نتایج جستجو برای: دهة 1390
تعداد نتایج: 15718 فیلتر نتایج به سال:
1 Baumann MH, Sahn SA. Medical management and therapy of bronchopleural fistulas in the mechanically ventilated patient. Chest 1990; 97:721-28 2 McManigle JE, Fletcher GL, Tenholder MF. Bronchoscopy in the management of bronchopleural fistula. Chest 1990; 97:123538 3 York EL, Lewall DB, Hi,ji M, Gelfand ET, Modry DL. Endoscopic diagnosis and treatment of postoperative bronchopleural fistula. Ch...
To investigate the mechanism of impaired myocardial function after long-term pressure overload, we studied cardiac muscle mechanical contraction and intracellular calcium transients using the bioluminescent indicator aequorin. Left ventricular papillary muscle preparations were examined from three groups of rats: 1) aging spontaneously hypertensive rats (SHR) with clinical and pathological evid...
الگوهای جنسیّتی از جمله الگوهایی است که می تواند در فرایند تغییر دستخوش دگرگونی شده و نقش های سنّتی ایفا شده توسط هر جنس به نقش هایی نوین تغییر یابد. هندوستان دومین کشور پر جمعیت دنیا و با الگوهای متعدد اجتماعی و فرهنگی است که در طی دهه های گذشته تغییرات چشمگیری را در زمینه های متعدد تجربه کرده است. در این مطالعه هدف اصلی شناخت روند تغییر الگوی اجتماعی زنان هند طی سه دهة گذشته بود که با استناد به...
Results There were 1390 negative crossmatch and 130 positive crossmatch cases. There was no difference in overall graft survival, although early survival rates were lower in the positive crossmatch group, with the maximum difference at 6 months: 0.76 (95% confidence interval, 0.74-0.78) for a negative crossmatch versus 0.68 (95% confidence interval, 0.61-0.77) for a positive crossmatch. These d...
Adolescence is one of the most important periods of life. A transitional period in which a person moves from the childhood safety towards responsibility and privileges of adulthood [1]. In this period, due to puberty the individual is faced with rapid physical changes and changes in emotions and feelings [2]. Statistics show that the largest generation of adolescents in terms of number, are rel...
We report an octave-spanning coherent supercontinuum (SC) fiber laser with excellent noise and polarization properties. This was achieved by pumping a highly birefringent all-normal dispersion photonic crystal compact high-power ytterbium femtosecond at 1049 nm. system generates ultra-flat SC spectrum from 670 to 1390 nm power spectral density higher than 0.4 mW/nm extinction ratio of 17 dB acr...
____________________________________________________________________________________________________________________ 1. MD of Hematology and Oncology, Genetic Researcher Center in Non-Communicable Disease, Zahedan University of Medical Sciences, Zaheedan ,Iran, [email protected] 2. MSc of Hematology, Hematology Department, Allied Medical School, Tehran University of Medical Sciences, T...
The change in the loading margin to voltage collapse when line outages occur is estimated. First a nose curve is computed by continuation to obtain a nominal loading margin. Then linear and quadratic sensitivities of the loading margin to each contingency are computed and used to estimate the resulting change in the loading margin. The method is tested on a critical area of a 1390 bus system an...
We present a system detecting the presence of unconstrained man-made objects in unconstrained subsea videos. Classification is based on contours, which are reasonably stable features in underwater imagery. First, the system determines automatically an optimal scale for contour extraction by optimising a quality metric. Second, a two-feature Bayesian classifier determines whether the image conta...
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