Gentse memoriedagen: 11-12-13-14-15 juni.

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...

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

(1′S,12′R,13′S,17′S)-15′,15′-Dimethyl-1,2-dihydro-11′,14′,16′,18′-tetra­oxa-7′-aza­spiro­[indole-3,8′-penta­cyclo­[10.6.0.02,9.03,7.013,17]octa­deca­ne]-2,10′-dione

In the title compound, C22H24N2O6, the indole ring has a twist conformation and the tetra-hydro-2H-pyran-2-one ring a half-chair conformation. One of the pyrrolidine rings adopts an envelope conformation on the N atom, while the other has a twist conformation; the 'butterfly' angle between their mean planes is 62.98 (11)°. The dioxolane ring adopts a twist conformation and the tetra-hydro-furan...

Tropical Atlantic Biases in CCSM 4 9 10 11 12 13 14

Developmental constraints of quadrupedal coordination across crawling styles in 11 human infants 12 13 14

33 Human infants can crawl using several very different styles; this diversity appears at first 34 glance to contradict our previous findings from hands-and-knees crawling which 35 suggested that there were strict limitations on coordination, imposed either mechanically 36 or by the developing nervous system. To determine if coordination was similarly 37 restricted across crawling styles, we st...