An approach for enhancing the operating bandwidth of classic dual-band power divider (PD) is proposed by using metamaterial (MTM) units. To overcome limitation EM simulation and improve design efficiency, we propose an artificial neural network (ANN) that enables inverse prediction MTM-PD geometry from its desired physical response. In ANN approach, convolutional long short-term memory are comb...

BACKGROUND Heart rate variability (HRV), a measure of cardiac autonomic tone, has been associated with cardiovascular morbidity and mortality. Short-term studies have shown that subjects exposed to higher traffic-associated air pollutant levels have lower HRV. OBJECTIVE Our objective was to investigate the effect of long-term exposure to nitrogen dioxide on HRV in the Swiss cohort Study on Ai...

background: in some areas of ramsar, a city in northern iran, residents receive a much higher annual radiation exposure than is permitted for radiation workers. induction of adaptive response in residents of ramsar has been reported previously. in this study induction of such a response in short term exposure to high background levels of gamma radiation is investigated. materials and methods: f...

Continuous denture wearing, lack of adequate hygiene and infection with Candida albicans (C. albicans) are among the etiological factors Denture stomatitis (DS). The management DS ranges from implementation oral measures removal predisposing to use antifungals, depending on severity inflammation. Aim study: This study aimed evaluate short-term effect heat killed lactobacillus acidophilus - Lact...

in this paper, let $l$ be a completeresiduated lattice, and let {bf set} denote the category of setsand mappings, $lf$-{bf pos} denote the category of $lf$-posets and$lf$-monotone mappings, and $lf$-{bf cslat}$(sqcup)$, $lf$-{bfcslat}$(sqcap)$ denote the category of $lf$-completelattices and $lf$-join-preserving mappings and the category of$lf$-complete lattices and $lf$-meet-preserving mapping...

OBJECTIVE Previous studies on short-term time series of heart rage suggest an inverse relationship between age and spectral powers of heart rate variability in various frequency bands. In this study, we examined the relationship between age (6-61 years) and long-term heart rate variability. METHODS We obtained 24-h Holter ECG in 33 healthy human subjects (11 children and 22 adults). The heart...

Two mathematical methods, the Fourier and wavelet transforms, were used to study the short term cardiovascular control system. Time series, picked from electrocardiogram and arterial blood pressure lasting 6 minutes, were analyzed Part of the results were reported at the 53rd Autumn Meeting of Italian Society of Physiology, 16-19 September, 2002, Ferrara, Italy. A short abstract was published i...

Background and objective: University students are in a period of transition from late adolescence to adulthood, which is the time experience new environments roles university. Accordingly, they may great deal stress emotional anxiety. This study examined changes stress, low frequency (LF) high (HF) component, affect university after short-term urban forest by season.Methods: was conducted an lo...

OBJECTIVE This study investigated whether short-term exposure to a passive online software application of purported subtle energy technology would affect heart rate variability (HRV) and associated autonomic nervous system measures. METHODS This was a randomized, double-blinded, sham-controlled clinical trial (RCT). The study took place in a nonprofit laboratory in Emeryville, California. Twe...

The physiological significance of spectral and fractal components of spontaneous heart rate (HR) variability in the fetus remains unclear. To examine the relationship between circadian rhythms in different measures of HR variability, R-R interval time series obtained by fetal ECGs were recorded continuously over 24 h in five pregnant sheep at 116-125 days gestation. Conventional measures of sho...