نتایج جستجو برای: ph meter
تعداد نتایج: 192961 فیلتر نتایج به سال:
Purpose: The aim of this study was to evaluate the relationship between autoimmune liver diseases and esophageal motor disorders (EMD).
 Materials Methods: 63 patients diagnosed with primary biliary cholangitis (PBC), sclerosing (PSC) hepatitis (AIH) followed up in our hospital were included study. control group consisted 33 patients. Upper gastrointestinal endoscopy, motility pH meter tes...
INTRODUCTION Mobile phones hold considerable promise for delivering evidence-based smoking cessation interventions that require frequent and objective assessment of smoking status via breath carbon monoxide (Breath CO) measurement. However, there are currently no commercially available mobile-phone-based Breath CO meters. We developed a mobile-phone-based Breath CO meter prototype that attaches...
Maintaining Dissolved Oxygen (DO) levels in the hydroponic plant nutrient solutions can be done using nanobubble technology. Manual monitoring time-consuming and measurement results are less accurate. Therefore, a system is needed to monitor air temperature, humidity, water pH, concentrations, DO levels. Several stages this research preparation, design, sensor calibration, implementation. Air t...
The realization of physiologically-relevant advanced in vitro models is not just related to the reproduction of a three-dimensional multicellular architecture, but also to the maintenance of a cell culture environment in which parameters, such as temperature, pH, and hydrostatic pressure are finely controlled. Tunable and reproducible culture conditions are crucial for the study of environment-...
To determine whether alpha-stat or pH-stat strategy should be used, 20 patients undergoing coronary artery bypass grafting during moderate hypothermic hemodilutional cardiopulmonary bypass were studied. The carbon dioxide management during bypass was randomly done according to alpha-stat strategy in 10 patients (i.e., temperature-uncorrected PaCO2 was kept near 40 mm Hg and uncorrected pHa was ...
Background This study compared the solubility and the pH of different root canal sealers in vitro. Material and Methods BioRoot™RCS, TotalFill BC Sealer, MTA Fillapex, SealapexTM, AH Plus, EasySeal, Pulp Canal Sealer™ and N2 were tested. Similar specimens were prepared using ring molds with an internal diameter of 20 ± 0,1 mm and a height of 1,5 ± 0,1 mm and digitally weighted to register the...
INTRODUCTION This in vitro study measured and compared pH and phosphate and calcium ions release of a new endodontic material (CEM cement), mineral trioxide aggregate (MTA), and Portland cement (PC) using UV-visible technique, atomic absorption spectrophotometry methods, and pH meter, respectively. MATERIALS AND METHODS Each material was placed in a plastic tube (n=10) and immersed in a glass...
HE RECENT EMPHASIS on disorders of acid-base metabolism has necessitated a reappraisal of those urinary constituents which represent elimination of acid or base. The conventional expression for urinary acid excretion (“net acid excretion”) is titratable acid bicarbonate + ammonia (T.A. CO2 + NH4 ) (1). It has been the contention of this laboratory that acid excretion is more inclusively represe...
BACKGROUND Fermentable carbohydrates and microorganisms in the plaque play a significant role in the pathogenesis of dental caries. Oral clearance of sugars and salivary pH is affected by the presence of plaque. AIMS AND OBJECTIVES This study was conducted to study the effect of the presence of plaque on the salivary clearance of sucrose and on salivary pH. MATERIALS AND METHODS The study d...
Sensors play the most important role in observing changes in an environment they are a part. They detect even the smallest changes and send the information to other electronic devices. Making sure that these sensors provide an accurate output is equally crucial, as the data it measures and collects are used for analysis. Until now, calibrating sensors has been done manually by following a seque...
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