Results 31 to 40 of about 72,645 (328)

Synthesis and structures of O-anthrylmethyl-substituted hexahomotrioxacalix[3]arenes [PDF]

, 2016
O-Alkylation of 7,15,23-tri-tert-butyl-25,26,27-trihydroxy-2,3,10,11,18,19-hexahomo-3,11,19-trioxacalix[3]arene (1H₃) with 9-chloromethylanthracene 5 was carried out under different reaction conditions.
Ikejiri, Yusuke, Jiang, Xue-Kai, Ni, Xi-Long, Redshaw, Carl, Yamato, Takehiko, Zeng, Xi   +5 more
core   +1 more source

Structural evolution in the neutron-rich nuclei 106Zr and 108Zr [PDF]

, 2011
The low-lying states in 106Zr and 108Zr have been investigated by means of {\beta}-{\gamma} and isomer spectroscopy at the RI beam factory, respectively. A new isomer with a half-life of 620\pm150 ns has been identified in 108Zr. For the sequence of even-
Baba, H., Berryman, J. S., Blasi, N., Bracco, A., Camera, F., Chiba, J., Doornenbal, P., Go, S., Hashimoto, T., Hayakawa, S., Hinke, C., Ideguchi, E., Isobe, T., Ito, Y., Jenkins, D. G., Kawada, Y., Kobayashi, N., Kondo, Y., Krücken, R., Kubono, S., Kurata-Nishimura, M., Li, Z., Lorusso, G., Miyashita, Y., Nakano, T., Nishimura, S., Odahara, A., Ong, H. J., Ota, S., Podolyák, Zs., Sakurai, H., Scheit, H., Steiger, K., Steppenbeck, D., Sugimoto, K., Sumikama, T., Tajiri, K., Takano, S., Takashima, A., Teranishi, T., Wakabayashi, Y., Walker, P. M., Watanabe, H., Wieland, O., Yamaguchi, H., Yamaguchi, K., Yoshinaga, K.   +46 more
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Space and Culture: Isomerism in Vernacular Dwellings in Meizhou, Guangdong Province, China

Journal of Asian Architecture and Building Engineering, 2018
Taking Hakka vernacular dwellings as an example, this paper discusses the relationship between culture and architectural form. Using survey data from 2,189 traditional villages in the Meizhou region, the authors identify seven types of dwelling and their
Jin Tao, Huashuai Chen, Shawei Zhang, Dawei Xiao   +3 more
doaj   +1 more source

Spontaneous Left Cardiac Isomerism in Chick Embryos: Case Report, Review of the Literature, and Possible Significance for the Understanding of Ventricular Non-Compaction Cardiomyopathy in the Setting of Human Heterotaxy Syndromes

Journal of Cardiovascular Development and Disease, 2019
The outer shape of most vertebrates is normally characterized by bilateral symmetry. The inner organs, on the other hand, are normally arranged in bilaterally asymmetric patterns.
Jörg Männer
doaj   +1 more source

Coordination polymers and isomerism; a study using silver(I) and a ∏-stacked ligand [PDF]

, 2001
The ligand 2,5-bis(2-pyridylmethylsulfanylmethyl)pyrazine (L) was prepared by the base coupling of 2-(sulfanylmethyl)pyridine and 2,5-bis(chloromethyl)pyrazine. This new ligand was treated with AgClO₄ in a 1 1 metal-to-ligand ratio and with AgNO₃in a 2
Caradoc-Davies, Paula L., Hanton, Lyall R., Henderson, William   +2 more
core   +2 more sources

Isomerism

, 2014
Citation: 'isomerism' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.I03294 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
Aditya Shetty, Andrea Molinari, Daniel Bell   +2 more
  +5 more sources

Ethyl 5-Oxo-5-(((12-oxoindolo[2,1-b]quinazolin-6(12H)-ylidene)amino)oxy)pentanoate

Molbank, 2022
Indolo[2,1-b]quinazolin-6,12-dione (tryptanthrin) derivatives present important types of nitrogen-containing heterocyclic compounds which are useful intermediate products in organic synthesis and have potential pharmaceutical applications.
Anastasia R. Kovrizhina, Alina A. Kolpakova, Andrei A. Kuznetzov, Andrei I. Khlebnikov   +3 more
doaj   +1 more source

ZZE-Configuration of chromophore ß-153 in C-phycocyanin from Mastigocladus laminosus [PDF]

, 1987
The photochemistry of C-phycocyanin has been studied after denaturation in the dark. It shows an irreversible reaction which has characteristics of a Ζ,Ζ,Ε- to Z,Z,Z-isomerization of dihydrobilins. Its amplitude depends on the reaction conditions, with
Bode, W., Fischer, R., Huber, R., Rüdiger, W., Scheer, Hugo, Schirmer, T., Schmidt, G., Siebzehnrübl, S.   +7 more
core   +1 more source

Distributed Polarizability Model for Covalently Bonded Fullerene Nanoaggregates: Origins of Polarizability Exaltation

Nanomaterials, 2022
Polarizability exaltation is typical for (C60)n nanostructures. It relates to the ratio between the mean polarizabilities of (C60)n and C60: the first one is higher than the n-fold mean polarizability of the original fullerene. This phenomenon is used in
Denis Sh. Sabirov, Alina A. Tukhbatullina   +1 more
doaj   +1 more source

Bottom-up construction of ontologies [PDF]

, 1998
Presents a particular way of building ontologies that proceeds in a bottom-up fashion. Concepts are defined in a way that mirrors the way their instances are composed out of smaller objects.
Mars, N.J.I., Vet, P.E. van der
core   +3 more sources