نتایج جستجو برای: reflux condensation method

تعداد نتایج: 1674407  

Journal: :iranian journal of catalysis 2014
javad safaei-ghomi hossein shahbazi-alavi mohammad reza saberi-moghadam abolfazl ziarati

zrp2o7 nanoparticles (nps) as an efficient catalyst have been used for the preparation of 1,6-diamino-2- oxo-4-phenyl-1,2-dihydropyridine-3,5-dicarbonitrile derivatives via one-pot coupling of hyrazine hydrate, ethyl cyanoacetate, malononitrile and aromatic aldehydes under reflux conditions in ethanol. using this method we obtained low reaction times, easy isolation of the targeted molecules, e...

Background and objectives: Gastroesophageal reflux is a common chronic disease that impairs individuals’ quality of life, wherein patients should receive prolonged, and sometimes lifelong, treatment with chemical drugs, that in addition to high costs they can lead to side effects in the long term .Hawthorn fruit is one of the drugs used in traditional medicine to relieve reflux symptoms and to ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2001
javad azizian hassan kefayati morteza mehrdad khosrow jadidi yaghob sarrafi

a facile one-pot method with good yield for the synthesis of 2,4-dichloroquinoline and some related new derivatives by condensation of the appropriate primary aromatic amine with malonic acid in presence of excess phosphorus oxychloride is described.

Journal: :Medicra (Journal of Medical Laboratory Science/Technology) 2021

One of the Fabaceae family that has potential as medicinal plant is white Turi (Sesbania grandiflora (L.) Pers.).The purpose this study was to determine content secondary metabolites which can be extracted using a various extraction methods.The method used are digestion, percolation, reflux, soxhlet, infusion, and decoction extraction. The plants come from Mojosari, Mojokerto.The results initia...

Journal: :Journal of vascular surgery 2003
Peter Neglén Tara L Thrasher Seshadri Raju

OBJECTIVE To assess the importance of iliac venous outflow obstruction in limbs with and without concomitant deep or superficial reflux, we performed a retrospective analysis of data contemporaneously entered into a set time-stamped electronic medical records program. MATERIAL AND METHOD Four hundred forty-seven limbs underwent iliac vein stenting of chronic, nonmalignant obstruction when gre...

2017
Michael Yap Unwanabong Nseyo Hena Din Madhu Alagiri

INTRODUCTION AND OBJECTIVE Multiple options exist for the surgical management of vesicoureteral reflux (VUR). We report on our 10-year experience using the inguinal approach to extravesical ureteral reimplantation (EVR). MATERIALS AND METHODS Patient characteristics of age, gender, and reflux grade were obtained and outcomes of operative time, hospital stay, and radiographic resolution were a...

2017
Seung Kim Hong Koh Joon Soo Lee

Background/Aims Neurologically impaired patients frequently suffer from gastrointestinal tract problems, such as gastroesophageal reflux disease (GERD). In this study, we aimed to define the risk factors for GERD in neurologically impaired children. Methods From May 2006 to March 2014, 101 neurologically impaired children who received 24-hour esophageal pH monitoring at Severance Children's H...

Journal: :Brazilian journal of otorhinolaryngology 2013
Sandra Doria Xavier Júlio Patrocínio Moraes Claudia Alessandra Eckley

OBJECTIVE To study the prevalence of signs and symptoms of reflux in snorers with suspected OSA. METHOD This cross-sectional study enrolled 74 patients assessed positive for OSA with the Berlin questionnaire. The subjects were followed up at the sleep disorder ward of a university center. Studied variables included the BMI, the Epworth sleepiness scale, the reflux symptom index (RSI), the ref...

Journal: :American journal of physiology. Gastrointestinal and liver physiology 2008
Sudip K Ghosh Peter J Kahrilas James G Brasseur

The mechanical force relationships that distinguish normal from chronic reflux at sphincter opening are poorly understood and difficult to measure in vivo. Our aim was to apply physics-based computer simulations to determine mechanical pathogenesis of gastroesophageal reflux. A mathematical model of the gastroesophageal segment (GES) was developed, incorporating the primary anatomical and physi...

Journal: :iranian journal of pharmaceutical sciences 0
fatemeh moeini research institute for studies in islamic and complementary medicine, iran university of medical sciences, tehran, iran. ali akbar jafarian school of medicine, iran university of medical sciences, tehran, iran. najmeh aletaha school of medicine, tehran university of medical sciences, tehran, iran. mohammad kamalinejad school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. nima naderi department of pharmacology and toxicology, school of pharmacy, shahid beheshti university of medical sciences, tehran, iran. mohammad babaeian school of pharmacy, shahid beheshti university of medical sciences, tehran, iran.

background and objectives: gastroesophageal reflux is a common chronic disease that impairs individuals’ quality of life, wherein patients should receive prolonged, and sometimes lifelong, treatment with chemical drugs, that in addition to high costs they can lead to side effects in the long term .hawthorn fruit is one of the drugs used in traditional medicine to relieve reflux symptoms and to ...

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