cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Apprenticeship in the United States : Patterns of Governance and Recent Developments
Creators: name: Lerman, Robert
Publisher: name: American University
Year: 2023

description: The share of US workers who undertake apprenticeship training is small compared to most other OECD countries and compared to the number of workers who undertake postsecondary education. However, the scale of the US apprenticeship is large compared with the training funded through the federal Workforce Investment Act. Historically, US apprenticeship programs have been highly concentrated in construction, manufacturing, and other selected fields, including public safety and some military occupations. In recent years, however, the Office of Apprenticeship of the US Department of Labor has funded efforts to establish apprenticeships outside these traditional sectors, in such occupation-industry clusters as nursing, information technology, geospatial, advanced manufacturing, and maritime occupations. This paper describes aspects of the governance of the registered apprenticeship system in the US, examines recent initiatives from the Office of Apprenticeship to expand apprenticeship, and analyzes new evidence about how apprenticeship sponsors view the system.
Quenched spectroscopy with fixed-point and chirally improved fermions
Creators: name: BGR Collaboration
name: Gattringer, Christof
name: Gockeler, Meinulf
name: Hasenfratz, Peter
name: Hauswirth, Simon
name: Holland, Kieran
name: Jorg, Thomas
name: Juge, Keisuke J.
name: Lang, C. B.
name: Niedermayer, Ferenc
name: Rakow, P. E. L.
name: Schaefer, Stefan
name: Schafer, Andreas
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results from quenched spectroscopy calculations with the parametrized fixed-point and the chirally improved Dirac operators. Both these operators are approximate solutions of the Ginsparg-Wilson equation and have good chiral properties. This allows us to work at small quark masses and we explore pseudoscalar-mass to vector-mass ratios down to 0.28. We discuss meson and baryon masses, their scaling properties, finite volume effects and compare our results with recent large scale simulations. We find that the size of quenching artifacts of the masses is strongly correlated with their experimentally observed widths and that the gauge and hadronic scales are consistent.
description: 66 pages, 33 figures. Published version: minor modifications in the text, references added
Snippext: Semi-supervised Opinion Mining with Augmented Data
Creators: name: Miao, Zhengjie
name: Li, Yuliang
name: Wang, Xiaolan
name: Tan, Wang-Chiew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Online services are interested in solutions to opinion mining, which is the problem of extracting aspects, opinions, and sentiments from text. One method to mine opinions is to leverage the recent success of pre-trained language models which can be fine-tuned to obtain high-quality extractions from reviews. However, fine-tuning language models still requires a non-trivial amount of training data. In this paper, we study the problem of how to significantly reduce the amount of labeled training data required in fine-tuning language models for opinion mining. We describe Snippext, an opinion mining system developed over a language model that is fine-tuned through semi-supervised learning with augmented data. A novelty of Snippext is its clever use of a two-prong approach to achieve state-of-the-art (SOTA) performance with little labeled training data through: (1) data augmentation to automatically generate more labeled training data from existing ones, and (2) a semi-supervised learning technique to leverage the massive amount of unlabeled data in addition to the (limited amount of) labeled data. We show with extensive experiments that Snippext performs comparably and can even exceed previous SOTA results on several opinion mining tasks with only half the training data required. Furthermore, it achieves new SOTA results when all training data are leveraged. By comparison to a baseline pipeline, we found that Snippext extracts significantly more fine-grained opinions which enable new opportunities of downstream applications.
description: Accepted to WWW 2020
Are employability skills learned in U.S. youth education and training programs?
Creators: name: Lerman, Robert
Publisher: name: American University
Year: 2023

description: Skills are a central source of high productivity and economic well-being. But what do we mean by productive skills? Both with regard to measurement and policy, the primary focus in the U.S. has been on academic skills, as measured by tests of reading, writing and math abilities and by educational attainment, including degrees completed. However, a new consensus is emerging that an array of non-academic skills and occupational skills may be at least as important for labor market success. After reviewing the evidence on respective roles of various types of skills required by employers, this paper examines the skill-enhancing effects of several youth programs and demonstrations, with an emphasis on how well these efforts raise non-academic skills directly through purposeful activities or indirectly as a result of other employment-enhancing services.
Are employability skills learned in U.S. youth education and training programs?
Creators: name: Lerman, Robert
Publisher: name: IZA Journal of Labor Policy
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: Skills are a central source of high productivity and economic well-being. But what do we mean by productive skills? Both with regard to measurement and policy, the primary focus in the U.S. has been on academic skills, as measured by tests of reading, writing and math abilities and by educational attainment, including degrees completed. However, a new consensus is emerging that an array of non-academic skills and occupational skills may be at least as important for labor market success. After reviewing the evidence on respective roles of various types of skills required by employers, this paper examines the skill-enhancing effects of several youth programs and demonstrations, with an emphasis on how well these efforts raise non-academic skills directly through purposeful activities or indirectly as a result of other employment-enhancing services.
MetaNet: A new paradigm for data sharing in photonics research
Creators: name: Jiang, Jiaqi
name: Lupoiu, Robert
name: Wang, Evan W.
name: Sell, David
name: Hugonin, Jean Paul
name: Lalanne, Philippe
name: Fan, Jonathan A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Optimization methods are playing an increasingly important role in all facets of photonics engineering, from integrated photonics to free space diffractive optics. However, efforts in the photonics community to develop optimization algorithms remain uncoordinated, which has hindered proper benchmarking of design approaches and access to device designs based on optimization. We introduce MetaNet, an online database of photonic devices and design codes intended to promote coordination and collaboration within the photonics community. Using metagratings as a model system, we have uploaded over one hundred thousand device layouts to the database, as well as source code for implementations of local and global topology optimization methods. Further analyses of these large datasets allow the distribution of optimized devices to be visualized for a given optimization method. We expect that the coordinated research efforts enabled by MetaNet will expedite algorithm development for photonics design.
Total Cross Section of the Process e+e- -> pi+pi-pi+pi- in the C.M.Energy Range 980-1380 MeV
Creators: name: Akhmetshin, R. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The e+e- -> pi+pi-pi+pi- cross section has been measured using 5.8/pb of integrated luminosity collected with the CMD-2 detector at the VEPP-2M collider. Analysis of the data with a refined efficiency determination and use of both three- and four-track events allowed doubling of a data sample and reduction of systematic errors to 5-7%.
description: 13 pages, 5 figures, submitted to Phys. Lett. B
Non-exponential decay in Floquet-Bloch bands
Creators: name: Cao, Alec
name: Fujiwara, Cora J.
name: Sajjad, Roshan
name: Simmons, Ethan Q.
name: Lindroth, Eva
name: Weld, David M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Exponential decay laws describe systems ranging from unstable nuclei to fluorescent molecules, in which the probability of jumping to a lower-energy state in any given time interval is static and history-independent. These decays, involving only a metastable state and fluctuations of the quantum vacuum, are the most fundamental nonequilibrium process, and provide a microscopic model for the origins of irreversibility. Despite the fact that the apparently universal exponential decay law has been precisely tested in a variety of physical systems, it is a surprising truth that quantum mechanics requires that spontaneous decay processes have non-exponential time dependence at both very short and very long times. Cold-atom experiments both classic and recent have proven to be powerful probes of fundamental decay processes; in this paper, we propose the use of Bose condensates in Floquet-Bloch bands as a probe of long-time non-exponential decay in single isolated emitters. We identify a range of parameters that should enable observation of long-time deviations, and experimentally demonstrate a key element of the scheme: tunable decay between quasienergy bands in a driven optical lattice.
description: 7 pages, 5 figures
A Matrix Model for Bilayered Quantum Hall Systems
Creators: name: Jellal, Ahmed
name: Schreiber, Michael
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We develop a matrix model to describe bilayered quantum Hall fluids for a series of filling factors. Considering two coupling layers, and starting from a corresponding action, we construct its vacuum configuration at ν=q_iK_{ij}^{-1}q_j, where K_{ij} is a 2\times 2 matrix and q_i is a vector. Our model allows us to reproduce several well-known wave functions. We show that the wave function Ψ_{(m,m,n)} constructed years ago by Yoshioka, MacDonald and Girvin for the fractional quantum Hall effect at filling factor {2\over m+n} and in particular Ψ_{(3,3,1)} at filling {1\over 2} can be obtained from our vacuum configuration. The unpolarized Halperin wave function and especially that for the fractional quantum Hall state at filling factor {2\over 5} can also be recovered from our approach. Generalization to more than 2 layers is straightforward.
description: 14 pages, minor changes in introduction and references added, published in JPA
Additional file 1 of Changes in smoking patterns after HIV diagnosis or antiretroviral treatment initiation: a global systematic review and meta-analysis
Creators: name: Jobert Richie Nansseu
name: Dalhia Noelle Tounouga
name: Noubiap, Jean Jacques
name: Bigna, Jean Joel
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. MOOSE checklist Table S2. Search strategy in PubMed Table S3. Characteristics of included studies Figure S1. Process of identification and selection of studies for inclusion in the review (PRISMA flow diagram)
Long-wavelength density fluctuations as nucleation precursors
Creators: name: Lutsko, James F.
name: Lam, Julien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Recent theories of nucleation that go beyond Classical Nucleation Theory predict that diffusion-limited nucleation of both liquid droplets and of crystals from a low-density vapor (or weak solution) begins with long-wavelength density fluctuations. This means that in the early stages of nucleation, 'clusters' can have low density but large spatial extent, which is at odds with the classical picture of arbitrarily small clusters of the condensed phase. We present the results of kinetic Monte Carlo simulations using Forward Flux Sampling to show that these predictions are confirmed: namely that on average, nucleation begins in the presence of low-amplitude, but spatially extended density fluctuations thus confirming a significant prediction of the non-classical theory.
Return times of random walk on generalized random graphs
Creators: name: Masuda, Naoki
name: Konno, Norio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Random walks are used for modeling various dynamics in, for example, physical, biological, and social contexts. Furthermore, their characteristics provide us with useful information on the phase transition and critical phenomena of even broader classes of related stochastic models. Abundant results are obtained for random walk on simple graphs such as the regular lattices and the Cayley trees. However, random walks and related processes on more complex networks, which are often more relevant in the real world, are still open issues, possibly yielding different characteristics. In this paper, we investigate the return times of random walks on random graphs with arbitrary vertex degree distributions. We analytically derive the distributions of the return times. The results are applied to some types of networks and compared with numerical data.
description: 3 figures
Additional file 7 of Hospital falls prevention with patient education: a scoping review
Creators: name: Heng, Hazel
name: Jazayeri, Dana
name: Shaw, Louise
name: Kiegaldie, Debra
name: Hill, Anne-Marie
name: Morris, Meg E.
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 7. Characteristics of non-RCT studies. Descriptive characteristics of all non-RCT studies including setting, intervention type, patient education content, delivery, design, outcomes and quality.
Universal Cause of High-Tc Superconductivity and Anomalous Behavior of Heavy Fermion Metals
Creators: name: Shaginyan, V. R.
name: Amusia, M. Ya.
name: Msezane, A. Z.
name: Popov, K. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Unusual properties of strongly correlated liquid observed in the high-$T_c$ superconductors and heavy-fermion (HF) metals are determined by quantum phase transitions taking place at their critical points. Therefore, direct experimental studies of these transitions and critical points are of crucial importance for understanding the physics of high-$T_c$ superconductors and HF metals. In case of high-$T_c$ superconductors such direct experimental studies are absent since at low temperatures corresponding critical points are occupied by the superconductivity. Recent experimental data on the behavior of HF metals illuminate both the nature of these critical points and the nature of the phase transitions. We show that it is of crucial importance to simultaneously carry out studies of both the high-$T_c$ superconductivity and the anomalous behavior of HF metals. Our general consideration suggests that FCQPT and the emergence of novel quasiparticles near and behind FCQPT are distinctive features of strongly correlated substances such as the high-$T_c$ superconductors and HF metals. We show that the main properties and universal behavior of the high-$T_c$ superconductors and HF metals can be understood within the framework of presented here theory based on FCQPT. A large number of the experimental evidences in favor of the existence of FCQPT in high-$T_c$ superconductors and HF metals is presented.
description: 74 pages, 19 figures
Additional file 6 of Hospital falls prevention with patient education: a scoping review
Creators: name: Heng, Hazel
name: Jazayeri, Dana
name: Shaw, Louise
name: Kiegaldie, Debra
name: Hill, Anne-Marie
name: Morris, Meg E.
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Biotechnology
Science Policy

description: Additional file 6. Quality metric scores of patient education programs. Quality metric scores of each patient education program presented in included studies.
Extreme events in time series aggregation: A case study for optimal residential energy supply systems
Creators: name: Teichgraeber, Holger
name: Lindenmeyer, Constantin P.
name: Baumgärtner, Nils
name: Kotzur, Leander
name: Stolten, Detlef
name: Robinius, Martin
name: Bardow, Andre
name: Brandt, Adam R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Signal Processing (eess.SP)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: To account for volatile renewable energy supply, energy systems optimization problems require high temporal resolution. Many models use time-series clustering to find representative periods to reduce the amount of time-series input data and make the optimization problem computationally tractable. However, clustering methods remove peaks and other extreme events, which are important to achieve robust system designs. We present a general decision framework to include extreme events in a set of representative periods. We introduce a method to find extreme periods based on the slack variables of the optimization problem itself. Our method is evaluated and benchmarked with other extreme period inclusion methods from the literature for a design and operations optimization problem: a residential energy supply system. Our method ensures feasibility over the full input data of the residential energy supply system although the design optimization is performed on the reduced data set. We show that using extreme periods as part of representative periods improves the accuracy of the optimization results by 3% to more than 75% depending on system constraints compared to results with clustering only, and thus reduces system cost and enhances system reliability.
Pipelined CPU-GPU Scheduling for Caches
Creators: name: Gerzhoy, Daniel
name: Yeung, Donald
Publisher: name: Digital Repository at the University of Maryland
Year: 2021

description: Heterogeneous microprocessors integrate a CPU and GPU with a shared cache hierarchy on the same chip, affording low-overhead communication between the CPU and GPU's cores. Often times, large array data structures are communicated from the CPU to the GPU and back. While the on-chip cache hierarchy can support such CPU-GPU producer-consumer sharing, this almost never happens due to poor temporal reuse. Because the data structures can be quite large, by the time the consumer reads the data, it has been evicted from cache even though the producer had brought it on-chip when it originally wrote the data. As a result, the CPU-GPU communication happens through main memory instead of the cache, hurting performance and energy. This paper exploits the on-chip caches in a heterogeneous microprocessor to improve CPU-GPU communication efficiency. We divide streaming computations executed by the CPU and GPU that exhibit producer-consumer sharing into chunks, and overlap the execution of CPU chunks with GPU chunks in a software pipeline. To enforce data dependences, the producer executes one chunk ahead of the consumer at all times. We also propose a low-overhead synchronization mechanism in which the CPU directly controls thread-block scheduling in the GPU to maintain the producer's "run-ahead distance" relative to the consumer. By adjusting the chunk size or run-ahead distance, we can make the CPU-GPU working set fit in the last-level cache, thus permitting the producer-consumer sharing to occur through the LLC. We show through simulation that our technique reduces the number of DRAM accesses by 30.4%, improves performance by 26.8%, and lowers memory system energy by 27.4% averaged across 7 benchmarks.
Dynamical solitons and boson fractionalization in cold-atom topological insulators
Creators: name: González-Cuadra, Daniel
name: Dauphin, Alexandre
name: Grzybowski, Przemysław R.
name: Lewenstein, Maciej
name: Bermudez, Alejandro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the $\mathbb{Z}_2$ Bose-Hubbard model at incommensurate densities, which describes a one-dimensional system of interacting bosons whose tunneling is dressed by a dynamical $\mathbb{Z}_2$ field. At commensurate densities, the model is known to host intertwined topological phases, where long-range order coexists with non-trivial topological properties. This interplay between spontaneous symmetry breaking (SSB) and topological symmetry protection gives rise to interesting fractional topological phenomena when the system is doped to certain incommensurate fillings. In particular, we hereby show how topological defects in the $\mathbb{Z}_2$ field can appear in the ground state, connecting different SSB sectors. These defects are dynamical and can travel through the lattice carrying both a topological charge and a fractional particle number. In the hardcore limit, this phenomenon can be understood through a bulk-defect correspondence. Using a pumping argument, we show that it survives also for finite interactions, demonstrating how boson fractionalization can occur in strongly-correlated bosonic systems, the main ingredients of which have already been realized in cold-atom experiments.
Estimated IR and phosphorescence emission fluxes for specific Polycyclic Aromatic Hydrocarbons in the Red Rectangle
Creators: name: Mulas, G.
name: Malloci, G.
name: Joblin, C.
name: Toublanc, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Following the tentative identification of the blue luminescence in the Red Rectangle by Vijh et al. (2005), we compute absolute fluxes for the vibrational IR emission and phosphorescence bands of three small polycyclic aromatic hydrocarbons. The calculated IR spectra are compared with available ISO observations. A subset of the emission bands are predicted to be observable using presently available facilities, and can be used for an immediate, independent, discriminating test on their alleged presence in this well-known astronomical object.
description: accepted for publication on A&A
Additional file 1 of Retrospective analysis of infliximab and adalimumab treatment in a large cohort of juvenile dermatomyositis patients
Creators: name: Campanilho-Marques, Raquel
name: Deakin, Claire T.
name: Simou, Stefania
name: Papadopoulou, Charalampia
name: Wedderburn, Lucy R.
name: Pilkington, Clarissa A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1: Supplementary Figure S1. Flow diagram to outline which patients were included or excluded in the study and which analyses they were included in. Supplementary Results.
Additional file 1 of The Enhanced Liver Fibrosis test is associated with liver-related outcomes in postmenopausal women with risk factors for liver disease
Creators: name: Trembling, Paul M.
name: Apostolidou, Sophia
name: Gentry-Maharaj, Aleksandra
name: Parkes, Julie
name: Ryan, Andy
name: Sudeep Tanwar
name: Burnell, Matthew
name: Harris, Scott
name: Menon, Usha
name: Rosenberg, William M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1: Table S1. ICD-10 codes and / or death certificate text of first LREs for the cases. Table S2. Assay results for individual components of the ELF test and calculated ELF test score for cases and controls.
BODY MASS INDEX AS A PREDICTOR OF THE DEVELOPMENT OF EPIDURAL FIBROSIS.
Creators: name: Sariboev, O.M.
Publisher: name: Zenodo
Year: 2024

description: One of the main reasons for the development of “failed back surgery syndrome” is considered to be the formation of a connective tissue scar in the epidural space in patients after discectomy. Quite a large number of methods for pre- or intraoperative prevention of this process have been proposed, but the factors contributing to its development in the postoperative period have been little studied.
ivtreatreg: A command for fitting binary treatment models with heterogeneous response to treatment and unobservable selection
Creators: name: Cerulli, Giovanni
name: Cerulli, Giovanni
Publisher: name: Unknown
Year: 2014
Subjects: subject: Research Methods/ Statistical Methods
subject: ivtreatreg
subject: microeconometrics
subject: treatment models
subject: instrumental variables
subject: unobservable selection
subject: treatment endogeneity
subject: heterogeneous treatment response

description: In this article, I present ivtreatreg, a command for fitting four different binary treatment models with and without heterogeneous average treatment effects under selection-on-unobservables (that is, treatment endogeneity). Depending on the model specified by the user, ivtreatreg provides consistent estimation of average treatment effects by using instrumental-variables estimators and a generalized two-step Heckman selection model. The added value of this new command is that it allows for generalization of the regression approach typically used in standard program evaluation by assuming heterogeneous response to treatment. It also serves as a sort of toolbox for conducting joint comparisons of different treatment methods, thus readily permitting checks on the robustness of results.
Oxygen-stripes in La0.5Ca0.5MnO3 from ab initio calculations
Creators: name: Ferrari, V.
name: Towler, M. D.
name: Littlewood, P. B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the electronic, magnetic and orbital properties of La0.5Ca0.5MnO3 perovskite by means of an ab initio electronic structure calculation within the Hartree-Fock approximation. Using the experimental crystal structure reported by Radaelli et al. [Phys. Rev B 55, 3015 (1997)], we find a charge-ordering stripe-like ground state. The periodicity of the stripes, and the insulating CE-type magnetic structure are in agreement with neutron x-ray and electron diffraction experiments. However, the detailed structure is more complex than that envisaged by simple models of charge and orbital order on Mn d-levels alone, and is better described as a charge-density wave of oxygen holes, coupled to the Mn spin/orbital order.
description: 4 pages, 3 figures. Version accepted for publication in PRL
Obtaining critical values for test of Markov regime switching
Creators: name: Bostwick, Valerie K.
name: Steigerwald, Douglas G.
name: Bostwick, Valerie K.
name: Steigerwald, Douglas G.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Research Methods/ Statistical Methods
subject: rscv
subject: Markov regime switching

description: For Markov regime-switching models, a nonstandard test statistic must be used to test for the possible presence of multiple regimes. Carter and Steigerwald (2013, Journal of Econometric Methods 2: 25–34) derive the analytic steps needed to implement the Markov regime-switching test proposed by Cho and White (2007, Econometrica 75: 1671–1720). We summarize the implementation steps and address the computational issues that arise. We then introduce a new command to compute regime-switching critical values, rscv, and present it in the context of empirical research.
A command for significance and power to test for the existence of a unique most probable category
Creators: name: Fellman, Bryan M.
name: Ensor, Joe
name: Fellman, Bryan M.
name: Ensor, Joe
Publisher: name: Unknown
Year: 2014
Subjects: subject: Research Methods/ Statistical Methods
subject: cellsupremacy
subject: cellsupremacyi
subject: power_cellsupremacy
subject: mosthfilbreak probable category
subject: multinomial data
subject: cell supremacy, cell inferiority

description: The analysis of multinomial data often includes the following question of interest: Is a particular category the most populous (that is, does it have the largest probability)? Berry (2001, Journal of Statistical Planning and Inference 99: 175–182) developed a likelihood-ratio test for assessing the evidence for the existence of a unique most probable category. Nettleton (2009, Journal of the American Statistical Association 104: 1052–1059) developed a likelihood-ratio test for testing whether a particular category was most probable, showed that the test was an example of an intersection-union test, and proposed other intersection-union tests for testing whether a particular category was most probable. He extended his likelihood-ratio test to the existence of a unique most probable category and showed that his test was equivalent to the test developed by Berry (2001, Journal of Statistical Planning and Inference 99: 175–182). Nettleton (2009, Journal of the American Statistical Association 104: 1052–1059) showed that the likelihood ratio for identifying a unique most probable cell could be viewed as a union-intersection test. The purpose of this article is to survey different methods and present a command, cellsupremacy, for the analysis of multinomial data as it pertains to identifying the significantly most probable category; the article also presents a command for sample-size calculations and power analyses, power_cellsupremacy, that is useful for planning multinomial data studies.
J/psi production from proton-proton collisions at sqrt(s) = 200 GeV
Creators: name: PHENIX Collaboration
name: Adler, S. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: J/psi production has been measured in proton-proton collisions at sqrt(s)= 200 GeV over a wide rapidity and transverse momentum range by the PHENIX experiment at RHIC. Distributions of the rapidity and transverse momentum, along with measurements of the mean transverse momentum and total production cross section are presented and compared to available theoretical calculations. The total J/psi cross section is 3.99 +/- 0.61(stat) +/- 0.58(sys) +/- 0.40(abs) micro barns. The mean transverse momentum is 1.80 +/- 0.23(stat) +/- 0.16(sys) GeV/c.
description: 326 authors, 6 pages text, 4 figures, 1 table, RevTeX 4. To be submitted to PRL. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
Generation of smoothly-varying infill configurations from a continuous menu of cell patterns and the asymptotic analysis of its mechanical behaviour
Creators: name: Xue, Dingchuan
name: Zhu, Yichao
name: Guo, Xu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Applied Physics (physics.app-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We here introduce a novel scheme for generating smoothly-varying infill graded microstructural (IGM) configurations from a given menu of generating cells. The scheme was originally proposed for essentially improving the variety of describable configurations in a modified asymptotic homogenisation-based topology optimisation framework [1] for fast IGM design. But the proposed scheme, after modification, also demonstrates its unique values in two aspects of applications. First, it provides a fairly simple way of generating an IGM configuration continuously patching any given cell configurations. Second, it tenders a straightforward mean for decorating microstructures on a given manifold. We will further show that the form of topology description function given here effectively offers a platform for unifying most existing approaches for IGM generation. Fuelled by asymptotic analysis of the mechanical behaviour of the resulting IGM configurations, a topology optimisation scheme for compliance minimisation is introduced. We will finally show that, the use of the present scheme helps reduce the compliance value of an optimised structure by nearly a half, if compared with that from the original framework [1].
ISTE'MOL QILINADIGAN OZIQ OVQAT TARKIBIDAGI TITAN DIOKSIDI NANOZARRACHALARINING ORGANIZMGA TA'SIRINI BAHOLASH
Creators: name: Keldiyorova Shoxida Xusniddin qizi1,  Suvonov Azizbek Zohid o'g'li2 1Samarqand davlat tibbiyot universiteti Biologik kimyo kafedrasi o'qituvchisi. 2Samarqand davlat tibbiyot universiteti 2-son Davolash ishi fakulteti talabasi
Publisher: name: Zenodo
Year: 2024

description: Ozuqa qo‘shimchasi bo‘lgan titan dioksidining (E-171) organizmga salbiy ta’sirini xalqaro hamjamiyat hamda olimlarning tajriba va mulohazalaridan foydalanib o‘rganish.
title: Improving the current use of eLearning in two newly established Saudi universities from teaching staff and student perspectives
Creators: name: Alharbi, Omran Ammar Omran
Publisher: name: University of Glasgow
Year: 2021

description: This thesis was conducted in Saudi Arabia in two recently established universities. These universities are given pseudonyms for ethical considerations. The study aimed to investigate the opinions of faculty members and learners about the integration of technology in Saudi universities, especially those established recently. The participants in this study were educators and students from both universities. Data was gathered using questionnaires and interviews, based on the TAM model. The results from the study indicate that the adoption and integration of technology in education environment by both educators and students was rare. As well as, the study mentioned that more training and encouragement for both educators and students are needed in order to improve the current adoption of eLearning initiatives in teaching and learning process.
QCD Challenges from pp to A-A Collisions
Creators: name: Adolfsson, J.
name: Andronic, A.
name: Bierlich, C.
name: Bozek, P.
name: Chakraborty, S.
name: Christiansen, P.
name: Chinellato, D. D.
name: Fries, R. J.
name: Gustafson, G.
name: van Hees, H.
name: Jacobs, P. M.
name: Kim, D. J.
name: Lönnblad, L.
name: Mace, M.
name: Matonoha, O.
name: Mazeliauskas, A.
name: Morsch, A.
name: Nassirpour, A.
name: Ohlson, A.
name: Ortiz, A.
name: Oskarsson, A.
name: Otterlund, I.
name: Paić, G.
name: Perepelitsa, D. V.
name: Plumberg, C.
name: Preghenella, R.
name: Rapp, R.
name: Rasmussen, C. O.
name: Rossi, A.
name: Rueda, O. V.
name: Silva, A. V. D.
name: Silvermyr, D.
name: Timmins, A.
name: Sjöstrand, T.
name: Törnkvist, R.
name: Utheim, M.
name: Vislavicius, V.
name: Wiedemann, U. A.
name: Zapp, K.
name: Zhao, W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: This paper is a write-up of the ideas that were presented, developed and discussed at the third International Workshop on QCD Challenges from pp to A-A, which took place in August 2019 in Lund, Sweden. The goal of the workshop was to focus on some of the open questions in the field and try to come up with concrete suggestions for how to make progress on both the experimental and theoretical sides. The paper gives a brief introduction to each topic and then summarizes the primary results.
description: 22 pages, 10 figures, write-up of third International Workshop on QCD Challenges from pp to A-A
Supplemental Material in support of: Species-specific interactions in an avian-bryophyte dispersal network from Species-specific interactions in avian–bryophyte dispersal networks
Creators: name: Chmielewski, Matthew W.
name: Eppley, Sarah M.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 60801 Animal Behaviour

description: Contains species name definitions, a table of foraging strategies adapted from the EltonTraits 1.0 database, trees used to calculate Faith's PD, cover of bryophytes in the local environment, and a heatmap of bipartite relationships.
Capabilities and Contributions of Unwed Fathers
Creators: name: Lerman, Robert
Publisher: name: The Future of Children
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: Young, minority, and poorly educated fathers in fragile families have little capacity to support their children nancially and are hard-pressed to maintain stability in raising those children. In this article, Robert Lerman examines the capabilities and contributions of unwed fathers, how their capabilities and contributions fall short of those of married fathers, how those capabilities and contributions differ by the kind of relationship the fathers have with their child’s mother, and how they change as infants grow into toddlers and kindergartners. Unwed fathers’ employment and earnings vary widely among groups but generally rise over time. At the child’s birth, cohabiting fathers earn nearly 20 percent more than noncohabiting unwed fathers, and the gap widens over time. Still, ve years after an unwed birth, the typi- cal unwed father is working full time for the full year. Although most unwed fathers spend considerable time with their children in the years soon after birth, explains Lerman, over time their involvement erodes. Men who lose touch with their children are likely to see their earn- ings stagnate, provide less nancial support, and often face new obligations when they father children with another partner. By contrast, the unwed fathers who marry or cohabit with their child’s mother earn considerably higher wages and work substantially more than unwed fathers who do not marry or cohabit. These results suggest that unwed fathers’ earnings are affected by family relationships as well as their education and work experience. Lerman notes that several factors in uence the extent to which unwed fathers stay involved with their children. Better-educated fathers, those who most identify with the father’s role, and those with good relationships with the child’s mother, are most likely to sustain a relationship with their children. Some studies even nd that strong child support enforcement increases father involvement. For many years, policy makers approached the problem of noncustodial, unwed fathers on a single track—by trying to increase their child support payments. Today’s policy makers are recognizing the limits of that strategy. New programs focus on improving the relationship and communication skills of unwed fathers. In addition, targeted training pro- grams, such as apprenticeships, enable unwed fathers to earn a salary while they learn skills.
Design for People Autonomy
Creators: name: Gianfrate, Valentina
name: Aragall, Francesc
name: Antonucci, Micaela
Publisher: name: European Journal of Creative Practices in Cities and Landscapes
Year: 2021

description: In the last years the debate related to people autonomy has been investigated in different fields of research and experimentation, starting from the relationship between personal autonomy and well-being, the ability to make decisions freely, the affirmation of one's right of choice, (the right to political participation, access to justice or the right to have a family) for the self-determination development (i.e. legal capacity), but at the same time “autonomy” can be interpreted as a complex result of human relationships, strengthening interaction and opportunity. This is valid for everyone, regardless of their health condition or functional limitations; in fact, no human being can be considered completely “autonomous” since everyone acts in a condition of interdependence with others to varying degrees. This last aspect is particularly significant for people with disabilities, because it affects their active involvement in the life of the community in which they live, and their ability to lead an independent life. The concept of independent living was introduced in the Article 19 of the Convention on the Rights of Persons with Disabilities (CRPD) and it is therefore closely connected to the citizen’s rights of disabled persons. The World Bank (WB) and the World Health Organization (WHO) estimate that a billion disabled people in the world face some barriers in the inclusion in many vital sectors, such as mobility, job, education, or simply in being socially or politically involved during their everyday life. However, the right to actively participate in the public life and reduce disparities are core elements of a stable democracy. Accessibility is intended as empowerment, meaning the individual and collective awareness of the right to access goods or services within one’s own community.
description: European Journal of Creative Practices in Cities and Landscapes, Vol. 3 No. 2 (2020): Design for People’s Autonomy. Rights to Independent Living
Learning from, Understanding, and Supporting DevOps Artifacts for Docker
Creators: name: Henkel, Jordan
name: Bird, Christian
name: Lahiri, Shuvendu K.
name: Reps, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: With the growing use of DevOps tools and frameworks, there is an increased need for tools and techniques that support more than code. The current state-of-the-art in static developer assistance for tools like Docker is limited to shallow syntactic validation. We identify three core challenges in the realm of learning from, understanding, and supporting developers writing DevOps artifacts: (i) nested languages in DevOps artifacts, (ii) rule mining, and (iii) the lack of semantic rule-based analysis. To address these challenges we introduce a toolset, binnacle, that enabled us to ingest 900,000 GitHub repositories. Focusing on Docker, we extracted approximately 178,000 unique Dockerfiles, and also identified a Gold Set of Dockerfiles written by Docker experts. We addressed challenge (i) by reducing the number of effectively uninterpretable nodes in our ASTs by over 80% via a technique we call phased parsing. To address challenge (ii), we introduced a novel rule-mining technique capable of recovering two-thirds of the rules in a benchmark we curated. Through this automated mining, we were able to recover 16 new rules that were not found during manual rule collection. To address challenge (iii), we manually collected a set of rules for Dockerfiles from commits to the files in the Gold Set. These rules encapsulate best practices, avoid docker build failures, and improve image size and build latency. We created an analyzer that used these rules, and found that, on average, Dockerfiles on GitHub violated the rules five times more frequently than the Dockerfiles in our Gold Set. We also found that industrial Dockerfiles fared no better than those sourced from GitHub. The learned rules and analyzer in binnacle can be used to aid developers in the IDE when creating Dockerfiles, and in a post-hoc fashion to identify issues in, and to improve, existing Dockerfiles.
description: Published in ICSE'2020
There is life in the old horse yet or what else we can learn studying spin-1/2 XY chains
Creators: name: Derzhko, Oleg
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We review some recent results on statistical mechanics of the one-dimensional spin-1/2 XY systems paying special attention to the dynamic and thermodynamic properties of the models with Dzyaloshinskii-Moriya interaction, correlated disorder, and regularly alternating Hamiltonian parameters.
description: 21 pages, 4 figures
Capabilities and Contributions of Unwed Fathers
Creators: name: Lerman, Robert
Publisher: name: American University
Year: 2023

description: Young, minority, and poorly educated fathers in fragile families have little capacity to support their children nancially and are hard-pressed to maintain stability in raising those children. In this article, Robert Lerman examines the capabilities and contributions of unwed fathers, how their capabilities and contributions fall short of those of married fathers, how those capabilities and contributions differ by the kind of relationship the fathers have with their child’s mother, and how they change as infants grow into toddlers and kindergartners. Unwed fathers’ employment and earnings vary widely among groups but generally rise over time. At the child’s birth, cohabiting fathers earn nearly 20 percent more than noncohabiting unwed fathers, and the gap widens over time. Still, ve years after an unwed birth, the typi- cal unwed father is working full time for the full year. Although most unwed fathers spend considerable time with their children in the years soon after birth, explains Lerman, over time their involvement erodes. Men who lose touch with their children are likely to see their earn- ings stagnate, provide less nancial support, and often face new obligations when they father children with another partner. By contrast, the unwed fathers who marry or cohabit with their child’s mother earn considerably higher wages and work substantially more than unwed fathers who do not marry or cohabit. These results suggest that unwed fathers’ earnings are affected by family relationships as well as their education and work experience. Lerman notes that several factors in uence the extent to which unwed fathers stay involved with their children. Better-educated fathers, those who most identify with the father’s role, and those with good relationships with the child’s mother, are most likely to sustain a relationship with their children. Some studies even nd that strong child support enforcement increases father involvement. For many years, policy makers approached the problem of noncustodial, unwed fathers on a single track—by trying to increase their child support payments. Today’s policy makers are recognizing the limits of that strategy. New programs focus on improving the relationship and communication skills of unwed fathers. In addition, targeted training pro- grams, such as apprenticeships, enable unwed fathers to earn a salary while they learn skills.