Autor: Morris, P. A. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Notes from the mammals society - No.16
Apparent hypothermia in the Wood mouse (Apodemus sylvaticus)
Autorzy:: Morris, P. A.
Wydawca:: Wiley-Blackwell
Powiązania:: Journal of Zoology, Lond.
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 2.

Tytuł:: Epiphyseal fusion in the forefoot aas a means of age determination in the hedgehog (Erinaceus europaeus)
Autorzy:: Morris, P. A.
Wydawca:: Wiley-Blackwell
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 3.

Tytuł:: A method for determining absolute age in the hedgehog
Autorzy:: Morris, P. A.
Wydawca:: Wiley-Blackwell
Powiązania:: Journal of Zoology, Lond.
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 4.

Tytuł:: The use of dormouse Muscardinus avellanarius nest boxes by two species of Apodemus in Britain
Autorzy:: Marsh, A. C. W.
Morris, P. A.
Powiązania:: Acta Theriologica
Opis:: The occupancy of Muscardinus avallanarius (Linnaeus, 1758) nest boxes by Apodemus flavicollis (Melchior, 1834) and A. sylvaticus (Linnaeus, 1758) was studied over a six-year period from five sites in southern Britain.
Dostawca treści:: RCIN - Repozytorium Cyfrowe Instytutów Naukowych

Książka

na półce

Skocz do pozycji: 5.

Tytuł:: Eu-Doped Cerium Oxide Nanoparticles Studied by Positron Annihilation
Autorzy:: Thorat, A.
Ghoshal, T.
Morris, M.
Nambissan, P.
Tematy:: 61.46.Df
78.20.Ci
61.72.jd
12.38.Aw
78.70.Bj; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1338100.pdf Link otwiera się w nowym oknie
Opis:: The defect characteristics of cerium oxide ($CeO_2$) nanoparticles prepared through a solvothermal process and doped by europium to different concentrations ([Eu] = 0, 0.1, 0.5, 1, ..., 50 wt%) were studied by positron lifetime and coincidence Doppler broadening measurements. The particle sizes estimated from X-ray diffraction showed a reducing trend with increasing doping concentration except an increase during [Eu] = 0.1-1 wt%. The latter effect is attributed to the reduction of $Ce^{4+}$ ions to $Ce^{3+}$ resulting into the release of vacancies and formation of $Ce^{3+}$-vacancy associates. The lattice parameter increased with the decrease in particle size. Quantum confinement effects were observed in optical absorption studies as increase of band gap in particles of sizes below 7-8 nm. The vacancy-type defects were investigated by positrons. A lifetime of 176 ± 4 ps less than 187-189 ps reported for positrons in bulk $CeO_2$ reveals trapping of positrons in vacancy-type defects within the nanocrystallites. The defect-specific positron lifetime is admixed with that at the crystallite surfaces and it increased due to vacancy agglomeration at higher doping concentrations. Coincidence Doppler broadening studies indicated positron annihilation in defects surrounded by oxygen ions and the S-W plot showed the effect of quantum confinement through a peak-like kink or shoulder in the plot. Optical absorption studies have supported this observation.
Dostawca treści:: Biblioteka Nauki