SOCIAL NETWORKS, INDIVIDUAL ORIENTATIONS, AND EMPLOYEE INNOVATION OUTCOMES: A MULTI-THEORETICAL PERSPECTIVE

I examine individual innovation in organizations from a social network perspective. I employ two theoretical lenses to examine innovation outcomes in three separate empirical studies. First, I use a sociopolitical framework to examine how political skill and social network structure interact to predict successful innovation initiation and, ultimately, career success. I find that innovation initiation mediates the relationship between political skill and career success. Moreover, structural holes in employees’ social networks moderate the mediated relationship between political skill and career success such that the relationship is stronger for employees with many structural holes in their social network. Second, I use social resources theory to examine how the characteristics of employees’ social network contacts affect individual innovation behavior. Results suggest that there is a positive relationship between the average amount of professional experience of one’s social network contacts and individual innovation behavior. Similarly, there is a positive relationship between the average creativity level of one’s social network contacts and individual innovation behavior. Each of these relationships is moderated by social structure such that the relationships are stronger for those with fewer structural holes in their social networks. Third, I develop and validate a scale to assess employee behavioral orientations toward brokering disconnected social network contacts. The scale is found to demonstrate convergent, discriminant, and criterion-related validity based on data from two field sites and one student sample. Results indicate that the scale is positively related to innovation support behavior

Postcard: Hand Written Message Requesting an Agriculture Report

This black and white printed postcard contains correspondence from a man seeking information from another man. Handwriting is on the front and back of the card.https://scholars.fhsu.edu/tj_postcards/2169/thumbnail.jp

Kerncraft: A Tool for Analytic Performance Modeling of Loop Kernels

Achieving optimal program performance requires deep insight into the interaction between hardware and software. For software developers without an in-depth background in computer architecture, understanding and fully utilizing modern architectures is close to impossible. Analytic loop performance modeling is a useful way to understand the relevant bottlenecks of code execution based on simple machine models. The Roofline Model and the Execution-Cache-Memory (ECM) model are proven approaches to performance modeling of loop nests. In comparison to the Roofline model, the ECM model can also describes the single-core performance and saturation behavior on a multicore chip. We give an introduction to the Roofline and ECM models, and to stencil performance modeling using layer conditions (LC). We then present Kerncraft, a tool that can automatically construct Roofline and ECM models for loop nests by performing the required code, data transfer, and LC analysis. The layer condition analysis allows to predict optimal spatial blocking factors for loop nests. Together with the models it enables an ab-initio estimate of the potential benefits of loop blocking optimizations and of useful block sizes. In cases where LC analysis is not easily possible, Kerncraft supports a cache simulator as a fallback option. Using a 25-point long-range stencil we demonstrate the usefulness and predictive power of the Kerncraft tool.Comment: 22 pages, 5 figure

Charge Exchange in Low-Energy H, D + C4+ Collisions with Full Account of Electron Translation

We report the application of the quantum approach, which takes full account of electron translation at low collisional energies, to the charge exchange process H, D + C4+ → H+, D+ + C3+(3s; 3p; 3d). The partial and the total integral cross sections of the process are calculated in the energy range from 1 till 60 eV/amu. It is shown that the present results are independent from the upper integration limit for numerical solution of the coupled channel equations although nonadiabatic couplings remain nonzero up to infinity. The calculated partial and total cross sections are in agreement with the previous low-energy calculations and the available experimental data. It is shown that for low collisional energies the isotopic effect takes place. The observed effect is explained in terms of the nonadiabatic dynamics.National Science FoundationVolkswagenstiftungFonds National de la Recherche Scientifique de Belgiqu

On the completeness of impulsive gravitational wave space-times

We consider a class of impulsive gravitational wave space-times, which generalize impulsive pp-waves. They are of the form $M=N\times\mathbb{R}^2_1$, where $(N,h)$ is a Riemannian manifold of arbitrary dimension and $M$ carries the line element $ds^2=dh^2+ 2dudv+f(x)\delta(u)du^2$ with $dh^2$ the line element of $N$ and $\delta$ the Dirac measure. We prove a completeness result for such space-times $M$ with complete Riemannian part $N$.Comment: 13 pages, minor changes suggested by the referee

On the Geroch-Traschen class of metrics

We compare two approaches to semi-Riemannian metrics of low regularity. The maximally 'reasonable' distributional setting of Geroch and Traschen is shown to be consistently contained in the more general setting of nonlinear distributional geometry in the sense of Colombea

Counting linear extensions of posets with determinants of hook lengths

We introduce a class of posets, which includes both ribbon posets (skew shapes) and $d$-complete posets, such that their number of linear extensions is given by a determinant of a matrix whose entries are products of hook lengths. We also give $q$-analogues of this determinantal formula in terms of the major index and inversion statistics. As applications, we give families of tree posets whose numbers of linear extensions are given by generalizations of Euler numbers, we draw relations to Naruse-Okada's positive formulas for the number of linear extensions of skew $d$-complete posets, and we give polynomiality results analogous to those of descent polynomials by Diaz-L\'opez, Harris, Insko, Omar, and Sagan

Isomorphisms of algebras of Colombeau generalized functions

We show that for smooth manifolds X and Y, any isomorphism between the special algebra of Colombeau generalized functions on X, resp. Y is given by composition with a unique Colombeau generalized function from Y to X. We also identify the multiplicative linear functionals from the special algebra of Colombeau generalized functions on X to the ring of Colombeau generalized numbers. Up to multiplication with an idempotent generalized number, they are given by an evaluation map at a compactly supported generalized point on X.Comment: 10 page

The individualised needs for service assessment (INSA) for children and adolescents with serious emotional disturbance

The Individualised Needs for Service Assessment (INSA) for children and adolescents with serious emotional disturbance was developed in response to the lack of a systematic approach to needs assessment compatible with individualised service planning. Functioning is assessed for 10 functional domains. Service providers rate service provision using a taxonomy of generic service items that are generalisable and comprehensible across different organisational units and systems of care. In addition, service providers rate the anticipated clinical effectiveness of each service item and the acceptability of each item to the child or adolescent and family. Drawing on a similar logic structure to that characterising the Needs for Care Assessment of the British Medical Research Council, these data are linked to produce a need status, for example unmet need, no need and met need. The INSA may be suitable for use by service providers, planners, policy makers, researchers, managed care organisations and service purchasers