Opportunity Cost Classification of Goods and Markets by Davor Mance, Nenad Vretenar, Jana Katunar

“… Sixty years ago, Samuelson’s “Pure Theory of Public Expenditure” expounded the classification of goods, and Bain’s “Economies of Scale, Concentration and the Condition of Entry in Twenty Manufacturing Industries” expounded the structure-conduct-performance paradigm. To the present day, rivalry in- and excludability from consumption classify goods, and subadditivity and irreversibility in production classify market structure. …”
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Identity Struggles of Museum Professionals: Autonomous Expertise and Audience Participation in Exhibition Production by Taavi Tatsi

“…At the same time, its identity work bastions its components against diverse forms of structural audience participation. The museum professional's identity responds to the challenge of structural audience participation with resistance, anxiety and othering. …”
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Analysis of the steel industry in Russia by D. G. Saginashvili, V. D. Ryabova, M. I. Zakirova

“…The calculation of the main indicators of the market structure in the form of the Herfindahl-Hirschman formulas and the concentration coefficient for the three largest sellers has been carried out. …”
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Tag-modules with complement submodules H-pure by Surjeet Singh, Mohd Z. Khan

“…The concept of a QTAG-module MR was given by Singh [8]. The structure theory of such modules has been developed on similar lines as that of torsion abelian groups. …”
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An Innovative Way to Generate Hamiltonian Energy of a New Hyperchaotic Complex Nonlinear Model and Its Control by Kholod M. Abualnaja

“…We are implementing a new Rabinovich hyperchaotic structure with complex variables in this research. …”
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Translation and psychometrical properties of Coronavirus Anxiety Scale (CAS) in Peruvian young people and adults by Rulman Andrei Franco-Jimenez

“…Method: The sample was composed of 622 Peruvian young people and adults who answered CAS. The structural evaluation was conducted with confirmatory factor analysis. …”
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Statistical Analysis of Metagenomics Data by M. Luz Calle

“…Microbiome data analysis is challenging because it involves high-dimensional structured multivariate sparse data and because of its compositional nature. …”
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Forest based data collection in MR-MC wireless sensor networks by Wei-ping ZHANG, Ya-hong GUO, Meng WANG, Lin-yu NI, Jin-bao LI

“…The limit of node itself and deployment environment of WSN result in the node was prone to failure and diffi-cult to maintain.In the tree-based data collection process,the node failure or lin congestion could result in higher com-munication delay,or even data loss.To solve this problem,a strategy for data collection was proposed which used forest as the routing structure.Firstly,an algorithm for the construction of forest was proposed,and then collect data through trees in the forest.Theoretical analysis and simulation results show that,the method could reduce the loss of data in the data collection process effectively,in the case of 25 fault nodes,the amount of data collected by forest routing structure of 3 trees compared to the amount of data collected from the connected dominating set is more than 55%,and reduce the la-tency of data collection.…”
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Superpotential of three dimensional N $$ \mathcal{N} $$ = 1 heterotic supergravity by Xenia de Ia Ossa, Magdalena Larfors, Matthew Magill, Eirik E. Svanes

“…We confirm that extrema of this functional correspond to supersymmetric heterotic compacti:fications on manifolds of G2 structure in the large volume, weak coupling limit to first order in a'. …”
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Nanostructural theory of metal melts. Foundry production and metallurgy by E. I. Marukovich, V. Yu. Stetsenko

“…In this theory, the main structural elements are not atoms, but nanocrystals. …”
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Exploring how papaya juice improves meat tenderness and digestive characteristics in Wenchang chickens by Zihan Zhang, Yucan Wu, Chunhui Zhang, Feng Huang

“…The objective of this study was to examine the effects of papain in papaya juice on the tenderness, structure and digestive characteristics of chicken meat. …”
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The Influence of the Covid-19 Pandemic on the Professional Identities of Health Care Workers by Shushentha Naidoo, Shaun Denvor Ruggunan

“…Six individuals participated in 60-min semi-structured interviews. Three themes emerged from this study. …”
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Analysis on Impact Stress Calculation of Second Combination of the Dual Ratchet Clutch by Shi Hao, Li Zhengminqing, Chen Liqiang

“…On this basis, the influence of parameters such as the double ratchet structure on it was analyzed. The research results can provide reference for the design of dual ratchet clutches.…”
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Cournot–Bertrand Duopoly Model: Dynamic Analysis Based on a Computed Cost by S. S. Askar, Ahmed M. Alshamrani

“…Due to unsymmetrical structure of the game’s map, global analysis gives rise to complicated basin of attraction for some attracting sets. …”
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Performance analysis of broadband self-interference cancellation at RF domain in co-frequency co-time full duplex systems by Jun WANG, Hong-zhi ZHAO, Wan-zhi MA, You-xi TANG, Chao-jin QING

“…Due to the lack of performance analysis of the RF domain broadband self-interference cancellation algorithms in the co-time and co-frequency full duplex system,the multi-tap RF domain self-interference cancellation structure were considered,and the optimal solutions of its parameters to minimize the residual interference signal power were discussed,then its achievable interference cancellation capability was analyzed.By analysis and simulation,the performance of the multi-tap structure was associated with the interference bandwidth,the carrier frequency,and the differences between the multi-tap delays and multipath delays of the self-interference channel.The greater the signal bandwidth is,or the larger the differences between the multi-tap delays and multipath delays are,the worse the interference cancellation performance is.Besides,the interference cancellation performance is periodic oscillation with the increase of carrier frequency.…”
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Design and Static Characteristic Analysis of a New Rubber Coupling by Yuetong Qiu, Yong Duan, Xiaodong Gu

“…The influence of the number of wedges and the structure of hole on the strength and static parameter of the coupling is analyzed. …”
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Research on the Supernetwork Equalization Model of Multilayer Attributive Regional Logistics Integration by Jian Xu, Yanna Yin, Xin Wen, Guozhi Lin

“…Based on the multi-level structure attributes of regional logistics, regional logistics integration presents complex features. …”
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Credit Risk Contagion in an Evolving Network Model Integrating Spillover Effects and Behavioral Interventions by Tingqiang Chen, Binqing Xiao, Haifei Liu

“…The model considers the spillover effects of infected investors, behaviors of investors and regulators, emotional disturbance of investors, market noise, and CRT network structure on credit risk contagion. We use theoretical analysis and numerical simulation to describe the influence and active mechanism of the same spillover effects in the CRT market. …”
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Framework of Reference for Chinese Language by T. L. Guruleva

“…The components of the communicative competence of the Chinese language and its level structure are studied. The author has performed a comparative analysis of the component structure and content of the components of the model of the communicative competence of the Chinese language with western, domestic and European models of communicative competence, as well as comparative analysis of the levels of the framework of reference for Chinese language with the levels of the Common European Framework of Reference for Languages. …”
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Stress Analysis of Four Kinds of Flexible T- typed Coupling Joint by Ren Ning, Wang Zhongying, Zhou Feng

“…The corner- filleted flexural hinge,the elliptical- rectangle flexural hinge,the parabola- rectangle flexural hinge and the hyperbolic- rectangle flexural hinge are used in the structure of the flexible T-typed coupling joint. In order to explore their load- bearing,the finite element model is set up based on the solid element SOLID92,and the corresponding boundary conditions are used. …”
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