نتایج جستجو برای: دهة 70 و 80

تعداد نتایج: 1099528  

2007
Vimal Singh

ةـصلاخلا : ةلاحلا رايعم ثحبلا اذه يف ضرعن – ةلاحلا حشرمُــل لماشلا يبراقتلا تابثلل غارفلا – يمقرلا غارفلا عبشملا يباسحلا ضئافلا مادختساب كلذو ةددحم ةميق اذ . دقو ماظنلل ةديدج ةيصاخ ءاصقتساب رايعملا قُـتشأ ةساردلا ديق . اس رايعم عم رايعملا اذه ةنراقمب انمق امآ جنيسو راآ نم لٍآ لَـبـقِ نم هضرع مت قب . دقو جنيسو راآ رايعم نم لقأ طباوض يذ يلاحلا رايعملا نأ ةنراقملا تنابأ . و نع حرتقملا رايعملا ةعاجن ان...

Journal: :The European respiratory journal 2002
J A Hardie A S Buist W M Vollmer I Ellingsen P S Bakke O Mørkve

The Global Initiative for Chronic Obstructive Lung Disease (GOLD) has defined stage I chronic obstructive pulmonary disease (COPD) as forced expiratory volume in one second/forced vital capacity (FEV1/FVC)% <70% and a FEV1% predicted of >80%. Stage 2 has been defined as FEV1/FVC <70% and a FEV1% pred of <80%. The authors examined the extent of COPD misdiagnosis using this definition in healthy,...

Journal: :Investigative radiology 2007
Sebastian Leschka Hans Scheffel Lotus Desbiolles Andre Plass Oliver Gaemperli Ines Valenta Lars Husmann Thomas G Flohr Michele Genoni Borut Marincek Philipp A Kaufmann Hatem Alkadhi

PURPOSE To evaluate reconstruction intervals and image quality in dual-source computed tomography (DSCT) coronary angiography for optimal placement of the ECG-pulsing window. MATERIALS AND METHODS DSCT coronary angiography was performed in 60 patients. Thirteen datasets were reconstructed in 5% increments from 20-80%. Two readers independently assessed image quality of each segment in each pe...

2014
Safwan H. Fasola Firas S. Al-Sharbaty

In this paper, the parameters of the LTE system in DL are investigated. These parameters include the effect of the Hybrid Adaptive Repeat and Request henceforth (HARQ) on the Signal to Noise Ratio (SNR), Block Error Rate (BLER), and throughput. The paper deals with three cases of Channel Quality Indicator (CQI): 3,7 and 15.The results showed that the HARQ procedure can improve the BLER and the ...

Journal: :مجلة العمارة والفنون والعلوم الإنسانیة 2018

Journal: :BMJ 1989
S B Rosalki

Serum carbohydrate-deficient transferrin (CDT) measurement is valuable for the identification of chronic excess alcohol consumption. CDT is increased in serum in approximately 50% of those classed as heavy drinkers and 70-80% of those defined as alcoholics. With abstinence, the serum CDT concentration reverts towards normal within approximately 2 weeks. Specificity for alcohol abuse ranges from...

Journal: :Plastic and reconstructive surgery 2005
Michael A Howard Peter G Cordeiro Joseph Disa William Samson Mithat Gonen Robin N Schoelle Babak Mehrara

BACKGROUND There are an increasing number of elderly patients requiring free tissue transfer. The risks of complex reconstructions in this patient population remain largely unknown. Therefore, the authors' reason for conducting this study was to review their experience with free tissue transfer in patients aged 70 years or older. METHODS A retrospective review of all free tissue transfers per...

Journal: :CoRR 2018
Ghaith Hattab Eugene Visotsky Mark Cudak Amitava Ghosh

The millimeter wave spectra at 71-76GHz (70GHz) and 81-86GHz (80GHz) have the potential to endow fifth-generation new radio (5G-NR) with mobile connectivity at gigabit rates. However, a pressing issue is the presence of incumbent systems in these bands, which are primarily point-topoint fixed stations (FSs). In this paper, we first identify the key properties of incumbents by parsing databases ...

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