cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The role of narratives in migratory decision-making. A comparative study of Afghan transit migrants in Turkey and potential migrants in the Gambia
Creators: name: Brekke, Jean-Paul
name: Trauner, Florian
name: Adam, Ilke
name: Cham, Omar N.
name: Sattlecker, Hannah
name: Thorbjørnsrud, Kjersti
Publisher: name: Zenodo
Year: 2023
Subjects: narratives
migration
EU
information campaigns
Gambia
Afghan migrants
Turkey
local narratives
EU-promoted narratives
irregular migration

description: This BRIDGES report studies the migration narratives of (potential) migrants in the Gambia as well as Afghan (transit) migrants in Istanbul. A particular emphasis has been placed on the question of how individually held narratives on migration, Europe, and the irregular migration journey interrelate with EU-promoted messages put forward in migration information campaigns. The locally held narratives highlight the opportunities for a positive life change enabled by migration to Europe. Migrants who made it to Europe are perceived as successful individuals who are now safe (in the Afghan case) and/or able to improve the situation of their families and communities (primarily in the Gambian case). In the absence of legal migration opportunities, the narratives on migration in both countries primarily concern irregular migration. Regarding the narratives on Europe, those of potential migrants in the Gambia are more nuanced than those in Turkey. While Europe is still seen as a place of opportunity in the Gambia, informants also put forward more critical statements on Europe, for instance regarding the colonial past. The narratives on migration and Europe promoted in EU migration campaigns strongly differ from those of (potential) migrants in the Gambia and those in transit in Turkey. EU-funded information campaigns mostly portray (irregular) migration to and life in Europe in a negative light. However, there is a match between the locally dominant and EU-promoted narratives regarding the issue of risks during the migratory journey. Independently of or alongside migration information campaigns, there has been an intensifying public and private discourse about people suffering or dying on the road. Compared to those from the Gambia, Afghan migrants (in transit) in Istanbul pose fewer questions about whether to accept the risk of irregular migration as, for them, there seems to be no alternative. They increasingly perceive that they are unwanted in Turkey. Onward migration is narrated as a solution to a difficult or even life-threatening situation in Turkey, due to the risk of being deported back to Afghanistan. The narrative of Afghans in Turkey is one of forced migration. Overall, the study demonstrates that the messages of EU migration information campaigns compete with locally dominant narratives. Information and knowledge about migration constitute just one of the many drivers of migration that interrelate with others.
Systematic review and meta-analysis of stenting or angioplasty for the treatment of deep vein thrombosis
Creators: name: Flumignan, Ronald
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: angioplasty
subject: Evidence-Based Medicine
subject: stents
subject: systematic review
subject: Venous Thrombosis

description: This is a protocol for a systematic review of intervention. The objectives are as follows: To assess the effects of stenting or angioplasty for the treatment of deep vein thrombosis.
Mucus-Penetrating Nanosuspensions for Enhanced Delivery of Poorly Soluble Drugs to Mucosal Surfaces
Creators: name: Yu, Tao
name: Lai, Samuel K.
name: Choi, Woo Jin
name: Zhong, Weixi
name: Chen, Minmin
name: Anonuevo, Abraham
name: Chisholm, Jane
name: Pulicare, Sarah
name: Fridley, Colleen
name: Ensign, Laura M.
name: Hanes, Justin
name: Suk, Jung Soo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Mucus-penetrating Nanosuspensions, consisting of pure hydrophobic therapeutics with dense muco-inert coatings that enable particles to effectively bypass the mucus barrier, demonstrate superior drug distribution and absorption at mucosal surfaces. With significantly increased drug load compared to polymeric systems and established clinical translation of nanosuspensions-based products, mucus-penetrating nanosuspensions are a promising vehicle for improving mucosal delivery of poorly soluble drugs.
Long range correction for multi-site Lennard-Jones models and planar interfaces
Creators: name: Werth, Stephan
name: Rutkai, Gábor
name: Horsch, Martin
name: Vrabec, Jadran
name: Hasse, Hans
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A slab based long range correction approach for multi-site Lennard-Jones models is presented for systems with a planar film geometry that is based on the work by Janecek, J. Phys. Chem. B 110: 6264 (2006). It is efficient because it relies on a center-of-mass cutoff scheme and scales in terms of numerics almost perfectly with the molecule number. For validation, a series of simulations with the two-center Lennard-Jones model fluid, carbon dioxide and cyclohexane is carried out. The results of the present approach, a site-based long range correction and simulations without any long range correction are compared with respect to the saturated liquid density and the surface tension. The present simulation results exhibit only a weak dependence on the cutoff radius, indicating a high accuracy of the implemented long range correction.
Particles for Local Delivery of Proteins Using Intra-Articular Route
Creators: name: Tian, Shaomin
name: Khan, Saad A.
name: Luft, James C.
name: Khodabandehlou, Khosrow
name: DeSimone, Joseph M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Designing a vehicle for local delivery of proteins using intra-articular route is an attractive option to minimize the adverse effects associated with systemic exposure and to maximize the efficacy. Slowly dissolving silylated microparticles are designed with specific size and shape that are capable of extending the retention time of a model protein (bovine serum albumin) in the murine knee joint. No cytotoxicity is observed for the reconstituted formulation when tested against synovial fibroblasts and RAW 264.7 macrophages.
Imaging hypotheses - fMRI
Creators: name: Botvinik-Nezer, Rotem
name: Schonberg, Tom
name: Salomon, Tom
Publisher: name: Open Science Framework
Year: 2022

description: Description: 1. Greater fMRI activation after CAT in response to HV Go items in the following regions: * Episodic memory related regions in the MTL: hippocampus and perirhinal cortex. * Top-down attention-related dorsal parietal cortex (DPC), including the intra-parietal sulcus (IPS) and the superior parietal lobule (SPL). * Pre-frontal regions, mainly the value-related vmPFC. 2. Stronger functional connectivity between the pre-frontal cortex and the MTL, as well as with lower level motor and perceptual regions. 3. Replicating previous results: fMRI activation in the vmPFC while choosing Go over NoGo HV items during the probe phase.
High-frequency limit of Nash equilibria in a market impact game with transient price impact
Creators: name: Schied, Alexander
name: Strehle, Elias
name: Zhang, Tao
Publisher: name: arXiv
Year: 2015
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: 91A05, 91A40, 91G10

description: We study the high-frequency limits of strategies and costs in a Nash equilibrium for two agents that are competing to minimize liquidation costs in a discrete-time market impact model with exponentially decaying price impact and quadratic transaction costs of size $θ\ge0$. We show that, for $θ=0$, equilibrium strategies and costs will oscillate indefinitely between two accumulation points. For $θ>0$, however, strategies, costs, and total transaction costs will converge towards limits that are independent of $θ$. We then show that the limiting strategies form a Nash equilibrium for a continuous-time version of the model with $θ$ equal to a certain critical value $θ^*>0$, and that the corresponding expected costs coincide with the high-frequency limits of the discrete-time equilibrium costs. For $θ\neqθ^*$, however, continuous-time Nash equilibria will typically not exist. Our results permit us to give mathematically rigorous proofs of numerical observations made in Schied and Zhang (2013). In particular, we provide a range of model parameters for which the limiting expected costs of both agents are decreasing functions of $θ$. That is, for sufficiently high trading speed, raising additional transaction costs can reduce the expected costs of all agents.
Characterizing Intermittency of 4-Hz Quasi-periodic Oscillation in XTE J1550-564 using Hilbert-Huang Transform
Creators: name: Su, Yi-Hao
name: Chou, Yi
name: Hu, Chin-Ping
name: Yang, Ting-Chang
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the time-frequency analysis results based on the Hilbert-Huang transform (HHT) for the evolution of a 4-Hz low-frequency quasi-periodic oscillation (LFQPO) around the black hole X-ray binary XTE J1550-564. The origin of LFQPOs is still debated. To understand the cause of the peak broadening, we utilized a recently developed time-frequency analysis, HHT, for tracking the evolution of the 4-Hz LFQPO from XTE J1550 564. By adaptively decomposing the ~4-Hz oscillatory component from the light curve and acquiring its instantaneous frequency, the Hilbert spectrum illustrates that the LFQPO is composed of a series of intermittent oscillations appearing occasionally between 3 Hz and 5 Hz. We further characterized this intermittency by computing the confidence limits of the instantaneous amplitudes of the intermittent oscillations, and constructed both the distributions of the QPO's high and low amplitude durations, which are the time intervals with and without significant ~4-Hz oscillations, respectively. The mean high amplitude duration is 1.45 s and 90% of the oscillation segments have lifetimes below 3.1 s. The mean low amplitude duration is 0.42 s and 90% of these segments are shorter than 0.73 s. In addition, these intermittent oscillations exhibit a correlation between the oscillation's rms amplitude and mean count rate. This correlation could be analogous to the linear rms-flux relation found in the 4-Hz LFQPO through Fourier analysis. We conclude that the LFQPO peak in the power spectrum is broadened owing to intermittent oscillations with varying frequencies, which could be explained by using the Lense-Thirring precession model.
description: 27 pages, 9 figures, accepted for publication in The Astrophysical Journal
Discovering useful behavioural insights from digital crisis chatline conversations
Creators: name: Sweeney, Colm
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This research is to discover what type of behavioral insights can be discovered from digital crisis chat line conversations. To answer the following research questions: A) Do digital crisis chat line conversations contain useful behavioral insights? B) How can behavioral insights of digital crisis chat line conversations be put to use?
Engineered Nanoplatelets for Enhanced Treatment of Multiple Myeloma and Thrombus
Creators: name: Bomba, Hunter N.
name: Hu, Quanyin
name: Gu, Zhen
name: Xin, Hongliang
name: Qian, Chenggen
name: Sun, Wujin
name: Shen, Qundong
name: Chen, Zhaowei
name: Wang, Jinqiang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: A platelet membrane-coated biomimetic nanocarrier, which can sequentially target bone microenvironment and myeloma cells to enhance the drug availability at the myeloma site and decrease the off-target effects, is developed for inhibiting the multiple myeloma growth and simultaneously eradicating the thrombus complication.
The Shape of a Stretched Polymer
Creators: name: Sassi, Alberto S.
name: Assenza, Salvatore
name: Rios, Paolo De Los
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The shape of a polymer plays an important role in determining its interactions with other molecules and with the environment, and is in turn affected by both of them. As a consequence, in the literature the shape properties of a chain in many different conditions have been investigated. Here, we characterize the shape and orientational properties of a polymer chain under tension, a physical condition typically realized both in single-molecule experiments and in vivo. By means of analytical calculations and Monte Carlo simulations, we develop a theoretical framework which quantitatively describes these properties, highlighting the interplay between external force and chain size in determining the spatial distribution of a stretched chain.
description: added suppl. material and references
Esterase-Activated Charge-Reversal Polymer for Fibroblast-Exempt Cancer Gene Therapy
Creators: name: Tang, Jianbin
name: Zhong, Yin
name: Liu, Xiangrui
name: Piao, Ying
name: Zhou, Zhuxian
name: Zhang, Qianzhi
name: Huang, Leaf
name: Miao, Lei
name: Qiu, Nasha
name: Shen, Youqing
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Selective gene expression in tumors via responsive dissociation of polyplexes triggered by intracellular signals is demonstrated. An esterase-responsive charge-reversal polymer mediates selective gene expression in the cancer cells high in esterases over fibroblasts low in esterase activity. Its gene therapy with the TRAIL suicide gene effectively induces apoptosis of HeLa cells but does not activate fibroblasts to secrete WNT16B, enabling potent cancer gene therapy with few side effects.
Effectiveness of Inspiratory muscle training (IMT) on Respiratory muscle strength, pulmonary function and functional capacity in patients undergoing abdominal surgery- A systematic review of systematic reviews
Creators: name: Amaravadi, Sampath kumar
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Physiotherapy

description: Post-operative pulmonary complications (PPCs) following abdominal surgery are common in patient undergoing abdominal surgery. Inspiratory muscle training (IMT) given as pre-rehabilitation reduces the chance of occurrence of PPC. However, there is low evidence on effect of IMT on MIP and various other outcomes such as maximum inspiratory pressure and pulmonary function. The review was developed with the objective of identifying the effectiveness of IMT on maximal inspiratory pressure and its association with PPC and lung functions.
Inflammation-Triggered Cancer Immunotherapy by Programmed Delivery of CpG and Anti-PD1 Antibody
Creators: name: Sun, Wujin
name: Gu, Zhen
name: Wang, Chao
name: Wang, Andrew Z.
name: Wright, Grace
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Inflammation-triggered combination delivery of anti-PD-1 antibody and CpG oligodeoxynucleotides (CpG ODNs) has been demonstrated to prevent cancer relapse utilizing postsurgical inflammatory response. The controlled release of anti-PD1 and CpG ODN by CpG DNA-based "nano-cocoons" can induce considerable immune response, which in turn significantly prolongs the survival time of mice.
Light-Activated Hypoxia-Responsive Nanocarriers for Enhanced Anticancer Therapy
Creators: name: Wang, Chao
name: Feng, Peijian
name: Xiao, Xuanzhong
name: Sun, Wujin
name: Qian, Chenggen
name: Gu, Zhen
name: Chen, Yulei
name: Hu, Quanyin
name: Shen, Qun-Dong
name: Yu, Jicheng
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: A light-activated hypoxia-responsive conjugated polymer-based nanocarrier is developed for efficiently producing singlet oxygen ((1) O2 ) and inducing hypoxia to promote release of its cargoes in tumor cells, leading to enhanced antitumor efficacy. This dual-responsive nanocarrier provides an innovative design guideline for enhancing traditional photodynamic therapeutic efficacy integrated with a controlled drug-release modality.
Systematic mapping study on the relationship between well-being and pro-environmental consumer behaviour
Creators: name: Krumm, Laura
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This study aims to give an overview of the studies conducted at the intersection of pro-environmental consumer behaviour and well-being and to examine the state of the literature. In particular, the systematic map will answer the following research questions: RQ 1: What empirical evidence exists on the relationship between pro-environmental consumer behaviour and well-being? RQ 2: How are those concepts defined and measured in these studies? What methodologies are used? RQ 3: What are potential research gaps and which aspects of this relationship are still unresolved? Preregistration prior to data analysis
MPEC 2023-O85 : 2023 OQ2
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 OQ2

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Microneedles Integrated with Pancreatic Cells and Synthetic Glucose-Signal Amplifiers for Smart Insulin Delivery
Creators: name: Wang, Chao
name: Ye, Yanqi
name: Nguyen, Nhu-Y
name: Walker, Glenn M.
name: Yu, Jicheng
name: Gu, Zhen
name: Buse, John B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: An innovative microneedle (MN)-based cell therapy is developed for glucose-responsive regulation of the insulin secretion from exogenous pancreatic β-cells without implantation. One MN patch can quickly reduce the blood-sugar levels (BGLs) of chemically induced type-1 diabetic mice and stabilize BGLs at a reduced level for over 10 h.
A systematic review of COVID-19 chemoprophylaxis trials: aligning study designs and target populations to epidemiological need
Creators: name: Manoharan, Lakshmi
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Infectious Disease
subject: Medical Sciences
subject: Medicine and Health Sciences
subject: Medical Specialties
subject: Medical Microbiology
subject: FOS: Health sciences

description: systematic review of chemoprophylaxis trials
Self-deception and its interaction with introspection
Creators: name: Guarrasi, Guglielmo
Publisher: name: The University of St Andrews
Year: 2022
Subjects: Philosophy of mind
Introspection
Self-deception
Knowing ourselves
Consciousness
Irrationality

description: Self-deception is a tricky phenomenon to define, especially once we realise the further complications its interaction with introspection might lead to. In this dissertation I am to analyse these two phenomena to show their compatibility. In fact, I am going to argue that, although self-deception is an instance where introspection fails whereas the latter can cause the end of a self-deceive state, no problematic interference happens between them. To reach this aim I am going to rely on the studies conducted by Nisbett and Wilson on instances where subjects fail to introspect certain mental states or processes. I will use this to argue that it is then possible for a subject to fail to introspect certain aspects of their mental life and, thusly, self-deceive. In turn, I am going to show how having areas where introspecting gives us the wrong result is not a major problem as it is a characteristic it shares with sense perception, which is something we are used to rely on.
Bottlebrush Elastomers: A New Platform for Freestanding Electroactuation
Creators: name: Dobrynin, Andrey V.
name: Spontak, Richard J.
name: Li, Qiaoxi
name: Morgan, Benjamin J.
name: Armstrong, Daniel P.
name: Daniel, William F. M.
name: Sheiko, Sergei S.
name: Zhushma, Alexandr P.
name: Matyjaszewski, Krzysztof
name: Vatankhah-Varnoosfaderani, Mohammad
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Freestanding, single-component dielectric actuators are designed based on bottlebrush elastomers that enable giant reversible strokes at relatively low electric fields and altogether avoid preactuation mechanical manipulation. This materials design platform allows for independent tuning of actuator rigidity and elasticity over broad ranges without changing chemical composition, which opens new opportunities in soft-matter robotics.
Push button reproduction attempt of a research claim from Wetzel et al. (2016)
Creators: name: Somo, Angela
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: We selected the claim that there is a relationship between subgroups of narcissists and other personality traits. This reflects the following statement from the paper's abstract: “Members in the moderate narcissists - ADM subgroup (narcissistic admiration) showed the most adaptive characteristics while members in the moderate narcissists — ADM + RIV (narcissistic admiration + narcissistic rivalry) subgroup showed the most maladaptive characteristics”. The claim is tested by estimating a confirmatory factor analysis (CFA) model in the R package lavaan (Rosseel, 2012) for the adjustment indicator of interest and added class membership as dummy-coded variables. This was followed by regression of the trait of interest on the dummy-coded variables for class membership, which resulted in, for the moderate narcissists—ADM + RIV class the difference to the moderate narcissists—ADM class was larger with b = -0.44. This indicates that having a moderate level of narcissism characterized by using only strategies from the admiration pathway is related to the highest self-esteem level (see Table 5). All regression coefficients were significant at p < 0.05.
Quantized form factor shift in the presence of free electron laser radiation
Creators: name: Fratini, F.
name: Safari, L.
name: Hayrapetyan, A. G.
name: Jänkälä, K.
name: Amaro, P.
name: Santos, J. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In electron scattering, the target form factors contribute significantly to the diffraction pattern and carry information on the target electromagnetic charge distribution. Here we show that the presence of electromagnetic radiation, as intense as currently available in Free Electron Lasers, shifts the dependence of the target form factors by a quantity that depends on the number of photons absorbed or emitted by the electron as well as on the parameters of the electromagnetic radiation. As example, we show the impact of intense ultraviolet and soft X-ray radiation on elastic electron scattering by Ne-like Argon ion and by Xenon atom. We find that the shift brought by the radiation to the form factor is in the order of some percent. Our results may open up a new avenue to explore matter with the assistance of laser.
Probing Bilayer Grain Boundaries in Large-Area Graphene with Tip-Enhanced Raman Spectroscopy
Creators: name: Park, Kyoung-Duck
name: Raschke, Markus B.
name: Atkin, Joanna M.
name: Lee, Young Hee
name: Jeong, Mun Seok
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: The bilayer grain boundaries (GBs) in chemical-vapor-deposition-grown large-area graphene are identified using multispectral tip-enhanced Raman imaging with 18 nm spatial resolution. The misorientation angle of the bilayer GBs is determined from a quantitative analysis of the phonon-scattering properties associated with the modified electronic structure.
Sex differences in the processing of personally relevant faces: ERP evidence
Creators: name: Zochowska, Anna
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Personality and Social Contexts
subject: Social Psychology
subject: Cognition and Perception
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: closeness
subject: emotion
subject: ERP
subject: familiarity
subject: IOS Scale
subject: saliency
subject: self
subject: sex

description: Converging lines of evidence indicate the prioritized processing of self-referential information. However, the impact of sex on the self-preference effect has rarely been investigated. The aim of this study was to investigate sex differences in the processing of two types of personally relevant faces: the self-face and highly familiar and subjectively significant non-self faces (e.g. a best friend’s or partner’s face). They were directly compared to emotionally positive (happy) and neutral faces. Participants were tasked with the simple detection of presented faces. Analyses of early (N170) and late (P3, LPP) components of event-related potentials (ERPs) revealed significant sex differences. Amplitudes of N170 were more negative in the right than in the left hemisphere of females, but not males. In males, P3 and LPP to the self- and close-other’s face were similar. However, only the self-face produced a significantly higher P3 and LPP than happy and neutral faces. In turn, P3 and LPP amplitudes to the self-face in females were significantly higher than to a close-other’s, happy, and neutral faces. An analogous effect was observed for the close-other’s face. In sum, our findings provide evidence indicating that females are more precise in discriminating faces and that self-face prioritization seems to be weaker in males than in females. Thus, this weaker self-preference and positive correlation between subjective measures of the closeness and objective measures of brain activity (P3 amplitude) associated with the processing of a close-other’s face may be viewed as an indicator of the more elaborated concept of extended self in males.
Real and pseudoreal forms of D=4 complex Euclidean (super)algebras and super-Poincare / super-Euclidean r-matrices
Creators: name: Borowiec, Andrzej
name: Lukierski, Jerzy
name: Tolstoy, Valerij N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide the classification of real forms of complex D=4 Euclidean algebra $\mathcalε(4; \mathbb{C}) = \mathfrak{o}(4;\mathbb{C})) \ltimes \mathbf{T}_{\mathbb{C}}^4$ as well as (pseudo)real forms of complex D=4 Euclidean superalgebras $\mathcalε(4|N; \mathbb{C})$ for N=1,2. Further we present our results: N=1 and N=2 supersymmetric D=4 Poincare and Euclidean r-matrices obtained by using D= 4 Poincare r-matrices provided by Zakrzewski [1]. For N=2 we shall consider the general superalgebras with two central charges.
description: 20 pages, presented at XXIII-th International Conference on Integrable Systems and Quantum Symmetries, Prague, June 2015; to be published in JPhysA Conference Series, ed. C. Burdik, S.Posta and O.Navratil
Designing Intelligent Systems for Online Education: Open Challenges and Future Directions
Creators: name: Dessì, Danilo
name: Käser, Tanja
name: Marras, Mirko
name: Popescu, Elvira
name: Sack, Harald
Publisher: name: Aachen, Germany : RWTH Aachen
Year: 2021
Subjects: subject: Education
subject: E-Learning
subject: MOOC
subject: Online Courses
subject: Learning Analytics
subject: Machine Learning
subject: Data Mining
subject: Konferenzschrift
subject: 020
subject: 004

description: The design and delivering of platforms for online education is fostering increasingly intense research. Scaling up education online brings new emerging needs related with hardly manageable classes, overwhelming content alternatives, and academic dishonesty while interacting remotely, as examples. However, with the impressive progress of the data mining and machine learning fields, combined with the large amounts of learning-related data and high-performance computing, it has been possible to gain a deeper understanding of the nature of learning and teaching online. Methods at the analytical and algorithmic levels are constantly being developed and hybrid approaches are receiving an increasing attention. Recent methods are analyzing not only the online traces left by students a posteriori, but also the extent to which this data can be turned into actionable insights and models, to support the above needs in a computationally efficient, adaptive and timely way. In this paper, we present relevant open challenges lying at the intersection between the machine learning and educational communities, that need to be addressed to further develop the field of intelligent systems for online education. Several areas of research in this field are identified, such as data availability and sharing, time-wise and multi-modal data modelling, generalizability, fairness, explainability, interpretability, privacy, and ethics behind models delivered for supporting education. Practical challenges and recommendations for possible research directions are provided for each of them, paving the way for future advances in this field.
Incoherent transport in clean quantum critical metals
Creators: name: Davison, Richard A.
name: Goutéraux, Blaise
name: Hartnoll, Sean A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a clean quantum critical metal, and in the absence of umklapp, most d.c. conductivities are formally infinite due to momentum conservation. However, there is a particular combination of the charge and heat currents which has a finite, universal conductivity. In this paper, we describe the physics of this conductivity $σ_Q$ in quantum critical metals obtained by charge doping a strongly interacting conformal field theory. We show that it satisfies an Einstein relation and controls the diffusivity of a conserved charge in the metal. We compute $σ_Q$ in a class of theories with holographic gravitational duals. Finally, we show how the temperature scaling of $σ_Q$ depends on certain critical exponents characterizing the quantum critical metal. The holographic results are found to be reproduced by the scaling analysis, with the charge density operator becoming marginal in the emergent low energy quantum critical theory.
description: v1: 1 + 16 pages + references
Sub-Riemannian Ricci curvatures and universal diameter bounds for 3-Sasakian manifolds
Creators: name: Rizzi, Luca
name: Silveira, Pavel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Metric Geometry (math.MG)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 53C17, 53C21, 53C22, 53C25, 53C26

description: For a fat sub-Riemannian structure, we introduce three canonical Ricci curvatures in the sense of Agrachev-Zelenko-Li. Under appropriate bounds we prove comparison theorems for conjugate lengths, Bonnet-Myers type results and Laplacian comparison theorems for the intrinsic sub-Laplacian. As an application, we consider the sub-Riemannian structure of $3$-Sasakian manifolds, for which we provide explicit curvature formulas. We prove that any complete $3$-Sasakian structure of dimension $4d+3$, with $d>1$, has sub-Riemannian diameter bounded by $π$. When $d=1$, a similar statement holds under additional Ricci bounds. These results are sharp for the natural sub-Riemannian structure on $\mathbb{S}^{4d+3}$ of the quaternionic Hopf fibrations: \begin{equation*} \mathbb{S}^3 \hookrightarrow \mathbb{S}^{4d+3} \to \mathbb{HP}^d, \end{equation*} whose exact sub-Riemannian diameter is $π$, for all $d \geq 1$.
description: 34 pages, v2: fixed and clarified the proof of Theorem 7 and some typos, v3: final version, to appear on Journal of the Institute of Mathematics of Jussieu
Thrombin-Responsive Transcutaneous Patch for Auto-Anticoagulant Regulation
Creators: name: Hanne, Nicholas J.
name: Wang, Chao
name: Zhu, Yong
name: Cole, Jacqueline H.
name: Qian, Chenggen
name: Zhang, Yuqi
name: Xin, Hongliang
name: Wang, Jinqiang
name: Gallippi, Caterina M.
name: Yu, Jicheng
name: Cui, Zheng
name: Gu, Zhen
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: A thrombin-responsive closed-loop patch is developed for prolonged heparin delivery in a feedback-controlled manner. This microneedle-based patch can sense activated thrombin and subsequently releases heparin to prevent coagulation in the blood flow. This "smart" heparin patch can be transcutaneously inserted into skin without drug leakage and can sustainably regulate blood coagulation in response to thrombin.
Detecting Cross-Language Plagiarism using Open Knowledge Graphs
Creators: name: Stegmüller, Johannes
name: Bauer-Marquart, Fabian
name: Meuschke, Norman
name: Ruas, Terry
name: Schubotz, Moritz
name: Gipp, Bela
Publisher: name: Aachen, Germany : RWTH Aachen
Year: 2021
Subjects: subject: Cross-language plagiarism detection
subject: knowledge graphs
subject: Wikidata
subject: Konferenzschrift
subject: 020
subject: 004

description: Identifying cross-language plagiarism is challenging, especially for distant language pairs and sense-for-sense translations. We introduce the new multilingual retrieval model Cross-Language Ontology-Based Similarity Analysis (CL-OSA) for this task. CL-OSA represents documents as entity vectors obtained from the open knowledge graph Wikidata. Opposed to other methods, CL-OSA does not require computationally expensive machine translation, nor pre-training using comparable or parallel corpora. It reliably disambiguates homonyms and scales to allow its application toWebscale document collections. We show that CL-OSA outperforms state-of-the-art methods for retrieving candidate documents from five large, topically diverse test corpora that include distant language pairs like Japanese-English. For identifying cross-language plagiarism at the character level, CL-OSA primarily improves the detection of sense-for-sense translations. For these challenging cases, CL-OSA’s performance in terms of the well-established PlagDet score exceeds that of the best competitor by more than factor two. The code and data of our study are openly available.
Meta-analysis of the association between financial motives for gambling and gambling outcomes
Creators: name: Tabri, Nassim
name: Clark, Luke
name: Xuereb, Silas
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: financial motives
subject: gambling
subject: meta-analysis
subject: problem gambling

description: Please see PDF titled "Summary of Literature Search Results and Data Analysis Plan (June 9 2020)" in the supplemental files section. A copy of the file is also located in the OSF page for the project (see folder titled "Preregistration").
Signalling Value of Medical Treatments
Creators: name: de Barra, Mícheál
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: A previous study demonstrated that people are more inclined to provide care to individuals who undergo treatment. In this study, we apply the theory to antibiotic stewardship measures. The .pdf file attached provides the full preregistration information.
The multiplicative eigenvalue problem and deformed quantum cohomology
Creators: name: Belkale, Prakash
name: Kumar, Shrawan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Abstract We construct deformations of the small quantum cohomology rings of homogeneous spaces G/P, and obtain an irredundant set of inequalities determining the multiplicative eigen polytope for the compact form K of G.
Contact angle of sessile drops in Lennard-Jones systems
Creators: name: Becker, Stefan
name: Urbassek, Herbert M.
name: Horsch, Martin
name: Hasse, Hans
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Molecular dynamics simulation is used for studying the contact angle of nanoscale sessile drops on a planar solid wall in a system interacting via the truncated and shifted Lennard-Jones potential. The entire range between total wetting and dewetting is investigated by varying the solid--fluid dispersive interaction energy. The temperature is varied between the triple point and the critical temperature. A correlation is obtained for the contact angle in dependence of the temperature and the dispersive interaction energy. Size effects are studied by varying the number of fluid particles at otherwise constant conditions, using up to 150 000 particles. For particle numbers below 10 000, a decrease of the contact angle is found. This is attributed to a dependence of the solid-liquid surface tension on the droplet size. A convergence to a constant contact angle is observed for larger system sizes. The influence of the wall model is studied by varying the density of the wall. The effective solid-fluid dispersive interaction energy at a contact angle of 90 degrees is found to be independent of temperature and to decrease linearly with the solid density. A correlation is developed which describes the contact angle as a function of the dispersive interaction, the temperature and the solid density. The density profile of the sessile drop and the surrounding vapor phase is described by a correlation combining a sigmoidal function and an oscillation term.
Representations of the Northern Ireland 'Troubles' within the British media, 1973-1997
Creators: name: Doughty, Roseanna Jane
Publisher: name: The University of Edinburgh
Year: 2020
Subjects: British media
The ‘Troubles’
Northern Ireland
1973-1997
media biases

description: This thesis investigates British media representations of the conflict in Northern Ireland between 1973 and 1997, and how these affected the lived experiences of the Irish in Britain over this period. The ‘Troubles’ dominated headlines from the outbreak of communal violence in 1968. As the main source of information on Northern Ireland for most British people, the press and broadcast media were central to how the conflict was reported on and understood in Britain. The British press and broadcast media offered multifaceted and detailed coverage of the conflict in Northern Ireland, contrary to the assumptions made by various scholars, and the belief of many Irish people living in Britain at the time. The prevailing view amongst the Irish in Britain was that the media merely regurgitated the official line, producing one-dimensional coverage of Northern Ireland. Irish political and community activists in Britain from the 1980s campaigned against the media’s allegedly oversimplified and biased reporting, which they believed played a significant role in the discrimination and harassment experienced by the Irish, especially as a result of the IRA bombing campaign in English cities. These activists were correct in maintaining that the media contributed to the hostile environment experienced by many Irish people living in Britain throughout the ‘Troubles’. Nevertheless, this does not mean that the press and broadcasting bodies failed to engage with the complexities of the conflict in Northern Ireland or indeed provide a critical view of the role of the British state. This thesis presents the findings of an in-depth analysis of a broad and representative range of newspapers and television current affairs programmes. Far from simply parroting the official line, the media resisted efforts by the state to dictate how the ‘Troubles’ were reported. The media provided far more nuanced, independent-minded and analytical coverage of the conflict than has been acknowledged.
Shear-induced rigidity of frictional particles: Analysis of emergent order in stress space
Creators: name: Sarkar, Sumantra
name: Bi, Dapeng
name: Zhang, Jie
name: Ren, Jie
name: Behringer, R. P.
name: Chakraborty, Bulbul
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Solids are distinguished from fluids by their ability to resist shear. In traditional solids, the resistance to shear is associated with the emergence of broken translational symmetry as exhibited by a non-uniform density pattern, which results from either minimizing the energy cost or maximizing the entropy or both. In this work, we focus on a class of systems, where this paradigm is challenged. We show that shear-driven jamming in dry granular materials is a collective process controlled solely by the constraints of mechanical equilibrium. We argue that these constraints lead to a broken translational symmetry in a dual space that encodes the statistics of contact forces and the topology of the contact network. The shear-jamming transition is marked by the appearance of this broken symmetry. We extend our earlier work, by comparing and contrasting real space measures of rheology with those obtained from the dual space. We investigate the structure and behavior of the dual space as the system evolves through the rigidity transition in two different shear protocols. We analyze the robustness of the shear-jamming scenario with respect to protocol and packing fraction, and demonstrate that it is possible to define a protocol-independent order parameter in this dual space, which signals the onset of rigidity.
description: 14 pages, 17 figures
Towards a Representation of Temporal Data in Archival Records: Use Cases and Requirements
Creators: name: Bruns, Oleksandra
name: Tietz, Tabea
name: Vafaie, Mahsa
name: Dessì, Danilo
name: Sack, Harald
Publisher: name: Aachen, Germany : RWTH Aachen
Year: 2021
Subjects: subject: Knowledge Graphs
subject: Archives
subject: Temporal Representation
subject: Konferenzschrift
subject: 004
subject: 020

description: Archival records are essential sources of information for historians and digital humanists to understand history. For modern information systems they are often analysed and integrated into Knowledge Graphs for better access, interoperability and re-use. However, due to restrictions of the representation of RDF predicates temporal data within archival records is a challenge to model. This position paper explains requirements for modeling temporal data in archival records based on running research projects in which archival records are analysed and integrated in Knowledge Graphs for research and exploration.
Pointwise decay for the Maxwell field on black hole space–times
Creators: name: Metcalfe, Jason
name: Tohaneanu, Mihai
name: Tataru, Daniel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Abstract In this article we study the pointwise decay properties of solutions to the Maxwell system on a class of nonstationary asymptotically flat backgrounds in three space dimensions. Under the assumption that uniform energy bounds and a weak form of local energy decay hold forward in time, we establish peeling estimates, as well as a t−4 rate of decay on compact regions for all the components of the Maxwell tensor.
Architects in Europe: Models of Professionalisation and Potential Implications for the Planning Profession
Creators: name: Mieg, Harald A.
name: Oevermann, Heike
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: 550 Geowissenschaften

description: Data from the Architects’ Council of Europe (ACE) show a very inhomogeneous distribution of architects among European countries, for example, high numbers of architects in Italy and Germany versus low numbers in the UK and France. These discrepancies cannot be explained by differences in the domestic construction markets. This paper reviews models of professionalisation to explain the heterogeneity among European architects and shows potential implications for the planning profession in Europe. We analyse the 2018 ACE data for the five European countries with the strongest labour markets for architects. Our findings led to three main conclusions: Firstly, such models of professionalisation add to an understanding of statistical data on architects in Europe. Secondly, a better understanding of the statistical data requires more than a single theory. Thirdly, as to the planning profession, the standard process model of professionalisation may work well for the UK, but not for the other European countries.
Assessing the Added Value of Dynamical Downscaling Using the Standardized Precipitation Index
Creators: name: Spero, Tanya L.
name: Talgo, Kevin D.
name: Nolte, Christopher G.
name: Bowden, Jared H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: In this study, the Standardized Precipitation Index (SPI) is used to ascertain the added value of dynamical downscaling over the contiguous United States. WRF is used as a regional climate model (RCM) to dynamically downscale reanalysis fields to compare values of SPI over drought timescales that have implications for agriculture and water resources planning. The regional climate generated by WRF has the largest improvement over reanalysis for SPI correlation with observations as the drought timescale increases. This suggests that dynamically downscaled fields may be more reliable than larger-scale fields for water resource applications (e.g., water storage within reservoirs). WRF improves the timing and intensity of moderate to extreme wet and dry periods, even in regions with homogenous terrain. This study also examines changes in SPI from the extreme drought of 1988 and three “drought busting” tropical storms. Each of those events illustrates the importance of using downscaling to resolve the spatial extent of droughts. The analysis of the “drought busting” tropical storms demonstrates that while the impact of these storms on ending prolonged droughts is improved by the RCM relative to the reanalysis, it remains underestimated. These results illustrate the importance and some limitations of using RCMs to project drought.
A Note on Parameter Estimation for Misspecified Regression Models with Heteroskedastic Errors
Creators: name: Long, James P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Misspecified models often provide useful information about the true data generating distribution. For example, if $y$ is a non-linear function of $x$ the least squares estimator $\hatβ$ is an estimate of $β$, the slope of the best linear approximation to the non-linear function. Motivated by problems in astronomy, we study how to incorporate observation measurement error variances into fitting parameters of misspecified models. Our asymptotic theory focuses on the particular case of linear regression where often weighted least squares procedures are used to account for heteroskedasticity. We find that when the response is a non-linear function of the independent variable, the standard procedure of weighting by the inverse of the observation variances can be counter-productive. In particular, ordinary least squares may have lower asymptotic variance. We construct an adaptive estimator which has lower asymptotic variance than either OLS or standard WLS. We demonstrate our theory in a small simulation and apply these ideas to the problem of estimating the period of a periodic function using a sinusoidal model.
description: 28 pages, 4 figures, 2 tables