physical properties of four common iranian varieties of canola seeds (hyola, okapi, orient and slm) were evaluated as a function of their moisture contents. the average seed length and thousand seed mass varied linearly from 1.925 to 2.262 mm and from 3.06 to 4.84 g, respectively. the average diameter, geometric mean diameter, and sphericity varied non-linearly from 1.475 to 1.911 mm, 1.625 to ...

background and objectives: kefiran (kef) is a water-soluble polysaccharide that can form transparent film however, it is brittle. therefore, in order to improve the mechanical properties of kefiran film, a mixture with other polymers can be offered. the expansion of mixed systems can propose kefiran and polyvinyl alcohol (pvoh) as a new composite film. materials and methods: solutions of 20 gra...

Information about the frequency, nature, and extent of acidbase abnormalities in infants with congenital heart disease is limited. Gootman et al. (1963) reported four cases with Fallot's tetralogy, pulmonary atresia, transposition of the great vessels, and severe pulmonary stenosis. All were cyanosed at the time of investigation and had a low pH (7.05-7.28) due to base depletion. Rudolph and Da...

INTRODUCTION It has long been known that changes in the hydrogen ion concentration ([H+]) and carbon dioxide tension (Pco2) of the blood affect respiration. These alterations in ventilation are probably produced by a chemical stimulus at more than one site (Lambertsen et al., 1961). The presence of arterial chemoreceptors in relation to the carotid sinus and aortic arch is well known. Recently,...

Previous studies have characterized the changes in acid-base equilibrium in dogs exposed over a prolonged period to a 12 per cent carbon dioxide atmosphere (1). Plasma bicarbonate concentration rose in a gradual curvilinear fashion over several days and became stabilized at maximal levels of 35 to 38 mEq per L. This adaptive response was not influenced by the level of sodium chloride intake. Af...

The effect of diets based predominantly on alkaline ash foods was studied in 51 NIDDM subjects. This particular dietary regimen aimed not only at controlling hyperglycaemia in diabetics, but also managing associated disorders like obesity and hypertension by correcting the acidbase imbalance existing in the body. The study was conducted on 27 males and 24 females suffering from non-insulin depe...

Arterial blood gas sampling is a very important investigation in the assessment of a patient’s acidbase status and oxygenation in acute and chronic bronchial asthma. It is the gold standard test which measures amounts of oxygen and carbon dioxide as well as the pH of the blood while it also evaluates the effective delivery of oxygen to the blood by the lungs and effective elimination of the car...

Primary diarrhea and septicemia are the 2 most common disease syndromes in neonatal calves. Differentiating between the 2 is difficult but vital, in order to determine prognosis and appropriate treatment. Both syndromes generally present with watery diarrhea, acidbase derangements, and/or negative energy balance. Depressed mentation and recumbency can occur with either disease if acidosis, hypo...