منابع مشابه
the washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولMicrobial prevalence in domestic humidifiers.
The prevalence of viable thermophilic bacteria and actinomycetes and mesophilic fungi was examined in 145 samples from 110 domestic humidifiers. A total of 72 and 43% of furnace and console humidifier samples, respectively, contained viable thermophilic bacteria, whereas 60 and 72% of these samples produced mesophilic fungal growth. Thermophilic actinomycetes were recovered from seven humidifie...
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Bistability is common in nonlinear dynamical systems, but there have been no reports of intrinsic instabilities in black-body emission of optically excited media. Intrinsically bistable photo-luminescence has been reported however in Yb-doped heavy metal halide crystals at cryogenic temperatures and also in room temperature experiments in rare-earth-doped laser glass and transition metal laser ...
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Over the last two decades several publications have reported outbreaks of interstitial lung disease caused by inhalational exposure to a chemical, usually at work, but occasionally in a domestic situation. These outbreaks frequently follow a change in formulation, which may be minor, of a chemical already being used in the workplace, or a change in process leading to its aerosolisation. In 2006...
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The aim of this study was to test the usefulness of hygroscopic condenser humidifiers on secretion and on inspired gas temperature in tracheostomized patients. Forty spontaneously breathing chronically tracheostomized patients were divided into two groups: Group 1 received a hygroscopic condenser humidifier connected to the tracheostomy, 24 h daily for 10 days; Group 2, without any protection s...
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ژورنال
عنوان ژورنال: Science
سال: 1917
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.46.1185.262