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Satellite transmitters were attached to 25 reproductively active and four inactive adult male loggerhead sea turtles (86.6-107.0 cm SCLmin) captured from the Port Canaveral, FL, USA shipping channel to assess horizontal and vertical distributions. During the breeding period, male loggerheads aggregated (44% of 755 turtle days) in a 117.6 km core area that encompassed the shipping channel. Median dive duration during the breeding period was 27 min (IQR = 15-42 min) and males spent 4% (IQR = 3-5%) of the time at the surface, with significantly shorter dives associated with reproductively active males. Migrant and resident males dispersed concurrently, with residents shifting > 30 km east across the continental shelf over a more protracted departure schedule than migrants. Dive duration and time spent at the surface increased through the fall. Cluster analysis revealed the strongest association for dive duration with sea state during and after the breeding period, with significantly longer dives during more turbulent conditions. In contrast, univariate associations with surface interval duration were not elucidated. [ABSTRACT FROM AUTHOR]

Sixteen satellite-tagged adult male loggerhead sea turtles ( Caretta caretta) dispersed widely from an aggregation near Port Canaveral, Florida, USA (28°23′N, −80°32′W) after breeding. Northbound males migrated further (990 ± 303 km) than southbound males (577 ± 168 km) and transited more rapidly (median initial dive duration = 6 (IQR = 4-16) versus 19 (IQR = 10-31) min, respectively).. Migration occurred along a depth corridor (20-40 m) except where constricted by a narrow continental shelf width. Males foraged in areas 27 ± 41 km day at locations <1-80 km from shore for 100.1 ± 60.6 days, with variability in foraging patterns not explained by turtle size or geography. Post-breeding dispersal patterns were similar to patterns reported for adult female loggerhead sea turtles in this region and adult male loggerhead sea turtles elsewhere in the northern hemisphere; however, foraging ground distributions were most similar to adult female loggerhead sea turtles in this region. [ABSTRACT FROM AUTHOR]

Thirty-four juvenile loggerhead sea turtles captured by trawling from the Charleston, South Carolina (USA), shipping channel (32°42′N; −79°47′W) between May 2004 and August 2007 were tagged with satellite transmitters to assess the extent to which they remained near the capture location given their collection along a seasonal migratory corridor. Seventy-five percent of juveniles were classified as seasonal residents. Migrants predominantly swam north in the spring and nomads wandered south in the summer, but predictive indicators for non-resident status were not identified. All but one juvenile generally remained south of 34°N, within 40 km of shore, and in waters <30 m deep throughout the year. Nine of 14 loggerhead sea turtles monitored during the winter remained exclusively over the continental shelf, three briefly occurred in oceanic habitats, and two foraged extensively in oceanic habitats. Residents distributed >15 km from shore between spring and autumn were three times as likely to occur in oceanic habitats in winter. Modest seasonal movements contrasted with adults tagged at similar latitudes and with juveniles tagged further north and suggest distinct foraging groups within a regional foraging ground. [ABSTRACT FROM AUTHOR]

Describes the high-technology classroom in terms of physical and virtual space. How administrators and faculty take advantage of the teaching environment available through information technology; Classification of classroom communications; Conclusion.

Strategic information systems planning (SISP) requires significant outlays of increasingly scarce human and financial resources. Yet, there exists very little understanding of how the success of this planning activity is measured. Using classical frameworks for measurement development as well as contemporary statistical techniques for assessing dimensionality, this study theoretically develops and empirically tests a measurement model of SISP success. The results suggest that SISP success can be operationalized as a second-order factor model. The first order constructs of the model are termed alignment, analysis, cooperation, and improvement in capabilities. These factors are governed by a second-order construct of SISP success. The results of the study are framed as a tool, for benchmarking planning efforts as well as a foundation for operationalizing a key dependent variable in SISP research. [ABSTRACT FROM AUTHOR]

Orchestrating programs of organizational transformation that result in sustained process improvement represents a difficult managerial challenge. Yet, ever-changing customer requirements, electronic partnerships, and increasingly complex intraorganizational arrangements are forcing many well-established firms to transform themselves from function-based forms of organization into process-based systems of managerial, task, and evaluative arrangements. Through a program of managed transformation, the In formation Services (IS) function at Bose Corporation has realized dramatic improvements in the delivery of information products/services and is now "charting the course" for a sustained process management view that will define and measure business relationships well into the next century. In contrast to many well-publicized programs of change, the drive toward sustained process improvement and innovation by Bose IS resembles an evolutionary model of organizational learning and information sharing rather than a revolutionary model of immediate and drastic transformation. This study describes the defining stages, key events, and obstacles of the road traveled by Bose IS in transforming itself from a corporate utility into an enterprise-wide source of process innovation and improvement. [ABSTRACT FROM AUTHOR]

This article notes the results of two studies by D. A. Adams et al designed to replicate previous work by Fred Davis in 1989 regarding perceived usefulness, ease of use, and their influence on the usage of information technology. The authors of the research employed structural equation modeling and utilized regression analysis. Unfortunately, the model fits were unsatisfactory. This author seeks to analyze these scales further by revisiting this research. The authors hope that this research will help researchers interested in statistically testing relationships between variables using structural equation modeling.

Trawling was conducted in the Charleston, South Carolina, shipping channel between May and August during 2004-07 to evaluate loggerhead sea turtle (Caretta caretta) catch rates and demographic distributions. Two hundred and twenty individual loggerheads were captured in 432 trawling events during eight sampling periods lasting 2-10 days each. Catch was analyzed by using a generalized linear model. Data were fitted to a negative binomial distribution with the log of standardized sampling effort (i.e., an hour of sampling with a net head rope length standardized to 30.5 m) for each event treated as an offset term. Among 21 variables, factors, and interactions, five terms were significant in the final model, which accounted for 45% of model deviance. Highly significant differences in catch were noted among sampling periods and sampling locations within the channel, with greatest catch furthest seaward consistent with historical observations. Loggerhead sea turtle catch rates in 2004-07 were greater than in 1991-92 when mandatory use of turtle excluder devices was beginning to be phased in. Concurrent with increased catch rates, loggerheads captured in 2004-07 were larger than in 1991-92. Eighty-five percent of loggerheads captured were ≤75.0 cm straight-line carapace length (nuchal notch to tip of carapace) and there was a 3.9:1 female-to-male bias, consistent with limited data for this location two decades earlier. Only juvenile logger- heads ≤75.0 cm possessed haplotypes other than CC-A01 or CC-A02 that dominate in the region. Six rare and one un-described haplotype were pre-dominantly found in June 2004. [ABSTRACT FROM AUTHOR]

As the importance of information technology has increased within the business domain, so too has the significance of innovating within those information technologies. The recent proliferation of telecommunications technologies, coupled with conventional information technology, has resulted in a new class of applications with important competitive implications. An important issue for organizations, then, is the causal sequence that leads to more innovative telecommunications adoption. Previous innovation research has shown radical and incremental innovation employing vastly different strategy-structure sequence configurations. Two proposals have been offered on how an organization can effectively innovate incrementally and radically: first, through the use of semi-structures, and second, by utilizing both configurations simultaneously, termed ambidextrous. This paper seeks 1) to determine whether organizations are balancing innovation efforts, and 2) if so, are organizations managing the effort using semi-structures or an ambidextrous approach. The research is conducted within the telecommunications industry by employing theoretical typologies of radical and incremental innovation developed in the literature. Based on a sample of 154 organizations the findings suggest that organizations are indeed using a balanced approach to overall innovativeness by using paradoxical, dual models of innovation simultaneously. Implications for researchers and practitioners are discussed. [ABSTRACT FROM AUTHOR]

This paper develops an integrated theory of playfulness in computer interactions using multiple constructs. Although previous researchers have suggested that playfulness in computer interactions should be measured as both a state and a trait, we suggest that fully understanding the relevant constructs involves much more than simply a state-trait measurement issue. We synthesize the literature from social psychology, applied psychology, human resource management, management information systems, and marketing and present a comprehensive model of the network of constructs surrounding playfulness in computer interactions. This model serves to clarify both the trait and state influences on playfulness in computer interactions. Trait influences are captured through the Big Five theory of personality and microcomputer playfulness (MCP), while state influences are captured by flow theory. We encourage research into our model of playfulness in computer interactions with directional hypotheses and a suggested research agenda. [Copyright &y& Elsevier]

Seasonal trawling was conducted randomly in coastal (depths of 4.6-17 m) waters from St. Augustine, Florida, (29.9°N) to Winyah Bay, South Carolina (33.1°N), during 2000-03, 2008-09, and 2011 to assess annual trends in the relative abundance of sea turtles. A total of 1262 loggerhead sea turtles (Caretta caretta) were captured in 23% (951) of 4207 sampling events. Capture rates (overall and among prevalent 5-cm size classes) were analyzed through the use of a generalized linear model with log link function for the 4097 events that had complete observations for all 25 model parameters. Final models explained 6.6% (70.1-75.0 cm minimum straight-line carapace length [SCLmin]) to 14.9% (75.1-80.0 cm SCLmin) of deviance in the data set. Sampling year, geographic subregion, and distance from shore were retained as significant terms in all final models, and these terms collectively accounted for 6.2% of overall model deviance (range: 4.5-11.7% of variance among 5-cm size classes). We retained 18 parameters only in a subset of final models: 4 as exclusively significant terms, 5 as a mixture of significant or nonsignificant terms, and 9 as exclusively nonsignificant terms. Four parameters also were dropped completely from all final models. The generalized linear model proved appropriate for monitoring trends for this data set that was laden with zero values for catches and was compiled for a globally protected species. Because we could not account for much model deviance, metrics other than those examined in our study may better explain catch variability and, once elucidated, their inclusion in the generalized linear model should improve model fits. [ABSTRACT FROM AUTHOR]

Sustainability of competitive advantage may be achieved by leveraging unique firm attributes with information technology to realize long-term performance gains. Information systems that cannot sustain competitive impact have only transient strategic value or may offer negative value if matched by a superior response by competitors. A research review of sustainability was conducted that resulted in the development of a framework depicting factors effecting sustainable competitive advantage. This study evaluates longitudinal changes in performance measures of 30 firms that have been cited as "classic" cases of strategic use of information technology. The results of this analysis indicate that not all of these classic cases can be touted as "sustained winners." Differences among strategic "sustainers" and "non-sustainers" were formally tested to determine those firm and/or industry factors that may be antecedents to sustained IT competitive advantage. Results indicate that managers must do more than simply assess the uniqueness or availability of emerging technological innovations in developing strategic IT plans. Specifically, the establishment of technological base along with substantial capital availability seem to be important prerequisites for "technologically derived" sustainability. Recognizing the need for a stronger prescriptive orientation to strategic IS, future research is outlined in an effort to develop a comprehensive framework that would link combinations of sustainability factors to actual performance. [ABSTRACT FROM AUTHOR]