cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Baryonic form factors of the pion and kaon in a chiral quark model
Creators: name: Broniowski, Wojciech
name: Arriola, Enrique Ruiz
name: Sanchez-Puertas, Pablo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The baryonic form factor of charged pions is studied in detail in the Nambu--Jona-Lasinio model with constituent quarks, where the spontaneously broken chiral symmetry is the key dynamical ingredient guaranteeing the would-be Goldstone boson nature of the pseudoscalar mesons octet. In general, this form factor arises when the isospin symmetry is broken, which is the case if the $u$ and $d$ quark masses are split, as in the real world, or if the electromagnetic effects were taken into account. We obtain estimates for this basic property of the pion resulting from the quark mass splitting for a range of model parameters, and importantly, for different pion masses, going up to the values used in lattice QCD. We find very stable model results, with the mean square radius of $π^+$ in the range $(0.05-0.07~{\rm fm})^2$. From charge conjugation, the baryonic form factor of $π^+$ and $π^-$ are equal and opposite. We also obtain the transverse-coordinate, relativistically invariant baryonic density of the charged pion. In $π^+$, the inner region carries a negative, and the outside -- a positive baryon number density, both cancelling to zero, as obviously the pion carries no net baryon charge. We also carry out an analogous analysis for the kaon, where the effect is much larger due to the sizable $s$ and $u/d$ quark mass splitting. We discuss the prospects of lattice QCD measurements of the baryonic form factors of charged pions and kaons.
description: 11 pages, 4 figures, discussion added, version accepted in PRD
Form und Inhalt. Ein Versuch, gegenwärtige methodische Differenzen durchsichtiger und damit überwindbar zu machen. Dargestellt anhand von Ps 150
Creators: name: Schweizer, Harald
Publisher: name: Biblische Notizen
Year: 1970

description: Biblische Notizen, Bd. 3 (1977): Biblische Notizen, Band 3
A License to Abuse? The Need for National Policy Reform of Kinship Care Licensing Procedures
Creators: name: Prater, Amanda
Publisher: name: Columbia Social Work Review
Year: 2019

description: The last 20 to 30 years have seen a significant rise in the use of kinship care as a formal out-of-home placement option for abused or neglected children in the government’s custody. This shift has generated debate concerning the benefits and risks of kinship care, and thus far, research findings are largely inconclusive. Notably, there has not been an accompanying formal and holistic review and reformation of relevant child welfare policies. One particularly critical legislative area that has been over-looked by the existing literature is the process by which states license kinship foster homes. Due to the lack of federal leadership in setting universal safety standards for kinship care licensing procedures, states’ policies may fail to protect children adequately. An overview of current federal policy is presented, and the state of Indiana is used as a case study to provide a basis for understanding the significant gaps in states’ policies that necessitate national policy reform. Federal mandates are necessary to ensure that all states provide a consistent and proper level of safety for vulnerable children. Finally, recommendations for appropriate new policies are made.
description: Columbia Social Work Review, Vol 10 No 1 (2012)
Relative stopping power precision in time-of-flight proton CT
Creators: name: Krah, Nils
name: Dauvergne, Denis
name: Létang, Jean Michel
name: Rit, Simon
name: Testa, Étienne
Publisher: name: arXiv
Year: 2021
Subjects: subject: Medical Physics (physics.med-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Proton computed tomography (CT) is similar to x-ray CT but relies on protons rather than photons to form an image. In its most common operation mode, the measured quantity is the amount of energy that a proton has lost while traversing the imaged object from which a relative stopping power map can be obtained via tomographic reconstruction. To this end, a calorimeter which measures the energy deposited by protons downstream of the scanned object has been studied or implemented as energy detector in several proton CT prototypes. An alternative method is to measure the proton's residual velocity and thus its kinetic energy via the time of flight (TOF) between at least two sensor planes. In this work, we study the precision, i.e. image noise, which can be expected from TOF proton CT systems. We rely on physics models on the one hand and statistical models of the relevant uncertainties on the other to derive closed form expressions for the noise in projection images. The TOF measurement error scales with the distance between the TOF sensor planes and is reported as velocity error in ps/m. We use variance reconstruction to obtain noise maps of a water cylinder phantom given the scanner characteristics and additionally reconstruct noise maps for a calorimeter-based proton CT system as reference. We find that TOF proton CT with 30 ps/m velocity error reaches similar image noise as a calorimeter-based proton CT system with 1% energy error (1 sigma error). A TOF proton CT system with a 50 ps/m velocity error produces slightly less noise than a 2% calorimeter system. Noise in a reconstructed TOF proton CT image is spatially inhomogeneous with a marked increase towards the object periphery. This systematic study of image noise in TOF proton CT can serve as a guide for future developments of this alternative solution for estimating the residual energy of protons after the scanned object.
Cash Transfers in Emergencies
Creators: name: Lee, Jennifer
Publisher: name: Columbia Social Work Review
Year: 2019

description: The famine that began in the Horn of Africa during the summer of 2011 is the worst that the region has seen in over 60 years. With 13.3 million people in need of assistance and the lives of 750,000 in jeopardy, there is an urgent need for a quick and effective response. A growing body of evidence suggests that cash transfers are the most appropriate means of providing assistance in food emergencies. This paper examines the use of cash transfers in food emergencies by providing a brief overview of food security and famines, reviewing literature on the use of cash transfers, and providing an example of cash transfer intervention implemented in Somalia between 2003 and 2004. With evidence of the effectiveness of cash transfers in specific contexts, the question remains why these interventions are not more readily used. This paper argues that the reluctance to use cash transfers is rooted in paternalism, and calls upon donors and organizations to reexamine themselves and their organizations in an effort to not only restore dignity to those in need, but to save lives.
description: Columbia Social Work Review, Vol 10 No 1 (2012)
The early Proterozoic evolution of the Eldee structure, north-west Broken Hill, NSW
Creators: name: Neilson, Ian.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Radiative transfer meets Bayesian statistics: where does a galaxy's [CII] emission come from?
Creators: name: Accurso, Gioacchino
name: Saintonge, Amélie
name: Bisbas, Thomas. G.
name: Viti, Serena
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The [CII] 158$μ$m emission line can arise in all phases of the ISM, therefore being able to disentangle the different contributions is an important yet unresolved problem when undertaking galaxy-wide, integrated [CII] observations. We present a new multi-phase 3D radiative transfer interface that couples Starburst99, a stellar spectrophotometric code, with the photoionisation and astrochemistry codes Mocassin and 3D-PDR. We model entire star forming regions, including the ionised, atomic and molecular phases of the ISM, and apply a Bayesian inference methodology to parametrise how the fraction of the [CII] emission originating from molecular regions, $f_{[CII],mol}$, varies as a function of typical integrated properties of galaxies in the local Universe. The main parameters responsible for the variations of $f_{[CII],mol}$ are specific star formation rate (sSFR), gas phase metallicity, HII region electron number density ($n_e$), and dust mass fraction. For example, $f_{[CII],mol}$ can increase from 60% to 80% when either $n_e$ increases from 10$^{1.5}$ to 10$^{2.5}$cm$^{-3}$, or SSFR decreases from $10^{-9.6}$ to $10^{-10.6}$ yr$^{-1}$. Our model predicts for the Milky Way that $f_{[CII],mol}$$=75.8\pm5.9$%, in agreement with the measured value of 75%. When applying the new prescription to a complete sample of galaxies from the Herschel Reference Survey (HRS), we find that anywhere from 60 to 80% of the total integrated [CII] emission arises from molecular regions.
description: 17 pages including appendices, 14 figures, 3 tables, Accepted for publication in MNRAS
Realizing One-dimensional Metallic States in Graphene via Periodically Coupled Zeroth Pseudo-Landau Levels
Creators: name: Liu, Yi-Wen
name: Zhan, Zhen
name: Wu, Zewen
name: Yan, Chao
name: Yuan, Shengjun
name: He, Lin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strain-induced pseudo-magnetic fields can mimic real magnetic fields to generate a zero-magnetic-field analogue of the Landau levels (LLs), i.e., the pseudo-LLs, in graphene. The distinct nature of the pseudo-LLs enables one to realize novel electronic states beyond that can be feasible with real LLs. Here, we report the realization of one-dimensional (1D) metallic states, which can be described well by the Su-Schrieffer-Heeger model, in graphene via periodically coupled zeroth pseudo-LLs. In our experiment, nanoscale strained structures embedded with pseudo-LLs are generated periodically along 1D channel of suspended graphene monolayer. Our experiments demonstrate that the zeroth pseudo-LLs of these strained structures are coupled to form metallic states, exhibiting a serpentine pattern that snakes back and forth along the 1D suspended graphene monolayer. These results are verified theoretically by large-scale tight-binding calculations of the strained samples. Our result provides a new pathway to realize novel quantum states and engineer the electronic properties of graphene by using the localized pseudo-LLs as building blocks.
Dual Punishment
Creators: name: Smyth, Julie
Publisher: name: Columbia Social Work Review
Year: 2019

description: Children with incarcerated parents are among the most at-risk populations in the United States. The recent trend toward mass incarceration in the United States, especially of women, has harmful implications for children because often their primary caregiver becomes incarcerated. Research indicates that children with incarcerated mothers are at heightened risk for attachment disturbance, leading to depression, anxiety, and other trauma-related stress. Such children are often subject to frequent changing of caregivers within the foster care system, which exacerbates these problems. Child welfare legislation is becoming more sensitive to the needs of children of incarcerated parents, but less reliance on prisons and more alternatives to incarceration are needed in order to mitigate the harmful impact of maternal incarceration on children. This review will focus on the following: (1) a history of the mass incarceration of women; (2) emotional, psychological, and social risk factors for the children of incarcerated women; (3) the intended and unintended repercussions of child welfare legislation; and (4) a case study of an alternative to incarceration program.
description: Columbia Social Work Review, Vol 10 No 1 (2012)
Luckily He Backed Off
Creators: name: Power, Kelsey
Publisher: name: Columbia Social Work Review
Year: 2019

description: Women’s sexual beliefs and behaviors are influenced by the overarching demands of society. This paper discusses a portion of a study completed at a small liberal arts institution in the northeastern United States. Female undergraduates (N = 54) answered an online questionnaire concerning their own sexual compliance attitudes and behaviors. O’Sullivan and Allgeier (1998) define sexual compliance as engaging in unwanted sexual activity. Results from this mixed methods study indicate that participants have engaged in sexual compliance (N = 25, 46%) in their own lives. A series of three fictional vignettes of varying sexual scenarios prompted qualitative narratives from participants. Female respondents endorsed the female character’s use of verbal communication over physical communication of lack of desire to engage in sexual activity in the vignette. However, although women regularly used verbal communication, they expressed reluctance to do so in specific sexual situations out of fear of making themselves and their partners uncomfortable. Results also indicate that participants assigned women as the “gatekeepers” of sexual activity by giving responsibility often wholly to the female character in the scenarios (Simon & Gagnon, 2005, p. 68). This paper discusses how women’s agency in sexual interactions is a prevailing discourse in American culture and is reflected in the compliance behaviors of women. Specific programming endeavors that aim to change this predominant culture are also discussed.
description: Columbia Social Work Review, Vol 10 No 1 (2012)
An Uncommon Disorder That is Fairly Common among Institutionalized Children
Creators: name: Balasingham, Shawna
Publisher: name: Columbia Social Work Review
Year: 2019

description: Reactive attachment disorder (RAD) is a psychological disorder that affects a child’s ability to develop appropriate social relatedness. It was first added to the Diagnostic and Statistical Manual in the 1980s. There are two types of RAD: inhibited, which results in extreme social isolation and watchfulness, and disinhibited, which results in inappropriate social familiarity and lack of discriminate attachment. The disproportionate prevalence of RAD in children in the foster care or orphanage system speaks to the importance of addressing this disorder. It is believed that the prevalence of RAD can be reduced through reforms to these institutions internationally.
description: Columbia Social Work Review, Vol 10 No 1 (2012)
Complex Effective Action and Schwinger Effect
Creators: name: Kim, Sang Pyo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Spontaneous pair production from background fields or spacetimes is one of the most prominent phenomena predicted by quantum field theory. The Schwinger mechanism of production of charged pairs by a strong electric field and the Hawking radiation of all species of particles from a black hole are the consequence of nonperturbative quantum effects. In this review article, the vacuum structure and pair production is reviewed in the in-out formalism, which provides a consistent framework for quantum field theory in the sense that the complex action explains not only the vacuum persistence but also pair production. The current technology of intense lasers is still lower by a few order than the Schwinger limit for electron-positron pair production, while magnetic fields of magnetars on the surface are higher than the Schwinger limit and even higher at the core. On the other hand, the zero effective mass of electron and hole in graphene and Dirac or Weyl semimetals will open a window for experimental test of quantum electrodynamics (QED) phenomena in strong fields.
description: RevTex 7pages, 3 figures; invited review article to "The Universe"
Coulomb interactions and the spatial coherence of femtosecond nanometric electron pulses
Creators: name: Meier, Stefan
name: Hommelhoff, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The transverse coherence of electrons is of utmost importance in high resolution electron microscopes, point-projection microscopes, low-energy electron microscopy and various other applications. Pulsed versions of many of these have recently been realized, mostly relying on femtosecond laser-triggering electron emission from a sharp needle source. We here observe electron interference fringes and measure how the interference visibility becomes reduced as we increase the electron bunch charge. Due to the extremely strong spatio-temporal confinement of the electrons generated here, we observe the visibility reduction already at average electron bunch charges of less than 1 electron per pulse, owing to the stochastic nature of the emission process. We can fully and quantitatively explain the loss of coherence based on model simulations. Via the van Cittert-Zernike theorem we can connect the visibility reduction to an increase of the effective source size. We conclude by discussing emittance, brightness and quantum degeneracy, which have direct ramifications to many setups and devices relying on pulsed coherent electrons.
Deviations in Tribimaximal Mixing From Sterile Neutrino Sector
Creators: name: Dev, S.
name: Raj, Desh
name: Gautam, Radha Raman
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explore the possibility of generating a non-zero $U_{e3}$ element of the neutrino mixing matrix from tribimaximal neutrino mixing by adding a light sterile neutrino to the active neutrinos. Small active-sterile mixing can provide the necessary deviation from tribimaximal mixing to generate a non-zero $θ_{13}$ and atmospheric mixing $θ_{23}$ different from maximal. Assuming no CP-violation, we study the phenomenological impact of sterile neutrinos in the context of current neutrino oscillation data. The tribimaximal pattern is broken in such a manner that the second column of tribimaximal mixing remains intact in the neutrino mixing matrix.
description: 13 pages, 5 figures, 2 tables
The structural evolution of the Bulloo North area, Olary Domain, South Australia : implications for the Proterozoic tectonic evolution of eastern Australia
Creators: name: Fry, Katrina M.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Crucial Conversations
Creators: name: Ramos, Eliza
Publisher: name: Columbia Social Work Review
Year: 2019

description: Guatemala is a country fractured by years of sociopolitical conflict and instability. In the summer of 2011, I secured grant funding to implement supportive counseling and educational services, in conjunction with a local nonprofit organization, to help local children better understand and process the profound effects of the country’s civil war, which ended in 1996. Upon beginning this project, however, it became apparent that many of the children with whom I interacted had limited or no knowledge of the conflict. This article explores the pervasive and systematic avoidance of discussing widespread psychosocial trauma and the potential effects of this avoidance on parents, children, and the greater community. I compare these observations with existing social work and psychology research literature, drawing from the concept of intergenerational trauma, or the transference of trauma symptoms from parent to child. I then discuss whether the avoidance of trauma discussion with children can protect their psychological well-being and prevent the trans- ference of trauma, or if such avoidance leads to increased risk of individual psychological impairment and cyclical community problems. Based upon this analysis, the article finally discusses implications for social workers confronting psychosocial trauma in post-conflict settings.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
title: Gravimetric prospecting: Searching for new hydrocarbon basins using global models
Creators: name: Colpani, Stefano
Publisher: name: Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
Year: 2014

description: The present thesis work consists of a gravimetric prospecting based investigation, implemented on a worldwide 1 by 1 arc degree basis, by means of coupling, in a joint interpretation effort, publicly available global models: specifically, a global gravity disturbance satellite only combined model.
Central star formation in double-peak gas rich radio galaxies
Creators: name: Maschmann, Daniel
name: Melchior, Anne-Laure
name: Combes, Francoise
name: Ciraulo, Barbara Mazzilli
name: Freundlich, Jonathan
name: Halle, Anaelle
name: Drabent, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In a recent work, a large sample of double-peak (DP) emission line galaxies have been identified from the SDSS. While the two peaks could represent two kinematic components, they may be linked to the large bulges which their host galaxies tend to have. Star-forming DP galaxies display a central star formation enhancement and have been discussed to be compatible with a sequence of recent minor mergers. In order to probe merger induced star formation mechanisms, we conducted observations of the molecular gas content of 35 star-forming DP galaxies in the upper part of the main sequence (MS) of star formation with the IRAM 30m telescope. Including similar galaxies 0.3 dex above MS and with existing molecular gas observations from the literature, we finally obtain a sample of 52 such galaxies. We succeed in fitting the same kinematic parameters to the optical ionised and molecular gas emission lines for 10 (19%) galaxies. We find a central star formation enhancement resulting most likely from a galaxy merger or galaxy interaction, which is indicated by an excess of gas extinction found in the centre. This star formation is traced by radio continuum emissions at 150MHz, 1.4 and 3GHz, which are all three linearly correlated in log with the CO luminosity with the same slope. The 52 DP galaxies are found to have a significantly larger amount of molecular gas and larger depletion times, hence a lower star formation efficiency, than the expected values at their distance of the MS. This is consistent with a scenario of minor mergers increasing the mass of bulges and driving gas to the centre. We also exclude the inwards directed gas migration and central star formation enhancement to be the origin of a bar morphology. Hence, these 52 DP galaxies could be the results of recent minor mergers that funnelled molecular gas towards their centre, triggering star formation, but with a moderate efficiency.
description: 33 pages, 19 figures, accepted by A&A
Introduction to Open Science and Research Integrity
Creators: name: Perrin, Sébastien
Publisher: name: Zenodo
Year: 2023
Subjects: open science
research integrity
open access
open data
open research
open source
research data management
research assessment

description: This inaugural session offers to introduce the public to the challenges of open science with particular emphasis on its link with questions related to research integrity. The presentation was followed by an interview with Paola Masuzzo, PhD in Bioinformatics from Ghent University (Belgium) and commited to promote open research practices.
description: Co-funded by the Erasmus+ Programme of the European Union
Comparative performance of selected variability detection techniques in photometric time series
Creators: name: Sokolovsky, K. V.
name: Gavras, P.
name: Karampelas, A.
name: Antipin, S. V.
name: Bellas-Velidis, I.
name: Benni, P.
name: Bonanos, A. Z.
name: Burdanov, A. Y.
name: Derlopa, S.
name: Hatzidimitriou, D.
name: Khokhryakova, A. D.
name: Kolesnikova, D. M.
name: Korotkiy, S. A.
name: Lapukhin, E. G.
name: Moretti, M. I.
name: Popov, A. A.
name: Pouliasis, E.
name: Samus, N. N.
name: Spetsieri, Z.
name: Veselkov, S. A.
name: Volkov, K. V.
name: Yang, M.
name: Zubareva, A. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Photometric measurements are prone to systematic errors presenting a challenge to low-amplitude variability detection. In search for a general-purpose variability detection technique able to recover a broad range of variability types including currently unknown ones, we test 18 statistical characteristics quantifying scatter and/or correlation between brightness measurements. We compare their performance in identifying variable objects in seven time series data sets obtained with telescopes ranging in size from a telephoto lens to 1m-class and probing variability on time-scales from minutes to decades. The test data sets together include lightcurves of 127539 objects, among them 1251 variable stars of various types and represent a range of observing conditions often found in ground-based variability surveys. The real data are complemented by simulations. We propose a combination of two indices that together recover a broad range of variability types from photometric data characterized by a wide variety of sampling patterns, photometric accuracies, and percentages of outlier measurements. The first index is the interquartile range (IQR) of magnitude measurements, sensitive to variability irrespective of a time-scale and resistant to outliers. It can be complemented by the ratio of the lightcurve variance to the mean square successive difference, 1/h, which is efficient in detecting variability on time-scales longer than the typical time interval between observations. Variable objects have larger 1/h and/or IQR values than non-variable objects of similar brightness. Another approach to variability detection is to combine many variability indices using principal component analysis. We present 124 previously unknown variable stars found in the test data.
description: 29 pages, 8 figures, 7 tables; accepted to MNRAS; for additional plots, see http://scan.sai.msu.ru/~kirx/var_idx_paper/
Improved cosmological constraints on the neutrino mass and lifetime
Creators: name: Abellán, Guillermo F.
name: Chacko, Zackaria
name: Dev, Abhish
name: Du, Peizhi
name: Poulin, Vivian
name: Tsai, Yuhsin
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present cosmological constraints on the sum of neutrino masses as a function of the neutrino lifetime, in a framework in which neutrinos decay into dark radiation after becoming non-relativistic. We find that in this regime the cosmic microwave background (CMB), baryonic acoustic oscillations (BAO) and (uncalibrated) luminosity distance to supernovae from the Pantheon catalog constrain the sum of neutrino masses $\sum m_ν$ to obey $\sum m_ν< 0.42$ eV at (95$\%$ C.L.). While the the bound has improved significantly as compared to the limits on the same scenario from Planck 2015, it still represents a significant relaxation of the constraints as compared to the stable neutrino case. We show that most of the improvement can be traced to the more precise measurements of low-$\ell$ polarization data in Planck 2018, which leads to tighter constraints on $τ_{\rm reio}$ (and thereby on $A_s$), breaking the degeneracy arising from the effect of (large) neutrino masses on the amplitude of the CMB power spectrum.
description: 24 pages, 8 figures. v2 matches published JHEP version. Comments welcome!
Effective Employment of Individuals with Mental Health Conditions
Creators: name: Santistevan, Camille
Publisher: name: Columbia Social Work Review
Year: 2019

description: According to the National Alliance on Mental Illness (NAMI), 60% to 90% of individuals with mental health conditions are unemployed. Employer stigma toward hiring people with mental illness, a lack of local-level professional coordination, and ineffective legal mandates have all contributed to underwhelming employment for many qualified individuals. Employment outcomes of people with mental health conditions may be improved with a two-part, local-level employer awareness and stigma reduction campaign coordinated by social workers and other professionals. This article explores prior and ongoing efforts at the national, state, and local levels, and argues that New York City is a prime location to pilot an employer awareness campaign. Recommendations include details for launching such a campaign by building organizational partnerships to harness existing resources.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
Plasma-screening effects in the atrophysically relevant He-like and Li-like Mg and Fe ions
Creators: name: Sahoo, B. K.
name: Das, Madhulita
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The effect of plasma environment on the atomic energy levels of He-like and Li-like Mg and Fe ions have been studied using Debye model. The equation-of-motion coupled-cluster (EOMCC) and Fock-space coupled-cluster (FSCC) formalisms in the relativistic frame work have been adopted to describe the atomic states and the energy levels of the above plasma embedded ions. Salient features of these methods have been described to account the two electron screening effects through the Debye potentials. The two-body screening potential has been derived in the multipole expansion form to evaluate the reduced matrix elements in solving the equation of motion. Using this extended model, we have also predicted that quasi-degeneracy among the energy states having same principal quantum number ($n$) but different angular momentum ($l$) is slacken, whereas fine structure splitting is unaffected with increasing plasma strength. These knowledge are useful in estimatingradiative opacity, photoionization cross sections, line intensities, etc of the aforementioned astrophysical plasmas.
description: 10 pages, 5 tables and 4 figures. arXiv admin note: text overlap with arXiv:1101.3184 by other authors
Environmental Justice and Social Work
Creators: name: Jarvis, Dominoe
Publisher: name: Columbia Social Work Review
Year: 2019

description: Concern for environmental justice has increased in recent decades. Although the environmental justice field is closely linked to social justice, the social work profession has yet to gain a substantive involvement in environmental justice efforts. This article is a call to action for the social work profession and explains why the profession is ideally suited to address issues of environmental justice. It examines how issues of environmental injustice, such as the location of industrial waste facilities in predominantly minority communities, often affect those people who are most afflicted by other forms of injustice. A review of recent literature explains how the social work profession can shift its framework and make important connections to environmental justice. This article also discusses three recommendations for the social work profession to become involved in environmental justice.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
In Search of the Arc
Creators: name: Estabrooks, Elizabeth
Publisher: name: Columbia Social Work Review
Year: 2019

description: Over the past two decades, the epidemic of sexual assault (assault, rape, and harassment) in the U.S. military has garnered increasing media and legislative attention. While activists and survivors have achieved some successes in achieving the passage of stronger policies that address military sexual assault, many of those changes are recent, and much work remains to be done. This paper examines the growth of a social movement over 22 years and seeks to determine how the social movement against military sexual assault contributed to the Department of Defense’s shift from promises to action. I challenge social workers to examine their responsibility to groups whose voice has been silenced or stolen by trauma.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
Effects of coastal topography on the structure and evolution of fronts in southeastern Australia
Creators: name: Lee, Jin Tag.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The Beauty Ideal
Creators: name: Bryant, Susan L.
Publisher: name: Columbia Social Work Review
Year: 2019

description: Black women are particularly vulnerable to the effects of European standards of beauty, because these standards emphasize skin colors and hair types that exclude many black women, especially those of darker skin. Using a social work lens, this article explores the black woman’s internalization of European beauty standards through family, peers, the media, and society, and the related outcomes of this internalization on self-perception, academic achievement, sexual behavior, employment, marital status, and mental health. A review of the research indicates that European standards of beauty can have damaging effects on the life trajectories of black women, especially those with dark skin, primarily in the form of internalized self-hatred. Suggestions are made for social work practitioners to address the effects of these internalized European beauty standards among black women through programming and clinical practice.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
A new way to explore cosmological tensions using gravitational waves and strong gravitational lensing
Creators: name: Cao, Meng-Di
name: Zheng, Jie
name: Qi, Jing-Zhao
name: Zhang, Xin
name: Zhu, Zong-Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In recent years, a crisis in the standard cosmology has been caused by inconsistencies in the measurements of some key cosmological parameters, Hubble constant $H_0$ and cosmic curvature parameter $Ω_K$ for example. It is necessary to remeasure them with the cosmological model-independent methods. In this paper, based on the distance sum rule, we present such a way to constrain $H_0$ and $Ω_K$ simultaneously in the late universe from strong gravitational lensing time delay (SGLTD) data and gravitational wave (GW) standard siren data simulated from the future observation of the Einstein Telescope (ET). Based on the currently 6 observed SGLTD data, we find that the constraint precision of $H_0$ from the combined 100 GW events can be comparable with the measurement from SH0ES collaboration. As the number of GW events increases to 700, the constraint precision of $H_0$ will exceed that of the \textit{Planck} 2018 results. Considering 1000 GW events as the conservative estimation of ET in ten-year observation, we obtain $H_0=73.69\pm 0.36 \mathrm{~km~s^{-1}~Mpc^{-1}}$ with a 0.5\% uncertainty and $Ω_K=0.076^{+0.068}_{-0.087}$. In addition, we simulate 55 SGL systems with 6.6\% uncertainty for the measurement of time-delay distance. By combining with 1000 GWs, we infer that $H_0=73.65\pm0.35 \mathrm{~km~s^{-1}~Mpc^{-1}}$ and $Ω_K=0.008\pm0.048$. Our results suggest that this approach can play an important role in exploring cosmological tensions.
description: 11 pages, 5 figures; accepted for publication in The Astrophysical Journal
Finite-energy pseudoholomorphic planes with multiple asymptotic limits
Creators: name: Siefring, Richard
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 32Q65, 53D42

description: It's known from from work of Hofer, Wysocki, and Zehnder [1996] and Bourgeois [2002] that in a contact manifold equipped with either a nondegenerate or Morse-Bott contact form, a finite-energy pseudoholomorphic curve will be asymptotic at each of its non removable punctures to a single periodic orbit of the Reeb vector field and that the convergence is exponential. We provide examples here to show that this need not be the case if the contact form is degenerate. More specifically, we show that on any contact manifold $(M, ξ)$ with cooriented contact structure one can choose a contact form $λ$ with $\kerλ=ξ$ and a compatible complex structure $J$ on $ξ$ so that for the associated $\mathbb{R}$-invariant almost complex structure $\tilde J$ on $\mathbb{R}\times M$ there exist families of embedded finite-energy $\tilde J$-holomorphic cylinders and planes having embedded tori as limit sets.
description: 16 pages; some typos fixed and minor edits made; to appear in Mathematische Annalen
Suicide and Soul Wound
Creators: name: Zimiles, Eleni
Publisher: name: Columbia Social Work Review
Year: 2019

description: Suicide, the second leading cause of death for American Indian and Alaska Native (AI) youth ages 15 to 24, raises a criti- cal issue for social work research and practice. This paper ar- gues that AI youth suicide is a contemporary manifestation of “soul wound” and expands the definition of soul wound to in- clude present stressors and coping mechanisms for youth that are characterized by a legacy of colonization and cultural oppres- sion. While AI youth come from diverse communities, this paper will demonstrate the importance of examining youth suicide as part of the overall AI experience in the United States. Using an indigenist stress process model framework, it will subsequently examine four forms of stressors informed by the marginalization of the AI population: psychological strains of historical trauma, environmental stressors, quotidian stressors arising from socio- economic factors, and adversity from personal and relational role conflicts. AI youth mediate these stressors through coping mecha- nisms around social support and collective mastery. This paper will conclude with a call to develop an anti-oppressive, culturally relevant social work practice that supports meaningful identity development and collective efficacy.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
The impact of El Niño/Southern oscillation (ENSO) on Botswana rainfall
Creators: name: Phage, Phetolo.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
The Public and the Profession’s Perception of Social Work
Creators: name: Olin, Jeffrey
Publisher: name: Columbia Social Work Review
Year: 2019

description: ABSTRACT The social work profession has long been concerned about its mission and perception. The two interests go hand in hand, because to have an effect on how we as social workers are viewed, we must be self-aware about who we are and what we do. This paper will address how social work periodically reflects upon and re-assesses its purpose because of internal considerations, such as the profession’s ethics, and external forces, including the job market and public perception. Some of the research con- ducted over the years into public perception of social work—as well as that of our clients—will be presented and compared. In addition, I review how the media have portrayed the field, and how we as professionals have marketed ourselves. Finally, some suggestions will be offered, which can be applied at various levels, including direct practice, program development and evaluation, administration, and branding of the profession as a whole.
description: Columbia Social Work Review, Vol 11 No 1 (2013)
Two-dimensional antiferromagnetic semiconductor T'-MoTeI from first principles
Creators: name: Zhang, Michang
name: Li, Fei
name: Ren, Yulu
name: Hu, Tengfei
name: Wan, Wenhui
name: Liu, Yong
name: Ge, Yanfeng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Two-dimensional intrinsic antiferromagnetic semiconductors are expected to stand out in the spintronic field. The present work finds the monolayer T'-MoTeI is intrinsically an antiferromagnetic semiconductor by using first-principles calculation. Firstly, the dimerized distortion of the Mo atoms causes T'-MoTeI to have dynamic stability, which is different from the small imaginary frequency in the phonon spectrum of T-MoTeI. Secondly, T'-MoTeI is an indirect-bandgap semiconductor with 1.35 eV. Finally, in the systematic study of strain effects, there are significant changes in the electronic structure as well as the bandgap, but the antiferromagnetic ground state is not affected. Monte Carlo simulations predict that the Neel temperature of T'-MoTeI is 95 K. The results suggest that the monolayer T'-MoTeI can be a potential candidate for spintronics applications.
description: 6 pages, 7 figures
Additive Functional Regression for Densities as Responses
Creators: name: Han, Kyunghee
name: Müller, Hans-Georg
name: Park, Byeong U.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: We propose and investigate additive density regression, a novel additive functional regression model for situations where the responses are random distributions that can be viewed as random densities and the predictors are vectors. Data in the form of samples of densities or distributions are increasingly encountered in statistical analysis and there is a need for flexible regression models that accommodate random densities as responses. Such models are of special interest for multivariate continuous predictors, where unrestricted nonparametric regression approaches are subject to the curse of dimensionality. Additive models can be expected to maintain one-dimensional rates of convergence while permitting a substantial degree of flexibility. This motivates the development of additive regression models for situations where multivariate continuous predictors are coupled with densities as responses. To overcome the problem that distributions do not form a vector space, we utilize a class of transformations that map densities to unrestricted square integrable functions and then deploy an additive functional regression model to fit the responses in the unrestricted space, finally transforming back to density space. We implement the proposed additive model with an extended version of smooth backfitting and establish the consistency of this approach, including rates of convergence. The proposed method is illustrated with an application to the distributions of baby names in the United States.
Extending Unification in $\mathcal{EL}$ to Disunification: The Case of Dismatching and Local Disunification
Creators: name: Baader, Franz
name: Borgwardt, Stefan
name: Morawska, Barbara
Publisher: name: arXiv
Year: 2016
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: F.4.1; I.2.3; I.2.4

description: Unification in Description Logics has been introduced as a means to detect redundancies in ontologies. We try to extend the known decidability results for unification in the Description Logic $\mathcal{EL}$ to disunification since negative constraints can be used to avoid unwanted unifiers. While decidability of the solvability of general $\mathcal{EL}$-disunification problems remains an open problem, we obtain NP-completeness results for two interesting special cases: dismatching problems, where one side of each negative constraint must be ground, and local solvability of disunification problems, where we consider only solutions that are constructed from terms occurring in the input problem. More precisely, we first show that dismatching can be reduced to local disunification, and then provide two complementary NP-algorithms for finding local solutions of disunification problems.
description: 32 pages, extended version of a paper from RTA'15
Equivalence of stochastic mechanics with Bohmian mechanics
Creators: name: Tan, Ying Oon.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Kondo effect in a non-Hermitian, $\mathcal{PT}$-symmetric Anderson model with Rashba spin-orbit coupling
Creators: name: Kulkarni, Vinayak M
name: Gupta, Amit
name: Vidhyadhiraja, N. S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The non-interacting and non-Hermitian, parity-time ($\mathcal{PT}$)-symmetric Anderson model exhibits an exceptional point (EP) at a non-Hermitian coupling $g=1$, which remains unrenormalized in the presence of interactions (Lourenco et al, arXiv:1806.03116), where the EP was shown to coincide with the quantum critical point (QCP) for Kondo destruction. In this work, we consider a quantum dot hybridizing with metallic leads having Rashba spin-orbit coupling ($λ$). We show that for a non-Hermitian hybridization, $λ$ can renormalize the exceptional point even in the non-interacting case, stabilizing $\mathcal{PT}$-symmetry beyond $g=1$. Through exact diagonalization of a zero-bandwidth, three-site model, we show that the quantum critical point and the exceptional point bifurcate, with the critical point for Kondo destruction at $g_c=1$, and the exceptional coupling being $g_{\scriptscriptstyle{EP}} > 1$ for all $U\neq 0$ and $λ\geq 0; λ\neq U/2$. On the line $λ=U/2$, the critical point and the EP again coincide at $g_c=g_{\scriptscriptstyle{EP}}=1$. The full model with finite bandwidth leads is investigated through the slave-boson approach, using which we show that, in the strong coupling regime, $λ$ and interactions co-operate in strongly reducing the critical point associated with Kondo destruction, below the $λ=0$ value.
description: 15 pages, 11 figures, 1 table