cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
In-Flight Performance of the Advanced Radiation Detector for UAV Operations (ARDUO)
Creators: name: Chen, Carolyn M.
name: Sinclair, Laurel E.
name: Fortin, Richard
name: Coyle, Maurice
name: Samson, Claire
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Natural Resources Canada (NRCan) is responsible for the provision of aerial radiometric surveys in the event of a radiological or nuclear emergency in Canada. Manned aerial surveys are an essential element of the planned consequence management operation, as demonstrated by the recovery work following the 2011 Tohoku earthquake and tsunami, and their effects in Fukushima, Japan. Flying lower and slower than manned aircraft, an unmanned aerial vehicle (UAV) can provide improved spatial resolution. In particular, hot spot activity can be underestimated in manned survey results as the higher flight altitude and wider line spacing effectively average the hot spot over a larger area. Moreover, a UAV can enter an area which is hazardous for humans. NRCan has been investigating the inclusion of UAV-borne radiation survey spectrometers into its aerial survey response procedures. The Advanced Radiation Detector for UAV Operations (ARDUO) was developed to exploit the flight and lift capabilities available in the under 25kg class of UAVs. The detector features eight 2.8cm x 2.8cm x 5.6cm CsI(Tl) crystals in a self-shielding configuration, read out with silicon photomultipliers and digitized using miniaturized custom electronics. The ARDUO is flown on a main- and tail-rotor UAV called Responder which has a 6kg lift capacity and up to 40min. endurance. The performance of the ARDUO-Responder UAV system was characterized in both lab and outdoor trials. Outdoor trials consisted of aerial surveys over sealed point sources and over a distributed source. Results show how the directional response of the ARDUO can provide an indication in real time of source location for in-flight guidance. As well, the results show how use of the directional information in post-acquisition processing can result in improved spatial resolution of radiation features for both point and distributed sources.
description: 24 pages, 8 figures, presented at SORMA XVII 2018 and published in NIMA
title: Земство и музеи: опыт музейно-краеведческой работы в Олонецкой губернии (1871-1916 гг. )
Creators: name: Баданов, Вадим Георгиевич
Publisher: name: Studia Humanitatis
Year: 2019
Subjects: ЗЕМСКИЕ УЧРЕЖДЕНИЯ
МУЗЕЙНОЕ ДЕЛО
ШКОЛЬНЫЙ МУЗЕЙ
КРАЕВЕДЕНИЕ
TERRITORIAL INSTITUTIONS
MUSEUM BUSINESS
SCHOOL MUSEUM
STUDY OF LOCAL LORE

description: В статье рассматривается деятельность земских учреждений Олонецкой губернии по развитию музейного дела в российской глубинке. Музейное дело являлось одним из направлений внешкольного земского образования, и должно было, по мысли земцев, повышать образовательный и культурный уровень населения. Земские музеи создавались как практические просветительные центры для определенных отраслей земской деятельности (для системы народного образования, для помощи сельскому хозяйству, кооперации, медицине и т.д.). Практически в каждом уезде земцами были открыты школьные музеи наглядных пособий, музеи местной природы и быта, «уголки родного края», выставки поделок учащихся, выставки овощей, выращенных на пришкольном участке и т.д. Кроме того, в рамках работы по развитию музейного дела, олонецкие земцы организовывали различные по тематике экспозиции, а также принимали участие во всероссийских и международных выставках.The article considers activities of the Olonets province territorial institutions (zemstvo) for development of museum matter in the Russian remote place. Museum activity was one of the directions of out-of-school territorial education, also according to zemstvo it had to increase the educational and cultural level of the population. The territorial museums were created as the practical educational centers for certain industries of territorial activity, i.e. for the system of national education, for the help to agricultural industry, cooperation, medicine, etc. Practically in each district there were established school museums of visual aids, the museums of the local nature and life, “corners of the native land”, exhibitions of hand-made articles of pupils, and exhibitions of the vegetables which are grown up on the school site. Besides within work on development of museum business, Olonets’ activists organized various expositions and also participated in the All-Russian and international exhibitions.
Additional file 2 of SIME: synthetic insight-based macrolide enumerator to generate the V1B library of 1 billion macrolides
Creators: name: Phyo Phyo Kyaw Zin
name: Williams, Gavin
name: Fourches, Denis
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 2. Table S1: Descriptive Statistics on the Molecular Properties of V1B. Table S2: Calculated MolLogP vs. experimental LogP of some known bioactive macrolides.
Analysis of California hourly end-use residential electricity load shapes
Creators: name: Eto, Joseph H.
name: Ruderman, Henry
name: Golan, Amos
name: Heinemeier, Kristin
name: Wood, David
Publisher: name: Lawrence Berkeley Laboratory
Year: 2023
Subjects: classificationCode: 35
subject: Commerce, management, tourism and services

description: Description to be added
title: Тюрьмы империи: специфические черты Российской пенитенциарной системы в XIX - начале XX вв. (по материалам Олонецкой губернии)
Creators: name: Пулькин, Максим Викторович
Publisher: name: Studia Humanitatis
Year: 2019
Subjects: НАКАЗАНИЯ
ДЕВИАНТНОСТЬ
ПЕНИТЕНЦИАРНАЯ СИСТЕМА
ГУБЕРНСКИЙ ПОПЕЧИТЕЛЬНЫЙ КОМИТЕТ О ТЮРЬМАХ
ТЮРЬМА
СТРАЖА
АРЕСТАНТЫ
PUNISHMENTS
DEVIANCE
THE PENITENTIARY SYSTEM
THE PROVINCIAL GUARDIANSHIP COMMITTEE ON PRISONS
PRISON
GUARDS
PRISONERS

description: В статье рассмотрены основные закономерности формирования пенитенциарной системы в Олонецкой губернии. Выявлены основные проблемы, существовавшие в порядке функционирования тюрем в провинции. Показаны способы взаимодействия различных ведомств в совершенствовании деятельности тюрем, перевоспитании и социальной адаптации заключенных. Изучены радикальные изменения, произошедшие в тюремной системе вследствие Февральской революции 1917 г.The article describes the basic laws of the penitentiary system’s formation in the Olonets province. The author identifies main problems that existed in the operation of prisons in the province as well as the ways of interaction of various departments in re-education and social adaptation of prisoners. The changes occurred in the prison system as results of the February Revolution of 1917 were studied.
A concentrated, nonlinear information-theoretic estimator for the sample selection model
Creators: name: Golan, Amos
name: Gzyl, Henryk
Publisher: name: American University
Year: 2023

description: This paper develops a semi-parametric, Information-Theoretic method for estimating parameters for nonlinear data generated under a sample selection process. Considering the sample selection as a set of inequalities makes this model inherently nonlinear. This estimator (i) allows for a whole class of different priors, and (ii) is constructed as an unconstrained, concentrated model. This estimator is easy to apply and works well with small or complex data. We provide a number of explicit analytical examples for different priors’ structures and an empirical example.
Microscopic model for the magnetization plateaus in NH4CuCl3
Creators: name: Matsumoto, Masashige
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A simple model consisting of three distinct dimer sublattices is proposed to describe the magnetism of NH4CuCl3. It explains the occurrence of magnetization plateaus only at 1/4 and 3/4 of the saturation magnetization. The field dependence of the excitation modes observed by ESR measurements is also explained by the model. The model predicts that the magnetization plateaus should disappear under high pressure.
description: 4 pages, 5 figures, REVTeX4
Chemical modelling of FU Ori protoplanetary disks
Creators: name: Molyarova, Tamara
name: Akimkin, Vitaly
name: Semenov, Dmitry
name: Ábrahám, Péter
name: Henning, Thomas
name: Kóspál, Ágnes
name: Vorobyov, Eduard
name: Wiebe, Dmitri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences
subject: 85-02

description: Luminosity outbursts of the FUOri type stars, which have a magnitude of $\sim100 L_{\odot}$ and last for decades, may affect chemical composition of the surrounding protoplanetary disk. Using astrochemical modeling we analyze the changes induced by the outburst and search for species sensitive to the luminosity rise. Some changes in the disk molecular composition appear not only during the outburst itself but can also retain for decades after the end of the outburst. We analyze main chemical processes responsible for these effects and assess timescales at which chemically inert species return to the pre-outburst abundances.
description: 2 pages, 2 figures
Sentiment analysis for the detection of depressive users on social networks
Creators: name: Wigell, Chris
Publisher: name: University of Southern Queensland
Year: 2024
Subjects: Depression
Artificial Intelligence
Social Media
Screening

description: Depression affects approximately 121 million people worldwide and has as significant an influence on patients as it does their carers. Until recently, psychologists used paper based psychological batteries for screening. New developments in Natural Language Processing however have enabled real-time analysis, offering increases in scalability and accessibility. We built on current knowledge by developing several Centralised Neural Network models around a pre-labelled Reddit dataset, first comparing performance. Our best model then parsed a Reddit forum (r/Depression) labelling depressed/control posts, evaluating them for changes over time whilst using a Term Frequency-Inverse Document Frequency (TF-IDF) tool to screen them for a weighted keyword list. We found neither word count nor the number of posts significantly affected our model’s performance, 67% of initial forum posts had depressed labels and as time progressed there was a decrease in depressed labels (per post) which was significant between users. Our TF-IDF tool also demonstrated a new way of looking at keywords, presenting us with a list most relevant to each category, whilst we additionally developed a free research tool for release into the public. Our study was able to yield support for its use within online forums at a very low cost; justifying further exploration into the use of AI tools for the screening of depression and other mood disorders.
Superfield Description of a Self-Dual Supergravity a la MacDowell-Mansouri
Creators: name: Nieto, J. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using MacDowell-Mansouri theory, in this work, we investigate a superfield description of the self-dual supergravity a la Ashtekar. We find that in order to reproduce previous results on supersymmetric Ashtekar formalism, it is necessary to properly combine the supersymmetric field-strength in the Lagrangian. We extend our procedure to the case of supersymmetric Ashtekar formalism in eight dimensions.
description: 19 pages, Latex; section 6 improved
Tilted Bianchi Type V Bulk Viscous Cosmological Models in General Relativity
Creators: name: Pradhan, Anirudh
name: Rai, Abha
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Conformally flat tilted Bianchi type V cosmological models in presence of a bulk viscous fluid and heat flow are investigated. The coefficient of bulk viscosity is assumed to be a power function of mass density. Some physical and geometric aspects of the models are also discussed.
description: 14 pages
The ACS Virgo Cluster Survey IX: The Color Distributions of Globular Cluster Systems in Early-Type Galaxies
Creators: name: Peng, Eric W.
name: Jordan, Andres
name: Cote, Patrick
name: Blakeslee, John P.
name: Ferrarese, Laura
name: Mei, Simona
name: West, Michael J.
name: Merritt, David
name: Milosavljevic, Milos
name: Tonry, John L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the color distributions of globular cluster (GC) systems for 100 Virgo cluster early-type galaxies observed in the ACS Virgo Cluster Survey. The color distributions of individual GC systems are consistent with continuous trends across galaxy luminosity, color, and stellar mass. On average, almost all galaxies possess a component of metal-poor GCs, with the average fraction of metal-rich GCs ranging from 15 to 60%. The colors of both subpopulations correlate with host galaxy luminosity and color, with the red GCs having a steeper slope. To convert color to metallicity, we also introduce a preliminary (g-z)-[Fe/H] relation calibrated to Galactic, M49 and M87 GCs. This relation is nonlinear with a steeper slope for [Fe/H] < -0.8. As a result, the metallicities of the metal-poor and metal-rich GCs vary similarly with respect to galaxy luminosity and stellar mass, with relations of [Fe/H]_MP ~ L^0.16 ~ M_star^0.17 and [Fe/H]_MR ~ L^0.26 ~ M_star^0.22, respectively. Although these relations are shallower than the mass-metallicity relation predicted by wind models and observed for dwarf galaxies, they are very similar to the mass-metallicity relation for star forming galaxies in the same mass range. The offset between the two GC populations varies slowly (~ M_star^0.05) and is approximately 1 dex across three orders of magnitude in mass, suggesting a nearly universal amount of enrichment between the formation of the two populations of GCs. We also find that although the metal-rich GCs show a larger dispersion in color, it is the *metal-poor GCs* that have an equal or larger dispersion in metallicity. Like the color-magnitude relation, these relations derived from globular clusters present stringent constraints on the formation and evolution of early-type galaxies. (Abridged)
description: 25 pages, 16 figures, 7 tables. Accepted for publication in the Astrophysical Journal. Version with Figures 1,5-9,11-16 in color is available at http://www.physics.rutgers.edu/~pcote/acs/acsvcs_9.pdf
Variable Speed of Light Cosmology and Bimetric Gravity: An Alternative to Standard Inflation
Creators: name: Moffat, J. W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A scalar-tensor bimetric gravity model of early universe cosmology is reviewed. The metric frame with a variable speed of light (VSL) and a constant speed of gravitational waves is used to describe a Friedmann-Robertson-Walker universe. The Friedmann equations are solved for a radiation dominated equation of state and the power spectrum is predicted to be scale invariant with a scalar mode spectral index $n_s=0.97$. The scalar modes are born in a ground state superhorizon and the fluctuation modes are causally connected by the VSL mechanism. The cosmological constant is equated to zero and there is no significant dependence on the scalar field potential energy. A possible way of distinguishing the metric gravity model from standard inflationary models is discussed.
description: 10 pages. Latex file. No figures. Talk given at the Coral Gables Conference on High Energy Physics and Cosmology, Fort Lauderdale, Florida, December 17-21, 2003. Typos corrected. Reference added
Additional file 1 of Norovirus infections and knowledge, attitudes and practices in food safety among food handlers in an informal urban settlement, Kenya 2017
Creators: name: Wainaina, Eliud
name: Otieno, Christina A.
name: Kamau, Joseph
name: Atunga Nyachieo
name: Lowther, Sara A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1. Questionnaire tool.
Biting into Sustainability: The 2002 UBC Food System Collarborative Project Report
Creators: name: Brunetti, Anthony
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
The cosmological evolution of quasar black-hole masses
Creators: name: McLure, R. J.
name: Dunlop, J. S.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Virial black-hole mass estimates are presented for 12698 quasars in the redshift interval 0.1
description: 15 pages, 10 figures, revised version, accepted for publication by MNRAS
On Multiwavelength Emission of Large-Scale Quasar Jets
Creators: name: Stawarz, L.
name: Sikora, M.
name: Ostrowski, M.
name: Begelman, M. C.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss morphological properties of the large-scale jets in powerful radio sources, which are now observed at radio, optical and X-ray frequencies, in order to determine the origin of their X-ray radiation and the nature of the particle acceleration responsible for their multiwavelength emission. We show that modeling knots of the these objects as stationary regions of energy dissipation within the uniform and continuous jet flow leads to several problems. Such problems are especially pronounced if the observed X-ray emission is due to inverse-Compton scattering of the CMB radiation. We explore another possibility, namely that the knots represent moving and separate portions of the jet matter, with excess kinetic power. We suggest a possible connection between this scenario and the idea of intermittent/highly modulated jet activity. The proposed model can explain some morphological properties of quasar jets -- like high knot-to-interknot brightness contrasts, frequency-independent knot profiles and almost universal extents of the knot regions -- independently of the exact emission mechanism responsible for producing the X-rays. In this context, we consider different possibilities for the production of such X-ray radiation, and discuss the related issue of particle acceleration. We conclude that the appropriate process cannot be designated for certain yet. We suggest, however, that X-ray observations of the jet in 3C 120 (in which intermittent jet activity is quite distinct) already seem to support the synchrotron origin of the X-ray emission, at least in this object.
description: 32 pages, 4 figures included. Accepted for publication in The Astrophysical Journal (corrected equation 6)
Non-covariance of the dressed-metric approach in loop quantum cosmology
Creators: name: Bojowald, Martin
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dressed-metric approach is shown to violate general covariance by demonstrating that it cannot have an off-shell completion in which the correct infinitesimal relations of space-time hypersurface deformations are realized. The main underlying reason -- a separation of background degrees of freedom and modes of inhomogeneity that is incompatible with covariance -- is shared with other approaches such as hybrid loop quantum cosmology.
description: 19 pages, 1 figure
A concentrated, nonlinear information-theoretic estimator for the sample selection model
Creators: name: Golan, Amos
name: Gzyl, Henryk
Publisher: name: Entropy
Year: 2023
Subjects: classificationCode: 46
subject: Information and computing sciences

description: This paper develops a semi-parametric, Information-Theoretic method for estimating parameters for nonlinear data generated under a sample selection process. Considering the sample selection as a set of inequalities makes this model inherently nonlinear. This estimator (i) allows for a whole class of different priors, and (ii) is constructed as an unconstrained, concentrated model. This estimator is easy to apply and works well with small or complex data. We provide a number of explicit analytical examples for different priors’ structures and an empirical example.
COREQ_Garimpo.pdf
Creators: name: Murta, Felipe
Publisher: name: figshare
Year: 2021
Subjects: subject: Diseases
subject: 111712 Health Promotion
subject: FOS: Health sciences

description: COREQ checklist for the article entitled Perceptions about malaria among Brazilian gold miners in an Amazonian border area: perspectives for malaria elimination strategies
title: François Hollande , "Intervention du président de la République aux 25 ans de l'ANRS sur le SIDA et les hépatites virales, 26 novembre 2013"
Creators: name: Hollande, François (1954-....)
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020

description: Source: http://www.calames.abes.fr/pub/ms/Calames-20193111135696620
description: created: start=1975;end=2018
title: НОВЫЙ ТИП ГЕРОЯ В ПОВЕСТЯХ АНАТОЛИЯ АНДРЕЕВА
Creators: name: Пасютина Юлия Николаевна
Publisher: name: Studia Humanitatis
Year: 2019
Subjects: герой
лишний
личность
свобода
истина
ум.

description: В статье анализируются повести русскоязычного писателя Беларуси А. Андреева, который предложил теорию персоноцентризма, основанную на осознании литературного героя как личности. Персонажи белорусского писателя представляют собой новую, современную разновидность «лишнего» героя. Это – люди творческих профессий, наделенные большими, чем все остальные, умственными способностями, и в этом заключается их проблема. Они мечутся в поисках себя и своего предназначения, но сталкиваются с неодобрением общества и в итоге остаются в полном одиночестве.
Properties of a Dilute Bose Gas near a Feshbach Resonance
Creators: name: Yin, Lan
name: Ning, Zhen-Hua
Publisher: name: arXiv
Year: 2003
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In this paper, properties of a homogeneous Bose gas with a Feshbach resonance are studied in the dilute region at zero temperature. The stationary state contains condensations of atoms and molecules. The ratio of the molecule density to the atom density is $πna^3$. There are two types of excitations, molecular excitations and atomic excitations. Atomic excitations are gapless, consistent with the traditional theory of a dilute Bose gas. The molecular excitation energy is finite in the long wavelength limit as observed in recent experiments on $^{85}$Rb. In addition, the decay process of the condensate is studied. The coefficient of the three-body recombination rate is about 140 times larger than that of a Bose gas without a Feshbach resonance, in reasonably good agreement with the experiment on $^{23}$Na.
description: 11 pages, 1 figure, comparison between the calculated three-body recombination rate and the experimental data for Na system has been added
Dichotomy of radio loud and radio quiet quasars in four dimensional eigenvector one (4DE1) parameter space
Creators: name: Terefe, Shimeles
name: Orozco, Ascensión Del Olmo
name: Marziani, Paola
name: Pović, Mirjana
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Recent work has shown that it is possible to systematize quasars (QSOs) spectral diversity in 4DE1 parameter space. The spectra contained in most of the surveys have low signal to noise ratio which fed the impression that all QSOś are spectroscopically similar. Exploration of 4DE1 parameter space gave rise to the concept of two populations of QSOs that present important spectroscopic differences. We aim to quantify broad emission line differences between radio quiet and radio loud sources by exploiting more complete samples of QSO with spectral coverage in Hbeta, MgII and CIV emission lines. We used a high redshift sample (0.35 < z < 1) of strong radio emitter QSOs observations from Calar Alto Observatory in Spain.
description: Proceedings paper of the IAU symposium "Nuclear Activity in Galaxies Across Cosmic Time" (Ethiopia) accepted for publishing under the Cambridge University Press, eds. M. Povic, P. Marziani, J. Masegosa, H. Netzer, S. H. Negu, and S. B. Tessema
Weed Density Around MacMillian Building
Creators: name: Nugent, Michael R
name: Spring, Jonas W
name: Treloar, Jonathan M
Publisher: name: The University of British Columbia
Year: 2010

description: Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”
Axial and off-axial dynamic transitions in uniaxially anisotropic Heisenberg ferromagnet: A comparison
Creators: name: Acharyya, Muktish
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Uniaxially anisotropic Heisenberg ferromagnet, in the presence of a magnetic fieldvarying sinusoidally in time, is studied by Monte Carlo Simulation. The axial (field applied only along the direction of anisotropy) and off-axial (field applied only along the direction which is prependicular to the direction of anisotropy) dynamic transitions are studied. By studying the distribution of the dynamic order parameter component, it is observed that the axial transition is discontinuous for low anisotropy and becomes continuous in high anisotropy. The off-axial transition is found to be continuous for all values of anisotropy. In the infinite anisotropy limit, both types of transitions are compared with athat observed in an Ising ferromagnet for the same value of the field and frequency. The infinitely anisotropic axial transition and dynamic transition in the Ising ferromagnet occur at different temperatures, whereas the infinitely anisotropic off-axial transition and the equilibrium ferro-para transition in the Ising model occur at the same temperature.
description: 11 pages Latex including figures
The distribution of integers with a divisor in a given interval
Creators: name: Ford, Kevin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N25 (Primary) 62G30 (Secondary)

description: We determine the order of magnitude of H(x,y,z), the number of integers n\le x having a divisor in (y,z], for all x,y and z. We also study H_r(x,y,z), the number of integers n\le x having exactly r divisors in (y,z]. When r=1 we establish the order of magnitude of H_1(x,y,z) for all x,y,z satisfying z\le x^{0.49}. For every r\ge 2, $C>1$ and $ε>0$, we determine the the order of magnitude of H_r(x,y,z) when y is large and y+y/(\log y)^{\log 4 -1 - ε} \le z \le \min(y^{C},x^{1/2-ε}). As a consequence of these bounds, we settle a 1960 conjecture of Erdos and several related conjectures. One key element of the proofs is a new result on the distribution of uniform order statistics.
description: Final version. Greatly simplified proof of Lemma 4.7 in Sec. 10, references updated, other minor corrections
Drug Sensitivity Prediction From Cell Line-Based Pharmacogenomics Data: Guidelines for Developing Machine Learning Models
Creators: name: Noghabi, Hossein Sharifi
name: Jahangiri-Tazehkand, Soheil
name: Hon, Casey
name: Smirnov, Petr
name: Mammoliti, Anthony
name: Nair, Sisira Kadambat
name: Mer, Arvind
name: Ester, Martin
name: Haibe-Kains, Benjamin
Publisher: name: Zenodo
Year: 2021

description: Datasets and models objects for Guidelines for Developing Machine Learning Models for Drug Sensitivity Prediction From Cell Line-Based Pharmacogenomics Data
An entropic estimator for linear inverse problems
Creators: name: Golan, Amos
name: Gyzl, Henryk
Publisher: name: American University
Year: 2023

description: In this paper we examine an Information-Theoretic method for solving noisy linear inverse estimation problems which encompasses under a single framework a whole class of estimation methods. Under this framework, the prior information about the unknown parameters (when such information exists), and constraints on the parameters can be incorporated in the statement of the problem. The method builds on the basics of the maximum entropy principle and consists of transforming the original problem into an estimation of a probability density on an appropriate space naturally associated with the statement of the problem. This estimation method is generic in the sense that it provides a framework for analyzing non-normal models, it is easy to implement and is suitable for all types of inverse problems such as small and or ill-conditioned, noisy data. First order approximation, large sample properties and convergence in distribution are developed as well. Analytical examples, statistics for model comparisons and evaluations, that are inherent to this method, are discussed and complemented with explicit examples.
An entropic estimator for linear inverse problems
Creators: name: Golan, Amos
name: Gyzl, Henryk
Publisher: name: Entropy
Year: 2023
Subjects: classificationCode: 46
subject: Information and computing sciences

description: In this paper we examine an Information-Theoretic method for solving noisy linear inverse estimation problems which encompasses under a single framework a whole class of estimation methods. Under this framework, the prior information about the unknown parameters (when such information exists), and constraints on the parameters can be incorporated in the statement of the problem. The method builds on the basics of the maximum entropy principle and consists of transforming the original problem into an estimation of a probability density on an appropriate space naturally associated with the statement of the problem. This estimation method is generic in the sense that it provides a framework for analyzing non-normal models, it is easy to implement and is suitable for all types of inverse problems such as small and or ill-conditioned, noisy data. First order approximation, large sample properties and convergence in distribution are developed as well. Analytical examples, statistics for model comparisons and evaluations, that are inherent to this method, are discussed and complemented with explicit examples.
Mirror symmetry for weighted projective planes and their noncommutative deformations
Creators: name: Auroux, Denis
name: Katzarkov, Ludmil
name: Orlov, Dmitri
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: We study the derived categories of coherent sheaves of weighted projective spaces and their noncommutative deformations, and the derived categories of Lagrangian vanishing cycles of their mirror Landau-Ginzburg models. In particular, we show that the derived category of coherent sheaves (B-branes) on the weighted projective plane $\CP^2(a,b,c)$ is equivalent to the derived category of vanishing cycles (A-branes) on the affine hypersurface $X=\{x^ay^bz^c=1\}\subset (\C^*)^3$ equipped with an exact symplectic form and the superpotential $W=x+y+z$. Hence, the homological mirror symmetry conjecture holds for weighted projective planes. Moreover, we also show that this mirror correspondence between derived categories can be extended to toric noncommutative deformations of $\CP^2(a,b,c)$ where B-branes are concerned, and their mirror counterparts, non-exact deformations of the symplectic structure of $X$ where A-branes are concerned. We also obtain similar results for other examples such as weighted projective lines or Hirzebruch surfaces.
description: 55 pages, 15 figures
dtControl: Decision Tree Learning Algorithms for Controller Representation
Creators: name: Ashok, Pranav
name: Jackermeier, Mathias
name: Jagtap, Pushpak
name: Křetínský, Jan
name: Weininger, Maximilian
name: Zamani, Majid
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Systems and Control (eess.SY)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Decision tree learning is a popular classification technique most commonly used in machine learning applications. Recent work has shown that decision trees can be used to represent provably-correct controllers concisely. Compared to representations using lookup tables or binary decision diagrams, decision trees are smaller and more explainable. We present dtControl, an easily extensible tool for representing memoryless controllers as decision trees. We give a comprehensive evaluation of various decision tree learning algorithms applied to 10 case studies arising out of correct-by-construction controller synthesis. These algorithms include two new techniques, one for using arbitrary linear binary classifiers in the decision tree learning, and one novel approach for determinizing controllers during the decision tree construction. In particular the latter turns out to be extremely efficient, yielding decision trees with a single-digit number of decision nodes on 5 of the case studies.
Male Sexual Preference for Female Swimming Activity in the Guppy (Poecilia reticulata)
Creators: name: Bierbach, David
name: Wenchel, Ronja
name: Gehrig, Stefan
name: Wersing, Serafina
name: O’Connor, Olivia L.
name: Krause, Jens
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: animal personality
subject: swimming activity
subject: male mate choice
subject: mating preferences
subject: Poecilia reticulata
subject: 570 Biowissenschaften; Biologie

description: Mate choice that is based on behavioural traits is a common feature in the animal kingdom. Using the Trinidadian guppy, a species with mutual mate choice, we investigated whether males use female swimming activity—a behavioural trait known to differ consistently among individuals in many species—as a trait relevant for their mate choice. In the first experiment, we assessed male and female activity in an open field test alone (two repeated measures) and afterwards in heterosexual pairs (two repeated measures). In these pairs, we simultaneously assessed males’ mating efforts by counting the number of sexual behaviours (courtship displays and copulations). Male and female guppies showed consistent individual differences in their swimming activity when tested both alone and in a pair, and these differences were maintained across both test situations. When controlling for male swimming behaviour and both male and female body size, males performed more courtship displays towards females with higher swimming activity. In a second experiment, we tested for a directional male preference for swimming activity by presenting males video animations of low- and high-active females in a dichotomous choice test. In congruence with experiment 1, we found males to spend significantly more time in association with the high-active female stimulus. Both experiments thus point towards a directional male preference for higher activity levels in females. We discuss the adaptive significance of this preference as activity patterns might indicate individual female quality, health or reproductive state while, mechanistically, females that are more active might be more detectable to males as well.
Additional file 1 of Transfer of motor skill between virtual reality viewed using a head-mounted display and conventional screen environments
Creators: name: Juliano, Julia M.
name: Sook-Lei Liew
Publisher: name: figshare
Year: 2020
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1: Table S1. Differences in simulator sickness level between Train-HMD-VR and Train-Screen. Table S2. Differences in themes of presence (top) and other self-reported measures (bottom) between Train-HMD-VR and Train-Screen. Table S3. Train-HMD-VR results from univariate analysis of predicting HMD-VR motor skill transfer to a computer screen. Table S4. Train-Screen results from univariate analysis of predicting computer screen motor skill transfer to HMD-VR.
Estimating a demand system with nonnegativity constraints : Mexican mean demand
Creators: name: Golan, Amos
name: Perloff, Jeffrey M.
name: Shen, Edward Z.
Publisher: name: American University
Year: 2023

description: A new information-based approach for estimating systems of many equations with nonnegativity constraints is presented. This approach, called generalized maximum entropy (GME), is more practical and efficient than traditional maximum-likelihood methods. The GME method is used to estimate an almost ideal demand system for five types of meat using cross-sectional data from Mexico, where most households did not buy at least one type of meat during the survey week. The system of demands is shown to vary across demographic groups.
Chemical enrichment of the intra-cluster and intergalactic medium in a hierarchical galaxy formation model
Creators: name: De Lucia, Gabriella
name: Kauffmann, Guinevere
name: White, Simon D. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We use a combination of high resolution N-body simulations and semi-analytic techniques to follow the formation, the evolution and the chemical enrichment of cluster galaxies in a Lambda-CDM Universe. We model the transport of metals between the stars, the cold gas in galaxies, the hot gas in dark matter haloes, and the intergalactic gas outside virialized haloes. We have compared three different feedback schemes. The `retention' model assumes that material reheated by supernova explosions is able to leave the galaxy, but not the dark matter halo. The `ejection' model assumes that this material leaves the halo and is then re-incorporated when structure collapses on larger scales. The `wind' model uses prescriptions that are motivated by observations of local starburst galaxies. We require that our models reproduce the cluster LF from the 2dF survey, the relations between stellar mass, gas mass and metallicity inferred from new SDSS data, and the observed amount of metals in the ICM. With suitable adjustment of the free parameters in the model, a reasonable fit to the observational results at redshift zero can be obtained for all three feedback schemes. All three predict that the chemical enrichment of the ICM occurs at high redshift with 60-80 per cent of the metals currently in the ICM ejected at redshifts larger than 1. Massive galaxies are important contributors to the chemical pollution. The observed decline in baryon fraction from rich clusters to galaxy groups is reproduced only in an `extreme' ejection scheme, where material ejected from dark matter haloes is re-incorporated on a timescale comparable to the age of the Universe. We explore how the metal abundance in the intergalactic medium as a function of redshift can constraint how and when galaxies ejected their metals.
description: Accepted for publication in MNRAS. 17 pages, 13 figures. Minor changes to submitted version
Estimating a demand system with nonnegativity constraints : Mexican mean demand
Creators: name: Golan, Amos
name: Perloff, Jeffrey M.
name: Shen, Edward Z.
Publisher: name: The Review of Economics and Statistics
Year: 2023
Subjects: classificationCode: 38
subject: Economics
classificationCode: 4905
subject: Statistics
subject: FOS: Mathematics

description: A new information-based approach for estimating systems of many equations with nonnegativity constraints is presented. This approach, called generalized maximum entropy (GME), is more practical and efficient than traditional maximum-likelihood methods. The GME method is used to estimate an almost ideal demand system for five types of meat using cross-sectional data from Mexico, where most households did not buy at least one type of meat during the survey week. The system of demands is shown to vary across demographic groups.
Estimating promotion probabilities of navy officers based on individual's attributes and other global effects
Creators: name: Golan, Amos
name: Blackstone, Tanja F.
Publisher: name: Navy Personnel Research, Studies, and Technology
Year: 2023
Subjects: classificationCode: 46
subject: Information and computing sciences

description: The basic objective of the CCMT Officers project is to develop an econometric model that captures the promotion trajectory for the individual officers, conditional on past behavior and performance as well as on past (and current) economic and policy conditions. The model is also conditional on staying in the Navy the minimal time for promotion. The estimated results are also used as a forecasting tool for the policy maker. The econometric framework used here is a two-step first order Markov model that accommodate for time dependent information, for the cohort information, for censoring problems with the data as well as incorporates macro economic and policy level information. In the first step the conditional probabilities of staying or leaving the Navy are estimated. Conditional on staying in the Navy enough time to be eligible for promotion, in the second step of the estimation, the promotion probability within the next year (conditional on all the independent variables) is estimated. The estimation model is an Information-Theoretic, Generalized Maximum Entropy model that is non-parametric in the distribution.
Supplementary material on diets in Bangladesh
Creators: name: Ali, Zakari
Publisher: name: Zenodo
Year: 2021
Subjects: subject: Diet
subject: https://www.google.com/search?q=nutrition&rlz=1C1CHBD_enGM891GM891&oq=nutrition+&aqs=chrome..69i57j35i39l2j0l2j69i60j69i61j69i60.4134j0j4&sourceid=chrome&ie=UTF-8

description: Supplementary material with further details on methods and results.
Estimating promotion probabilities of navy officers based on individual's attributes and other global effects
Creators: name: Golan, Amos
name: Blackstone, Tanja F.
Publisher: name: American University
Year: 2023

description: The basic objective of the CCMT Officers project is to develop an econometric model that captures the promotion trajectory for the individual officers, conditional on past behavior and performance as well as on past (and current) economic and policy conditions. The model is also conditional on staying in the Navy the minimal time for promotion. The estimated results are also used as a forecasting tool for the policy maker. The econometric framework used here is a two-step first order Markov model that accommodate for time dependent information, for the cohort information, for censoring problems with the data as well as incorporates macro economic and policy level information. In the first step the conditional probabilities of staying or leaving the Navy are estimated. Conditional on staying in the Navy enough time to be eligible for promotion, in the second step of the estimation, the promotion probability within the next year (conditional on all the independent variables) is estimated. The estimation model is an Information-Theoretic, Generalized Maximum Entropy model that is non-parametric in the distribution.
Information and entropy econometrics : A review and synthesis
Creators: name: Golan, Amos
Publisher: name: American University
Year: 2023

description: The overall objectives of this review and synthesis are to study the basics of information-theoretic methods in econometrics, to examine the connecting theme among these methods, and to provide a more detailed summary and synthesis of the sub-class of methods that treat the observed sample moments as stochastic. Within the above objectives, this review focuses on studying the inter-connection between information theory, estimation, and inference. To achieve these objectives, it provides a detailed survey of information-theoretic concepts and quantities used within econometrics. It also illustrates the use of these concepts and quantities within the subfield of information and entropy econometrics while paying special attention to the interpretation of these quantities. The relationships between information-theoretic estimators and traditional estimators are discussed throughout the survey. This synthesis shows that in many cases information-theoretic concepts can be incorporated within the traditional likelihood approach and provide additional insights into the data processing and the resulting inference.
Order-disorder phase transition in black-hole star clusters -- III. A mono-energetic cluster
Creators: name: Tremaine, Scott
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Supermassive black holes at the centres of galaxies are often surrounded by dense star clusters. For a wide range of cluster properties and orbital radii the resonant relaxation times in these clusters are much shorter than the Hubble time. Since resonant relaxation conserves semimajor axes, these clusters should be in the maximum-entropy state consistent with the given semimajor axis distribution. We determine these maximum-entropy equilibria in a simplified model in which all of the stars have the same semimajor axes. We find that the cluster exhibits a phase transition from a disordered, spherical, high-temperature equilibrium to an ordered low-temperature equilibrium in which the stellar orbits have a preferred orientation or line of apsides. Here `temperature' is a measure of the non-Keplerian or self-gravitational energy of the cluster; in the spherical state, temperature is a function of the rms eccentricity of the stars. We explore a simple two-parameter model of black-hole star clusters -- the two parameters are semimajor axis and black-hole mass --- and find that clusters are susceptible to the lopsided phase transition over a range of ~100 in semimajor axis, mostly for black-hole masses less than $10^{7.5}$ solar masses.
description: MNRAS, in press