cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Building Digital Democracy Solutions in Kenya through Data
Creators: name: Govindasamy, Tricia
Publisher: name: Zenodo
Year: 2023
Subjects: data visualisation
kenya
budget

description: In Kenya, it remains difficult for both watchdogs and citizens to understand how financial resources are utilised since it decentralised services from national to county-level governments in 2013. Code for Africa built a tool that holds the government accountable by liberating data, called PesaYetu. PesaYetu is an interactive website designed to easily identify and track promises made by county government officials and visualise budget data. With PesaYetu, you can explore, interpret and report on data-driven stories affecting local communities. The tool is aimed at storytellers to help empower citizens wanting to engage their leaders on issues concerning policy and governance at the county level.
Is the 2MASS dipole convergent?
Creators: name: Chodorowski, Michał
name: Bilicki, Maciej
name: Mamon, Gary A.
name: Jarrett, Thomas
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study the growth of the clustering dipole of galaxies from the Two Micron All Sky Survey (2MASS). We find that the dipole does not converge before the completeness limit of the 2MASS Extended Source Catalog, i.e. up to about 300 Mpc/h. We compare the observed growth of the dipole with the theoretically expected, conditional growth for the LambdaCDM power spectrum and cosmological parameters constrained by WMAP. The observed growth turns out to be within 1-sigma confidence level of the theoretical one, once the proper observational window of the 2MASS flux dipole is included. For a contrast, if the adopted window is a top hat, then the predicted dipole grows significantly faster and converges to its final value at a distance of about 200 Mpc/h. We study the difference between the top-hat window and the window for the flux-limited 2MASS survey and we conclude that the growth of the 2MASS dipole at effective distances greater than 200 Mpc/h is only apparent. Eventually, since for the window function of 2MASS the predicted growth is consistent with the observed one, we can compare the two to evaluate beta = (Omega_m)^0.55 / b. The result is beta = 0.38+-0.05, which gives a rough estimate of Omega_m = 0.2+-0.1.
description: Proceedings of the conference "45th Rencontres de Moriond", La Thuile, Val d'Aosta, Italy, March 13 - 20, 2010, Cosmology Session
Review of sound card photogates
Creators: name: Gingl, Zoltán
name: Mingesz, Róbert
name: Makra, Péter
name: Mellár, János
Publisher: name: arXiv
Year: 2011
Subjects: subject: Popular Physics (physics.pop-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Photogates are probably the most commonly used electronic instruments to aid experiments in the field of mechanics. Although they are offered by many manufacturers, they can be too expensive to be widely used in all classrooms, in multiple experiments or even at a home experimentation. Today all computers have a sound card - an interface for analogue signals. It is possible to make very simple yet highly accurate photogates for cents, while much more sophisticated solutions are also available at a still very low cost. In our review we show several experimentally tested ways of implementing sound card photogates in detail, and we also provide a full-featured, free, open-source photogate software as a much more efficient experimentation tool than the usually used sound recording programs. Further information is provided in a dedicated page, www.noise.physx.u-szeged.hu/edudev.
Imaging spectroscopy data in QGIS: Challenges and Opportunities
Creators: name: Jakimow, Benjamin
name: Janz, Andreas
name: Thiel, Fabian
name: van der Linden, Sebastian
name: Hostert, Patrick
Publisher: name: Zenodo
Year: 2023
Subjects: Remote Sensing
EnMAP
PRISMA
STAC
CHIME
SBG
Spectral Libraries
hyperspectral

description: Satellite missions like EnMAP (Chabrillat, 2022) and PRISMA (Cogliati et al., 2021) observe the Earth surface with hyperspectral resolution. The provided imaging spectroscopy data is highly valuable for biophysical, agricultural, geological hydrological applications. This presentation gives an overview on the typical characteristics of such imaging spectroscopy raster data, where to get it for free, and what makes it different to data from satellites like Landsat and Sentinel-2. We show typical problems that QGIS users and developers are confronted with when using imaging spectroscopy data, and how these problems can be solved exemplary using the EnMAP-Box plugin for QGIS. Finally, we discuss conceptional ideas how QGIS in general may be enhanced to better exploit the spectral in multi-, super- and hyperspectral raster data. This presentation provides the conceptional background for the presentation by Andreas Janz (Introducing Spectral Properties for Earth Observation Data for Interactive Visualization in the EnMAP-Box 3 Plugin).
description: This talk was given on 19. April 2023 on the QGIS User Conference 2023 in s'-Hertogenbosch, Netherlands, https://uc2023.qgis.nl/
The makings of an Average Joe : Joseph of Nazareth, gender and the everyday in early Christian discourse
Creators: name: Glessner, Justin M.
Publisher: name: University of British Columbia
Year: 2014

description: This study explores the quotidian making(s) of men in three, early blocks of (narrative) discourse about Joseph of Nazareth—from the Gospel of Luke, the Gospel of Matthew, and the Protevangelium of James (PJ). Although Matthew’s ‘just man’ (δίκαιος, Mt. 1.19), Joseph was also, after all, ‘just a man’—the ‘average Joe’—especially when compared with other ‘superior’, if also perhaps more volatile, exemplars of early Christian masculine comportment, such as, say, the hero martyr, the ‘manly eunuch’, or the male woman. Without denying the importance of analysis and critique of gender/ing in such highly visible, spectacular performances, I offer here an aligned study revealing deep instabilities inherent even (or especially) in seemingly ordinary or ‘everyday’ citations of ‘normative’ masculine subjectivities in ancient religious narratives. I read not merely for gender in ‘the everyday’ but for the gendering of the everyday; in other words, how was ‘everydayness’ shaped into gendered experience and how was this related to early Christian group identity formation? More specifically, I explore here the proposal that the (re)fashioning of the earliest stories and characterizations of Joseph represent various literary attempts at crafting what the ‘everyday man’ —the ‘average Joe’—should be: paradigmatic, though also unstable and at times competing, models of/for quotidian, normative, ‘everyday’ masculine subjectivity.
Modeling the accretion-powered emission from polar caps of X-ray pulsars: polarization and pulse profiles
Creators: name: Sokolova-Lapa, Ekaterina
name: Gornostaev, Mikhail
name: Falkner, Sebastian
name: Haerer, Lucia
name: Ballhausen, Ralf
name: Thalhammer, Philipp
name: Postnov, Konstantin
name: Pottschmidt, Katja
name: Wilms, Joern
Publisher: name: Zenodo
Year: 2021

description: The mass-accretion at low rates onto a magnetized neutron star results in the rapid plasma deceleration by Coulomb collisions in its atmosphere at the magnetic poles. We model the X-ray emission from the polar caps by simulating the polarized radiative transfer in the highly magnetized plasma of the neutron star atmosphere. We then calculate the relativistic projection of the emission regions onto the sky of the remote observer at different phases of the rotation of the neutron star. It allows for the consistent simulation of the radiation spectrum emergent at different angles, the polarization signal, and pulse profiles. The results are in agreement with the recent NuSTAR observations of Be X-ray binaries in quiescence. We show which assumptions about the geometry of the emission regions and the magnetic field we can make based on these simulations.
Oxygen Recombination in the nebular phase of supernovae 1998bw and 2002ap
Creators: name: Maurer, Immanuel
name: Mazzali, Paolo
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Late-time spectra of stripped-envelope CC-SNe are dominated by strong [O {\sc i}] $λλ$6300,6363 emission, caused by thermal electron excitation of forbidden [O {\sc i}] transitions. The permitted O {\sc i} 7774 Å line is also often observed. This line cannot result from thermal electron excitation of the oxygen ground state. In this work tests are performed to verify whether the line can be powered by oxygen recombination alone, using the examples of two of the best studied type Ic SNe, 1998bw and 2002ap. Temperature-dependent effective recombination coefficients for neutral oxygen are calculated using available atomic data. Missing atomic data are computed in a temperature range typical for SN nebulae. Core ejecta models for SNe 1998bw and 2002ap are obtained from modelling their nebular emission spectra so that oxygen recombination line formation is computed consistently with oxygen forbidden line emission. While SN 2002ap can be explained well by a one dimensional shell model, this seems not to be possible for SN 1998bw, for which a two dimensional model is found. At very late epochs the formation of the O {\sc i} 7774 Å line can be explained by recombination radiation for both SNe, but at earlier epochs strong absorption is present which may determine the strength of this line even at $\sim$ 200 days.
A Comparative Study on Language Models for Task-Oriented Dialogue Systems
Creators: name: Andreas, Vinsen Marselino
name: Winata, Genta Indra
name: Purwarianti, Ayu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences
subject: I.2.7

description: The recent development of language models has shown promising results by achieving state-of-the-art performance on various natural language tasks by fine-tuning pretrained models. In task-oriented dialogue (ToD) systems, language models can be used for end-to-end training without relying on dialogue state tracking to track the dialogue history but allowing the language models to generate responses according to the context given as input. This paper conducts a comparative study to show the effectiveness and strength of using recent pretrained models for fine-tuning, such as BART and T5, on endto-end ToD systems. The experimental results show substantial performance improvements after language model fine-tuning. The models produce more fluent responses after adding knowledge to the context that guides the model to avoid hallucination and generate accurate entities in the generated responses. Furthermore, we found that BART and T5 outperform GPT-based models in BLEU and F1 scores and achieve state-of-the-art performance in a ToD system.
description: 5 pages, 1 figure
The generalized second law in chameleon cosmology
Creators: name: Farajollahi, H.
name: Salehi, A.
name: Tayebi, F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we investigate the validity of the generalized second law (GSL) of thermodynamics in flat FRW chameleon cosmology where the boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. It has been shown that, in a bouncing scenario for the universe with phantom crossing, the total entropy decreases with time in the contracting epoch, whereas, the dynamics of the internal and horizon entropies depends on the behavior of both equation of state and hubble parameters.
description: 10 pages, 6 figures; To be published in Can. J. Phys
Improving the effectiveness, efficiency and sustainability of fertilizer use in Sub-Saharan Africa
Creators: name: Akuriba, Margaret
name: Belemvire, Adam
name: Saa Dittoh
name: Khondoker Haider
name: T. S. Jayne
name: Abayomi Omotesho
Publisher: name: Gates Open Research
Year: 2019

description: Improving the effectiveness, efficiency and sustainability of fertilizer use in Sub-Saharan Africa
Fibrations of financial events
Creators: name: Carfı, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Differential Geometry (math.DG)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 53B05

description: In this paper we shall prove that the plane of financial events, introduced and applied to financial problems by the author himself (see [2], [3] and [4]) can be considered as a fibration in two different ways. The first one, the natural one, reveals itself to be isomorphic to the tangent- bundle of the real line, when the last one is considered as a differentiable manifold in the natural way; the second one is a fibration induced by the status of compound interest capitalization at a given rate i in the interval ] - 1, \rightarrow [. Moreover, in the paper we define on the first fibration an affine connection, also in this case induced by the status of compound interest at a given rate i. The final goal of this paper is the awareness that all the effects determined by the status of compound interest are nothing but the consequences of the fact that the space of financial events is a fibration endowed with a particular affine connection, so they are consequences of purely geometric properties, at last, depending upon the curvature determined by the connection upon the fibration. A natural preorder upon the set of fibers of the second fibration is considered. Some remarks about the applicability to economics and finance of the theories presented in the paper and about the possible developments are made in the directions followed in papers [1], [5], [6], [7], [8] of the author.
Physical Activity Recognition by Utilising Smartphone Sensor Signals
Creators: name: Alruban, Abdulrahman
name: Alobaidi, Hind
name: Li, Nathan Clarke' Fudong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Human physical motion activity identification has many potential applications in various fields, such as medical diagnosis, military sensing, sports analysis, and human-computer security interaction. With the recent advances in smartphones and wearable technologies, it has become common for such devices to have embedded motion sensors that are able to sense even small body movements. This study collected human activity data from 60 participants across two different days for a total of six activities recorded by gyroscope and accelerometer sensors in a modern smartphone. The paper investigates to what extent different activities can be identified by utilising machine learning algorithms using approaches such as majority algorithmic voting. More analyses are also provided that reveal which time and frequency domain based features were best able to identify individuals motion activity types. Overall, the proposed approach achieved a classification accuracy of 98 percent in identifying four different activities: walking, walking upstairs, walking downstairs, and sitting while the subject is calm and doing a typical desk-based activity.
description: 10 pages, 10 figures, conference
With the training to diagnose, test, prescribe and discharge, nurse practitioners could help rescue rural health
Creators: name: Mills, Jane
name: Burgemeister, Fiona
name: Hooker, Leesa
Publisher: name: La Trobe
Year: 2023

description: It can be tough to access front-line health care outside the cities and suburbs. For the seven million Australians living in rural communities there are significant challenges in accessing health care due to serious workforce shortages, geographic isolation and socioeconomic disadvantage. This results in rural people having poorer quality of life, and long-term poor health outcomes.
Towards a Conceptual Framework for Innate Immunity
Creators: name: Twycross, Jamie
name: Aickelin, Uwe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Innate immunity now occupies a central role in immunology. However, artificial immune system models have largely been inspired by adaptive not innate immunity. This paper reviews the biological principles and properties of innate immunity and, adopting a conceptual framework, asks how these can be incorporated into artificial models. The aim is to outline a meta-framework for models of innate immunity.
description: 14 pages, 5 figures, 2 tables, 4th International Conference on Artificial Immune Systems (ICARIS 2005)
Constraints on a $f(R)$ gravity dark energy model with early scaling evolution
Creators: name: Park, Chan-Gyung
name: Hwang, Jai-chan
name: Noh, Hyerim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The modified gravity with $f(R)=R^{1+ε}$ ($ε>0$) allows a scaling solution where the density of gravity sector follows the density of the dominant fluid. We present initial conditions of background and perturbation variables during the scaling evolution regime in the modified gravity. As a possible dark energy model we consider a gravity with a form $f(R)=R^{1+ε}+qR^{-n}$ ($-1
description: 8 pages, 5 figures
Eye region processing : insights from acquired prosopagnosia
Creators: name: Pancaroglu, Raika
Publisher: name: University of British Columbia
Year: 2014

description: Face processing models propose a holistic representation of faces in the human brain. Additionally, behavioral studies in healthy individuals indicate a bias towards the eye region of faces, namely a Feature Salience Hierarchy. The exact mechanisms of this feature salience hierarchy are not known. Using behavioral face perception and neuroimaging experiments, we investigated the perceptual mechanisms and the neural correlates of the feature salience hierarchy, and the correlations of the human perceptual performance with the neural signal. Prosopagnosia studies also indicate an asymmetrical loss of the ability to deduce information from the eye region of faces. In a cohort of ten acquired prosopagnosia patients, we investigated and characterized the relationship between the structural brain damage and the behavioral face processing impairments. This dissertation examines the perceptual and neuroanatomical bases of the bias towards the eye region of a face in healthy individuals and the deviation from this bias in relation to the brain lesion locations in acquired prosopagnosia patients. Our findings confirm the dominance of the eyes in feature salience hierarchy in an adaptation aftereffects experiment. Investigation of the neuroanatomical correlates of the feature salience hierarchy shows that the activation pattern in Fusiform Face Area (FFA) correlates with the human perceptual performance, suggesting FFA’s involvement in the feature salience hierarchy demonstrated for the eye region of faces behaviorally. Examination of the eye region processing in prosopagnosia patients shows that both apperceptive and associative variants of prosopagnosia can cause eye region processing deficits, yet apperceptive prosopagnosia patients with inferior occipitotemporal cortex lesions have significantly more severe deficits in eye region processing. Face scanning patterns in a learning and memory task with unlimited viewing times demonstrate that both healthy and prosopagnosic individuals spend more time looking at the upper halves of faces while learning the faces, yet prosopagnosia patients spend significantly longer durations studying the faces. Our investigation of memory for half faces indicate that when presented in isolation, the upper and lower face halves do not have different contributions to face memory in healthy subjects. Prosopagnosia patients are similarly impaired in memory for upper and lower face halves.
Hamiltonian of mean force for damped quantum systems
Creators: name: Hilt, Stefanie
name: Thomas, Benedikt
name: Lutz, Eric
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a quantum system linearly coupled to a reservoir of harmonic oscillators. For finite coupling strengths, the stationary distribution of the damped system is not of the Gibbs form, in contrast to standard thermodynamics. With the help of the quantum Hamiltonian of mean force, we quantify this deviation exactly for a harmonic oscillator and provide approximations in the limit of high and low temperatures, and weak and strong couplings. Moreover, in the semiclassical regime, we use the quantum Smoluchowski equation to obtain results valid for any potential. We, finally, give a physical interpretation of the deviation in terms of the initial system-reservoir coupling.
description: 7 pages, 6 figures
Strain-tunable in-plane ferroelectricity and lateral tunnel junction in monolayer group-IV monochalcogenides
Creators: name: Priydarshi, Achintya
name: Chauhan, Yogesh Singh
name: Bhowmick, Somnath
name: Agarwal, Amit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: 2D Ferroelectric materials are promising for designing low-dimensional memory devices. Here, we explore strain tunable ferroelectric properties of group-IV monochalcogenides MX (M=Ge, Sn; X=S, Se) and their potential application in lateral field tunnel junction devices. We find that these monolayers have in-plane ferroelectricity, with their ferroelectric parameters being on par with other known 2D ferroelectric materials. Amongst SnSe, SnS, GeSe, and GeS, we find that GeS has the best ferroelectric parameters for device applications, which can be improved further by applying uniaxial tensile strain. We use the calculated ferroelectric properties of these materials to study the tunneling electroresistance (TER) of a 4 nm device based on lateral ferroelectric tunnel junction. We find a substantial TER ratio $10^3-10^5$ in the devices based on these materials, which can be further improved up to a factor of 40 on the application of tensile strain.
Study of D-mesons using hadronic decay channels with the ALICE detector
Creators: name: Bala, Renu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: At LHC energy, heavy quarks will be abundantly produced and the design of the ALICE Experiment will allow us to study their production using several channels. We investigate the feasibility of the study of D mesons reconstructed in their exclusive hadronic decay channel. After reviewing the ALICE potential for such studies, we will present some results for the two more promising decay channels i.e D0->KPi and D+ -> K-Pi+Pi+ obtained with 7 TeV pp data and 5.5 A TeV Pb-Pb Monte Carlo data .
description: 4 Pages, 5 Figures. Conference Proceeding to be published in Nuclear Physics B
Far Ultraviolet Emission in the A2597 and A2204 Brightest Cluster Galaxies
Creators: name: Oonk, J. B. R.
name: Hatch, N. A.
name: Jaffe, W.
name: Bremer, M. N.
name: van weeren, R. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use the Hubble Space Telescope ACS/SBC and Very Large Telescope FORS cameras to observe the Brightest Cluster Galaxies in Abell 2597 and Abell 2204 in the far-ultraviolet (FUV) F150LP and optical U, B, V, R, I Bessel filters. The FUV and U band emission is enhanced in bright, filamentary structures surrounding the BCG nuclei. These filaments can be traced out to 20 kpc from the nuclei in the FUV. Excess FUV and U band light is determined by removing emission due to the underlying old stellar population and mapped with 1 arcsec spatial resolution over the central 20 kpc regions of both galaxies. We find the FUV and U excess emission to be spatially coincident and a stellar interpretation requires the existence of a significant amount of 10000-50000 K stars. Correcting for nebular continuum emission and dust intrinsic to the BCG further increases the FUV to U band emission ratio and implies that stars alone may not suffice to explain the observations. However, lack of detailed information on the gas and dust distribution and extinction law in these systems prevents us from ruling out a purely stellar origin. Non-stellar processes, such as the central AGN, Scattering, Synchrotron and Bremsstrahlung emission are investigated and found to not be able to explain the FUV and U band measurements in A2597. Contributions from non-thermal processes not treated here should be investigated. Comparing the FUV emission to the optical H-alpha line emitting nebula shows good agreement on kpc-scales in both A2597 and A2204. In concordance with an earlier investigation by O'Dea et al. (2004) we find that O-stars can account for the ionising photons necessary to explain the observed H-alpha line emission.
description: accepted by mnras
A path integral for classical dynamics, entanglement, and Jaynes-Cummings model at the quantum-classical divide
Creators: name: Elze, Hans-Thomas
name: Gambarotta, Giovanni
name: Vallone, Fabio
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Liouville equation differs from the von Neumann equation 'only' by a characteristic superoperator. We demonstrate this for Hamiltonian dynamics, in general, and for the Jaynes-Cummings model, in particular. -- Employing superspace (instead of Hilbert space), we describe time evolution of density matrices in terms of path integrals which are formally identical for quantum and classical mechanics. They only differ by the interaction contributing to the action. This allows to import tools developed for Feynman path integrals, in order to deal with superoperators instead of quantum mechanical commutators in real time evolution. Perturbation theory is derived. Besides applications in classical statistical physics, the "classical path integral" and the parallel study of classical and quantum evolution indicate new aspects of (dynamically assisted) entanglement (generation). Our findings suggest to distinguish 'intra'- from 'inter-space' entanglement.
description: 22 pages; based on invited talk at Quantum 2010 - Advances in Foundations of Quantum mechanics and Quantum Information with Atoms and Photons (Torino, May 2010). To appear in Int. J. Qu. Info
Low-Interception Waveform: To Prevent the Recognition of Spectrum Waveform Modulation via Adversarial Examples
Creators: name: Xie, Haidong
name: Tan, Jia
name: Zhang, Xiaoying
name: Ji, Nan
name: Liao, Haihua
name: Yu, Zuguo
name: Xiang, Xueshuang
name: Liu, Naijin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Deep learning is applied to many complex tasks in the field of wireless communication, such as modulation recognition of spectrum waveforms, because of its convenience and efficiency. This leads to the problem of a malicious third party using a deep learning model to easily recognize the modulation format of the transmitted waveform. Some existing works address this problem directly using the concept of adversarial examples in the image domain without fully considering the characteristics of the waveform transmission in the physical world. Therefore, we propose a low-intercept waveform~(LIW) generation method that can reduce the probability of the modulation being recognized by a third party without affecting the reliable communication of the friendly party. Our LIW exhibits significant low-interception performance even in the physical hardware experiment, decreasing the accuracy of the state of the art model to approximately $15\%$ with small perturbations.
description: 4 pages, 4 figures, published in 2021 34th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2021
Wishart distributions for decomposable covariance graph models
Creators: name: Khare, Kshitij
name: Rajaratnam, Bala
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Gaussian covariance graph models encode marginal independence among the components of a multivariate random vector by means of a graph $G$. These models are distinctly different from the traditional concentration graph models (often also referred to as Gaussian graphical models or covariance selection models) since the zeros in the parameter are now reflected in the covariance matrix $Σ$, as compared to the concentration matrix $Ω=Σ^{-1}$. The parameter space of interest for covariance graph models is the cone $P_G$ of positive definite matrices with fixed zeros corresponding to the missing edges of $G$. As in Letac and Massam [Ann. Statist. 35 (2007) 1278--1323], we consider the case where $G$ is decomposable. In this paper, we construct on the cone $P_G$ a family of Wishart distributions which serve a similar purpose in the covariance graph setting as those constructed by Letac and Massam [Ann. Statist. 35 (2007) 1278--1323] and Dawid and Lauritzen [Ann. Statist. 21 (1993) 1272--1317] do in the concentration graph setting. We proceed to undertake a rigorous study of these "covariance" Wishart distributions and derive several deep and useful properties of this class.
description: Published in at http://dx.doi.org/10.1214/10-AOS841 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
The neurocognitive consequences of the wandering mind : a mechanistic account of sensory-motor decoupling
Creators: name: Kam, Julia
Publisher: name: University of British Columbia
Year: 2014

description: One unique characteristic of humans is our ability to mind wander – a state in which we engage in thoughts that are not directly tied to sensations from our surrounding environment. The Executive Function Model of mind wandering proposed the decoupling of our executive resources from the external environment is what facilitates the maintenance of these internal trains of thoughts. Accordingly, my dissertation aims to characterize how our neurocognitive processing of external stimuli waxes and wanes as our minds wander away from the task-at-hand. I present three sets of studies in this dissertation, each examining one specific aspect of neurocognitive engagement with the external environment, namely affective processing, behavioral performance monitoring, and attentional processing. Consistent with the Executive Function Model, my research indicates all three types of neurocognitive processing were attenuated during mind wandering episodes. This suggests mind wandering appears to disengage executive resources from our environment and direct them to inner streams of thoughts via this wide-ranging neurocognitive attenuation. One exception to this global pattern of attenuation of external processing is the detection of external stimuli that deviates from our expectations. Taken together, these observations suggest our ability to transiently decouple our thoughts from the external environment is integral to normal human neurocognitive functioning. A deeper understanding of this phenomenon may therefore inform strategies for regulating this mental experience so as to maximize their utility, and minimize their detrimental effects on our daily functioning and well-being.
Raw Data for The Art of Wellbeing in Education (AWE) Project
Creators: name: Havsteen-Franklin, Dominik
name: Cooper, Jasmine
name: Anas, Shafeena
Publisher: name: Brunel University London
Year: 2023
Subjects: Creative arts, media and communication curriculum and pedagogy
Curriculum and pedagogy theory and development
Work integrated learning (incl. internships)

description: This is the raw data for a study investigating integrated wellbeing approaches within a curriculum for business students. The data includes one outcome measure (psychological safety) and survey data regarding the acceptability of the design and content. University students are at higher risk than the general population of becoming mentally unwell. Dominant risk factors are to do with the university environment, including learning contextual factors and approaches to teaching. Whilst there are constraints on teaching practices driven by commodification of learning, evidence suggests that integrating wellbeing within the curriculum ultimately improves employability and life satisfaction. This paper describes the development of a multifaceted logic model that can be adapted to university contexts that enables core elements of most programmes to be mapped to wellbeing socioecological approaches to learning. A socioecological approach refers to considering the group as a microsystem representative of larger systems and integrating emotionally focused and creative learning experiences that enhance subject relevant content. We implemented and evaluated a series of workshops to improve psychological safety and learning experience. We used the logic model as an evaluation framework to map the inputs, activities, outputs, and outcomes. The pre and post outcome measure of psychological safety demonstrated significant change, where students were able to be more open and explorative in their learning experience. As well as this, a survey evaluation showed that students found the project acceptable, delivered to a high standard and found the content relevant to their subject area. Given that the culture and ethos of a University can have a major influence on the wellbeing of the students, the design of the logic model provides a premise for introducing and evaluating complex learning models that support education through creative, experiential team based learning.
Families of explicitly isogenous Jacobians of variable-separated curves
Creators: name: Smith, Benjamin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We construct six infinite series of families of pairs of curves (X,Y) of arbitrarily high genus, defined over number fields, together with an explicit isogeny from the Jacobian of X to the Jacobian of Y splitting multiplication by 2, 3, or 4. For each family, we compute the isomorphism type of the isogeny kernel and the dimension of the image of the family in the appropriate moduli space. The families are derived from Cassou--Noguès and Couveignes' explicit classification of pairs (f,g) of polynomials such that f(x_1) - g(x_2) is reducible.
An In-depth Analysis of Spam and Spammers
Creators: name: Nagamalai, Dhinaharan
name: Dhinakaran, Beatrice Cynthia
name: Lee, Jae Kwang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Electronic mail services have become an important source of communication for millions of people all over the world. Due to this tremendous growth, there has been a significant increase in spam traffic. Spam messes up user's inbox, consumes network resources and spread worms and viruses. In this paper we study the characteristics of spam and the technology used by spammers. In order to counter anti spam technology, spammers change their mode of operation, therefore continues evaluation of the characteristics of spam and spammers technology has become mandatory. These evaluations help us to enhance the existing anti spam technology and thereby help us to combat spam effectively. In order to characterize spam, we collected four hundred thousand spam mails from a corporate mail server for a period of 14 months from January 2006 to February 2007. For analysis we classified spam based on attachment and contents. We observed that spammers use software tools to send spam with attachment. The main features of this software are hiding sender's identity, randomly selecting text messages, identifying open relay machines, mass mailing capability and defining spamming duration. Spammers do not use spam software to send spam without attachment. From our study we observed that, four years old heavy users email accounts attract more spam than four years old light users mail accounts. Relatively new email accounts which are 14 months old do not receive spam. But in some special cases like DDoS attacks, we found that new email accounts receive spam and 14 months old heavy users email accounts have attracted more spam than 14 months old light users. We believe that this analysis could be useful to develop more efficient anti spam techniques.
description: 14 pages, 8 Figures,5 tables, IJSA Vol 2, No 2, 2008
VALYUTA QIMMATLIKLARINI QONUNGA XILOF RAVISHDA OLISH YOKI O'TKAZISH BILAN BOG'LIQ JINOYATLAR TAVSIFI
Creators: name: Haydarov, Jaloliddin
Publisher: name: Zenodo
Year: 2025

description: Ushbu tezisda valyuta qimmatliklarini qonunga xilof ravishda olish yoki o’tkazish jinоyаtining tavsifi, valyuta qimmatliklari tarkibi muhokama qilinadi. Valyuta qimmatliklarining turli guruhlari, qaysi qimmatliklar ushbu guruhlarga kirishi ko‘rib chiqiladi.
Simulating wet active polymers by multiparticle collision dynamics
Creators: name: Llahí, Judit Clopés
name: Martín-Gómez, Aitor
name: Gompper, Gerhard
name: Winkler, Roland G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The conformational and dynamical properties of active Brownian polymers embedded in a fluid depend on the nature of the driving mechanism, e.g., self-propulsion or external actuation of the monomers. Implementations of self-propelled and actuated active Brownian polymers in a multiparticle collision dynamics (MPC) fluid are presented, which capture the distinct differences between the two driving mechanisms. The active force-free nature of self-propelled monomers requires adaptations of the MPC simulation scheme, with its streaming and collision steps, where the monomer self-propulsion velocity has to be omitted in the collision step. Comparison of MPC simulation results for active polymers in dilute solution with results of Brownian dynamics simulations accounting for hydrodynamics via the Rotne-Prager-Yamakawa tensor confirm the suitability of the implementation. The polymer conformational and dynamical properties are analyzed by the static and dynamic structure factor, and the scaling behavior of the latter with respect to the wave-number and time dependence are discussed. The dynamic structure factor displays various activity-induced temporal regimes, depending on the considered wave number, which reflect the persistent diffusive motion of the whole polymer at small wave numbers, and the activity-enhanced internal dynamics at large wave numbers. The obtained simulation results are compared with theoretical predictions.
description: 6 figures
Bista et al. 2021 Supplementary Material from Thermosensitive sex chromosome dosage compensation in ZZ/ZW softshell turtles, Apalone spinifera
Creators: name: Bista, Basanta
name: Wu, Zhiqiang
name: Literman, Robert
name: Valenzuela, Nicole
Publisher: name: The Royal Society
Year: 2021

description: Supplementary text, figures and tables
Superfluidity of electron-hole pairs in randomly inhomogeneous bilayer systems
Creators: name: Bezuglyj, A. I.
name: Shevchenko, S. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In bilayer systems electron-hole (e-h) pairs with spatially separated components (i.e., with electrons in one layer and holes in the other) can be condensed to a superfluid state when the temperature is lowered. This article deals with the influence of randomly distributed inhomogeneities on the superfluid properties of such bilayer systems in a strong perpendicular magnetic field. Ionized impurities and roughenings of the conducting layers are shown to decrease the superfluid current density of the e-h pairs. When the interlayer distance is smaller than or close to the magnetic length, the fluctuations of the interlayer distance considerably reduce the superfluid transition temperature.
description: 13 pages, 3 figures
Electrodeposition and corrosion study of nanocrystalline cobalt and cobalt-iron alloy coatings
Creators: name: Nik Mohd Masdek, Nik Rozlin
Publisher: name: University of British Columbia
Year: 2014

description: Nanocrystalline materials with grain sizes less than 100 nm, have attracted considerable attention due to their enhanced properties as compared to their polycrystalline counterparts. However, investigation on the corrosion resistance of these materials is still lacking. In order to further expand their future applications, their corrosion behaviour is of great importance. Hence, in this study, nanocrystalline Co and CoFe alloy coatings were prepared through the electrodeposition process and their electrochemical corrosion behaviour were investigated. Depending on the environment, the effect of the nanocrystaline grain sizes as well as Fe alloying resulted in different corrosion responses. A decrease in grain size was observed with an increase in iron concentration that also leads to a change in crystal structure from HCP to BCC phase structure. Meanwhile, microhardness was first seen to increase gradually with the increase in iron content before it decreases with higher iron concentration of more than 18 wt%Fe. The corrosion properties of these electrodeposited nanocrystalline Co and CoFe alloy coatings were also studied in solutions ranging from acidic to alkaline. Nanocrystalline Co and CoFe exhibit higher corrosion rates in 0.1 M H₂SO₄ than in an alkaline environment. In deaerated acidic solutions, both nanocrystalline Co and CoFe alloy coatings showed only active anodic dissolution without any transition to passivation. Meanwhile, two stages of passivation were present in the alkaline solution which is reported to be due to the formation of a duplex passive film. The presence and absence of saccharin as an additive in the electrolyte both showed detrimental and beneficial effect on the corrosion behaviour of these nanostructured deposited coatings. By employing the electrochemical quartz crystal microbalance (EQCM), it was observed that the mass decrease was significant with an increase in saccharin concentration indicating an active dissolution. However, saccharin was observed to hinder the formation of a protective passive film on CoFe alloy coatings in alkaline solution. The presence of the sulphide ion also significantly decreased the corrosion resistance of deposited CoFe alloy coatings. The presence of sulphide accelerates markedly the anodic reaction. The dissolution rate was two times faster when S²− was added.
Migration of a moonlet in a ring of solid particles : Theory and application to Saturn's propellers
Creators: name: Crida, A.
name: Papaloizou, J. C. B.
name: Rein, H.
name: Charnoz, S.
name: Salmon, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Hundred meter sized objects have been identified by the Cassini spacecraft in Saturn's A ring through the so-called "propeller" features they create in the ring. These moonlets should migrate, due to their gravitational interaction with the ring ; in fact, some orbital variation have been detected. The standard theory of type I migration of planets in protoplanetary disks can't be applied to the ring system, as it is pressureless. Thus, we compute the differential torque felt by a moonlet embedded in a two-dimensional disk of solid particles, with flat surface density profile, both analytically and numerically. We find that the corresponding migration rate is too small to explain the observed variations of the propeller's orbit in Saturn's A-ring. However, local density fluctuations (due to gravity wakes in the marginally gravitationally stable A-ring) may exert a stochastic torque on a moonlet. Our simulations show that this torque can be large enough to account for the observations, depending on the parameters of the rings. We find that on time scales of several years the migration of propellers is likely to be dominated by stochastic effects (while the former, non-stochastic migration dominates after ~ 10^{4-5} years). In that case, the migration rates provided by observations so far suggests that the surface density of the A ring should be of the order of 700 kg/m^2. The age of the propellers shouldn't exceed 1 to 100 million years, depending on the dominant migration regime.
description: 17 pages, 5 figures, submitted to Astronomical Journal on february, the 23d
Rutgers-Eagleton Poll #002: New Jersey February 1972
Creators: name: Eagleton Institute Of Politics, Rutgers University
name: Wallace-Eljabar Foundation
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: How many years have you lived in New Jersey (1); most important problems in New Jersey and what concerns you about them (6); NJ Governor job approval (1); NJ state legislature job approval (1); awareness of state and local taxes (1); New Jersey pays more, less or the same in overall state and local taxes/property taxes/business and corporate taxes (3); do you get your money's worth of state and local taxes (2); progressive or flat tax (1); fairness of taxes (6); raise/lower taxes (1); spend more or less money on issues (12); statewide property tax (2); statewide income tax (7); New Jersey State Lottery approval (1); lottery ticket purchases (2); Off Track Betting (3); legalized sports gambling (1); Las Vegas style casinos in New Jersey (1); New Jersey no-fault insurance law (2); death penalty (1); awareness and confidence in state legislature after four Democrats gave Republicans control of State Assembly (3); awareness of Jersey Senators (1); President Nixon job approval (1); awareness of Republicans challenging Nixon for presidential primary (3); Representative Paul McCloskey vs. Representative John Ashbrook vs. Nixon for president (1); Nixon renomination (1); Democratic nomination for president (2); likelihood of voting for Alabama Governor John Wallace for president (1); registered to vote (1); voted in last election (1); how long have you lived at present residence (1); own or rent your apartment or house (1); price if you sold your house (1); how much do you pay in rent (1); what type of school do your children attend (1); someone in your family attending a public college or university in New Jersey (1); working class or middle class (1); work in New Jersey or out of state (1); telephone numbers (3).
title: Η αποτελεσματικότητα της εταιρικής ευθύνης στη βιομηχανία πετρελαίου και φυσικού αερίου στην Ελλάδα
title: Corporate social responsibility effectiveness in the oil and gas industry in Greece
Creators: name: Μηλαρογεωργος Αναστασιος
Publisher: name: Technical University of Crete
Year: 2021

description:   Ο στόχος της τρέχουσας διπλωματικής είναι να εξετάσει την αποτελεσματικότητα των δραστηριοτήτων CSR που εφαρμόζονται από εταιρείες που δραστηριοποιούνται στη βιομηχανία του πετρελαίου και του φυσικού αερίου στην Ελλάδα από την μεριά των καταναλωτών. Για το σκοπό αυτό, δόθηκαν ερωτηματολόγια σε 104 Έλληνες καταναλωτές μέσω Διαδικτύου. Η ανάλυση των δεδομένων πραγματοποιήθηκε με SPSS και περιλάμβανε περιγραφικά στατιστικά στοιχεία, παραμετρικές δοκιμές και αναλύσεις συσχέτισης (correlation) και παλινδρόμησης (regression).