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in source
Responses to hemifield stimuli that extended to both lower and upper fields resembled the responses to lower field stimuli in source current direction and strength.
      
Uncertainties in source apportionment need to be addressed by improving methods of fingerprinting sources of airborne particles, and establishing identities of individual particles on the basis of characteristic morphologies and chemical composition.
      
Arsenic, cadmium, and manganese were identified with levels exceeding the drinking water guidelines of WHO (World Health Organization), and their distribution depended upon the differences in source materials and in spatial pH variations.
      
Oxygen isotope ratios in streamflow of the Missouri River basin vary geographically due to differences in source precipitation and the integration of waters from upstream regions.
      
The residence times in source organs were: 2.2±1.8 h in spleen, 1.7±1.2 h in kidneys, 2.4±1.9 h in liver, 1.5±0.3 h in urinary bladder and 9.4±5.5 h in the remainder of the body; the mean residence time in tumour was 0.47 h (range: 0.03-6.50 h).
      
The size and location of PLRs is affected only slightly by the source strength and frequency of vibration, but differences in source type and axis of vibration increase the size of the PLR of an unknown source.
      
Phase-shift information may be important for (1) inhibitory/excitatory sculpting of receptive fields and (2) unambiguously encoding source distance so that increases in source distance are not confused with decreases in source amplitude.
      
Male Helicoverpa zea normally respond to their conspecific sex pheromone blend by exhibiting an upwind flight, which culminates in source contact by at least 50% of the bioassayed individuals.
      
granites which represent a major change in source material and conceivably tectonic setting.
      
This range ofδ18O values probably results from differences in source material and post-crystallization history of the different intrusive types.
      
More mafic rocks show a large range ofδ18O values, reflecting original variations in source material compositions.
      
This is consistent with poor correlation of Rb, Sr and Ba with SiO2 in some granitoids and may suggest that minor phases that concentrate these elements were inhomogeneously distributed in source regions.
      
The boron isotope values seem especially sensitive to the presence of evaporites (marine and non-marine) and carbonates in source rocks to the massive sulfide deposits and tourmalinites.
      
These data complement earlier work on the island of Ua Pou and reveal that the marked shifts in source composition between shield-building and post-shield eruptives noted there are common to most islands in the archipelago.
      
The results yield a range in the extent of light rare earth enrichment of the source, as well as in source mineralogy.
      
Rather, the chemical differences between the two series probably reflect differences in source characteristics and conditions of melting.
      
Cross-arc geochemical variations in volcanic fields in Honduras C.A.: progressive changes in source with distance from the volca
      
This paper describes a study of human eye irritation, which is part of a research program aimed at developing the use of sensory reference scaling in source characterization.
      
Spatial discrimination was assessed using a novel paradigm involving the pupillary dilation response (PDR), and neuronal acuity was assessed by measuring the changes in firing rate resulting from changes in source location, scaled to the variance.
      
When leaf sugar levels were low (5-10 mg ml tissue water-1) sugar in phloem was 10-11 times more concentrated than in source leaves, but at high leaf sugar levels (25-30 mg ml-1) this concentration difference was only 3-4 fold.
      
 

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