bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sino-Russian Cooperation in the Yangtze and Volga River Basins
Authors: Wang Juntao , Lyubina D. E. 
Published: March 2022

Cooperation between the regions of the Volga Federal District and the territories of the upper and middle reaches of the Yangtze River of the People’s Republic of China is one of the tools for activating multifaceted Russian-Chinese relations. The creation of a Sino-Russian cooperation mechanism through the Volga — Yangtze Format is of great importance for promoting the development of economic and trade exchanges between the two states, as well as the formation of points of contact in the humanitarian sphere. The similarity of geographical features of these regions is a good basis for the exchange of experience in solving economic, environmental and humanitarian problems of the development of territories located along major waterways.Aim. The purpose of the work is to identify the main vectors of possible development of cooperation and ways to overcome the problems arising in this cooperation by analyzing the intensity of interregional cooperation between Russia and China in the Volga — Yangtze format.Tasks. To analyze program documents and mass-media materials in terms of coverage of the implementation of Sino-Russian projects in the Volga-Yangtze format. To carry out a quantitative analysis of existing joint projects with China in the Volga Federal District. To identify the “growth points” of further economic cooperation between Russia and China in the Volga — Yangtze format.Methods. Empirical research methods, search and analysis of information from mass media, analysis and comparison of data, comparison and generalization were used in the work.Results. By studying the current state of the economic component of Russian-Chinese cooperation in the Volga — Yangtze format, it was possible to identify the difficulties existing in cooperation between the two sides, which could be purposefully solved if the effectiveness of local cooperation was strengthened.Conclusions. At the present stage, there are some obstacles to the effective development of cooperation between the regions of the Volga Federal District and the territories of the upper and middle reaches of the Yangtze River of the People’s Republic of China in the Volga — Yangtze format, such as difficulties in the macroeconomic situation in Russia, the weakness of the foundation of regional cooperation, the need for an effective coordination mechanism at the regional level, as well as clear schemes of financial and tax support. In addition, based on the geographical features of the regions and the reliance of regional economies on water resources, the development of environmental cooperation in the Volga — Yangtze format would be a progressive format of cooperation.
UNIVERSIDADE PÚBLICA, GÊNERO E PRODUÇÃO ACADÊMICA
Authors: Araujo da Silva Andréa Giordanna , Bianco de Souza Queiroz Erica 
Published: March 2022

O estudo identifica os espaços reservados à discussão sobre a mulher e aos estudos de gênero na Universidade Federal de Alagoas. Trata da política de cotas por gênero e da inserção do debate das questões políticas e culturais que permeiam a questão do gênero nas produções acadêmicas no âmbito do ensino, da pesquisa e da extensão. O estudo mostra que ainda que avanços em torno da discussão de gênero no ambiente acadêmico tenham ocorrido, o debate está circunscrito ao campo das Ciências Humanas, sendo amparado numa produção acadêmica limitada e insuficiente para o contexto sociocultural em que se insere a universidade pública.
Analisis Kemampuan Berpikir Kreatif Siswa Ditinjau dari Gaya Kognitif dalam Pembelajaran Elektronik (E-Learning) Berbasis Masalah Materi Pencemaran Lingkungan di Kelas X MIPA SMA Negeri 1 Kota Sungai Penuh
Authors: Wirsal Della , Hamidah Afreni , Asra Revis 
Published: March 2022

This research uses mixed methods with a study design in sequence model aim to analize the ability of creative thinking level and the difference of creative thingking ability for student who has field independent cognitive style and field dependent cognitive style in Problem Based E-Leaning of Environmental Pollution in X MIPA class in Sungai Penuh public high school 1. Sampling of this research is 70 X MIPA students using stratifies random sampling. Quantitative data is analized with descriptive statistical technique and independent sample T-Test, while qualitative data is analized with interactive analysis technique. The analysis result is creative thinking ability of students with the field independent (FI) cognitive style is higher than the student with field dependent (FD) cognitive style in Problem Based E-Leaning of Environmental Pollution.
Keyword: Creative Thinking, Cognitive Style, Problem Based E-Learning

Abstrak. Penelitian ini menggunakan metode kombinasi (mixed methods), dengan rancangan penelitian berupa model urutan, yang bertujuan untuk menganalisis tingkat kemampuan berpikir kreatif dan perbedaan kemampuan berpikir kreatif pada siswa yang memiliki gaya kognitif field independent dan gaya kognitif field dependent dalam pembelajaran elektronik (e-learning) berbasis masalah materi pencemaran lingkungan di kelas X MIPA SMA Negeri 1 Kota Sungai Penuh. Sampel dalam penelitian ini terdiri dari 70 orang siswa kelas X MIPA yang diambil dengan menggunakan teknik stratified random sampling. Data kuantitatif dianalisis dengan menggunakan teknik statistik deskriptif dan Independent Sample T-Test, sedangkan data kualitatif di analisis dengan menggunakan teknik model analisis interaktif. Hasil analisis didapatkan bahwa tingkat kemampuan berpikir kreatif siswa dengan gaya kognitif field independent (FI) lebih tinggi dibandingkan siswa dengan gaya kognitif fielddependent (FD), dalam pembelajaran elektronik (e-learning) berbasis masalah materi pencemaran lingkungan.
Kata kunci: Berpikir Kreatif, Gaya Kognitif, Pembelajaran Elektronik (E-Learning) Berbasis Masalah
Keterampilan Komunikasi Verbal Calon Guru Biologi Melalui Pembelajaran Jarak Jauh
Authors: Hamidah Idah , Luzyawati Lesy 
Published: March 2022

One of the communication skills that must be possessed by prospective biology teachers is oral communication skills. Communication learning plays an important role. The aim of this research is to know the oral communication skills of prospective biology teachers through distance learning. This study uses True Experimental Design with a type of one shoot case study design. A research sample of 30 students of Wiralodra University Biology Education was randomly selected. The results of the data analysis showed that the communication skills of prospective biology teachers in distance learning using the Moodle platform were in the good category with a percentage of 81.8%.
Key words: Communication Skills, Prospecive Biology Teacher

Abstrak.
Salah satu keterampilan komunikasi yang harus dimiliki oleh calon guru biologi yaitu keterampilan komunikasi lisan. Dalam pembelajaran komunikasi berperan penting. Tujuan penelitian ini adalah untuk mengetahui keterampilan komunikasi lisan calon guru biologi melalui pembelajaran jarak jauh. Penelitian ini menggunakan True Experimental Design dengan jenis rancangan one shoot case study. Sampel penelitian sebanyak 30 mahasiswa Pendidikan Biologi Universitas Wiralodra yang dipiih secara random. Hasil analisis data menunjukkan bahwa Keterampilan komunikasi mahasiswa calon guru biologi pada pembelajaran jarak jauh dengan menggunakan platform Moodle berada pada kategori baik dengan presentase sebesar 81,8%.
Kata kunci: Komunikasi Lisan, Calon Guru Biologi
Años potenciales de vida perdidos y análisis espacial de incidentes viales en peatones de Medellín 2015-2020
Authors: Salazar Henao Edwin Alberto 
Published: March 2022

Objetivo: Describir los años potenciales de vida perdidos (APVP) y la distribución espacial de la mortalidad por incidente vial en peatones de Medellín durante el período 2015-2020.
Métodos: Se realizó estudio descriptivo con fuente de información secundaria, se analizaron la totalidad de registros de peatones muertos en incidente vial. El cálculo de los APVP fue realizado por grupos quinquenales y eligiendo como edad límite la esperanza de vida al nacer de Colombia, estimada por el DANE para el período 2015-2020. Para conocer la distribución geográfica de las muertes se creó mapa de puntos y densidad de Kernel con clasificación estándar-cuantil. El análisis de proximidad se realizó por el método búfer de anillos múltiples, con distancias de 100, 200 y 300 metros.
Resultados: En Medellín, durante los años 2015-2020, se registraron 696 muertes de peatones, 514(73,9%) hombres y 182 (26,1%) mujeres. Las comunas de mayor mortalidad fueron Candelaria con 217(31,2%) muertes y Castilla con 61(8,8%). Las lesiones más frecuentes fueron politraumatismos 401 (57,6%) y lesiones en cabeza 231 (33,2%). En total los peatones de la ciudad perdieron 14.553 APVP por incidente vial. Del total de incidentes fatales en peatones, 400 (57,5%) ocurrieron en un radio de distancia de 300 metros de un puente peatonal.
Conclusión: Peatones hombres presentaron las tasas de APVP más altas del período, y son quienes más mueren en la vía. Lesiones en cabeza y cráneo son las más fatales, especialmente si son adultos mayores quienes las sufren. La pérdida de fuerza laboral y económica es alta para la ciudad, pero la social y familiar es incalculable.
Co---expression analysis to identify core regulatory genes of colon cancer stem cells
Authors: Wang Yaoqun , Zhou WeiGuo , Sun Mengyu , Song Chenyu , Qiu Jieping , Zhang Feng , Huang Fuchun , Liu Yan , Chen Bo 
Published: March 2022

Abstract Objective:Cancer stem cells play an important role in the the
drug resistance of malignant tumor and the prognosis, however,the
genes that regulate Colon Adenocarcinoma(COAD) stem cells are still
unknown. We aim to identify COAD stem cell regulatory genes by
co-expression network analysis. Methods:The mRNA expression-based
stemness index(mRNAsi)which derives from TCGA database was analyzed
based on R language. The Weighted Gene Co-expression Network
Analysis(WGCNA) was used to construct co-expression network, establish
the correlation between gene modules and modules trait–mRNAsi , and
determine hub genes. We use Enrichment analysis of genes function and
Protein Interaction(PPI network)to identifying the hub modules and
genes. GEO and OnComine databases were used to validate the hub genes.
Results: MRNAsi was highly expressed in tumor tissues and the result was
statistically significant (p = 7.458E-18), and was positively correlated
with the survival rate (p =0.016). 6501 genes were
screened(FDR<0.05 and|LogFC|≥1)for
co-expression analysis and 17 modules were obtained, among which the
yellow module had the most significant positive correlation with
mRNAsi(p=1e-55,correlation coefficient =0.71).We finally selected
9 genes (BUB1, BUB1B, CHEK1, KIF23, MCM10, NCAPG, NCAPH, PLK4, TTK) from
the yellow module as the hub genes. The above genes had a significantly
high expression in all 13 tumors in the OnComine database.
Conclusion: The 9 hub genes play a crucial role in the development of
COAD and therapeutic resistance.Finding ways to suppress these genes may
be a new target for colon cancer therapy by affecting COAD stem cells.
Analysis of the stress-strain state of a radially inhomogeneous transversely isotropic sphere with a fixed side surface
Authors: Akhmedov N. K. , Yusubova S. M. 
Published: March 2022

Introduction. The paper considers an axisymmetric problem of elasticity theory for a radially inhomogeneous transversally isotopic nonclosed sphere containing none of the 0 and 𝜋 poles. It is believed that the elastic moduli are linear functions of the radius of the sphere. It is assumed that the side surface of the sphere is fixed, and arbitrary stresses are given on the conic sections, leaving the sphere in equilibrium. The work objective is an asymptotic analysis of the problem of elasticity theory for a radially inhomogeneous transversally isotropic sphere of small thickness, and a study of a three-dimensional stress-strain state based on this analysis.Materials and Methods. The three-dimensional stress-strain state is investigated on the basis of the equations of elasticity theory by the method of homogeneous solutions and asymptotic analysis.Research Results. After the homogeneous boundary conditions set on the side surfaces of the sphere are met, a characteristic equation is obtained, and its roots are classified with respect to a small parameter characterizing the thickness of the sphere. The corresponding asymptotic solutions depending on the roots of the characteristic equation are constructed. It is shown that the solutions corresponding to a countable set of roots have the character of a boundary layer localized in conic slices. The branching of the roots generates new solutions that are characteristic only for a transversally isotropic radially inhomogeneous sphere. A weakly damping boundary layer solution appears, which can penetrate deep away from the conical sections and change the picture of the stress-strain state.Discussion and Conclusions. Based on the solutions constructed, it is possible to determine the applicability areas of existing applied theories and propose a new more refined applied theory for a radially inhomogeneous transversally isotropic spherical shell.
On the ambiguity of mechanical power
Authors: Pavlov V. D. 
Published: March 2022

Introduction. Mechanical vibrations are widespread in the production processes. The drives of machines and mechanisms are mainly electromechanical, so mechanical reactive power is transformed into electrical reactive power of the network, impairing the quality of electricity. This explains the significance of considering the mechanical reactive power, and, as a consequence, the urgency of the presented study. The research objective is to detail the types of mechanical power under harmonic vibrations.Materials and Methods. The literature on the issues of dynamics, kinematics, vibrations, transformation of motion in oscillatory systems, etc., has been studied. Theoretical, mainly mathematical methods of research are used.Results. The powers developed under elastic deformations, forced harmonic vibrations of an inert body, and vibrations associated with gravitational influence, as well as reactive, active, full powers in the complex formulation, and mechanical powers in the vector representation are mathematically interpreted.Discussion and Conclusions. Under the mechanical harmonic vibrations, along with the sign-positive thermal power, sign-variable reactive powers develop, characterizing the reversibility of kinetic and potential energies. The total mechanical power satisfies the Pythagorean formula. The concept of mechanical reactive, active, and total powers generalizes the corresponding concepts of power from electrical engineering, and thus manifesting electromechanical dualism.
Analytical solution to approximate equations of the launch vehicle motion under the gust action for the dynamic loading calculation
Authors: Malykhina O. I. 
Published: March 2022

Introduction. The launch vehicle (LV) in flight and the dynamic components of loads from the impact of a trapezoidal wind gust are considered. It is proposed to determine the dynamic components of the force factors using analytical solutions for the structure points accelerations. The work objective is to create a technique for selecting the duration of the standard gust, under the influence of which maximum loads are provided in the sections of the LV structure.Materials and Methods. The launch vehicle is presented as an uneven beam. The description of its vibrations is reduced to a system of independent ordinary differential equations that determine the motion of an equivalent system of oscillators. The equation of oscillator vibrations under the action of a trapezoidal pulse load is solved by the overlay method, and it is reduced to the calculation of the Duhamel integral. It is proposed to get the parameters of an equivalent system of oscillators based on the results of the calculation of dynamic characteristics for a finite element LV model in the Nastran program.Results. Analytical relations for the LV structure point accelerations under the action of a trapezoidal wind gust are given. For the beam model, test calculations of accelerations were carried out according to the technique proposed in this paper. These data are compared to the results of finite element modeling. With the help of analytical solutions, dependences are constructed that determine the nature of the change in the magnitude of the bending moment for different sections of the launch vehicle when the duration of the wind gust varies.Discussion and Conclusions. The presented technique provides building an equivalent dynamic model of systems with a large number of degrees of freedom on the example of a LV and obtaining analytical solutions for accelerations of points of a mechanical system under trapezoidal external action. These solutions are applicable for the study of dynamic loads. The analysis results enable to select the duration of the wind gust, at which maximum loads are reached in the sections of the LV structure. Calculations based on the analytical solutions are very economical in terms of time spent. They can be used in design calculations for preliminary assessment of loading.
Vibration analysis of a composite magnetoelectroelastic bimorph depending on the volume fractions of its components based on applied theory
Authors: Soloviev A. N. , Do Thanh Binh , Chebanenko V. A. , Lesnyak O. N. , Kirillova E. V. 
Published: March 2022

Introduction. Transverse vibrations of a bimorph consisting of two piezomagnetoelectric layers and located in the alternating magnetic field are investigated. Piezomagnetoelectric layers are multilayer composites with alternating piezoelectric and piezomagnetic layers. The mechanical and physical properties of such a composite are given by known effective constants.Materials and Methods. The applied theory of multilayer plate vibrations takes into account the nonlinear distribution of electric and magnetic potential in piezoactive layers in the longitudinal and transverse directions. On the basis of this theory, the stress-strain state, the dependences of deflection, electric and magnetic potentials on the volume ratio of the composition of the hinged bimorph, are investigated. The electric potential is assumed to be zero at all electrodes, while the magnetic potential is zero at the inner boundary and unknown at the outer boundaries. Therefore, the distribution of electric and magnetic potentials in the middle of the layer are unknown functions. In the case of the magnetic potential, the distribution at the outer boundary is also unknown. In the problem, the Kirchhoff hypotheses for mechanical characteristics were accepted. The use of the variational principle and the quadratic dependence of the electric and magnetic potentials on the thickness of piezoactive layers made it possible to obtain a system of differential equations and boundary conditions.Results. When the volume ratio of the composition of piezoactive bimorph materials changes, the electric potential in the middle of the layer changes nonlinearly. The magnetic potential in the middle of the layer and at the outer boundary increases almost linearly with an increase in the volume percentage of BaTiO3. The dependence of the deflection in the middle of the layer is determined.Discussion and Conclusions. An applied theory for calculating transverse vibrations of a bimorph with two piezomagnetoelectric layers is constructed. The dependence of the characteristics of the stress-strain state, electric and magnetic fields on the volume fractions of piezomagnetic and piezoelectric materials, is investigated.
Challenge of the performance management of trust control systems with deep learning
Authors: Zelensky A. A. , Abdullin T. K. , Zhdanova M. M. , Voronin V. V. , Gribkov A. A. 
Published: March 2022

Introduction. The significance of machine learning under the conditions of digital transformation of industry, and methods of implementing deep learning to provide the performance of trust management systems are considered. The necessity of using convolutional artificial neural networks for deep machine learning is determined. Various technologies and architectures for the implementation of artificial neural networks are briefly considered; a comparative analysis of their performance is carried out. The work objective is to study the need to develop new approaches to the architecture of computing machines for solving problems of deep machine learning in the trust management system implementation.Materials and Methods. In the context of digital transformation, the use of artificial intelligence reaches a new level. The technical implementation of artificial neural systems with deep machine learning is based on the use of one of three basic technologies: high performance computing (HPC) with parallel data processing, neuromorphic computing (NC), and quantum computing (QC).Results. Implementation models for deep machine learning, basic technologies and architecture of computing machines, as well as requirements for trust assurance in control systems using deep machine learning are analyzed. The problem of shortage of computation power for solving such problems is identified. None of the currently existing technologies can solve the full range of learning and impedance problems. The current level of technology does not provide information security and reliability of neural networks. The practical implementation of trust management systems with deep machine learning based on existing technologies for a significant part of the tasks does not provide a sufficient level of performance.Discussion and Conclusions. The study made it possible to identify the challenge of the computation power shortage for solving problems of deep machine learning. Through the analysis of the requirements for trust management systems, the external challenges of their implementation on the basis of existing technologies, and the need to develop new approaches to the computer architecture are determined.