نتایج جستجو برای: نسبت مولی ppb
تعداد نتایج: 163369 فیلتر نتایج به سال:
We report a rare case of 9-month-old girl who presented with a choking episode and was found to have an incidental finding of a lung cyst and iron deficiency anemia leading to the diagnosis of pleuropulmonary blastoma (PPB) and a jejunal hamartoma. Our patient is the eighth that has been reported with the association of PPB with jejunal hamartoma and the first one in the radiological literature...
STUDY OBJECTIVES In maxillary nosocomial sinusitis (MNS) related to severe sepsis, nitric oxide (NO) concentration in the maxillary sinuses is drastically reduced secondarily to a downregulation of type-2 NO synthase. NO plays a major role in nonspecific immune defense of sinuses. We therefore aimed to study maxillary NO concentration during the treatment of MNS with drainage, daily lavage, and...
The present study was conducted to observe the seasonal variation in aflatoxin M1 and nutritional quality of milk along informal marketing chains. Milk samples (485) were collected from three different chains over a period of one year. The average concentrations of aflatoxin M1 during the autumn and monsoon seasons (2.60 and 2.59 ppb) were found to be significantly higher (standard error of the...
This application note describes a fast analytical method for determination of halosulfuron-methyl using QuEChERS and capillary electrophoresis tandem mass spectrometry (CE/MS/MS). The method was developed and validated for halosulfuron-methyl in green and yellow bell peppers. It showed good linearity (R2 > 0.999) from 5.0 to 500 ppb for the analytical curves prepared in background electrolyte a...
اختلاط ترکیبات مختلف اغلب منجر به ایجاد محلول های غیر ایده آل می شود. انحراف از حالت ایده آل را می توان از طریق مطالعه خواص فزونی بررسی نمود. در این پایان نامه، خواص ترمودینامیکی فزونی مخلوط های دو تایی به منظور درک و تفسیر بر هم-کنش های مولکولی بین اجزاء تشکیل دهنده مخلوط و نیز برای آزمایش کارایی مدل های ترمودینامیکی و قابلیت پیش بینی معادله حالت، مورد بررسی قرار گرفت. حجم مولی فزونی، v_m^e، ح...
BACKGROUND Primary ciliary dyskinesia (PCD) is associated with chronic airway inflammation resulting in bronchiectasis. METHODS The levels of exhaled nitric oxide (eNO), carbon monoxide (eCO) and nasal NO (nNO) from bronchiectatic patients with PCD (n=14) were compared with those from patients with non-PCD bronchiectasis without (n=31) and with cystic fibrosis (CF) (n=20) and from normal subj...
Column-averaged dry-air mole fractions of methane (XCH4), retrieved from Greenhouse gases Observing SATellite (GOSAT) short-wavelength infrared (SWIR) spectra, were validated by using aircraft measurement data from the National Oceanic and Atmospheric Administration (NOAA), the US Department of Energy (DOE), the National Institute for Environmental Studies (NIES), the HIAPER Pole-to-Pole Observ...
چکیده استفاده از حشره کش ها و علف کش ها در کشاورزی و پرورش ماهی برای کنترل علف های هرز و حشرات ناخواسته به سرعت در حال افزایش است. آفت کش های دیازینون و کارباریل حشره کش هایی هستند که معمولاً در منطق? سیستان برای مبارزه با حشرات مورد استفاده قرار می گیرند. روتیفرها به ویژه brachionus calyciflorus و b. plicatilis از جمله مهم ترین موجودات الگو برای آزمایشات سم شناسی می باشند. در این تحقیق سطح پاس...
New approaches to block the function of tumor stromal cells such as cancer-associated fibroblasts and pericytes is an emerging field in cancer therapeutics as these cells play a crucial role in promoting angiogenesis and tumor growth via paracrine signals. Because of immunomodulatory and other antitumor activities, IFNγ, a pleiotropic cytokine, has been used as an anticancer agent in clinical t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید