BACKGROUND The identification of anaerobic metabolism in critically ill patients is a challenging task. Observational studies have suggested that the ratio of venoarterial PCO2 (Pv-aCO2) to arteriovenous oxygen content difference (Ca-vO2) might be a good surrogate for respiratory quotient (RQ). Yet Pv-aCO2/Ca-vO2 might be increased by other factors, regardless of anaerobic metabolism. At presen...

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Correspondence: Ewa Skopińska-Różewska, Department of Pathology, Biostructure Center, Medical University, Chałubińskiego 5, 02-004 Warsaw, Poland, Email: [email protected] Abstract Rhodiola quadrifida (Rq) roots and rhizomes are traditional natural drugs used in Asia as adaptogens and antidepressants. The aim of this work was to study the in vivo effect of aqueous and 50% hydro-alcoholic extr...

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We give predictions for the ratio RQ(x,Q2)=FLQ(x,Q2)/F2Q(x,Q2) at small values of Bjorken variable x in first three orders perturbation theory. show an approximate x-independence RQ(x,Q2) low and non-large Q2 (Q2 < 8--10 m2Q), irrespectively on gluon density a proton used calculations. This observation could be useful subsequent phenomenological studies heavy flavor production future lepton-had...

Friction and wear tests were performed on AISI 1045 steel specimens with different initial roughness parameters, machined by a creep-feed dry grinding process, to study the friction and wear behavior on a pin-on-disc tester in dry sliding conditions. Average surface roughness (Ra), root mean square (Rq), skewness (Rsk) and kurtosis (Rku) were involved in order to analyse the influence of the fr...

The methanol-burning lung model has been used as a technique for generating a predictable ratio of carbon dioxide production (VCO2) to oxygen consumption (VO2) or respiratory quotient (RQ). Although an accurate RQ can be generated, quantitatively predictable and adjustable VO2 and VCO2 cannot be generated. We describe a new burner device in which the combustion rate of methanol is always equal ...

Skin status of produce is important in determining fruit quality. Sensory evaluation is often used to express this characteristic. A new method, atomic force microscopy (AFM), was proposed to denote the changes of skin status. Arithmetic roughness (Ra) and root mean square roughness (Rq) of ‘Jinxiu’ yellow peach (prunus persicu L. Batsch.) were analysed by AFM. The Ra and Rq values increased wi...