نتایج جستجو برای: mechanical ventilations
تعداد نتایج: 236552 فیلتر نتایج به سال:
Introduction Concurrent infections or co-infections in patients diagnosed with Coronavirus Disease-19 (COVID-19) are not uncommon and predict a pejorative prognosis. A co-infection accounts for 1 out of every 5 cases COVID-19 increases the likelihood adverse health outcomes such as mechanical ventilations, ICU admissions, death. Specifically, Legionella spp. presents additional challenges becau...
C hest compressions are rarely needed in newly born infants, with an estimated occurrence of 0.08% for near-term and term deliveries; however, the consequences of a hypoperfused state on the brain and other organ systems can be devastating. 1 Newborns that require prolonged cardiac compressions with no signs of life beyond 10 minutes are at risk for exceptionally poor outcomes, with up to 83% m...
BACKGROUND Hands-Only cardiopulmonary resuscitation (CPR) is recommended for use on adult victims of witnessed out-of-hospital (OOH) sudden cardiac arrest or in instances where rescuers cannot perform ventilations while maintaining minimally interrupted quality compressions. Promotion of Hands-Only CPR should improve the incidence of bystander CPR and, subsequently, survival from OOH cardiac ar...
Where exactly is the chest compression, where does it begin, hen does it end, how deep does it go and at what rate are they erformed? In short – how good or bad is the chest compression? hese are some of the questions researchers ask themselves repeatdly. As well as these data, we need to know the proportion of esuscitation time spent giving quality compressions, the ratio of nterruptions and s...
in the present study, the influence of annealing temperature on mechanical properties and the microstructure of a high manganese austenitic steel (fe-30mn-4al-4si-0.5c) was investigated. x-ray diffractometry, optical and scanning electron microscopy, hardness and tensile tests were used to analyze the relationship between mechanical properties and microstructure after annealing process. the res...
BACKGROUND The present study evaluates whether the quality of advanced cardiac life support (ALS) is improved with an interactive prototype assist device. This device consists of an automated external defibrillator linked to a ventilator and provides synchronised visual and acoustic instructions for guidance through the ALS algorithm and assistance for face-mask ventilations. METHODS We compa...
in this study, aluminum (al) matrix reinforced with micro-particles (30 µm) and nano-particles (50 nm) boron carbide (b4c) were used to prepare al-2.5%wt., b4c nano-composite and micro-composite, respectively, using mechanical alloying method. the mixed powders were mechanically milled at 5, 10, 15 and 20 hrs. the xrd results indicated that the crystallite sizes of both the micro-composite and ...
چرخش صفحه پلاریزاسیون، یک موج اکوستیک در داخل یک کریستال منفرد با استفاده از تئوری (alpher & rubin) مورد مطالعه قرار داده شده است . عدم استفاده از تقریب الکترون آزاد منجر به پیدایش چرخش صفحه پلاریزاسیون موج اکوستیک میشود. میزان چرخش صفحه پلاریزاسیون، برحسب مقدار میدان مغناطیسی خارجی، و پارامتر (تعداد الکترون های هادی موثر برای هریون) بدست آمده است . حساسیت تشدید مکانیکی نسبت به تغییرات محاسبه ش...
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