51 research outputs found
Condições de sobrevivência em laboratório de Haemagogus janthinomys dyar, 1921 (Diptera: Culicidae)
COMPARISON OF THE ADSORBED MERCURY SCREENING METHOD WITH COLD-VAPOR ATOMIC ABSORPTION SPECTROPHOTOMETRY FOR DETERMINATION OF MERCURY IN SOIL
A field screening method for the determination of elemental mercury in environmental soil samples involves the thermal desorption of the mercury from the sample onto gold and then the thermal desorption from the gold to a goldfilm mercury vapor analyzer. This field screening method contains a large number of conditions that could be optimized for the various types of soils encountered. In this study, the conditions were optimized for the determination of mercury in silty clay materials, and the results were comparable to the coldvapor atomic absorption spectrophotometric method of determination. This paper discusses the benefits and disadvantages of employing the field screening method and provides the sequence of conditions that must be optimized to employ this method of determination on other soil types
Volatiles from wasabi inhibit entomopathogenic fungi: implications for tritrophic interactions and biological control
autho
The microstructure and origin of the threadlike bodies isolated from the metabolic nucleus
COEVOLUTION OF PIERID BUTTERFLIES AND THEIR CRUCIFEROUS FOODPLANTS. II. THE DISTRIBUTION OF EGGS ON POTENTIAL FOODPLANTS
Aphrodisiac pheromones of the sulfur butterfliesColias eurytheme andC. Philodice (Lepidoptera, Pieridae)
- …