نتایج جستجو برای: standard penetration test spt
تعداد نتایج: 1291404 فیلتر نتایج به سال:
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Nasal exfoliative cytology is a complementary tool in diagnostics of allergic (AR) and non-allergic (NAR) rhinitis. The aim of the study was to determine the usefulness of the nasal cytology in patients sensitive to common inhalant allergens with positive SPT(+) and negative SPT(-) (Skin Prick Tests) depending on the symptoms of intermittent and persistent rhinitis. The study was performed in a...
Pulmonary O2 uptake kinetics during "step" exercise have not been characterized in young, sprint-trained (SPT), athletes. Therefore, the objective of this study was to test the hypotheses that SPT athletes would have (i) slower phase II kinetics and (ii) a greater oxygen uptake "slow component" when compared with endurance-trained (ENT) athletes. Eight sub-elite SPT athletes (mean (+/-SD) age=2...
T paper develops a framework for measuring “tipping”—the increase in a firm’s market share dominance caused by indirect network effects. Our measure compares the expected concentration in a market to the hypothetical expected concentration that would arise in the absence of indirect network effects. In practice, this measure requires a model that can predict the counterfactual market concentrat...
This paper examines strategies of standard software vendors, in view of the existence of network effects on standard software markets. In particular, we analyze if and under which conditions penetration pricing can be considered as a promising strategy. Our work is based on a simulation model, which provides the opportunity to examine the impact of alternative pricing strategies on the distribu...
OBJECTIVE Assessed the convergent and discriminant validity of a water load symptom provocation test (WL-SPT) in creating visceral sensations similar to the naturally occurring sensations experienced by children with functional abdominal pain. METHODS Participants were pediatric patients with functional abdominal pain (N = 110) and healthy school children (N = 120) between the ages of 8 and 1...
Reported cases of allergic contact dermatitis caused by methylenediphenyl diisocyanate (MDI) have increased and thereby increased the need for adequate skin protection. Current standardized permeation and penetration test methods give information about efficacy of protective materials against individual components of the polyurethane systems. They do not give information of what kind of clothin...
STUDY OBJECTIVE Positional therapy (PT) is an effective therapy in positional obstructive sleep apnea syndrome (POSAS) when used, but the compliance of PT is low. The objective of this study was to investigate whether a new kind of PT is effective and can improve compliance. METHODS 29 patients were treated with the Sleep Position Trainer (SPT), 26 patients with the Tennis Ball Technique (TBT...
The city of Chone, being situated on the Ecuadorian coast, was affected due to close-by epicenter earthquake 16 April 2016, which reached a magnitude Mw 7.8. This catastrophic event presented settlements in ground, sand boils and land subsidence, most damaging variety civil works among these several buildings. main objective current study is select data using standard penetration test (SPT) for...
The penetration result obtained on a filter test stand depends on several factors. Two of these are challenge aerosol size distribution and the particle detector used to measure the particle size and concentration. Some filter testers employ a monodisperse aerosol challenge while others use a polydisperse challenge. Some particle detectors are based on particle counting while others are based o...
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