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Dispositional employability can be understood as a psychosocial process that facilitates the enactment of behaviors directed toward career self-management. This investigation aimed to test the validity of a measure of dispositional employability to predict salient career outcomes in university students. Two studies using distinct samples of students at a multi-campus university in Australia deployed surveys containing measures of dispositional employability, career adaptability, and job search self-efficacy. The measures' properties were tested using principal axis factoring in Study 1 and confirmatory factor analysis in Study 2. Furthermore, hierarchical regression analyses in Study 2 found that dispositional employability has distinctive relations with measures of career adaptability and job search self-efficacy. Our findings inform recommendations for higher education institutions to measure the psychosocial aspects of employability.

The discrete-element model for flows over rough surfaces was recently modified to predict drag and heat transfer for flow over randomly rough surfaces. However, the current form of the discrete-element model requires a blockage fraction and a roughness-element diameter distribution as a function of height to predict the drag and heat transfer of flow over a randomly rough surface. The requirement for a roughness-element diameter distribution at each height from the reference elevation has hindered the usefulness of the discrete-element model and inhibited its incorporation into a computational fluid dynamics (CFD) solver. To incorporate the discrete-element model into a CFD solver and to enable the discrete-element model to become a more useful engineering tool, the randomly rough surface characterization must be simplified. Methods for determining characteristic diameters for drag and heat transfer using complete three-dimensional surface measurements are presented. Drag and heat transfer predictions made using the model simplifications are compared to predictions made using the complete surface characterization and to experimental measurements for two randomly rough surfaces. Methods to use statistical surface information, as opposed to the complete three-dimensional surface measurements, to evaluate the characteristic dimensions of the roughness are also explored. [ABSTRACT FROM AUTHOR]

During development of the central nervous system, expression of the microtubule binding protein doublecortin (DCX) is associated with migration of neuroblasts. In addition to this developmental role, expression of DCX remains high within certain areas of the adult mammalian brain. These areas, mainly the dentate gyrus and the lateral ventricle wall in conjunction with the rostral migratory stream and olfactory bulb, retain the capacity to generate new neurons into adulthood. Adult neurogenesis is typically detected by incorporation of bromodeoxyuridine (BrdU) into dividing cells and colabeling of BrdU-positive cells with markers for mature neurons. To elucidate whether DCX could act as an alternative indicator for adult neurogenesis, we investigated the temporal expression pattern of DCX in neurogenic regions of the adult brain. Analysis of newly generated cells showed that DCX is transiently expressed in proliferating progenitor cells and newly generated neuroblasts. As the newly generated cells began expressing mature neuronal markers, DCX immunoreactivity decreased sharply below the level of detection and remained undetectable thereafter. The transient expression pattern of DCX in neuronal committed progenitor cells/neuroblasts indicates that DCX could be developed into a suitable marker for adult neurogenesis and may provide an alternative to BrdU labeling. This assumption is further supported by our observation that the number of DCX-expressing cells in the dentate gyrus was decreased with age according to the reduction of neurogenesis in the aging dentate gyrus previously reported. J. Comp. Neurol. 467:1–10, 2003. © 2003 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]