Appropriate computer-mediated communication: An Australian indigenous information system case study

This article discusses ways to operationalise the concept of culturally appropriate computer-mediated communication, utilising information systems (IS) development methodologies and adopting a postmodern and postcolonial perspective. By way of illustration, it describes progress on the participative development of the Ieramugadu Cultural Information System. This project is designed to develop and evaluate innovative procedures for elicitation, analysis, storage and communication of indigenous cultural heritage information. It is investigating culturally appropriate IS design techniques, multimedia approaches and ways to ensure protection of secret/sacred information. Ethical issues are foregrounded.     

Small-scale lacustrine drifts in Lake Champlain,Vermont

High resolution CHIRP (Compressed High Intensity Radar Pulse) seismic profiles reveal the presence of two lacustrine sediment drifts located in Lake Champlain's Juniper Deep. Both drifts are positive features composed of highly laminated sediments. Drift B sits on a basement high while Drift A is built on a trough-filling acoustically-transparent sediment unit inferred to be a mass-transport event. These drifts are oriented approximately north–south and are parallel to a steep ridge along the eastern shore of the basin. Drift A, located at the bottom of a structural trough, is classified as a confined, elongate drift that transitions northward to become a system of upslope asymmetric mudwaves. Drift B is perched atop a structural high to the west of Drift A and is classified as a detached elongate drift. Bottom current depositional control was investigated using Acoustic Doppler Current Profilers (ADCPs) located across Drift A. Sediment cores were taken at the crest and at the edges of the Drift A and were dated. Drift source, deposition, and evolution show that these drifts are formed by a water column shear with the highest deposition occurring along its crest and western flank and began developing circa 8700–8800 year BP.     

Suppressor effects in coping research with African American adolescents from low-income communities.

Objective: The purpose of the current study was to demonstrate the replicable nature of statistical suppressor effects in coping research through 2 examples with African American adolescents from low-income communities. Method: Participants in the 1st example included 497 African American adolescents (mean age = 12.61 years, SD = 0.99; 57% female) reporting on dispositional coping, and participants in the 2nd example included 268 African American adolescents (mean age = 12.90 years, SD = 1.27; 56% female) reporting on situation-based coping. Participants in both samples completed self-report measures of coping strategies (Children's Coping Strategies Checklist and How I Coped Under Pressure Scale) and internalizing symptoms (Youth Self-Report, Children's Depression Inventory, and Revised Children's Manifest Anxiety Scale). Results: The results of structural equation modeling revealed significant suppressor effects, with active coping and support-seeking coping enhancing the association between avoidant coping and internalizing symptoms. Conclusions: The demonstration of replicable suppressor effects helps to advance coping research and intervention by providing evidence of the interdependence of coping strategies, thus increasing understanding of how coping strategies work together to predict outcomes. The current study offers recommendations for understanding associations among coping strategies within the context of suppression effects. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Auditory-phonetic projection and lexical structure in the recognition of sine-wave words.

Speech remains intelligible despite the elimination of canonical acoustic correlates of phonemes from the spectrum. A portion of this perceptual flexibility can be attributed to modulation sensitivity in the auditory-to-phonetic projection, although signal-independent properties of lexical neighborhoods also affect intelligibility in utterances composed of words. Three tests were conducted to estimate the effects of exposure to natural and sine-wave samples of speech in this kind of perceptual versatility. First, sine-wave versions of the easy and hard word sets were created, modeled on the speech samples of a single talker. The performance difference in recognition of easy and hard words was used to index the perceptual reliance on signal-independent properties of lexical contrasts. Second, several kinds of exposure produced familiarity with an aspect of sine-wave speech: (a) sine-wave sentences modeled on the same talker; (b) sine-wave sentences modeled on a different talker, to create familiarity with a sine-wave carrier; and (c) natural sentences spoken by the same talker, to create familiarity with the idiolect expressed in the sine-wave words. Recognition performance with both easy and hard sine-wave words improved after exposure only to sine-wave sentences modeled on the same talker. Third, a control test showed that signal-independent uncertainty is a plausible cause of differences in recognition of easy and hard sine-wave words. The conditions of beneficial exposure reveal the specificity of attention underlying versatility in speech perception. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Social-motivational processes and interpersonal relationships: Implications for understanding motivation at school.

Social-motivational processes and socialization experiences can play a critical role in students' academic success. However, the search for specific mechanisms and processes that explain these social influences on motivation is still in its inception. The purpose of this article was to begin to articulate some of these processes in the hope that more precise explanations of influence will emerge. The 1st section of the article focuses on ways in which social-motivational processes are relevant for understanding motivation to achieve academically, using goal pursuit as a case in point. Models describing complementary, developmental, and hierarchical relations among social and task-related goals and their implications for understanding student achievement are presented. Then, ways in which students' social encounters and experiences with parents, teachers, and peers might influence their adoption and internalization of socially valued goals are examined. New directions for theoretical and empirical inquiry are presented. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Correlations for timing consistency among tapping and drawing tasks: Evidence against a single timing process for motor control.

Three experiments were conducted to examine whether timing processes can be shared by continuous tapping and drawing tasks. In all 3 experiments, temporal precision in tapping was not related to temporal precision in continuous drawing. There were modest correlations among the tapping tasks, and there were significant correlations among the drawing tasks. In Experiment 3, the function relating timing variance to the square of the observed movement duration for tapping was different from that for drawing. The conclusions drawn were that timing is not an ability to be shared by a variety of tasks but instead that the temporal qualities of skilled movement are the result of the specific processes necessary to produce a trajectory. These results are consistent with the idea that timing is an emergent property of movement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The Realities of CASE

To help manage a large and increasingly complex backlog of systems development projects, more IS departments are turning to computer-aided software engineering (CASE) as their solution. However, this technology has certain barriers to its easy implementation, as shown by the response to a recent Deloitte & Touche survey that addressed (among other things) CASE use in organizations. This article discusses some of the problems of CASE implementation these organizations encountered as well as ways IS departments can overcome these barriers and effectively integrate CASE.     

Structural dependency in language production.

The subjects and verbs of English agree in number. This superficially simple operation is regularly implemented by speakers, but occasionally derails in sentences such as "The time for fun and games are over". Such mistakes are interesting because their systematic deviations from the structural dependencies that govern normal agreement may shed light on how such dependencies are ordinarily implemented in speech. There were two issues at the focus of this work. The first had to do with the nature of the information that is used in carrying out agreement, and the second with the scope of processing operations. The findings from several experiments are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Children's intention-cue detection as a function of maternal social behavior: Pathways to social rejection.

This study examined the role of maternal social behavior in children's behavioral reactions to provocation. Popular and rejected 1st graders and their mothers independently completed an intention-cue detection task. Mothers also completed a questionnaire assessing if their responses to their child were based on the child's intent. A moderate relation within the mother–child dyad was noted for all measures. Rejected children and their mothers reported more aggressive behavioral responses to nonhostile and ambiguous provocations than did popular children and their mothers. Mothers of popular children provided more prosocial resolutions to provocation than did mothers of rejected children. In addition, mothers of popular children focused more on the intent of their children's actions than did mothers of rejected children, particularly when behavior led to negative outcomes. Implications of these findings in terms of the correlates of social status are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)