Dynamics of Unilateral and Bilateral Control Systems with State Feedback for Renewable Resource Management by Mingzhan Huang, Shouzong Liu, Xinyu Song, Lansun Chen

“…In this paper, mathematical models for the management of biological resources based on a given predator-prey relationship are proposed, and two types of control strategies, unilateral and bilateral control with impulsive state feedback, are studied. The existence of the order-1 homoclinic orbit, order-1 periodic solution, and bifurcation of homoclinic of the unilateral control system are obtained, and the attraction region of this system is also discussed. …”
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Apparatus for control, state of exception and tourist bodies: tourism as a biopolitical phenomenon by Dominic Lapointe

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J. M. Gratale on N. Coles’ s Interpreting Political Events in the United States

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SUGGESTIONS ON THE APPLICATION OF CLUSTER TECHNOLOGIES AT THE MODERN STAGE OF DEVELOPMENT OF THE ECONOMY OF THE CITY OF MOSCOW by A. M. Kovalev, O. A. Afanasieva

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Issue analysis of contracts termination in Russian state and municipal public procurement procedures by A. Ya. Geller

“…The article points out the problem of quality of interaction between the customer and the supplier of goods, works or services in the sphere of state and municipal public procurement procedures of Russian Federation. …”
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Seeking for the Leading Actor on the Cosmic Stage: Galaxies versus Supermassive Black Holes by Angela Bongiorno, Francesco Shankar, Francesca Civano, Isabelle Gavignaud, Antonis Georgakakis

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Experimental Investigation of the Effect of Two-Stage Peltier Application on the Temperature of a Microprocessor by Fatih Uysal, Sinan Çobaner

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Do State-owned Enterprises in Brazil Require a Risk Premium Factor? by Rafaela Vitoria, Aureliano Angel Bressan, Robert Aldo Iquiapaza

Subjects: “…state ownership…”
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An Electrochemical Impedance Spectroscopic Study of the Passive State on AISI 304 Stainless Steel by A. Fattah-alhosseini, S. Taheri Shoja, B. Heydari Zebardast, P. Mohamadian Samim

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Brain state forecasting for precise brain stimulation: Current approaches and future perspectives by Matteo De Matola, Carlo Miniussi

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IFAS Community Development: Empowering Your Community, Stage 2, Organization of Sponsorship by Mark A. Brennan, Christine Regan

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Road Surface State Recognition Based on SVM Optimization and Image Segmentation Processing by Jiandong Zhao, Hongqiang Wu, Liangliang Chen

“…In this paper, the road surface states are categorized into 5 types including dry, wet, snow, ice, and water. …”
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Effective Stress Factor Analysis of Proppant for Multi-stage Fracturing in Horizontal Wells by Bo Cai, Rui Gao, Chunming He, Jin Chen, Ning Cheng, Tiancheng Liang, Guifu Duan, Chuanyou Meng, Haifeng Fu, Haoyu Zhang

“…In order to determine the effective stress factor of proppants during the multi-stage hydraulic fracturing operation in horizontal wells and select the appropriate proppant type, the analysis of the effective stress characteristics of proppants is carried out. …”
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FREQUENCY PREDICTION OF STAGED COMBUSTION ROCKET ENGINE BASED ON RBF NEURAL NETWORK by DU FeiPing, TAN YongHua, CHEN JianHua

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Statistical analysis of the fluctuations of an initial-state model with independently distributed hot spots by Nicolas Borghini, Hendrik Roch, Alicia Schütte

“…Abstract We determine the uncorrelated modes that characterize the fluctuations in a semi-realistic model for the initial state of high-energy nuclear collisions, consisting of hot spots whose positions are distributed independently. …”
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The Current State of the Art and Advancements, Challenges, and Future of Additive Manufacturing in Aerospace Applications by Melkamu Tadesse Getachew, Menberu Zeleke Shiferaw, Bekalu Sintayehu Ayele

“…This paper provides an overview of the advancements, state-of-the-art, challenges, and future of additive manufacturing in the aerospace industry. …”
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Response to: Comment on “Resilience of Complex Systems: State of the Art and Directions for Future Research” by Luca Fraccascia, Ilaria Giannoccaro, Vito Albino

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RETRACTED: Scientific analysis of the morphological state of cotton varieties in the experiment before defoliation by Ubaydullayev Madaminjon, Usmonov Nodirjon, Mirzaikromov Mirzabobur, To‘xtashev Farrux, Umarqulova Barchinoy, Ergashev Nodirbek

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Late-stage diversification strategy for the synthesis of peptide acids and amides using hydrazides by Shoko Tanaka, Mizuki Kanno, Yosuke Tashiro, Tetsuo Narumi, Nobuyuki Mase, Kohei Sato

Subjects: “…late-stage diversification…”
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Computational thinking in STEM education: current state-of-the-art and future research directions by Rasikh Tariq, Bertha Maria Aponte Babines, Jesus Ramirez, Inés Alvarez-Icaza, Fawad Naseer

“…This work analyzes the current state of pedagogical approaches with a special focus on project-based learning that develops computational thinking in STEM students. …”
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