5,883 research outputs found

    Resources, Capabilities, and Routines in Public Organization

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    States, state agencies, multilateral agencies, and other non-market actors are relatively under-studied in the strategic entrepreneurship literature. While important contributions examining public decision makers have been made within the agency-theoretic and transaction-cost traditions, there is little research that builds on resource-based, dynamic capabilities, and behavioral approaches to organizations. Yet public organizations can be usefully characterized as stocks of physical, organizational, and human resources; they interact with other organizations in pursuing a type of competitive advantage; they can possess excess capacity, and may grow and diversify in part according to Penrosean (dynamic) capabilities and behavioral logic. Public organizations may be managed as stewards of resources, capabilities, and routines. This paper shows how resource-based, (dynamic) capabilities, and behavioral approaches shed light on the nature and governance of public organizations and suggests a research agenda for public entrepreneurship that reflects insights gained from applying strategic management theory to public organization.

    Toward a Theory of Public Entrepreneurship

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    This paper explores innovation, experimentation, and creativity in the public domain and in the public interest. Researchers in various disciplines have studied public entrepreneurship, but there is little research specifically on the nature, incentives and constraints of public entrepreneurship to innovate in the public interest. We begin by extending concepts of the entrepreneurial firm to include greater interactions in the public domain, and then turn to the role of entrepreneurial firms in fostering institutional change. This focus points toward opportunities for integrating transaction-costs, political and international business theories to achieve a more refined institutional theory of firm-government interactions that incorporates entrepreneurial agency as a principal mechanism for innovating in the fulfillment of public and private interests.

    Polarimetric Multispectral Imaging Technology

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    The Jet Propulsion Laboratory is developing a remote sensing technology on which a new generation of compact, lightweight, high-resolution, low-power, reliable, versatile, programmable scientific polarimetric multispectral imaging instruments can be built to meet the challenge of future planetary exploration missions. The instrument is based on the fast programmable acousto-optic tunable filter (AOTF) of tellurium dioxide (TeO2) that operates in the wavelength range of 0.4-5 microns. Basically, the AOTF multispectral imaging instrument measures incoming light intensity as a function of spatial coordinates, wavelength, and polarization. Its operation can be in either sequential, random access, or multiwavelength mode as required. This provides observation flexibility, allowing real-time alternation among desired observations, collecting needed data only, minimizing data transmission, and permitting implementation of new experiments. These will result in optimization of the mission performance with minimal resources. Recently we completed a polarimetric multispectral imaging prototype instrument and performed outdoor field experiments for evaluating application potentials of the technology. We also investigated potential improvements on AOTF performance to strengthen technology readiness for applications. This paper will give a status report on the technology and a prospect toward future planetary exploration

    Insurance Law

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    Public perception of dentists' ability to manage a medical emergency

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    The importance of dentists to be able to manage a medical emergency in dental practice has been an established concept for many years, with medical emergency training being incorporated into dental undergraduate training programs as far as back as 1981. However, for far longer than this, dentists have held a professional role in the staffing of military field hospitals, providing emergency care to injured and ill members of the armed forces. Despite awareness of the importance of such skills, Australian studies have shown dentists often lack appropriate proficiencies and equipment for the effective and efficient management of medical crises that may arise as a part of routine dentistry. The only identified literature review on medical emergencies within dentistry recently found the majority of both students and graduate dentists were unable to correctly perform life support procedures3. This is a finding of concern when recent studies on the prevalence of medical emergencies in dentistry suggest that the incidence may be increasing, due to a myriad of factors. The populations of developed countries are generally getting older and consequently suffer from more acute and chronic conditions; notably, it has been argued that patients with multiple chronic diseases are more likely to suffer from a medical emergency. Simultaneously, a greater number of practitioners are utilising drugs such as sedatives compared to years past. These findings coincide with observations that dentists are being taught less clinical medical science than they have historically, and are further being seen as service providers to a consumerist public, rather than their trained role as health professionals. Although all schools of dentistry in Australia require their students to hold first aid and basic life support (BLS) certification, the requirements for practicing dentists to undergo ongoing training or medical emergency certification varies across countries and governing bodies. Australian dentists are not specifically required to undergo ongoing training in the management of medical emergencies, despite it being strongly recommended by the Australian Dental Association. Further, the public's expectation of dentists' competence in medical emergency management is likely much higher than what dentists may hold of themselves15, and reports on unpublished studies corroborate this suggestion. In the current military framework, Australian Defence Force (ADF) Dental Officers (DO) are often involved in the early triaging and stabilisation of injured members who have been evacuated to a role two facility but are not yet in receipt of advanced medical care. This too mandates a high level of knowledge and proficiency in emergency medical management. Given the special semi-autonomous status afforded to the self-regulation of dentistry there is a professional responsibility to meet or exceed public expectations, or such deficiencies may be legislatively mandated. To date, no published studies could be found examining the public's opinion of dentists' ability to manage a medical emergency in a dental setting, nor whether a patient's own medical status impacts on whether they visit a dentist because of concerns about a medical emergency. Based on this, the aim of this research is to quantify the public's attitudes towards dentists’ proficiency in a medical crisis

    Prediction and Generation of Binary Markov Processes: Can a Finite-State Fox Catch a Markov Mouse?

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    Understanding the generative mechanism of a natural system is a vital component of the scientific method. Here, we investigate one of the fundamental steps toward this goal by presenting the minimal generator of an arbitrary binary Markov process. This is a class of processes whose predictive model is well known. Surprisingly, the generative model requires three distinct topologies for different regions of parameter space. We show that a previously proposed generator for a particular set of binary Markov processes is, in fact, not minimal. Our results shed the first quantitative light on the relative (minimal) costs of prediction and generation. We find, for instance, that the difference between prediction and generation is maximized when the process is approximately independently, identically distributed.Comment: 12 pages, 12 figures; http://csc.ucdavis.edu/~cmg/compmech/pubs/gmc.ht

    On-Chip Microwave Quantum Hall Circulator

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    Circulators are non-reciprocal circuit elements integral to technologies including radar systems, microwave communication transceivers, and the readout of quantum information devices. Their non-reciprocity arises from the interference of microwaves over the centimetre-scale of the signal wavelength in the presence of bulky magnetic media that break time-reversal symmetry. Here we realize a completely passive on-chip microwave circulator with size one-thousandth the wavelength by exploiting the chiral, slow-light response of a 2-dimensional electron gas (2DEG) in the quantum Hall regime. For an integrated GaAs device with 330 um diameter and 1 GHz centre frequency, a non-reciprocity of 25 dB is observed over a 50 MHz bandwidth. Furthermore, the direction of circulation can be selected dynamically by varying the magnetic field, an aspect that may enable reconfigurable passive routing of microwave signals on-chip

    Palmitoylation of Desmoglein 2 Is a Regulator of Assembly Dynamics and Protein Turnover.

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    Desmosomes are prominent adhesive junctions present between many epithelial cells as well as cardiomyocytes. The mechanisms controlling desmosome assembly and remodeling in epithelial and cardiac tissue are poorly understood. We recently identified protein palmitoylation as a mechanism regulating desmosome dynamics. In this study, we have focused on the palmitoylation of the desmosomal cadherin desmoglein-2 (Dsg2) and characterized the role that palmitoylation of Dsg2 plays in its localization and stability in cultured cells. We identified two cysteine residues in the juxtamembrane (intracellular anchor) domain of Dsg2 that, when mutated, eliminate its palmitoylation. These cysteine residues are conserved in all four desmoglein family members. Although mutant Dsg2 localizes to endogenous desmosomes, there is a significant delay in its incorporation into junctions, and the mutant is also present in a cytoplasmic pool. Triton X-100 solubility assays demonstrate that mutant Dsg2 is more soluble than wild-type protein. Interestingly, trafficking of the mutant Dsg2 to the cell surface was delayed, and a pool of the non-palmitoylated Dsg2 co-localized with lysosomal markers. Taken together, these data suggest that palmitoylation of Dsg2 regulates protein transport to the plasma membrane. Modulation of the palmitoylation status of desmosomal cadherins can affect desmosome dynamics
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