نتایج جستجو برای: hepa filter test
تعداد نتایج: 926039 فیلتر نتایج به سال:
The aim of this study is to compare the diameters of proximal and distal common bile duct (CBD) using magnetic resonance cholangiopancreatography (MRCP). The results may help in the daily MR interpretation of CBD and hepa-
Treatment for 48 h of murine Hepa 1c1c7 cells in culture with the cancer chemopreventive oltipraz (1) followed by addition of CD(3)I and immediate cell lysis yields, by LC/MS analysis, three isotopomers of the methylated pyrrolopyrazine (2), a known human metabolite of oltipraz. The major isotopomer (58%) is the one containing two CD(3)- groups attached to the pendant sulfur atoms of the pyrrol...
Exposure to the environmental contaminant, 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), produces hydronephrosis in developing mice, the etiology of which involves hyperplasia within the ureteric luminal epithelium. Dysregulation of epidermal growth factor receptor (EGFR), EGF, and transforming growth factor-alpha expression has been implicated as playing a role in TCDD-induced hydronephrosis. In...
myocardial perfusion spect imaging with tc99m-sestamibi is the most accurate non-invasive means of detecting coronary artery disease and assessing the severity of perfusion abnormalities in the patients with coronary stenosis. though simple and straight forward the results produced by the technique is very much affected by the details being used. one of the main problems with the test, which ha...
چکیده ندارد.
This paper aims is to design an integrated navigation system constituted by low-cost inertial sensors to estimate the orientation of an Autonomous Underwater Vehicle (AUV) during all phases of under water and surface missions. The proposed approach relied on global positioning system, inertial measurement unit (accelerometer & rate gyro), magnetometer and complementary filter technique. Complem...
This study focuses on the effect of portable and large filter-based air cleaners (HEPA filters), which became popular indoors during COVID-19 pandemic, their suitability for classrooms (here 186 m3). The decay rates particle number concentration (PNC) were measured simultaneously at up to four positions in room. It was found that different outlet configurations units have an actual PNC removal ...
data suggest that the expression of different O antigens in E. coli or not these patients still were in a high efficiency particulate air (HEPA)–filtered environment. Indeed, in an LAF room, the patient from patient TB135 is not the result of plasmid-mediated serotype conversion, the common electrophoretic type, H antigen, eae genonot only breathes in air that is filtered through HEPA filters b...
In response to a lack of environmental combined nitrogen, the filamentous cyanobacterium Anabaena sp. strain PCC 7120 differentiates nitrogen-fixing heterocyst cells in a periodic pattern. HetR is a transcription factor that coordinates the regulation of this developmental program. An inverted repeat-containing sequence in the hepA promoter required for proheterocyst-specific transcription was ...
Abstract Introduction Airborne bacteria are a major source of wound contamination during penile prosthesis surgery. 80% found in the after surgery comes from air. Crystalline ultraviolet C (C-UVC) filter units were designed to disinfect and recirculate air operating room (OR). Objective We assess particle-reducing capacity C-UVC highly controlled setting office center Methods A particle counter...
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