every year a large number of migratory wintering water birds, rest in the wetlands situated in the northern provinces of iran. the wetlands are very important ecosystems for these creatures. due to ecological importance of water birds, the results of this study (the birds’ populations and their changes) are helpful to monitor them and are especially important to manage the wetlands. in this stu...

Frequency, tie-line power, and the terminal voltages of synchronized generators must all be kept within prescribed limits to ensure stability an interconnected power grid through combined automatic generation control (AGC) voltage regulator (AVR) loops. Thermal plants, electric vehicles, renewable energy sources—including solar wind, geothermal, thermal plants—form two-area integrated system in...

A re-refinement of 4mwk, namely, the X-ray triclinic crystal structure at 100 K of cisplatin binding to histidine in a protein in a multi-temperature structural dynamics study, has been made. This is so as to correct clashes in the protein structure solute molecules model for which our attention was drawn by the valuable critique of this PDB deposition by Shabalin et al. (2015) and that we have...

The respiratory responses to cold ambient temperatures in birds have only rarely been described. Bernstein & Schmidt-Nielsen (1974) studied the fish crow (Corvus ossifragus) during moderate cold exposure, while Bouverot, Hildwein & Oulhen (1976) measured ventilatory variables in pigeons (Columba livia) at near thermoneutral (22°C) and at cold (2°C) ambient temperatures. With respect to the amou...

Seagrasses in coastal areas have substantial importance for the marine environment and also serve as food for herbivorous waterbirds. We investigated potential relationships between the autumn population of herbivorous waterbirds and eelgrass (Zostera marina) abundance in the EU protected area, Nibe-Gjøl Bredning, a broad of the Limfjorden estuarine complex in Denmark.This is an important site ...