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Synthesis and characterization of new mixed-valent Mn(II)/Mn(III) and mixed metal Ni/Mn complexes
(2015)
Microwave assisted synthesis and bench-top reactions are compared for Mn and Mn/Ni reaction systems with substituted salicylic acid (2-hydroxy-6-isopropyl-3-methylbenzoic-acid (SALOH2). When Mn salts are used, the microwave ...
Diterpenes from Fleischmannia hymenophylla and Brickellia laciniata
(1989)
The aerial parts of Fleischmannia hymenolepis gave in addition to phytol and sesamin a new derivative of beyerene named hymenophylloide. The aerial parts of Brickellia laciniata afforded several new labdane derivatives and ...
Evaluation of a recent product to remove lipids and other matrix co-extractives in the analysis of pesticide residues and environmental contaminants in foods
(2016-06-03)
This study demonstrates the application of a novel lipid removal product to the residue analysis of 65 pesticides and 52 environmental contaminants in kale, pork, salmon, and avocado by fast, low pressure gas chromatography ...
Estudio de Coherencia y Transporte Cuánticos en las Dinámicas Energéticas duranta la Captación de Energía Lumínica en Sistemas Fotosintéticos
(2022-11)
The photosynthesis is one of the most studied biological processes through history. Its capacity to fix carbon into nutritional molecules is the base of all food chains. Its efficient exploitation of the solar energy ...
Methylotrophs and Hydrocarbon-Degrading Bacteria Are Key Players in the Microbial Community of an Abandoned Century-Old Oil Exploration Well
(2021-04-17)
In this work, we studied the microbial community and the physicochemical conditions prevailing in an exploratory oil well, abandoned a century ago, located in the Cahuita National Park (Costa Rica). According to our analysis, ...
Estudio de propóleos a base de nemorosona: Composición química y Estabilidad
(2022)
Los propóleos poseen un alto valor etnofarmacológico, conocido por la humanidad desde hace milenios. Su variabilidad química hace difícil tanto su estudio cómo su caracterización. En este trabajo se caracterizó el perfil ...
Orbitals in general chemistry, Part I: The great debate
(2020-08)
In Part I of a three-part series, we present an objective survey of the technical literature discussing the inclusion of orbitals in highschool
and post-secondary general chemistry. We start with the definition of orbitals. ...
Structure, chirality, and field testing of a male-produced aggregation pheromone of Asian palm weevilRhynchophorus bilineatus (Montr.) (Coleoptera: Curculionidae)
(1995-10)
4-Methyl-5-nonanol is a male-produced aggregation pheromone of the Asian palm weevil,Rhynchophorus bilineatus (Montr.). 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 ...
Fusarium: more than a node or a foot-shaped basal cell
(2021)
Recent publications have argued that there are potentially serious consequences for researchers in recognising distinct genera in the terminal fusarioid clade of the family Nectriaceae. Thus, an alternate hypothesis, namely ...