منابع مشابه
Rasta resin–triphenylphosphine oxides and their use as recyclable heterogeneous reagent precursors in halogenation reactions
Heterogeneous polymer-supported triphenylphosphine oxides based on the rasta resin architecture have been synthesized, and applied as reagent precursors in a wide range of halogenation reactions. The rasta resin-triphenylphosphine oxides were reacted with either oxalyl chloride or oxalyl bromide to form the corresponding halophosphonium salts, and these in turn were reacted with alcohols, aldeh...
متن کاملMethanolic extracts from Ambrosia confertiflora, Ambrosia ambrosioides, and Guaiacum
Title In vitro antimycobacterial activity of nine medicinal plants used by ethnic groups in Sonora, Mexico Authors: Ramón Enrique Robles-Zepeda; Enrique Wenceslao Coronado-Aceves; Carlos Arturo Velázquez-Contreras; Eduardo Ruiz-Bustos; Moisés Navarro-Navarro; Adriana GaribayEscobar. Adriana Garibay-Escobar ([email protected]) Ramón Enrique Robles-Zepeda ([email protected]) Enriqu...
متن کاملSeed Germination and Seedling Growth of Guaiacum Sanctum, L,
6. Stewart, I. and C. D. Leonard. 1957. Use of chelates in citrus production in Fla. Soil Sci. 84: 87-98. 7. Wallace, A. 1956. Differential availability of micronutrients in the soil following chelate applications. Sym posium on the use of metal chelates in plant nutrition. National Press, Palo Alto, Calif, pp. 44-48. 8. Wallace, A. 1956. Metal chelates in agriculture. Symposium on the use of m...
متن کاملGenetic diversity in the endangered tropical tree, Guaiacum sanctum (Zygophyllaceae).
Fragmentation of tropical forests has changed continuous tropical landscapes into a network of poorly connected fragments, reducing population sizes and potentially increasing genetic isolation. This study quantifies genetic diversity within and among the 7 extant populations of the endangered tropical tree Guaiacum sanctum in Costa Rica. We describe how genetic diversity differs between popula...
متن کاملTests for occult blood in stools of children
Ford-Jones, A. E. A., and Cogswell, J. J. (1975). Archives of Disease in Childhood, 50, 238. Tests for occult blood in stools of children. Three tests for the presence of occult blood in the stools of children were examined; the orthotolidine test, the guaiacum resin test, and a modified reduced phenolphthalein test. The stools of 71 neonates, 33 normal children, and 8 children with suspected g...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1878
ISSN: 0036-8733
DOI: 10.1038/scientificamerican08101878-2169ksupp