'I know I'm doing a good job': canonical and autobiographical narratives of teenage mothers

Teenage pregnancy is typically presented as a problem to be solved, if not as an epidemic in need of urgent intervention. This paper reports on Australian research that examined the phenomenon of teenage motherhood from the perspective of the young women themselves. The theoretical frame of narrative was adopted in order to understand both the way in which the young mothers were making sense of their own lives, and the way in which they interpreted the canonical narrative of teenage motherhood. Interviews with 20 young mothers demonstrated both their awareness of the canonical narrative, in which they are judged and condemned, and their contrasting autobiographical narratives, in which they are represented as good mothers who are capable of learning the skills of motherhood. Although the women refused to emphasise the disadvantages of teenage motherhood, they acknowledged difficulties. Throughout their autobiographical accounts, a 'consoling plot' was evident. Young women may be supported in their endeavour to emplot their lives to their own benefit by family narratives of teenage motherhood.

Choosing qualitative methods for entrepreneurial cognition research : a canonical development approach

This article presents a structured, manageable approach to the complex problem of how to choose, from the vast arsenal loosely labeled "qualitative methods," sets of techniques appropriate to advancement of the emerging field of entrepreneurial cognition. Summary consideration is given to four key issues of philosophical context as a necessary predicate to presentation of a "canonical development" approach, stylized in diagrammatic form. The approach is able to accommodate due regard for both methodological controversy and operational complexity without being overwhelmed by either. Three illustrative examples indicate how use of the approach can stimulate a researcher to create productive matches between questions evolved from the entrepreneurial cognition canon and techniques selected from the complex array of qualitative methods.

Dipole time correlation functions of the Stockmayer fluid in the microcanonical and canonical ensembles

Computer simulations of Stockmayer fluids were performed to generate dipole time correlation functions (TCF) at three temperatures and three dipole moments in both the microcanonical and canonical ensembles. The effect of Nosé constant-temperature dynamics on time-dependent quantities is discussed, and empirical results are given to show that the choice of thermal inertia parameter influences the speed with which a system moves through its phase space. The time correlation functions from the simulations were analyzed in terms of current theories for dipolar systems. A functional form is proposed to cover both the longtime and short-time behavior of the time correlation functions of dipoles. The relationship between this functional form and the dielectric function of the Stockmayer system is also discussed.

Insights from the eco-physiological book of records : Bewick's swans outperform the canonical intake-maximizing vertebrate

During periods of high energy demand an animal may be constrained by a physiological maximum to its energy intake rate. Predictions by allometric equations describing this maximum for endotherms were significantly surpassed during a few recent laboratory experiments on birds and mammals, being given access to food 24 h day^-1. How relevant this is in the field remains to be assessed. We predicted that Bewick’s swans Cygnus columbianus bewickii might surpass this maximum during stopover on their migration. We determined intake rate by measuring initial and final biomass density, and dividing the biomass difference by the feeding time required to reach this difference. This feeding time was given by the functional response. After conversion to daily energy intake rates, these exceeded the previously assumed maximum on two of the three stopover sites studied. The exception was a stopover site where daily foraging time was limited by the tidal cycle. Our study confirms that intake rates may exceed the formerly generally supposed maximum under natural conditions when foraging is possible day and night.

On 4 June 2008 Siberian Red Knots at Elbe Mouth kissed the canonical evening migration departure rule goodbye

Observations of departing Siberian-breeding Red Knots Calidris canutus canutus from their central staging site during northward migration, the Schleswig-Holstein Wadden Sea, Germany, in early June 2008, challenge the established notion that departing long-distance migrating waders only leave around sunset. During four days we scanned several thousand Red Knots for colour-ringed individuals and found a total of 20 different individuals that were previously ringed at either their main wintering site, the Banc d'Arguin in Mauritania, or at stopover sites on the Atlantic coast of France. Body masses of captured Red Knots in Schleswig-Holstein were higher than 200 g and hematocrite values showed an average of 58%, clearly indicating that they were ready for take-off. On all except one evening, we noted impressive departure movements during the incoming tide. On that exceptional evening a cold front thunderstorm passed over the area. Late the next morning, thousands of Red Knots departed during the incoming tide. We assume that the birds avoided taking off in adverse weather conditions and elaborate why Red Knots presumably traded off advantages from departing during twilight. We suggest that during spring migration, schedules are so tight that further delays decrease fitness, either because it would cause another full day of exposure to high predation risk by falcons, or because of conditions upon arrival on the tundra.

Early Connections : reflections on the canonical lineage of Southeast Asian temples

Temples were constructed across Southeast Asia following the spread of Brahmanic/Hindu culture between the fifth to eight centuries CE. Epigraphic evidence, architectural and stylistic similarities between temples in the region are strongly indicative of historic cross cultural links between the traditions. This paper presents the findings of a research project that pieces together fragments of evidence from early temple sites in Southeast Asia to establish the linkages between the Southeast Asian temple building traditions. The focus of the paper is on tracing the canonical connections between these traditions through an examination of temple sites in Cambodia and Java respectively. The legacy of this ancient diasporic movement remains celebrated today in the admiration of Southeast Asian monuments such as Angkor Wat and Prambanan. However this architecture evolved over time through a process of long experimentation with philosophies, world-views, and methods. . In order to permit a deeper examination of canonical connections, the authors use methods such as photogrammetry, digital and physical models to reconstruct the architectural forms. A detailed analysis of the canonical geometry and compositional form of these temples is undertaken with reference to Indic texts and temples. Comparing the relationships between cosmology, geometry and physical form in this earlier sites with both Indian and developed Southeast Asian models, it is intended that its generative role within Southeast Asian architectural historiography can be clarified and more fully celebrated.

The Integrated Model of Sport Confidence: A Canonical Correlation and Mediational Analysis

The main purpose of the study was to examine crucial parts of Vealey’s (2001) integrated framework hypothesizing that sport confidence is a mediating variable between sources of sport confidence (including achievement, self-regulation, and social climate) and athletes’ affect in competition. The sample consisted of 386 athletes, who completed the Sources of Sport Confidence Questionnaire, Trait Sport Confidence Inventory, and Dispositional Flow Scale-2. Canonical correlation analysis revealed a confidence-achievement dimension underlying flow. Bias-corrected bootstrap confidence intervals in AMOS 20.0 were used in examining mediation effects between source domains and dispositional flow. Results showed that sport confidence partially mediated the relationship between achievement and  self-regulation domains and flow, whereas no significant mediation was found for social climate. On a subscale level, full mediation models emerged for achievement and flow dimensions of challenge–skills balance, clear goals, and concentration on the task at hand.

Factors associated with attributes of internal audit departments : a canonical analysis

This study explores internal audit (IA) practices in selected Ethiopian organizations to identify factors associated with attributes of IA departments. Analytical questionnaire survey responses of 188 IA directors and staff from Ethiopian government ministries, state-owned enterprises and private companies were used. Canonical analysis results show that IA proficiency, scope of IA work and quality of IA planning and execution are higher in organizations where organizational policy authorizing IA is clearly defined, organizational risk exposure is high and internal audit's linkage with external audit is strong. The findings suggest that in organizations that are exposed to high risk, management tends to appreciate IA's assistance in managing risk and thus strengthens IA. Results also suggest the importance of internal and external audit linkages and IA charter (or similar organizational policy) to strengthen IA. The study provides further evidence of differences in IA attributes between public and private sector entities.

Determination of long-run and short-run dynamics in EC-VARMA models via canonical correlations

This article studies a simple, coherent approach for identifying and estimating error-correcting vector autoregressive moving average (EC-VARMA) models. Canonical correlation analysis is implemented for both determining the cointegrating rank, using a strongly consistent method, and identifying the short-run VARMA dynamics, using the scalar component methodology. Finite-sample performance is evaluated via Monte Carlo simulations and the approach is applied to modelling and forecasting US interest rates. The results reveal that EC-VARMA models generate significantly more accurate out-of-sample forecasts than vector error correction models (VECMs), especially for short horizons.

A computational approach to the reconstruction of surface geometry from early temple superstructures

Recovering the control or implicit geometry underlying temple architecture requires bringing together fragments of evidence from field measurements, relating these to mathematical and geometric descriptions in canonical texts and proposing "best-fit" constructive models. While scholars in the field have traditionally used manual methods, the innovative application of niche computational techniques can help extend the study of artefact geometry. This paper demonstrates the application of a hybrid computational approach to the problem of recovering the surface geometry of early temple superstructures. The approach combines field measurements of temples, close-range architectural photogrammetry, rule-based generation and parametric modelling. The computing of surface geometry comprises a rule-based global model governing the overall form of the superstructure, several local models for individual motifs using photogrammetry and an intermediate geometry model that combines the two. To explain the technique and the different models, the paper examines an illustrative example of surface geometry reconstruction based on studies undertaken on a tenth century stone superstructure from western India. The example demonstrates that a combination of computational methods yields sophisticated models of the constructive geometry underlying temple form and that these digital artefacts can form the basis for in depth comparative analysis of temples, arising out of similar techniques, spread over geography, culture and time.

Evidence for a common role for the serine-type Plasmodium falciparum serine repeat antigen proteases : implications for vaccine and drug design

Serine repeat antigens (SERAs) are a family of secreted “cysteine-like” proteases of Plasmodium parasites. Several SERAs possess an atypical active-site serine residue in place of the canonical cysteine. The human malaria parasite Plasmodium falciparum possesses six “serine-type” (SERA1 to SERA5 and SERA9) and three “cysteine-type” (SERA6 to SERA8) SERAs. Here, we investigate the importance of the serine-type SERAs to blood-stage parasite development and examine the extent of functional redundancy among this group. We attempted to knock out the four P. falciparum serine-type SERA genes that have not been disrupted previously. SERA1, SERA4, and SERA9 knockout lines were generated, while only SERA5, the most strongly expressed member of the SERA family, remained refractory to genetic deletion. Interestingly, we discovered that while SERA4-null parasites completed the blood-stage cycle normally, they exhibited a twofold increase in the level of SERA5 mRNA. The inability to disrupt SERA5 and the apparent compensatory increase in SERA5 expression in response to the deletion of SERA4 provides evidence for an important blood-stage function for the serine-type SERAs and supports the notion of functional redundancy among this group. Such redundancy is consistent with our phylogenetic analysis, which reveals a monophyletic grouping of the serine-type SERAs across the genus Plasmodium and a predominance of postspeciation expansion. While SERA5 is to some extent further validated as a target for vaccine and drug development, our data suggest that the expression level of other serine-type SERAs is the only barrier to escape from anti-SERA5-specific interventions.

Heterotrimeric G protein γ subunits provide functional selectivity in Gβγ dimer signaling in arabidopsis

The Arabidopsis thaliana heterotrimeric G protein complex is encoded by single canonical Galpha and Gbeta subunit genes and two Ggamma subunit genes (AGG1 and AGG2), raising the possibility that the two potential G protein complexes mediate different cellular processes. Mutants with reduced expression of one or both Ggamma genes revealed specialized roles for each Ggamma subunit. AGG1-deficient mutants, but not AGG2-deficient mutants, showed impaired resistance against necrotrophic pathogens, reduced induction of the plant defensin gene PDF1.2, and decreased sensitivity to methyl jasmonate. By contrast, both AGG1- and AGG2-deficient mutants were hypersensitive to auxin-mediated induction of lateral roots, suggesting that Gbetagamma1 and Gbetagamma2 synergistically inhibit auxin-dependent lateral root initiation. However, the involvement of each Ggamma subunit in this root response differs, with Gbetagamma1 acting within the central cylinder, attenuating acropetally transported auxin signaling, while Gbetagamma2 affects the action of basipetal auxin and graviresponsiveness within the epidermis and/or cortex. This selectivity also operates in the hypocotyl. Selectivity in Gbetagamma signaling was also found in other known AGB1-mediated pathways. agg1 mutants were hypersensitive to glucose and the osmotic agent mannitol during seed germination, while agg2 mutants were only affected by glucose. We show that both Ggamma subunits form functional Gbetagamma dimers and that each provides functional selectivity to the plant heterotrimeric G proteins, revealing a mechanism underlying the complexity of G protein-mediated signaling in plants.

Employee psychological contracts

This thesis concerns the psychological contracts of employees. A psychological contract is an employee’s perception that: 1) an employer has certain obligations to them, and 2) in return, they have obligations as employees. A psychological contract is therefore a set of subjectively perceived reciprocal obligations. The psychological foundations of this construct are linked with cognitive schemas and social exchange theories. While the concept of psychological contracts was first proposed in the early 1960s, it has only been operationalised for empirical study in the last decade. The purpose of the thesis was to increase the understanding of the content and structure of employee psychological contracts and their links with career cognitions. The specific aims of the thesis were to: 1) examine the relational-transactional dimensions of psychological contracts, 2) develop a comprehensive set of workplace obligations for use with employees, 3) consider alternative dimensions of employee psychological contracts, 4) demonstrate reciprocity between obligations, and 5) determine whether psychological contracts directly affect career cognitions. The thesis contains four quantitative studies. Data were collected using self-report questionnaires that contained both established and new measures. Most participants were employees from a large insurance company, government vocational services or educational institutions. The analyses included canonical correlation, factor analysis, development of measurement models and structural analysis. The findings did not strongly support a distinction between relational and transactional obligations. Instead, a five-factor model of psychological contracts emerged from an expanded set of workplace obligations when it was used with two separate employee samples. This model demonstrated reciprocal relationships between the dimensions of employee and employer obligations. It was also found that alternative dimensions of the psychological contract have a direct influence on organisational commitment and career satisfaction. The thesis supports several general conclusions about the nature of employee psychological contracts, appropriate measures and future research. General workplace obligations that apply across different workplaces can be found, and these should continue to be refined. Such workplace obligations group in meaningful ways, and they can be usefully studied in terms of employer support and employee attitudes to work, rather than in terms of relational and transactional dimensions. Furthermore, this thesis shows that reciprocity in psychological contracts can be demonstrated by correlations between dimensions of employee and employer obligations. The measure used for studying reciprocity was new, and it requires further work. However, this measure is as reliable and valid as any currently available. Measurement is the single most urgent issue facing researchers. Finally, this thesis provides sufficient empirical evidence to support the claim that psychological contracts are an important variable for the understanding of careers.