BACKGROUND There is, globally, an often observed inequality in the health services available in urban and rural areas. One strategy to overcome the inequality is to require urban doctors to spend time in rural hospitals. This approach was adopted by the Beijing Municipality (population of 20.19 million) to improve rural health services, but the approach has never been systematically evaluated. ...

Lead (Pb) and methyl mercury (MeHg) are well established neurodevelopmental toxicants (NDTs), but joint exposure to chemical and nonchemical (e.g., maternal stress) stressors has rarely been considered. We characterized exposure to Pb, MeHg and a measure of physiological dysregulation associated with chronic stress and examined race/ethnicity as a predictor of joint NDT exposure. Using data fro...

The role of the renin-angiotensin system in the control of aldosterone secretion was studied in the sodium-depleted rat. Administration of angiotensin II produced a significant increase in aldosterone secretion and arterial blood pressure in normal rats; simultaneous infusion of the angiotensin analogue, l-sarcosine-8-alanine-angiotensin II, blocked both the pressor and the steroidogenic action...

To meet the urgent need for high-precision tracking and reliable cataloging of non-cooperative targets in Earth–Moon space, this paper proposes a GNSS Inter-Satellite Link Connected Element Interferometry (CEI)-based measurement method high-value cislunar space targets. Firstly, general flow basic scenario proposed are given, followed by mathematical model which, mainly includes four parts: (i)...