Indigenous entrepreneurship as a research field : developing a definitional framework from the emerging canon

This study investigates the possibility and utility of clearly defining Indigenous entrepreneurship as a distinct disciplinary field of science and charting for it a preparadigmatic framework that distinguishes this field of scholarship from all others. This study uses a strategy of literature search and examination to argue that Indigenous entrepreneurship, as a research area, is sufficiently distinguished from both mainstream entrepreneurship and other social and management sciences to constitute a legitimate, well defined sub-field of research in its own right. The study provides both a formal definition of the field and an illustrated theoretical framework to describe it.<br /

Attainment of high magnetostriction in vanadium permendur by mechanical thermal treatmeant

Magnetostriction measurements have been made on Supermendur and Vanadium Permendur alloys at fields of 0-500 oersteds. The effect of cold rolling and of subsequent magnetic annealing and straidht annealing reatments on the magnetostriction of these alloys is reported

A diagnosis of low-order dynamics in the atmosphere of Mars

Introduction: There is considerable evidence that shows that the Martian atmosphere behaves in a more regular fashion than its terrestrial counterpart [1, 2, 3, 4]. This evidence leads to the hypothesis of theMartian climate attractor being of a relatively low dimension, which, in turn, would imply the possibility of describing the state of the atmosphere by means of a relatively few degrees of freedom. We explore this hypothesis by assuming that the atmospheric total energy (TE), i.e. the sum of kinetic energy and total potential energy (gravitational potential energy plus internal energy), is confined in a few coherent structures which dynamically interact nonlinearly with each other

Transient teleconnection event at the onset of a planet-encircling dust storm on Mars

We use proper orthogonal decomposition (POD) to study a transient teleconnection event at the onset of the 2001 planet-encircling dust storm on Mars, in terms of empirical orthogonal functions (EOFs). There are several differences between this and previous studies of atmospheric events using EOFs. First, instead of using a single variable such as surface pressure or geopotential height on a given pressure surface, we use a dataset describing the evolution in time of global and fully three-dimensional atmospheric fields such as horizontal velocity and temperature. These fields are produced by assimilating Thermal Emission Spectrometer observations from NASA's Mars Global Surveyor spacecraft into a Mars general circulation model. We use total atmospheric energy (TE) as a physically meaningful quantity which weights the state variables. Second, instead of adopting the EOFs to define teleconnection patterns as planetary-scale correlations that explain a large portion of long time-scale variability, we use EOFs to understand transient processes due to localised heating perturbations that have implications for the atmospheric circulation over distant regions. The localised perturbation is given by anomalous heating due to the enhanced presence of dust around the northern edge of the Hellas Planitia basin on Mars. We show that the localised disturbance is seemingly restricted to a small number (a few tens) of EOFs. These can be classified as low-order, transitional, or high-order EOFs according to the TE amount they explain throughout the event. Despite the global character of the EOFs, they show the capability of accounting for the localised effects of the perturbation via the presence of specific centres of action. We finally discuss possible applications for the study of terrestrial phenomena with similar characteristics

Collaboration with entrepreneurship education programmes : building spinout capacity at universities

As the University Spin Out (USO) has become a highly desirable outcome for commercialization efforts, the development of entrepreneurial capacity within the university system becomes increasingly more important. We hypothesize that entrepreneurship education (EE) programs ceterus paribus may play a role in developing this capacity. This paper examines the attitudes and perceptions of academics who are directly involved in the field of EE programs with four research goals in mind: 1) to determine whether or not there are perceived advantages to collaboration between EE programs and technology transfer departments, 2) identify specific factors that influence these perceptions, (3) query academics as to perceived barriers to collaboration, and (4) to identify whether collaborations already exist and categorize them. Our findings suggest that significant advantages from collaboration between these two functions are perceived and that indirect linkages are believed to be more important than direct linkages.<br /

University entrepreneurship : context, process and performance

This project embraced empirical work that studied existing research commercialization systems (RCS) at both first tier and second tier universities, found them flawed and produced an enhanced framework that is definitely applicable to second tier universities (the vast majority) and possibly applicable to first tier universities as well

Measuring the Integration of Social and Environmental Missions in Hybrid Organizations

The authors gratefully acknowledge the excellent suggestions of the Section Editor, Julia Roloff and the three anonymous reviewers. We also thank the many Certified B Corporations for their participation in this study. The first author acknowledges research support from the Initiative for Regulation and Applied Economic Analysis (IRAEA) at Montana State University.Peer reviewedPostprin

Reduced-order dynamics of the Martian atmospheric dynamics

In this paper we explore the possibility of deriving low-dimensional models of the dynamics of the Martian atmosphere. The analysis consists of a Proper Orthogonal Decomposition (POD) of the atmospheric streamfunction after first decomposing the vertical structure with a set of eigenmodes. The vertical modes were obtained from the quasi-geostrophic vertical structure equation. The empirical orthogonal functions (EOFs) were optimized to represent the atmospheric total energy. The total energy was used as the criterion to retain those modes with large energy content and discard the rest. The principal components (PCs) were analysed by means of Fourier analysis, so that the dominant frequencies could be identified. It was possible to observe the strong influence of the diurnal cycle and to identify the motion and vacillation of baroclinic waves

Tris{2-[(2,6-dimethyl­phen­yl)amino]­eth­yl}amine

The title compound, C30H42N4, is an aryl­ated tris­(amino­eth­yl)amine derivative which was obtained by reducing the corresponding tris-amide with AlH3. The asymmetric unit consists of one third of a C 3v-symmetric mol­ecule with the tertiary N atom lying on a crystallographic threefold axis

Low-order dynamical behavior in the martian atmosphere: Diagnosis of general circulation model results

The hypothesis of a low dimensional martian climate attractor is investigated by the application of the proper orthogonal decomposition (POD) to a simulation of martian atmospheric circulation using the UK Mars general circulation model (UK-MGCM). In this article we focus on a time series of the interval between autumn and winter in the northern hemisphere, when baroclinic activity is intense. The POD is a statistical technique that allows the attribution of total energy (TE) to particular structures embedded in the UK-MGCM time-evolving circulation. These structures are called empirical orthogonal functions (EOFs). Ordering the EOFs according to their associated energy content, we were able to determine the necessary number to account for a chosen amount of atmospheric TE. We show that for Mars a large fraction of TE is explained by just a few EOFs (with 90% TE in 23 EOFs), which apparently support the initial hypothesis. We also show that the resulting EOFs represent classical types of atmospheric motion, such as thermal tides and transient waves. Thus, POD is shown to be an efficient method for the identification of different classes of atmospheric modes. It also provides insight into the non-linear interaction of these modes