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Estrogenic and serotonergic butenolides from the leaves of Piper hispidum Swingle (Piperaceae)
(Journal of Ethnopharmacology 129(2): 220–226, 2010)
Ethnopharmacological relevance: Our previous work has demonstrated that several plants in the Piperaceae family are commonly used by the Q’eqchi Maya of Livingston, Guatemala to treat amenorrhea,
dysmenorrhea, and pain. ...
Aspectos prácticos de la validación e incertidumbre en mediciones químicas
(Buenos Aires, Argentina, 2009)
En este libro se abordan dos temas relacionados con uno de
los más importantes aspectos en lo relativo a la calidad de la
información generada por un laboratorio de análisis químico: la
validación de los métodos utilizados, ...
Caracterización fisicoquímica de las aguas superficiales de la cuenca del río Rincón en la Península de Osa, Puntarenas, Costa Rica
(San Pedro de Montes de Oca, San José, Costa Rica, 2008)
Este proyecto se desarrolló en la cuenca del río Rincón en la península de Osa, una de las regiones
geológicas más antiguas de Costa Rica. En ella afloran unidades de roca ígnea y sedimentaria,
además de sedimentos ...
Organic Acids without a Carboxylic Acid Functional Group
(Journal of Chemical Education 77(7):910-915. July 2000, 2000-07)
This paper presents several organic molecules that have been labeled as acids but do not contain a carboxylic acid functional group. The rationale for the nomenclature and appropriate explanations for the apparent acidity ...
Aggregation pheromone of palmetto weevil, Rhynchophorus cruentatus (F.) (Coleoptera: Curculionidae)
(1994)
5-Methyl-4-octanol is the major aggregation pheromone of the palmetto weevil,Rhynchophorus cruentatus (F.). The pheromone (cruentol) was identified by coupled gas chromatographic-electroantennographic (GC-EAD) analysis of ...
Efficient syntheses of streptocarpone and (±)-a-dunnione
(2007)
An efficient divergent synthesis of both streptocarpone and racemic α-dunnione from lawsone are described. A one-pot, formal [3+2] cyclization to form a furanonaphthoquinone directly provided a common intermediate.
Pheromone chirality of african palm weevil, Rhynchophorus phoenicis (F.) and palmetto weevil, Rhynthophorus crueniatus (F.) (Coleoptera: Curculionidae)
(1994-09)
There are four stereoisomers of both 3-methyl-octan-4-ol, the aggregation pheromone of the African palm weevil,Rhynchophorus phoenicis (F.) and 5-methyl-octan-4-ol, the aggregation pheromone of the palmetto weevil,Rhynchophorus ...
Aggregation Pheromone of Palm Weevil, Dynamis borassi
(1997)
4-Methyl-5-nonanol (1) is the male-produced aggregation pheromone of the palm weevil, Dynamis borassi (F.) from Colombia. The pheromone was identified by coupled gas chromatographic–electroantennographic detection (GC-EAD) ...
Chemical and Behavioral Ecology of Palm Weevils (Curculionidae: Rhynchophorinae)
(1996)
Palm weevils in the subfamily Rhynchophorinae (Curculionidae) (Rhynchophorus spp., Dynamis borassi, Metamasius hemipterus, Rhabdoscelus obscurus, and Paramasius distortus) use male-produced aggregation pheromones for ...
Optimization of semiochemical-based trapping of Metamasius hemipterus sericeus (Olivier) (Coleoptera: Curculionidae)
(1996-08)
Response of adults of the West Indian sugarcane weevil,Metamasius hemipterus sericeus, to various semiochemical treatments and physical trap designs was studied in southern Florida in field-grown banana and Canary Island ...