Mix Design With Low Bearing Capacity Materials by Gianluca Dell’Acqua, Mario De Luca, Francesca Russo, Renato Lamberti

“…Correlations based on linear regression were then performed to determine the optimal combination of the properties measured with dependent CBR variables and Max Dry Density (MDD) to be predicted for low-volume roads. …”
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Features of blood pressure variability and arterial stiffness in hypertensive men with androgen deficiency by V. A. Vizir, A. S. Sadomov, O. V. Nasonenko

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Adaptation of potato cultivars to phosphorus variability and enhancement of phosphorus efficiency by Bacillus subtilis by Leangsrun Chea, Mohammad Alhussein, Petr Karlovsky, Elke Pawelzik, Marcel Naumann

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Variable expressivity of congenital longitudinal radial deficiency and spinal dysraphism in monozygotic twins by Gürsel Leblebicioğlu, Sevim Balci, Akin Uzümcügil

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Air Quality, Atmospheric Variables and Spread of COVID-19 in Delhi (India): An Analysis by Abhishek Dutta, Wanida Jinsart

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Online Algorithm for Deriving Heart Rate Variability Components and Their Time–Frequency Analysis by Krzysztof Adamczyk, Adam G. Polak

“…Heart rate variability (HRV) containing four components of high (HF), low (LF), very low (VLF), and ultra-low (ULF) frequencies provides insight into the cardiovascular and autonomic nervous system functions. …”
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Improved variable step-size LMS algorithm based on hyperbolic tangent function by Jianwu ZHANG, Hao YU, Qianhua ZHANG

“…In order to improve that the LMS algorithm for determining step size cannot satisfy both rapid convergence and low steady-state misalignment errors,a variable step size algorithm (IVSSLMS) based on an improved hyperbolic tangent function was proposed.The step size feedback factor and the correlation value of the error signal were used to adjust the step size,and the problems of slow convergence speed and poor anti-noise ability of the fixed-step size algorithm was overcame.The performance and parameters settings of the proposed algorithm were analyzed.The simulation results show that IVSSLMS has a faster convergence rate,lower steady-state error and better system tracking capability than the existing variable step size algorithms under high and low SNR conditions.…”
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Experimental Research on Variable Stiffness Property of Hydraulic Ball Joint for Rail Vehicles by Xingwu DING, Wei WEI, Jiling BU, Shiqiang WANG, Bo ZOU, Tao WANG

“…The test results showed that this hydraulic ball joint can achieve low stiffness at low frequency and high stiffness at high frequency, and this property is strongly related to excitation amplitude and pre-load. …”
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Recent Sarcopenia Definitions‐Variability in Prevalence and Disability Associations in Peritoneal Dialysis Patients by Sasiwimon Meenetkum, Sarinya Boongird, Piyatida Chuengsaman, Sirinapa Songsrakaew, Sirarat Katesomboon, Kanda Sriudom, Prapimporn Chattranukulchai Shantavasinkul, Wisit Chaveepojnkamjorn, Jiraluck Nontarak, Chagriya Kitiyakara

“…Using AWGS2019 component thresholds, 64.6% had low physical performance, 58.6% had low muscle strength and 22.7% had low muscle mass. …”
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Synaptic Variability Introduces State-Dependent Modulation of Excitatory Spinal Cord Synapses by David Parker

“…The relevance of neuronal and synaptic variability remains unclear. Cellular and synaptic plasticity and neuromodulation are also variable. …”
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NONPARAMETRIC METHOD OF RECONSTRUCTING PROBABILITY DENSITY ACCORDING TO THE OBSERVATIONS OF A RANDOM VARIABLE by A. D. Kryzhanovsky, A. A. Pastushkov

“…However, for multi-vertex distributions its convergence rate is also low. Similar conclusions can be drawn regarding the method proposed in the work of Vapnik V.N. …”
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Orbital and suborbital temperature variability in the central Mediterranean across the Pliocene/Pleistocene transition. by Elena Zanola, Teresa Rodrigues, Sergio Bonomo, Patrizia Ferretti, Eliana Fornaciari, Agata Di Stefano, Alessandro Incarbona, Nereo Preto, Isabella Raffi, Luca Capraro

“…Alternatively, it may be interpreted as the resonance (i.e., harmonics) of the low-latitude precessional forcing in mid-latitude regions. …”
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Effect of Health Literacy on Antiviral Treatment of Hepatitis B: Instrumental Variable Analysis by Hanchao Cheng, Shiyang Liu, Zhitao Wang, Qiyou Wu, Xin Wang, Polin Chan, Zhongdan Chen, Simon Luo, Yinghua Li, Jing Sun

“… Abstract BackgroundChina is a country with a high burden of hepatitis B (Hep B) but a low treatment rate. One of the key reasons for the low treatment rate is the inadequate health literacy (HL) of the people, which may affect the awareness and knowledge of Hep B and its treatment, as well as the ability to actively and correctly seek medical resources. …”
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Maize seedling emergence in response to climatic variability in a tropical rainforest area by Chris Adegoke FAYOSE, Morakinyo Abiodun Bamidele FAKOREDE

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Baseline Maternal and Newborn Variables in a Birth Cohort Study in Southern Brazil by Paulo Floriani Kramer, Elisa Maria Rosa de Barros Coelho, Lívia Mund de Amorim, Gabriela Fernandes Kern dos Santos, Priscila Humbert Rodrigues, Carlos Alberto Feldens

“…Objective: Describe baseline maternal and newborn variables in a birth cohort study. Material and Methods: A birth cohort study was conducted in Canoas, Brazil. …”
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The Effects of Spatial Resolution Variability of Digital Elevation Models on Flood Hazard Analysis by Hasan Özdemir, Abdullah Akbaş

“…While the model time and average computational errors from low resolution to high resolution increased, the water extent and the spatial distribution of the hazard classes produced for people and buildings decreased. …”
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A comparative study between metformin and insulin on biochemical variables in diabetic patients by Maha Elttayef Jasim, Noor Essam Abdul-Razzaq

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Performance Analysis of a Reciprocating Refrigeration Compressor Under Variable Operating Speeds by Willian T. F. D. da Silva, Vitor M. Braga, Cesar J. Deschamps

“…Variable-speed reciprocating compressors (VSRCs) have been increasingly used in domestic refrigeration due to their ability to modulate cooling capacity and reduce energy consumption. …”
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Heart rate variability and increased risk for developing type 2 diabetes mellitus by Penčić-Popović Biljana, Ćelić Vera, Ćosić Zoran, Pavlović-Kleut Milena, Čaparević Zorica, Kostić Nada, Milovanović Branislav, Šljivić Aleksandra, Stojčevski Biljana

“…The aim of this study was to evaluate the association between heart rate variability (HRV) and slightly increased risk for DM2. …”
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Investigation of the spatial distribution of deterministic chaos in some meteorological variables across Nigeria by Matthias Idugba Echi, Emmanuel Vezua Tikyaa, Eweh Jnr. Eweh, Alexander A. Tyovenda, Tertsea Igbawua

“…In this study, the spatial variation of dynamical complexities in selected meteorological variables over Nigeria were investigated. Quantitative tools of nonlinear analysis such as correlation dimension, Lyapunov exponents and approximate entropy were implemented on daily mean values of meteorological variables recorded across Nigeria from 1982-2020. …”
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