نتایج جستجو برای: but propylene glycol caused significant increase in cows
تعداد نتایج: 17129325 فیلتر نتایج به سال:
A device for automatically maintaining any desired concentration of triethylene or propylene glycol vapor in air is described. It can also be used to measure very rapidly the glycol content of room air. This instrument should greatly facilitate tests of the efficacy of glycol vapors in preventing air-borne infections.
E-cigarette use has exploded in the past years, especially among young adults and smokers desiring to quit. While concerns are mostly based on the presence of nicotine and flavors, pulmonary effects of propylene glycol and glycerol inhalation, the main solvents of e-liquid have not been thoroughly investigated. In this preclinical study, mice were exposed 2 h daily for up to 8 weeks to vapors o...
Thedensity(ρ) and speed of sound (u)of the binarymixture (diethylene glycol monoethyl ether (carbitol) + propylene glycol (PG)) have been reported at T= (288.15, 298.15, 308.15 and 318.15) K. The excess molar volume ( ) and isentropic compressibility deviation (Δκs) were calculated using the measured data. The obtained values of ( ) and (Δκs) are negative and positive,...
The labour market, occupational safety and health, and work organisation are our main fields of activity. The creation and use of knowledge through learning, information and documentation are important to the Institute, as is international cooperation. The Institute is collaborating with interested parties in various development projects. The areas in which the Institute is active include: • la...
The discovery of natural biocomponents from plants with antibacterial activity on endodontic microbiota may lead to new therapies. This study evaluated the antibacterial activity of a phytotherapeutic agent prepared from an ethyl acetate fraction (AcOEt) extracted from Arctium lappa. This agent was compared with calcium hydroxide as an intracanal dressing. Twenty-seven maxillary canines were in...
the ability of composing a coherent and extended piece of writing in second language is considered as a fundamental factor to convey information and ideas of learners through the academic issues. although learners may achieve a perfect academic writing skill through assigning the l2 tasks in content based instruction, but demonstration of their abilities may be related to their ability in l1 es...
The permeability of the plasma membrane to water and cryoprotectants is one of the most important factors for determining suitable conditions for vitrification of mammalian oocytes and embryos. In mouse oocytes and early stage embryos, water and cryoprotectants move slowly, principally by simple diffusion. In contrast, in morulae (and probably blastocysts), water, glycerol, and ethylene glycero...
The methyl pentose, L-rhamnose, is known to be fermented by a number of bacteria, but little information is available concerning the metabolic steps involved in this fermentation. An indication of the pathway of rhamnose metabolism was provided by the finding of Kluyver and Schnellen (1937) that propylene glycol was a major product in the fermentation by Bacillus rhamnosifermentans. Since 50 pe...
the ability to speak two languages in the world is a remarkable achievement. there is a good reason to believe that bilingualism is the norm for the majority of people in the world because 70% of the earth’s population are supposed to be bilingual or multilingual. various investigations have shown that the native language impacts foreign word recognition, and this influence is adapted by the de...
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