This paper presents a new design for wideband circularly polarized (CP) spiral antenna array fed by differential aperture coupling. The excitation is realized two vias located at the lateral sides of transverse slot etched on lower substrate. proposed two-arm has smaller size compared to conventional antennas with several turns. presented single radiating element provides impedance bandwidth (|...

karyotypes of eleven iranian populations of trigonella foenum-graceum were investigated. somatic chromosome numbers of examined populations were determined as 2n = 14. chromosomal parameters were examined as follows: long arm length (tl), short arm, total chromosome length, arm ratio, r-value, form percentage of chromosome, total form percentage of karyotype. chromosomes were mostly metacentric...

OBJECTIVE To test whether simply asking people to rate the extent to which they anticipate feeling regret for not registering as an organ donor after death increases subsequent verified organ donor registration. METHOD There were 14,509 members of the general public (both registered and nonregistered donors) randomly allocated to 1 of 4 arms, each receiving different questionnaires. The no-qu...

BACKGROUND In recent years, various outcome adaptive randomization (AR) methods have been used to conduct comparative clinical trials. Rather than randomizing patients equally between treatments, outcome AR uses the accumulating data to unbalance the randomization probabilities in favor of the treatment arm that currently is superior empirically. This is motivated by the idea that, on average, ...

A circularly polarized (CP) wideband uniplanar crossed-dipole antenna is presented in this paper. The constitutes a pair of identical arms printed on the same plane dielectric substrate. Each component thin dipole that are perpendicular to each other and connected with folded stripline for generating CP radiations. rectangular stubs introduced one arm at center improve impedance-matching bandwi...

Purpose. The authors tried to point out the crucial factors determining swimming results in a 2000m front crawl race. Basic procedures. Two groups of subjects: G1 (16.8 ± 0.77 years) and G2 (14.7 ± 0.49 years) of 15 swimmers each took part in two incremental tests for assessing aerobic endurance of arms in arm cranking (V̇O 2max AR) and of legs in cycling (V̇O 2max LG). The applied procedure made...

OBJECTIVE The relationship between serum testosterone (T) levels, muscle mass and muscle force in eugonadal men is incompletely understood. As polymorphisms in the androgen receptor (AR) gene cause differences in androgen sensitivity, no straightforward correlation can be observed between the interindividual variation in T levels and different phenotypes. Therefore, we aim to investigate the re...

Volume mixing and isotope ratios secured with repeated atmospheric measurements taken with the Sample Analysis at Mars instrument suite on the Curiosity rover are: carbon dioxide (CO2), 0.960(±0.007); argon-40 ((40)Ar), 0.0193(±0.0001); nitrogen (N2), 0.0189(±0.0003); oxygen, 1.45(±0.09) × 10(-3); carbon monoxide, < 1.0 × 10(-3); and (40)Ar/(36)Ar, 1.9(±0.3) × 10(3). The (40)Ar/N2 ratio is 1.7 ...

BACKGROUND Satisfactory vascular access flow (Qa) of an arteriovenous fistula (AVF) is necessary for haemodialysis (HD) adequacy. The aim of the present study was to further our understanding of haemodynamic modifications of the cardiovascular system of HD patients associated with an AVF. The main objective was to calculate using real data in what way an AVF influences the load of the left vent...

We examine three variations of the regularization methods for response-adaptive randomization (RAR) and compare their operating characteristics. A power transformation (PT) is applied to refine the randomization probability. The clip method is used to bound the randomization probability within specified limits. A burn-in period of equal randomization (ER) can be added before adaptive randomizat...