200 research outputs found
Typology of Couples Entering Alcohol Behavioral Couple Therapy: An Empirical Approach and Test of Predictive Validity on Treatment Response
Behavioral Couple Therapy (BCT) has garnered considerable empirical support for its efficacy in resolving marital conflict. BCT also has documented success in treating individual health problems, including alcohol use disorders (AUDs). Consistent with the larger BCT framework, Alcohol Behavioral Couple Therapy (ABCT) theory considers social interactions and exchanges in response to alcohol as critical antecedents and reinforcers of alcohol use. Thus, the purported mechanisms behind such components (e.g. positive reciprocity, leveling & editing) are based on the implicit assumption that the relationships of individuals where one partner has a problem with alcohol work similarly to those in distressed couples which neither partner has an alcohol problem. However, this assumption has yet to be tested directly; thus, the aim of the current study was to test whether classification of the presentation of couples in which one partner has an alcohol problem provides similarly meaningful information to what has been documented in the general couples literature. Specifically, typologies of couples seeking ABCT (N = 169) were examined and compared to couple typologies found in previous research on community samples of couples. Additionally, this study aimed to build on the couple typology findings by examining whether typology at the start of treatment predicted alcohol treatment response and outcome. Results suggest that four types of couples can be reliably established in couples seeking ABCT and these couple types resemble couples types found in previous research. Couple type was associated with baseline relationship satisfaction; however, no evidence was found that couple type is associated with alcohol use outcome. The implications of these findings are discussed in the context of general couple therapy and ABCT specifically
The effects of drinkers\u27 concerned significant others on alcohol cue reactivity
Alcohol use disorders (AUDs) are pervasive in society and notoriously difficult to treat successfully. Incorporation of a member of the social network into the therapeutic framework for treating AUDs has been found to improve treatment outcomes compared to individual-focused treatments. The goal of this study was to examine the effects of concerned significant others (CSO) on drinkers neural response to alcohol cues. A sample of social to heavy drinkers (n = 16) completed a functional magnetic resonance imaging (fMRI) scan. During the scan, participants completed an alcohol cue reactivity task twice; one time by themselves, and another time while holding the hand of their CSO. Both participants and their CSOs completed a brief battery of psychological questionnaires. Results showed minimal neural activation in response to the cue reactivity paradigm. The interaction of hand condition by alcohol cue reactivity showed some significant activation in the areas of the medial prefrontal cortex, an area implicated in alcohol use disorders and evaluation of reward. This pattern of activation appeared to be moderated by CSO level of drinking, CSO support for abstinence, and relationship satisfaction. Possible reasons for the failure to detect a significant effect of alcohol cues on neural response are discussed. The implications of the current study, as well as potential future directions also are addressed
1865-04-08 Benjamin Ladd seeks information about the deaths of Alfred W. Cunningham (4th Maine) and John L. Pinkham (20th Maine)
https://digitalmaine.com/cw_me_4th_regiment_corr/1547/thumbnail.jp
Recursive quantum repeater networks
Internet-scale quantum repeater networks will be heterogeneous in physical
technology, repeater functionality, and management. The classical control
necessary to use the network will therefore face similar issues as Internet
data transmission. Many scalability and management problems that arose during
the development of the Internet might have been solved in a more uniform
fashion, improving flexibility and reducing redundant engineering effort.
Quantum repeater network development is currently at the stage where we risk
similar duplication when separate systems are combined. We propose a unifying
framework that can be used with all existing repeater designs. We introduce the
notion of a Quantum Recursive Network Architecture, developed from the emerging
classical concept of 'recursive networks', extending recursive mechanisms from
a focus on data forwarding to a more general distributed computing request
framework. Recursion abstracts independent transit networks as single relay
nodes, unifies software layering, and virtualizes the addresses of resources to
improve information hiding and resource management. Our architecture is useful
for building arbitrary distributed states, including fundamental distributed
states such as Bell pairs and GHZ, W, and cluster states.Comment: 14 page
The efficiencies of generating cluster states with weak non-linearities
We propose a scalable approach to building cluster states of matter qubits
using coherent states of light. Recent work on the subject relies on the use of
single photonic qubits in the measurement process. These schemes can be made
robust to detector loss, spontaneous emission and cavity mismatching but as a
consequence the overhead costs grow rapidly, in particular when considering
single photon loss. In contrast, our approach uses continuous variables and
highly efficient homodyne measurements. We present a two-qubit scheme, with a
simple bucket measurement system yielding an entangling operation with success
probability 1/2. Then we extend this to a three-qubit interaction, increasing
this probability to 3/4. We discuss the important issues of the overhead cost
and the time scaling. This leads to a "no-measurement" approach to building
cluster states, making use of geometric phases in phase space.Comment: 21 pages, to appear in special issue of New J. Phys. on
"Measurement-Based Quantum Information Processing
Molecular line mapping of the giant molecular cloud associated with RCW 106 - II. Column density and dynamical state of the clumps
We present a fully sampled C^{18}O (1-0) map towards the southern giant
molecular cloud (GMC) associated with the HII region RCW 106, and use it in
combination with previous ^{13}CO (1-0) mapping to estimate the gas column
density as a function of position and velocity. We find localized regions of
significant ^{13}CO optical depth in the northern part of the cloud, with
several of the high-opacity clouds in this region likely associated with a
limb-brightened shell around the HII region G333.6-0.2. Optical depth
corrections broaden the distribution of column densities in the cloud, yielding
a log-normal distribution as predicted by simulations of turbulence.
Decomposing the ^{13}CO and C^{18}O data cubes into clumps, we find relatively
weak correlations between size and linewidth, and a more sensitive dependence
of luminosity on size than would be predicted by a constant average column
density. The clump mass spectrum has a slope near -1.7, consistent with
previous studies. The most massive clumps appear to have gravitational binding
energies well in excess of virial equilibrium; we discuss possible
explanations, which include magnetic support and neglect of time-varying
surface terms in the virial theorem. Unlike molecular clouds as a whole, the
clumps within the RCW 106 GMC, while elongated, appear to show random
orientations with respect to the Galactic plane.Comment: 17 pages, to appear in MNRA
Quantum cellular automata quantum computing with endohedral fullerenes
We present a scheme to perform universal quantum computation using global
addressing techniques as applied to a physical system of endohedrally doped
fullerenes. The system consists of an ABAB linear array of Group V endohedrally
doped fullerenes. Each molecule spin site consists of a nuclear spin coupled
via a Hyperfine interaction to an electron spin. The electron spin of each
molecule is in a quartet ground state . Neighboring molecular electron
spins are coupled via a magnetic dipole interaction. We find that an
all-electron construction of a quantum cellular automata is frustrated due to
the degeneracy of the electronic transitions. However, we can construct a
quantum celluar automata quantum computing architecture using these molecules
by encoding the quantum information on the nuclear spins while using the
electron spins as a local bus. We deduce the NMR and ESR pulses required to
execute the basic cellular automata operation and obtain a rough figure of
merit for the the number of gate operations per decoherence time. We find that
this figure of merit compares well with other physical quantum computer
proposals. We argue that the proposed architecture meets well the first four
DiVincenzo criteria and we outline various routes towards meeting the fifth
criteria: qubit readout.Comment: 16 pages, Latex, 5 figures, See http://planck.thphys.may.ie/QIPDDF/
submitted to Phys. Rev.
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