Criterion for Hydraulic Fracture Propagation Behavior at the Interface of a Coal Measure Composite Reservoir by Yifeng Guo, Runxu Zhang, Xinghua Zhang, Kangkang Han, Fazhi Yan, Cunbao Deng, Zhixin Jin

“…Regarding the three expansion modes of hydraulic fractures at the interface of a coal measure composite reservoir (arrested, deflection, and penetration), based on the coupling theory of fluid flow and solid elastic deformation, a criterion that considers the influences of the injection parameters (fracturing fluid injection rate and viscosity) is established to predict the propagation path of hydraulic fractures at the interface of a composite reservoir. …”
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Features of personal competence of the employees of preventive activity units of the National Police by O. Yu. Shlomin

“…The methodological grounds for the study were: psychological theory of activity, the concept of genetic development of a person, modern concepts of professional genesis. …”
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Simulation Study on the Impact Response of Barrels with Different Rifling Profiles during Bullet Engraving by Zhifang Wei, Yangyang Cheng, Zhiwei Wang, Yanpeng Lin

“…Second, theoretical models were constructed considering different rifling structures: a model to calculate the chamber pressure, a model for heat transfer in the barrel during continuous firing, and a model to calculate the friction between a bullet and the barrel wall surface based on shear-slip friction theory. These models were integrated into a simulation, where the ABAQUS (ABAQUS. 6.14.1-4. 2014. …”
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Recent Progress about Flight Delay under Complex Network by Tang Zhixing, Huang Shan, Han Songchen

“…We surveyed recent progress about flight delay which makes extensive use of complex network theory in this paper. We scanned analyses on static network and temporal evolution, together with identification about topologically important nodes/edges. …”
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Efficiency-House Optimization to Widen the Operation Range of the Double-Suction Centrifugal Pump by Wenjie Wang, Majeed Koranteng Osman, Ji Pei, Shouqi Yuan, Jian Cao, Fareed Konadu Osman

“…Then, the “efficiency-house” theory is introduced to convert the multiple objectives into a single optimization target. …”
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Problem of Description of the Characteristic Features of Discrimination in the Labor Sphere by A. V. Kychko

“…The author of the article has studied the problem of description of the characteristic features of discrimination in the labor sphere because there is no single point of view on this matter in the theory of labor law. The analysis of legal literature, the corresponding normative and legal material has been carried out. …”
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Coordination of a Green Supply Chain with One Manufacturer and Two Competing Retailers under Different Power Structures by Wei Wang, Xiujuan Liu, Wensi Zhang, Ge Gao, Hui Zhang

“…The main objective of this research is to examine the role of power relationship in a two-level green supply chain which is made up of one shared manufacturer and two competitive retailers. We develop six game theory-based models to explore the members’ operational decisions in a supply chain taking into account three vertical power structures (Manufacturer Stackelberg, Retailer Stackelberg, and Vertical Nash) as well as two retailers’ horizontal power structure (Bertrand or Stackelberg competition). …”
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Optimal Bus-Bridging Service under a Metro Station Disruption by Haodong Yin, Jianjun Wu, Huijun Sun, Yunchao Qu, Xin Yang, Bo Wang

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Inferring the energy cost of resistance to parasitic infection and its link to a trade-off by Frédéric Douhard, Carole Moreno-Romieux, Andrea B. Doeschl-Wilson

“…The exact energy costs of immune defense are however unknown in general. Life history theory predicts that such costs underpin trade-offs between host disease resistance and other fitness related traits, yet this has been seldom assessed. …”
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A Traffic Flow Evolution Process toward Mixed Equilibrium with Multicriteria of Route Choice Behaviour by Xiangjun Jiang, Zhongxiang Huang, Zhenyu Zhao

“…Based on the price-quantity adjustment behaviour principle of disequilibrium theory, the route choices of travellers are also affected by a quantity signal known as traffic flow, while the route cost is considered as a price signal in economics. …”
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A Generalized Bridge Regression in Fuzzy Environment and Its Numerical Solution by a Capable Recurrent Neural Network by Delara Karbasi, Mohammad Reza Rabiei, Alireza Nazemi

“…The suggested neural network model is constructed based on some concepts of convex optimization and stability theory which guarantees to find the approximate parameters of the proposed model. …”
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Universality of human rights: general theoretical characteristics by Yu. A. Kholod

“…It is emphasised that today there is no single approach to substantiating the theory of human rights. The article emphasises that every person is endowed with universal, inalienable and inalienable rights, which are called human rights. …”
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What Signal Paradoxes of Global Economy by T. A. Malova

“…Fiscal stimulation undertaken by states in the face of the spread of virus can be interpreted as a pilot project for the implementation of some of the basic ideas of the Modern Monetary Theory (MMT). The solution of the microeconomic paradox of public goods is possible on the basis of the principle of "rationality" as a priority social concept. …”
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Study on the Effect of Soft and Hard Coal Pore Structure on Gas Adsorption Characteristics by Xun Zhao, Tao Feng, Ping Wang, Ze Liao

“…In order to grasp the effect of soft and hard coal pore structure on gas adsorption characteristics, based on fractal geometry theory, low-temperature nitrogen adsorption and constant temperature adsorption test methods are used to test the pore structure characteristics of soft coal and its influence on gas adsorption characteristics. …”
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Determinants of e-pharmacy adoption and the mediating role of social influence among young users by Adetumilara Iyanuoluwa Adebo, Kehinde Aladelusi, Mustapha Mohammed

“…Purpose – This study aims to examine the mediating role of social influence on the relationship between key predictors of E-pharmacy adoption among young consumers based on the unified theory of adoption and use of technology (UTAUT). …”
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Theoretical Analysis on Distribution Pattern of Plastic Zone in Surrounding Rock of High-Gas-Coal Roadway by Chao Yuan, Liming Cao, Lei Fan, Jianqiang Guo

“…Based on elastoplastic theory, this paper considers the gas pressure parameters and uses the Mohr–Coulomb strength criterion to derive the implicit equation of the plastic zone boundary in the rock surrounding gas-coal roadways. …”
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Scoping review of qualitative studies on family planning in Uganda. by Julie M Buser, Pebalo F Pebolo, Ella August, Gurpreet K Rana, Rachel Gray, Faelan E Jacobson-Davies, Edward Kumakech, Tamrat Endale, Anna Grace Auma, Yolanda R Smith

“…We extracted data from the 71 eligible studies and synthesized the findings using thematic analysis and the Ecological Systems Theory (EST) individual, interpersonal, community, institutional, and policy-level determinants. …”
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O professor no ensino remoto durante a pandemia do novo Corona Vírus: desafios enfrentados e quebra de sentidos by João Paulo Oliveira Lucena, Thales da Costa Lago Alves, Anatália Saraiva Martins Ramos

“…O trabalho é pioneiro em utilizar a Grounded Theory como método de análise para o fenômeno e no campo teórico fornece novos elementos ao framework conceitual inicial. …”
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Highly Compact GCPW-Fed Multi-Branch Structure Multi-Band Antenna for Wireless Applications by Ikhlas Ahmad, Wasi Ur Rehman Khan, Sadiq Ullah, Naveed Mufti, Abdullah G. Alharbi, Niamat Hussain, Mohammad Alibakhshikenari, Mariana Dalarsson

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Analyzing Rail Traffic Diversion Based on Machine Learning Technique considering Transportation Security by Jing Luo, Dai Zhou, Wenjun Ma, Guohua Zhao

“…A stochastic utility theory is introduced to describe the transfer behavior pertaining to travel modes, and a binary Logit model for diversion transfer is constructed. …”
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