abstract background: recent studies have suggested that oxidative stress (os) may have a contribution in the pathogenesis of endometriosis. however, the results of previous studies regarding os in endometriosis are controversial. the objective of this study was to compare the serum levels of os markers in endometriosis versus the control group. methods: this case-control study was carried out o...

There are several conceptual definitions of resilience pertaining to environmental systems and, even if resilience is clearly defined in a particular context, it is challenging to quantify. We identify four characteristics of the response of a system function to disturbance that relate to "resilience": (1) degree of return of the function to a reference level; (2) time taken to reach a new quas...

BACKGROUND The Health and Retirement Study is a national sample of Americans older than 50 years and their spouses. The present study evaluated cross-sectional and longitudinal data from January 2000 through December 2006. The objective of the study was to evaluate the roles of spouse-rated vs self-rated health as predictors of all-cause mortality among adults older than 50 years. METHODS A t...

Electrical Mechanical Systems for Command, Control, Communications. Essentially the area under the curve defined by the PDF of the PDF from t.The reduction of system reliability due to accumulated damage is quantitatively. THE reliability of a mechanical system may be defined as the.The estimation of reliability of mechanical systems under variable constraints. The probability density function ...

Although great effort is made in clinical trials to demonstrate statistical superiority of one intervention vs. another, insufficient attention is paid regarding the clinical relevance or clinical significance of the observed outcomes. Effect sizes are not always reported. Available absolute effect size measures include Cohen's d, area under the curve, success rate difference, attributable risk...

The pharmacokinetics of ofloxacin were investigated in eight healthy male volunteers. A single infusion (200 mg over 0.5 h) was performed on day 1, followed by a washout period of 2 weeks. Repeated administrations were performed for 4 days (200 mg every 12 h). Pharmacokinetic parameters were determined from the plasma decay curves of the single and the last of the multiple administrations. Oflo...

In this study, we evaluated the repeatability of pupil responses to colored light stimuli in healthy subjects using a prototype chromatic pupillometer. One eye of 10 healthy subjects was tested twice in the same day using monochromatic light exposure at two selected wavelengths (660 and 470 nm, intensity 300 cd/m(2)) presented continuously for 20 s. Pupil responses were recorded in real-time be...

The present study examined the growth hormone (GH) response to repeated bouts of maximal sprint cycling and the effect of cycling at different pedaling rates on postexercise serum GH concentrations. Ten male subjects completed two 30-s sprints, separated by 1 h of passive recovery on two occasions, against an applied resistance equal to 7.5% (fast trial) and 10% (slow trial) of their body mass,...