cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Protein dynamics and molecular motions study in relation tomolecular interaction between DsrAB and DsrC proteins from sulfur oxidizer proteobacteria Allochromatium vinosum
Creators: name: Semanti Ghosh
name: Angshuman Bagchi
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Computational Biology

description: The gamma-proteobacteria Allochromatium vinosum DSM 180T (A. vinosum) encodes the sulfur oxidizing dsr operon comprising of 15 genes. Dsr proteins are involved in oxidation of sulfur globules produced as an obligatory intermediate during the sulfur oxidation process. The dsrA and dsrB gene products are known to function as a α2β2 hetero-tetramer and the protein complex plays the catalytic role in sulfur oxidation process. DsrC has a highly conserved C-terminal domain that forms a flexible arm, where two strictly conserved cysteines were found to act as a substrate donating residue for DsrAB instead of being a subunit of this redox enzyme. Therefore, to elucidate the molecular mechanism of the sulfur oxidation process here an attempt was made to study the dynamics, stability and binding mechanisms of DsrAB and DsrC proteins through computational docking and molecular dynamics (MD) simulations. This structure function relationship investigation revealed that the C-terminal domain of DsrC interacts with DsrA of DsrAB protein complex for catalytic functions. Some basic amino acid residues of DsrC are found to form the catalytic pockets along with DsrAB protein complex where the sulfur anions bind to get oxidized. Structural dynamics and fluctuations as well as the secondary structural alterations study revealed the possible regions responsible for protein-protein interactions. Principal Component Analysis (PCA) of protein motions displayed that the collective motions of DsrAB-DsrC complex was higher and more anti-correlated than the unbound DsrAB form. The present molecular insight study would therefore help researchers to predict the plausible biochemical mechanism of sulfur oxidation process in sulfur metabolic pathways in near future.
Asymfast, a method for convolving maps with asymmetric main beams
Creators: name: Tristram, M.
name: Hamilton, J. -C.
name: Macias-Perez, J. F.
name: Renault, C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a fast and accurate method to perform the convolution of a sky map with a general asymmetric main beam along any given scanning strategy. The method is based on the decomposition of the beam as a sum of circular functions, here Gaussians. It can be easily implemented and is much faster than pixel-by-pixel convolution. In addition, Asymfast can be used to estimate the effective circularized beam transfer functions of CMB instruments with non-symmetric main beam. This is shown using realistic simulations and by comparison to analytical approximations which are available for Gaussian elliptical beams. Finally, the application of this technique to Archeops data is also described. Although developped within the framework of Cosmic Microwave Background observations, our method can be applied to other areas of astrophysics.
description: 9 pages, 4 figures, Phys. Rev. D, in press
Relativistic resonances, relativistic Gamow vectors and representations of the Poincare semigroup
Creators: name: Bohm, Arno R.
name: Harshman, Nathan
name: Mithaiwala, M.J.
Publisher: name: American University
Year: 2023

description: The foundations of time asymmetric quantum theory are reviewed and are applied to the construction of relativistic Gamow vectors. Relativistic Gamow vectors are obtained from the resonance pole of the S-matrix and furnish an irreducible representation of the Poincar´e semigroup. They have all the prop- erties needed to represent relativistic quasistable particles and can be used to fix the definition of mass and width of relativistic resonances like the Z-boson. Most remarkably, they have only a semigroup time evolution into the forward light cone—expressing time asymmetry on the microphysical level.
Determinants of emotional regulation among marketing staff in the Jordanian banking sector
Creators: name: Al-Zyoud, Mohammad Fahmi
name: Al-Zyoud, Mohammad Fahmi
Publisher: name: Unknown
Year: 2016
Subjects: subject: Financial Economics
subject: Labor and Human Capital
subject: Marketing, sales
subject: emotional regulation
subject: cognitive flexibility
subject: mindfulness
subject: response inhibition
subject: Jordan
subject: banking sector

description: This study empirically verifies the determinants of emotional regulation as observed among marketing staff in the Jordanian banking sector. In particular, it examines the relationship between participants’ cognitive flexibility capabilities, their levels of response inhibition and their levels of mindfulness on the degree of emotional regulation they exhibited. Data was collected from a sample of 120 respondents who were administered four standardized survey questionnaires. Multiple linear regression was used to analyze the data, and results show no significant relationship between cognitive flexibility, inhibition levels, and a combination of both factors on emotional regulation. However, it found that mindfulness had a low but significant and positive relationship with emotional regulation.
Dormancy and endosperm presence influence the ex-situ conservation potential in central European calcareous grassland plants
Creators: name: Tausch, Simone
name: Leipold, Martin
name: Reisch, Christoph
name: Poschlod, Peter
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: ageing, seed longevity, p50, grassland, LiCl, physiological dormancy, physical dormancy
subject: 580 Pflanzen (Botanik)

description: The preservation of plant species under ex situ conditions in seed banks strongly depends on seed longevity. However, detailed knowledge on this seed ecological aspect is limited and comparative studies from Central European habitats are scarce. Therefore, we investigated the seed longevity of 39 calcareous grassland species in order to assess the prospects of ex situ storage of seeds originating from a single, strongly threatened habitat. Seed longevity (p50) was determined by artificially ageing the seeds under rapid ageing conditions (45°C and 60% eRH), testing for germination and calculating survival curves. We consulted seed and germination traits that are expected to be related to seed longevity. P50 values strongly varied within calcareous grassland species. The p50 values ranged between 3.4 and 282.2 days. We discovered significantly positive effects of physical dormancy and endosperm absence on p50. Physiological dormancy was associated to comparatively short longevity. These relationships remained significant when accounting for phylogenetic effects. Seed mass, seed shape and seed coat thickness were not associated with longevity. We therefore recommend more frequent viability assessments of stored endospermic, non-physically and physiologically dormant seeds.
Relativistic resonances, relativistic Gamow vectors and representations of the Poincare semigroup
Creators: name: Bohm, Arno R.
name: Harshman, Nathan
name: Mithaiwala, M.J.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: The foundations of time asymmetric quantum theory are reviewed and are applied to the construction of relativistic Gamow vectors. Relativistic Gamow vectors are obtained from the resonance pole of the S-matrix and furnish an irreducible representation of the Poincar´e semigroup. They have all the prop- erties needed to represent relativistic quasistable particles and can be used to fix the definition of mass and width of relativistic resonances like the Z-boson. Most remarkably, they have only a semigroup time evolution into the forward light cone—expressing time asymmetry on the microphysical level.
Spitzer 70 and 160-micron Observations of the Extragalactic First Look Survey
Creators: name: Frayer, D. T.
name: Fadda, D.
name: Yan, L.
name: Marleau, F. R.
name: Choi, P. I.
name: Helou, G.
name: Soifer, B. T.
name: Appleton, P. N.
name: Armus, L.
name: Beck, R.
name: Dole, H.
name: Engelbracht, C. W.
name: Fang, F.
name: Gordon, K. D.
name: Heinrichsen, I.
name: Henderson, D.
name: Hesselroth, T.
name: Im, M.
name: Kelly, D. M.
name: Lacy, M.
name: Laine, S.
name: Latter, W. B.
name: Mahoney, W.
name: Makovoz, D.
name: Masci, F. J.
name: Morrison, J. E.
name: Moshir, M.
name: Noriega-Crespo, A.
name: Padgett, D. L.
name: Pesenson, M.
name: Shupe, D. L.
name: Squires, G. K.
name: Storrie-Lombardi, L. J.
name: Surace, J. A.
name: Teplitz, H. I.
name: Wilson, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Spitzer 70um and 160um observations of the Spitzer extragalactic First Look Survey (xFLS). The data reduction techniques and the methods for producing co-added mosaics and source catalogs are discussed. Currently, 26% of the 70um sample and 49% of the 160um-selected sources have redshifts. The majority of sources with redshifts are star-forming galaxies at z<0.5, while about 5% have infrared colors consistent with AGN. The observed infrared colors agree with the spectral energy distribution (SEDs) of local galaxies previously determined from IRAS and ISO data. The average 160um/70um color temperature for the dust is Td~= 30+/-5 K, and the average 70um/24um spectral index is alpha~= 2.4+/-0.4. The observed infrared to radio correlation varies with redshift as expected out to z~1 based on the SEDs of local galaxies. The xFLS number counts at 70um and 160um are consistent within uncertainties with the models of galaxy evolution, but there are indications that the current models may require slight modifications. Deeper 70um observations are needed to constrain the models, and redshifts for the faint sources are required to measure the evolution of the infrared luminosity function.
description: 16 pages including 11 figures. Accepted AJ
Tensor product structures, entanglement, and particle scattering
Creators: name: Harshman, Nathan
name: Wickramasekara, S.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Particle systems admit a variety of tensor product structures (TPSs) depending on the complete system of commuting observables chosen for the analysis. Different notions of entanglement are associated with these different TPSs. Global symmetry transformations and dynamical transformations factor into products of local unitary operators with respect to certain TPSs and not with respect to others. Symmetry-invariant and dynamical-invariant TPSs and corresponding measures of entanglement are defined for particle scattering systems.
Supersolid versus Phase Separation in Atomic Bose-Fermi Mixture
Creators: name: Büchler, H. P.
name: Blatter, G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that a two-dimensional atomic mixture of Bosons and Fermions cooled into their quantum degenerate states and subject to an optical lattice develops a supersolid phase characterized by the simultaneous presence of a non-trivial crystalline order and phase order. This transition is in competition with a phase separated ground state. We determine the phase diagram of the system and propose an experiment allowing for the observation of the supersolid phase.
description: 4 pages, 3 figures
Effect of Andragogical Approach on the Academic Performance of Psychology Learners in Open University Malaysia (OUM)
Creators: name: Mohamed, Noor Hassline
Publisher: name: figshare
Year: 2020
Subjects: Developmental and Educational Psychology
Applied Psychology

description: The study is attempts to investigate the effectiveness of andragogical approach employed by tutors on academic achievement of adult learners. The objective of the study is to measure if there are any significant differences in the learners ‘academic performances due to the individual capability in delivering the subject content. The study is analysed by an independent- samples t-test which conducted to compare learners score on the subject. This study initiated to compare the consequence of content delivery by two different background tutors. The samples chosen for this study are the second-year undergraduates for the subject Abnormal Psychology in Open University Malaysia (OUM). The sample size consisted of 48 learners who were randomly assigned to experimental group and control group, each consisting of 24 learners. The two tutors chosen for this study are, a tutor of andragogical approach (Tutor A) who completed the nine modules of Postgraduate Certificate in Open and Distance Learning (PGCert ODL) which involve a total of 400 learning hours preparing her for effective andragogical teaching skills for adult learners. The Tutor A is consigned as experimental group, while Tutor B is assigned to be in control group and was teaching the subject for the past 7 years without any certificate in teaching in open and distance learning skills. At the end of the semester, both groups were tested with a set of subjective tests to measure their understanding and knowledge of the subject. The findings showed that there was a significant difference in the scores for experimental group (M=57.17, SD= 14.12) and control group (37.92,SD=10.35), t (23)=9.25, p= 0.001.These results provided evidence that learners taught by andragogical approach consumed by Tutor A showed better score as compared to the control group. The vital outcome of the study is that a tutor with familiarity and trained in teaching in open and distance learning extent would be able to deliver the content effectively. It is proven that steps taken by OUM to progress internal academics had given a rewarding outcome in terms of learner’s academic achievement.
The Partner Does Matter: The Structure of Heteroaggregates of Acridine Orange in Water
Creators: name: Shenderovich, Ilya G.
Publisher: name: Universität Regensburg
Year: 2019
Subjects: subject: NMR spectroscopy; self-assembly; nitrogen heterocycles; fluorescent probes
subject: 540 Chemie

description: Self-assembly of organic molecules in aqueous solutions is governed by a delicate entropy/enthalpy balance. Even small changes in their intermolecular interactions can cause critical changes in the structure of the aggregates and their spectral properties. The experimental results reported here demonstrate that protonated cations of acridine orange, acridine, and acridin-9-amine form stable J-heteroaggregates when in water. The structures of these aggregates are justified by the homonuclear 1H cross-relaxation nuclear magnetic resonance (NMR). The absorption and fluorescence of these aggregates deviate characteristically from the known H-homoaggregates of the protonated cations of acridine orange. The latter makes acridine orange a handy optical sensor for soft matter studies.
Twisting Null Geodesic Congruences and the Einstein-Maxwell Equations
Creators: name: Newman, Ezra T.
name: Silva-Ortigoza, Gilberto
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The purpose of the present work is to extend the earlier results for asymptotically flat vacuum space-times to asymptotically flat solutions of the Einstein-Maxwell equations. Once again, in this case, we get a class of asymptotically shear-free null geodesic congruences depending on a complex world-line in the same four-dimensional complex space. However in this case there will be, in general, two distinct but uniquely chosen world-lines. One of which can be assigned as the complex center-of- charge while the other could be called the complex center of mass. Rather than investigating the situation where there are two distinct complex world-lines, we study instead the special degenerate case where the two world-lines coincide, i.e., where there is a single unique world-line. This mimics the case of algebraically special Einstein-Maxwell fields where the degenerate principle null vector of the Weyl tensor coincides with a Maxwell principle null vector. Again we obtain equations of motion for this world-line - but explicitly found here only in an approximation. Though there are ambiguities in assigning physical meaning to different terms it appears as if reliance on the Kerr and charged Kerr metrics and classical electromagnetic radiation theory helps considerably in this identification. In addition, the resulting equations of motion appear to have many of the properties of a particle with intrinsic spin and an intrinsic magnetic dipole moment. At first order there is even the classical radiation-reaction term 2/3{q^{2}}{c^{-3}}ddot{v}, now obtained without any use of the Lorentz force law but obtained directly from the asymptotic fields themselves. One even sees the possible suppression, via the Bondi mass loss, of the classical runaway solutions due to the radiation reaction force.
MCFlow: Monte Carlo Flow Models for Data Imputation
Creators: name: Richardson, Trevor W.
name: Wu, Wencheng
name: Lin, Lei
name: Xu, Beilei
name: Bernal, Edgar A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We consider the topic of data imputation, a foundational task in machine learning that addresses issues with missing data. To that end, we propose MCFlow, a deep framework for imputation that leverages normalizing flow generative models and Monte Carlo sampling. We address the causality dilemma that arises when training models with incomplete data by introducing an iterative learning scheme which alternately updates the density estimate and the values of the missing entries in the training data. We provide extensive empirical validation of the effectiveness of the proposed method on standard multivariate and image datasets, and benchmark its performance against state-of-the-art alternatives. We demonstrate that MCFlow is superior to competing methods in terms of the quality of the imputed data, as well as with regards to its ability to preserve the semantic structure of the data.
Equation-free modeling of evolving diseases: Coarse-grained computations with individual-based models
Creators: name: Cisternas, Jaime
name: Gear, C. William
name: Levin, Simon
name: Kevrekidis, Ioannis G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We demonstrate how direct simulation of stochastic, individual-based models can be combined with continuum numerical analysis techniques to study the dynamics of evolving diseases. % Sidestepping the necessity of obtaining explicit population-level models, the approach analyzes the (unavailable in closed form) `coarse' macroscopic equations, estimating the necessary quantities through appropriately initialized, short `bursts' of individual-based dynamic simulation. % We illustrate this approach by analyzing a stochastic and discrete model for the evolution of disease agents caused by point mutations within individual hosts. % Building up from classical SIR and SIRS models, our example uses a one-dimensional lattice for variant space, and assumes a finite number of individuals. % Macroscopic computational tasks enabled through this approach include stationary state computation, coarse projective integration, parametric continuation and stability analysis.
description: 16 pages, 8 figures
Equivocidades e incertezas de requisitos de informação na gestão de biblioteca universitária
Creators: name: Rocha, Rafael
name: Francinara Da Costa Cândido
name: Ribeiro, Nivaldo Calixto
Publisher: name: figshare
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Incertezas e equivocidade na gestão de bibliotecas podem ser consideradas forças que impactam estrategicamente no processamento da informação e na prestação dos seus serviços.
Tensor product structures, entanglement, and particle scattering
Creators: name: Harshman, Nathan
name: Wickramasekara, S.
Publisher: name: American University
Year: 2023

description: Particle systems admit a variety of tensor product structures (TPSs) depending on the complete system of commuting observables chosen for the analysis. Different notions of entanglement are associated with these different TPSs. Global symmetry transformations and dynamical transformations factor into products of local unitary operators with respect to certain TPSs and not with respect to others. Symmetry-invariant and dynamical-invariant TPSs and corresponding measures of entanglement are defined for particle scattering systems.
Chaos in a closed Friedmann-Robertson-Walker universe: An imaginary approach
Creators: name: Jorás, S. E.
name: Stuchi, T. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this work we study the existence of mechanisms of transition to global chaos in a closed Friedmann-Robertson-Walker universe with a massive conformally coupled scalar field. We propose a complexification of the radius of the universe so that the global dynamics can be understood. We show numerically the existence of heteroclinic connections of the unstable and stable manifolds to periodic orbits associated to the saddle-center equilibrium points. We find two bifurcations which are crucial in creating non-collapsing universes both in the real and imaginary version of the models. The techniques presented here can be employed in any cosmological model.
description: 11 pages, 27 figures. Corrected some references and typos
Optical spectroscopic observations of gamma-ray blazar candidates. X. Results from the 2018--2019 SOAR and OAN-SPM observations of blazar candidates of uncertain type
Creators: name: de Menezes, Raniere
name: Amaya-Almazán, Raul A.
name: Marchesini, Ezequiel J.
name: Peña-Herazo, Harold A.
name: Massaro, Francesco
name: Chavushyan, Vahram
name: Paggi, Alessandro
name: Landoni, Marco
name: Masetti, Nicola
name: Ricci, Federica
name: D'Abrusco, Raffaele
name: La Franca, Fabio
name: Smith, Howard A.
name: Milisavljevic, Daniel
name: Tosti, Gino
name: Jiménez-Bailón, Elena
name: Cheung, Teddy
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The fourth Fermi Large Area Telescope Source Catalog (4FGL) lists over 5000 gamma-ray sources with statistical significance above 4$σ$. About 23% of the sources listed in this catalog are unidentified/unassociated gamma-ray sources while ~26% of the sources are classified as blazar candidates of uncertain type (BCUs), lacking optical spectroscopic information. To probe the blazar nature of candidate counterparts of UGSs and BCUs, we started our optical spectroscopic follow up campaign in 2012, which up to date account for more than 350 observed sources. In this paper, the tenth of our campaign, we report on the spectroscopic observations of 37 sources, mostly BCUs, whose observations were carried out predominantly at the Observatorio Astronómico Nacional San Pedro Mártir and the Southern Astrophysical Research Observatory between August 2018 and September 2019. We confirm the BL Lac nature of 27 sources and the flat spectrum radio quasar nature of three sources. The remaining ones are classified as six BL Lacs galaxy-dominated and one normal galaxy. We were also able to measure the redshifts for 20 sources, including 10 BL Lacs. As in previous analyses, the largest fraction of BCUs revealed to be BL Lac objects.
description: 24 pages, 14 figures, 3 tables (Pre-proof version)
Discrete breathers for understanding reconstructive mineral processes at low temperatures
Creators: name: Archilla, J. F. R.
name: Cuevas, J
name: Alba, M. D.
name: Naranjo, M.
name: Trillo, J. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Reconstructive transformations in layered silicates need a high tem- perature in order to be observed. However, very recently, some systems have been found where transformation can be studied at temperatures 600 C below the lowest experimental results previously reported, including sol-gel methods. We explore the possible relation with the existence of intrinsic localized modes, known as discrete breathers. We construct a model for nonlinear vibrations within the cation layer, obtain their parameters and calculate them numerically, obtaining their energies. Their statistics shows that although there are far less breathers than phonons, there are much more above the activation energy, being therefore a good candidate to explain the reconstructive transformations at low temperature.
description: 27 pages, 11 figures
Visualizing the mass and width spectrum of unstable particles
Creators: name: Harshman, Nathan
Publisher: name: American University
Year: 2023

description: Several graphical representations of the mass and width spectrum of unstable subatomic particles are presented. Such plots are useful tools for introducing students to the particle zoo and provide students an alternate way to organize conceptually what can seem like an overwhelming amount of data. In particular, such graphs highlight phenomenological features of unstable particles characteristic of different energy and time scales.
Visualizing the mass and width spectrum of unstable particles
Creators: name: Harshman, Nathan
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Several graphical representations of the mass and width spectrum of unstable subatomic particles are presented. Such plots are useful tools for introducing students to the particle zoo and provide students an alternate way to organize conceptually what can seem like an overwhelming amount of data. In particular, such graphs highlight phenomenological features of unstable particles characteristic of different energy and time scales.
Threshold convergence between the federal fund rate and South African equity returns around the colocation period
Creators: name: Phiri, Andrew
name: Phiri, Andrew
Publisher: name: Unknown
Year: 2017
Subjects: subject: Financial Economics
subject: Risk and Uncertainty
subject: Colocation
subject: high frequency trading
subject: global financial crisis
subject: Federal fund rates
subject: equity returns
subject: threshold cointegration
subject: Johannesburg Stock Exchange (JSE)

description: Using weekly data collected from 20.09.2008 to 09.12.2016, this paper uses dynamic threshold adjustment models to demonstrate how the introduction of high-frequency and algorithmic trading on the Johannesburg Stock Exchange (JSE) has altered convergence relations between the federal fund rate and equity returns for aggregate and disaggregate South African market indices. We particularly find that for the post-crisis period, the JSE appears to operate more efficiently, in the weak-form sense, under high frequency trading platforms.
An Exploratory Study of Bot Commits
Creators: name: Dey, Tapajit
name: Vasilescu, Bogdan
name: Mockus, Audris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Background: Bots help automate many of the tasks performed by software developers and are widely used to commit code in various social coding platforms. At present, it is not clear what types of activities these bots perform and understanding it may help design better bots, and find application areas which might benefit from bot adoption. Aim: We aim to categorize the Bot Commits by the type of change (files added, deleted, or modified), find the more commonly changed file types, and identify the groups of file types that tend to get updated together. Method: 12,326,137 commits made by 461 popular bots (that made at least 1000 commits) were examined to identify the frequency and the type of files added/ deleted/ modified by the commits, and association rule mining was used to identify the types of files modified together. Result: Majority of the bot commits modify an existing file, a few of them add new files, while deletion of a file is very rare. Commits involving more than one type of operation are even rarer. Files containing data, configuration, and documentation are most frequently updated, while HTML is the most common type in terms of the number of files added, deleted, and modified. Files of the type "Markdown", "Ignore List", "YAML", "JSON" were the types that are updated together with other types of files most frequently. Conclusion: We observe that majority of bot commits involve single file modifications, and bots primarily work with data, configuration, and documentation files. A better understanding if this is a limitation of the bots and, if overcome, would lead to different kinds of bots remains an open question.
Angular Correlations of the MeV Cosmic Gamma Ray Background
Creators: name: Zhang, Pengjie
name: Beacom, John F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The measured cosmic gamma ray background (CGB) spectrum at MeV energies is in reasonable agreement with the predicted contribution from type Ia supernovae (SNIa). But the characteristic features in the SNIa gamma ray spectrum, weakened by integration over source redshifts, are hard to measure, and additionally the contributions from other sources in the MeV range are uncertain, so that the SNIa origin of the MeV CGB remains unproven. Since different CGB sources have different clustering properties and redshift distributions, by combining the CGB spectrum and angular correlation measurements, the contributions to the CGB could be identified and separated. The SNIa CGB large-scale structure follows that of galaxies. Its rms fluctuation at degree scales has a characteristic energy dependence, ranging from $\sim 1%$ to order of unity and can be measured to several percent precision by proposed future satellites such as the Advanced Compton Telescope. With the identification of the SNIa contribution, the SNIa rate could be measured unambiguously as a function of redshift up to $z \sim 1$, by combining both the spectrum and angular correlation measurements, yielding new constraints on the star formation rate to even higher redshifts. Finally, we show that the gamma ray and neutrino backgrounds from supernovae should be closely connected, allowing an important consistency test from the measured data. Identification of the astrophysical contributions to the CGB would allow much greater sensitivity to an isotropic high-redshift CGB contribution arising in extra dimension or dark matter models.
description: 6 pages, 3 figures. ApJ, (2004), 614, 37
Microeconomic impact of remittances on household welfare: Evidences from Bangladesh
Creators: name: Wadood, Syed Naimul
name: Hossain, Amzad
name: Wadood, Syed Naimul
name: Hossain, Amzad
Publisher: name: Unknown
Year: 2017
Subjects: subject: Consumer/Household Economics
subject: International Relations/Trade
subject: Remittances
subject: migration
subject: Bangladesh
subject: propensity score matching

description: This paper investigates effects of both international and domestic remittances and migration on household welfare in Bangladesh. We employ a number of variables such as different types of poverty measures, household consumption expenditure, expenditures on health and education, food calorie intake etc. to define household welfare. We use the Bangladesh Household Income and Expenditure Survey 2010 data to estimate impact of remittances on household welfare. To address the issue of self-selection associated with migration decision and thus scope for receiving remittances, we have used the Propensity Score Matching (PSM) technique. The econometric results reveal that although both internal and external remittances have statistically significant impact on reducing poverty and increasing consumption expenditure, the degree of impact is much higher for external remittances compared to internal remittances. However we find no impact of remittances on household expenditure on education and health care. Given subsidized public provision of education and healthcare in the rural areas, remittance-recipient households may need not spend higher amounts compared to non-remittance-recipient households, or they may not have sufficient scopes for spending more on human capital investments like education and health care.
Analytical solutions and criteria for the quantum discord of two-qubit X-states
Creators: name: Maldonado-Trapp, A.
name: Roa, Luis
name: Hu, Anzi
Publisher: name: American University
Year: 2023

description: Except for a few special states, computing quantum discord remains a complicated optimization process. In this paper we present analytical solutions for computing quantum discord of the most general class of X-states and the criteria for each analytical solution to be valid. We discuss parameter regions that correspond to different analytical solutions and explain the underlying reasons for such structure to exist. We apply our formalism to study both arbitrary X-states and X-states with certain symmetries. We find that our analytical formalism is in excellent agreement with numerical calculation of quantum discord in both cases.
title: Unravelling the politics of framing: The Clonbrock photographic collection
Creators: name: Kavanagh, Margaret Úna
Publisher: name: University of Galway
Year: 2025
Subjects: subject: Clonbrock
subject: Clonbrock Photographic Collection
subject: Early Irish Photography
subject: Photography
subject: Augusta Caroline Dillon
subject: Arts, Social Sciences & Celtic Studies
subject: Geography, Archaeology & Irish Studies
subject: Irish Studies

description: This interdisciplinary Irish Studies research examines the Clonbrock Photographic Collection (CPC) housed at the National Library of Ireland’s photographic archive. Of the CPC’s 3,000 images, 2,149 have been digitised. This collection spans the turbulent period of Irish history from the 1860s to the 1930s. This collection is the largest of the four early Irish photograph collections in the NLI. It is comprised of glass plate negatives, photograph albums and lantern slides. These form the collection of the Dillon family of Clonbrock, County Galway and the Crofton family of nearby Mote Park. Each was Protestant, Southern Unionist, loyal to the British Empire, and with a shared interest in photography. In examining the collection, the salient question in exploring each image is frequently not just about “what is in the frame?” but also “what is left out?”. The CPC is a historically valuable visual contribution to Ireland’s cultural heritage. Its images are important aides and additions to facilitate a more nuanced understanding of the complexity and duality of Irish life from the distinct vantage point of an Anglo-Irish landlord family. An empirical study of the photograph collection and estate papers has shown that politics surrounds the practice of photography, whether through national pride or the expression of self, as well as familial and socio-economic Anglo-Irish identity in Ireland of this period. Frequently exhibiting visual politics, the photographers associated with the CPC, often used photography to foster and demonstrate a connection with family, friends, and those in and around the estate at Clonbrock. As argued here, they used their photographs to uphold their status as Anglo-Irish progressive, modern, improving resident landlords while remaining deeply attached to the British Empire. The CPC images further illustrate the philanthropic and community engagement of the women and men of the Clonbrock family, illustrating the sense of duty and service of which they were conscious in their roles. Many scholars consider Augusta Caroline Dillon (née Crofton), who became Lady Clonbrock in 1893, the principal photographer connected to the CPC. This research supports this argument and highlights the significant impact of her life’s work, showing her to be an important, although under-researched, figure in Irish history.
A Dataset and an Approach for Identity Resolution of 38 Million Author IDs extracted from 2B Git Commits
Creators: name: Fry, Tanner
name: Dey, Tapajit
name: Karnauch, Andrey
name: Mockus, Audris
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The data collected from open source projects provide means to model large software ecosystems, but often suffer from data quality issues, specifically, multiple author identification strings in code commits might actually be associated with one developer. While many methods have been proposed for addressing this problem, they are either heuristics requiring manual tweaking, or require too much calculation time to do pairwise comparisons for 38M author IDs in, for example, the World of Code collection. In this paper, we propose a method that finds all author IDs belonging to a single developer in this entire dataset, and share the list of all author IDs that were found to have aliases. To do this, we first create blocks of potentially connected author IDs and then use a machine learning model to predict which of these potentially related IDs belong to the same developer. We processed around 38 million author IDs and found around 14.8 million IDs to have an alias, which belong to 5.4 million different developers, with the median number of aliases being 2 per developer. This dataset can be used to create more accurate models of developer behaviour at the entire OSS ecosystem level and can be used to provide a service to rapidly resolve new author IDs.
Precision Agriculture in Ontario: 2017 Precision Agriculture Services Dealership Survey
Creators: name: Mitchell, Sean
name: Weersink, Alfons
name: Erickson, Bruce
name: Mitchell, Sean
name: Weersink, Alfons
name: Erickson, Bruce
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: precision agriculture
subject: technology adoption

description: Agricultural service providers affiliated with the Ontario Agri Business Association (OABA) were surveyed on the extent to which their businesses use precision agricultural technologies for crop inputs purchased by farmers in Ontario. Approximately half of the fertilizers and pesticides sold by these companies are custom applied on land managed by the buyer of the inputs and nearly half of the respondents custom apply crop inputs on over 50,0000 acres. An indication of the wide spread use of precision agriculture in some form for crop production is that only 4% of respondents report not using precision agriculture at all within their business. The most popular use of the technology within the businesses and in their custom application services are GPS autosteer systems and precision spraying technology to minimize overlap and to ensure complete coverage. In addition to guidance systems, other geographic services widely used were the field mapping and soil sampling. Variable rate technologies are not adopted to the same extent as the geographic category of innovations but do hold promise. Many pieces of information ranging from geo-physical to climatic to production to economic are necessary to generate a prescription for the variable application of inputs to reap the benefits. The difficulty of constructing, collecting, maintaining and sharing data limit the opportunity to derive effective decision rules with high information value to producers. Enhancing the adoption of non-GPS precision agriculture technologies will require turning the vast amount of new data collected on crop production into manageable and valuable decisions for the farmer.
Branch-and-Bound Method for Just-in-Time Optimization of Radar Search Patterns
Creators: name: Briheche, Yann
name: Barbaresco, Frédéric
name: Bennis, Fouad
name: Chablat, Damien
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optimization and Control (math.OC)
subject: Robotics (cs.RO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Electronic phased-array radars offer new possibilities for radar search pattern optimization by using bi-dimensional beam-forming and beam-steering. Radar search pattern optimization can be approximated as a set cover problem and solved using integer programming, while accounting for localized clutter and terrain masks in detection constraints. We present a set cover problem approximation for time-budget minimization of radar search patterns, under constraints of range, detection probability and direction-specific scan update rates. Branch\&Bound is a classical optimization procedure for solving combinatorial problems. It is known mainly as an exact algorithm, but features interesting characteristics, making it particularly fit for solving optimization problems in real-time applications and producing just-in-time solutions.
title: Proclaiming the Peacemaker : The Malaysian church as an agent of reconciliation in a multicultural society
Creators: name: Rowan, Peter Alexander
Publisher: name: The Open University
Year: 2011

description: With a history of racial violence and in recent years, low-level ethnic tensions, the themes of peaceful coexistence and social harmony are recurring ones in the discourse of Malaysian society. In such a context, we consider the role of the church as a reconciling agent. We begin by setting out a prima facie case for the doctrine of reconciliation. Interacting with the works of various scholars the main contours of reconciliation are traced, underlining it as a central New Testament theme. Recent years have seen the emergence of missiological readings of reconciliation, and a paradigm of mission in which the social implications of reconciliation highlight the importance of the local church as an agent of peace. Insight into the socio-political context of Malaysia is gained from a survey questionnaire which draws our attention to the relative absence of peacemaking initiatives at the local church level. Seven key themes emerge from the survey results, and the seventh - that of identity, is the key theme to be reckoned with if Malaysian churches are to be agents of reconciliation. This thesis argues that a reconciling presence within a divided society like Malaysia necessitates an ethos of peacemaking. This is created and sustained when Christians understand that their identity has been transformed in Jesus Christ. Our aim will be to demonstrate that being an agent of reconciliation is directly linked to our effectiveness in bearing witness to an identity given by Christ. The concluding section draws from the work of Dietrich Bonhoeffer to support the idea that peace is created as a result of the integration of the self and sustained not in isolation but in fellowship with our neighbour.
Analytical solutions and criteria for the quantum discord of two-qubit X-states
Creators: name: Maldonado-Trapp, A.
name: Roa, Luis
name: Hu, Anzi
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: Except for a few special states, computing quantum discord remains a complicated optimization process. In this paper we present analytical solutions for computing quantum discord of the most general class of X-states and the criteria for each analytical solution to be valid. We discuss parameter regions that correspond to different analytical solutions and explain the underlying reasons for such structure to exist. We apply our formalism to study both arbitrary X-states and X-states with certain symmetries. We find that our analytical formalism is in excellent agreement with numerical calculation of quantum discord in both cases.
Exploring the spectrum of QCD using a space-time lattice
Creators: name: Morningstar, Colin
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Some past and ongoing explorations of the spectrum of QCD using Monte Carlo simulations on a space-time lattice are described. Glueball masses in the pure-gauge theory are reviewed, and the energies of gluonic excitations in the presence of a static quark-antiquark pair are discussed. Current efforts to compute the baryon spectrum using extended three-quark operators are also presented, emphasizing the need to use irreducible representations of the cubic point group to identify spin quantum numbers in the continuum limit.
description: 4 pages, 3 figures, talk presented at the International Conference on QCD and Hadronic Physics, Peking University, Beijing, China, Jun 16-20, 2005
Detecting paired and counterflow superfluidity via dipole oscillations
Creators: name: Hu, Anzi
name: Mathey, L.
name: Tiesinga, Eite
name: Danshita, Ippei
name: Williams, Carl J.
name: Clark, Charles W.
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences

description: We suggest an experimentally feasible procedure to observe paired and counterflow superfluidity in ultra-cold atom systems. We study the time evolution of one-dimensional mixtures of bosonic atoms in an optical lattice following an abrupt displacement of an additional weak confining potential. We find that the dynamic responses of the paired superfluid phase for attractive inter-species interactions and the counterflow superfluid phase for repulsive interactions are qualitatively distinct and reflect the quasi long-range order that characterizes these phases. These findings suggest a clear experimental procedure for their detection, and give an intuitive insight into their dynamics.
The role of environmental management accounting and voluntary self-regulatory initiatives in improving resource efficiency in South African hotels
Creators: name: Nyide, Celani John
name: Nyide, Celani John
Publisher: name: Unknown
Year: 2017
Subjects: subject: Industrial Organization
subject: Environmental management accounting
subject: resource efficiency
subject: South African hotels
subject: voluntary self-regulatory initiatives

description: The hotel sector is linked to the excessive consumption of non-renewable resources, particularly water, energy and non-durable goods. Several hotel groups have developed voluntary self-regulatory initiatives that are aimed at improving the resource. Currently, there is limited research pertaining to the application of EMA and voluntary initiatives, particularly in the hotel sector. As a result, the implementation and application process of these initiatives remains unclear. A qualitative exploratory multiple case study research method was employed in this study. A total of 12 individuals participated in this study, which consisted of 3 general managers, 3 financial managers, 3 maintenance managers, from 4 hotels. The sample size was selected using purposive sampling. The study found that there is a fair amount of awareness, knowledge and experience of the EMA and the use of voluntary self-regulatory initiatives by the hotel sector in South Africa. However, the implementation of EMA and voluntary selfregulatory initiatives in the South African hotel sector is still at an elementary stage.