Cognitive and affective determinants of entrepreneurial decisions experimentally examined

Objectives. Our study investigates the role of emotions and cognitions in the pre-entrepreneurial decision-making process, i.e., the process prior to the decision to exploit an entrepreneurial opportunity, which has only looked at by few researchers so far. Methods. An online questionnaire experiment with three different samples, i.e., employees, students, and entrepreneurs (N = 578) using 16 different experimentally manipulated entrepreneurial scenarios was conducted. Results. Findings indicate that the relationship between the characteristics of an entrepreneurial opportunity and the evaluation of it is mediated by cognitive appraisals. Moreover, negative and positive affects moderate the relationship between the evaluation of an entrepreneurial opportunity and the decision to exploit it. Conclusion. This study confirms the central assumption of cognitive appraisal theories of emotion which state that the subjective representation of objective entrepreneurial opportunities better predicts the decision to exploit an entrepreneurial opportunity than the objective characteristics of the entrepreneurial situation

Transforming child welfare: from explicit to implicit control of families

Through a historical review of child welfare laws and policies between 1896 and 1992 in Norway, this article investigates the state control of families. The central questions in this article relate to the transformations in the forms of state control of families. The research on which this article is based has relied on a genealogical approach. The sources are comprised of previous studies focusing on the historical development of child welfare in Norway. This article argues that state control, from having been explicit in the late nineteenth century, has today become increasingly implicit and hidden. Indeed, the value granted to children's rights and equality has made opposition to state interventions in families difficult. I relate the transformations in state control of families to the affirmation of the norms of ‘egalitarian individualism’. As Norway is amongst the first European countries to make child-centrism a hallmark of its social policies, these findings have implications for EU countries that may follow its path

QND measurement of a superconducting qubit in the weakly projective regime

Quantum state detectors based on switching of hysteretic Josephson junctions biased close to their critical current are simple to use but have strong back-action. We show that the back-action of a DC-switching detector can be considerably reduced by limiting the switching voltage and using a fast cryogenic amplifier, such that a single readout can be completed within 25 ns at a repetition rate of 1 MHz without loss of contrast. Based on a sequence of two successive readouts we show that the measurement has a clear quantum non-demolition character, with a QND fidelity of 75 %.Comment: submitted to PR

Industry 4.0 – LabVIEW Based Industrial IoT Condition Monitoring System

As a result of a substantial shift in focus towards a more digital industry, multiple sectors of industry are now realising the potential of Industry 4.0 and Internet of Things (IoT) technology. The manufacturing industry in particular is subject to unexpected machine downtime from component wear over an extended period. With Industrial IoT (IIoT) technology implemented, there is the potential for gathering large quantities of data, which can be used for preventative maintenance. This research article addresses some of the technological requirements for developing an IoT industrial condition monitoring network, whose composition makes use of wireless devices along with conventional wired methods to enable a series of data capture and control operations in amongst a network of nodes. To provide a platform to host these operations, the industry standard fieldbus protocol Modbus TCP was used in conjunction with the LabVIEW development environment, where a bespoke graphical user interface was developed to provide control and a visual representation of the data collected. In addition, one of the nodes acted as the output for hardware displays, which in turn correlated the alarm status of the user interface. By using industry standard communication protocols, it was also possible to enable connectivity between real industry hardware, further extending the capabilities of the system

Role of relaxation in the quantum measurement of a superconducting qubit using a nonlinear oscillator

We analyze the relaxation of a superconducting flux qubit during measurement. The qubit state is measured with a nonlinear oscillator driven across the threshold of bifurcation, acting as a switching dispersive detector. This readout scheme is of quantum non-demolition type. Two successive readouts are used to analyze the evolution of the qubit and the detector during the measurement. We introduce a simple transition rate model to characterize the qubit relaxation and the detector switching process. Corrected for qubit relaxation the readout fidelity is at least 95%. Qubit relaxation strongly depends on the driving strength and the state of the oscillator.Comment: 4 pages, 4 figure

A Multi-Level View of the Antecedents and Consequences of Trust in Virtual Leaders

Although trust is widely acknowledged as critical to virtual teams, little is known regarding the causes and consequences of trust in leaders of virtual teams. This paper examines the antecedents and consequences of trust in virtual team leaders. Using survey and archival data from a massively multiplayer online game (MMOG), this study’s findings show that trust in the leader is affected by team members’ use of synchronous communication and breadth of communication with leaders as well as team members’ distance from each other. Furthermore, reasoning that team size and culture create a shared context qualifying team members’ experiences, we found that team size and collectivistic values diminished the benefits of synchronous communication and breadth of communication, respectively. The findings also revealed that trust in leaders had a positive relationship to team performance. Detailed discussion of the findings is provided in the conclusion of the paper

Interqubit coupling mediated by a high-excitation-energy quantum object

We consider a system composed of two qubits and a high-excitation-energy quantum object used to mediate coupling between the qubits. We treat the entire system quantum mechanically and analyze the properties of the eigenvalues and eigenstates of the total Hamiltonian. After reproducing well-known results concerning the leading term in the mediated coupling, we obtain an expression for the residual coupling between the qubits in the off state. We also analyze the entanglement between the three objects, i.e. the two qubits and the coupler, in the eigenstates of the total Hamiltonian. Although we focus on the application of our results to the recently realized parametric-coupling scheme with two qubits, we also discuss extensions of our results to harmonic-oscillator couplers, couplers that are near resonance with the qubits and multi-qubit systems. In particular, we find that certain errors that are absent for a two-qubit system arise when dealing with multi-qubit systems.Comment: 15 pages (two-column

MRI measures of middle cerebral artery diameter in conscious humans during simulated orthostasis.

BACKGROUND AND PURPOSE: The relationship between middle cerebral artery (MCA) flow velocity (CFV) and cerebral blood flow (CBF) is uncertain because of unknown vessel diameter response to physiological stimuli. The purpose of this study was to directly examine the effect of a simulated orthostatic stress (lower body negative pressure [LBNP]) as well as increased or decreased end-tidal carbon dioxide partial pressure (P(ET)CO(2)) on MCA diameter and CFV. METHODS: Twelve subjects participated in a CO(2) manipulation protocol and/or an LBNP protocol. In the CO(2) manipulation protocol, subjects breathed room air (normocapnia) or 6% inspired CO(2) (hypercapnia), or they hyperventilated to approximately 25 mm Hg P(ET)CO(2) (hypocapnia). In the LBNP protocol, subjects experienced 10 minutes each of -20 and -40 mm Hg lower body suction. CFV and diameter of the MCA were measured by transcranial Doppler and MRI, respectively, during the experimental protocols. RESULTS: Compared with normocapnia, hypercapnia produced increases in both P(ET)CO(2) (from 36+/-3 to 40+/-4 mm Hg, P CONCLUSIONS: Under the conditions of this study, changes in MCA diameter were not detected. Therefore, we conclude that relative changes in CFV were representative of changes in CBF during the physiological stimuli of moderate LBNP or changes in P(ET)CO(2)