cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling clustered non-stationary Poisson processes for stochastic simulation inputs
Creators: name: Shams, Issac
name: Ajorlou, Saeede
name: Yang, Kai
Publisher: name: arXiv
Year: 2014
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: I.6.4; I.6.6; I.6.8
subject: 90B22, 65C05

description: A validated simulation model primarily requires performing an appropriate input analysis mainly by determining the behavior of real-world processes using probability distributions. In many practical cases, probability distributions of the random inputs vary over time in such a way that the functional forms of the distributions and/or their parameters depend on time. This paper answers the question whether a sequence of observations from a process follow the same statistical distribution, and if not, where the exact change points are, so that observations within two consecutive change points follow the same distribution. We propose two different methods based on likelihood ratio test and cluster analysis to detect multiple change points when observations follow non-stationary Poisson process with diverse occurrence rates over time. Results from a comprehensive Monte Carlo study indicate satisfactory performance for the proposed methods. A well-known example is also considered to show the application of our findings in real world cases.
description: 29 pages, 2 figures, 4 tables, published in Computers and Industrial Engineering. arXiv admin note: text overlap with arXiv:1402.7112
Probing the metastability of protoneutron star with hyperon in core-collapse supernova
Creators: name: Banik, Sarmistha
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the role of hyperons in the dynamical collapse of a non-rotating massive star to a black hole(BH) using one dimensional general relativistic $GR1D$ code. We follow the dynamical formation and evolution of a protoneutron star (PNS) to a black hole using various progenitor models, adopting a hyperonic equation of state (EoS) generated by Shen et. al. We compare the results with those of nuclear EoS by Shen et. al. and understand the role of strange hyperons in the core collapse supernova. We discuss the neutrino signals that may be used as a probe to core collapse. Further, an exotic EoS can support a much lower maximum mass cold neutron star compared to PNS. In this regard, we also study the metastability of PNS in the presence of hyperon in the long-time evolution of the progenitors, relevant to supernova SN1987A.
Modeling and stabilizability of voltage-actuated piezoelectric beams with magnetic effects
Creators: name: Morris, K. A.
name: Ozer, A. O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35M33, 93C20, 93B52, 70Q05

description: Models for piezoelectric beams and structures with piezoelectric patches generally ignore magnetic effects. This is because the magnetic energy has a relatively small effect on the overall dynamics. Piezoelectric beam models are known to be exactly observable, and can be exponentially stabilized in the energy space by using a mechanical feedback controller. In this paper, a variational approach is used to derive a model for a piezoelectric beam that includes magnetic effects. It is proven that the partial differential equation model is well-posed. Magnetic effects have a strong effect on the stabilizability of the control system. For almost all system parameters the piezoelectric beam can be strongly stabilized, but is not exponentially stabilizable in the energy space. Strong stabilization is achieved using only electrical feedback. Furthermore, using the same electrical feedback, an exponentially stable closed-loop system can be obtained for a set of system parameters of zero Lebesgue measure. These results are compared to those of a beam without magnetic effects.
description: 29 pages, 1 figure, 1 table
title: The How and Why of Mentoring
Creators: name: Stankrauff, Alison H.
name: Sommer, Tom
name: Ganz, Michelle
Publisher: name: Utah State University
Year: 2020

description: Mentoring those in the archival field is critical to the development of any professional, or budding professional archivist. The mentoring relationship is one that has the potential to inform, nurture, encourage those on both sides of the relationship. This article explores that relationship and the frameworks that foster such mentoring programs. Discussed are mentoring to undergraduates, graduate archival program students, peer-to-peer mentoring of archivists at different institutions, as well as mentoring in the tenure process. This article is meant to be at once informative about such programs as well as offering guidance for those wanting to create a similar mentoring program or foster a mentoring relationship.
Optimal Rectangle Packing: An Absolute Placement Approach
Creators: name: Huang, Eric
name: Korf, Richard E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We consider the problem of finding all enclosing rectangles of minimum area that can contain a given set of rectangles without overlap. Our rectangle packer chooses the x-coordinates of all the rectangles before any of the y-coordinates. We then transform the problem into a perfect-packing problem with no empty space by adding additional rectangles. To determine the y-coordinates, we branch on the different rectangles that can be placed in each empty position. Our packer allows us to extend the known solutions for a consecutive-square benchmark from 27 to 32 squares. We also introduce three new benchmarks, avoiding properties that make a benchmark easy, such as rectangles with shared dimensions. Our third benchmark consists of rectangles of increasingly high precision. To pack them efficiently, we limit the rectangles coordinates and the bounding box dimensions to the set of subset sums of the rectangles dimensions. Overall, our algorithms represent the current state-of-the-art for this problem, outperforming other algorithms by orders of magnitude, depending on the benchmark.
title: The Gregory Peck papers: It's Not Just Hollywood
Creators: name: Denk, Clare
Publisher: name: Utah State University
Year: 2020

description: The Gregory Peck papers at the Academy of Motion Picture Arts and Sciences serve as a case study to demonstrate the value of a collection beyond its expected scope. In this case, four examples are used to highlight how the Peck papers move far beyond the confines of Hollywood by encompassing topics including Hawaii on the eve of its statehood, politics, international fan culture, and post-World War II Japan as seen through the lens of an American GI.
Osteological form - SZ17787 from St. Nicholas Church, Oslo
Creators: name: Schiøtz, Sara Georgine Fløien
Publisher: name: figshare
Year: 2022
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: Archaeology

description: Osteological form of the individual SZ17787, possible male aged 28-40 years, from St. Nicholas Church, Oslo. The form is made up of attachments from Buikstra and Ubelaker's Standards from 1994. The age and sex estimates are from the osteological report (Osteologisk analyse av skjelettmaterialet fra Nikolaikirkens kirkegård, NIKU oppdragsrapport 160/2016, by Jensen, Anne Østegaard in 2018) It was used as 'raw data' for my master's thesis 'Paleopathology and Health in Medieval Oslo'
Low temperature ordering in easy-axis $S=1$ kagome and triangular lattice antiferromagnets
Creators: name: Damle, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A brief review is provided of earlier work on the low temperature phases of $S=1$ kagome and triangular lattice antiferromagnets in which there is sufficiently strongly single-ion anisotropy $D$ that dominates over the antiferromagnetic exchange $J$.
description: arXival copy of brief review published in 2007
INSPIRE: INvestigating Stellar Population In RElics IV. The Initial Mass Function slope in relics
Creators: name: Martin-Navarro, I.
name: Spiniello, C.
name: Tortora, C.
name: Coccato, L.
name: D'Ago, G.
name: Ferre-Mateu, A.
name: Pulsoni, C.
name: Hartke, J.
name: Arnaboldi, M.
name: Hunt, L.
name: Napolitano, N. R.
name: Scognamiglio, D.
name: Spavone, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In the last decade, growing evidence has emerged supporting a non-universal stellar Initial Mass Function (IMF) in massive galaxies, with a larger number of dwarf stars with respect to the Milky-Way (bottom-heavy IMF). However, a consensus about the mechanisms that cause IMF variations is yet to be reached. Recently, it has been suggested that stars formed early-on in cosmic time, via a star formation burst, could be characterised by a bottom-heavy IMF. A promising way to confirm this is to use relics, ultra-compact massive galaxies, almost entirely composed by these "pristine" stars. The INSPIRE Project aims at assembling a large sample of confirmed relics, that can serve as laboratory to investigate on the conditions of star formation in the first 1-3 Gyr of the Universe. In this third INSPIRE paper, we build a high signal-to-noise spectrum from five relics and one from five galaxies with similar sizes, masses, and kinematical properties, but characterised by a more extended star formation history (non-relics). Our detailed stellar population analysis suggests a systematically bottom-heavier IMF slope for relics than for non-relics, adding new observational evidence for the non-universality of the IMF at various redshifts and further supporting the above proposed physical scenario.
description: Accepted for publication in MNRAS. 8 pages, 5 figures
CaBaCo$_4$O$_7$ : A ferrimagnetic pyroelectric
Creators: name: Johnson, R. D.
name: Cao, K.
name: Radaelli, P. G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Magneto-electric coupling in pyroelectric CaBaCo$_4$O$_7$ is investigated using ab-intio calculations and Landau theory. The former shows that exchange-striction is strong enough to produce a giant change in electric polarization upon ferrimagnetic ordering, comparable to the experimentally determined value of ~17 mC/m$^2$ . Furthermore, Landau theory demonstrates that magneto-elastic coupling in CaBaCo$_4$O$_7$ is responsible for the strong magneto-electric coupling appearing close to the magnetic phase transition.
The relation between morphology, star formation history, and environment in local universe galaxies
Creators: name: Pérez-Millán, D.
name: Fritz, Jacopo
name: González-Lópezlira, Rosa A.
name: Moretti, Alessia
name: Sodi, Bernardo Cervantes
name: Vulcani, Benedetta
name: Gullieuszik, Marco
name: Bruzual, Gustavo
name: Charlot, Stéphane
name: Bettoni, Daniela
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The observed properties of galaxies are strongly dependent on both their total stellar mass and their morphology. Furthermore, the environment is known to play a strong role in shaping them. The galaxy population in the local universe that is located in virialized clusters is found to be red, poorly star-forming, and mostly composed of early morphological types. Towards a holistic understanding of the mechanisms that drive galaxy evolution, we exploit the spectrophotometric data from the WINGS and OmegaWINGS local galaxy cluster surveys, and study the role of both the local and the large-scale environments. We attempt to disentangle their effects from the intrinsic characteristics of the galaxies, in shaping the star formation activity at fixed morphological type and stellar mass. Using a sample of field galaxies from the same surveys for comparison, we analyse the effects of the environment, embodied by the local density, clustercentric distance, and close neighbours, respectively, on the star formation histories of cluster galaxies. We find that local effects have a more relevant impact on galaxy stellar properties than the large-scale environment, and that morphology needs to be taken into account to pinpoint the mechanisms that are driving the influence of clusters in galaxy evolution.
description: Accepted by MNRAS. 24 pages, 20 figures, including 3 appendices
Revising the properties of low mass eclipsing binary stars using TESS light curves
Creators: name: Jennings, Z.
name: Southworth, J.
name: Maxted, P. F. L.
name: Mancini, L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Precise measurements of stellar parameters are required in order to develop our theoretical understanding of stellar structure. These measurements enable errors and uncertainties to be quantified in theoretical models and constrain the physical interpretation of observed phenomena, such as the inflated radii of low-mass stars. We use newly-available TESS light curves combined with published radial velocity measurements to improve the characterization of 12 low mass eclipsing binaries composed of an M~dwarf accompanied by a brighter F/G star. We present and analyse ground-based simultaneous four-colour photometry for two targets. Our results include the first measurements of the fundamental properties of two of the systems. Light curve and radial velocity information were converted into the physical parameters of each component of the systems using an isochrone fitting method. We also derive the effective temperatures of the M~dwarfs, almost tripling the number of such measurements. The results are discussed in the context of radius inflation. We find that exquisite precision in the age estimation of young objects is required to determine their inflation status. However, all but three of the objects are securely located among the main sequence, demonstrating radius inflation and the necessity to develop our understanding of the complex physical processes governing the evolution of low-mass stars. We investigated the hypothesis that luminosity is unaffected by the inflation problem but the findings were not conclusive.
description: 16 pages, 7 figures
Parameterized Complexity Results for Exact Bayesian Network Structure Learning
Creators: name: Ordyniak, Sebastian
name: Szeider, Stefan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Bayesian network structure learning is the notoriously difficult problem of discovering a Bayesian network that optimally represents a given set of training data. In this paper we study the computational worst-case complexity of exact Bayesian network structure learning under graph theoretic restrictions on the (directed) super-structure. The super-structure is an undirected graph that contains as subgraphs the skeletons of solution networks. We introduce the directed super-structure as a natural generalization of its undirected counterpart. Our results apply to several variants of score-based Bayesian network structure learning where the score of a network decomposes into local scores of its nodes. Results: We show that exact Bayesian network structure learning can be carried out in non-uniform polynomial time if the super-structure has bounded treewidth, and in linear time if in addition the super-structure has bounded maximum degree. Furthermore, we show that if the directed super-structure is acyclic, then exact Bayesian network structure learning can be carried out in quadratic time. We complement these positive results with a number of hardness results. We show that both restrictions (treewidth and degree) are essential and cannot be dropped without loosing uniform polynomial time tractability (subject to a complexity-theoretic assumption). Similarly, exact Bayesian network structure learning remains NP-hard for "almost acyclic" directed super-structures. Furthermore, we show that the restrictions remain essential if we do not search for a globally optimal network but aim to improve a given network by means of at most k arc additions, arc deletions, or arc reversals (k-neighborhood local search).
DecentCI: embracing the decentralized web for sustainable research collaboration cyberinfrastructure
Creators: name: Manning, T. Andrew
Publisher: name: Zenodo
Year: 2023
Subjects: research collaboration cyberinfrastructure
collaborative tools and services
software sustainability
decentralization
free and open source software
physics
astronomy

description: Openness and decentralization are qualities of scientific culture and methodology that have stood the test of time. For science to continue to thrive, the science gateways scientists use to do their research together should be open and decentralized too. At NCSA we have developed a full-stack cyberinfrastructure called DecentCI for research collaborations based on OpenStack and Kubernetes that makes it easy to deploy a curated set of collaborative tools and services from the open source ecosystem in addition to our own custom applications and integrations. The design is driven by a desire to prioritize data ownership, giving researchers as much control as possible over their data, communications, and access controls. We demonstrate the flexibility of our platform with examples from existing projects including Dark Energy Survey, South Pole Telescope, and MUSES that range from astronomy to nuclear physics, showcasing solutions for identity and access management, messaging, data sharing, code development, high-performance computing, community building and more.
title: Strengthening Archival Digitization Efforts with an Interdepartmental Approach: A Case Study
Creators: name: Hayden, Jessica
name: Monson, Jane D
name: Trask, Emory J
Publisher: name: Utah State University
Year: 2020

description: This case study details how the University of Northern Colorado (UNC) Libraries made the shift from a centralized model where digitization took place largely within the archives department, to a decentralized one that encompasses multiple library units. This shift came about as the result of the addition of a digital initiatives librarian position and the formation of a digitization steering committee comprised of employees representing different departments from throughout the Libraries. The result was a marked increase in the number of objects that could be digitized and made available online within a given period of time.
Planetary nebulae hosting accreting white dwarfs: A possible solution for the mysterious cut-off of Planetary Nebula Luminosity Function?
Creators: name: Souropanis, D.
name: Chiotellis, A.
name: Boumis, P.
name: Jones, D.
name: Akras, S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Many binary companions to the central stars of planetary nebulae (PNe) are found to be inflated, perhaps indicating that accretion onto the central star might occur during the PN phase. The discovery of a handful of nova eruptions and supersoft X-ray sources inside PNe supports this hypothesis. In this paper, we investigate the impact that hosting a steadily-accreting WD would have on the properties and evolution of a PN. By pairing the published accreting nuclear-burning WD models with radiation transfer simulations, we extract the time evolution of the emission line spectra and ionization properties of a PN that surrounds a 0.6$\rm M_{\odot}$ steadily nuclear-burning WD as a function of the mass accretion rate. We find that accreting WDs are able to form very extended, high excitation, [O III]-bright PNe, which are characterised by high nebular electron temperatures. Their properties remain almost invariant with time and their visibility time can be much longer compared to PNe powered by single WDs. We discuss the implications of our findings in explaining specific characteristics observed in PNe. Finally, we examine how accreting WDs affect the planetary nebula luminosity function (PNLF) by covering WD masses in the range of 0.5-0.8$\rm M_{\odot}$ and for various accretion rates within the steady accretion regime. We find that for all but the lowest accretion rates, the [O III]-luminosities are almost constant and clustered very close to the PNLF cut-off value. Our results suggest that mass-accreting WDs in interacting binaries might play a role in understanding the invariant cut-off of the PNLF.
description: 9 pages, 4 figures, accepted to MNRAS
title: The Business of Time Travel: A Case Study Examining the Processing of the Connie Willis Papers at the University of Northern Colorado
Creators: name: Trask, Emory J
name: Shull, Katherine
Publisher: name: Utah State University
Year: 2020

description: The work-in-progress article explores the donation, arrangement, and description of the papers of the internationally renowned science fiction novelist and short story writer, Connie Willis, to the University of Northern Colorado. The project is ongoing at UNC, but the article provides a case study exploring the both the value of science fiction collections and the challenges presented in processing them.
Osteological form - SZ17909 from St. Nicholas Church, Oslo
Creators: name: Schiøtz, Sara Georgine Fløien
Publisher: name: figshare
Year: 2022
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: Archaeology

description: Osteological form of the individual SZ17909, female aged 50-65 years, from St. Nicholas Church, Oslo. The form is made up of attachments from Buikstra and Ubelaker's Standards from 1994. The age and sex estimates are from the osteological report (Osteologisk analyse av skjelettmaterialet fra Nikolaikirkens kirkegård, NIKU oppdragsrapport 160/2016, by Jensen, Anne Østegaard in 2018) It was used as 'raw data' for my master's thesis 'Paleopathology and Health in Medieval Oslo'
On π-exponentials II : Closed formula for the index
Creators: name: Richard, Rodolphe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 12H25, 13F35, 14G20

description: (Quoted from the article) This article pursue the series, initiated by [Ric14], dedicated to Pulita's π-exponentials and p-adic differential equation of rank one with coefficients a polynomial in a ultrametric extension of the field of $p$-adic numbers. We complement [Ric14] with a closed formula for the index. The "$p$-typical" particular case answers one problem studied in [Mor10]. We also answer a question [Rob86, §2.4] of Robba on the comparison from rational cohomology toward Dwork cohomology. We even indicate a procedure to palliate the lack of isomorphy of this comparison. We establish by the way a characterisation of soluble equations up to equivalence on the dagger algebra. An appendix determine the polynomial complexity of the derived algorithm.
Osteological form - SZ15919 from St. Nicholas Church, Oslo
Creators: name: Schiøtz, Sara Georgine Fløien
Publisher: name: figshare
Year: 2022
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: Archaeology

description: Osteological form of the individual SZ15919, male aged 40-50 years, from St. Nicholas Church, Oslo. The form is made up of attachments from Buikstra and Ubelaker's Standards from 1994. The age and sex estimates are from the osteological report (Osteologisk analyse av skjelettmaterialet fra Nikolaikirkens kirkegård, NIKU oppdragsrapport 160/2016, by Jensen, Anne Østegaard in 2018) It was used as 'raw data' for my master's thesis 'Paleopathology and Health in Medieval Oslo'
X-ray computed microtomography characterizes the wound effect that causes sap flow underestimation by thermal dissipation sensors
Creators: name: Marañón Jiménez, Sara
name: Van den Bulcke, Jan
name: Piayda, Arnt
name: Van Acker, Jan
name: Cuntz, Matthias
name: Rebmann, Corinna
name: Steppe, Kathy
Publisher: name: Zenodo
Year: 2017

description: Insertion of thermal dissipation (TD) sap flow sensors in living tree stems causes damage of the wood tissue, as is the case with other invasive methods. The subsequent wound formation is one of the main causes of underestimation of tree water-use measured by TD sensors. However, the specific alterations in wood anatomy in response to inserted sensors have not yet been characterized, and the linked dysfunctions in xylem conductance and sensor accuracy are still unknown. In this study, we investigate the anatomical mechanisms prompting sap flow underestimation and the dynamic process of wound formation. Successive sets of TD sensors were installed in the early, mid and end stage of the growing season in diffuse- and ring-porous trees, Fagus sylvatica (Linnaeus) and Quercus petraea ((Mattuschka) Lieblein), respectively. The trees were cut in autumn and additional sensors were installed in the cut stem segments as controls without wound formation. The wounded area and volume surrounding each sensor was then visually determined by X-ray computed microtomography (X-ray microCT). This technique allowed the characterization of vessel anatomical transformations such as tyloses formation, their spatial distribution and quantification of reduction in conductive area. MicroCT scans showed considerable formation of tyloses that reduced the conductive area of vessels surrounding the inserted TD probes, thus causing an underestimation in sap flux density (SFD) in both beech and oak. Discolored wood tissue was ellipsoidal, larger in the radial plane, more extensive in beech than in oak, and also for sensors installed for longer times. However, the severity of anatomical transformations did not always follow this pattern. Increased wound size with time, for example, did not result in larger SFD underestimation. This information helps us to better understand the mechanisms involved in wound effects with TD sensors and allows the provision of practical recommendations to reduce biases associated with wounding in field sap flow measurements.
Quasiregular mappings on sub-Riemannian manifolds
Creators: name: Fassler, Katrin
name: Lukyanenko, Anton
name: Peltonen, Kirsi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 30L10

description: We study mappings on sub-Riemannian manifolds which are quasi-regular with respect to the Carnot-Caratheodory distances and discuss several related notions. On H-type Carnot groups, quasiregular mappings have been introduced earlier using an analytic definition, but so far, a good working definition in the same spirit is not available in the setting of general sub-Riemannian manifolds. In the present paper we adopt therefore a metric rather than analytic viewpoint. As a first main result, we prove that the sub-Riemannian lens space admits nontrivial uniformly quasiregular (UQR) mappings, that is, quasiregular mappings with a uniform bound on the distortion of all the iterates. In doing so, we also obtain new examples of UQR maps on the standard sub-Riemannian spheres. The proof is based on a method for building conformal traps on sub-Riemannian spheres using quasiconformal flows, and an adaptation of this approach to quotients of spheres. One may then study the quasiregular semigroup generated by a UQR mapping. In the second part of the paper we follow Tukia to prove the existence of a measurable conformal structure which is invariant under such a semigroup. Here, the conformal structure is specified only on the horizontal distribution, and the pullback is defined using the Margulis--Mostow derivative (which generalizes the classical and Pansu derivatives).
description: 33 pages
Parentifizierung – Die Auswirkungen auf die kindliche Entwicklung: Risiken, Folgen und Interventionsmöglichkeiten bei einer Parentifizierung
Creators: name: Leona, Hasler
Publisher: name: Zenodo
Year: 2022

description: Diese fachliterarische Bachelorarbeit trägt den Namen «Parentifizierung – Die Auswirkungen auf die kindliche Entwicklung» und wurde von Leona Hasler im Rahmen des Bachelorstudiengangs für Sozialpädagogik verfasst. Mit Hilfe von themenbezogener Fachliteratur möchte die Autorin dieser Bachelorarbeit folgende Fragestellung ermitteln: «Welche Risikofaktoren lassen sich auf die Entwicklung eines von Parentifizierung betroffenen Kindes feststellen und welche professionellen Interventionen stärken die Familie in dieser Situation?». Zu Beginn dieser Arbeit werden allgemeine Begrifflichkeiten erörtert, sodass zu einem späteren Zeitpunkt eine fachlich adäquate Auseinandersetzung erfolgen kann. Da sich die Themenwahl besonders auf die kindliche Entwicklung und die Thematik der Parentifizierung bezieht, wird diesen Begriffen eine grosse Bedeutung zugeordnet. Als Herzstück dieser Bachelorarbeit steht die Ermittlung von unterschiedlichen Risikofaktoren im Zentrum. Weiter wird Bezug genommen auf mögliche Auswirkungen auf das Kind, sowie die Behandlungs- & Interventionsmöglichkeiten. Die kausalen Zusammenhänge, welche sich aus den Recherchen ergeben, werden am Schluss dieser Bachelorarbeit im Hinblick auf die Hauptfragestellung erörtert und durch eine berufliche Relevanz ergänzt.
description: + Code Diss LU: hslusa basp + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik, 2022 + NL-Code: NLLUHSA202209
Short and Long Supports for Constraint Propagation
Creators: name: Nightingale, Peter
name: Gent, Ian Philip
name: Jefferson, Christopher
name: Miguel, Ian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Special-purpose constraint propagation algorithms frequently make implicit use of short supports -- by examining a subset of the variables, they can infer support (a justification that a variable-value pair may still form part of an assignment that satisfies the constraint) for all other variables and values and save substantial work -- but short supports have not been studied in their own right. The two main contributions of this paper are the identification of short supports as important for constraint propagation, and the introduction of HaggisGAC, an efficient and effective general purpose propagation algorithm for exploiting short supports. Given the complexity of HaggisGAC, we present it as an optimised version of a simpler algorithm ShortGAC. Although experiments demonstrate the efficiency of ShortGAC compared with other general-purpose propagation algorithms where a compact set of short supports is available, we show theoretically and experimentally that HaggisGAC is even better. We also find that HaggisGAC performs better than GAC-Schema on full-length supports. We also introduce a variant algorithm HaggisGAC-Stable, which is adapted to avoid work on backtracking and in some cases can be faster and have significant reductions in memory use. All the proposed algorithms are excellent for propagating disjunctions of constraints. In all experiments with disjunctions we found our algorithms to be faster than Constructive Or and GAC-Schema by at least an order of magnitude, and up to three orders of magnitude.
title: "The Right to Know": Decolonizing Native American Archives
Creators: name: O'Neal, Jennifer R
Publisher: name: Utah State University
Year: 2020

description: This work examines the historic and current policies regarding Native American archives, detailing the broader historic landscape of information services for tribal communities, the initiative to develop tribal archives in Indian Country, and the activism surrounding the proper care and management of Native American archive collections at non-Native repositories. Utilizing Vine Deloria's "Right to Know" call to action, the paper analyzes major activities and achievements of the national indigenous archives movement with a specific focus on archival activists and tribal communities in the American West who were at the forefront of a grassroots movement to establish and develop tribal archives, return and secure tribal history and rights during the restoration era, and establish training and best practices for the respectful care of indigenous collections. Possible next steps are suggested for decolonizing Native American archives within the context of the United Nations Declaration on the Rights of Indigenous Peoples.
On triangular lattice Boltzmann schemes for scalar problems
Creators: name: Dubois, François
name: Lallemand, Pierre
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We propose to extend the d'Humiéres version of the lattice Boltzmann scheme to triangular meshes. We use Bravais lattices or more general lattices with the property that the degree of each internal vertex is supposed to be constant. On such meshes, it is possible to define the lattice Boltzmann scheme as a discrete particle method, without need of finite volume formulation or Delaunay-Voronoi hypothesis for the lattice. We test this idea for the heat equation and perform an asymptotic analysis with the Taylor expansion method for two schemes named D2T4 and D2T7. The results show a convergence up to second order accuracy and set new questions concerning a possible super-convergence.
description: 23 pages
Osteological form - SZ15244 from St. Nicholas Church, Oslo
Creators: name: Schiøtz, Sara Georgine Fløien
Publisher: name: figshare
Year: 2022
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: Archaeology

description: Osteological form of the individual SZ15244, female aged50-70 years, from St. Nicholas Church, Oslo. The form is made up of attachments from Buikstra and Ubelaker's Standards from 1994. The age and sex estimates are from the osteological report (Osteologisk analyse av skjelettmaterialet fra Nikolaikirkens kirkegård, NIKU oppdragsrapport 160/2016, by Jensen, Anne Østegaard in 2018) It was used as 'raw data' for my master's thesis 'Paleopathology and Health in Medieval Oslo'
title: Tribal Archives, Traditional Knowledge, and Local Contexts: Why the “s” Matters
Creators: name: Christen, Kimberly
Publisher: name: Utah State University
Year: 2020

description: In this article I examine the landscape of tribal or Indigenous archival management as it relates to digital assets and, more specifically, how these might help us reimagine the intellectual property needs of local, traditional, and indigenous communities, libraries, archives, and museums as they seek to manage, preserve, and reuse their digital cultural heritage. The colonial collecting project was a destructive mechanism by which Native materials were unhinged from their local places and knowledge and at the same time used as markers of Native erasure. As part of a practical solution to contemporary intellectual property dilemmas faced by Indigenous peoples globally due in large part to the residue of the colonial landscape, I will introduce the Local Contexts project and the Traditional Knowledge License and Label platform (www.localcontexts.org) as one intervention into the sometimes-confusing arena of Indigenous intellectual property rights and the digital commons.
title: Natives in the Nation's Archives: The Southwest Oregon Research Project
Creators: name: Lewis, David G
Publisher: name: Utah State University
Year: 2020

description: The Southwest Oregon Research Project, initiated by members of the Coquille Indian tribe broke ground in Oregon for archival collections. Tribal scholars, working to restore and support their tribal nations collected documents and learned skills of archival research and organization. The last phase of the project returned collections to regional tribes in a community process of potlatch. The project theory reversed the trend of the late 19th and early 20th centuries of collecting information from tribes with little or no reciprocity. Tribes today are using the information to write histories, restore cultural identities and support tribal sovereignty.
Origin of multiwavelength emission from flaring high redshift blazar PKS 0537-286
Creators: name: Sahakyan, N.
name: Harutyunyan, G.
name: Israyelyan, D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The high redhsift blazars powered by supermassive black holes with masses exceeding $10^9\:M_\odot$ have the highest jet power and luminosity and are important probes to test the physics of relativistic jets at the early epochs of the Universe. We present a multi-frequency spectral and temporal study of high redshift blazar PKS 0537-286 by analyzing data from Fermi-LAT, NuSTAR Swift XRT and UVOT. Although the time averaged $γ$-ray spectrum of the source is relatively soft (indicating the high-energy emission peak is below the GeV range), several prominent flares were observed when the spectrum hardened and the luminosity increased above $10^{49}\:{\rm erg\:s^{-1}}$. The X-ray emission of the source varies in different observations and is characterised by a hard spectrum $\leq1.38$ with a luminosity of $>10^{47}\:{\rm erg\:s^{-1}}$. The broadband spectral energy distribution in the quiescent and flaring periods was modeled within a one-zone leptonic scenario assuming different locations of the emission region and considering both internal (synchrotron radiation) and external (from the disk, broad-line region and dusty torus) photon fields for the inverse Compton scattering. The modeling shows that the most optimistic scenario, from the energy requirement point of view, is when the jet energy dissipation occurs within the broad-line region. The comparison of the model parameters obtained for the quiescent and flaring periods suggests that the flaring activities are most likely caused by the hardening of the emitting electron spectral index and shifting of the cut-off energy to higher values.
description: Accepted for publication in MNRAS
title: Developing and Organizing an Archival Education Training Opportunity for Oregon’s Tribal Communities: The Oregon Tribal Archives Institute
Creators: name: Fernandez, Natalia M
name: Lewis, David G
Publisher: name: Utah State University
Year: 2020

description: In 2012 Oregon State University hosted the Oregon Tribal Archives Institute (OTAI), a week long archival education training opportunity specifically designed for Oregon’s nine federally recognized tribes. This article describes the OTAI project development, organization, and implementation. The authors offer various lessons learned that can be applied by others who wish to offer a similar archival education institute.
title: Images of the Surreal: Contrived Photographs of Native American Indians in Archives and Suggested Best Practices
Creators: name: Jones, Zachary R
Publisher: name: Utah State University
Year: 2020

description: This essay explores the complex history of contrived photographs of Native American Indians created by non-Native photographers around the turn of the twentieth century. Based on research and surveys this essay overviews issues associated with contrived photographs, colonial narratives of history, and offers perspectives and survey feedback on practices that could improve archival description of controversial historical photographs of American Indians found in archives around the world.
Theoretical prediction of a strongly correlated Dirac metal
Creators: name: Mazin, I. I.
name: Jeschke, Harald O.
name: Lechermann, Frank
name: Lee, Hunpyo
name: Fink, Mario
name: Thomale, Ronny
name: Valenti, Roser
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Recently, the most intensely studied objects in the electronic theory of solids have been strongly correlated systems and graphene. However, the fact that the Dirac bands in graphene are made up of $sp^{2}$-electrons, which are subject to neither strong Hubbard repulsion $U$ nor strong Hund's rule coupling $J$ creates certain limitations in terms of novel, interaction-induced physics that could be derived from Dirac points. Here we propose GaCu$_{3}$(OH)$_{6}$Cl$_{2}$ (Ga-substituted herbertsmithite) as a correlated Dirac-Kagome metal combining Dirac electrons, strong interactions and frustrated magnetism. Using density functional theory (DFT), we calculate its crystallographic and electronic properties, and observe that it has symmetry-protected Dirac points at the Fermi level. Its many-body physics is excitingly rich, with possible charge, magnetic and superconducting instabilities. Through a combination of various many-body methods we study possible symmetry-lowering phase transitions such as Mott-Hubbard, charge or magnetic ordering, and unconventional superconductivity, which in this compound assumes an $f$-wave symmetry.
Constraints on Extragalactic Background Light using TeV Observations of BL Lacertae objects
Creators: name: Qin, Longhua
name: Wang, Jiancheng
name: Gao, Quangui
name: Na, Weiwei
name: Li, Huaizhen
name: Wang, Ao
name: Yang, Chuyuan
name: Yang, Jianping
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The extragalactic background light (EBL) in the IR to UV bands partly absorbs very high energy (VHE, $E \geq$ 100GeV) $γ-$ray photons travelling over cosmological distances via pair production. In this paper, to get stronger constraints on EBL, we use the deliberate selection of the EBL model and data of five BL Lacs with better statistics and the harder spectra to limit the EBL density and the radiation mechanism of BL Lacs. We constrain the upper limit of the EBL density by fitting the spectral energy distributions (SEDs) of TeV BL Lacs and find that our results are compatible with the published measurement, reaching 50 $\rm{nW m^{-2} sr^{-1}}$. We also obtain that the EBL is not necessarily transparent to high VHE photons. We fix the intrinsic spectral index $Γ_i$ of TeV BL Lacs as 1.0 and 1.5 under observation evidence and model assumption. Comparing the EBL density given by galaxy count and $Spitzer$ observations, we then obtain that 1ES 1101-232 has $Γ_i$ $\leq$ 1.0 and 1ES 0229+200 should have $Γ_i$ not harder than 1.0. We demonstrate that the common radiation assumption of BL Lacs, in which the $Γ_i$ is softer than 1.5, should be revisited. Furthermore, we propose that the upper EBL density could be given by fitting the hardest energy spectra of TeV BL Lacs.
description: Accepted by MNRAS
Osteological form - SZ15261from St. Nicholas Church, Oslo
Creators: name: Schiøtz, Sara Georgine Fløien
Publisher: name: figshare
Year: 2022
Subjects: subject: 210102 Archaeological Science
subject: FOS: History and archaeology
subject: Archaeology

description: Osteological form of the individual SZxxxxx, unsexed adult aged 45-60years, from St. Nicholas Church, Oslo. The form is made up of attachments from Buikstra and Ubelaker's Standards from 1994. The age and sex estimates are from the osteological report (Osteologisk analyse av skjelettmaterialet fra Nikolaikirkens kirkegård, NIKU oppdragsrapport 160/2016, by Jensen, Anne Østegaard in 2018) It was used as 'raw data' for my master's thesis 'Paleopathology and Health in Medieval Oslo'
Conformal symmetry of JIMWLK Evolution at NLO
Creators: name: Kovner, Alex
name: Lublinsky, Michael
name: Mulian, Yair
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct the Next to Leading Order JIMWLK Hamiltonian for high energy evolution in ${\cal N}=4$ SUSY theory, and show that it possesses conformal invariance, even though it is derived using sharp cutoff on rapidity variable. The conformal transformation properties of Wilson lines are not quite the naive ones, but at NLO acquire an additional anomalous piece. We construct explicitly the inversion symmetry generator. We also show how to construct for every operator $O$, including the Hamiltonian itself, its "conformal extension" $\cal O$, such that it transforms under the inversion in the naive way.
description: 20 pages
title: Citizen Krueger:  An Examination of Cultural Province and Community Preservation
Creators: name: Hussman, Stephen J.
Publisher: name: Utah State University
Year: 2020

description: This study describes the efforts of an educator to both engage and enlighten his local community regarding the importance of preserving primary resources, and a brief community history highlighting its origin. Finally, this study offers a narrative regarding a community’s collaborative effort to re-discover and reclaim its identity.
Collaborative Primary Care: The impact of Interprofessional Teams on Panel Size: A Rapid Scoping Review
Creators: name: Carter, Cris
name: Jasmeen Dourka
name: McGowan, Jessie
name: Sibley, Lyn
name: Rajendra, Kanya
name: Dipika Neupane
name: Hina Ansari
name: Khan, Paul A.
name: Ivers, Noah
name: Thelen, Rachel
name: Thirugnanasampanthar, Sai Surabi
name: Kiran, Tara
name: Tricco, Andrea
name: Nincic, Vera
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Collaborative primary care
subject: Interprofessional primary care
subject: Interprofessional primary care teams
subject: Knowledge synthesis
subject: Scoping Review
subject: Team-based collaborative primary care

description: The aim of this rapid scoping review is to summarize the literature on the impact of interprofessional primary care team in terms of capacity of most responsible clinician (i.e., family physicians, nurse practitioner, primary care pediatrician, physician assistant and internist) to see more patients.
title: Fading Silver: The Territorial Cup, the Arizona Foot Ball League and the Mystery of the History
Creators: name: Spindler, Robert P.
Publisher: name: Utah State University
Year: 2020

description: New evidence regarding the Arizona Foot Ball League Championship Cup enhances our understanding of its' provenance as the oldest intercollegiate rivalry trophy in the United States. The story of the Territorial Cup and the 1899-1900 Normals’ football season offers many insights into territorial Phoenix history, archival preservation, memory, and symbolism.