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Oxidation of fat during flight of male Douglas-fir beetles, Dendroctonus pseudotsugae
Abstract During flight, male beetles lost weight primarily due to oxidation of fatty acids. RQ values of 0·7 and 0·8 were obtained for non-flying and flying insects respectively, indicating thatExpand
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Characterization of Pacific Northwest coast obsidian by x-ray fluorescence analysis
Analysis was carried out on obsidian from several geological sources in the Pacific Northwest employing tube excitation of a secondary target as a source for photon-excited energy-dispersive x-rayExpand
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Flight Arrestment of Tethered Dendroctonus pseudotsugae and Trypodendron lineatum (Coleoptera: Scolytidae) in Response to Olfactory Stimuli
With an automatically recording flight mill, the flight and arrestment responses of male striped ambrosia beetles, Trypodendron lineatum (Olivier) and male and female Douglas fir beetles,Expand
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The application of energy dispersive X-ray fluorescence spectroscopy to determining the provenience of Obsidian
Abstract The applicability of X-ray fluorescence spectroscopy to determinations of the provenience of obsidian archaelogical samples has been studied. Observed X-ray spectra, after normalization toExpand
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A Continously Recording Flight Mill for Investigating the Effect of Volatile Substances on the Flight of Tethered Insects
An apparatus was developed to test and record the effect of volatile substances on the flight of tethered insects. It consists of a rotary flight mill within a glass chamber through which there is aExpand
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Characterization of Two Gnathotrichus sulcatus Populations by X-ray Energy Spectrometry
Samples of Gnathotrichus sulcatus were analyzed by x-ray energy spectrometry (XES) and were shown to possess a chemoprint which could be subjected to discriminant analysis. Beetles could beExpand
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THE APPLICABILITY OF X-RAY ENERGY-DISPERSIVE SPECTROSCOPY TO THE IDENTIFICATION OF POPULATIONS OF RED TURNIP BEETLE, ENTOMOSCELIS AMERICANA (COLEOPTERA: CHRYSOMELIDAE)
The relative concentration of elements in adults of the red turnip beetle, Entomoscelis americana Brown, as determined by X-ray energy-dispersive spectroscopy (XES), was used with discriminantExpand
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