Lung collapse upon expiration is prevented by the surface tension properties of pulmonary surfactant [l]. The effectiveness of surfactant in preventing alveolar collapse is dependent upon the phosphatidylcholine (PC) molecular species composition. The surfactant of premature infants contains reduced amounts of PC16:0/ 16:O and is inefficient at preventing alveolar collapse resulting in acute re...

The veracity of claims made by researchers and clinicians when reporting the impact lighting on vision other biological mechanisms is, in part, reliant accurate valid measurement devices. We aim to quantify intra- inter-watch variability a commercially available light sensor device which has been widely used photobiological research. Intra- differences were investigated between four Actiwatch S...

The current CIE colour rendering index (CRI) has been widely used to test the quality of light sources over 30 years. However, this method is outdated and problematic, especially for evaluating white light emitting diode (LED) sources. A psychophysical experiment was conducted to evaluate the quality of three D65 simulators. The results were also compared with the CRI and the other method, know...

ABSTRACT: A novel visual experiment for the analysis of the effect of different lights on the appearance of colours is presented. It could be the basis for the improvement of the Colour Rendering Index, it starts from the concept of unique hues and analyses the constancy or variations of unique hues under different real light sources. Analysed sources include incandescent lamp, a simple realiza...

AIM Low-level laser therapy (LLLT) is a therapeutic photobiostimulation with properties in reducing swelling, inflammation, and promoting tissue healing. The objective of this pilot study was to evaluate LLLT in sterile pyogranulomatous pododermatitis in five dogs. MATERIALS AND METHODS In each dog, one lesion was designated as the control (treated with a 0.0584% hydrocortisone aceponate spra...