Studies on TTS produced by nonsteady-state noises
نویسندگان
چکیده
منابع مشابه
Temporary threshold shifts produced by exposure to low-frequency noises.
Groups of human subjects were exposed for 8 or 24 h to an octave-band noise centered at 63, 125, or 250 Hz. For a 24-h exposure at 84 dBA, temporary threshold shifts (TTS) increased for 8-12 h and then either decreased or remained constant. Although TTS was less than 20 dB, complete recovery for many of the subjects required as long as 48 h. Accordingly, the higher level exposure which was plan...
متن کاملStudies on Polyethers Produced by Red Algae
Two novel squalene-derived triterpenes, spirodehydrovenustatriol (3) and 14-keto-dehydrothyrsiferol (4) were isolated from the red alga Laurencia viridis, together with two new and unusual C(17) terpenoids, adejen A (5) and B (6). These truncated structures possess structural similarities with other known squalene metabolites and their biogenetic origin has been proposed on the basis of an oxid...
متن کاملA method for leukokinetic study in the nonsteady state.
In these studies, the DF32P leukokinetic is obtained. This technique has been technique has been modified so that successfully employed in the study of the neutrophil kinetics may be studied in the early phase of cortisol-induced granulononsteady state. In order to achieve this cytosis, allowing measurement of cell modification, an acid citrate solution was flow rate in and out of the circulati...
متن کاملNonsteady state oxygen transport in engineered tissue: implications for design.
Engineered tissue constructs are limited in size, and thus clinical relevance, when diffusion is the primary mode of oxygen transport. Understanding the extent of oxygen diffusion and cellular consumption is necessary for the design of engineered tissues, particularly those intended for implantation into hypoxic wound sites. This study presents a combined experimental and computation model to p...
متن کاملExperimental validation of measurements of glucose turnover in nonsteady state.
The aim of the present experiments is to validate, in conscious dogs, the tracer infusion methods of measuring nonsteady turnover rates. This was done in nine experiments performed in four normal dogs by infusing isotopically labeled glucose (2-3H, 6-3H, 1-14C) and monitoring the concentrations of both the labeled and unlabeled substances. The validation is based on the observation that a high ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sangyo Igaku
سال: 1968
ISSN: 0047-1879,1881-1302
DOI: 10.1539/joh1959.10.4_271_2