BACKGROUND Diuretics are widely used in patients with chronic kidney disease (CKD). While thiazide-like diuretics limit urinary calcium excretion, loop diuretics (LD) promote calcium wasting, which might facilitate the development of secondary hyperparathyroidism (HPT2). We sought to investigate, in CKD patients not on dialysis, the influence of either hydrochlorothiazide (Hydro) or furosemide ...

Hydropower has now become the best source of electricity on earth. It is produced due to the energy provided by moving or falling water. History proves that the cost of this electricity remains constant over the year. Because of the many advantages, most of the countries now have hydropower as the source of major electricity producer. The most important advantage of hydropower is that t is gree...

Over all these years, Voith Hydro has continuously set new performance and size records, and continuously educated its staff around the world to create the best-in-class designs through engineering and manufacturing expertise. The result is a second-to-none reputation for excellence in engineering standards and products as well as reliability, trust and commitment in long-lasting partnering rel...

This paper uses simple hydro-economic optimization to investigate a wide range of regional water system management options for northern Baja California, Mexico. Hydro-economic optimization models, even with parsimonious model formulations, enable investigation of promising water management portfolios for supplying water to agricultural, environmental and urban users. CALVIN, a generalized hydro...

In the structure of the title compound, C12H12O3, the di-hydro-pyran ring is fused with the benzene ring. The di-hydro-pyran ring is in a half-chair conformation, with the ring O and methyl-ene C atoms positioned 1.367 (3) and 1.504 (4) Å, respectively, on either side of the mean plane formed by the other four atoms. The meth-oxy group is coplanar with the benzene ring to which it is connected ...

The present study was conducted in patients with cervix and ovarian carcinoma to evaluate the status of oxidative stress biomarkers as protein carbonyl and lipid hydro peroxides. Biomarkers of oxidative stress were measured as protein carbonyl (PC) and total lipid hydro peroxides (LOOH). Newly diagnosed women with carcinoma (n=100; 30-65 years of age) and agematched clinically healthy women (n=...

When mechanically induced progressive failure of rock and the associated changes in hydro fracturing process, it is difficult to track the dynamic evolution of fractures beneath the earth. To overcome this, recent developments in hydro-fracturing technique have tended to follow hybrid approaches. An attempt was made to develop an empirical relationship to predict the Fracture length in millimet...

Water is scarce resource with uncertain availability. Hence finding an optimal production schedule for hydro producer is usually a complex task and it is necessary to carefully balance the timing of water use. This paper addresses the selfscheduling problem for a price-taker hydro producer. The goal is maximizing the profit of a hydro producer through participating in the day-ahead energy and a...

In hydro power plants from Romania, there is a major interest for the implementation of digital systems for monitoring and control to replace the conventional control systems for power, frequency and voltage. Therefore is necessary to develop mathematical models capable to accurately describe both dynamic and stationary behaviour of the hydro units, in order to be able to implement digital cont...

The choice of hydraulic turbine manufacturer and their performance assessment are becoming major challenges. Evaluating product criterion and selecting optimum manufacturer are complicated tasks due to the fact that various criteria or objectives must be considered in the decision making process having various importance. In this study, we proposed a hydro turbine manufacturer selection analysi...