Secure performance analysis of WCDMA systems over correlated Nakagami fading channels by Guangqiu LI, Zhanwan WANG, Tingjie REN, Shuaishuai LIU

“…In order to evaluate the security performance of wideband code division multiple access (WCDMA) over multiple-input and multiple-output fading channels,a time-saving and efficient solution is theoretical analysis.The exact analytical expressions of the non-zero security capacity probability and the security outage probability of WCDMA systems using space-time block codes and 2D Rake receivers (2D-Rake) on the relevant Nakagami fading channels was deduced.Using the above expressions,the effects of parameters such as the number of transmit and receive antennas,antenna correlation coefficient,Nakagami fading coefficient,and average path attenuation coefficient on the security performance of the WCDMA system could be quickly evaluated.The numerical calculation was in good agreement with the simulation results,which proved the correctness of the above theoretical analysis.The analytical expression of the asymptotic safety outage probability of WCDMA system was deduced.The results show that the security diversity gain of WCDMA system is the sum of the diversity gains on the separable paths of the main channel,and has nothing to do with the eavesdropping channel; the same for the constant multipath intensity profile The Nakagami fading channel is distributed,and the security diversity gain of the WCDMA system is the product of the number of received and transmitted antennas of the primary channel,the number of multipaths,and the Nakagami fading coefficient.…”
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Post-Soviet Features of Hungarian Administrative Sciences by Ádám Rixer

“…Our starting point is that the scientific field which does not have a clear relation to its own near past, may have neither a sound self-concept nor an exact vision of the future. One of the utmost weaknesses of Hungarian administrative sciences is the partial shortage of elaboration of inner processes after 1945 and the lack of systematic collection of scientifically relevant – but never published – documents of that period of time (1945–1990). …”
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Hem-o-lok Clips Migration: An Easily Neglected Complication after Laparoscopic Biliary Surgery by Jun-wen Qu, Gui-yang Wang, Zhi-qing Yuan, Ke-wei Li

“…Clip migration into the common bile duct (CBD) is a rare but well-established phenomenon of laparoscopic biliary surgery. The mechanism and exact incidence of clip migration are both poorly understood. …”
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Long COVID-19: Psychological symptoms in COVID-19 and probiotics as an adjunct therapy by Angel Yun-Kuan Thye, Loh Teng-Hern Tan, Jodi Woan-Fei Law, Priyia Pusparajah, Vengadesh Letchumanan

“…This review discusses the possible causes, prevalence, and risk factors of COVID-19 associated psychological manifestations, namely anxiety, depression, and post-traumatic stress disorder (PTSD). Although the exact cause is yet to be determined, it is likely multifactorial involving environmental, biological, and psychological factors due to the pandemic. …”
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Angularly Resolved Deep Brain Fluorescence Imaging Using a Single Optical Fiber by Israel J. De La Rosa, Mehdi Azimipour, Patrick K. Cullen, Fred J. Helmstetter, Ramin Pashaie

“…Signal-to-noise ratio of the measurements is improved by adapting the pulse compression technique and the theory of optimal filters. …”
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Exploring the non-classical symmetry, bifurcation with sensitivity analysis of a (3 + 1)-dimensional nonlinear evolution equation by Ibtehal Alazman, Manvendra Narayan Mishra, Badr Saad T. Alkahtani, Mati ur Rahman

“…While invariant solutions provide exact representations of certain dynamical states, bifurcation and chaos analyses offer insights into the system's intrinsic transitions and complexity. …”
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Quelle réflexivité les étudiants ingénieurs ont-ils à propos de leurs pratiques d’apprentissage? Analyse d’écrits réflexifs et propositions pour le renforcement des capacités réfle... by Lucie Gouttenoire, Anaïs Loizon

“…But the lack of shared culture of reflexivity, as well as students’ interest for exact sciences coupled with their difficulties in considering their own action as an objet to be thought, make it difficult to design pedagogical devices aiming at enhancing reflective abilities. …”
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Total Roman 2-Reinforcement of Graphs by M. Kheibari, H. Abdollahzadeh Ahangar, R. Khoeilar, S. M. Sheikholeslami

“…In particular, we determine the exact value of TR2R-numbers of some classes of graphs.…”
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The Endotoxin-Induced Neuroinflammation Model of Parkinson's Disease by Kemal Ugur Tufekci, Sermin Genc, Kursad Genc

“…Parkinson's disease (PD) is a common neurodegenerative disorder characterized by the progressive loss of dopaminergic (DA) neurons in the substantia nigra. Although the exact cause of the dopaminergic neurodegeneration remains elusive, recent postmortem and experimental studies have revealed an essential role for neuroinflammation that is initiated and driven by activated microglial and infiltrated peripheral immune cells and their neurotoxic products (such as proinflammatory cytokines, reactive oxygen species, and nitric oxide) in the pathogenesis of PD. …”
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An advection-diffusion-reaction size-structured fish population dynamics model combined with a statistical parameter estimation procedure: Application to the Indian Ocean skipjack... by Blaise Faugeras, Olivier Maury

“…The model is fully spatialized, andmovements are parameterized with oceanographical and biologicaldata; thus it naturally reacts to environment changes.We first formulate an initial-boundary valueproblem and prove existence of a unique positive solution. …”
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W poszukiwaniu „brakującego ogniwa” by Jacek Tomczyk

“…Surprisingly, the discussion which took place in the thirties and forties was an exact repetition of the earlier debate about Trinil's fossil! …”
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Nutritional Factors Related to Canine Gallbladder Diseases—A Scoping Review by Fabio Alves Teixeira, Kathleen Moira Aicher, Ricardo Duarte

“…Reports of medical management typically involve the use of a choleretic used to stimulate the flow of bile into the duodenum or substances that act as a “hepatoprotective” agent such as S-adenosylmethionine. …”
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Influence of Flexspline Tooth Profile Parameter of Double Circular Arc Harmonic Gear Drive on Backlash by He Xiaofei, Yang Yong, Huang Yanyan, Zhou Bo, Xiao Jichang, Zhou Qinghua, Xiong Lindong

“…In harmonic gear drive,backlash has a significant effect on transmission performance. Based on the exact conjugate method of harmonic drive,the changes of conjugate zone,circular spline conjugate tooth profile and backlash of harmonic drive with the variation of flexspline tooth profile parameters are studied. …”
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Impact of Artifacts Caused by Intraoral Dental Materials in Magnetic Resonance Imaging by Divya Josephraj, Ravindranath Vineetha, Priya Pattath Sankaran, Prakashini Koteshwara, Mathangi Kumar, Kalyana Chakravarthy Pentapati

“…The reliability of the intra- and interobserver was calculated, and Fischer's exact test was applied. P-value <0.05 was considered statistically significant. …”
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The hierarchical three-body problem at O G 2 $$ \mathcal{O}\left({G}^2\right) $$ by Mikhail P. Solon, Anna M. Wolz

“…We also derive new results for arbitrary masses in the rest frame of the distant particle. Our results are exact in velocity, and can be used in analyses involving both bound and unbound hierarchical triples in astrophysical systems.…”
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An Analysis of Chinese Transport Infrastructure Loans and Investment in ICT in Nigeria by Innocent .A. Ocholi, Nnamdi .S. Okonkwo

“…The paper discovered that the exact terms and conditions embedded in the performance and implementation frameworks were not disclosed. …”
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Dynamical analysis and optimal control of an multi-age-structured vector-borne disease model with multiple transmission pathways by Huihui Liu, Yaping Wang, Linfei Nie

“…First, the existence and uniqueness of the global positive solution of this model is discussed and the exact expression of the basic reproduction number $ \mathcal{R}_0 $ is obtained using the linear approximation method. …”
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Fractional Theoretical Model for Gravity Waves and Squall Line in Complex Atmospheric Motion by Liguo Chen, Liangui Yang

“…When the disturbance intensity and width reach a certain value, solitary wave formation takes place, which is exactly the squall line or thunderstorm formation observed in the atmosphere.…”
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Convergence and Quantum Advantage of Trotterized MERA for Strongly-Correlated Systems by Qiang Miao, Thomas Barthel

“…Here, we determine the scaling of computation costs for various critical spin chains which substantiates a polynomial quantum advantage in comparison to classical MERA simulations based on exact energy gradients or variational Monte Carlo. …”
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A Computational Approach to the Perimeter-Area Inequality in a Triangle by Tomás Recio, Carlos Ueno, María Pilar Vélez

“…Focusing on the computational complex and real algebraic geometry methods behind these tools, this study analyzes a geometric construction involving a triangle with arbitrary side lengths and area, investigating the automated derivation of the relationship between the area and perimeter of a triangle, and showing that only equilateral triangles satisfy the exact perimeter-area equality. The main contribution of this work is to describe the challenges, and potential ways to approach their solutions, still posed by the use of such automated, symbolic computation, methods in dynamic geometry, in particular concerning the discovery of loci of points that satisfy specific geometric conditions, suggesting relevant improvements for the future development of these symbolic AI-based educational tools in geometry.…”
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