Linear systems controlled by a nonlinear version of the PI algorithm are under study. The modified PI controller in question is known in the literature as the Super–Twisting (STW) algorithm (see Levant (1993)), and it belongs to the family of second order sliding mode controllers. The considered closed–loop system exhibits self–sustained stable oscillations (chattering) when the relative degree...

Disharmony in a family, which is the result of broken home, can have an impact on level individual psychological well-being. This study aims to describe well-being students who experience homes. uses qualitative method with case design. Participants were selected using purposive sampling technique characteristics being male and coming from home families. There three participants, namely BO, LC ...

The Pulsed Eddy Current (PEC) testing is an increasingly emerging nondestructive testing & evaluation (NDT&E) technique. The main purpose of this study is to improve the performance of defect edge identification of C-scan imaging technique utilizing the rectangular PEC sensor. When sensor scans along the defect, peak waves of response signals always present a crest and a trough in direction of ...

Background: Walking, sit-to-stand (STS) and sit-to-walk (STW) are all considered important functional tasks in achieving independence after stroke. Despite knowledge that sensitive measurement of movement patterns is crucial to understanding neuromuscular restitution, there surprisingly little information available about the detailed biomechanical characteristics of, relationships between, walk...

Electroacoustic resonators employing surface acoustic waves (SAW) are commercially widely used in RF filters, low noise frequency sources as well as various sensors. In all of these applications the resonance quality factor appears to be a limiting performance factor. Quite often practical Q factors are not limited by the materials, but by design deficiencies, enabling energy loss outside the r...

THE 1959 Mental Health Act emphasises the need to integrate psychiatric patients with the community at large rather than to isolate them from it, as hitherto. This identification with the normal community has been the Ministry of Labour's approach to the employment of disabled people since the time of the Disabled Persons (Employment) <4ct of 1944. For the past 17 years all disabled people, whe...

The relationship between nevirapine plasma concentrations and the durability of both viral suppression (VS) and selection of nevirapine primary resistance mutations (PRMs) was evaluated. A nevirapine trough concentration (Ctrough) of >4,300 ng/ml was found to predict longer VS. Patients with nevirapine Ctrough s ranging from 3,100 to 4,300 ng/ml had higher probabilities of developing PRMs than ...

OBJECTIVES The aim of this study was to develop and validate a population pharmacokinetic model for nevirapine in a population of HIV-infected adults and to evaluate the influence of nevirapine dosing regimen and patient characteristics on nevirapine trough concentration. METHODS HIV-infected adults receiving oral nevirapine for at least 4 weeks were included. A concentration-time profile was...

Studia Środkowoeuropejskie i Bałkanistyczne » 2022 Tom XXXI Recenzja monografii pod redakcjÄ Anny Ratke-Majewskiej Beaty Springer, Przemiany demokratyczne w Europie Środkowo-Wschodniej. Polska na tle państw regionu, FNCE, Poznań 2020 A