1,694 research outputs found
An Exploration of the Experience of Interaction between the Police and Juvenile Offenders in Taiwan
By developing Foucault’s concepts of power, this paper aims to explore the interaction experience between Taiwanese police and juvenile offenders from a critical perspective.
From macro analysis of social discourse to micro daily practice, the study objectives are to examine whether the police act as a mechanism of discourse formation for juvenile offenders, to articulate how the strategies and techniques are enforced or strengthened and to scrutinise how juveniles are disciplined and resisted.
The findings reveal that the dual-oppositional discourses are constructed by defining juveniles as either ‘normal’ or ‘deviant’. Through the discipline and inspection techniques used by police, juveniles are forced to fit the image of the ‘normal juvenile’.
To maintain a sense of their autonomous self, juveniles choose to resist these stereotypes. The struggle contributes to the criminal discourse reproduction, pushing juveniles into categories of criminal offenders. It is hoped that this paper can offer a framework for analysing and discussing policy in criminology and criminal justice
Light-induced half-quantized Hall effect and axion insulator
Motivated by the recent experimental realization of the half-quantized Hall
effect phase in a three-dimensional (3D) semi-magnetic topological insulator
[M. Mogi et al., Nature Physics 18, 390 (2022)], we propose a scheme for
realizing the half-quantized Hall effect and axion insulator in experimentally
mature 3D topological insulator heterostructures. Our approach involves
optically pumping and/or magnetically doping the topological insulator surface,
such as to break time reversal and gap out the Dirac cones. By toggling between
left and right circularly polarized optical pumping, the sign of the
half-integer Hall conductance from each of the surface Dirac cones can be
controlled, such as to yield half-quantized (), axion (),
and Chern () insulator phases. We substantiate our results based on
detailed band structure and Berry curvature numerics on the Floquet Hamiltonian
in the high-frequency limit. Our paper showcases how topological phases can be
obtained through mature experimental approaches such as magnetic layer doping
and circularly polarized laser pumping and opens up potential device
applications such as a polarization chirality-controlled topological
transistor.Comment: 24 pages, 11 figures, update references, published versio
Interest Rate Rules, Target Policies, and Endogenous Economic Growth in an Open Economy
This paper sets up an endogenous growth model of an open economy in which the monetary authority implements a gradualist interest-rate rule with targets for inflation and economic growth. We show that, under a passive rule, a monetary equilibrium exists and is unique; moreover, the equilibrium is locally determinate. Under an active rule, the open economy either generates multiple equilibria or does not have any equilibrium. If equilibria exist, the high-growth equilibrium is locally determinate while the low-growth equilibrium is a source. Besides these, the stabilization and growth effects of alternative target policies are also explored in this study.Nominal interest rate rules, gradualism, endogenous economic growth
Observation of the non-Hermitian skin effect and Fermi skin on a digital quantum computer
Non-Hermitian physics has attracted considerable attention in the recent
years, in particular the non-Hermitian skin effect (NHSE) for its extreme
sensitivity and non-locality. While the NHSE has been physically observed in
various classical metamaterials and even ultracold atomic arrays, its
highly-nontrivial implications in many-body dynamics have never been
experimentally investigated. In this work, we report the first observation of
the NHSE on a universal quantum processor, as well as its characteristic but
elusive Fermi skin from many-fermion statistics. To implement NHSE dynamics on
a quantum computer, the effective time-evolution circuit not only needs to be
non-reciprocal and non-unitary, but must also be scaled up to a sufficient
number of lattice qubits to achieve spatial non-locality. We show how such a
non-unitary operation can be systematically realized by post-selecting multiple
ancilla qubits, as demonstrated through two paradigmatic non-reciprocal models
on a noisy IBM quantum processor, with clear signatures of asymmetric spatial
propagation and many-body Fermi skin accumulation. To minimize errors from
inevitable device noise, time evolution is performed using a trainable
optimized quantum circuit produced with variational quantum algorithms. Our
study represents a critical milestone in the quantum simulation of
non-Hermitian lattice phenomena on present-day quantum computers, and can be
readily generalized to more sophisticated many-body models with the remarkable
programmability of quantum computers.Comment: 24 pages and 13 figure
CR3 and Dectin-1 Collaborate in Macrophage Cytokine Response through Association on Lipid Rafts and Activation of Syk-JNK-AP-1 Pathway
Copyright: © 2015 Huang et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited Acknowledgments We are grateful to the Second Core Laboratory of Research Core Facility at the National Taiwan University Hospital for confocal microscopy service and providing ultracentrifuge. We thank Dr. William E. Goldman (University of North Carolina, Chapel Hill, NC) for kindly providing WT and ags1-null mutant of H. capsulatum G186A. Funding: This work is supported by research grants 101-2320-B-002-030-MY3 from the Ministry of Science and Technology (http://www.most.gov.tw) and AS-101-TP-B06-3 from Academia Sinica (http://www.sinica.edu.tw) to BAWH. GDB is funded by research grant 102705 from Welcome Trust (http://www.wellcome.ac.uk). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Peer reviewedPublisher PD
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