cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Investigating student motivation throughout the school year
Creators: name: Lee, Jonathan
Publisher: name: University of British Columbia
Year: 2017

description: The purpose of this study was to examine the interrelationship between internal, external, and temporal influences of student academic motivation, and to identify strategies that teachers and curriculum developers can implement to improve student motivation. In this study, motivation was conceptualized using a Positive Youth Development (PYD) framework in addition to components of Bronfenbrenner’s Ecological Systems Theory. These theories recommend the use of a holistic approach to examine motivation, and to take into account both the internal and external influences of a youth’s development. PYD also emphasizes the need to surround youth with supportive external influences to promote positive development during adolescence. Semi-structured qualitative interviews were conducted with eight Grade 11 students at three different phases (October, January, and May) during the 2015-2016 school year. Several key internal, external, and temporal themes emerged from the participant interviews: i) Teachers greatly influenced student interest and enjoyment of a subject; ii) Participant motivation and academic goals were influenced by the attitudes and values of their peers and family; iii) As the year progressed, participant motivation generally decreased; iv) Excluding January, participants often had low motivation during winter months; v) An extended break was linked to increases in participant motivation; vi) Tests and assessments may increase student motivation. Findings illustrated the interconnected and dynamic relationship between the environment and internal aspects of student motivation, and also suggested that various educational strategies and teacher behaviours may improve student motivation.
Coexistence of d-wave superconductivity and antiferromagnetism induced by paramagnetic depairing
Creators: name: Hatakeyama, Yuhki
name: Ikeda, Ryusuke
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: It is shown theoretically that, in the superconducting state with $d_{x^2-y^2}$-pairing, a strong Pauli paramagnetic depairing (PD) induces not only the modulated Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state but also an incommensurate antiferromagnetic (AFM) (or spin-density wave) ordering with ${\bf Q}$-vector nearly paralle to a gap node. This intrinsic mechanism of field-induced coexistence of the $d$-wave superconducting and AFM orders does not need to assume a pair-density wave but is enhanced by the FFLO ordering. It is argued that this is the common origin of {\it both} the coexistent FFLO and AFM phases of CeCoIn$_5$ {\it and} the AFM quantum critical behavior around the superconducting $H_{c2}(0)$ seen in several heavy fermion superconductors and overdoped cuprates.
description: 4 pages, 2 figures, the version accepted for publication in J.Phys.Conf.Series (Proc. of SCES2010)
title: The effects of testosterone and ageing on skeletal muscle growth and androgen receptor expression
Creators: name: Williams, R
Publisher: name: Liverpool John Moores University
Year: 2022

description: Aging is associated with a significant reduction in skeletal muscle mass, termed sarcopenia. As life expectancies and elderly populations continue to increase, so does the prevalence of sarcopenia. Sarcopenia has been associated with depression, frailty, and severe reductions in quality of life in older adults, as well as placing significant strain on healthcare systems. Therefore, there is a clear requirement for effective, preventative treatments, which can easily be self-administered by older adults. Prior studies have suggested that reductions in androgen receptor content occur with aging, and that this may be integral to an age-associated loss of skeletal muscle mass. Testosterone, an androgenic steroid hormone instrumental in the development and maintenance of skeletal muscle mass also decreases with age. Testosterone may potentially increase androgen receptor content, thereby increasing skeletal muscle growth, and responsiveness to other treatments for sarcopenia such as exercise programmes. This thesis aimed to investigate the effects of various testosterone administration protocols on skeletal muscle growth and androgen receptor expression in vitro and determine how these effects differ in aged skeletal muscle tissue. The main findings from this work suggest that 50 nM and 100 nM testosterone accelerates differentiation, inhibits atrophy, and increases androgen receptor mRNA expression in vitro, with greater effects occurring following repeated doses. Conversely, these effects were not present in skeletal muscle cells which had undergone replicative ageing via population doubling, suggesting that there is a limit to the number of doublings cells can undergo before becoming immune to the effects of testosterone administration. Preliminary findings also demonstrated a testosterone induced increase in cellular metabolic activity, which may indicate an increase in cellular viability. In conclusion, this thesis provides evidence for a testosterone induced increase in androgen receptor expression, whilst also demonstrating an ageing induced resistance to the effects of testosterone administration in skeletal muscle.
Expanded EXPORT: Toward a Phenomenological Reading of VALIE EXPORT's Work of the 1960s and 1970s
Creators: name: Lundgren, Chloe
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Best known for her seminal feminist performance and multi-media art of the 1960s and 1970s, Austrian artist VALIE EXPORT’s work has understandably most frequently been presented or accounted for in conversation with semiotic, deconstructionist, and psychoanalytic groundings – most often centered around her engagement with the social inscription of the female body and female experience in society. EXPORT’s feminist and deconstructionist interest in conditioned and conditioning language, imagery and film, especially as they relate, psychologically and otherwise, to the female body and experience, is certainly clear throughout her practice. However, I argue in this paper that also clearly evident throughout her practice, and part of what makes it so compelling and effective from a feminist standpoint, is a phenomenologically feminist interest in and commitment to making visible and deconstructing the complicated, preexisting and conditioned, and embodied modes of perceiving, experiencing, being, and acting as an individual, and especially as a “woman,” in an often hostile, patriarchal, and sensory-laden world. Due to the scope of this paper and preexisting scholarship’s tendencies to focus on the aforementioned semiotic, deconstructionist, and psychoanalytic groundings particularly in her earlier oeuvre, I limit the discussion here to EXPORT’s photography, film, expanded films, and actions of the 1960s and 1970s. To begin to draw out the phenomenologically feminist foundations of these works and EXPORT’s greater practice, I mainly employ the phenomenological aesthetic theories of Maurice Merleau-Ponty and the early gender performativity theories of Judith Butler.
Trade-Offs in Developing Highly Interactive MLearning Content Using the Currently Available Development Platforms
Creators: name: Mihai, Hazi; Adrian, Barbu; Adriana, Malureanu
Publisher: name: Editura Universitara
Year: 2012
Subjects: subject: 0 Social sciences
subject: 37 Education
subject: 371 Instructional design
subject: 004:37 Elearning

description: This paper strives to give an answer to these questions by performing a short app markets analysis and developing an example app for a highly interactive use-case using three combinations of platforms and tools: flash-air, native and a mixed solution.
Beck-Erlang, Das Werk des Architekten Wilfried Max Beck
Creators: name: Wiertlewski, Carsten
Publisher: name: Karlsruhe
Year: 2012
Subjects: Beck-Erlang
Nachkriegsarchitektur
Stuttgart
Reutlingen
Denkmalschutz
"Kunst und Bau"
Op-Architecture
"organisches Bauen"
Ornamentik
SAAI

description: Der Stuttgarter Architekt Wilfried Max Beck (1924-2002) ist ein begabter Entwerfer, Vollblut-Architekt, Idealist und Baukünstler mit Leidenschaft. "Kämpferisch" titelt das BauNetz seinen Nachruf.
Er hinterlässt ein eindrucksvolles Werk, das zunächst auch überregional viel Beachtung findet, sich aber seit den achtziger Jahren im aktuellen Kontext verliert. Zu Unrecht, wie diese Monographie zu zeigen versucht.
Fermions from classical statistics
Creators: name: Wetterich, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe fermions in terms of a classical statistical ensemble. The states $τ$ of this ensemble are characterized by a sequence of values one or zero or a corresponding set of two-level observables. Every classical probability distribution can be associated to a quantum state for fermions. If the time evolution of the classical probabilities $p_τ$ amounts to a rotation of the wave function $q_τ(t)=\pm \sqrt{p_τ(t)}$, we infer the unitary time evolution of a quantum system of fermions according to a Schrödinger equation. We establish how such classical statistical ensembles can be mapped to Grassmann functional integrals. Quantum field theories for fermions arise for a suitable time evolution of classical probabilities for generalized Ising models.
description: extended version with two new sections on symmetries 25 pages
Laser Diodes Power Scaling Techniques
Creators: name: Caffa, Mattia
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: The limits that the development of single laser device (both semiconductor laser and fiber laser) has reached and hardly can overpass are discussed and an overview on the different techniques to combine multiple lasers into a single beam with greater power and quality is presented. Between them, for the promising results that have already been obtained and its importance in future research ,coherent combining techniques have been investigated in detail. To this purpose a MOPA system seeded with a fiber laser have been numerically simulated on Matlab and an active phase correction algorithm has been validated. In the last part of the thesis, the results of an experiment on spectral beam combining, another promising power scaling technique, are described. Wavelength locking using as feedback the 1st order of a blazed diffraction grating have been demonstrated with multiple diodes.
title: ОЦЕНКА ВЛИЯНИЯ ПРОБИОТИЧЕСКОГО КОМПЛЕКСА ПРОЛАКСИМ-В  НА ПОКАЗАТЕЛИ РОСТА И МИКРОБИОЦЕНОЗ ПТИЦЫ
Creators: name: Лазарев, Сергей Эдуардович
name: Забашта, Николай Николаевич
name: Мирошниченко, Петр Васильевич
name: Лисовицкая, Екатерина Петровна
Publisher: name: ФГБНУ КНЦЗВ
Year: 2021

description: В статье изложены материалы опыта, проведенного в условиях вивария Красно-дарского НИВИ на цыплятах-бройлерах кросса КОББ-500. В работе представлены ре-зультаты по использованию пробиотика Пролаксим-В при выращивании цыплят-бройлеров. Было отмечено увеличение массы потрошеных тушек, улучшение микро-флоры кишечника, повышение показателей сохранности поголовья птицы, получаю-щей совместно с общим рационом пробиотик.
Minimal models with light sterile neutrinos
Creators: name: Donini, A.
name: Hernandez, P.
name: Lopez-Pavon, J.
name: Maltoni, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the constraints imposed by neutrino oscillation experiments on the minimal extensions of the Standard Model (SM) with $n_R$ gauge singlet fermions ("right-handed neutrinos"), that can account for neutrino masses. We consider the most general coupling to SM fields of the new fields, in particular those that break lepton number and we do not assume any a priori hierarchy in the mass parameters. We proceed to analyze these models starting from the lowest level of complexity, defined by the number of extra fermionic degrees of freedom. The simplest choice that has enough free parameters in principle (i.e. two mass differences and two angles) to explain the confirmed solar and atmospheric oscillations corresponds to $n_R=1$. This minimal choice is shown to be excluded by data. The next-to-minimal choice corresponds to $n_R=2$. We perform a systematic study of the full parameter space in the limit of degenerate Majorana masses by requiring that at least two neutrino mass differences correspond to those established by solar and atmospheric oscillations. We identify several types of spectra that can fit long-baseline reactor and accelerator neutrino oscillation data, but fail in explaining solar and/or atmospheric data. The only two solutions that survive are the expected seesaw and quasi-Dirac regions, for which we set lower and upper bounds respectively on the Majorana mass scale. Solar data from neutral current measurements provide essential information to constrain the quasi-Dirac region. The possibility to accommodate the LSND/MiniBoone and reactor anomalies, and the implications for neutrinoless double-beta decay and tritium beta decay are briefly discussed.
description: 32 pages, 15 figures. Misprints and a small error corrected, references added. Conclusions unchanged
title: A rare case of tailgut cyst associated with Currarino’s syndrome
Creators: name: Baskararaj, Sriviruthi
Publisher: name: EURORAD
Year: 2022
Subjects: subject: Paediatric radiology
subject: Paediatric
subject: Conventional radiography
subject: CT
subject: MR
subject: Surgery
subject: Clinical Cases

description: Clinical History: A 2-year-old female child, previously managed with descending colostomy for low anorectal malformation was brought for routine follow-up. There was no history of abdominal pain or constipation. Her colostomy stoma was functional. On clinical examination, a pelvic mass was palpable incidentally. Neurological examination was normal.

description: 2 years, female
Evidence for competing magnetic instabilities in underdoped $\rm YBa_2Cu_3O_{6+x}$
Creators: name: Baledent, V.
name: Haug, D.
name: Sidis, Y.
name: Hinkov, V.
name: Lin, C. T.
name: Bourges, P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a polarized neutron scattering study of the orbital-like magnetic order in strongly underdoped ${\rm YBa_2Cu_3O_{6.45}}$ and ${\rm YBa_2(Cu_{0.98}Zn_{0.02})_3O_{6.6}}$. Their hole doping levels are located on both sides of the critical doping $p_{MI}$ of a metal-insulator transition inferred from transport measurements. Our study reveals a drop down of the orbital-like order slightly below $p_{MI}$ with a steep decrease of both the ordering temperature $T_{mag}$ and the ordered moment. Above $p_{MI}$, substitution of quantum impurities does not change $T_{mag}$, whereas it lowers significantly the bulk ordered moment. The modifications of the orbital-like magnetic order are interpreted in terms of a competition with electronic liquid crystal phases around $p_{MI}$. This competition gives rise to a mixed magnetic state in ${\rm YBa_2Cu_3O_{6.45}}$ and a phase separation in ${\rm YBa_2(Cu_{0.98}Zn_{0.02})_3O_{6.6}}$.
description: Submitted to PRB, 7 figures; http://link.aps.org/doi/10.1103/PhysRevB.83.104504
Resurrecting $b\bar{b}h$ with kinematic shapes
Creators: name: Grojean, Christophe
name: Paul, Ayan
name: Qian, Zhuoni
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2020
Subjects: * Automatic Keywords *
coupling: Yukawa
CERN LHC Coll: upgrade
kinematics
background
associated production
Higgs particle
FCC-hh

description: The associated production of a $b\bar{b}$ pair with a Higgs boson could provide an important probe to both the size and the phase of the bottom-quark Yukawa coupling, $y_b$. However, the signal is shrouded by several background processes including the irreducible $Zh, Z\to b\bar{b}$ background. We show that the analysis of kinematic shapes provides us with a concrete prescription for separating the $y_b$-sensitive production modes from both the irreducible and the QCD-QED backgrounds using the $b\bar{b}\gamma\gamma$ final state. We draw a page from game theory and use Shapley values to make Boosted Decisions Trees interpretable in terms of kinematic measurables and provide physics insights into the variances in the kinematic shapes of the different channels that help us complete this feat. Adding interpretability to the machine learning algorithm opens up the black-box and allows us to cherry-pick only those kinematic variables that matter most in the analysis. We resurrect the hope of constraining the size and, possibly, the phase of $y_b$ using kinematic shape studies of $b\bar{b}h$ production with the full HL-LHC data and FCC-hh.
Entendre avec les yeux : étude sur la bande dessinée
Creators: name: Navarro, Liza Alexandra
Publisher: name: University of British Columbia
Year: 2017

description: Research on comics has steadily increased in the last decade. However, one key element of comics has not been fully explored: sound. This research begins by investigating the evolution of sound in comics by understanding the important contributions of several comic artists such as William Hogarth, who emphasized the use of sequential art, and Rodolphe Töpffer, who added narration. This research then focuses on two well-known francophone comic series, Tintin by Hergé and Astérix by Goscinny and Uderzo. It addresses the question of how dialogue and onomatopoeias are shaped by textual elements such as speech bubbles, typography and text size. In Tintin and Astérix, sound is present in almost every page and is found to play an important role in each story. Although both series display a range of sounds, Astérix surpasses Tintin in two ways: the typography used in speech bubbles and the use and large variety of onomatopoeias. By exploring sound in comics in its various forms, this research brings new insight into the way readers interpret meaning through visual cues.
On the cardinality of sumsets in torsion-free groups
Creators: name: Böröczky, Károly J.
name: Pálfy, Péter P.
name: Serra, Oriol
Publisher: name: arXiv
Year: 2010
Subjects: subject: Group Theory (math.GR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $A, B$ be finite subsets of a torsion-free group $G$. We prove that for every positive integer $k$ there is a $c(k)$ such that if $|B|\ge c(k)$ then the inequality $|AB|\ge |A|+|B|+k$ holds unless a left translate of $A$ is contained in a cyclic subgroup. We obtain $c(k)
Ultrafast transient response and electron-phonon coupling in the iron-pnictide superconductor Ba(Fe(1-x)Co(x))2As2
Creators: name: Mansart, B.
name: Boschetto, D.
name: Savoia, A.
name: Rullier-Albenque, F.
name: Bouquet, F.
name: Papalazarou, E.
name: Forget, A.
name: Colson, D.
name: Rousse, A.
name: Marsi, M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The transient response of Ba(Fe(1-x)Co(x))2As2, x=0.08 was studied by pump-probe optical reflectivity. After ultrafast photoexcitation, hot electrons were found to relax with two different characteristic times, indicating the presence of two distinct decay channels: a faster one, of less than 1 ps in the considered pump fluence range, and a slower one, corresponding to lattice thermalization and lasting ~6 ps. Our analysis indicates that the fast relaxation should be attributed to preferential scattering of the electrons with only a subset of the lattice vibration modes, with a second moment of the Eliashberg function lambda(omega^2)~64 meV^2. The simultaneous excitation of a strong fully symmetric A(1g) optical phonon corroborates this conclusion and makes it possible to deduce the value of lambda~0.12. This small value for the electron-phonon coupling confirms that a phonon mediated process cannot be the only mechanism leading to the formation of superconducting pairs in this family of pnictides.
description: 5 pages, 3 figures
Detection of cosmic superstrings by geodesic test particle motion
Creators: name: Hartmann, Betti
name: Lämmerzahl, Claus
name: Sirimachan, Parinya
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: (p,q)-strings are bound states of p F-strings and q D-strings and are predicted to form at the end of brane inflation. As such these cosmic superstrings should be detectable in the universe. In this paper we argue that they can be detected by the way that massive and massless test particles move in the space-time of these cosmic superstrings, in particular we study solutions to the geodesic equation in the space-time of field theoretical (p,q)-strings. The geodesics can be classified according to the test particle's energy, angular momentum and momentum in the direction of the string axis. We discuss how the change of the magnetic fluxes, the ratio between the symmetry breaking scale and the Planck mass, the Higgs to gauge boson mass ratios and the binding between the F- and D-strings, respectively, influence the motion of the test particles. While massless test particles can only move on escape orbits, a new feature as compared to the infinitely thin string limit is the existence of bound orbits for massive test particles. In particular, we observe that - in contrast to the space-time of a single Abelian-Higgs string - bound orbits for massive test particles in (p,q)-string space-times are possible if the Higgs boson mass is larger than the gauge boson mass. We also compute the effect of the binding between the p- and the q-string on observables such as the light deflection and the perihelion shift. While light deflection can also be caused by other matter distributions, the possibility of a negative perihelion shift seems to be a feature of finite width cosmic strings that could lead to the unmistakable identification of such objects. In Melvin space-times, which are asymptotically non-conical, massive test particles have to move on bound orbits, while massless test particles can only escape to infinity if their angular momentum vanishes.
description: 22 pages including 13 figures; minor changes in abstract and references; typos corrected, figure added, BPS equations added; version accepted for publication in Phys. Rev. D
Ballistic Behavior for Random Schrödinger Operators on the Bethe Strip
Creators: name: Klein, Abel
name: Sadel, Christian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 82B44, Secondary 47B80, 60H25

description: The Bethe Strip of width $m$ is the cartesian product $\B\times\{1,...,m\}$, where $\B$ is the Bethe lattice (Cayley tree). We consider Anderson-like Hamiltonians $H_λ=\frac12 Δ\otimes 1 + 1 \otimes A+λ\Vv$ on a Bethe strip with connectivity $K \geq 2$, where $A$ is an $m\times m$ symmetric matrix, $\Vv$ is a random matrix potential, and $λ$ is the disorder parameter. Under certain conditions on $A$ and $K$, for which we previously proved the existence of absolutely continuous spectrum for small $λ$, we now obtain ballistic behavior for the spreading of wave packets evolving under $H_λ$ for small $λ$.
description: 33 pages, revised version, to appear in Journal of Spectral Theory
Curriculum Embedded Assessment: An Examination of the Array Model for Observing Unitizing
Creators: name: Kaduk, Catherine Ann
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Unitizing, a cognitive support for number sense, describes how students conceptualize quantities in terms of units. Given the importance of this skill, a formative assessment tool was developed for array multiplication problems, including arrays that model the distributive property found in typical classroom curricula. Video of 77 fourth grade students from a major metropolitan area solving array multiplication tasks were classified by unitizing ability on tasks in the range of additive and early stages of multiplicative thinking. Unitizing is the ability to recursively modify units understanding to create and coordinate the relationships between different units. Scoring is based on unit coordination schemes identified in the array problem solutions’ written record, gestures and verbal explanations. New gestures were identified as well as actions specific to scoring the array item type to add to the body of unit coordination work. Findings suggest that students who cannot coordinate two levels of units in an interiorized fashion are more affected by a partially covered array diagram in problem solution. The available tools and the strategic choices students made in the open response problems influenced opportunities to make inferences about student thinking. Implications for classroom use, the design of instructional materials, and professional development are shared.
Quantum superposition principle and generation of ultrashort optical pulses
Creators: name: Muradyan, Gevorg
name: Muradyan, Atom Zh.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss the propagation of laser radiation through a medium of quantum prepared Λ-type atoms in order to enhance the insight into the physics of QS-PT generator suggested in Phys. Rev. A 80, 035801 (2009). We obtain analytical results which give a qualitatively corerct description of the outcoming series of ultrashort optical pulses and show that for the case of alkali vapor medium QS-PT generation may be implemented under ordinary experimental conditions.
Towards an Improved Model for Visual Storytelling
Creators: name: Yatri Manoj Modi
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Visual storytelling is an intriguing and complex task that only recently entered the language and vision research arena. The task focuses on generating human-like, coherent and visually grounded stories from a sequence of images while maintaining the context over these images. In this study I survey recent advances in the field and conduct a thorough error analysis of three approaches to visual storytelling. I categorize and provide examples of common types of errors, and identify key shortcomings in prior work. Later, I make recommendations for addressing these limitations, and propose an improved model for visual storytelling: a hierarchical encoder-decoder network, with co-attention over the images and their natural language literal descriptions. I assess the performance of this model at generating visual stories. Finally, I experiment with a novel metric, BertScore (Zhang et al.,2019), as an alternative to human evaluation.
On wrapping corrections to GKP-like operators
Creators: name: Beccaria, Matteo
name: Levkovich-Maslyuk, Fedor
name: Macorini, Guido
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the recent paper arXiv:1010.5009, Maldacena et al. derive the two loop expressions for polygonal Wilson loops expectation values, or MHV amplitudes, by writing them as sums over exchanges of intermediate free particles. The spectrum of excitations of the flux tube between two null Wilson lines can be viewed as the spectrum of excitations around the infinite spin limit of finite twist operators in the sl(2) sector of N=4 SYM or the Gubser-Klebanov-Polyakov (GKP) string. This regime can be captured exploiting integrability and assuming that wrapping corrections are negligible compared to asymptotic Bethe Ansatz contributions. This assumption holds true for the N=4 SYM background GKP string, but deserves further analysis for excited states. Here, we investigate GKP cousins by considering various classes of (generalized) twist operators in beta-deformed N=4 SYM and ABJM theory. We show that the Y-system of Gromov-Kazakov-Vieira easily leads to accurate large spin expansions of the wrapping correction at lowest order in weak-coupling perturbation theory. As a byproduct, we confirm that wrapping corrections are subleading in all the considered cases.
description: 37 pages, 6 eps figures
Augmented Lagrangian Method for Constrained Nuclear Density Functional Theory
Creators: name: Staszczak, A.
name: Stoitsov, M.
name: Baran, A.
name: Nazarewicz, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The augmented Lagrangiam method (ALM), widely used in quantum chemistry constrained optimization problems, is applied in the context of the nuclear Density Functional Theory (DFT) in the self-consistent constrained Skyrme Hartree-Fock-Bogoliubov (CHFB) variant. The ALM allows precise calculations of multidimensional energy surfaces in the space of collective coordinates that are needed to, e.g., determine fission pathways and saddle points; it improves accuracy of computed derivatives with respect to collective variables that are used to determine collective inertia; and is well adapted to supercomputer applications.
description: 6 pages, 3 figures; to appear in Eur. Phys. J. A
Growing closer to nature : students’ environmental attitudes and perspectives after a field trip to the Bamfield Marine Sciences Centre
Creators: name: Mayer, Colin
Publisher: name: University of British Columbia
Year: 2017

description: In this study, I measure the impact of a five-day field trip to a marine science research facility on the environmental attitudes and perspectives of British Columbian secondary science students. I used a descriptive case study that employed a mixed methods approach to address my research questions. To collect quantitative data, the participants completed the New Ecological Paradigm survey (Dunlap & Van Liere, 2008) both before and after the trip to Bamfield Marine Research Station. I then utilized semi-structured focus groups to further elicit participants’ interpretations and reflections about the environmental experience. Analysis of the data indicates the experience did have an impact on student attitudes and perspectives about the environment. The results of the pre-and-post New Ecological Paradigm survey showed that the environmental experience had a statistically significant impact (p=.000) on students’ environmental attitudes and perspectives. The semi-structured focus groups yielded three key findings: (1) participants’ pro-environmental beliefs became strengthened as a result of the environmental experience; (2) participants felt much closer and interconnected with nature as a result of the environmental experience; (3) participants developed a preference towards learning through experiential and environmental education methods, and showed evidence of metacognitive awareness and assimilation throughout the environmental experience. This research provides insights into the impact of environmental and experiential learning pedagogies upon student attitudes about and perspectives on the environment. This research is timely as it provides support for education that addresses environmental issues, such as the potentially irreversible changes to our climate brought on by human actions.
"Archival collections" vs "Computational corpora": The Structure and Concerns of Text Repositories Built for Disparate Tasks
Creators: name: Irene Yi
name: Amelia Lake
name: Kassandra Haakman
name: Sarah Babinski
name: Ka Fai Yip
name: Sunkulp Ananthanarayan
name: Coralie Cram
Publisher: name: Zenodo
Year: 2022
Subjects: linguistics
language documentation
archival collections
computational corpora

description: “Archival collections” vs “Computational corpora”: The Structure and Concerns of Text Repositories Built for Disparate Tasks

Irene Yi, Amelia Lake, Kassandra Haakman, Sarah Babinski, Ka Fai Yip, Sunkulp Ananthanarayan, Coralie Cram & Claire Bowern

Presented 7 October 2022 at the Berlin-Brandenburg Academy of Sciences and Humanities at the Conference Where Do We Need to Go From Here? - Language Documentation and Archiving,  in the UNESCO International Decade of Indigenous Languages
On Restricted Tangent Bundles of Grassmannian, and Betti Numbers of The moduli of Stable Sheaves on P^2
Creators: name: Sayanta Mandal
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: This thesis is based on work done on two different problems. The first problem is regarding restricted tangent bundles of the Grassmannian to rational curves. Let n >= 4, 2 <= r <= n-2 and e >= 1. We show that the intersection of the locus of degree e morphisms from P^1 to G(r, n) with the restricted universal sub-bundles having a given splitting type and the locus of degree e morphisms with the restricted universal quotient-bundle having a given splitting type is non-empty and generically transverse. As a consequence, we get that the locus of degree e morphisms from P^1 to G(r, n) with the restricted tangent bundle having a given splitting type need not always be irreducible. The second problem is regarding the Betti numbers of the moduli space of sheaves on the projective plane. Let r >= 2 be an integer, and let a be an integer coprime to r. We show that if c_2 >= n+ (r-1)a^2 /2r + (r^2 + 1)/2 , then the 2nth Betti number of the moduli space M_{P^2,O_{P^2} (1)}(r,O_{P^2}(a), c_2) stabilizes.
Weak localization of Dirac fermions in graphene beyond the diffusion regime
Creators: name: Nestoklon, M. O.
name: Averkiev, N. S.
name: Tarasenko, S. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a microscopic theory of the weak localization of two-dimensional massless Dirac fermions which is valid in the whole range of classically weak magnetic fields. The theory is applied to calculate magnetoresistance caused by the weak localization in graphene and conducting surfaces of bulk topological insulators.
description: 5 pages, 2 figures
Understanding perfectioinsm in academic contexts from a motivational perspective
Creators: name: Lin, Shengjie
name: 0000-0002-1352-321X
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Perfectionism
Motivation
Domain-specific
Academic setting
Latent-profile analysis
College students

description: Research on perfectionism has developed rapidly since the 1990s (Frost et al., 1990; Hewitt & Flett, 1991). The more adaptive perfectionistic strivings refer to excessively high standards and expectations whereas the more maladaptive perfectionistic concerns tap critical evaluation and dissatisfaction towards one’s performance (Frost et al., 1993; Stoeber & Otto, 2006). Compared to the extensive body of perfectionism research in the mental health and sports fields, the examination of perfectionism within the academic context is relatively rare. However, studies show that the degree of perfectionism among college students has increased over the past three decades (Curran & Hill, 2019) and academics was found to be one of the areas most influenced by perfectionism (Haase et al., 2013; Stoeber & Stoeber, 2009). Thus, a further examination of perfectionism in academic contexts is necessary. The goal of this dissertation is to extend what we know about perfectionism as it functions in academia by conducting two studies connecting perfectionism with achievement motivation (Eccles, 2005; Wigfield & Eccles, 2020). The first study examined whether perfectionism is domain-specific in academic contexts. Specifically, I used mean comparisons and factor analysis to reveal that perfectionism exhibits as domain-specific within academic settings. Moreover, the patterns between perfectionism and several motivational constructs from the expectancy-value theory (Wigfield & Eccles, 2020) were assessed to support its domain-specific nature. The second study adopted a person-centered approach (i.e., latent profile analysis) to examine how individuals’ perfectionistic tendencies and achievement value beliefs cohere simultaneously in generating various profiles. Four profiles were identified in this study. Further, the results showed that academic outcomes differed across the various profiles. Lastly, this study revealed that students with certain demographic backgrounds were over- or under-represented within some profiles.
Complexities in Multi-representational Contradiction Detection
Creators: name: Burkett, Candice
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Both of the current studies investigated the role of complexities in sensitivity to consistency between text and graph in the domain of science. Participants received eight experimental materials consisting of a single sentence claim and a line graph that was either consistent with, or contradictory to the claim. Contradictory graphs had a reversed y-axis that resulted in traditional interpretations of the data being incorrect. Study 1 manipulated the complexity of the graphs. Study 2 included the same manipulation, but also manipulated the complexity of the claims that accompanied the more or less complex graphs. Results of both studies demonstrate that participants showed a consistency bias, that is a tendency to say that the text and graph matched regardless of their consistency. Results also showed that participants were less sensitive to consistency when materials were more complex (both graphs and claims) even when prior knowledge, graph literacy, and numeracy understanding was controlled for. When asked what part of the materials were used to justify consistency decisions participants rarely mentioned the y-axis, although frequency of mention was correlated with better sensitivity. Finally, tasks were consistently rated as being not difficult and participants consistently demonstrated high levels of confidence in their decisions regardless of condition.
X-ray bursting neutron star atmosphere models: spectra and color corrections
Creators: name: Suleimanov, V.
name: Poutanen, J.
name: Werner, K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray bursting neutron stars in low mass X-ray binaries constitute an appropriate source class to constrain masses and radii of neutron stars, but a sufficiently extended set of corresponding model atmospheres is necessary for these investigations. We computed such a set of model atmospheres and emergent spectra in a plane-parallel, hydrostatic, and LTE approximation with Compton scattering taken into account. The models were calculated for six different chemical compositions: pure hydrogen and pure helium atmospheres, and atmospheres with solar mix of hydrogen and helium, and various heavy element abundances Z = 1, 0.3, 0.1, and 0.01 Z_sun. For each chemical composition the models are computed for three values of surface gravity, log g =14.0, 14.3, and 14.6, and for 20 values of the luminosity in units of the Eddington luminosity, L/L_Edd, in the range 0.001--0.98. The emergent spectra of all models are redshifted and fitted by a diluted blackbody in the RXTE/PCA 3--20 keV energy band, and corresponding values of the color correction (hardness factors) f_c are presented. Theoretical dependences f_c - L/L_Edd can fitted to the observed dependence K^{-1/4} - F of the blackbody normalization K on flux during cooling stages of X-ray bursts to determine the Eddington flux and the ratio of the apparent neutron star radius to the source distance. If the distance is known, these parameters can be transformed to the constraints on neutron star mass and radius. The theoretical atmosphere spectra can also be used for direct comparison with the observed X-ray burst spectra.
description: 19 pages, 12 figures, 1 table, submitted to A&A
An intelligent multi-agent based detection framework for classification of android malware
Creators: name: Alam, Mohammed Shahidul
Publisher: name: University of British Columbia
Year: 2017

description: Smartphones play an important role in our day to day activities. Some of them include monitoring our health such as eating habits, sleep patterns and exercise schedule. The Android mobile operating system developed by Google is currently the most popular operating system for such smart devices. It is also the most vulnerable device due to its open nature of software installation, ability to dynamically load code during runtime, and lack of updates to known vulnerabilities even on popular versions of the system. Thus, securing such devices from malware that targets user privacy and monetary resources is paramount. In this thesis, we developed a context-aware multi-agent based framework targeted towards protecting Android devices. A malware detection technique has to be context-aware due to limited battery resources of mobile devices. In some cases however, battery utilization might become secondary. This includes scenarios where detection accuracy is given a higher priority over battery utilization. Thus, a detection framework has to be intelligent and flexible. To reach this goal, our framework relies on building multiple scalable context based models, and observing the behaviour patterns of Android devices by comparing to relevant pre-built models. We make use of machine learning classifiers that are more scalable to help classify features that could be used to detect malware by behaviour analysis. In this framework, the expensive analysis components utilizing machine learning algorithms are pushed to server side, while agents on the Android client are used mainly for context-aware feature gathering to transmit the information to server side classifiers for analysis, and to receive classification results from the server side agents.
A Non-relativistic Logarithmic Conformal Field Theory from a Holographic Point of View
Creators: name: Bergshoeff, Eric A.
name: de Haan, Sjoerd
name: Merbis, Wout
name: Rosseel, Jan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a fourth-order derivative scalar field configuration in a fixed Lifshitz background. Using an auxiliary field we rewrite the equations of motion as two coupled second order equations. We specialize to the limit that the mass of the scalar field degenerates with that of the auxiliary field and show that logarithmic modes appear. Using non-relativistic holographic methods we calculate the two-point correlation functions of the boundary operators in this limit and find evidence for a non-relativistic logarithmic conformal field theory at the boundary.
description: 17 pages, v2 : refs. added
Model for screening of resonant magnetic perturbations by plasma in a realistic tokamak geometry and its impact on divertor strike points
Creators: name: Cahyna, Pavel
name: Nardon, Eric
Publisher: name: arXiv
Year: 2010
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: This work addresses the question of the relation between strike-point splitting and magnetic stochasticity at the edge of a poloidally diverted tokamak in the presence of externally imposed magnetic perturbations. More specifically, ad-hoc helical current sheets are introduced in order to mimic a hypothetical screening of the external resonant magnetic perturbations by the plasma. These current sheets, which suppress magnetic islands, are found to reduce the amount of splitting expected at the target, which suggests that screening effects should be observable experimentally. Multiple screening current sheets reinforce each other, i.e. less current relative to the case of only one current sheet is required to screen the perturbation.
description: Accepted in the Proceedings of the 19th International Conference on Plasma Surface Interactions, to be published in Journal of Nuclear Materials. Version 2: minor formatting and text improvements, more results mentioned in the conclusion and abstract
Study of an iso-Paraffinic Alcohol-to-Jet Fuel, Kerosene-Based Jet Fuels, and their Mixtures
Creators: name: Guzman, Juan Pablo
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: The HPST Laboratory examines the chemical kinetics of the pyrolysis and oxidation of hydrocarbon propulsion fuels using lower and higher pressure shock tubes. Using both shock tubes, experiments were conducted to determine the pyrolytic and oxidative decomposition products of an alcohol-to-jet fuel (ATJ) composed primarily of about 90% iso-dodecane, the remaining 10% is composed of iso-cetane, iso-nonane, and iso-tridecane. The oxidative decomposition of n-heptane, F-24, Jet A, and mixtures of ATJ/n-heptane and ATJ/F-24 were also studied. Gas chromatography (GC) and GCxGC was used to analyze the products of the chemical reactions and to determine their mole fractions. Experiments were performed over a wide range of conditions, pressure ranging 4 – 50 bar, reaction time 2 – 8.5 ms, initial fuel load 45 – 1400 ppm, and equivalence ratio 0.27 – 1.36 over a determined temperature range. Experiments were performed at such wide range of conditions to analyze the effects of pressure, reaction time, and initial fuel load. ATJ/n-heptane results were compared against pure ATJ and n-heptane to see the effect of mixing an iso-paraffinic synthetic jet fuel with a well-characterized kerosene-based jet fuel surrogate, n-heptane. These comparison between pure fuels and their mixture was repeated for a kerosene-based jet fuel, F-24, instead of a surrogate. Jet A experiments were conducted to analyze the difference between Jet A and F-24, since F-24 is basically Jet A with additives. The experimental results were compared against mole fractions computed using different chemical kinetic models. The ability of each kinetic model to capture the effect of varying the experimental test conditions on the evolution of intermediate species was discussed and kinetic analyses, such as ROP and sensitivity have been conducted to identify the important reaction pathways, and Monte Carlo uncertainty analysis to study the model’s capability of capturing the experimental data within a predetermined pre-exponential factor uncertainty in the model.
Quantum-defect analysis of $np$ and $nd$ $\rm{H_3}$ Rydberg energy levels
Creators: name: Wang, Jia
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, Rydberg energy levels of the triatomic hydrogen molecule ($\rm{H_3}$) are studied with multichannel quantum-defect theory. We extract the body-frame p-wave quantum defects from highly accurate \emph{ab initio} electronic potential surfaces and calculate the quantum defects of higher momentum states by using the long-range multipole potential model. To obtain laboratory-frame quantum defects, we perform a rovibrational-frame transformation with accurate rovibrational states of $\rm{H_3^+}$. Finally, we use the laboratory-frame quantum defects to calculate Rydberg energy levels for the fundamental neutral triatomic molecule $\rm{H_3}$.