A chaotic digital signature algorithm based on a dynamic substitution box by Rolando Flores-Carapia, Víctor Manuel Silva-García, Manuel Alejandro Cardona-López, Miguel Gabriel Villarreal-Cervantes

“…Since the required inverse is for the Diffie-Hellman session key, it always exists and can be precomputed per communication rather than per message. …”
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Mixture Ratio Design Optimization of Coal Gangue-Based Geopolymer Concrete Based on Modified Gravitational Search Algorithm by Daming Zhang, Fangjin Sun, Tiantian Liu, Zhonghao Xu

“…Coal gangue geopolymer concrete contains many mineral admixtures and alkaline activators; the concrete mixture ratio design has always been a complex problem. The framework of the mix design optimization by the proposed method is established in this work. …”
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Clinical outcomes of neuroendoscopic resection of brain abscess guided by electromagnetic navigation among patients presenting at Jieyang People's Hospital in China by Mindong Huang, Jiandan Zou

“…How to enhance the surgical effect and the positive rate of bacterial culture has always been our objective. Aim: This study explored the surgical outcome of neuroendoscopic resection of brain abscess under the guidance of electromagnetic navigation and how to increase the positive rate of bacterial culture. …”
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ISSUES AND CHALLENGES OF INTEGRATING TOURISM INTO REGIONAL DEVELOPMENT PLANS by Alexandra-Carmen HODISAN, Alina BADULESCU, Elena HERTE

“…Development issues have always been considered among the most important challenges in most countries of the world, and especially for poor and developing countries. …”
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A Study on Dynamic Characteristics of Satellite Antenna System considering 3D Revolute Clearance Joint by Zhengfeng Bai, Jijun Zhao

“…However, the axial clearance in an imperfect revolute joint is always ignored. In this work, the revolute joint is considered as a 3D spatial clearance joint with both the radial and axial clearances. …”
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Wellbore Fracture Mode and Fracture Pressure Drilled in Depleted Reservoir by Kai Zhao, Junliang Yuan, Ming Liu, Chuanliang Yan, Liangbin Dou, Gang Bi, Runsen Li, Wei Gao

“…For the vertical well, fracture pressure is no longer a single linear reduction with reservoir depletion; instead, a three-step and two-step reduction may appear, and for the directional well, the fracture pressure is not always decreased; the other patterns such as increase and first increase then decrease may also appear for the wells drilled in reverse and strike fault stress regimes.…”
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Effects of Nanofilled Particle Forms and Dispersion Modes on Properties of Carbon-Based Energy Storage Composites by Jia Yu, Hui Li, Li Kong, Hongji Zhu, Qingshan Zhu, Haoqing Wang

“…How to improve the thermal conductivity of phase change materials (PCMs) is always the key to thermal control technology. At present, the thermal conductivity of PCMs has two ways to improve: one is to fill the matrix with high thermal conductivity and the other is to fill nanoparticles. …”
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Environmental risk assessment using FMEA and entropy based on TOPSIS method: a case study oil wells drilling by Negar Afzali Behbahani, Mazdak Khodadadi-Karimvand, Afarin Ahmadi

“…Drilling is among the major processes of exploration, description, and development of oil and gas reservoirs with a strategic significance in the oil industry. It has also always been a major challenge in the oil industry. …”
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A method for mining over-limit patterns of low voltage in users based on hierarchical affinity propagation clustering by SHEN Shuhao, ZHONG Qing, XU Zhong, WANG Gang, LI Haifeng, WANG Longjun

“…Due to the complexity and the ever-changing nature of voltage, the over-limit patterns of low voltage are always inherently unknown in users. A pattern mining method for low voltage in users based on hierarchical affinity propagation clustering (HAP) is proposed in this paper. …”
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New Product Presale Strategies considering Consumers’ Loss Aversion in the E-Commerce Supply Chain by Chongfeng Lan, Jianfeng Zhu

“…The conclusions of this article show that the presale strategy is not always optimal but depends on the parameters of the market and the type of consumers. …”
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Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants by Fayaz Ahmad Dar, Naveed Ul Mushtaq, Seerat Saleem, Reiaz Ul Rehman, Tanvir Ul Hassan Dar, Khalid Rehman Hakeem

“…Plants being sessile are always exposed to various environmental stresses, and to overcome these stresses, modifications at the epigenetic level can prove vital for their long-term survival. …”
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Decade-Long Changes in Disparity and Distribution of Transit Opportunity in Shenzhen China: A Transportation Equity Perspective by Qingfeng Zhou, Donghui Dai, Yaowu Wang, Jianshuang Fan

“…Efficiency and equity have always been the two points of focus of transport projects. …”
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Research on Closed-Loop Supply Chain with Competing Retailers under Government Reward-Penalty Mechanism and Asymmetric Information by Xiao-qing Zhang, Xi-gang Yuan, Da-lin Zhang

“…The relationship between two retailers’ retail price is affected by many complicated factors. (3) The WEEE buyback price and WEEE recovery rate with high fixed recycling cost (H-type) are always higher than that of low fixed recycling cost (L-type), respectively, which means that the H-type fixed recycling cost has scale advantages; the greater the reward-penalty intensity and the fiercer the competition, the more obvious the scale advantages under certain condition. (4) The retailers’ competition can not only guide WEEE recycling but also improve retailers’ profits. …”
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University Environment in Student Assessments: Case of the Russian University of Transport by M. Yu. Bykov, V. Ya. Krasnikovskiy, N. Yu. Matveeva, E. V. Yaryna

“…The novelty of the obtained data is due to the fact that the answers to an open question always differ from the opinions received in the course of polls with pre-proposed answers, and make it possible to identify hidden trends in public opinion. …”
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Secondary School Learners’ Transition to the University: A Qualitative Research Approach by Mbulaheni Paul Tshisikhawe, Buyisani Dube

“…The transition of learners from secondary school to university education, while inevitable, has always been marred by myriad uncertainties and challenges. …”
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Minimizing Honey Bee Exposure to Pesticides by James D. Ellis, Jeanette Klopchin, Eileen Buss, Frederick M. Fishel, William H. Kern, Catharine Mannion, Eugene McAvoy, Lance S. Osborne, Michael Rogers, Malcolm Sanford, Hugh Smith, Phillip Stansly, Lukasz Stelinski, Susan Webb

“…The goal in using a pesticide is to achieve maximum benefit (success) with minimum negative impact, and these factors should always be considered in pesticide selection. This publication is written (1) to help assure the sustainability of both bees and agriculture by informing beekeepers, pesticide users, and the general public about the often complex relationship between pollinators (specifically bees) and pesticides, (2) to offer guidance for improved communication between beekeepers and pesticide users, (3) to offer pollinator risk-reducing strategies for growers and other applicators when using pesticides, and (4) to provide clarity in laws, labeling, and associated definitions. …”
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Effect of single ethanol administration on behavior and the consumption and preference of ethanol in tame and aggressive rats by R. V. Kozhemyakina, S. G. Shikhevich, A. Cagan, R. G. Gulevich

“…However, data obtained with experimental animals do not always confirm this statement. Model strains of Norway rats selected for tame and aggressive attitude to humans are some of the models for investigation of relationships among anxiety, the function of the hypothalamus – pituitary – adrenal (HPA) axis, and predisposition to alcohol addiction. …”
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Delayed Development of Coronary Ostial Stenosis following Surgical Aortic Valve Replacement: A Case Report of Unusual Presentation by Doosup Shin, Kevin Huang, Igor Sunjic, Michael Berlowitz, Xavier Prida

“…Symptoms typically appear within the first 6 months and almost always within a year after SAVR. We report an unusually delayed presentation of non-ST segment elevation myocardial infarction due to coronary ostial stenosis 22 months after SAVR. …”
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Lateral Response Comparison of Unbonded Elastomeric Bearings Reinforced with Carbon Fiber Mesh and Steel by Ali Karimzadeh Naghshineh, Ugurhan Akyuz, Alp Caner

“…It has also been determined that the classical equation for lateral stiffness based on linear elastic behavior assumptions developed for elastomeric bearings does not always apply to the fiber-reinforced ones.…”
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UTILIZATION OF UNIVERSITY HEALTH CARE SERVICES AMONG UNDERGRADUATE STUDENTS IN GOMBE STATE UNIVERSITY-NIGERIA by HASSANA Y. BELLO, NASIRU ANAS, ABDULAZEEZ USMAN, FUNGO, W. ELKA

“…The time given to students in the clinic always clashes with lectures. The study revealed the types of illnesses taken students to university clinic include indigestion/conspiration, cold fever, malaria fever, typhoid fever, headache and general body pain, feminal problems and antenatal services among pregnant women. …”
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