Spectroscopic factors for nucleon knock-out from 16O at small missing energy.

Spectroscopic factors for one-nucleon knock-out fro

On the Analytic Structure of the Quark Self-Energy in Nambu-Jona- Lasinio Models

The self-energy of quarks is investigated for various models which are inspired by the Nambu--Jona-Lasinio (NJL) model. Including, beyond the Hartree-Fock approximation, terms up to second-order in the quark interaction, the real and imaginary parts of scalar and vector components of the self-energy are discussed. The second-order contributions depend on the energy and momentum of the quark under consideration. This leads to solutions of the Dirac equation which are significantly different from those of a free quark or a quark with constant effective mass, as obtained in the Hartree-Fock approximation.Comment: 15 pages LaTeX, 6 figures can be obtained from author

Dependence of interface conductivity on relevant physical parameters in polarized Fermi mixtures

We consider a mass-asymmetric polarized Fermi system in the presence of Hartree-Fock (HF) potentials. We concentrate on the BCS regime with various interaction strengths and numerically obtain the allowed values of the chemical and HF potentials, as well as the mass ratio. The functional dependence of the heat conductivity of the N-SF interface on relevant physical parameters, namely the temperature, the mass ratio, and the interaction strength, is obtained. In particular, we show that the interface conductivity starts to drop with decreasing temperature at the temperature, $T_{\text{m}}$, where the mean kinetic energy of the particles is just sufficient to overcome the SF gap. We obtain $T_{\text{m}}$ as a function of the mass ratio and the interaction strength. The variation of the heat conductivity, at fixed temperature, with the HF potentials and the imbalance chemical potential is also obtained. Finally, because the range of relevant temperatures increases for larger values of the mass ratio, we consider the $^6\text{Li}$-$^{40}\text{K}$ mixture separately by taking the temperature dependence of the pair potential into account.Comment: To appear in Physica C (2012

Two tricritical lines from a Ginzburg-Landau expansion: application to the LOFF phase

We study the behavior of the two plane waves configuration in the LOFF phase close to T=0. The study is performed by using a Landau-Ginzburg expansion up to the eighth order in the gap. The general study of the corresponding grand potential shows, under the assumption that the eighth term in the expansion is strictly positive, the existence of two tricritical lines. This allows to understand the existence of a second tricritical point for two antipodal plane waves in the LOFF phase and justifies why the transition becomes second order at zero temperature. The general analysis done in this paper can be applied to other cases.Comment: LaTex file, 15 pages, 6 figure

Computing the (Un)computable: A Computationally-Augmented Perspective on the Yasukuni Shrine Controversy

Computational methods have been used with increasing frequency in the social sciences and humanities, due to the availability of digital sources and computing power to study everything from changes in the meanings of words in Latin texts to how knowledge was categorized in eighteen century encyclopedias. Recent trends in the fields of digital humanities and computational social science include statistical methods like machine learning, requiring large pre-tagged and annotated sets of documents which in turn necessitates a great deal of prior work to create data to use with such methods. This reliance on large corpora of annotated data limits the questions and topics one can investigate to those for which such resources already exist or where significant effort is available to make such annotations. With unannotated corpora, such as what one can gather from the internet automatically using web scraping, a significantly wider range of topics are able to be addressed with computational methods. Such data can be unstructured or semi-structured, like newspaper articles, movie reviews, or tweets. While the unannotated nature of the data does somewhat limit the methods of analyzing the data, a data augmented approach to history using unannotated corpora is still useful. In this thesis, I study the utility of term frequency analysis and sentiment analysis methods to determine how useful these methods are as an aid to historical analysis. In particular, I am using these methods to understand and analyze changes in discourse one particular historical issue over time

Two-fluid models of superfluid neutron star cores

Both relativistic and non-relativistic two-fluid models of neutron star cores are constructed, using the constrained variational formalism developed by Brandon Carter and co-workers. We consider a mixture of superfluid neutrons and superconducting protons at zero temperature, taking into account mutual entrainment effects. Leptons, which affect the interior composition of the neutron star and contribute to the pressure, are also included. We provide the analytic expression of the Lagrangian density of the system, the so-called master function, from which the dynamical equations can be obtained. All the microscopic parameters of the models are calculated consistently using the non-relativistic nuclear energy density functional theory. For comparison, we have also considered relativistic mean field models. The correspondence between relativistic and non-relativistic hydrodynamical models is discussed in the framework of the recently developed 4D covariant formalism of Newtonian multi-fluid hydrodynamics. We have shown that entrainment effects can be interpreted in terms of dynamical effective masses that are larger in the relativistic case than in the Newtonian case. With the nuclear models considered in this work, we have found that the neutron relativistic effective mass is even greater than the bare neutron mass in the liquid core of neutron stars.Comment: 24 pages, 15 figures, accepted for publication in MNRA

Metaphorical Imagery in Colossians: The Narrative of Christian Living

Muther, Paul D. “Metaphorical Imagery in Colossians: The Narratives of Christian Living.” STM thesis, Concordia Seminary, 2019. 114 pp. Although many recent theologians employ conceptual metaphor theory to the Bible’s imagery surrounding the Gospel, few apply the same theory to the metaphors of Christian living. Although many theologians develop models to demonstrate the overall picture of Christian living, few tease out the implications of individual metaphors throughout a given work. By applying conceptual metaphor theory and Justin Rossow’s narrative analysis tool of the actantial model to the text of Paul’s letter to the Colossians, this STM thesis examines three metaphors that Paul uses as he describes Christian living: CHRISTIAN LIFE IS ἈΓΏΝ, CHRISTIAN CHURCH IS ΣΏΜΑ, CHRISTIAN LIFE IS ΠΕΡΙΠΑΤΈΩ. After an examination, this thesis develops each metaphor’s narrative insights for the tasks of preaching and teaching. This will provide a fresh avenue to see the logic behind the biblical text and help readers not only to hear Paul’s descriptions of the Christian life but also to think the way Paul thinks of the Christian life

CPR Ready: Educating and Empowering To Improve Sudden Cardiac Arrest Survival in Philadelphia

Learning Objectives: Highlight the public health impact of out-of-hospital cardiac arrest Describe the latest research on the effectiveness of hands-only cardiopulmonary resuscitation (CPR) compared to traditional CPR Summarize methods to improve the effectiveness and likelihood of bystander response to sudden cardiac arrest Provide an overview of various technology-driven solutions to increase bystander response Presentation: 49:17 Videos embedded in his presentation: Slide 19: TU Delft-Ambulance Drone Slide 23: Ken Jeong AHA Hands-Only CPR vide