The resulting dark mixture was filtered trough a 1:1 mxture of Celite® and sílica flash which was washed with diethyl ether (2 × 5 mL). The crude product was concentrated by vacuum and purified by
The strong C II and Lyα absorption suppress light from the quasar’s central engine, acting like a coronagraph which reveals the ~ 10 times fainter emission from the host galaxy as residual emission in the absorption trough. a, d, the portions of the 1D X-shooter spectrum extracted along ...
In a self-propelling agricultural machine with a two-part cutting mechanism trough, the position of a cutter bar relative to a stationary part of the cutting mechanism trough is continuously determined, and a predetermined position of the reel is associated with each position of the cutter bar ...
In each trough (experimental unit) an independent tank was provided to supply the plants with nutrient solution through a drip irrigation system. After application, each solution was returned to its tank for later recirculation (closed system). In addition to the required pots (18 pots per ...
While from the technical point of view this complexity can be overcome by an automatized generation of the maps trough a GIS software, the administration of the process requires all parties involved to be trained and to share a common understanding of how the process works. This steep learning...
The index is a barometer of sales over the next two months when the transactions are completed. There are signs that home sales have reached a trough and could rebound. Low mortgage rates have supported buyer demand, such that the government's report of new-home sales showed a s...
TROUGHThere is a trough in waves,a low spotwhere horizon disappearsand only skyand water are our company.And there we lose our wayunlesswe rest, knowing the wave will bring usto its crest again.There we may drownif we let fearhold us with in its grip and shake usside to side,and le...
trough15on the blue side of the Lyman-α emission line in the spectrum, we estimate the proper size of the ionized proximity zone associated with the quasar to be about 26 million light years, larger than found with otherz> 6.1 quasars with lower luminosities16. We estimate (on the basis...
2b,c) is consistent with surface creep and thrusting associated with gravitational spreading processes during subsidence71. In the southeastern region, there are several terraced mesas leaning towards their neighboring SHPD flanks (Fig. 3a), indicating that subsidence extended beyond the troughs and ...
We conclude that prior graft loss to NA is associated with increased graft loss to NA after retransplant. However, the majority of NA retransplant recipients did well—with overall long-term outcomes similar to those of the non-NA group. With careful patient selection and aggressive intervention...