cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Nonclassical correlations in continuous-variable non-Gaussian Werner states
Creators: name: Tatham, Richard
name: Mišta, Ladislav
name: Adesso, Gerardo
name: Korolkova, Natalia
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study nonclassical correlations beyond entanglement in a family of two-mode non-Gaussian states which represent the continuous-variable counterpart of two-qubit Werner states. We evaluate quantum discord and other quantumness measures obtaining exact analytical results in special instances, and upper and lower bounds in the general case. Non-Gaussian measurements such as photon counting are in general necessary to solve the optimization in the definition of quantum discord, whereas Gaussian measurements are strictly suboptimal for the considered states. The gap between Gaussian and optimal non-Gaussian conditional entropy is found to be proportional to a measure of non-Gaussianity in the regime of low squeezing, for a subclass of continuous-variable Werner states. We further study an example of a non-Gaussian state which is positive under partial transposition, and whose nonclassical correlations stay finite and small even for infinite squeezing. Our results pave the way to a systematic exploration of the interplay between nonclassicality and non-Gaussianity in continuous-variable systems, in order to gain a deeper understanding of -and to draw a bigger advantage from- these two important resources for quantum technology.
description: References added, typos corrected
BAYESIAN OPTIMIZATION FOR DESIGN PARAMETERS OF AUTOINJECTORS.pdf
Creators: name: Parikh, Heliben Naimeshkum
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: Numerical modelling and mechanical characterisation
Mechanical engineering not elsewhere classified

description: The document describes the computational framework to optimize spring-driven Autoinjectors. It involves Bayesian Optimization for efficient and cost-effective design of Autoinjectors.
Two-step reinforcement learning for model-free redesign of nonlinear optimal regulator
Creators: name: Minami, Mei
name: Masumoto, Yuka
name: Okawa, Yoshihiro
name: Sasaki, Tomotake
name: Hori, Yutaka
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In many practical control applications, the performance level of a closed-loop system degrades over time due to the change of plant characteristics. Thus, there is a strong need for redesigning a controller without going through the system modeling process, which is often difficult for closed-loop systems. Reinforcement learning (RL) is one of the promising approaches that enable model-free redesign of optimal controllers for nonlinear dynamical systems based only on the measurement of the closed-loop system. However, the learning process of RL usually requires a considerable number of trial-and-error experiments using the poorly controlled system that may accumulate wear on the plant. To overcome this limitation, we propose a model-free two-step design approach that improves the transient learning performance of RL in an optimal regulator redesign problem for unknown nonlinear systems. Specifically, we first design a linear control law that attains some degree of control performance in a model-free manner, and then, train the nonlinear optimal control law with online RL by using the designed linear control law in parallel. We introduce an offline RL algorithm for the design of the linear control law and theoretically guarantee its convergence to the LQR controller under mild assumptions. Numerical simulations show that the proposed approach improves the transient learning performance and efficiency in hyperparameter tuning of RL.
Chiral Symmetry Breaking and External Fields in the Kuperstein-Sonnenschein Model
Creators: name: Alam, M. Sohaib
name: Kaplunovsky, Vadim S.
name: Kundu, Arnab
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A novel holographic model of chiral symmetry breaking has been proposed by Kuperstein and Sonnenschein by embedding non-supersymmetric probe D7 and anti-D7 branes in the Klebanov-Witten background. We study the dynamics of the probe flavours in this model in the presence of finite temperature and a constant electromagnetic field. In keeping with the weakly coupled field theory intuition, we find the magnetic field promotes spontaneous breaking of chiral symmetry whereas the electric field restores it. The former effect is universally known as the "magnetic catalysis" in chiral symmetry breaking. In the presence of an electric field such a condensation is inhibited and a current flows. Thus we are faced with a steady-state situation rather than a system in equilibrium. We conjecture a definition of thermodynamic free energy for this steady-state phase and using this proposal we study the detailed phase structure when both electric and magnetic fields are present in two representative configurations: mutually perpendicular and parallel.
description: 50 pages, multiple figures, minor typo fixed, references added
Robust learning with anytime-guaranteed feedback
Creators: name: Holland, Matthew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Under data distributions which may be heavy-tailed, many stochastic gradient-based learning algorithms are driven by feedback queried at points with almost no performance guarantees on their own. Here we explore a modified "anytime online-to-batch" mechanism which for smooth objectives admits high-probability error bounds while requiring only lower-order moment bounds on the stochastic gradients. Using this conversion, we can derive a wide variety of "anytime robust" procedures, for which the task of performance analysis can be effectively reduced to regret control, meaning that existing regret bounds (for the bounded gradient case) can be robustified and leveraged in a straightforward manner. As a direct takeaway, we obtain an easily implemented stochastic gradient-based algorithm for which all queried points formally enjoy sub-Gaussian error bounds, and in practice show noteworthy gains on real-world data applications.
A multidisciplinary study, unveiling lipophilic drug block of hERG1
Creators: name: Kudaibergenova, Meruyert
Publisher: name: Science
Year: 2022
Subjects: subject: drug block
subject: hERG
subject: arrhythmicity
subject: molecular simulations
subject: Long-QT
subject: Education--Sciences
subject: Bioinformatics
subject: FOS: Computer and information sciences
subject: Biostatistics
subject: Biology--Molecular
subject: Biophysics
subject: Biophysics--Medical
subject: Pharmacology
subject: Biochemistry
subject: Chemistry--Pharmaceutical

description: The human-ether-a-go-go-related gene (hERG) potassium channels conducts the rapid delayed rectifier current in cardiomyocytes, crucial for timely repolarization of the cardiac action potential. hERG is of great medical and pharmaceutical concern as the channel is susceptible to block by structurally and therapeutically diverse drugs. The block comprformatomises hERG function in the action potential duration in ventricular cardiomyocytes, causing acquired long QT syndrome, hallmark of the deadly Torsade de Pointe. As such, deciphering molecular underpinnings and mechanisms of drug block is essential in understanding and preventing dangerous side effects of drugs and aids in the design of new and safer therapeutics. The exact mechanisms of drug block remained elusive as the structure of the channel was not available. It was however, commonly accepted that all drugs bind only directly to the central cavity, thereby plugging the normal flow of ions through the channel. This thesis elucidates the molecular underpinnings of a drug block, specifically we explore the lipophilic binding route and unique structure-function features of the channel by linking computational approaches with experimental mutagenesis and electrophysiology. We gain insight into conformational changes within hERG at the molecular level and firmly establish a presence of unique lipophilic route, making the channel susceptible to wide range of drugs. Our findings suggest the dynamic nature of the internal cavity and fine interplay between aromatic cassette in S5 and S6, (M651-F656-F557) determine the state dependant binding of drugs and availability of the lipophilic route or “fenestration windows”. For a long time, the lipophilic route of drug binding has been dismissed and overlooked until the availability of the new structure. Further, we demonstrate novel structural features in the hERG structure via the molecular dynamic simulations and electrophysiology, notably the presence of omega current and formation of salt bridges with wide water crevices in the VSD as predicted in plethora of biophysical experiments. Overall, the new knowledge resulting from my doctoral thesis provides insight into the fundamental properties of drug block of hERG and have clinical and pharmaceutical implications, helping the development of better therapeutics of the future and improving prediction of proarrhythmic propensity.
title: OER Workshop Series: Introduction to Open Educational Resources
title: Introduction to OER
titleType: AlternativeTitle
Creators: name: Adams, Sarah
name: Cawthorn, Kate
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
open educational resources
OER
copyright
Creative Commons Licence
open licensing
open content

description: Are you curious about integrating Open Educational Resources (OERs) into your teaching practice, but don’t know where to start? This session is intended for those new to OER and will provide learners with a basic introduction and a foundation for future learning. By the end of this workshop, learners will be able to: Provide a definition of open educational resources (OER); Explain the difference between OER and other free educational materials; Understand ways to incorporate OER into teaching and learning; Describe the challenges and benefits of using OER in class; Assess their teaching materials for the potential to release as OER; List 3 considerations to keep in mind before adopting an OER. OER Workshop Series developed by Christie Hurrell, Sarah Adams, Alexandra Alisauskas, Rowena Johnson, and Kate Cawthorn.
Anomalous infrared spectra of hybridized phonons in type-I clathrate Ba$_8$Ga$_{16}$Ge$_{30}$
Creators: name: Iwamoto, K.
name: Kushibiki, S.
name: Honda, H.
name: Kajitani, S.
name: Mori, T.
name: Matsumoto, H.
name: Toyota, N.
name: Suekuni, K.
name: Avila, M. A.
name: Takabatake, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The optical conductivity spectra of the rattling phonons in the clathrate Ba$_8$Ga$_{16}$Ge$_{30}$ are investigated in detail by use of the terahertz time-domain spectroscopy. The experiment has revealed that the lowest-lying vibrational mode of a Ba(2)$^{2+}$ ion consists of a sharp Lorentzian peak at 1.2 THz superimposed on a broad tail weighted in the lower frequency regime around 1.0 THz. With decreasing temperature, an unexpected linewidth broadening of the phonon peak is observed, together with monotonic softening of the phonon peak and the enhancement of the tail structure. These observed anomalies are discussed in terms of impurity scattering effects on the hybridized phonon system of rattling and acoustic phonons.
description: Submitted to JPSJ
Semi-implicit methods for advection equations with explicit forms of numerical solution
Creators: name: Frolkovič, Peter
name: Krišková, Svetlana
name: Rohová, Michaela
name: Žeravý, Michal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a parametric family of semi-implicit second order accurate numerical methods for non-conservative and conservative advection equation for which the numerical solutions can be obtained in a fixed number of forward and backward alternating substitutions. The methods use a novel combination of implicit and explicit time discretizations for one-dimensional case and the Strang splitting method in several dimensional case. The methods are described for advection equations with a continuous variable velocity that can change its sign inside of computational domain. The methods are unconditionally stable in the non-conservative case for variable velocity and for variable numerical parameter. Several numerical experiments confirm the advantages of presented methods including an involvement of differential programming to find optimized values of the variable numerical parameter.
Wave equations on non-smooth space-times
Creators: name: Hoermann, Guenther
name: Kunzinger, Michael
name: Steinbauer, Roland
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 58J45 (Primary) 35L05, 35L15, 35D99, 46F30 (Secondary)

description: We consider wave equations on Lorentzian manifolds in case of low regularity. We first extend the classical solution theory to prove global unique solvability of the Cauchy problem for distributional data and right hand side on smooth globally hyperbolic space-times. Then we turn to the case where the metric is non-smooth and present a local as well as a global existence and uniqueness result for a large class of Lorentzian manifolds with a weakly singular, locally bounded metric in Colombeau's algebra of generalized functions.
description: 25 pages, final version
Orthogonal polynomials with periodically modulated recurrence coefficients in the Jordan block case II
Creators: name: Świderski, Grzegorz
name: Trojan, Bartosz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 47B36 (Primary) 42C05 (Secondary)

description: We study Jacobi matrices with $N$-periodically modulated recurrence coefficients when the sequence of $N$-step transfer matrices is convergent to a non-trivial Jordan block. In particular, we describe asymptotic behavior of their generalized eigenvectors, we prove convergence of $N$-shifted Turán determinants as well as of the Christoffel--Darboux kernel on the diagonal. Finally, by means of subordinacy theory, we identify their absolutely continuous spectrum as well as their essential spectrum. By quantifying the speed of convergence of transfer matrices we were able to cover a large class of Jacobi matrices. In particular, those related to generators of birth-death processes.
description: 50 pages
Consistent assignment of quantum probabilities
Creators: name: Patra, Manas K.
name: van der Meyden, Ron
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We pose and solve a problem concerning consistent assignment of quantum probabilities to a set of bases associated with maximal projective measurements. We show that our solution is optimal. We also consider some consequences of the main theorem in the paper in conjunction with Gleason's theorem. Some potential applications to state tomography and probabilistic quantum secret-sharing scheme are discussed.
description: 19 pages
Functional clustering via multivariate clustering
Creators: name: Pulido, Belén
name: Franco-Pereira, Alba María
name: Lillo, Rosa Elvira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Clustering techniques applied to multivariate data are a very useful tool in Statistics and have been fully studied in the literature. Nevertheless, these clustering methodologies are less well known when dealing with functional data. Our proposal consists of introducing a clustering procedure for functional data using the very well known techniques for clustering multivariate data. The idea is to reduce a functional data problem to a multivariate data problem by applying the epigraph and the hypograph indexes to the original data and to its first and second derivatives. All the information given by the functional data is therefore transformed to the multivariate context, being sufficiently informative for the usual multivariate clustering techniques to be efficient. The performance of this new methodology is evaluated through a simulation study and it is also illustrated through real data sets.
Electron transport in wide energy gap semiconductors
Creators: name: Cheekoori, Reddiprasad
Publisher: name: University of British Columbia
Year: 2012

description: The dependence of the low-field electron drift mobility on the crystal temperature is determined for a number of wide energy gap semiconductors of interest. The materials considered include gallium nitride, aluminium nitride, indium nitride, and zinc oxide; while indium nitride is not a wide energy gap semiconductor in of itself, alloys of indium nitride with gallium nitride are. For the bulk results, it is found that indium nitride exhibits the highest low-field electron drift mobility while aluminium nitride exhibits the lowest low-field electron drift mobility. This is related to the small effective mass of electrons in indium nitride and the large effective mass of electrons in aluminium nitride. For the case of electrons confined within a two-dimensional electron gas, it is found that the low-field electron drift mobility exceeds that corresponding to the bulk material. This is due to the enhanced screening that electron concentrations exceeding the bulk ionized impurity concentrations level offer, i.e., surplus electrons act to further screen the ionized impurities; in a two-dimensional electron gas, the electron concentrations may far exceed those found in a bulk material. Recommendations for further study are suggested.
The catalytic role of beta effect in barotropization processes
Creators: name: Venaille, Antoine
name: Vallis, Geoffrey K.
name: Griffies, S. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The vertical structure of freely evolving, continuously stratified, quasi-geostrophic flow is investigated. We predict the final state organization, and in particular its vertical structure, using statistical mechanics and these predictions are tested against numerical simulations. The key role played by conservation laws in each layer, including the fine-grained enstrophy, is discussed. In general, the conservation laws, and in particular that enstrophy is conserved layer-wise, prevent complete barotropization, i.e., the tendency to reach the gravest vertical mode. The peculiar role of the $β$-effect, i.e. of the existence of planetary vorticity gradients, is discussed. In particular, it is shown that increasing $β$ increases the tendency toward barotropization through turbulent stirring. The effectiveness of barotropisation may be partly parameterized using the Rhines scale $2πE_{0}^{1/4}/β^{1/2}$. As this parameter decreases (beta increases) then barotropization can progress further, because the beta term provides enstrophy to each layer.
MOESM3 of Exploring the contributions of two glutamate decarboxylase isozymes in Lactobacillus brevis to acid resistance and Îł-aminobutyric acid production
Creators: name: Lyu, Changjiang
name: Zhao, Weirui
name: Peng, Chunlong
name: Hu, Sheng
name: Fang, Hui
name: Hua, Yujiao
name: Yao, Shanjing
name: Huang, Jun
name: Mei, Lehe
Publisher: name: figshare
Year: 2018
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Mental Health

description: Additional file 3. Figure S3. Nisin-induced overexpression of GadB and GadC in L. brevis. (A): The nisin-controlled gene expression system consists of two compatible replicons: an essential helper plasmid, pNZ9530, encoding the nisRK regulatory genes, and the expression plasmid pNZ8148, bearing the nisA promoter (PnisA). The gadB, gadBC or gadCB segments were under control of the nisin-inducible PnisA. (B): SDS-PAGE analysis of overexpression of GAD proteins. Cells were harvested after 6 hours of induction. Lane M, protein size markers (kDa). Lane 1, L. brevis 9530: pNZ8148-gadCB; Lane 2, L. brevis 9530: pNZ8148-gadBC; Lane 3, L. brevis 9530: pNZ8148-gadB; Lane 4, L. brevis CK.
Identity Method for the Determination of the Moments of Multiplicity Distributions
Creators: name: Rustamov, A.
name: Gorenstein, M. I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recently the identity method was proposed to calculate second moments of the multiplicity distributions from event-by-event measurements in the presence of the effects of incomplete particle identification. In this paper the method is extended for higher moments. The moments of smeared multiplicity distributions are calculated using single-particle identity variables. The problem of finding the moments of the multiplicity distributions is reduced to solving of a system of linear equations.
Jammed Keplerian gas leads to the formation and disappearance of spiral arms in a coupled map lattice for astronomical objects
Creators: name: Nozawa, Erika
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The formation and disappearance of spiral arms are studied by focusing on jammed Keplerian gas in a coupled map lattice (CML) with a minimal set of procedures for simulating diverse patterns in astronomical objects. The CML shows that a spiral arm is a type of traffic jam, and its motion is governed by both a gas inflow into and outflow from the jam. In particular, we present a new approach to simply and directly evaluating the disappearance of spiral arms, called "light-in and heavy-out". It is based on the gas flow rate difference between the light inflow and heavy outflow leading to the disappearance of traffic jams. Furthermore, we propose an approximate formula for the remaining lifetime of spiral arms, which is immediately derived from the "light-in and heavy-out" approach without calculating their pattern speeds as in conventional differential rotation. The proposed formula is successfully applied to the CML simulations.
description: 13 pages, 3 figures
Statistical Tests of Noise and Harmony in Dark Matter Modulation Signals
Creators: name: Chang, Spencer
name: Pradler, Josef
name: Yavin, Itay
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The aim of the current work is a detailed time-series analysis of the data from Dark Matter direct detection experiments as well as related datasets. We examine recent claims that the cosmic ray muon flux can be responsible for generating the modulation signals seen by DAMA and, more recently, by the CoGeNT collaboration. We find no evidence for such a strong correlation and show that the two phenomena differ in their power spectrum, phase, and possibly in amplitude. In addition, we investigate in more detail, the time dependence of Dark Matter scattering. Since the signal is periodic with period of a year (due to the Earth's motion around the Sun), the presence of higher harmonics can be expected. We show that the higher harmonics generically have similar phase to the annual modulation and the biannual mode in particular could provide another handle in searching for Dark Matter in the laboratory.
description: 16 pages, 14 figures; minor correction to Fig. 11, conclusions unchanged; journal version
Worldtube excision method for intermediate-mass-ratio inspirals: scalar-field toy model
Creators: name: Dhesi, Mekhi
name: Rüter, Hannes R.
name: Pound, Adam
name: Barack, Leor
name: Pfeiffer, Harald P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The computational cost of inspiral and merger simulations for black-hole binaries increases in inverse proportion to the square of the mass ratio $q:=m_2/m_1\leq 1$. One factor of $q$ comes from the number of orbital cycles, which is proportional to $1/q$, and another is associated with the required number of time steps per orbit, constrained (via the Courant-Friedrich-Lewy condition) by the need to resolve the two disparate length scales. This problematic scaling makes simulations progressively less tractable at smaller $q$. Here we propose and explore a method for alleviating the scale disparity in simulations with mass ratios in the intermediate astrophysical range ($10^{-4} \lesssim q\lesssim 10^{-2}$), where purely perturbative methods may not be adequate. A region of radius much larger than $m_2$ around the smaller object is excised from the numerical domain, and replaced with an analytical model approximating a tidally deformed black hole. The analytical model involves certain a priori unknown parameters, associated with unknown bits of physics together with gauge-adjustment terms; these are dynamically determined by matching to the numerical solution outside the excision region. In this paper we develop the basic idea and apply it to a toy model of a scalar charge in a circular geodesic orbit around a Schwarzschild black hole, solving for the massless Klein-Gordon field in a 1+1D framework. Our main goal here is to explore the utility and properties of different matching strategies, and to this end we develop two independent implementations, a finite-difference one and a spectral one. We discuss the extension of our method to a full 3D numerical evolution and to gravity.
description: 24 pages, 18 figures
Additional file 1 of Smoking cessation after diagnosis of COPD is associated with lower all-cause and cause-specific mortality: a nationwide population-based cohort study of South Korean men
Creators: name: Doo, Jang Ho
name: Kim, Sung Min
name: Park, Young Jun
name: Kim, Kyae Hyung
name: Oh, Yun Hwan
name: Kim, Ji Soo
name: Park, Sang Min
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Cancer
Science Policy
Mental Health

description: Additional file1: Supplementary Table 1.
Improving Detection of Gravitational wave Microlensing Using Repeated Signals Induced by Strong Lensing
Creators: name: Seo, Eungwang
name: Hannuksela, Otto A.
name: Li, Tjonnie G. F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Microlensing imprints by typical stellar mass lenses on gravitational waves are challenging to identify in the LIGO and Virgo frequency band because such effects are weak. However, stellar mass lenses are generally embedded in lens galaxies such that strong lensing accompanies microlensing. Therefore, events that are strongly lensed in addition to being microlensed may significantly improve the inference of the latter. We present a proof of principle demonstration of how one can use parameter estimation results from one strongly lensed signal to enhance the inference of the microlensing effects of the other signal with the Bayesian inference method currently used in gravitational wave astronomy. We expect this to significantly enhance our future ability to detect the weak imprints from stellar mass objects on gravitational-wave signals from colliding compact objects.
description: 8 pages, 5 figures, presented at TAUP 2021
title: OER Workshop Series: Copyright and Licensing for Open Educational Resources
title: Copyright and Licensing for OER
titleType: AlternativeTitle
Creators: name: Johnson, Rowena
name: Adams, Sarah
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
open educational resources
OER
copyright
open licensing
Creative Commons Licence
open content

description: Understanding the basics of copyright, open licensing, and their implications for adopting, adapting, or creating OERs is essential. This session will give learners the tools they need to lawfully and ethically adopt, adapt, and create OERs. By the end of this workshop, learners will be able to: Define copyright and open licenses; Describe the four different Creative Commons License components; Explain why some CC-licensed content might not be considered OER. OER Workshop Series developed by Christie Hurrell, Sarah Adams, Alexandra Alisauskas, Rowena Johnson, and Kate Cawthorn.
title: OER Workshop Series: Finding Open Educational Resources
title: Finding OER
titleType: AlternativeTitle
Creators: name: Alisauskas, Alexandra
name: Adams, Sarah
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
open educational resources
OER
copyright
Creative Commons Licence
open licensing
open content
attribution
open educational resources repositories

description: OER Treasure Hunt workshop activity worksheet attributed to Alexandra Alisauskas and Kate Cawthorn is licensed under a Creative Commons Attribution 4.0 Internation License.
description: Existing OERs are housed in many different locations, meaning that they can sometimes be difficult to find. In this session, we will provide an overview of how to begin a systematic search for an OER appropriate to your course needs, and outline supports available to instructors for finding and evaluating OER. By the end of this workshop, learners will be able to: Describe key aspects of an OER that should be assessed before use; Conduct a preliminary search for OER; Identify key search tools for finding OER, openly licensed media, and ancillary content. OER Workshop Series developed by Christie Hurrell, Sarah Adams, Alexandra Alisauskas, Rowena Johnson, and Kate Cawthorn.
On The Apparent Narrowing of Radio Recombination Lines at High Principal Quantum Numbers
Creators: name: Alexander, J.
name: Gulyaev, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We critically analyze the Bell et al. findings on "anomalous" widths of high-order Hydrogen radio recombination lines in the Orion Nebula at 6 GHz. We review their method of modified frequency switching and show that the way this method is used for large Δn is not optimal and can lead to misinterpretation of measured spectral line parameters. Using a model of the Orion Nebula, conventional broadening theory and Monte Carlo simulation, we determine a transition-zone n = 224, ..., 241 (Δn = 11, ..., 14), where measurement errors grow quickly with n and become comparable with the measurement values themselves. When system noise and spectrum channelization are accounted for, our simulation predicts "processed" line narrowing in the transition-zone similar to that reported by Bell et al. We find good agreement between our simulation results and their findings, both in line temperatures and widths. We conclude, therefore, that Bell et al.'s findings do not indicate a need to revise Stark broadening theory.
description: 6 pages and figures
title: OER Workshop Series: Getting Started on Creating Open Educational Resources
title: Creating OER
titleType: AlternativeTitle
Creators: name: Hurrell, Christie
name: Adams, Sarah
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
open educational resources
OER
copyright
Creative Commons Licence
open licensing
open content

description: Creating a new OER, either by starting from scratch or by adapting an existing resource, can be a labour intensive process. This session will break down the steps associated with OER creation to give instructors some step-by-step guidance. We will also discuss tools and platforms that are available to instructors for hosting OER materials, and discuss key accessibility and universal design principles. By the end of this workshop, learners will be able to: Identify the five main steps of the OER creation process; Provide examples of tools for creating OER; Describe which OER tools/platforms are supported by UCalgary, and which are “DIY”; Explain the importance of assessing OERs for accessibility. OER Workshop Series developed by Christie Hurrell, Sarah Adams, Alexandra Alisauskas, Rowena Johnson, and Kate Cawthorn.
A Survey of Learning Criteria Going Beyond the Usual Risk
Creators: name: Holland, Matthew J.
name: Tanabe, Kazuki
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Virtually all machine learning tasks are characterized using some form of loss function, and "good performance" is typically stated in terms of a sufficiently small average loss, taken over the random draw of test data. While optimizing for performance on average is intuitive, convenient to analyze in theory, and easy to implement in practice, such a choice brings about trade-offs. In this work, we survey and introduce a wide variety of non-traditional criteria used to design and evaluate machine learning algorithms, place the classical paradigm within the proper historical context, and propose a view of learning problems which emphasizes the question of "what makes for a desirable loss distribution?" in place of tacit use of the expected loss.
description: Final version published in JAIR
A Chandra view of the z=1.62 galaxy cluster IRC-0218A
Creators: name: Pierre, M.
name: Clerc, N.
name: Maughan, B.
name: Pacaud, F.
name: Papovich, C.
name: Willmer, C. N. A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Context: Very few z > 1.5 clusters of galaxies are known. It is important to study the properties of galaxies in these clusters and the ICM and, further, to cross-check the reliability of the various mass estimates. This will help to clarify the process of structure formation and how distant clusters may be used to constrain cosmology. AIMS: We present a 84 ks Chandra observation of IRC-0218A, a cluster of galaxies inferred by the presence of a galaxy overdensity in the infrared at a redshift of 1.62 and associated with some XMM emission Methods: Spatial analysis of the Chandra X-ray photon distribution. Results: The Chandra observation of IRC-0218A appears to be entirely dominated by a point-source located at the centroid of the MIR galaxy density. In addition, we detect weak extended emission (2.3 sigma) out to a radius of 25" with a flux of ~ 3 10E-15 erg/s/cm2 in the [0.3-2]keV band. Assuming that clusters evolve similarly, we infer a virial mass of M200 =7.7+/-3.8 10E13Mo. This is marginally compatible with our current estimate of the cluster dynamical mass (based on 10 redshifts), although there is no evidence that the galaxy peculiar velocities correspond to the motions of a virialized structure. The stellar mass enclosed in the inferred X-ray virial radius is estimated to 1-2 10E12 Mo. We provide a detailed account of 28 X-ray point-sources detected in the field.
description: 6 pages, 8 figures, accepted for publication in A&A (minor changes with respect to the submitted version)
title: OER Workshop Series: Open Educational Resources Handout
title: OER Handout
titleType: AlternativeTitle
Creators: name: Hurrell, Christie
name: Alisauskas, Alexandra
name: Cawthorn, Kate
name: Johnson, Rowena
name: Adams, Sarah
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
open educational resources
OER
copyright
Creative Commons Licence
open licensing
open content
attribution

description: Handout of resources developed for the Open Educational Resources (OER) Workshop Series. Includes resources related to the University of Calgary, copyright, Creative Commons open licensing, finding OER, OER adaptation and creation projects, and OER-enabled and open pedagogy.
Energy-Dissipative Methods in Numerical Analysis, Optimization and Deep Neural Networks for Gradient Flows and Wasserstein Gradient Flows
Creators: name: Zhang, Shiheng
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 490302
subject: Numerical analysis
classificationCode: 490304
subject: Optimisation
classificationCode: 490303
subject: Numerical solution of differential and integral equations
classificationCode: 490301
subject: Experimental mathematics

description: This thesis delves into the development and integration of energy-dissipative methods, with applications spanning numerical analysis, optimization, and deep neural networks, primarily targeting gradient flows and porous medium equations. In the realm of optimization, we introduce the element-wise relaxed scalar auxiliary variable (E-RSAV) algorithm, showcasing its robustness and convergence through extensive numerical experiments. Complementing this, we design an Energy-Dissipative Evolutionary Deep Operator Neural Network (DeepONet) to numerically address a suite of partial differential equations. By employing a dual-subnetwork structure and utilizing the Scalar Auxiliary Variable (SAV) method, the network achieves impeccable approximations of operators while upholding the Energy Dissipation Law, even when training data comprises only the initial state. Lastly, we formulate first-order schemes tailored for Wasserstein gradient flows. Our schemes demonstrate remarkable properties, including mass conservation, unique solvability, positivity preservation, and unconditional energy dissipation. Collectively, the innovations presented here offer promising pathways for efficient and accurate numerical solutions in both gradient flows and Wasserstein gradient flows, bridging the gap between traditional optimization techniques and modern neural network methodologies.
On hitting times, Bessel bridges, and Schrodinger's equation
Creators: name: Hernandez-del-Valle, Gerardo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we establish relationships between four important concepts: (a) hitting time problems of Brownian motion, (b) 3-dimensional Bessel bridges, (c) Schrödinger's equation with linear potential, and (d) heat equation problems with moving boundary. We relate (a) and (b) by means of Girsanov's theorem, which suggests a strategy to extend our ideas to problems in $\mathbb{R}^n$ and general diffusions. This approach also leads to (c) because we may relate, through a Feynman-Kac representation, functionals of a Bessel bridge with two Schrödinger-type problems. In particular, we also find a fundamental solution to a class of parabolic partial differential equations with linear potential. Finally, the relationship between (c) and (d) suggests a possible link between Generalized Airy processes and their hitting times.
Providing Attribution: How to Incorporate Other People's Work Into Your Projects
Creators: name: Guy, Julia
Publisher: name: Libraries and Cultural Resources
Year: 2022
Subjects: learning object
attribution
Creative Commons Licence
media literacy
copyright
open licensing
open educational resources
open content

description: If you want to incorporate media, music, images, photos, or other creating works into a project, it is important to credit the creator of those works by providing attribution. This handout provides guidance on how to create attribution statements to provide this credit, how to find the information about the work, examples, and where to search for openly licensed audiovisual and creative works content.
Edge-wise funnel output synchronization of heterogeneous agents with relative degree one
Creators: name: Lee, Jin Gyu
name: Berger, Thomas
name: Trenn, Stephan
name: Shim, Hyungbo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: When a group of heterogeneous node dynamics are diffusively coupled with a high coupling gain, the group exhibits a collective emergent behavior which is governed by a simple algebraic average of the node dynamics called the blended dynamics. This finding has been utilized for designing heterogeneous multi-agent systems by building the desired blended dynamics first and then splitting it into the node dynamics. However, to compute the magnitude of the coupling gain, each agent needs to know global information such as the number of participating nodes, the graph structure, and so on, which prevents a fully decentralized design of the node dynamics in conjunction with the coupling laws. To resolve this issue, the idea of funnel control, which is a method for adaptive gain selection, can be exploited for a node-wise coupling, but the price to pay is that the collective emergent behavior is no longer governed by a simple average of the node dynamics. Our analysis reveals that this drawback can be avoided by an edge-wise design premise, which is the idea that we present in this paper. After all, we gain benefits such as a fully decentralized design without global information, collective emergent behavior being governed by the blended dynamics, and the plug-and-play operation based on edge-wise handshaking between two nodes.
description: 14 pages, 3 figures
Investigation of within group heterogeneity in measurement comparability research
Creators: name: Oliveri, María Elena
Publisher: name: University of British Columbia
Year: 2012

description: This dissertation investigated the broad concern of the violation of the within group homogeneity (WGH) assumption associated with methods used to investigate differential item functioning (DIF) in educational large-scale assessments (ELSAs) in two studies. The first study investigated the WGH assumption using real data from an international ELSA of reading literacy administered to examinees from four countries: Chinese Taipei, Hong Kong, Qatar and Kuwait. It examined the degree of homogeneity of the test data structure, and the consistency in identification of DIF items between a manifest versus a latent class DIF approach. Sources of incomparability underlying DIF items related to reading comprehension processes, cognitive complexity of items and purposes of reading as well as instruction and teacher-related variables were investigated. Three latent classes (LCs) were identified indicating heterogeneity in response patterns. The two approaches identified different DIF items with the latent class approach identifying a higher number of differentially functioning items with larger effect sizes. Inconclusive results were obtained when analyzing sources of manifest DIF items. Student achievement was found to be a primary factor influencing LC membership, whereas typically used manifest characteristics (e.g., country or gender) had either small or no significant influence on LC assignment. The second study used simulated data to systematically investigate the effects of heterogeneity on accuracy of DIF detection by two manifest DIF detection methods: logistic regression and Mantel-Haenszel. Greater degrees of heterogeneity resulted in significantly reduced DIF detection accuracy. Findings from this dissertation have important implications for DIF and validity research. The first study presents evidence of within group heterogeneity in international assessments and therefore, contributes to research that suggests that the WGH assumption needs to be tested for meaningful manifest DIF analysis. Moreover, findings from study one indicate that measurement incomparability may be greater among groups that are not defined by manifest variables such as gender, language and ethnicity. Findings from study two highlight the importance of examining within group heterogeneity in measurement comparability analyses; otherwise, violations of the WGH assumption may lead to grossly overestimating comparability claims.
Detailed SZ study of 19 LoCuSS galaxy clusters: masses and temperatures out to the virial radius
Creators: name: Consortium, The AMI
name: :
name: Rodríguez-Gonzálvez, Carmen
name: Shimwell, Timothy W.
name: Davies, Matthew L.
name: Feroz, Farhan
name: Franzen, Thomas M. O.
name: Grainge, Keith J. B.
name: Hobson, Michael P.
name: Hurley-Walker, Natasha
name: Lasenby, Anthony N.
name: Olamaie, Malak
name: Pooley, Guy
name: Saunders, Richard D. E.
name: Scaife, Anna M. M.
name: Schammel, Michel P.
name: Scott, Paul F.
name: Titterington, David J.
name: Waldram, Elizabeth M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present 16-GHz AMI SZ observations of 19 clusters with L_X >7x10^37 W (h50=1) selected from the LoCuS survey (0.142
description: 45 pages, 33 figures, 13 tables Accepted for publication in MNRAS
Signed area enumeration for lattice walks
Creators: name: Ouvry, Stephane
name: Polychronakos, Alexios P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We give a summary of recent progress on the signed area enumeration of closed walks on planar lattices. Several connections are made with quantum mechanics and statistical mechanics. Explicit combinatorial formulae are proposed which rely on sums labelled by the multicompositions of the length of the walks.
description: Version published in S\'eminaire Lotharingien de Combinatoire; 13 pages, 4 figures
Notes on entropic characteristics of quantum channels
Creators: name: Rastegin, Alexey E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: One of most important issues in quantum information theory concerns transmission of information through noisy quantum channels. We discuss few channel characteristics expressed by means of generalized entropies. Such characteristics can often be dealt in line with more usual treatment based on the von Neumann entropies. For any channel, we show that the $q$-average output entropy of degree $q\geq1$ is bounded from above by the $q$-entropy of the input density matrix. Concavity properties of the $(q,s)$-entropy exchange are considered. Fano type quantum bounds on the $(q,s)$-entropy exchange are derived. We also give upper bounds on the map $(q,s)$-entropies in terms of the output entropy, corresponding to the completely mixed input.
description: 10 pages, no figures. The statement of Proposition 1 is explicitly illustrated with the depolarizing channel. The bibliography is extended and updated. More explanations. To be published in Cent. Eur. J. Phys
Additional file 1 of Exosome-derived circKIF20B suppresses gefitinib resistance and cell proliferation in non-small cell lung cancer
Creators: name: Wei, Si-Liang
name: Ye, Jing-Jing
name: Sun, Li
name: Hu, Lei
name: Wei, Yuan-Yuan
name: Zhang, Da-Wei
name: Xu, Meng-Meng
name: Fei, Guang-He
Publisher: name: figshare
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Hematology

description: Additional file 1 (Table S1-S4).