cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Optimization and Purification of Essential Reagents Involved in the Large Scale Production of Synthetic Heparin
Creators: name: Lien, Holly
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The Liu lab focuses on synthesizing an ultra-low molecular weight heparin using a
chemoenzymatic process that involves various enzymes and substrates. Current methods
developed in the lab are used to synthesize and purify these biosynthetic enzymes and cofactors
from E. coli crude lysates made with recombinant DNA technology. One of the key enzymes
required for synthesis is pmHS2, with corresponding key substrates of UDP-GlcUA and UDP-GlcNTFA.
The purpose of this project was to optimize and purify essential reagents involved in
the large-scale synthesis of heparin to improve the efficiency of production. Variables such as
pH, temperature, and concentration were manipulated to determine optimal conditions for the
reactions performed. Mass spectrometry and HPLC were used to analyze samples from the
reactions and to determine the amount of product yielded. Nickle column chromatography was
used to purify pmHS2 efficiently. With this project, variables were successfully optimized and
optimal product yields were obtained. By producing a synthetic form of heparin that is
reproducible and affordable for patients, many risks pertaining to the current production of
heparin can be eliminated.
Correlation-temperature phase diagram of prototypical infinite layer rare earth nickelates
Creators: name: Pascut, Gheorghe Lucian
name: Cosovanu, Lucian
name: Haule, Kristjan
name: Quader, Khandker F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The discovery of superconductivity in hole-doped infinite layer nickelates, RNiO2 (R = Nd, Pr, La) has garnered sustained interest in the field. A definitive picture of low-energy many-body states has not yet emerged. We provide new insights into the low-energy physics, based on our embedded dynamical mean-field theory calculations, and propose a correlation (U)-temperature (T) phase diagram. The key features are a low-T Fermi liquid (FL) phase, a high-T Curie-Weiss regime, and an antiferromagnetic phase in a narrow U-T region. We associate the onset of the FL phase with partial screening of Ni-d moments; however, full screening occurs at lower temperatures. This may be related to insufficiency of conduction electrons to effectively screen the Ni-d moments, suggestive of Nozieres Exhaustion Principle. Our results suggest that RNiO2 are in the paramagnetic state, close to an antiferromagnetic dome, making magnetic fluctuations feasible. This may be consequential for superconductivity.
description: 19 pages, 18 figures
อิทธิพลของคุณภาพการบริการอิเล็กทรอนิกส์ในฐานะตัวแปรคั่นกลางโมเดลความสัมพันธ์เชิงสาเหตุของการตัดสินใจซื้อหนังสืออิเล็กทรอนิกส์ของผู้บริโภคในประเทศไทย
Creators: name: ณฐกร ตระการศักดิกุล
Publisher: name: วารสารสหวิทยาการวิจัย: ฉบับบัณฑิตศึกษา
Year: 2022
Subjects: คุณภาพการบริการอิเล็กทรอนิกส์
กระบวนการตัดสินใจซื้อ
หนังสืออิเล็กทรอนิกส์

description: วารสารสหวิทยาการวิจัย: ฉบับบัณฑิตศึกษา, 11, 2, 209-224
ปัจจัยที่ส่งผลต่อความสำเร็จของโครงการนวัตกรรมระบบเฝ้าระวังโรคติดต่อของชุมชนท้องถิ่นแบบบูรณาการ
Creators: name: วรญา จตุพัฒน์รังสี
Publisher: name: วารสารสหวิทยาการวิจัย: ฉบับบัณฑิตศึกษา
Year: 2022
Subjects: องค์กรปกครองส่วนท้องถิ่น
โครงการนวัตกรรม
โคโรน่าไวรัส 2019

description: วารสารสหวิทยาการวิจัย: ฉบับบัณฑิตศึกษา, 11, 2, 225-237
Topological quantum transition driven by charge-phonon coupling in higher-order topological insulators
Creators: name: Lu, Congwei
name: Zhang, Mei
name: Wang, Haibo
name: Ai, Qing
name: Liu, Tao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate a second-order topological quantum transition of a modified Kane-Mele model driven by electron-phonon interaction. The results show that the system parameters of the bare modified Kane-Mele model are renormalized by the electron-phonon interaction. Starting from the second-order topological phase for the bare model, the increasing electron-phonon coupling strength can drive the second-order topological insulator into a semimetal phase. Such a secondorder topological phase transition is characterized by the band-gap closing, discontinuity of averaged ferminoic number and topological invariant.
description: 8 pages,6 figures
Shape evolution and collective dynamics of quasifission in TDHF
Creators: name: Umar, A. S.
name: Oberacker, V. E.
name: Simenel, C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: At energies near the Coulomb barrier, capture reactions in heavy-ion collisions result either in fusion or in quasifission. The former produces a compound nucleus in statistical equilibrium, while the second leads to a reseparation of the fragments after partial mass equilibration without formation of a compound nucleus. Extracting the compound nucleus formation probability is crucial to predict superheavy-element formation cross-sections. It requires a good knowledge of the fragment angular distribution which itself depends on quantities such as moments of inertia and excitation energies which have so far been somewhat arbitrary for the quasifission contribution. Methods: We investigate the evolution of the nuclear density in time-dependent Hartree-Fock (TDHF) calculations leading to quasifission. Our main goal is to extract ingredients of the formula used in the analysis of experimental angular distributions. These include the moment-of-inertia and temperature. We study the dependence of these quantities on various initial conditions of the reaction process. Results: The evolution of the moment of inertia is clearly non-trivial and depends strongly on the characteristics of the collision. The temperature rises quickly when the kinetic energy is transformed into internal excitation. Then, it rises slowly during mass transfer. Conclusions: Fully microscopic theories are useful to predict the complex evolution of quantities required in macroscopic models of quasifission.
description: 10 pages, 7 figures
Online Expectation-Maximization Based Frequency and Phase Consensus in Distributed Phased Arrays
Creators: name: Rashid, Mohammed
name: Nanzer, Jeffrey A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Distributed phased arrays are comprised of separate, smaller antenna systems that coordinate with each other to support coherent beamforming towards a destination. However, due to the frequency drift and phase jitter of the oscillators, as well as the frequency and phase estimation errors induced at the nodes, there exists decoherence that degrades the beamforming process. A decentralized frequency and phase consensus (DFPC) algorithm was proposed in prior work for undirected networks in which the nodes locally share their frequencies and phases with their neighbors to reach synchronization. Kalman filtering (KF) was also integrated with DFPC (KF-DFPC) to lower the total residual phase error upon convergence. Since these DFPC-based algorithms rely on the average consensus protocol, they do not converge for directed networks. In this paper, we propose a push-sum based frequency and phase consensus (PsFPC) algorithm for the directed networks. The residual phase error of PsFPC is theoretically derived as well. Kalman filtering is also integrated with PsFPC and the resulting KF-PsFPC algorithm shows a significant reduction in the residual phase error upon convergence. KF assumes that the model parameters, i.e., the measurement noise and innovation noise covariance matrices, are known. Since they may not be known in practice, we develop an online expectation maximization (EM) based algorithm that iteratively computes the maximum likelihood (ML) estimate of the unknown matrices in an online manner. EM is integrated with KF-PsFPC to propose the EM-KF-PsFPC algorithm. Simulation results are included where the performance of the PsFPC-based algorithms is analyzed for different distributed phased arrays and is compared to other algorithms.
MEDINA Organisational Evidence Assessment - User Manual
Creators: name: Deimling, Franz
Publisher: name: Zenodo
Year: 2023
Subjects: organizacional evidence
user manual

description: The Assessment and Management of Organisational Evidence component (a.k.a. AMOE) enables Cloud Service Providers (CSP) to generate assessment results for the continuous auditing of their security policy documents.
On the contribution of cosmic-ray interactions in the circumgalactic gas to the observed high-energy neutrino flux
Creators: name: Kalashev, Oleg
name: Martynenko, Nickolay
name: Troitsky, Sergey
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Cosmic rays escaping the Milky-Way disk interact with circumgalactic gas which fills the virial volume of our Galaxy. These interactions should produce guaranteed fluxes of energetic diffuse neutrinos and photons observable at the Earth. This neutrino flux would be a plausible contribution to the spectrum measured by the IceCube neutrino observatory: the energy emitted in this way is weakly constrained from cascade gamma rays, since the cascades have no time to develop, but the arrival directions of the neutrinos do not point to the Galactic disk, in agreement with observations. However, previous studies reported very different estimates of the corresponding neutrino flux, so it was unclear if this contribution to the observed spectrum is essential. Here we readdress the calculation of this diffuse neutrino flux component under various assumptions about the cosmic-ray spectrum and propagation in the circumgalactic medium. We find that even with these variations, this contribution to the observed neutrino flux remains subleading provided multimessenger constraints are satisfied.
description: 19 pages, 6 figures; v2: discussions extended; version accepted by JCAP
Energy Efficiency in MIMO Underlay and Overlay Device-to-Device Communications and Cognitive Radio Systems
Creators: name: Zappone, Alessio
name: Matthiesen, Bho
name: Jorswieck, Eduard A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper addresses the problem of resource allocation for systems in which a primary and a secondary link share the available spectrum by an underlay or overlay approach. After observing that such a scenario models both cognitive radio and D2D communications, we formulate the problem as the maximization of the secondary energy efficiency subject to a minimum rate requirement for the primary user. This leads to challenging non-convex, fractional problems. In the underlay scenario, we obtain the global solution by means of a suitable reformulation. In the overlay scenario, two algorithms are proposed. The first one yields a resource allocation fulfilling the first-order optimality conditions of the resource allocation problem, by solving a sequence of easier fractional problems. The second one enjoys a weaker optimality claim, but an even lower computational complexity. Numerical results demonstrate the merits of the proposed algorithms both in terms of energy-efficient performance and complexity, also showing that the two proposed algorithms for the overlay scenario perform very similarly, despite the different complexity.
description: to appear in IEEE Transactions on Signal Processing
Classical and quantum machine learning applications in spintronics
Creators: name: Ghosh, Kumar
name: Ghosh, Sumit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we demonstrate the applications of classical and quantum machine learning in quantum transport and spintronics. With the help of a two-terminal device with magnetic impurity we show how machine learning algorithms can predict the highly non-linear nature of conductance as well as the non-equilibrium spin response function for any random magnetic configuration. By mapping this quantum mechanical problem onto a classification problem, we are able to obtain much higher accuracy beyond the linear response regime compared to the prediction obtained with conventional regression methods. We finally describe the applicability of quantum machine learning which has the capability to handle a significantly large configuration space. Our approach is applicable for solid state devices as well as for molecular systems. These outcomes are crucial in predicting the behavior of large-scale systems where a quantum mechanical calculation is computationally challenging and therefore would play a crucial role in designing nano devices.
description: 9 pages, 8 figures
The International Touring Organ: Redefining the Physical and Musical Limitations of Concert Organ Performance in the 21st Century
Creators: name: Hamilton, Jakob
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: The International Touring Organ (ITO), built by Marshall & Ogletree and designed by Cameron Carpenter, is a portable, full-scale digital organ centered around the concept of deepening the relationship between the organ and the organist. With its hybridized technical nature combining the sounds of historically significant instruments and its unique ability to be sonically tailorable to nearly any acoustic environment, the ITO possesses the potential to redefine the boundaries of organ performance without physical limitations. Unfortunately, the instrument’s full range of capabilities have remained largely misunderstood and unanalyzed. The primary objective of this work will be to address these logistical obscurities within historical contexts in order to better understand how the ITO could impact concert organ performance and technique in the 21st century.
MEDINA Catologue of Controls and Metrics - User Manual
Creators: name: Etxaniz, Iñaki
Publisher: name: Zenodo
Year: 2023
Subjects: Security metrics
Security Controls
User Mnaual
Certification schemes

description: The Catalogue of Controls and Metrics (a.k.a. Catalogue) provides the necessary technological means for the endorsement of any security scheme and their related attributes. Furthermore, it provides guidance for the implementation, as well as the (self-)assessment of security requirements.
The Connection between Supernova Remnants and the Galactic Magnetic Field: A Global Radio Study of the Axisymmetric Sample
Creators: name: West, J. L.
name: Safi-Harb, S.
name: Jaffe, T.
name: Kothes, R.
name: Landecker, T. L.
name: Foster, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The study of supernova remnants (SNRs) is fundamental to understanding the chemical enrichment and magnetism in galaxies, including our own Milky Way. In an effort to understand the connection between the morphology of SNRs and the Galactic magnetic field (GMF), we have examined the radio images of all known SNRs in our Galaxy and compiled a large sample that have an "axisymmetric" morphology, which we define to mean SNRs with a "bilateral" or "barrel"-shaped morphology, in addition to one-sided shells. We selected the cleanest examples and model each of these at their appropriate Galactic position using two GMF models, those of Jansson & Farrar (2012a), which includes a vertical halo component, and Sun et al. (2008) that is oriented entirely parallel to the plane. Since the magnitude and relative orientation of the magnetic field changes with distance from the sun, we analyse a range of distances, from 0.5 to 10 kpc in each case. Using a physically motivated model of a SNR expanding into the ambient GMF, we find the models using Jansson & Farrar (2012a) are able to reproduce observed morphologies of many SNRs in our sample. These results strongly support the presence of an off-plane, vertical component to the GMF, and the importance of the Galactic field on SNR morphology. Our approach also provides a potential new method for determining distances to SNRs, or conversely, distances to features in the large-scale GMF if SNR distances are known.
description: 24 pages, 8 figures plus one 5-page appendix figure, 3 tables, accepted to A&A
French Indochina meta-cognition, phronesis and strategic foresight: metaphors for ecological transformation
Creators: name: Huston, Simon
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Business
subject: Defense and Security Studies
subject: Public Administration
subject: Military History
subject: Environmental Policy
subject: Business Administration, Management, and Operations
subject: European History
subject: Public Policy
subject: History
subject: Arts and Humanities
subject: Public Affairs, Public Policy and Public Administration
subject: Peace and Conflict
subject: Military and Veterans Studies
subject: Economic History
subject: Economics
subject: Asian Studies
subject: Environmental Studies
subject: Strategic Management Policy
subject: Asian History
subject: Political Science
subject: FOS: Political science
subject: International Relations
subject: Political Economy
subject: Social and Behavioral Sciences
subject: International and Area Studies
subject: Dien Bien Phu
subject: Ecological transformation
subject: French Indochina
subject: Military strategy
subject: Regime switching
subject: Resilience
subject: Theatre dominance

description: The project analyses the French defeat in Indochina to illustrate aspects of situational metacogniton, phronesis and strategic foresight. The French Indochina War (1946-1954) provides an exotic milieu to systematically explore strategic failure that resonates today. The study reviews the Indochina War literature across five themes, looking for military insights as metaphors for strategic ecological transformation. It explores the evolution of casualties and limits of conflict modelling. The Indochina War was an unnecessary and catastrophic one for France, Vietnam and, subsequently, the Untied States. Notwithstanding some heroic military actions, the dissonance between the dirty reality of ‘la sale guerre’ and the antiquated ideals for which it was ostensibly pursued, undermined the French position. In short the war merely delayed and bloodied an inevitable post-colonial regime shift. Systemic dysfunction and leadership failure has parallels for ecological transformation. Today, diminished situational cognition, ignorance or limited foresight inevitably entails widespread and unnecessary suffering.
A multiple-time-step integration algorithm for particle-resolved simulation with physical collision time
Creators: name: Zhu, Zhengping
name: Hu, Ruifeng
name: Zheng, Xiaojing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this paper, we present a multiple-time-step integration algorithm (MTSA) for particle collisions in particle-resolved simulations. Since the time step required for resolving a collision process is much smaller than that for a fluid flow, the computational cost of the traditional soft-sphere model by reducing the time step is quite high in particle-resolved simulations. In one state-of-the-art methodology, collision time is stretched to several times the flow solver time step for the fluid to adapt to the sudden change in particle motion. However, the stretched collision time is not physical, the hydrodynamic force may be severely underestimated during a stretched collision, and the simulation of sediment transport may be sensitive to the stretched collision time. The proposed MTSA adopts different time steps to resolve fluid flow, fluid-particle interaction, and particle collision. We assessed the MTSA for particle-wall collisions as well as particle-particle collisions, determined the optimal iteration number in the algorithm, and obtained excellent agreements with experimental measurements and reference simulations. The computational cost of the MTSA can be reduced to about one order of magnitude less than that using the traditional soft-sphere model with almost the same accuracy. The MTSA was then implemented in a particle-resolved simulation of sediment transport with thousands of particles. {By comparing the results obtained using the MTSA and a version of the stretching collision time algorithm similar to Costa et al.(2015), we found that stretching the collision time reduced particle stiffness, weakened particle entrainment, and affected some turbulence and particle statistics.
Enhancement of chiral edge currents in ($d$+1)-dimensional atomic Mott-band hybrid insulators
Creators: name: Ferraretto, Matteo
name: Richaud, Andrea
name: Del Re, Lorenzo
name: Fallani, Leonardo
name: Capone, Massimo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the effect of a local interatomic repulsion on synthetic heterostructures where a discrete synthetic dimension is created by Raman processes on top of $SU(N)$-symmetric two-dimensional lattice systems. At a filling of one fermion per site, increasing the interaction strength, the system is driven towards a Mott state which is adiabatically connected to a band insulator. The chiral currents associated with the synthetic magnetic field increase all the way to the Mott transition, where they reach the maximum value, and they remain finite in the whole insulating state. The transition towards the Mott-band insulator is associated with the opening of a gap within the low-energy quasiparticle peak, while a mean-field picture is recovered deep in the insulating state.
description: 27 Pages, 10 Figures
Suppmentary material for Original or Fake: Value attributed to text-based archives generated by artificial intelligence.
Creators: name: Darda, Kohinoor
name: Carre, Marion
name: Cross, Emily
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 179999 Psychology and Cognitive Sciences not elsewhere classified

description: Openly available natural language generation (NLG) algorithms can generate human-like texts across domains. Given their potential, ethical challenges arise such as being used as a tool for misinformation. It is necessary to understand both how these texts are generated from an algorithmic point of view, and how they are evaluated by a general audience. In this study, our aim was to investigate how people react to texts generated algorithmically, whether they are indistinguishable from original/human-generated texts, and the value people assign these texts. Using original text-based archives, and text-based archives generated by artificial intelligence (AI), findings from our pre-registered study (N = 228) revealed that people were more likely to preserve original archives compared to AI-generated archives. Although participants were unable to accurately distinguish between AI generated and original archives, participants assigned lower value to archives they categorized as AI-generated compared to those they categorized as original. People's judgements of value were also influenced by their attitudes toward AI. These findings provide a richer understanding of how the emergent practice of automated text creation alters the practices of readers and writers, and have implications for how readers' attitudes toward AI affect the use and value of AI-based applications and creations.
Collapse in Self-gravitating Turbulent Fluids
Creators: name: Murray, Daniel W.
name: Chang, Philip
name: Murray, Norman W.
name: Pittman, John
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Motivated by the nonlinear star formation efficiency found in recent numerical simulations by a number of workers, we perform high-resolution adaptive mesh refinement simulations of star formation in self-gravitating turbulently driven gas. As we follow the collapse of this gas, we find that the character of the flow changes at two radii, the disk radius $r_d$, and the radius $r_*$ where the enclosed gas mass exceeds the stellar mass. Accretion starts at large scales and works inwards. In line with recent analytical work, we find that the density evolves to a fixed attractor, $ρ(r,t ) \rightarrow ρ(r)$, for $r_d
description: 22 pages, 31 figures, Accepted to Monthly Notices of the Royal Astronomical Society
Does Volunteerism Shape Adolescent Attitude and Behavior?
Creators: name: O'Connor, Blake
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Driven by schools’ need and professional demand, both the academy and society have become preoccupied with how to teach social and emotional skills. This study examines the relationship between adolescent volunteerism and outcomes of attitude and behavior. Data were selected from the National Longitudinal Survey of Youth (NLSY79) Child and Young Adults surveys for adolescents from 10 to 14 years old. Four hypotheses were crafted and tested using contemporaneous analyses of 2004 and 2006 data, and by controlling for 2004 volunteering in the analyses of 2006 outcomes. A negative relationship between volunteering and indicators for problematic behavior and depressive symptoms was supported in at least one series of regressions. A positive relationship between volunteerism and adolescent self-perception was supported in two time frames. In addition to demographic characteristics, the influence of siblings, maternal education, father presence, and mother-child relationship were controlled in analyses. This study offers some support for the influence of volunteerism on adolescent attitudinal and behavioral outcomes.
Ergotropy and entanglement in critical spin chains
Creators: name: Mula, Begoña
name: Fernández, Eva M.
name: Alvarellos, José E.
name: Fernández, Julio J.
name: García-Aldea, David
name: Santalla, Silvia N.
name: Rodríguez-Laguna, Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A subsystem of an entangled ground state is in a mixed state. Thus, if we isolate this subsystem from its surroundings we may be able to extract work applying unitary transformations, up to a maximal amount which is called ergotropy. Once this work has been extracted, the subsystem will still contain some bound energy above its local ground state, which can provide valuable information about the entanglement structure. We show that the bound energy for half a free fermionic chain decays as the square of the entanglement entropy divided by the chain length, thus approaching zero for large system sizes, and we conjecture that this relation holds for all 1D critical states.
Food Security in Relation to Diabetes Management and Assessment of Food Security Status in Children with Diabetes Mellitus
Creators: name: Noe, Violet
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Food insecurity (FI) and diabetes are common in youth in the United States. FI has been consistently associated with poorer glycemic control and poorer diet quality among adults with diabetes, but there is limited research on these associations in children. Furthermore, the Household Food Security Survey Module (HFSSM), the most commonly used tool to assess FI, has been shown to be an adequate measure of FI at both the population and the individual level, but little to no research exists on the use of this survey tool in pediatric patients with diabetes. This study aimed to investigate FI in relationship to hemoglobin A1c (HbA1c) and diet quality as well as the use of the HFSSM to measure household FI of children with diabetes. Participants were youth ages 7-19 recruited from the University of North Carolina Hospitals’ Pediatric Endocrinology clinic (N=30, mean age 13.9, mean HbA1c 9.0%). Data were collected through an electronic questionnaire and through individual interviews. HbA1c was collected from the medical record. No significant differences were found between FI status and HbA1c or diet quality. Interviews were conducted using a semi-structured interview guide and discussions were audio-taped, transcribed, and analyzed using standard inductive qualitative methods. Interview data indicated that parents from food insecure households made efforts to shield their children from the effects of FI by reducing or altering their own food intake and indicated that parents had worry or anxiety about and prior difficulty with FI negatively impacting their child’s diabetes management. Interpretation of some of the questions of the HFSSM also differed between parents from food insecure households and parents from food secure households. Given the small sample size of this study, more research is needed in the future to test associations between FI status and diabetes management and diet quality in children as well as investigate the use of the HFSSM to measure household FI of children with diabetes.
Supplemental Material from Convergence and contingency in the evolution of a specialized mode of life: multiple origins and high disparity of rock-boring bivalves
Creators: name: Collins, Katie S.
name: Edie, Stewart M.
name: Jablonski, David
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences

description: Supporting text, figures and tables.
Effects of magnetic anisotropy on spin dynamics of ferromagnetic frustrated chain
Creators: name: Onishi, Hiroaki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: By exploiting density-matrix renormalization group techniques, we investigate the spin dynamics of a spin-1/2 one-dimensional J1-J2 XXZ model with competing ferromagnetic J1 and antiferromagnetic J2 exchange couplings under applied magnetic fields. Numerical results of spin excitation spectra show that in the field-induced spin quadrupole regime, the longitudinal component has a gapless mode and the transverse component has a gapped mode irrespective of the exchange anisotropy. The excitation gap of the transverse spin excitation increases as the exchange anisotropy increases over the XY-like and Ising-like regions, demonstrating that two-magnon bound states are stabilized due to the easy-axis anisotropy.
description: 6 pages, 3 figures, Proceedings of SCES2014 (July 7-11, 2014, Grenoble, France)
Privacy-Preserving Edge Caching: A Probabilistic Approach
Creators: name: Hassanpour, Seyedeh Bahereh
name: Khonsari, Ahmad
name: Moradian, Masoumeh
name: Shariatpanahi, Seyed Pooya
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Edge caching (EC) decreases the average access delay of the end-users through caching popular content at the edge network, however, it increases the leakage probability of valuable information such as users preferences. Most of the existing privacy-preserving approaches focus on adding layers of encryption, which confronts the network with more challenges such as energy and computation limitations. We employ a chunk-based joint probabilistic caching (JPC) approach to mislead an adversary eavesdropping on the communication inside an EC and maximizing the adversary's error in estimating the requested file and requesting cache. In JPC, we optimize the probability of each cache placement to minimize the communication cost while guaranteeing the desired privacy and then, formulate the optimization problem as a linear programming (LP) problem. Since JPC inherits the curse of dimensionality, we also propose scalable JPC (SPC), which reduces the number of feasible cache placements by dividing files into non-overlapping subsets. We also compare the JPC and SPC approaches against an existing probabilistic method, referred to as disjoint probabilistic caching (DPC) and random dummy-based approach (RDA). Results obtained through extensive numerical evaluations confirm the validity of the analytical approach, the superiority of JPC and SPC over DPC and RDA.
Computing Bayes: From Then 'Til Now'
Creators: name: Martin, Gael M.
name: Frazier, David T.
name: Robert, Christian P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: This paper takes the reader on a journey through the history of Bayesian computation, from the 18th century to the present day. Beginning with the one-dimensional integral first confronted by Bayes in 1763, we highlight the key contributions of: Laplace, Metropolis (and, importantly, his co-authors!), Hammersley and Handscomb, and Hastings, all of which set the foundations for the computational revolution in the late 20th century -- led, primarily, by Markov chain Monte Carlo (MCMC) algorithms. A very short outline of 21st century computational methods -- including pseudo-marginal MCMC, Hamiltonian Monte Carlo, sequential Monte Carlo, and the various `approximate' methods -- completes the paper.
description: Material that appeared in an earlier paper, `Computing Bayes: Bayesian Computation from 1763 to the 21st Century' (arXiv:2004.06425) has been broken up into two separate papers: this historical overview of, and timeline for, all computational developments is retained; and a secondary paper (arXiv:2112.10342), which provides a more detailed review of 21st century
COVID Hypothesis Pre-Registration
Creators: name: Packer, Dominic
name: Marsh, Jessecae
name: Marsh, Jessecae
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: Update of pre-registration for identity/social cure hypotheses (Packer) following some initial analysis of T1 data and prior to T2 data collection. Analyses to date primarily examined factor structure of items related to key constructs and results of reported EFAs will guide our analytic strategy moving forward.
Characterizing the Evolution of the Macrophage-Tropic Entry Phenotype in SIV
Creators: name: Raines, Samuel
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Simian immunodeficiency virus (SIV) infection of rhesus macaques serves as a model of human immunodeficiency virus type 1 (HIV-1) infection in humans. It is well established that HIV-1 primarily infects CD4+ T cells, but this has not been well studied for SIV. Understanding the cells that can support viral replication is important for understanding where HIV-1 and SIV replicate during untreated infection, the cells that may harbor viral reservoirs throughout antiretroviral therapy (ART), and the cells that should be the target of curative strategies. Current methods for determining the entry phenotype of HIV-1 utilize Affinofile cells (cells with drug-inducible human CCR5 and CD4) to measure HIV-1’s ability to enter cells expressing a low density of CD4; which has been shown to be a defining feature of viruses adapted to replication in macrophages (i.e. macrophage-tropic viruses). However, the ability to assess the cellular tropism of SIV has been limited by a lack of such tools. Consequently, an SIV/macaque model system that recapitulates this important part of HIV-1-human interaction is of importance. In conjunction with the development of a cell line expressing rhesus CD4 and rhesus CCR5 for improved, future phenotyping studies, I examined whether 21 SIV envelope proteins were macrophage-tropic based on their ability to efficiently enter Affinofiles expressing a low density of CD4. After cloning and phenotyping assays, viral entry phenotypes were measured and showed the presence of low CD4-using, or macrophage-tropic, virus at all time points measured in both the CSF and plasma compartments over the course of infection. Because the evolution of macrophage tropism was undetectable, this may be a typical phenotype of SIV throughout pathogenesis.
$ε$-Expansion of Multivariable Hypergeometric Functions Appearing in Feynman Integral Calculus
Creators: name: Bera, Souvik
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new methodology, suitable for implementation on computer, to perform the $ε$-expansion of hypergeometric functions with linear $ε$ dependent Pochhammer parameters in any number of variables. Our approach allows one to perform Taylor as well as Laurent series expansion of multivariable hypergeometric functions. Each of the coefficients of $ε$ in the series expansion is expressed as a linear combination of multivariable hypergeometric functions with the same domain of convergence as that of the original hypergeometric function. We present illustrative examples of hypergeometric functions in one, two and three variables which are typical of Feynman integral calculus.
description: Nucl. Phys. B version
Investigating the Relationship between Social Support and Mental Health Functioning among People with Serious Mental Illnesses on Probation in North Carolina
Creators: name: Longmate, Connie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Introduction: People with mental illnesses are overrepresented in the criminal justice system. Justice-involved people with mental illnesses experience worse criminal justice outcomes and are at increased risk of homelessness, unemployment, stigma, trauma, and poor physical health. Low social support is repeatedly associated with worse mental health outcomes in the general population but little is known about prosocial support among probationers with serious mental illnesses and its impact on mental health functioning. We sought to investigate the relationship between social support and mental health functioning for probationers with severe mental illnesses. Methods: A cross-sectional study design, using data from a large, randomized controlled trial of specialty mental health probation, was used to examine the relationships between social support and mental health functioning. To assess social support, we used the Duke-UNC Functional Social Support Questionnaire (FSSQ) and to assess mental health functioning we used the Symptom Checklist-10-Revised (SCL-10-R). The sample was separated into probationers who self-reported high vs. low social support and we used bivariate inferential statistics to examine the relationship between group status (i.e. high vs. low social support) and demographic and mental health outcomes. Results: Probationers with depression and PTSD were more likely to self-report low social support. Additionally, the low support group reported higher symptomatology of mental illness than the high support group. Probationers in the low support group also reported lower quality relationships with their probation officers. Discussion: The findings presented here have important practical implications for developing needs assessments for people who are justice-involved. Future research should inform the possibility of probation officers providing social support to people on probation; investigate the feasibility of delivering trauma-informed care in the criminal justice system; and highlight the importance of connecting people with mental illnesses to appropriate social supports and community services.
Field Theory for Zero Sound and Ion Acoustic Wave in Astrophysical Matter
Creators: name: Gabadadze, Gregory
name: Rosen, Rachel A
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We set up a field theory model to describe the longitudinal low energy modes in high density matter present in white dwarf stars. At the relevant scales, ions -- the nuclei of oxygen, carbon and helium -- are treated as heavy point-like spin-0 charged particles in an effective field theory approach, while the electron dynamics is described by the Dirac Lagrangian at the one-loop level. We show that there always exists a longitudinal gapless mode in the system irrespective whether the ions are in a plasma, crystal, or quantum liquid state. For certain values of the parameters, the gapless mode can be interpreted as a zero sound mode and, for other values, as an ion acoustic wave; we show that the zero sound and ion acoustic wave are complementary to each other. We discuss possible physical consequences of these modes for properties of white dwarfs.
description: 12 pages, 1 figure
AI-driven Hypergraph Network of Organic Chemistry: Network Statistics and Applications in Reaction Classification
Creators: name: Mann, Vipul
name: Venkatasubramanian, Venkat
Publisher: name: arXiv
Year: 2022
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Quantitative Methods (q-bio.QM)
subject: Computation (stat.CO)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Rapid discovery of new reactions and molecules in recent years has been facilitated by the advancements in high throughput screening, accessibility to a much more complex chemical design space, and the development of accurate molecular modeling frameworks. A holistic study of the growing chemistry literature is, therefore, required that focuses on understanding the recent trends and extrapolating them into possible future trajectories. To this end, several network theory-based studies have been reported that use a directed graph representation of chemical reactions. Here, we perform a study based on representing chemical reactions as hypergraphs where the hyperedges represent chemical reactions and nodes represent the participating molecules. We use a standard reactions dataset to construct a hypernetwork and report its statistics such as degree distributions, average path length, assortativity or degree correlations, PageRank centrality, and graph-based clusters (or communities). We also compute each statistic for an equivalent directed graph representation of reactions to draw parallels and highlight differences between the two. To demonstrate the AI applicability of hypergraph reaction representation, we generate dense hypergraph embeddings and use them in the reaction classification problem. We conclude that the hypernetwork representation is flexible, preserves reaction context, and uncovers hidden insights that are otherwise not apparent in a traditional directed graph representation of chemical reactions.
Training AI systems for research and non research purposes: surveying the stock images providers and (scientific) publishers.
Creators: name: Schirru, Luca
name: Margoni, Thomas
name: Flynn, Sean
Publisher: name: Zenodo
Year: 2023

description: Slides presented at the IP Researchers Europe Conference (IPRE) hosted by WIPO/WTO (Geneva, 29 and 30 June, 2023)
Schur-positive sets of permutations via products of grid classes
Creators: name: Elizalde, Sergi
name: Roichman, Yuval
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E05, 05A05, 05E10 (primary), 05E18, 05A15, 05A19 (secondary)

description: Characterizing sets of permutations whose associated quasisymmetric function is symmetric and Schur-positive is a long-standing problem in algebraic combinatorics. In this paper we present a general method to construct Schur-positive sets and multisets, based on geometric grid classes and the product operation. Our approach produces many new instances of Schur-positive sets, and provides a broad framework that explains the existence of known such sets that until now were sporadic cases.
description: Final version to appear in J. Algebraic Combin
A critical review of the literature profiling musculoskeletal injuries within military basic training.
Creators: name: Lyons, Kate
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Physiotherapy
subject: Medicine and Health Sciences
subject: Rehabilitation and Therapy

description: A critical review using a modified downs and black protocol to determine the profile of musculoskeletal injuries - the location of injury, the nature/type of injury and activities where injuries usually occur during military basic training.
Testing Symmergent gravity through the shadow image and weak field photon deflection by a rotating black hole using the M87$^*$ and Sgr. A$^*$ results
Creators: name: Pantig, Reggie C.
name: Övgün, Ali
name: Demir, Durmuş
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study rotating black holes in symmergent gravity, and use deviations from the Kerr black hole to constrain the parameters of the symmergent gravity. Symmergent gravity induces the gravitational constant $G$ and quadratic curvature coefficient $c_{\rm O}$ from the flat spacetime matter loops. In the limit in which all fields are degenerate in mass, the vacuum energy $V_{\rm O}$ can be wholly expressed in terms of $G$ and $c_{\rm O}$. We parametrize deviation from this degenerate limit by a parameter ${\hat α}$ such that the black hole spacetime is dS for ${\hat α} < 1$ and AdS for ${\hat α} > 1$. In constraining the symmergent parameters $c_{\rm O}$ and ${\hat α}$, we utilize the EHT observations on the M87* and Sgr. A* black holes. We investigate first the modifications in the photon sphere and shadow size, and find significant deviations in the photonsphere radius and the shadow radius with respect to the Kerr solution. We also find that the geodesics of time-like particles are more sensitive to symmergent gravity effects than the null geodesics. Finally, we analyze the weak field limit of the deflection angle, where we use the Gauss-Bonnet theorem for taking into account the finite distance of the source and the receiver to the lensing object. Remarkably, the distance of the receiver (or source) from the lensing object greatly influences the deflection angle. Moreover, $c_{\rm O}$ needs be negative for a consistent solution. In our analysis, the rotating black hole acts as a particle accelerator and possesses the sensitivity to probe the symmergent gravity.
description: 22 pages, 9 figures, 2 tables. Accepted for publication in the European Physical Journal C (https://link.springer.com/article/10.1140/epjc/s10052-023-11400-6)