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| Registros recuperados: 12.472 | |
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1,3,8,10-Tetrakis-(4-fluoro-phenyl)-1,3,8,10-tetrahydro-4,5,6,7-tetrathia-1,3,8,10-tetraaza-dicyclopenta[a,c]cyclooctene-2,9-dithione
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eCrystals | |
| Hursthouse, Michael B.; Huth, Susanne. L.. |
| Tipo: Crystal Structure Data Holding |
Palavras-chave: C~30~H~16~N~4~S~6~F~4~.CHCl~3~; Organic; Halogen-halogen interactions. |
| Ano: 2004 |
URL: http://ecrystals.chem.soton.ac.uk/30/ |
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1,3,5,7,11-Pentaaza-2,4,6-triphospha spiro[5.5] undeca-1,3,5-triene-(1,4-butanediyl)bis [2,2,4,4-tetrapyrrollidine]
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eCrystals | |
| Yenilmez-Ciftci, Gonul; Shaw, Robert A; Mayer, Thomas A.; Kilic, A.; Hursthouse, Michael B.; Davies, David B.; Coles, Simon J.. |
| Tipo: Crystal Structure Data Holding |
Palavras-chave: C~42~H~86~N~18~P~6~; Inorganic; Substituted cyclophosphazene; Structure-property relationship; Phosphorus nitrogen compounds. |
| Ano: 2004 |
URL: http://ecrystals.chem.soton.ac.uk/142/ |
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| Ngobo, Martine; IITA; m.ngobo@cgiar.org; McDonald, Morag; University of Wales, Bangor; mamcd@bangor.ac.uk; Weise, Stephan; ; s.weise@cgiar.org. |
| In the humid forest regions of southern Cameroon in central Africa, sectoral and macroeconomic policy reforms introduced in the late 1980s have led to intensified land use, which in turn has resulted in, among other environmental consequences, shortened fallow systems dominated by the Asteraceae shrub, Chromolaena odorata (L.) King and Robinson, rather than by secondary forest species. A trial was established to determine the effect of shortened fallow duration and invasion by C. odorata on the weed flora in subsequent mixed food cropping systems. Plots were established in cleared 5- to 7-year-old fallow fields in which the vegetation was either dominated by C. odorata or not, and in which the dominant fallow vegetation in the previous... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: CVA; Cameroon; Chromolaena odorata; Fallow; Weeds. |
| Ano: 2004 |
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| Garibaldi, Ann; University of Victoria; anng@uvic.ca; Turner, Nancy; University of Victoria; nturner@uvic.ca. |
| Ecologists have long recognized that some species, by virtue of the key roles they play in the overall structure and functioning of an ecosystem, are essential to its integrity; these are known as keystone species. Similarly, in human cultures everywhere, there are plants and animals that form the contextual underpinnings of a culture, as reflected in their fundamental roles in diet, as materials, or in medicine. In addition, these species often feature prominently in the language, ceremonies, and narratives of native peoples and can be considered cultural icons. Without these "cultural keystone species," the societies they support would be completely different. An obvious example is western red-cedar (Thuja plicata) for Northwest Coast cultures of North... |
| Tipo: Peer-Reviewed Reports |
Palavras-chave: Porphyra abbottiae; Sagittaria spp.; Thuja plicata; British Columbia; First Nations; Cultural keystone species; Ecological restoration; Traditional ecological knowledge. |
| Ano: 2004 |
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| Registros recuperados: 12.472 | |
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