Porous silicon was successfully prepared using metal-assisted chemical etching method. The Effect of HF/H2O2 concentration in etching solution as an affecting parameter on the prepared porosity type and size was investigated. Field emission electron microscopy (FE-SEM) confirmed that all etched samples had porous structure and the sample which was immersed into HF/H2O2 withmolar ratio of 7/3.53...

Endophyte (Acremonium cotnophiaJum Morgan-Jones et Gams) -Infected tall fescue (Festuca arundinacea Schreb.) produces ergopeptiDe alkaloids (EP) that may be associated with fescue toxicosis symptoms in cattle (B03 taurus). A study was conducted during 1983 and 1984 at Watkinsville, GA, to determine the effects of endophyte infection, season, and N fertilization on EP concentration and Steer ave...

OBJECTIVE To examine the changes in aerobic endurance performance of professional youth soccer players throughout the soccer season. METHODS Nine youth soccer players were tested at six different time points throughout the soccer season by sub-maximal blood lactate assessment, using an incremental treadmill protocol. Whole blood lactate concentration and heart frequency (Hf) were determined a...

OBJECTIVE To assess the association between adiponectin and incident heart failure (HF). DESIGN AND METHODS In the current ancillary study to the Physicians' Health Study (PHS), we used a prospective nested case-control design to examine whether plasma adiponectin concentration was related to the risk of HF. We selected 787 incident HF cases and 787 matched controls for the current analysis. ...

BACKGROUND Microalbuminuria has been described as a risk factor for progressive cardiovascular and renal diseases. Little is known about its prognostic value in patients (pts) with established heart failure (HF). OBJECTIVE To assess the role of microalbuminuria as a prognostic marker in patients with chronic HF receiving standard medication. METHODS From January 2008 through September 2009,...

The study aims to establish the effect of a maternal high-fat diet on obestatin concentration, total ghrelin, and ghrelin/obestatin ratio during pregnancy and lactation of Wistar rats and their offspring in the first 21 days of life. On the mating day, females were randomly allocated and fed either a high-fat diet (30% of fat; HF) or breeding diet (5% fat; BD) till the 21st day of lactation. Ho...

Heart rate variability (HRV), the beat-to-beat alterations in heart rate, comprises sympathetic and parasympathetic nerve activities of the heart. HRV analysis is used to quantify cardiac autonomic regulation. Since respiration could be a confounding factor in HRV evaluation, some studies recommend consciously controlled breathing to standardize the method. However, it remains unclear whether c...

BACKGROUND More intensive glycemic control reduces the risk of microvascular disease in patients with diabetes mellitus but has not been proven to reduce the risk of macrovascular events such as myocardial infarction and stroke. Poorer glycemic control, as indicated by glycated hemoglobin level concentration, is associated with an increased risk of heart failure (HF), but it is not known whethe...

This study investigated whether endothelin (ET)-1-induced increase in myocardial distensibility is preserved in heart failure (HF) and whether it is modulated by nitric oxide (NO) and prostaglandins. New Zealand white rabbits were treated with doxorubicin (1 mg/kg, intravenously twice a week for 8 weeks, DOX-HF group) or saline (control group). Effects of ET-1 (0.1, 1, 10 nM) were tested in pap...