606 research outputs found
Teaching Clinical Sociology: The Introductory Course
This paper discusses the aims and format of an introductory course in clinical sociology. It reviews the process of teaching clinical sociology as a profession and teaching the theoretical basis that distinguishes the field. Case studies, guest practitioners, and practical exercises are used to prompt an application and integration of the acquired knowledge. Ideally, the course reviewed here can serve as a model for others devising courses in this emerging field or for those attempting to bring some uniformity to the clinical sociology curriculum
Identification of Violence in Psychiatric Case Presentations
Previous research on medical discourse suggests that physicians minimize patients\u27 social problems through conversational and linguistic interactions. There has been little assessment, however, of the neglect of violence by psychiatric staff. In an attempt to address this important area, the case presentations of 77 recently violent psychiatric patients were examined. A contextual analysis of the violence mentioned during the case presentations revealed four categories of identification violence as part of the primary problem, as a psychiatric disorder, as an unrelated incident, or not mentioned at all In nearly two-thirds of the case presentations, the violence was not identified as part of the primary problem The findings and case examples substantiate the assertion that social problems are neglected, minimized, or medicalized in medical discourse They also suggest that clinical protocol should be established to ensure more extensive consideration of the dangerousness implied by reported violenc
Energy preserving evolutions over Bosonic systems
The exponential convergence to invariant subspaces of quantum Markov
semigroups plays a crucial role in quantum information theory. One such example
is in bosonic error correction schemes, where dissipation is used to drive
states back to the code-space - an invariant subspace protected against certain
types of errors. In this paper, we investigate perturbations of quantum
dynamical semigroups that operate on continuous variable (CV) systems and admit
an invariant subspace. First, we prove a generation theorem for quantum Markov
semigroups on CV systems under the physical assumptions that (i) the generator
has GKSL form with corresponding jump operators defined as polynomials of
annihilation and creation operators; and (ii) the (possibly unbounded)
generator increases all moments in a controlled manner. Additionally, we show
that the level sets of operators with bounded first moments are admissible
subspaces of the evolution, providing the foundations for a perturbative
analysis. Our results also extend to time-dependent semigroups. We apply our
general framework to two settings of interest in continuous variables quantum
information processing. First, we provide a new scheme for deriving continuity
bounds on the energy-constrained capacities of Markovian perturbations of
Quantum dynamical semigroups. Second, we provide quantitative perturbation
bounds for the steady state of the quantum Ornstein Uhlenbeck semigroup and the
invariant subspace of the photon dissipation used in bosonic error correction
Revisiting the metal-to-metal transition in -AgNiO
The layered delafossite compound AgNiO with stacking symmetry
undergoes a structural metal-to-metal transition at K. It
has been described in the past as a charge-ordering transition, where local
spins are formed on part of the Ni sites. By means of first-principles
many body calculations, we show that the transition is in fact a site-selective
Mott transition on the Ni sublattice with only minor charge differentiation.
Key to this finding is the uncovering of ligand-hole physics, rendering a
Ni instead of a formal Ni oxidation state, in conjunction with
strong local Coulomb repulsions.Comment: 4 pages, 4 figure
Gluten intake in 6- to 36-month-old Danish infants and children
Coeliac disease (CD) affects about 1 % of the general population. Information concerning gluten intake in the general population is scarce. In particular, variation in gluten intake during the complementary feeding period may be an independent risk factor in CD pathogenesis. We determined the intake of gluten from wheat, barley, rye and oats in a cross-sectional National Danish Survey of Dietary Habits among Infants and Young Children (2006–2007). The study population comprised a random sample of 1743 children aged 6–36 months, recruited from the National Danish Civil Registry. The protein contents from wheat, rye, barley and oats were found in the National Danish Food Composition Table, and multiplied with the amounts in the recipes. The amounts of gluten were calculated as the amount of cereal protein × 0·80 for wheat and oats, ×0·65 for rye and ×0·50 for barley. Dietary intake was recorded daily for seven consecutive days in pre-coded food records supplemented with open-answer possibilities. Gluten intake increased with age (P < 0·0001). Oats were introduced first, rapidly outpaced by wheat, the intake of which continued to increase with age, whereas oats started to decrease at 12 months. Boys had a higher intake of energy (P ≤ 0·0001) and all types of gluten, except for barley (P ≤ 0·87). In 8–10-month-old (P < 0·0001) and 10–12-month-old (P = 0·007), but not in 6–8-month-old infants (P = 0·331), non-breast-fed infants had higher total gluten intake than partially breast-fed infants. In conclusion, this study presents representative population-based data on gluten intake in Danish infants and young children
Continuity of quantum entropic quantities via almost convexity
Based on the proofs of the continuity of the conditional entropy by Alicki,
Fannes, and Winter, we introduce in this work the almost locally affine (ALAFF)
method. This method allows us to prove a great variety of continuity bounds for
the derived entropic quantities. First, we apply the ALAFF method to the
Umegaki relative entropy. This way, we recover known almost tight bounds, but
also some new continuity bounds for the relative entropy. Subsequently, we
apply our method to the Belavkin-Staszewski relative entropy (BS-entropy). This
yields novel explicit bounds in particular for the BS-conditional entropy, the
BS-mutual and BS-conditional mutual information. On the way, we prove almost
concavity for the Umegaki relative entropy and the BS-entropy, which might be
of independent interest. We conclude by showing some applications of these
continuity bounds in various contexts within quantum information theory.Comment: 68 pages, 6 figure
Electronic correlations and superconducting instability in LaNiO under high pressure
Motivated by the report of superconductivity in bilayer LaNiO at
high pressure, we examine the interacting electrons in this system.
First-principles many-body theory is utilized to study the normal-state
electronic properties. Below 100\,K, a multi-orbital non-Fermi liquid state
resulting from loss of Ni-ligand coherence within a flat-band dominated
low-energy landscape is uncovered. The incoherent low-temperature Fermi surface
displays strong mixing between Ni- and Ni- orbital
character. In a model-Hamiltonian picture, spin fluctuations originating mostly
from the Ni- orbital give rise to strong tendencies towards a
superconducting instability with order parameter. The dramatic
enhancement of in pressurized LaNiO is due to stronger
Ni- correlations compared to those in the infinite-layer nickelates.Comment: 5 pages, 4 figure
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