STUDY OBJECTIVES To evaluate features of the peak expiratory flow (PEF) test protocol, and to characterize patterns of reproducibility in multiple PEF measurements. DESIGN Cross-sectional study. SETTING University population. PARTICIPANTS Two hundred twenty-three healthy adults. INTERVENTIONS Participants recorded five PEF measurements in each of five sessions per day for 1 week. MEAS...

In this study, the use of pulsed electric field (PEF) for extraction polyphenols from mature Elaeagnus pungens ‘Limelight’ leaves is discussed. Optimization main parameters that affect process was carried out. More specifically, composition solvent (ethanol, water, and mixtures two at a 25% v/v step gradient) PEF-related (i.e., pulse duration, period, intensity) optimized. The obtained extracts...

Objectives: To investigate cardiorespiratory and inflammatory responses in male workers following exposure to welding fumes and airborne particles in actual workplace conditions. Materials and Methods: We measured blood leukocytes and their differential counts, platelet count, hemoglobin, sensitive C-reactive protein, fibrinogen, E-selectin, IL-(interleukin)1β, IL-6, IL-8, tumor necrosis factor...

Gastro-oesophageal (GO) reflux is believed to be a possible cause of nocturnal asthma. The aim of this study was to see if there is any correlation between the incidence of GO-reflux at night and nocturnal asthma. Thirty-seven adult patients with a history of nocturnal asthma for more than one hundred days a year and of reflux disease were evaluated using 24 h pH-monitoring of the oesophagus an...

To improve measurement precision and solve the question on projectile information extraction when projectile go through detection screen of photoelectric detection target, the wavelet analysis method was applied to process its information and look for its starting time in screen. The detection principle of photoelectric detection target was analyzed, the characteristic of wavelet analysis metho...

Recent years have seen growing interest in exploiting dualand multi-energy measurements in computed tomography (CT) in order to characterize material properties as well as object shape. Materials characterization is performed by decomposing the scene into constitutive basis functions, such as Compton scatter and photoelectric absorption functions. While well motivated physically, the joint reco...

Geant4 simulations were performed to determine electron binding energies in aluminum using two different implementation of the photoelectric effect: G4PotoElectricEffect and G4LowEnergyPhotoElectric. The incident photon energies used in the simulation were 20 eV, 100 eV, 1 keV and 2 keV. The binding energies of the knocked out electrons were calculated as a difference between photon incident en...

A 7 day short course ofottce daily 4OO ng pefloxacin (PEF) was contpared by a double blitrd dwntny technique against a standard 14 days course of 50 ng chloranphenicol (CAP) /kg Bflday itr four divided dosages for treat,nent of typhoid and paratyphoid fever. The purpose of the study was to evaluate objectively clitrical and bacteriological eficacy. A total of 79 patients were enrolled. Ottly S....

In this investigation, the influence of the application of pulsed electric fields (PEFs) of different intensities (3-7 kV/cm and 0-300 μs) on the carotenoid extraction from tomato peel and pulp in a mixture of hexane:acetone:ethanol was studied with the aim of increasing extraction yield or reducing the percentage of the less green solvents in the extraction medium. According to the cellular di...

Methods and results We compared survival in patients with HF-PEF with that in patients with HF-REF in a meta-analysis using individual patient data. Preserved EF was defined as an EF ≥ 50%. The 31 studies included 41 972 patients: 10 347 with HF-PEF and 31 625 with HF-REF. Compared with patients with HF-REF, those with HF-PEF were older (mean age 71 vs. 66 years), were more often women (50 vs. ...