружающей нас действительности. Целью данной работы является рассмотрение видов симметрии, выявление преимуществ и недостатков. В статье анализируется понятие симметрии у живых и неживых существ, затрагиваются различные теории ее происхождения.
О моделировании эколого-социо-экономических систем
Authors: Меншуткин В.В. , Минина Т.Р.
Published: October 2021

Ускорение технического процесса за прошедшие 100 лет внесло значительные изменения в круговорот биогенных элементов, воды и загрязнений биосферы Земли, создав экологические проблемы, для решения которых необходимы изменения в экономике и социальной сфере. Одним из подходов к управлению эволюционными процессами биосферы, в том числе экосистемами, является компьютерное моделирование сложных систем, в частности, когнитивное моделирование, которое стало возможным благодаря стремительному развитию компьютерных технологий. Приводится пример такого подхода к решению экологической проблемы сохранения водных ресурсов – когнитивное моделирование социо-эколого-экономической системы водосбора крупного водоема для исследования возможности повышения уровня жизни населения и развития социальной сферы водосбора при выполнении условий охраны окружающей среды.
Reengineering of business processes Teta Food LLC
Authors:   Belgorod State National Research University, Migulina Darya S. , Zaitseva Tatyana V. ,   Belgorod State National Research University
Published: October 2021

This article discusses the improvement of the work of an enterprise in the production sphere of LLC "TETA FOOD", which consists in increasing the efficiency of employees of the enterprise by reducing the time for the formation of a full package of documents (UPD) for submission to the tax office for the purpose of refunding VAT to the exporting enterprise. In the analytical part, the features of the VAT refund to the exporting company are analyzed in detail. To formalize and describe business processes, the notation IDEF0 and IDEF3 was chosen. In the design part, the ―AS IS‖ model was analyzed and the main problems of the model were identified. A strategy for the future strategy based on the IDEF0 methodology was developed.
The role of vinylene carbonate in functioning of lithium-ion and sodium-ion batteries
Authors:   A. N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS, Kulova Tatian L. , Skundin Alexander M. ,   A. N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS
Published: October 2021

The short review is devoted to the description of the effect of adding vinylene carbonate into the electrolyte of lithium-ion and sodium-ion batteries on the structure and properties of passive films on electrodes and on the behavior of batteries accordingly. The reviewed literature covers the works of the last 20 years mainly.
Prevalence and Severity of Dental Fluorosis among Primary School Children Aged 12–14 Years in Abosied and Alfetehab Localities, Omdurman, Sudan
Authors: Abd Rahman Mahmoud Ali Hagir , Mohammed Alhassn Algdal Moneer
Published: October 2021

Background: Dental fluorosis is a disease of dental hard tissues resulting from excess fluoride intake during the developmental stages of teeth causing hypomineralization of the enamel. This study aimed to assess the prevalence of dental fluorosis among school children in Omdurman locality.
Methods: Students in the sixth grade of school were examined to determine the prevalence of dental fluorosis using Dean’s index.
Results: The prevalence of dental fluorosis was 68.3%. The majority of students were diagnosed with very mild (23.2%) and mild (26.5%) forms. There was no difference in the grade of fluorosis between children who were born outside and in Omdurman.
Conclusion: Prevalence of dental fluoride was found to be very high among school children with no difference between males and females.
Keywords: fluorosis, Sudan, school children
Predictors of Birthweight in Healthy Women Attending A Rural Antenatal Clinic
Authors: MSL Mathule , T Kennedy , G Gates , Spicer Maria T
Published: October 2021

Birthweight is important to infant survival and the later health of a child. To promote optimum birthweight, in an environment that is vulnerable to seasonal food shortages, it is important to understand the relationship between birthweight and exposure to the hungry season. The objective of this study was to determine seasonal effects on birthweight and examined the ability of maternal and seasonal variables to predict birthweight in this cohort. The study was conducted at Scott Hospital-Morija which services rural communities in Lesotho. Women with normal healthy pregnancies without complications, with a clinic attendance of five or more times, who had full term singleton infants were included. Information including infant’s date of birth, infant’s birthweight and length, monthly maternal weights, and date of first and last antenatal visit were systematically and retrospectively extracted from 477 Antenatal Clinic (ANC) records covering a period of three years from May 1998 to April 2001. There were 252 male infants with mean birthweight of 3169g ± 420 and 225 female infants with mean birthweight of 3297g ± 436. A seasonal pattern was observed with a significant difference (p<0.05) between the mean birthweights in the December and January hungry season (3100g ± 70) and the mean birthweights in March, April, August and September (3310g ± 70). First trimester exposure to the hungry season had a tendency to correlate with birthweight (p<0.10). Third trimester exposure to the hungry season had a significant negative (r = - 0.106, p<0.05) relationship with birthweight. The best predictors of birthweight were maternal parity (p=0.0001), last pregnancy weight (p=0.0001) and exposure to the hungry season in the third trimester (p=0.022) with the first trimester (p=0.056) of pregnancy approaching significance. Thus, length of exposure to the hungry season is important in determining pregnancy outcomes. The regression model including last pregnancy weight, maternal parity and exposure to the hungry season in the third trimester explained 12.2% of the variance in birth weight (p=0.017). Increased surveillance of primigravid women, promoting pregnancy weight gain for optimal infant weight at term and supplementation during the hungry season are recommended.
Vegetable Consumption Pattern of Households in Selected Areas of the old Rivers State in Nigeria
Authors:   Rivers State University of Science and Technology, Hart Alexander D , CU Azubuike ,   Abia State University Teaching Hospital, IS Barimalaa ,   Rivers State University of Science and Technology, Achinewhu SC ,   Rivers State University of Science and Technology
Published: October 2021

The vegetable consumption pattern of households in selected areas in the old Rivers State (now Rivers and Bayelsa States) in Nigeria was investigated. Areas studied were Port Harcourt the State capital, Igwuruta, Ahoada and Kaiama. Results showed that mothers consumed 59 ± 0.45g to 130 ± 2.04g/person/day of vegetables between the months of May and July, the peak season of vegetable production. Factors that influenced vegetable consumption were found to be chiefly season and culture. Other factors were availability/price for 43.8% of households in Kaiama, a riverine community, while taste and nutrition knowledge wielded minor influences. Leafy vegetables were consumed at least four times per week in Igwuruta and Port Harcourt, while households in Ahoada and Kaiama, where culture had strong influence, consumed them only occasionally. Vegetables consumed were mainly pumpkin leaves (Telfairia occidentialis) and okro (Abelmoschus esculentus) in areas where season played a strong role. In areas where culture had a strong influence, bitterleaf, a leafy vegetable that undergoes rigorous process of squeezing and washing and is only scantly used in soups, was the vegetable of choice. Other vegetables less frequently consumed were Amaranthus hybridus, Pterocarpus spp., Gnetum africanum and Piper guineense leaves. These were used chiefly in various soup dishes eaten as accompaniments with the starchy staples. Other dishes in which leafy vegetables were consumed were pottage in those areas of high vegetable consumption, and occasionally in stew by all households investigated. Household size of 5 to 8 persons consumed their soup dishes between two and four days, while larger households of nine and above ate their soups in one day. However, households with deep freezer facilities stored their soup dishes for up to seven days. In spite of the reasonable consumption of vegetables during the peak season of production, reports of micronutrient deficiencies in Nigeria are rife, indicating a need for intervention. Possible reasons for the high prevalence of micronutrient deficiencies are seasonal variations in vegetable production, inadequate processing and preservation of vegetables for all year distribution and culture which may limit adequate consumption of leafy vegetables even when they are in abundance. This situation underscores the need for nutrition education, coupled with a program on dietary diversification to create awareness, increase production, processing, preservation and consumption of vegetables.
The Effect of Cereal-legume Intercropping Systems on the Cereal Grain Yield under Semi-arid Conditions
Authors: Benider C. , Laour S. , Madani T. , Gundouz A. , Kelaleche H.
Published: October 2021

Background: The aim of this study is to ascertain the response of dual exploitation of intercrops systems their ability to produce forage and grain. Thus the efficiency of the cereal-legume intercropping on the qualitative and quantitative improvement yield of cereals. Methods: The experiment was conducted at the Setif University Experimental Farm during the years of 2019-20. The experiment was laid out in completely randomize block (CRB) design with three replications. Three cereals namely triticale, oats and barley in association with forage pea and other mixtures with (Vesce commune) were studied. The measure focused on accumulation of dry matter accumulation (DMA), plant height, flag leaf length (FLL), grain yield (GY) and thousand kernels weight (TKW). Result: The results indicate that capacity of intercropping system systems to produce more dry matter than their mono cropping systems, as well as the intercropping systems significantly improved the qualitative and quantitative yield of cereals in all the tested intercropping systems. A positive significant correlation between SH and FLL r = 0.78 in the peas/oats intercrop. Thus use like this positive significant correlation between DMP GY r = 0.94, while the tritical / pea and barley / pea intercropping are characterized by the best DMP, GY and TKW among different tested cropping systems.
Estimation of Genetic Parameters for Body Weight and Some Colour Traits in the Seventh-generation Index Selected Nigeria Heavy Local Chicken Ecotype
Authors: Ohagenyi I.J. , Iregbu F.C. , Udeh V.C.
Published: October 2021

Background: This study was conducted to estimate the genetic parameters of body weight and some colour traits in seventh generation (G7) index selected Nigerian Heavy Local Chicken Ecotype (NHLCE) progenies at point of lay to 12 weeks. Methods: 5 sires and 12 hens were used to generate the progenies used for the experiment. Traits measured included weekly body weight, egg colour, beak colour and feather colour. Data collected were subjected to one way analysis of variance in a Paternal half sib analysis using Animal model of SAS (2003). Four weeks body weight measurements, egg colour, beak colour and feather colour for 5 sires ranged from 1.29±0.05 1.54±0.07; 2.55±0.02 to 4.00±0.02; 2.45±0.02 to 4.83±0.02 and 1.73±0.02 to 4.58±0.04 respectively. Result: The new Duncan’s multiple range test shows that sire families are similar (p greater than 0.05) in the body weight and beak colour, but significantly differed (p greater than 0.05) in the egg colour and feather colour. The heritability estimates of mature body weight for week 3 was medium, while estimates of heritability for weekly mature body weight for weeks 1, 2 and 4, egg colour, beak colour and feather colour of NHLCE were low heritability. Low h2 of traits suggest that progeny and pedigree selection could be employed for improvement of the egg colour, beak colour and feather colour of NHLCE. The study showed positive genetic correlations between beak colour and egg colour, negative genetic correlations between beak and feather colour. This means that no decision can be taken in isolation as the selection of one trait will have consequences on other traits.
Feeding Total Mixed Ration (TMR) on Production and Reproductive Performance of Lactating Dairy Cows: A Review
Authors: Karunanayaka R.H.W.M. , Liyanage R.T.P. , Nayananjalie W.A.D. , Kumari M.A.A.P. , Somasiri S.C. , Adikari A.M.J.B. , Weerasingha W.V.V.R.
Published: October 2021

The development of the dairy sector is economically important to many countries of the world. However, the dairy sector has faced many constraints due to the unavailability of quality and quantity of feed resources and their responses on growth, health and reproduction in dairy animals. The total mixed ration (TMR) is an alternate strategy to overcome the feed shortage of lactating cows by utilizing available feed resources effectively and efficiently. This review article elaborates the effects of TMR on the production and reproduction performance of lactating dairy cows. Interestingly, TMR feeding has a significant effect on the body weight, feed intake, feed efficiency, milk yield and composition and reproductive performances of lactating dairy cows. Feeding TMR to dairy animals was investigated to provide a balanced diet, reduce feed wastage and save labour cost and time. Hence, feeding TMR as per the animal requirement is more efficient as compared to traditional feeds.
Análisis del Estrés y Nivel de Concentración de Estudiantes Universitarios Durante Periodos de Exámenes
Authors: Lobato Báez Mariana , Morales Rosales Luis Alberto , Algredo Badillo Ignacio , Herrera Valadez Ruth Alejandra
Published: October 2021

OBJETIVO: Identificar el nivel de estrés académico mediante el instrumento de medición SISCO y el nivel de concentración de los estudiantes.
MATERIAL Y MÉTODO: Se detectaron las frecuencias de ondas cerebrales de 122  estudiantes utilizando el dispositivo Muse Headband. Para medir el nivel de confiabilidad se empleó Alfa de Cronbach, obteniendo un valor de 0.83. Se realizó un análisis factorial, teniendo como resultado en la prueba de esfericidad de Bartlett de .000 y un valor de adecuación KMO (Medida Kaiser-Meyer-Olkin) de .783. Se utilizó el modelo de Regresión Lineal Múltiple para la identificación de asociación de variables.
RESULTADOS: Se evidencia una correlación de variables para el estrés académico relacionado a la fatiga crónica, aislamiento de los demás, tipos de trabajo que dejan los profesores, aumento o reducción de consumo de alimentos.
CONCLUSIONES: Los alumnos atribuyen el estrés académico a las evaluaciones, a la sobrecarga de tarea y trabajo, el tiempo limitado para la realización del mismo. Destacando como principales síntomas fueron: inquietud (incapacidad de relajarse y estar tranquilo); fatiga crónica (cansancio permanente); aumento o reducción de consumo de alimentos; ansiedad; angustia o depresión.