cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Critical nuclear charge and shape resonances for the two-electron systems
Creators: name: Yan, Zong-Chao
name: Ho, Yew Kam
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The hydrogen negative ion H$^-$ is the simplest two-electron system that exists in nature. This system is not only important in astrophysics but it also serves as an ideal ground to study electron-electron correlations. The peculiar balance of the correlations between the two electrons with the interaction of electron-nucleus in H$^-$ makes this system to have only two bound states, one being the ground state $1s^2\,^{1}\!S^e$ and the other the doubly-excited metastable state $2p^2\,^{3}\!P^e$ embedded below the hydrogen $n=2$ threshold. Here we report a calculation for the $2p^2\,^{3}\!P^e$ state of H$^-$ that yields the energy eigenvalue $E=-0.125\,355\,451\,242\,864\,058\,376\,012\,313\,25(2)$, in atomic units. Our result substantially improves the best available result by 16 orders of magnitude. We further study the critical nuclear charge $Z_{\rm cr}$, the minimum value of nuclear charge $Z$ that is required to bind a nucleus and two electrons. Our determination of $Z_{\rm cr}$ for the $2p^2\,^{3}\!P^e$ state of two-electron systems is $Z_{\rm cr}=0.994\,781\,292\,240\,366\,246\,3(1)$, corresponding to $1/Z_{\rm cr}= 1.005\,246\,085\,546\,985\,509\,4(1)$, which improves the best published value of $Z_{\rm cr}$ by about 10 orders of magnitude. We further investigate in a definitive way the unexplored regime of $Z < Z_{\rm cr}$ using the method of complex scaling and establish precise shape resonance poles for the state of $2p^2\,^{3}\!P^e$ in the complex energy plane.
Egyptomania and Exoticism in Britain and France:  Western Hegemony and Cultural Appropriation
Creators: name: Marvin, Jenna
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In Egypt's sandy silence, all alone,
      Stands a gigantic Leg, which far off throws
      The only shadow that the Desert knows:—
    "I am great OZYMANDIAS," saith the stone,
      "The King of Kings; this mighty City shows
    "The wonders of my hand."— The City's gone,—
      Nought but the Leg remaining to disclose
    The site of this forgotten Babylon.
- Horace Smith, Ozymandias, 1818
Horace Smith was wrong; Egypt is far from a forgotten Babylon. Egypt has enthralled artists, writers, travellers, and dreamers for thousands of years. The ancient remains of this great civilization have been a constant source of inspiration for great works of Western art since classical antiquity. The golden age of this so-called Egyptomania blossomed in the nineteenth century after Napoleon’s invasion of Egypt in 1798. In the aftermath of this infamous expedition, the West was flooded with ancient Egyptian artifacts, depictions of military campaigns, as well as illustrations of modern and ancient daily life. Egypt would remain a powerful source of artistic inspiration for France throughout the nineteenth century, but Great Britain was also especially captivated by Egypt’s illustrious history. This thesis will examine how France and Britain used Egypt, ancient and modern, to different ends in the nineteenth century, through painting, engraving and photography. The Egyptian Orientalist was both a “rescuer” and a pious hero, breathing new life into Egypt’s glorious past.
Quantum gate learning in engineered qubit networks: Toffoli gate with always-on interactions
Creators: name: Banchi, Leonardo
name: Pancotti, Nicola
name: Bose, Sougato
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We put forward a strategy to encode a quantum operation into the unmodulated dynamics of a quantum network without the need of external control pulses, measurements or active feedback. Our optimization scheme, inspired by supervised machine learning, consists in engineering the pairwise couplings between the network qubits so that the target quantum operation is encoded in the natural reduced dynamics of a network section. The efficacy of the proposed scheme is demonstrated by the finding of uncontrolled four-qubit networks that implement either the Toffoli gate, the Fredkin gate, or remote logic operations. The proposed Toffoli gate is stable against imperfections, has a high-fidelity for fault tolerant quantum computation, and is fast, being based on the non-equilibrium dynamics.
description: 8 pages, 3 figures
$\mathcal{N}=2$ Supersymmetric Janus Solutions and Flows: From Gauged Supergravity to M Theory
Creators: name: Pilch, Krzysztof
name: Tyukov, Alexander
name: Warner, Nicholas P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate a family of SU(3)$\times$U(1)$\times$U(1)-invariant holographic flows and Janus solutions obtained from gauged $\mathcal{N}=8$ supergravity in four dimensions. We give complete details of how to use the uplift formulae to obtain the corresponding solutions in M theory. While the flow solutions appear to be singular from the four-dimensional perspective, we find that the eleven-dimensional solutions are much better behaved and give rise to interesting new classes of compactification geometries that are smooth, up to orbifolds, in the infra-red limit. Our solutions involve new phases in which M2 branes polarize partially or even completely into M5 branes. We derive the eleven-dimensional supersymmetries and show that the eleven-dimensional equations of motion and BPS equations are indeed satisfied as a consequence of their four-dimensional counterparts. Apart from elucidating a whole new class of eleven-dimensional Janus and flow solutions, our work provides extensive and highly non-trivial tests of the recently-derived uplift formulae.
description: 57 pages, 4 figures
Implementing research assessment reforms: Tales from the frontline
Creators: name: Pölönen, Janne
name: Rushforth, Alex
name: de Rijcke, Sarah
name: Niemi, Laura
name: Larsen, Birger
name: Di Donato, Francesca
Publisher: name: Zenodo
Year: 2023
Subjects: Research assessment

description: The publication of the European Agreement on Reforming Research Assessment (ARRA) in July 2022 is the latest, perhaps most high profile, attempt to date to steer research systems towards reform of how individuals, proposals and organizations are recognized and rewarded. While calls for reform are internationally-oriented in scope, not all countries, regions and organizations have moved with equal speed or enthusiasm to enact this agenda and there are uncertainties about what such change processes entail. This special session focuses on implementation of reforms within four ‘early adopter’ institutions from the Netherlands and Finland – where a national reform program exists – as well as Denmark and Italy. Speakers in the session have been involved in implementing reforms locally within their own research performing organizations (RPO). We will hear about the process they have gone through, opportunities and frictions they encountered and lessons learnt about resources and infrastructure needed to support such efforts. Being among the first movers in this space, their insights will provide valuable points for discussion, debate and learning for institutions and members of the STI community to engage with ARRA. The hybrid session was chaired by Janne Pölönen (Federation of Finnish Learned Societies) and Alex Rushforth (Leiden University), with a short introduction and Q&A discussion with the audience. Speakers included Sarah de Rijcke (Leiden University), Laura Niemi (University of Turku), Birger Larsen (University of Aalborg) and Francesca di Donato (National Research Council of Italy).
Who Gets What? Factors Determining Pentagon's Militarization of Local Law Enforcement Agencies
Creators: name: Rue, Daniel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: In response to questions raised during the Ferguson, MO protests of 2014, this paper explores the relationship between economic, political, criminal, and socio-demographic factors and the amount of surplus military equipment that U.S. counties received through the Pentagon’s Excess Property Program (1033 Program) from 2006 - 2014. The results indicate that the 1033 Program has expanded and changed significantly over this period. Population had the most consistent and significant positive effect on the likelihood of receiving equipment and the amount of equipment received. The data also supports results found in previous literature that areas with relatively large minority populations received less gear than other areas. Areas with smaller police budgets per arrest received less equipment than other areas. In the latter half of the period, the estimated coefficient on the percent of Republican voters became positive and significant, indicating that areas with proportionally more Republican voters were more likely to receive gear and to receive a larger amount of gear than other counties. Lastly, the results do not find a significant relationship between receiving a large amount of surplus gear and a change in crime rates over this period.
Correlated Diffuse X-ray Scattering from Periodically Nano-Structured Surfaces
Creators: name: Soltwisch, Victor
name: Haase, Anton
name: Wernecke, Jan
name: Probst, Juergen
name: Schoengen, Max
name: Burger, Sven
name: Krumrey, Michael
name: Scholze, Frank
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Laterally periodic nanostructures were investigated with grazing incidence small angle X-ray scattering. To support an improved reconstruction of nanostructured surface geometries, we investigated the origin of the contributions to the diffuse scattering pattern which is correlated to the surface roughness. Resonant diffuse scattering leads to a palm-like structure of intensity sheets. Dynamic scattering generates the so-called Yoneda band caused by a resonant scatter enhancement at the critical angle of total reflection and higher-order Yoneda bands originating from a subsequent diffraction of the Yoneda enhanced scattering at the grating. Our explanations are supported by modelling using a solver for the time-harmonic Maxwell's equations based on the finite-element method.
Thermalization after photoexcitation from the perspective of optical spectroscopy
Creators: name: Kogoj, J.
name: Vidmar, L.
name: Mierzejewski, M.
name: Trugman, S. A.
name: Bonca, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the thermalization of a photoexcited charge carrier coupled to a single branch of quantum phonons within the Holstein model. To this end, we calculate the far-from-equilibrium time evolution of a pure many-body state and compare it with predictions of the thermal Gibbs ensemble. We show that at strong enough carrier excitation, the nonequilibrium system evolves towards a thermal steady state. Our analysis is based on two classes of observables. First, the occupations of fermionic momenta, which are the eigenvalues of the one-particle density matrix, match in the steady state the values in the corresponding Gibbs ensemble. This indicates thermalization of static fermionic correlations on the entire lattice. Second, the dynamic current-current correlations, including the time-resolved optical conductivity, also take the form of their thermal counterparts. Remarkably, both static and dynamic fermionic correlations thermalize with identical temperatures. Our results suggest that the subsequent relaxation processes, observed in time-resolved ultrafast spectroscopy, may be efficiently described by applying quasithermal approaches, e.g., multi-temperature models.
A Scaling Phenomenon in Shannon Information Uncertainty Difference of fragments in Heavy-ion Collisions
Creators: name: Ma, Chun-Wang
name: Song, Yi-Dan
name: Qiao, Chun-Yuan
name: Wang, Shan-Shan
name: Wei, Hui-Ling
name: Ma, Yu-Gang
name: Cao, Xi-Guang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Shannon information-entropy uncertainty (in brief as "information uncertainty") is used to analyze the fragments in the measured 140$A$ MeV $^{40, 48}$Ca + $^{9}$Be and $^{58, 64}$Ni + $^{9}$Be reactions. A scaling phenomenon is found in the information-uncertainty difference of fragments between the reactions. The scaling phenomenon is explained in a manner of canonical ensemble theory, and is reproduced in the simulated reactions by the antisymmetric molecular dynamics (AMD) and AMD + GEMINI models. The probes based on information uncertainty, requiring no equilibrium state of reaction, can be used in the non-equilibrium system, and bridge the results of the static thermodynamics models and the evolving dynamical transport models.
description: 11 pages, 7 figures
LIBER, UNESCO and LA Referencia Webinar - Open Science Monitoring in Europe
Creators: name: Persic, Ana
name: Rodrigues, Eloy
name: Bracco, Laëtitia
name: Niinimäki, Sami
name: Roche, Julien
Publisher: name: Zenodo
Year: 2023
Subjects: open science
monitoring
UNESCO
Europe

description: On 3 October 2023 LIBER, UNESCO and LA Referencia joined forces for a webinar outlining the the Open Science monitoring methods and tools currently developed in Europe. The event introduced several examples of inclusive monitoring of Open Science, in line with the 2021 UNESCO Recommendation on Open Science. Programme Introduction and welcoming words
 Andrea Mora, LA Referencia President and Julien Roche, LIBER President UNESCO Monitoring Framework
 Ana Persic, Programme Specialist for Science Technology and Innovation Policies and Open Science at the UNESCO Headquarters OpenAIRE : State-of-the-Art OS monitoring method(s) and tools; OpenAIRE Open Science monitor
 Eloy Rodrigues, Director of the University of Minho Libraries in Portugal French Focus: National OS monitoring
 Laëtitia Bracco, Project manager of the French Open Science Data and Software Code Monitor, on behalf of Marin Dacos, National Open Science Coordinator at the French Ministry of Higher Education and Research in France Finnish Focus: National OS monitoring
 Sami Niinimäki, Counsellor of Education, Ministry of Education and Culture in Finland  Q&A
 Facilitated by Cecile Swiatek Cassafieres, LIBER Board member and University Librarian/ Library Director at Université Paris Nanterre in France  Concluding remarks
 Julien Roche, LIBER President This upload includes all presentation slides used by speakers at the webinar, including the opening and closing remarks of LIBER President, Julien Roche. Webinar recording (Español): https://www.youtube.com/watch?v=1h4JLbfHxEs Webinar recording (English): https://youtu.be/5M6S-7u4Tq4
An Integrated Review of Interprofessional Rounds and Their Implications
Creators: name: Catalogne, Francesca
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: This paper aims to explore what is known on the effects, facilitators and barriers of nurses’ participation in interprofessional patient rounds (IPR) on inpatient hospital units. Implementing IPR is difficult and seen as controversial, but earlier studies of IPR had shown positive quality of care effects, decreased medical errors, and improved patient safety from communication problems. We wanted to know the state of science in the last five years since we would expect broader implementation. The guidelines of Preferred Reporting Items for Systematic reviews and Meta Analyses directed this integrated review. We conducted a systematic search in the databases Current Index of Nursing and Allied Health Literature, PubMed, PsychInfo, and Embase. Articles were included if they were: (a) a research study published in English; (b) in a peer-reviewed journal; (c) published between 2013 - 2018; (d) the setting studied was an inpatient hospital unit; and, (e) the study involved a reasonable number of nurses per other providers studied. After reviewing 629 titles, abstracts, and articles, a final sample of n = 14 qualitative research studies were used to synthesize findings (See Figure 1 PRISMA). IPR showed positive effects for the hospital units studied, including: (a) improving nurses’ job satisfaction; (b) improving working relationships between physicians and nurses; and, (c) improving patient-and family centered care.  Yet, the study designs used have also constrained the generalizability. More studies should implement research designs that account for the various types of biases noted. The findings give preliminary data that could be useful to nursing administrators for improving nurse turnover, engaging nurses in patient care-planning or family advocacy, which could ultimately improve patient and family-centered care.
A Tie Dye Onion: STORIES
Creators: name: Leitch, Elizabeth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Contains the following stories: 1. By the River; 2. Secrets the People in this Room Know; 3. The Grave Keepers of the Mattaponi; 4-6. The Graham’s Stories: What Will We Do When We Are Old?, Things I Wanted as a Child, The Pros and Cons of Being an Alcoholic; 7. Rind; 8. Under the Cranberry Bog; 9. Switzerland; 10. Malcolm; 11. Glass in a Silver Coat; 12. Vertebra
title: Inside-out: mapping an understanding of undergraduate study abroad programs
Creators: name: Aylmer, Juliet R
Publisher: name: University of Southern Queensland
Year: 2018
Subjects: subject: 130103 Higher Education

description: The potential benefits of undergraduate students studying abroad as part of a degree program have long been touted as central to the social and strategic goals of governments and more recently to an increasing number of universities in the three national case-sites selected for this project – Australia, the United Kingdom and the United States. Yet, despite the rhetoric, research consistently indicates each year that only a small percentage of the undergraduate student populations in each of the three national case-sites participate in study abroad programs. Given that ‘study abroad’ is often considered a central aspect of the “internationalisation” model projected by many universities, the thesis’ conceptual framework considers the provision and delivery of study abroad programs as a form of experiential learning (Dewey, 1963) focused on the development of cross-cultural and intercultural understanding. In particular, the thesis suggests that to meet this goal, study abroad programs operate according to institutional social/cultural, political, academic and economic rationales (de Wit, 1995; Knight & de Wit, 1997, 1999). Why study abroad programs attract such low student participation rates in light of these influential factors forms the focus of the inquiry contained herein. This thesis presents a survey of successive government-assisted campaigns, field/academic literature and an ethnography of the experiences of study abroad professionals selected from universities in the three national case-sites who manage or operate study abroad programs. Applying a qualitative interpretivist methodology, the experiences reflect observations from the researcher’s professional field notes and narratives derived from semi-structured interviews. Extant research largely explores study abroad programs from the perspectives of senior administrative and/or academic staff or students. Therefore this thesis is the first to add comparative practitioner-based knowledge to the literature and aims to introduce cohesive collaborative methods to increase study abroad participation rates in and beyond the three national case-sites.
Invisible Man's Daughter
Creators: name: Bullock, Lauren
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Contents: Cento Against Invisibility; House Cats; The Lottery; Erasure Poem; If you should ever find yourself sitting in the front of a class on racial diversity, ignorance eating its way through the roof of your mouth until it splatters acid across your tastebuds; Phan Thị Kim Phúc; curiousity; Avocado; Note’s on the Rapist’s Nose; Pork Chops; If Schrödinger Moves In; Contrast; Vagina Dialogues; Ace for Short; Prayer for a Dominatrix; The Curse; After the Murder; Separation; Retelling; Reboot; On Asking My Mother How She Feels Vietnamese; Sehnsucht; Batman the Father; Not Supposed to Happen; Conversation in Transit; Whitewash; Comic Book Death; Five Portraits of Karōshi; Instructions on Reversing Paralysis in an Unwilling Tongue
Luminosity functions in the CLASH-VLT cluster MACS J1206.2-0847: the importance of tidal interactions
Creators: name: Mercurio, A.
name: Annunziatella, M.
name: Biviano, A.
name: Nonino, M.
name: Rosati, P.
name: Balestra, I.
name: Brescia, M.
name: Girardi, M.
name: Gobat, R.
name: Grillo, C.
name: Lombardi, M.
name: Sartoris, B.
name: team, the CLASH-VLT
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the optical luminosity functions (LFs) of galaxies for the CLASH-VLT cluster MACS J1206.2-0847 at z=0.439, based on HST and SUBARU data, including ~600 spectroscopically confirmed member galaxies. The LFs on the wide SUBARU FoV are well described by a single Schechter function down to M~M*+3, whereas this fit is poor for HST data, due to a faint-end upturn visible down M~M*+7, suggesting a bimodal behaviour. We also investigate the effect of local environment by deriving the LFs in four different regions, according to the distance from the centre, finding an increase in the faint-end slope going from the core to the outer rings. Our results confirm and extend our previous findings on the analysis of mass functions, which showed that the galaxies with stellar mass below 10^10.5, M_sun have been significantly affected by tidal interaction effects, thus contributing to the intra cluster light.
description: 5 pages, 2 figures, Proceeding of the talk at the conference "The Universe of Digital Sky Surveys" held in Naples (Italy) on 25-28 November 2014
Timing of Oncogenesis as a Potential Determinant of Radiation Sensitivity in a Mouse Model of Medulloblastoma
Creators: name: Wu, Jaclyn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Medulloblastoma is a malignant cerebellar tumor that is commonly treated with the use of radiation treatment. While most tumors are sensitive to treatment, approximately 20% of medulloblastoma patients experience recurrence and die from their tumors. The cause of treatment failure in these patients is unknown. The purpose of my research was to examine if the developmental timing of the beginning of tumor formation alters the effectiveness of radiation therapy. I used a mouse model of medulloblastoma in which an oncogene called SmoM2 can be activated at specific points during in utero brain development. SmoM2 is a mutated, constitutively active receptor in the Sonic hedgehog pathway and mice with activated SmoM2 develop medulloblastoma in the first week after they are born. I quantified the survival time of SmoM2 mice using Kaplan-Meier analysis, and analyzed the tumors using immunohistochemistry, Western blot, and microarray gene expression studies. My results show that the radiation sensitivity of SmoM2-driven tumors depends on when the SmoM2 gene is activated during development. Mice in which the SmoM2 gene was activated earlier in development exhibited poor survival, persistent tumors, and more heterogeneous gene expression after radiation, which may contribute to an enhanced ability to withstand radiation-induced damage. Understanding the attributes that lead to therapy resistance may allow for identification of resistant tumors pre-treatment, aiding in more effective clinical outcomes.
Cohomology groups of sections of homogeneous line bundles over a toroidal group
Creators: name: Abe, Yukitaka
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We completely determine cohomology groups of sections of homogeneous line bundles over a toroidal group.
Half-metallic Dirac cone in zigzag-graphene-nanoribbon/graphene
Creators: name: Chen, M. X.
name: Weinert, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The Dirac electrons of graphene, an intrinsic zero gap semiconductor, uniquely carry spin and pseudospin that give rise to many fascinating electronic and transport properties. While isolated zigzag graphene nanoribbons are antiferromagnetic semiconductors, we show by means of first-principles and tight-binding calculations that zigzag graphene nanoribbons supported on graphene are half-metallic as a result of spin- and pseudospin-symmetry breaking. In particular, half-metallic Dirac cones are formed at K (K') near the Fermi level. The present results demonstrate that the unique combination of spin and pseudospin in zigzag graphene nanoribbons may be used to manipulate the electronic properties of graphene, and may have practical implications for potential graphene-based nanoelectronic applications.
description: 6 pages, 8 figures, minor changes
Defining the Political Landscape: The Pursuit of Lumbee Recognition
Creators: name: Barnes, Chelsea
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: This project aims to investigate the ways in which the Lumbee Tribe of North Carolina has restructured its own political organization in response to internal factors such as counteracting poverty, betterment of the educational system, and healthcare. The tribe’s response to these internal desires have had a direct impact on the tribe’s standing in regards to the Federal Acknowledgment Process. By responding to internal needs, the tribe is drawn closer to federal recognition.  Externally, federal recognition also impacts the formation of tribal government. Although the tribe is not formally eligible to participate in the Federal Acknowledgement Process, it has made significant attempts at fulfilling each of the requirements established by the Bureau of Indian Affairs in ways that are familiar to the general population and in hopes of establishing a “government-to-government” relationship with the federal government. These efforts have helped to shape the tribal government.
While this investigation affects the over 60,000 members of the Lumbee tribe, it also speaks to larger issues related to tribal government formation more generally, federal recognition policy, and the process that tribes and the federal government use to implement that policy. For many years the equitability of this process has been debated, and the Lumbee tribal case can serve as an example of why it should be (and currently is being) re-evaluated.  Although many Native people would surely argue the importance of acknowledgement from the government, federal recognition can give larger insight into the political process in general and how administrative processes develop within the United States governmental system.
In the following sections, I first provide a general topical background, followed by a review of the previous literature as it relates to this study. Then, I present a theory explaining how the Lumbee have restructured their political organization over time. Afterward, I describe the methods employed in this study before presenting the results of my analysis. Finally, I conclude with remarks on these results and comment on the prospects for future research provided by this thesis.
Rotation periods and astrometric motions of the Luhman 16AB brown dwarfs by high-resolution lucky-imaging monitoring
Creators: name: Mancini, L.
name: Giacobbe, P.
name: Littlefair, S. P.
name: Southworth, J.
name: Bozza, V.
name: Damasso, M.
name: Dominik, M.
name: Hundertmark, M.
name: Jorgensen, U. G.
name: Juncher, D.
name: Popovas, A.
name: Rabus, M.
name: Rahvar, S.
name: Schmidt, R. W.
name: Skottfelt, J.
name: Snodgrass, C.
name: Sozzetti, A.
name: Alsubai, K.
name: Bramich, D. M.
name: Novati, S. Calchi
name: Ciceri, S.
name: D'Ago, G.
name: Jaimes, R. Figuera
name: Galianni, P.
name: Gu, S. -H.
name: Harpsoe, K.
name: Haugbolle, T.
name: Henning, Th.
name: Hinse, T. C.
name: Kains, N.
name: Korhonen, H.
name: Scarpetta, G.
name: Starkey, D.
name: Surdej, J.
name: Wang, X. -B.
name: Wertz, O.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Photometric monitoring of the variability of brown dwarfs can provide useful information about the structure of clouds in their cold atmospheres. The brown-dwarf binary system Luhman 16AB is an interesting target for such a study, as its components stand at the L/T transition and show high levels of variability. Luhman 16AB is also the third closest system to the Solar system, allowing precise astrometric investigations with ground-based facilities. Aims. The aim of the work is to estimate the rotation period and study the astrometric motion of both components. Methods. We have monitored Luhman 16AB over a period of two years with the lucky-imaging camera mounted on the Danish 1.54m telescope at La Silla, through a special i+z long-pass filter, which allowed us to clearly resolve the two brown dwarfs into single objects. An intense monitoring of the target was also performed over 16 nights, in which we observed a peak-to-peak variability of 0.20 \pm 0.02 mag and 0.34 \pm 0.02 mag for Luhman 16A and 16B, respectively. Results. We used the 16-night time-series data to estimate the rotation period of the two components. We found that Luhman 16B rotates with a period of 5.1 \pm 0.1 hr, in very good agreement with previous measurements. For Luhman 16A, we report that it rotates slower than its companion and, even though we were not able to get a robust determination, our data indicate a rotation period of roughly 8 hr. This implies that the rotation axes of the two components are well aligned and suggests a scenario in which the two objects underwent the same accretion process. The 2-year complete dataset was used to study the astrometric motion of Luhman 16AB. We predict a motion of the system that is not consistent with a previous estimate based on two months of monitoring, but cannot confirm or refute the presence of additional planetary-mass bodies in the system.
description: 10 pages, 7 figures, accepted for publication by Astronomy & Astrophysics
The Use of Music Therapy in the Pediatric Oncology Setting
Creators: name: Defreitas, Nicole
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: This paper explores the use of music therapy in the pediatric oncology setting. Music has been used as a form of therapy in multiple fields of medicine and has been found to be beneficial for patients and families. Music therapy comes in many forms, ranging from simple music listening to comprehensive song creation. The pediatric oncology patient experience is full of challenges related to treatment and setting. This study aims to compare and contrast different forms of music therapy used in this specific setting, study the subsequent outcome measures, and inform future research in this topic.
title: Scrum project framework: exploring Agile project management in a non-ITC organisation
Creators: name: Forbes, Ross
Publisher: name: University of Southern Queensland
Year: 2018
Subjects: subject: 150312 Organisational Planning and Management

description: This study used the Agile modality Scrum to investigate practitioners’ perceptions of the Scrum project framework and evaluated the frequency, mode and tools of communication in successful projects using the Scrum framework, whilst identifying any problems arising from the introduction of Scrum. A review of the literature highlighted the effectiveness of Scrum in studies that applied Agile project management in an IT environment. The literature identified that small cross-functional teams, frequent communication, quality communication, clear project goals and project transparency are effective for project management success. This research investigated five projects, as a case study, using Scrum as the project management framework, within small cross-functional teams in the non-ITC environment. This case study analysed the post-Scrum project team retrospective meetings to identify common themes in the participants feedback relating to the effectiveness of Scrum as a project management framework. Common themes identified were communication tools, project clarity, participant accountability and project momentum. These identified themes were used to create a survey artefact to investigate the legitimacy of the identified themes. The legitimacy of the retrospective common themes was confirmed by the survey responses through qualitative and supporting quantitative analysis, indicating Scrum as an effective project management framework outside the software development arena. Participant responses indicated the efficacy of daily communication frequency through the stand-up meetings, and project clarity and individual accountability through the use of Scrum board. Findings of the survey indicated the daily stand-up meeting was most effective communication mode and tool to facilitate interaction and exchange of information during the projects. The study identified a problem of perceived harassment, relating to the level of accountability/transparency of the Scrum process.
Combined analysis of charm-quark fragmentation-fraction measurements
Creators: name: Lisovyi, Mykhailo
name: Verbytskyi, Andrii
name: Zenaiev, Oleksandr
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A summary of measurements of the fragmentation of charm quarks into a specific hadron is given. Measurements performed in photoproduction and deep inelastic scattering in $e^{\pm}p$, $pp$ and $e^+e^-$ collisions are compared, using up-to-date branching ratios. Within uncertainties, all measurements agree, supporting the hypothesis that fragmentation is independent of the specific production process. Averages of the fragmentation fractions over all measurements are presented. The average has significantly reduced uncertainties compared to individual measurements.
description: 29 pages, 2 figures, 16 tables
title: Eine neue Perspektive auf Flucht und Männlichkeit
Creators: name: Schneider, Matthias
Publisher: name: DuEPublico
Year: 2023

description: In öffentlichen Diskursen werden geflüchtete Männer häufig als patriarchale Gewalttäter und als Gefahr für die Allgemeinheit stereotypisiert. Von wissenschaftlicher Seite wurden diese Vorurteile schon vor einiger Zeit ausgeräumt, gleichzeitig gibt es auch hier Verkürzungen. So wird das Leben von geflüchteten Männern meist auf das Aufnahmeland reduziert und Männlichkeit im Singular gedacht. Mit den Ergebnissen meiner Studie über die Biographien von aus Eritrea geflüchteten Männern lässt sich diese Perspektive erweitern.
description: blog interdisziplinäre geschlechterforschung
A Digital Insurgency? Mapping the Transformation Continuum
Creators: name: Kincaid, Jessica Averill
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: In order to evaluate the digital humanities’ effects on the traditional academy, we must recognize the dichotomies and nuances involved in both the rhetoric of digital humanists, and the effects of digital methods within an academic context. The question, then, is not one of overarching success or failure, but of examining the field in terms of a transformation continuum. Certainly aspects of digital humanities have shaped the literary experience in innovative ways that challenge traditional academic values; however, these methods and tools often lend themselves to a simple amplification of traditional humanities pursuits that largely undermine the more transformative rhetoric of the digital humanities.
In fact, imagining such a continuum reveals a more complex—and accurate—picture of the academy and the digital humanities. When we separate digital effects from the digital humanities’ utopian rhetoric, we discover the nuances that render a study of the field as a whole meaningful. Upon first glance, aspects of the digital humanities like geospatial representations of texts, data mining, open peer review, and changing views of scholarship may appear revolutionary, but a closer look often reveals barriers to transformation. This contrasting framework of rhetoric and practice offers a critical look at individual aspects of the digital humanities and their place on the transformation continuum. Beginning with micro-level digital tools present in university classrooms—namely geospatial data and text mining—and progressing towards the overarching practices that characterize academia such as publishing tactics and definitions of scholarship, we may more precisely contextualize digital humanities’ revolutionary potential. The emerging field’s purpose, then, becomes one of reconciling the digital age with serious humanistic inquiry in a way that facilitates a meaningful encounter between scholars, scholarly materials, and the scholarly environment within which they interact. These intersecting forces may render the digital humanities difficult to define—possessing unique qualities that harbor the potential to reform traditional structures, but oftentimes reinstantiating familiar values and practices—which renders the notion of a continuum so valuable. Observing the often conflicting relationship between digital humanists’ idealistic rhetoric and the practical effects of digital tools and methods serves as a means of materializing this transformation continuum in an effort to better understand the digital humanities’ role in the literary process and academia as a whole.
A Search for Correlations between Gamma-Ray Burst Variability and Afterglow Onset
Creators: name: Yost, S. A.
name: Moore, T. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We compared the time (or time limit) of onset for optical afterglow emission to the gamma-ray variability V in 76 GRBs with redshifts. In the subset (25 cases) with the rise evident in the data, we fit the shape of the onset peak as well and compared the rising and decaying indices to V. We did not find any evidence for any patterns between these properties and there is no statistical support for any correlations. This indicates a lack of connection between irregularities of the prompt gamma-ray emission and the establishment of the afterglow phase. In the ordinary prompt internal shocks interpretation, this would indicate a lack of relationship between V and the bulk Lorentz factor of the event.
description: 14 pages including 8 figures, MNRAS accepted
LunAero: Automated "Smart" Hardware for Recording Video of Nocturnal Migration
Creators: name: Honeycutt, Wesley
name: Heaston, Alyse
name: Kelly, Jeff
name: Bridge, Eli
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: aeroecology
subject: astronomy
subject: biology
subject: bird
subject: bird watching
subject: ecology
subject: hardware
subject: HardwareX
subject: LunAero
subject: lunar
subject: migrant
subject: migration
subject: moon
subject: moon watching
subject: Numpy
subject: OpenCV
subject: Open Hardware
subject: ornithology
subject: Python
subject: robotics
subject: video

description: Supplemental information for the LunAero project, a proof-of-concept prototype that can serve as a platform for citizen scientists interested in observing nocturnal bird migration.
How oral pathogenic bacteria stimulate Epstein-Barr virus (EBV) reactivation and commensal bacteria suppress EBV reactivation
Creators: name: Batts, Lawson
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Objective: Epstein-Barr virus (EBV) is associated with human oral and gastric cancers. Lytic reactivation from latency contributes to EBV spread. Reactivation is dependent on the initial expression of two immediate-early genes, BRLF1 and BZLF1. Increased oral EBV load correlates with periodontitis severity suggesting bacterial pathogens contribute to reactivation. This study sought to develop a stable cell line containing the luciferase gene under the transcriptional control of the promoters for the EBV immediately-early genes, BRLF1 and BZLF1, to study bacterial products involved in lytic reactivation.  Methods: The latently-infected EBV+ human gastric carcinoma cell line, AGS-EBV, was treated with bacterial spent media (BSM) from anaerobic cultures of F. nucleatum (Fn) or P. gingivalis (Pg). The oral commensal bacteria, S. sanguinis (Ss), was used as a negative control. Lytic reactivation was determined by immunoblot to detect immediate-early viral lytic proteins. The promoters of the EBV immediate-early genes, were PCR-amplified and cloned into the reporter plasmid, pGL2-Basic to produce pEBVRpLuc and pEBVZpluc, respectively. EBV promoter/luciferase cassettes were cloned into the lentiviral vector, pLKO.1. A promoterless luciferase was constructed as a negative control.Results: Treatment of latently-infected EBV cells treated with Fn or Pg BSM resulted in expression of the immediate-early genes as determined by western blot analysis. No increase in viral proteins was seen in Ss-treated cells. PCR products were obtained using primers specific for the promoters of EBV BRLF1 and BZLF1. Plasmids were generated and restriction digest analysis confirmed the presence of each viral promoter/luciferase cassette in the lentiviral vector.Conclusion: BSM-induced EBV reactivation suggested that transcription occurred at the viral immediate-early lytic genes. Stable cell lines containing viral promoter/luciferase cassettes will be useful in elucidating mechanisms of viral reactivation by oral pathogenic bacteria. This is an important connection to show that improving oral hygiene can limit EBV reactivation and improve systemic health.
STATA Do-files to the paper "Work hour mismatches and sickness absence and the moderating role of human resource practices: Evidence from Germany"
Creators: name: Reich, Ricarda
Publisher: name: Universität Hamburg
Year: 2023
Subjects: SOEP
Multilevel analyses
work hour mismatches
sickness absence
HR practices
Germany

description: Stata do-files for the project "Work hour mismatches and sickness absence and the moderating role of human resource practices: Evidence
 from Germany"
Exploring Lovelock theory moduli space for Schroedinger solutions
Creators: name: Jatkar, Dileep P.
name: Kundu, Nilay
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We look for Schroedinger solutions in Lovelock gravity in $D > 4$. We span the entire parameter space and determine parametric relations under which the Schroedinger solution exists. We find that in arbitrary dimensions pure Lovelock theories have Schroedinger solutions of arbitrary radius, on a co-dimension one locus in the Lovelock parameter space. This co-dimension one locus contains the subspace over which the Lovelock gravity can be written in the Chern-Simons form. Schroedinger solutions do not exist outside this locus and on this locus they exist for arbitrary dynamical exponent z. This freedom in z is due to the degeneracy in the configuration space. We show that this degeneracy survives certain deformation away from the Lovelock moduli space.
description: 22 pages, Title changed, contents revised with focus on Schroedinger solutions, extra references added, to match with the version published in Nucl. Phys. B
Software
Creators: name: Honeycutt, Wesley
name: Heaston, Alyse
name: Kelly, Jeff
name: Bridge, Eli
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: aeroecology
subject: astronomy
subject: biology
subject: bird
subject: bird watching
subject: ecology
subject: hardware
subject: HardwareX
subject: LunAero
subject: lunar
subject: migrant
subject: migration
subject: moon
subject: moon watching
subject: Numpy
subject: OpenCV
subject: Open Hardware
subject: ornithology
subject: Python
subject: robotics
subject: video

description: This repository contains the software required to operate the LunAero device as published in HardwareX
Scaling of liquid-drop impact craters in wet granular media
Creators: name: Zhang, Qianyun
name: Gao, Ming
name: Zhao, Runchen
name: Cheng, Xiang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Combining high-speed photography with laser profilometry, we study the dynamics and the morphology of liquid-drop impact cratering in wet granular media---a ubiquitous phenomenon relevant to many important geological, agricultural, and industrial processes. By systematically investigating important variables such as impact energy, the size of impinging drops and the degree of liquid saturation in granular beds, we uncover a novel scaling for the size of impact craters. We show that this scaling can be explained by considering the balance between the inertia of impinging drops and the strength of impacted surface. Such a theoretical understanding confirms that the unique energy partition originally proposed for liquid-drop impact cratering in dry granular media also applies for impact cratering in wet granular media. Moreover, we demonstrate that compressive stresses, instead of shear stresses, control granular impact cratering. Our study enriches the picture of generic granular impact cratering and sheds light on the familiar phenomena of raindrop impacts in granular media.
description: 8 pages, 8 figures