نتایج جستجو برای: el hames method
تعداد نتایج: 1909564 فیلتر نتایج به سال:
The most important driver of climate variability is the El Niño Southern Oscillation, which can trigger disasters in various parts of the globe. Despite its importance, conventional forecasting is still limited to 6 mo ahead. Recently, we developed an approach based on network analysis, which allows projection of an El Niño event about 1 y ahead. Here we show that our method correctly predicted...
Objective: To evaluate whether a nasal gel, administered using a radial-hole inhaler, reaches the olfactory cleft, and if a different administration method influences distribution. Material and method: Sixteen healthy volunteers underwent a nasal endoscopy at 1 and 7 min after the administration of a intranasal gel, with a different method in each fossa. Results: No dye deposition was identifie...
یکی از روش های شناخته شده برای اندازه گیری، پیش بینی و مدیریت ریسک بازار، ارزش در معرض خطر است که در سال های اخیر مورد استقبال گسترده ای قرار گرفته است. اندازه گیری ریسک به شرایط اقتصادی و بازار وابسته است و از زمانی به زمان دیگر متغیر است. بنابراین محاسبه ریسک با در نظر گرفتن مدل های پیش بینی تلاطم بازار مطرح می شود. در این موارد، یکی از مفاهیم کلیدی ریسک بر پایه var ، مفهوم ارزش در معرض خطر ش...
[1] The amplitude of the El Niño-Southern Oscillation (ENSO) is known to fluctuate in long records derived from observations and general circulation models (GCMs), even when driven by constant external forcings. This involves an interaction between the ENSO cycle and the background mean state, which affects the climatological precipitation over the eastern equatorial Pacific. The changes in cli...
This study describes a method for off-line coupling of thin-layer chromatography (TLC) with electron impact ionization (El)-mass spectrometry for routine determination of pesticides in toxicology and forensic medicine. Six TLC solvent systems are described for 151 different pesticides, and 8-peak mass-spectra generated from full El mass spectra are listed.
Reported values of lung resistance (RL) and elastance (EL) in spontaneously breathing preterm neonates vary widely. We hypothesized that this variability in lung properties can be largely explained by both inter- and intrasubject variability in breathing pattern and demographics. Thirty-three neonates receiving nasal continuous positive airway pressure [weight 606-1,792 g, gestational age (GA) ...
Plants are often subjected to several environmental stresses throughout their life cycle. Adaptation of plants to saline conditions may be due to some salt-related changes in the pattern of gene(s) expression. The physiological role of stress induced proteins is not yet clearly understood. However, it is believed that these proteins allow plants to produce biochemical and structural adjustments...
This paper details the phenotypic, genotypic, and antibiotic sensitivity patterns of 88 Vibrio cholerae strains from Zimbabwe. Of the 88 strains, 83 were classified as "altered El Tor" and 5 as "hybrid El Tor" strains. All of the strains were susceptible to tetracycline, doxycycline, ciprofloxacin, and azithromycin by disc diffusion, but susceptibility to tetracycline and azithromycin diminishe...
Policosanol is a drug substance consisting of a mixture of very long chain alcohols (C24-C34) extracted and purified from sugar cane wax. A Gas Chromatographic method using a wide-bore capillary column, and 1-eicosanol as internal standard was developed and validated for determining policosanol in 5 and 10 mg film-coated tablets. The alcohols were analyzed as trimethylsilyl derivatives. The met...
OBJECTIVE To assess the concentration of faecal elastase-1 (EL-1) in pediatric patients with cystic fibrosis with mutation DeltaF508. METHODS Cross-sectional study with samples collected consecutively from 51 patients aged 4 months to 17 years old (mean 9.11±4.74); 32 (62.8%) patients were male. Clinical-demographic data were collected, as well as data on the type of mutation. Exocrine pancre...
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