The impact effect is a crucial issue in civil engineering and has received considerable attention for decades. For the first time, this study develops hybrid machine learning models that integrate novel Extreme Gradient Boosting (XGB) model with Particle Swam Optimization (PSO), Grey Wolf Optimizer (GWO), Moth Flame (MFO), Jaya (JA), Multi-Verse (MVO) algorithms predicting permanent transverse ...

introduction: it has been shown that joint click, an initial and common finding in internal derangement (id), respond to neither conservative treatment nor surgical intervention. this raises the question as to whether it must be treated in the absence of other pertinent signs and symptoms, so the aim of this study was to investigate and compare the mri findings of tmj in both normal subjects an...

abstract for seismic design, it is important to estimate the, maximum lateral displacement (inelastic displacement) of the structures due to earthquakes for several reasons. seismic design provisions estimate the maximum roof and storey drifts occurring in major earthquakes by amplifying the roof displacement and drifts of the structures obtained by elastic analysis subjected to seismic design ...

Liquids handling is an important issue in biomedical analysis. We propose two different devices for ultrasonic droplets displacement. Each one involve a different physical phenomenon. The first device proposed is a low frequency standing waves using flexural plate waves (FPW). In this case, acoustic radiation pressure is involved for the displacement. The second one uses high frequency travelli...

computer model of the patellofemoral joint was developed and the effects on the anterior displacement of the tibial tuberosity were investigated. the input geometrical and verification data for the model were obtained form an experimental study on a cadaver knee, mounted in an instron machine. the computer program found the configuration of the patellofemoral joint which satified both the geome...

This article addresses the legal reconfigurations of refuge and its consequences for people displaced by war state violence. Within Western countries signatory to 1951 Convention Relating Status Refugees, refugee protection has traditionally served as a solution conflict-induced displacement offering path permanent residence citizenship. Yet, in wake recent global “refugee crises,” several have...

Earthquakes are a major external factor that induce landslides. In order to systematically study the dynamic effects and failure mechanism of anti-dip bedding rock slopes (the slope trend is same as joint trend, while dip direction opposite direction) under seismic action (as well spatial structural planes in slopes), three-dimensional (3D) discrete-element numerical calculations were performed...

background and aims. predicting the teeth eruption time is a valuable tool in pediatric dentistry since it can affects scheduling dental and orthodontic treatments. this study investigated the relationship between the eruption time of first primary and permanent teeth and the variation in the eruption time considering socioeconomic status (ses) in a 9-year population- based cohort study. materi...

We study the spending profile of workers who experience both a positive transitory income shock (lump-sum severance pay) and negative permanent (layoff). Using de-identified expenditure employment data from Brazil, we show that increase at layoff by 35 percent despite experiencing 14 long-term loss. find high sensitivity to cash-on-hand across consumption categories for several sources variatio...