Toward alternative metrics of journal impact: A comparison of download and citation data

We generated networks of journal relationships from citation and download data, and determined journal impact rankings from these networks using a set of social network centrality metrics. The resulting journal impact rankings were compared to the ISI IF. Results indicate that, although social network metrics and ISI IF rankings deviate moderately for citation-based journal networks, they differ considerably for journal networks derived from download data. We believe the results represent a unique aspect of general journal impact that is not captured by the ISI IF. These results furthermore raise questions regarding the validity of the ISI IF as the sole assessment of journal impact, and suggest the possibility of devising impact metrics based on usage information in general.     

Taste quality and extinction of a conditioned taste aversion in rats

Rats (Rattus norvegicus) that received a taste cue (saccharin, saline, quinine, or sucrose) paired with a lithium chloride (LiCl) injection displayed a robust decrease in consumption of that taste, relative to controls that had the taste unpaired with LiCl. Consumption of the paired taste increased with each nonreinforced presentation (i.e., extinction). After asymptotic extinction, rats that had had a 0.1% saccharin cue paired with LiCl consumed less of the saccharin solution than did controls. A similar data pattern was observed with a 10% sucrose solution. These results are consistent with the view that some aspect of the excitatory CS-US association remains after extinction. On the other hand, rats that had a bitter (0.005% or 0.001% quinine) or salty (1% or 0.5% saline) solution paired with LiCl drank similar amounts of the fluid as controls after asymptotic extinction treatment. Together, these experiments suggest that a taste that is either sweet or preferred is required in order to demonstrate the chronic decrease in fluid consumption after extinction treatment. The data suggest that the conditioning experience prevents the later development of a preference for the sweet taste, rather than there being a retained aversion that suppresses fluid consumption.     

High-resolution friction measurements of cross-country ski bases on snow

Participants in the sport of snow skiing devote considerable effort to reduce sliding friction of the ski. A large industry is devoted to providing products and ski preparation methods with claims of improved ski performance, sometimes at considerable expense. Despite this attention to the topic, there are very little data available to skiers that quantify the effect these products and methods have on reducing ski friction. Determining the coefficient of friction of a ski on snow presents a significant technical challenge. Our approach has been to develop a tribometer incorporating a series of proximity sensors to test commercially available ski equipment and waxes on natural snow. We developed a test protocol that significantly reduces the experimental noise associated with variable environmental conditions enabling us to differentiate the difference in friction between two pairs of skis with a resolution of 0.001. A large body of test data was acquired over a wide range of environmental conditions to quantify the effect of ski wax and base texturing treatments in terms of coefficient of friction in a way that is of practical use to skiers. An exercise physiology power model was used to estimate the ski race time difference that could be expected from changing the coefficient of friction.     

The prevalence of social maladjustment among school-age children

PL 94-142 mandates that students who are seriously emotionally disturbed be provided with a free and appropriate public education. Embedded in the federal definition of serious emotional disturbance is a clause that excludes socially maladjusted students from the diagnostic category. Although socially maladjusted children may therefore not receive special education services, their presence in the schools may have implications for society and particularly for the educational system. However, there is little data concerning the prevalence of socially maladjusted students in the schools. The purpose of this study was to investigate the prevalence of social maladjustment in two rural/suburban school systems in the southeastern United States. Results of the study indicate that the percentage of students reported as exhibiting characteristics of social maladjustment is sufficiently high to indicate that services beyond special education may be necessary to meet their educational and social needs.     

School and Community Wellness: Transforming Achievement Using a Holistic Orientation to Learning

A comprehensive school and community wellness plan was developed and implemented to transform Lemon Grove Academy for the Sciences and Humanities, an urban school, where student achievement and faculty satisfaction has soared. The school has become the center for the local neighborhood where culture, language, and equity are valued. The school's Comprehensive Wellness Plan includes student wellness, family wellness, staff/faculty wellness, and environmental wellness.     

Making functional units functional: The role of rhetorical structure in use of scholarly journal articles

Scholars are reading more journal articles than ever, so it is important that they focus on the relevant text within the articles they read. To support this goal, this study explores enhancements to a journal reading system by applying the idea of the functional unit, the smallest information unit with a distinct function within four major components of scholarly journal articles—Introduction, Methods, Results and Discussion. This study examined a set of functional units and their associations with scholarly journal article use tasks through literature analysis and validation surveys. Forty-one typical functional units were found in psychology journal articles, with varying relevance to five tasks requiring use of information in journal articles. The relationships among sets of functional units for particular tasks were also identified. A taxonomy was developed incorporating the relationships between functional units and information use tasks, which can be used to inform system design. Based on this taxonomy, a prototype journal reading environment signalling functional units was designed and implemented for testing.