Zobrazeno 1 - 10
of 40
pro vyhledávání: '"A.P Woodhead"'
Publikováno v:
Journal of Insect Science, Vol 3, p 30 (2003)
In the cockroach Diploptera punctata, vitellogenic basal oocytes stimulate juvenile hormone production by the corpora allata. Experiments with males were designed to determine whether oocytes must grow vitellogenically in order to stimulate juvenile
Externí odkaz:
https://doaj.org/article/ad49965fb3c4414e9d7e597d9a2c2944
Autor:
Vin Dhanak, Christopher A. Muryn, H. Raza, Chi L. Pang, G. Thornton, A.P. Woodhead, S. A. Haycock
Publikováno v:
Pang, C L, Muryn, C A, Woodhead, A P, Raza, H, Haycock, S A, Dhanak, V R & Thornton, G 2005, ' Low-coverage condensation of K on TiO 2 (1 1 0) 1 × 1 ', Surface Science, vol. 583, no. 2-3, pp. L147-L152 . https://doi.org/10.1016/j.susc.2005.03.033
The adsorption site of K on TiO2 (110) 1 x 1 has been investigated at low coverage (< 0.15 ML, where 1 monolayer corresponds to the number of surface unit cells). A combination of surface extended X-ray absorption fine structure (SEXAFS), scanning tu
Publikováno v:
Surface Science. 496:299-306
Medium energy ion scattering (MEIS) using 100 keV H+ ions has been used to study the structure of Ni(110)c(2×2)–S. Blocking curves in two of the three principal azimuths have been measured in order to determine the atomic positions in both the sur
Autor:
Christopher A. Muryn, Charles T. Campbell, J. Yoshihara, R.J. Oldman, S.C. Parker, T.M. Evans, A.P. Woodhead, Geoff Thornton, Robert Lindsay, A. Gutiérrez-Sosa
Publikováno v:
Surface Science. 477:1-7
The orientation of formic acid (HCOOH) on ZnO(0 0 0 1 )–O and the effect of co-adsorbed Cu have been studied using polarisation dependent C K-edge near edge X-ray absorption fine structure. Formate created by exposure of the substrate to 20 L of HC
Autor:
A.P. Woodhead, Olav Vahtras, Vincenzo Carravetta, A. Gutiérrez-Sosa, Oleksandr Plashkevych, P.B. Wells, R.J. Oldman, N.A. Young, T.J. Hall, A.A. Davis, T.M. Evans, Hans Ågren, G. Thornton
Publikováno v:
Surface Science. 436:L691-L696
N K -edge NEXAFS and corresponding STEX calculations have been used to examine the orientation of 10,11-dihydrocinchonidine on Pt(111) at 298 and 323 K. The results indicate that the quinoline ring system is approximately parallel to the substrate at
Autor:
S.A. Haycock, A.P. Woodhead, V.R. Dhanak, S.P. Harte, Christopher A. Muryn, Paul L. Wincott, G. Thornton, C.E. Marsden, S. Vinton, T.M. Evans
Publikováno v:
Surface Science. 424:179-186
The initial stages of titanium growth on the 1×1 and ( 84 × 84 ) R11° terminations and chromium growth on the ( 84 × 84 ) R11° termination of α-quartz SiO2 (0001) have been studied using polarization-dependent SEXAFS. Three metal coverages have
Publikováno v:
International Journal of Mass Spectrometry. 184:1-9
Copper isotopic compositions have been measured both in natural copper minerals from supergene/oxidation zones and in some ancient metal artefacts using two different instruments. Measurements were first made using a low temperature thermal ionisatio
Autor:
Paul L. Wincott, G. Thornton, S.A. Haycock, A.P. Woodhead, V.R. Dhanak, S.P. Harte, Christopher A. Muryn
Publikováno v:
Surface Science. 420:L138-L142
The reaction of H2S with NiO(100) has been studied by polarization-dependent surface EXAFS. The results evidence reduction of the selvedge to form a Ni raft having S in four-fold sites with a S–Ni bond length of 2.21±0.02 A. The Ni–Ni in-plane d
Publikováno v:
Physical Review B. 70
Publikováno v:
Journal of Insect Science, Vol 3, p 30 (2003)
Journal of Insect Science
Journal of Insect Science
In the cockroach Diploptera punctata, vitellogenic basal oocytes stimulate juvenile hormone production by the corpora allata. Experiments with males were designed to determine whether oocytes must grow vitellogenically in order to stimulate juvenile