• made
  • All spectral measurements of deep-sea fish visual pigment made to date, and on which the observed correlations with environmental variables are based, however, have been recorded at atmospheric pressure. (biologists.org)
  • depth
  • It is likely, therefore, that the pressures experienced at depth will affect opsin structure and may, thereby, affect visual pigment absorption characteristics, particularly the wavelength of maximum absorbance (λ max) . (biologists.org)
  • However
  • However, in certain circumstances, head elevation puts the brain-injured individual at risk for secondary cerebral injury because of impaired arterial blood pressure and compromised cerebral perfusion pressure (CPP). (thefreelibrary.com)
  • effects
  • It has been shown that increased production of cAMP, prostaglandin E 2 , or prostacyclin may mediate the effects of compressive pressure on cells in culture. (bmj.com)
  • development
  • Elevated intraocular pressure has been proposed to be an important risk factor for the development of glaucomatous optic neuropathy 7 8 and many ocular cells are exposed to constant variations of intraocular pressure, which generate mechanical forces affecting cell behaviour. (bmj.com)