Hydrogeochemistry of the Caribou-Poker Creeks Research Watershed

Bedrock of the Caribou-Poker Creeks Research Watershed dissolves incongruently with a first-order rate constant of about 5 x 10-6 day-1 at 5° C. The resulting solution is potassium-calcium-magnesium rich. The soil-plant environment acts on this solution through sorption of potassium and by evapotranspiration to yield a solution that is relatively depleted in potassium and enriched in calcium and magnesium, but with the same molar ratio of Ca:Mg as the fluid from the rock dissolution. This fluid from the soil-plant reservoir is the dominant contributor of ions to stream waters. Using the discriminant functions obtained by multiple discriminant analysis DPKR = 0.572Si02 + 0.240Ca + 2.89Mg - 0.384Na + 0.452N03 - 9.18 DCRB = 0.913Si02 + 0.042Ca + 1.28Mg + 1.17Na + 4.63N03 - 7.27, the waters of Caribou Creek and Poker Creek can be distinguished on the basis of chemical composition. In general, Poker Creek waters are slightly more concentrated than Caribou Creek waters. On the average, 1.4 x 10^13g H20/year leaves the watershed as surface water. At an average calcium concentration of 14 ppm for the water, 0.1% for the bedrock, and a watershed area of 46 mi^2, this flow corresponds to a maximum loss of about 17 metric tons of rock per hectare per year

Effects of digital altimetry on pilot workload

A series of VOR-DME instrument landing approaches was flown in the DC-9 full-workload simulator to compare pilot performance, scan behavior, and workload when using a computer-drum-pointer altimeter (CDPA) and a digital altimeter (DA). Six pilots executed two sets of instrument landing approaches, with a CDPA on one set and a DA on the other set. Pilot scanning parameters, flight performance, and subjective opinion data were evaluated. It is found that the processes of gathering information from the CDPA and the DA are different. The DA requires a higher mental workload than the CDPA for a VOR-DME type landing approach. Mental processing of altitude information after transitioning back to the attitude indicator is more evident with the DA than with the CDPA

A taxonomic and distributional study of the adult caddisflies of the family leptoceridae (insecta: trichoptera) of West Virginia

A survey of the adult Leptoceridae of West Virginia revealed 27 species, 25 of which were state records. The most abundant genus in the state was Ceraclea which had ten different species. Triaenodes had six different species, while Oecetis had five. The most common species in the state included C. cancellatus, C. maculate, O. avara, and O. inconspicua. Species that were abundant only in the larger rivers of the western portion of the state included C. flava, C. maculata, Nectopsyche pavida, and T. ignita. C. neffi seemed to be most abundant in the higher elevations of the east. Ceraclea ophioderus, C. slossonae, and C. wetzeli were important range extensions into West Virginia. Many species emerged throughout the summer suggesting multi-cohort populations

We\u27re Listening: A Study of Music Preference in Modern Society

The purpose of this study was to investigate the formation of music preference in an effort to identify specific ages when preferred music is likely to be discovered. One hundred one individuals participated in an online survey, answering questions about their listening habits, music preferences, and the social elements that contributed most to those preferences. Participants were asked to identify their current, second, and third favorite music at the time of the study and whether their preferences had changed over time. According to findings, males were likely to discover their current favorite music at the age of 12.46 years, and females were likely to discover their current favorite music at the age of 13.23 years. Parents, friends, and the radio were shown to be the most common influences towards preference discovery. Of those surveyed, 69.3 % of participants acknowledged that their preferences had changed over time. However, the current methodology lacked the specificity to determine the scope of that change, leaving room for future study. The results hold implications for not only the field of music therapy, but also for any other fields utilizing preferred music to achieve a specific result

Adolescent Residential Mobility: Behavioral Outcomes and the Moderating Role of the Mother-Adolescent Relationship

Prior research has noted unfavorable associations between residential mobility (RM) and youth outcomes. However, little work has considered the mother-adolescent relationship as a moderator of the suggested associations. The purpose of the current study was to examine the internalizing, externalizing, and delinquent behaviors of adolescents (Mage=15.6, SD=0.77) following a move in comparison to adolescents who did not move. Frequency of moves was considered and adolescents were identified as either stable (0 moves), low mobility (1-2 moves), or high mobility (\u3e2 moves) within a 6 year period. Mother-adolescent closeness and parental monitoring were examined as potential moderators of the relationship between RM and adolescent outcomes. The researchers expected mobility status would be positively associated with internalizing, externalizing, and delinquent behaviors and aspects of the mother-adolescent relationship would influence outcomes. Results suggest adolescents who experience high RM display more externalizing and delinquent behaviors following a move when compared to stable adolescents. No associations were found between adolescents’ internalizing behaviors and mobility status. Closeness between the mother and adolescent moderated the association between mobility status and externalizing behaviors, suggesting closer mother-adolescent relationships inhibited changes in externalizing behavior following a move. Implications for programs and school communities are included

William B. Glover to Jim, 1 April 1961

Professional correspondenc

Methinks he doth protest too much - recovering unjustified payments made under duress and protest

The private law doctrine of duress, although mostly discussed in the context of the law of contract in South Africa, is also relevant in the law of unjustified enrichment. Where an unjustified payment or transfer of some kind has been induced by duress, in a situation where there is no contractual relationship between the parties, the aggrieved party will be entitled to reclaim the payment or transfer. The principles of enrichment law will apply in such cases

Analytical techniques of pilot scanning behavior and their application

The state of the art of oculometric data analysis techniques and their applications in certain research areas such as pilot workload, information transfer provided by various display formats, crew role in automated systems, and pilot training are documented. These analytical techniques produce the following data: real-time viewing of the pilot's scanning behavior, average dwell times, dwell percentages, instrument transition paths, dwell histograms, and entropy rate measures. These types of data are discussed, and overviews of the experimental setup, data analysis techniques, and software are presented. A glossary of terms frequently used in pilot scanning behavior and a bibliography of reports on related research sponsored by NASA Langley Research Center are also presented

Data management for JGOFS: Theory and design

The Joint Global Ocean Flux Study (JGOFS), currently being organized under the auspices of the Scientific Committee for Ocean Research (SCOR), is intended to be a decade long internationally coordinated program. The main goal of JGOFS is to determine and understand on a global scale the processes controlling the time-varying fluxes of carbon and associated biogenic elements in the ocean and to evaluate the related exchanges with the atmosphere, sea floor and continental boundaries. 'A long-term goal of JGOFS will be to establish strategies for observing, on long time scales, changes in ocean biogeochemical cycles in relation to climate change'. Participation from a large number of U.S. and foreign institutions is expected. JGOFS investigators have begun a set of time-series measurements and global surveys of a wide variety of biological, chemical and physical quantities, detailed process-oriented studies, satellite observations of ocean color and wind stress and modeling of the bio-geochemical processes. These experiments will generate data in amounts unprecedented in the biological and chemical communities; rapid and effortless exchange of these data will be important to the success of JGOFS