Nascent academic entrepreneurs and identity work at the boundaries of professional domains

Higher education institutions promote academic entrepreneurship through organizational arrangements such as innovation programs, incubators, and accelerators aimed at implementing the third mission of the university. While research has examined how these multi-professional arrangements support entrepreneurial efforts, less is known about their individual level implications which emerge as researchers are exposed to different professional values and practices. This article draws on a longitudinal qualitative study on an innovation program to investigate through what kinds of identity processes nascent academic entrepreneurs construct their professional identities and how as part of these processes they position themselves in relation to different professional domains. The analysis demonstrates three identity construction processes (hybridization, rejecting hybridization, and transitioning) and their associated identity work tactics (compartmentalizing, protecting, and reframing) at the boundaries of professional domains. Our contribution is in demonstrating how nascent academic entrepreneurs’ identity construction processes are influenced by internally and externally oriented identity work and their interactive dynamics. Moreover, the findings advance our understanding of how individuals can purposefully mould the fluidity of domain boundaries through identity work by making boundaries bridgeable, impermeable, or permeable. These findings have value for those developing organizational arrangements for the promotion of academic entrepreneurship and entrepreneurial identities.

Objective Domain Boundaries Detection in New Caledonian Nickel Laterite from Spectra Using Quadrant Scan

Modelling of 3D domain boundaries using information from drill holes is a standard procedure in mineral exploration and mining. Manual logging of drill holes can be difficult to exploit as the results may not be comparable between holes due to the subjective nature of geological logging. Exploration and mining companies commonly collect geochemical or mineralogical data from diamond drill core or drill chips; however, manual interpretation of multivariate data can be slow and challenging; therefore, automation of any of the steps in the interpretation process would be valuable. Hyperspectral analysis of drill chips provides a relatively inexpensive method of collecting very detailed information rapidly and consistently. However, the challenge of such data is the high dimensionality of the data’s variables in comparison to the number of samples. Hyperspectral data is usually processed to produce mineral abundances generally involving a range of assumptions. This paper presents the results of testing a new fast and objective methodology to identify the lithological boundaries from high dimensional hyperspectral data. This method applies a quadrant scan analysis to recurrence plots. The results, applied to nickel laterite deposits from New Caledonia, demonstrate that this method can identify transitions in the downhole data. These are interpreted as reflecting mineralogical changes that can be used as an aid in geological logging to improve boundary detection.

Evidence for exon shuffling is sensitive to model choice

The exon shuffling theory posits that intronic recombination creates new domain combinations, facilitating the evolution of novel protein function. This theory predicts that introns will be preferentially situated near domain boundaries. Many studies have sought evidence for exon shuffling by testing the correspondence between introns and domain boundaries against chance intron positioning. Here, we present an empirical investigation of how the choice of null model influences significance. Although genome-wide studies have used a uniform null model, exclusively, more realistic null models have been proposed for single gene studies. We extended these models for genome-wide analyses and applied them to 21 metazoan and fungal genomes. Our results show that compared with the other two models, the uniform model does not recapitulate genuine exon lengths, dramatically underestimates the probability of chance agreement, and overestimates the significance of intron-domain correspondence by as much as 100 orders of magnitude. Model choice had much greater impact on the assessment of exon shuffling in fungal genomes than in metazoa, leading to different evolutionary conclusions in seven of the 16 fungal genomes tested. Genome-wide studies that use this overly permissive null model may exaggerate the importance of exon shuffling as a general mechanism of multidomain evolution.

Building GLAMour: Converging practice between Gallery, Library, Archive and Museum entities in New Zealand Memory Institutions

<p>The development of new technology has created a catalyst for escalating amounts of integrative practice between cultural heritage institutions such as galleries, libraries, archives and museums (GLAMs). While discussion centres on collaborative or convergent practice in a digital milieu, there is minimal critical analysis of integrative models of operation in our physical GLAM environments. The increasing development of buildings designed to house collectively our galleries, libraries, archives and museums creates challenges and opportunities for the participating entities. Resource rationalisation, tourism ventures, community engagement and technological determinism are often the embedded drivers for the expansion of these new institutional forms. While the development of these institutions increases, there is a dearth of research considering the implications of these models on the participating entities. How do the gallery, library, archive and museum domains transcend institutional silos to build GLAMour? Through a theoretical framework of organisational symbolism, this interdisciplinary research explores the agency afforded to socio-cultural constructs in challenging the epistemological distinctions drawn between GLAM entities in a physical operating environment. By examining the symbolic points of intersection and integration in integrated memory institutions, this thesis addresses how the participating entities negotiate knowledge across GLAM domain boundaries to build and maintain a 'culture of convergence'. Data analysed from three New Zealand case studies shows how areas of intersection and integration manifest in the collections, identity, organisational infrastructure and institutional architecture of these models. These areas of intersection and integration recursively support and negate the development of a convergent GLAM culture. The depth of integration in the cases studied varied widely over the institutions‘ life cycle. Issues relating to differences in back of house functions, preservation management for individual collection formats, the use and appropriation of space, as well as entity worldviews also heavily influenced the development of a convergent culture. This thesis argues that in building GLAMour there is a tipping point, which, when reached, falls beyond the advantages of cohesiveness and collective representation to a point where integrity and scholarship are impeded. Moreover, integration works best as a layered concept, with the levels and types of integration being dependent upon, and responsive to, each unique operating environment. In theorising the data drawn from the cases, maintaining the integrity of the individual GLAM paradigms whilst looking for opportunities to build integrative layers on top of core GLAM functions has emerged as a constructive approach to the development of future joined-up models of operation. This thesis concludes that the theorised pathways towards convergence between the GLAM domains are not definitive, but rather are a fluid and dynamic process. This is a process that adapts over space/time and is recursively reflected in, and influenced by, the architecture, people, programming, services and unique integrative ethos present in individually integrated memory institutions.</p>

Building GLAMour: Converging practice between Gallery, Library, Archive and Museum entities in New Zealand Memory Institutions

<p>The development of new technology has created a catalyst for escalating amounts of integrative practice between cultural heritage institutions such as galleries, libraries, archives and museums (GLAMs). While discussion centres on collaborative or convergent practice in a digital milieu, there is minimal critical analysis of integrative models of operation in our physical GLAM environments. The increasing development of buildings designed to house collectively our galleries, libraries, archives and museums creates challenges and opportunities for the participating entities. Resource rationalisation, tourism ventures, community engagement and technological determinism are often the embedded drivers for the expansion of these new institutional forms. While the development of these institutions increases, there is a dearth of research considering the implications of these models on the participating entities. How do the gallery, library, archive and museum domains transcend institutional silos to build GLAMour? Through a theoretical framework of organisational symbolism, this interdisciplinary research explores the agency afforded to socio-cultural constructs in challenging the epistemological distinctions drawn between GLAM entities in a physical operating environment. By examining the symbolic points of intersection and integration in integrated memory institutions, this thesis addresses how the participating entities negotiate knowledge across GLAM domain boundaries to build and maintain a 'culture of convergence'. Data analysed from three New Zealand case studies shows how areas of intersection and integration manifest in the collections, identity, organisational infrastructure and institutional architecture of these models. These areas of intersection and integration recursively support and negate the development of a convergent GLAM culture. The depth of integration in the cases studied varied widely over the institutions‘ life cycle. Issues relating to differences in back of house functions, preservation management for individual collection formats, the use and appropriation of space, as well as entity worldviews also heavily influenced the development of a convergent culture. This thesis argues that in building GLAMour there is a tipping point, which, when reached, falls beyond the advantages of cohesiveness and collective representation to a point where integrity and scholarship are impeded. Moreover, integration works best as a layered concept, with the levels and types of integration being dependent upon, and responsive to, each unique operating environment. In theorising the data drawn from the cases, maintaining the integrity of the individual GLAM paradigms whilst looking for opportunities to build integrative layers on top of core GLAM functions has emerged as a constructive approach to the development of future joined-up models of operation. This thesis concludes that the theorised pathways towards convergence between the GLAM domains are not definitive, but rather are a fluid and dynamic process. This is a process that adapts over space/time and is recursively reflected in, and influenced by, the architecture, people, programming, services and unique integrative ethos present in individually integrated memory institutions.</p>

Scanning tunneling microscopy study of CaF2 on Si(111): Observation of metastable reconstructions

The deposition of calcium fluoride (CaF2) on Si(111) at temperatures above 570 °C has been studied with scanning tunnelling microscopy (STM). At such temperatures, triangular calcium fluoride islands are formed both on terraces and along the phase domain boundaries of the (7x7) reconstruction of the Si(111) substrate. In addition to the formation of islands, we observe that CaF2 molecules react with the substrate inducing larges areas of its surface to reconstruct into (√3x√3) and c(2x4) phases. Upon annealing at 600 °C, the abovementioned areas of (√3x√3) and c(2x4) turn into the stables (3x1) phase due to desorption of fluorine. Calcium fluoride islands are stable at this temperature. Depositions of calcium fluoride performed with Si substrate kept at higher temperatures, namely at 680 °C, lead directly to the formation of the (3x1) phase, without passing though the formation of the metastable (√3x√3) and c(2x4) phases. If CaF2/Si(111) is brought at even higher temperatures, Ca also starts desorbing and the (7x7)-Si(111) reconstruction can eventually be restored.

Charged domain boundaries stabilized by translational symmetry breaking in the hybrid improper ferroelectric Ca3–xSrxTi2O7

Charged domain walls and boundaries in ferroelectric materials display distinct phenomena, such as an increased conductivity due to the accumulation of bound charges. Here, we report the electron microscopy observations of atomic-scale arrangements at charged domain boundaries in the hybrid improper ferroelectric Ca2.46Sr0.54Ti2O7. Like in the prototype improper ferroelectric YMnO3, we find that charged domain boundaries in Ca2.46Sr0.54Ti2O7 correspond to out-of-phase boundaries, which separate adjacent domains with a fractional translational shift of the unit cell. In addition, our results show that strontium ions are located at charged domain boundaries. The out-of-phase boundary structure may decrease the polarization charge at the boundary because of the ferrielectric nature of Ca2.46Sr0.54Ti2O7, thereby promoting the stabilization of the charged state. By combining atomic-resolution imaging and density-functional theory calculations, this study proposes an unexplored stabilization mechanism of charged domain boundaries and structural defects accompanying out-of-phase translational shifts.