Gentse memoriedagen: 12-13-14-15 februari.

5α-Hy­droxy­eudesm-4(15),11(13)-dien-8β,12-olide

The title compound, C(15)H(20)O(3), a sesquiterpene lactone, was isolated from the aerial parts of Carpesium minus Hemsl. (Compositae). The mol-ecule is composed of three rings, with the two cyclo-hexane rings in chair conformations and the cyclo-pentane ring adopting a twist conformation. The A/B ring junction is trans-fused. The absolute configuration shown has been arbitrarily assigned. In t...

Tannic acid-stained microtubules with 12, 13, and 15 protofilaments

Subunit structure in the walls of sectioned microtubules was first noted by Ledbetter and Porter (6), who clearly showed that certain microtubules of plant meristematic cells have 13 wall protofilaments when seen in cross section. Earlier, protofilaments of microtubular elements had been described in negatively stained material, although exact counts of their number were difficult to obtain. In...

Regenerable sorbents for mercury capture in 10 simulated coal combustion flue gas 11 12 13 14 15 16 17 18

بررسی رشد کودکان 13، 14، 15 ساله پسر

چکیده ندارد.

بررسی رشد بدنی افراد 13 - 14 - 15 ساله

چکیده ندارد.