To develop a suitable biomonitor of metal pollution in watersheds, we examined trends in exposure to nine trace elements in the diet (benthic invertebrates and fish), feathers (n = 104), and feces (n = 14) of an aquatic passerine, the American dipper (Cinclus mexicanus), from the Chilliwack watershed in British Columbia, Canada. We hypothesized that key differences may exist in exposure to meta...

OBJECTIVE Failure to decrease blood pressure (BP) during the night is associated with higher cardiovascular (CV) morbidity and mortality. There is strong evidence that fixed-dose combinations (FDCs) of antihypertensive agents are associated with significant improvement and non-significant adverse effects. The aim of the present study was to evaluate whether FDC affected nocturnal BP favorably i...

Dipper stars are a classification of young stellar objects that exhibit dimming variability in their light curves, dropping brightness by 10-50%, likely induced occultations due to circumstellar disk material. This can be periodic, quasi-periodic, or aperiodic. have been discovered associations via ground-based and space-based photometric surveys. We present the detection characterization large...

Low-density lipoprotein oxidation and antioxidant vitamins E and C were investigated in dipper (nocturnal blood pressure fall > 10%) and nondipper (nocturnal blood pressure fall < 10%) hypertensives. We studied 40 dippers and 28 nondippers balanced for gender, age, and body mass index. Blood samples were drawn for lipid profile determination, assessment of thiobarbituric acid-reactive substance...

BACKGROUND Subclinical hypothyroidism is the most common thyroid dysfunction in the general population. The relationship between overt thyroid dysfunction and hypertension is generally understood. Besides high blood pressure, non-dipper hypertension is known to increase cardiovascular risk. Our aim is to investigate daily blood pressure changes and the frequency of non-dipping patterns in patie...

Ultradian rhythms in blood pressure (BP) are known to exist, but their modification in hypertension is largely unknown. The present study was undertaken to assess the integrity of ultradian and 24-hour BP rhythms in dipper (n=100) and nondipper (n=20) hypertensive patients compared with 44 dipper normotensive individuals. Fourier analysis was used to fit ultradian (12, 8, and 6 hour) and 24-hou...

We have observed the eclipsing low–mass X–ray binary MS 1603.6+2600 with Chandra for 7 ksec. The X–ray spectrum is well fit with a single absorbed powerlaw with an index of ∼2. We find a clear sinusoidal modulation in the X–ray lightcurve with a period of 1.7±0.2 hours, consistent with the period of 1.85 hours found before. However, no (partial) eclipses were found. We argue that if the X–ray f...