Abstract. Different paleoclimate proxy records evidence repeated abrupt climate transitions during previous glacial intervals. These are thought to comprise warming and increase in local precipitation over Greenland, sudden reorganization of the Northern Hemisphere atmospheric circulation, retreat sea ice North Atlantic. The physical mechanism underlying these so-called Dansgaard–Oeschger (DO) ...

this paper proposes an optimal transmission expansion planning (tep) which is based on determining share of each line in merchandizing surplus (ms) of system, determining by independent system operator (iso). the more share of a line in ms of system denotes the priority of a line for expansion. the procedure of determining ms of each line in a power system is based on determining the ms share o...

A marine sediment record from the central Bering Sea, spanning last 20 thousand years (ka), was studied to unravel depositional history with regard terrigenous supply and biogenic sedimentation. Methodic approaches comprised inference of accumulation rates siliciclastic components, grain-size analysis, (clay) mineralogy, as well paleoclimatic modelling. Changes in provides insight into land-oce...

the iranian poultry sector has experienced many significant structural changes in recent years. such changes may have influenced price dynamics and transmission of shocks through marketing channels especially on retail markets. this paper investigate price transmission, threshold behavior and asymmetric adjustment in poultry sector of ardebil (ar), east azerbaijan (ea) and west azerbaijan (wa) ...

context crimean-congo hemorrhagic fever (cchf) is a tick-borne viral disease with a mortality rate of 30% to 80% and reported from more than 30 countries in asia, africa, south-eastern europe, and the middle east. it is a zoonotic viral disease and an important health problem. in endemic areas, livestock handlers, livestock market workers, skin processors, veterinary staff, farmers, and healthc...

A substantial strengthening of the South American monsoon system (SAMS) during Heinrich Stadials (HS) points toward decreased cross-equatorial heat transport as the main driver of monsoonal hydroclimate variability at millennial time scales. In order to better constrain the exact timing and internal structure of HS1 over tropical South America, we assessed two precisely dated speleothem records...