cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Untargeted White-box Adversarial Attack with Heuristic Defence Methods in Real-time Deep Learning based Network Intrusion Detection System
Creators: name: Roshan, Khushnaseeb
name: Zafar, Aasim
name: Haque, Sheikh Burhan Ul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Network Intrusion Detection System (NIDS) is a key component in securing the computer network from various cyber security threats and network attacks. However, consider an unfortunate situation where the NIDS is itself attacked and vulnerable more specifically, we can say, How to defend the defender?. In Adversarial Machine Learning (AML), the malicious actors aim to fool the Machine Learning (ML) and Deep Learning (DL) models to produce incorrect predictions with intentionally crafted adversarial examples. These adversarial perturbed examples have become the biggest vulnerability of ML and DL based systems and are major obstacles to their adoption in real-time and mission-critical applications such as NIDS. AML is an emerging research domain, and it has become a necessity for the in-depth study of adversarial attacks and their defence strategies to safeguard the computer network from various cyber security threads. In this research work, we aim to cover important aspects related to NIDS, adversarial attacks and its defence mechanism to increase the robustness of the ML and DL based NIDS. We implemented four powerful adversarial attack techniques, namely, Fast Gradient Sign Method (FGSM), Jacobian Saliency Map Attack (JSMA), Projected Gradient Descent (PGD) and Carlini & Wagner (C&W) in NIDS. We analyzed its performance in terms of various performance metrics in detail. Furthermore, the three heuristics defence strategies, i.e., Adversarial Training (AT), Gaussian Data Augmentation (GDA) and High Confidence (HC), are implemented to improve the NIDS robustness under adversarial attack situations. The complete workflow is demonstrated in real-time network with data packet flow. This research work provides the overall background for the researchers interested in AML and its implementation from a computer network security point of view.
Comparison of Tissue Excitation and Mechanical Property Derivation Methods in VisR Ultrasound
Creators: name: Dhaliwal, Ranvir Singh
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: The underlying purpose of this research is to compare the accuracy and precision of the τ value of a nonlinear material generated using various iterations of VisR or an alternative look up table approach which will be explained shortly. A nonlinear material is used because soft tissue behaves nonlinearly. Even though by definition a nonlinear material will not have constant mechanical parameters, VisR is still used to produce clinically relevant measurements by estimating these parameters by modeling a nonlinear material as linear.
Gate-Tunable Spin Transport and Giant Electroresistance in Ferromagnetic Graphene Vertical Heterostructures
Creators: name: Myoung, Nojoon
name: Park, Hee Chul
name: Lee, Seung Joo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate spin transport through ferromagnetic graphene vertical heterostructures where a sandwiched tunneling layer is either a normal or ferroelectric insulator. We show that the spin-polarization of the tunneling current is electronically controlled via gate voltages. We also demonstrate that the tunneling current of Dirac fermions can be prohibited when the spin configuration of ferromagnetic graphene sheets is opposite. The giant electroresistance can thus be developed by using the proposed heterostructure in this study. The effects of temperature on the spin transport and the giant electroresistance ratio are also investigated. Our findings discover the prospect of manipulating the spin transport properties in vertical heterostructures through an electric fields via gate and bias electrodes.
description: 19 pages, 5 figures
The Fall and its Consequences: Shame and Salvation in Paradise Lost and Order and Disorder
Creators: name: Jones, Caitlyn
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Paradise Lost, by John Milton, and Order and Disorder, by Lucy Hutchinson, are
early modern poetic retellings of the creation story, as recounted in the Book of Genesis.
These retellings detail an account of the path humanity undertook to fall from the grace
of God and the understanding of what must be done in order for humanity to once again
enjoy a relationship with God. To understand what these narratives are saying about the
likelihood and actuality of human salvation, it is necessary to discuss how these
narratives present shame.
Bivariate Estimation-of-Distribution Algorithms Can Find an Exponential Number of Optima
Creators: name: Doerr, Benjamin
name: Krejca, Martin S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Finding a large set of optima in a multimodal optimization landscape is a challenging task. Classical population-based evolutionary algorithms typically converge only to a single solution. While this can be counteracted by applying niching strategies, the number of optima is nonetheless trivially bounded by the population size. Estimation-of-distribution algorithms (EDAs) are an alternative, maintaining a probabilistic model of the solution space instead of a population. Such a model is able to implicitly represent a solution set far larger than any realistic population size. To support the study of how optimization algorithms handle large sets of optima, we propose the test function EqualBlocksOneMax (EBOM). It has an easy fitness landscape with exponentially many optima. We show that the bivariate EDA mutual-information-maximizing input clustering, without any problem-specific modification, quickly generates a model that behaves very similarly to a theoretically ideal model for EBOM, which samples each of the exponentially many optima with the same maximal probability. We also prove via mathematical means that no univariate model can come close to having this property: If the probability to sample an optimum is at least inverse-polynomial, there is a Hamming ball of logarithmic radius such that, with high probability, each sample is in this ball.
Presentations during the 3rd Data Science School in Benin, 2022
Creators: name: Atemezing, Auguste Ghislain
name: Dugela, Jules
name: Ngonga, Axel-Cyrille
name: Lamine BA, Mouhamadou
name: Kana, Michel
name: Roussey, Catherine
name: Diallo, Gayo
name: Juganaru-Mathieu, Mihaela
name: Nyawa, Serge
name: Edoh, Thierry
name: Glitho, Roch
name: Stephan, Bernard
Publisher: name: Zenodo
Year: 2022
Subjects: Benin
Data Science
AI for Africa

description: The presentations during the 3rd Data Science School held in Dangbo, Benin 2022. Link of the website: https://ai4africa.github.io/DSS22/
ZeroPM Webinar: Are there really 6 million PFAS in PubChem?
Creators: name: Schymanski, Emma
name: Bolton, Evan
Publisher: name: Zenodo
Year: 2023
Subjects: PFAS
PubChem

description: ZeroPM Webinar: Are there really 6 million PFAS in PubChem?  The increasing concerns about poly and perfluoroalkyl substances (PFAS) and calls for action upon them as a class has spurred intense debates on how to define and enumerate the “PFAS Chemical Space”. There are now >50 PFAS lists openly available, including the OECD PFAS list of ~4700 PFAS (ENV/JM/MONO(2018)7) and the US EPA PFASMASTER list of >12000 PFAS. However, searching the large open chemical collection PubChem (114 million chemicals, Feb. 2023) reveals that >6 million entries match the latest OECD PFAS definition where PFAS “contains at least one alkyl CF2 group” (ENV/CBC/MONO(2021)25). This webinar will introduce listeners to the new classification browser in PubChem designed to help navigate these incredible numbers, the “PFAS and Fluorinated Compounds in PubChem Tree” (“PubChem PFAS Tree” for short). The current version contains six main sections: OECD PFAS definition (>6 million PFAS), organofluorine compounds (>19 million compounds), other diverse fluorinated compounds, OECD PFAS by chemistry (>7 million PFAS including salts and mixtures), several PFAS collections (from CompTox, NORMAN-SLE, NIST, OntoChem and PubChem) and finally regulatory collections. We will walk listeners through the PubChem PFAS Tree and the many features it offers to help users explore the PFAS space in PubChem and look forward to lively discussions with the audience afterwards. A recording of this webinar is available here on the ZeroPM YouTube channel!
Characterization of the Dual PHD Domains of the Rco1 Protein in Rpd3S Complex Function
Creators: name: Neal, Jennifer Elizabeth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Chromatin, which is comprised of DNA and histone proteins, permits compaction of genetic material and variable availability of DNA for processes such as gene transcription. An improved understanding of chromatin dynamics could lead to new cancer treatments. Changes to chromatin occur in response to chemical modifications applied to and removed from histones by protein complexes. Rco1 is a protein in the Rpd3S histone deacetylase complex. The aim of this research was to determine the roles of the two PHD domains of Rco1 in Rpd3S function. I made point mutations of evolutionarily conserved bases within each domain, and studied the PHD mutants using genetic and biochemical assays. My results indicate that both PHD domains may be involved with Rpd3S function and, specifically, Rco1 binding to chromatin. This research represents the first investigation of the role of the second PHD domain, and contributes to characterization of chromatin dynamics.
Interprofessional Communication in the Care of Adults with Cancer: Examining Providers’ Perceptions of Team Rounding
Creators: name: Van Den Eynde, Morgan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Interprofessional communication is fundamental to the delivery of safe, effective, patient centered care. Healthcare providers are providing more complex care to chronically ill patients and as a result the demands on the interprofessional team are growing. In order to achieve optimal care, interprofessional communication is necessary and one tool used to accomplish meeting these needs is interdisciplinary team rounding. In this study, twelve interviews were conducted with providers from five different professions: Nursing Assistant, Registered Nurse, Pharmacy, Advanced Practice Provider, and Physician. The purpose of these semi-structured interviews was to explore providers’ perceptions of interprofessional communication on an in-patient adult oncology unit at a large southern medical hospital. Six major themes emerged from the data: provider’s perceptions of interprofessional communication, perceptions of rounding, lack of information or communication, how the role is understood by others, perceptions of other’s roles, perceptions of the team and communication, and challenges or barriers. Findings from this study indicate each profession had unique perceptions, but all had a positive outlook on the necessity of interprofessional communication in the delivery of optimal patient care.
Tongues in Degree 4 Blaschke Products
Creators: name: Canela, Jordi
name: Fagella, Núria
name: Garijo, Antonio
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F10, 37E10

description: The goal of this paper is to investigate the family of Blasche products $B_a(z)=z^3\frac{z-a}{1-\bar{a}z}$, which is a rational family of perturbations of the doubling map. We focus on the tongue-like sets which appear in its parameter plane. We first study their basic topological properties and afterwords we investigate how bifurcations take place in a neighborhood of their tips. Finally we see how the period one tongue extends beyond its natural domain of definition.
The Dissolution of Religion in Spiritual Health Assessment Models: Religion versus Spirituality and the Need for Future Reform
Creators: name: Hale, Justin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: When most people think about spirituality and religion, they consider them to be often one and the same, as if spirituality is the core of religion. Many see them as inseparable entities, needing one another to exist. Some say that spirituality is the driving force of religion. However, some believe that spirituality is much more secular and individualistic, focusing more on the personal experience with the transcendent. The question that I am addressing in this thesis is how this divergence between religion and spirituality affects healthcare. As a reader, you may believe that this separation has no relation to medicine or healthcare as we know it. In this thesis, I will provide a brief historical background of this divergence with medicine, compare and contrast spirituality and religion’s medical impacts, and describe modern implications and my concerns with this division’s impact on our healthcare’s future.  I argue that not prioritizing both religion and spirituality equally in models to assess spiritual health ultimately decreases the quality of care provided to patients whose spirituality comes from communal religion and that an integrated, inter-professional  model is needed in order to most accurately assess overall patient health.
A Coordinated X-ray and Optical Campaign on the Nearest Massive Eclipsing Binary, Delta Ori Aa: I. Overview of the X-ray Spectrum
Creators: name: Corcoran, M. F.
name: Nichols, J. S.
name: Pablo, H.
name: Shenar, T.
name: Pollock, A. M. T.
name: Waldron, W. L.
name: Moffat, A. F. J.
name: Richardson, N. D.
name: Russell, C. M. P.
name: Hamaguchi, K.
name: Huenemoerder, D. P.
name: Oskinova, L.
name: Hamann, W. -R.
name: Naze, Y.
name: Ignace, R.
name: Evans, N. R.
name: Lomax, J. R.
name: Hoffman, J. L.
name: Gayley, K.
name: Owocki, S. P.
name: Leutenegger, M.
name: Gull, T. R.
name: Hole, K. T.
name: Lauer, J.
name: Iping, R. C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an overview of four phase-constrained Chandra HETGS X-ray observations of Delta Ori A. Delta Ori A is actually a triple system which includes the nearest massive eclipsing spectroscopic binary, Delta Ori Aa, the only such object which can be observed with little phase-smearing with the Chandra gratings. Since the fainter star, Delta Ori Aa2, has a much lower X-ray luminosity than the brighter primary, Delta Ori A provides a unique system with which to test the spatial distribution of the X-ray emitting gas around Delta Ori Aa1 via occultation by the photosphere of and wind cavity around the X-ray dark secondary. Here we discuss the X-ray spectrum and X-ray line profiles for the combined observation, having an exposure time of nearly 500 ksec and covering nearly the entire binary orbit. Companion papers discuss the X-ray variability seen in the Chandra spectra, present new space-based photometry and ground-based radial velocities simultaneous with the X-ray data to better constrain the system parameters, and model the effects of X-rays on the optical and UV spectrum. We find that the X-ray emission is dominated by embedded wind shock emission from star Aa1, with little contribution from the tertiary star Ab or the shocked gas produced by the collision of the wind of Aa1 against the surface of Aa2. We find a similar temperature distribution to previous X-ray spectrum analyses. We also show that the line half-widths are about $0.3-0.5\times$ the terminal velocity of the wind of star Aa1. We find a strong anti-correlation between line widths and the line excitation energy, which suggests that longer-wavelength, lower-temperature lines form farther out in the wind. Our analysis also indicates that the ratio of the intensities of the strong and weak lines of \ion{Fe}{17} and \ion{Ne}{10} are inconsistent with model predictions, which may be an effect of resonance scattering
description: accepted by ApJ; revised according to ApJ proof
The 10830 Angstrom Helium Line Among Evolved Stars in the Globular Cluster M4
Creators: name: Strader, Jay
name: Dupree, A. K.
name: Smith, Graeme H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Helium is a pivotal element in understanding multiple main sequences and extended horizontal branches observed in some globular clusters. Here we present a spectroscopic study of helium in the nearby globular cluster M4. We have obtained spectra of the chromospheric He I 10830 A line in 16 red horizontal branch, red giant branch, and asymptotic giant branch stars. Clear He I absorption or emission is present in most of the stars. Effective temperature is the principal parameter that correlates with 10830 A line strength. Stars with T_eff < 4450 K do not exhibit the helium line. Red horizontal branch stars, which are the hottest stars in our sample, all have strong He I line absorption. A number of these stars show very broad 10830 A lines with shortward extensions indicating outflows as high as 80-100 km/s and the possibility of mass loss. We have also derived [Na/Fe] and [Al/Fe] abundances to see whether these standard tracers of "second generation" cluster stars are correlated with He I line strength. Unlike the case for our previous study of Omega Cen, no clear correlation is observed. This may be because the sample does not cover the full range of abundance variations found in M4, or simply because the physical conditions in the chromosphere, rather than the helium abundance, primarily determine the He I 10830 A line strength. A larger sample of high-quality He I spectra of both "first" and "second" generation red giants within a narrow range of T_eff and luminosity is needed to test for the subtle spectroscopic variations in He I expected in M4.
description: ApJ in press
Mass spectra of mesons containing charm quarks - continuum limit results from twisted mass fermions
Creators: name: Cichy, Krzysztof
name: Kalinowski, Martin
name: Wagner, Marc
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present results from an ongoing computation of masses of $D$ mesons, $D_s$ mesons and charmonium, including both ground states and several parity and angular momentum excitations. We employ 2+1+1 flavours of dynamical maximally twisted mass fermions at three lattice spacings and three $u/d$ quark masses at each lattice spacing. We consider different combinations of valence quark discretizations, with either identical or opposite signs in front of the twisted mass terms. In the end, our setup allows for a good control of different kinds of systematic effects, in particular the quark mass dependence of the resulting meson masses and cut-off effects. We obtain good agreement with experiment for the majority of states and we discuss improvements that will be made to finalize the analysis.
description: 7 pages, 4 figures, Proceedings of the 33rd International Symposium on Lattice Field Theory (Lattice 2015), 14-18 July 2015, Kobe International Conference Center, Kobe, Japan
Food Stamps for Felons? An Analysis of the Impact of Public Assistance Policy on Offender Recidivism Rates
Creators: name: Young, Caitlin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Criminal justice reform is increasingly becoming a hot-button issue in public opinion discourse in the United States. This new wave of reforms is a response to decades of punitive policies that led to massive increases in US incarceration rates. In this thesis, I address one such policy: the lifetime ban on access to welfare benefits (TANF) and food stamps (SNAP) for drug felons after release from prison, passed as part of the welfare reforms of 1996. I collected data from states’ corrections departments in order to study the relationship between a given state’s level of implementation of the ban and its recidivism rates. I first perform a bivariate analysis of the aggregated recidivism data; then, I individually analyze six states (Alabama, California, Indiana, Massachusetts, New York, and Washington) to determine the effects of the TANF and SNAP bans. The limited nature of accessible criminal justice data did not allow me to find a causal relationship between these variables, but my results do suggest that more lenient public assistance accessibility for released offenders may be correlated with declines in recidivism rates.
Rendering an In-Browser, 360-Degree Environment from Disjoint Live Camera Feeds
Creators: name: Fernandez, Luke John
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This thesis details a novel approach to the rendering of a real-time 360-degree in-browser environment from a set of disjoint live camera feed. Developed to give police officers better visibility and reporting in the field, this study and the lessons learned during implementation demonstrate progress toward solving a high-stakes limited
resolution and affordability problem that occurs when rendering panoramas from today's off-the-shelf 360-degree camera technologies.
DDT [1, 1-Dichloro-2, 2-Bis (P-Chlorophenyl) Ethylene]: A List of References Selected and Compiled from the Files of the Pesticides Information Center, National Agricultural Library, 1960-1969
Creators: name: Pesticides Information Center, National Agricultural Library
name: Pesticides Information Center, National Agricultural Library
Publisher: name: Unknown
Year: 1970
Subjects: Crop Production/Industries
Environmental Economics and Policy
Livestock Production/Industries
Research and Development/Tech Change/Emerging Technologies

description: Excerpts: This compilation of 1,064 bibliographic citations covering all aspects of the research efforts on DDT [1,1-Dichloro-2, 2-bis (P-Chlorophenyl) Ethylene] was prepared from the computerized files of the Pesticides Information Center, National Agricultural Library. All items appearing in this publication have previously appeared in the Pesticides Documentation Bulletin. The articles cited are divided into a categorized bibliography with citations arranged alphabetically by author under the following major subjects: 10 Entomology -- 20 Crop Protection -- 30 Livestock Protection -- 40 Commodity Protection -- 50 Environmental. Contamination -- 55 Residues -- 60 Toxicology -- 65 Plant Physiology & Biochemistry – 70 Chemistry-- 80 Engineering -- 90 Industry. Includes subject, biographical, and author indexes.
A Universal Transition to Turbulence in Channel Flow
Creators: name: Sano, Masaki
name: Tamai, Keiichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: 82C26 (Primary), 76F06 (Secondary)

description: Transition from laminar to turbulent flow drastically changes the mixing, transport, and drag properties of fluids, yet when and how turbulence emerges is elusive even for simple flow within pipes and rectangular channels. Unlike the onset of temporal disorder, which is identified as the universal route to chaos in confined flows, characterization of the onset of spatio-temporal disorder has been an outstanding challenge because turbulent domains irregularly decay or spread as they propagate downstream. Here, through extensive experimental investigation of channel flow, we identify a distinctive transition with critical behavior. Turbulent domains continuously injected from an inlet ultimately decayed, or in contrast, spread depending on flow rates. Near a transition point, critical behavior was observed. We investigate both spatial and temporal dynamics of turbulent clusters, measuring four critical exponents, a universal scaling function and a scaling relation, all in agreement with the (2+1)-dimensional directed percolation universality class.
description: 10 pages, 4 figures, 1 table; Supplementary material: 13 pages, 7 figures
Alma Mater
Creators: name: Karsten, Alexander
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Includes the following poems: Derecho; Davie Poplar; ΤΑ ΚΑΛΑ ΔΙΩΚΩΜΕΝ; P2P; Manning Drive; Queen Bed; Lock Screen; St. Raphael’s Fair; Bald Head Island; Chess at Union Square; St. John’s College Library; Toward the end of the party; Cobb Fire; Helen; Halloween; Carter-Finley; “KD Fall Cocktail ‘13”; Gingko Leaves; Taking the GRE; Lenoir; Wake Forest 27, Millbrook 24 (4OT); Sorry; Crate & Barrel; Reynolds Coliseum; L.A.; There are two stories of Ovid’s death; Woollen; Sledding next to the ROTC; Too Late to the Party; Renovations at Sutton’s; Snow Day Breakfast Jam; Tornado Warning; Iowa State 85, UNC 83; Hark the Sound
The implementation and outcomes of the AVID program in the urban middle school setting
Creators: name: Bailey, Katrina
name: 0009-0003-2902-6538
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: AVID
Advancement-via-individual determination
Urban middle school(s)
Closing gaps
Program evaluation

description: This study examines the implementation and outcomes of the Advancement Via Individual Determination (AVID) program within the context of urban middle schools. AVID is a college and career readiness program designed to support students from historically underrepresented backgrounds in their academic pursuits. The purpose of this study was to investigate how the AVID program is implemented in urban middle schools and to determine its impact on students’ academic performance. Using a mixed-methods approach, this research employs quantitative and qualitative data collection methods to gather comprehensive insights. The study involves semi-structured interviews with teachers, campus administrators, district administrators, and coordinators involved with the implementation of the AVID program. Additionally, academic records and standardized test scores were analyzed to measure the outcomes for students who participated in the AVID program compared to their non-AVID peers. The findings of this study will contribute to the existing knowledge on the effectiveness of the AVID program specifically in urban middle schools. By examining the implementation strategies utilized by schools, this research aims to identify the factors that contribute to successful program execution. Furthermore, it seeks to explore how the AVID program influences students' college aspirations and their overall educational experiences in urban middle schools. The outcomes of this research include a comprehensive understanding of the challenges and opportunities associated with implementing the AVID program in urban middle schools. The study will also shed light on the impact of the program on academic performance, college aspirations, and the overall educational trajectory of participating students. These findings will inform educators, administrators, and policymakers of the potential benefits and limitations of implementing the AVID program within urban middle school settings. Overall, this dissertation seeks to contribute to the body of research on the AVID program by providing empirical evidence on its implementation and outcomes in urban middle schools. The findings will offer valuable insights to guide future program implementation and inform strategies to enhance the educational experiences and outcomes of students from underrepresented backgrounds in urban settings.
First insight into Chaetosphaeriaceae biology using genomic data
Creators: name: Cheng, Tian
name: Sklenář, František
name: Réblová, Martina
name: Busche, Tobias
name: Stadler, Marc
name: Kalinowski, Jörn
name: Kolařík, Miroslav
Publisher: name: Zenodo
Year: 2022

description: The species of the Chaetosphaeriaceae (Chaetosphaeriales, Sordariomycetes, Ascomycota) are microscopic asexually reproducing fungi, some of which belong to the life cycle of sexual morphs with macroscopic fruit bodies (~300 μm diam) perceptible as “black dots” on the surface of decaying plants. They are invisible to most of the people and difficult to find even by a trained eye. In addition, they are usually hard to cultivate and slow growing, what make them difficult to study. Traditionally, they are reported from the decaying plant matter in the forest habitat and some exhibit endophytic lifestyle . Surprisingly, analysis of metabarcoding data showed that they are also common soil fungi, dwelling in a bulk soil in grasslands and croplands. There are about 44 genera classified into this family with monographs available for several genera, but with very little knowledge about their biology. Studies showed that Chaetosphaeriaceae members are important degraders of lignocellulose in wood, litter and soil and have rich structural diversity of natural compounds (e.g. terpenoids, cyclic peptides, naphthoquinones, lactones, lipopeptides, xanthones). Three unpublished and unannotated draft genomes of Chaetosphaeriaceae are available (1000 fungal genome project). Nevertheless, the information about the genetic background of the basic pathways is missing in this fungal lineage. The same is true for the whole Chaetosphaeriales. Our study is filling this gap using analysis of genomes from 16 species.
Are some meteoroids rubble piles?
Creators: name: Borovicka, Jiri
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The possibility that some meteoroids in the size range 1 - 20 meters are rubble piles i.e. assembles of boulders of various sizes held together only by small van der Waals forces, is investigated. Such meteoroids are expected to start disrupting into individual pieces during the atmospheric entry at very low dynamic pressures of ~ 25 Pa, even before the onset of ablation. The heterogeneous bodies as Almahata Sitta (asteroid 2008 TC3) and Benesov are primary candidates for rubble piles. Nevertheless, by analyzing the deceleration, wake, and light curve of the Benesov bolide, we found that the meteoroid disruption started only at a height of 70 km under dynamic pressure of 50 kPa. No evidence for a very early fragmentation was found also for the Chelyabinsk event.
description: 6 pages, 4 figures. Paper presented at the IAU Symposium 318 Asteroids: New Observations, New Models (Honolulu, USA, August 3-7, 2015). Accepted for publication in the Proceedings of the International Astronomical Union
Impact of the Pil-Chp Chemosensory System of Pseudomonas aeruginosa on cyclic AMP Production and Twitching Motility
Creators: name: Wang, Boya
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The Chp chemosensory system plays a central role in detecting host signals and
activating virulence gene expression, allowing the opportunistic bacterial pathogen
Pseudomonsa aeruginosa to cause a wide array of diseases. Specifically, the Chp system
controls production of intracellular cyclic AMP (cAMP) and type IV pilus mediated
surface motility (twitching motility). cAMP serves as an allosteric activator of the
transcription factor Vfr, a global regulator of virulence gene expression. A central
component of the Chp chemosensory system is the hybrid ChpA kinase. In addition to a
two stand alone receiver domains PilG and PilH, ChpA is composed of a conserved
kinase domain, a serine-containing phosphotransfer domain (Spt 1), a threoninecontaining
phosphotransfer domain (Tpt 1), six histidine-containing phosphotransfer
domains (Hpt 1-6), and a CheY-like receiver domain (ChpArec). We hypothesized that
multiple domains may be necessary to fine-tune signal transduction for twitching motility
and/or intracellular cAMP levels.
As a first step in assessing function, we used a biochemical approach to determine
which ChpA domains were capable of participating in phosphotransfer events. We found
that the Hpt 2 and 3 domains could only reversibly receive phosphoryl groups from
ChpArec rather than ATP and Hpt 3 was able to transfer phosphoryl to PilH. Further, we
found that ChpArec could both accept phosphoryl groups and transfer phosphoryl groups
to Hpt 2-6. Based on these results, we generated point mutations in Hpt 2, 3 and ChpArec
domains in all possible combinations and evaluated the impact on cAMP signaling and
twitching motility. To assess cAMP signaling, we used a synthetic chromosomal
transcriptional reporter system that reflects intracellular cAMP levels and Vfr activation.
Mutant alleles were introduced onto the chromosome and confirmed by
sequencing or expressed from plasmid in a chpA deletion strain. Western blot analysis
was used to confirm stability and wildtype expression level of the mutant proteins. Using
this approach, we found that mutation of Hpt 2 and 3 domains had opposing effects on
cAMP signaling and twitching motility. Loss of ChpArec significantly decreased
twitching motility and increased cAMP production. Lastly, Hpt3 phenocopied a PilH
mutant while a Hpt23 double mutant phenocopied a Hpt 2 single mutant in cAMP
production and twitching motility. We are currently testing the impact of additional
combination mutations. Overall, the mechanism of phosphotransfer in the P. aeruginosa
ChpA kinase was deduced via in vitro and in vivo methods that shed new light on a
complex system that mediates type IV pili bacterial motility.
The red giant branch phase transition: Implications for the RGB luminosity function bump and detections of Li-rich red clump stars
Creators: name: Cassisi, Santi
name: Salaris, Maurizio
name: Pietrinferni, Adriano
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We performed a detailed study of the evolution of the luminosity of He-ignition stage and of the red giant branch bump luminosity during the red giant branch phase transition for various metallicities. To this purpose we calculated a grid of stellar models that sample the mass range of the transition with a fine mass step equal to ${\rm 0.01M_\odot}$. We find that for a stellar population with a given initial chemical composition, there is a critical age (of 1.1-1.2~Gyr) around which a decrease in age of just 20-30 million years causes a drastic drop in the red giant branch tip brightness. We also find a narrow age range (a few $10^7$ yr) around the transition, characterized by the luminosity of the red giant branch bump being brighter than the luminosity of He ignition. We discuss a possible link between this occurrence and observations of Li-rich core He-burning stars.
description: 5 pages, 4 figures, Astronomy & Astrophysics in press
Private Investment and Terrorism in African States
Creators: name: Argov, Noam
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: The African continent is a region of increasing economic opportunity and threats of terrorism.
What accounts for these seemingly contradictory trends? This study argues that the recent
terrorism rise is partly due to increasing investment by multinational corporations (MNCs) in
Africa. I examine MNC investment in infrastructure through the mechanism of Private
Participation in Infrastructure (PPI). I argue that greater infrastructure investment gives African
states the incentive and military capacity to reassert control over territories previously lost to
violent non-state actors. MNCs introduce a third party into the bargaining between militants and
governments over resource control. Since MNC investment empowers the state, the resulting
territorial contestation may induce non-state actors to respond with terrorism. I argue that
African states will experience increasing terrorist attacks as PPI increases and furthers the
process of state consolidation. Increasing PPI gives terrorist campaigns an initial burst of resolve
to prolong their initiatives. However, I ultimately assert that if this PPI investment is allowed to
appreciate through initial periods of increased violence, African states can eventually use this
new power to accelerate the demise of terrorist groups. Sustained MNC investment will
strengthen African governments and decrease the survivability of terrorist campaigns. I test these
predictions on terrorist attacks and campaigns in the post Cold War period from 1990-2006.
Superconformal indices of generalized Argyres-Douglas theories from 2d TQFT
Creators: name: Song, Jaewon
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study superconformal indices of 4d N=2 class S theories with certain irregular punctures called type $I_{k, N}$. This class of theories include generalized Argyres-Douglas theories of type $(A_{k-1}, A_{N-1})$ and more. We conjecture the superconformal indices in certain simplified limits based on the TQFT structure of the class S theories by writing an expression for the wave function corresponding to the puncture $I_{k, N}$. We write the Schur limit of the wave function when $k$ and $N$ are coprime. When $k=2$, we also conjecture a closed-form expression for the Hall-Littlewood index and the Macdonald index for odd $N$. From the index, we argue that certain short-multiplet which can appear in the OPE of the stress-energy tensor is absent in the $(A_1, A_{2n})$ theory. We also discuss the mixed Schur indices for the N=1 class S theories with irregular punctures.
description: 28 pages, 2 figures, v3: corrections and simplification of some formulas
Applying Perspective Taking and Social Influence to Exercise Narratives
Creators: name: Little, Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The present study examines factors related to the entertainment-education strategy in addition to revisiting Ajzen's (1991) theory of planned behavior in a narrative context. Entertainment education is a health communication strategy that involves educating and persuading individuals regarding health issues by incorporating health information with a story. In addition, when readers identify with a character in a narrative, they are more likely to adopt the character's attitude, beliefs, and goals. The present study employs Batson et al.'s (1997) method on perspective taking. This study utilizes a 2x2 factorial design. The first manipulation is whether the participant is instructed to remain objective or imagine how the character feels. In addition, Courneya et al. (2000) found that social support was a stronger predictor of intentions than subjective norm in the exercise context. The second manipulation is whether a participant reads a narrative about a student who receives social support to exercise, or a student who receives social pressure to exercise. Results showed that although participants who imagined the character’s perspective reported higher transportation and identification, there were little to no differences in attitudes and beliefs due to the manipulations. Participants also perceived support in addition to pressure in the subjective norm narrative. However, perspective taking and type of social influence appear to interact to influence certain attitudes and beliefs. Implications discussed include the potential for narratives to be used as an effective form of entertainment education to promote healthy behaviors.
Testing Modified Gravity with Cosmic Shear
Creators: name: Harnois-Déraps, Joachim
name: Munshi, Dipak
name: Valageas, Patrick
name: van Waerbeke, Ludovic
name: Brax, Philippe
name: Coles, Peter
name: Rizzo, Luca
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the cosmic shear data from the Canada-France-Hawaii Telescope Lensing Survey to place constraints on $f(R)$ and {\it Generalized Dilaton} models of modified gravity. This is highly complimentary to other probes since the constraints mainly come from the non-linear scales: maximal deviations with respects to the General-Relativity + $Λ$CDM scenario occurs at $k\sim1 h \mbox{Mpc}^{-1}$. At these scales, it becomes necessary to account for known degeneracies with baryon feedback and massive neutrinos, hence we place constraints jointly on these three physical effects. To achieve this, we formulate these modified gravity theories within a common tomographic parameterization, we compute their impact on the clustering properties relative to a GR universe, and propagate the observed modifications into the weak lensing $ξ_{\pm}$ quantity. Confronted against the cosmic shear data, we reject the $f(R)$ $\{ |f_{R_0}|=10^{-4}, n=1\}$ model with more than 99.9% confidence interval (CI) when assuming a $Λ$CDM dark matter only model. In the presence of baryonic feedback processes and massive neutrinos with total mass up to 0.2eV, the model is disfavoured with at least 94% CI in all different combinations studied. Constraints on the $\{ |f_{R_0}|=10^{-4}, n=2\}$ model are weaker, but nevertheless disfavoured with at least 89% CI. We identify several specific combinations of neutrino mass, baryon feedback and $f(R)$ or Dilaton gravity models that are excluded by the current cosmic shear data. Notably, universes with three massless neutrinos and no baryon feedback are strongly disfavoured in all modified gravity scenarios studied. These results indicate that competitive constraints may be achieved with future cosmic shear data.
description: 13 pages, 7 figures, 2 tables
The Chinese Dream: Cultivating Expansionist Chinese Nationalism in the South China Sea and the Role of Weibo
Creators: name: Field, Lydia
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: My thesis examines the Chinese Dream, as articulated by Xi Jinping, and the ways in which the Chinese Communist Party has facilitated an expansionist shift in Chinese nationalism over the past thirty years. It highlights how this change can be observed on Weibo, a Chinese microblogging website. My research focuses primarily on the political narrative surrounding the territorial disputes in the East and South China Seas, and the role of history in cultivating expansionist Chinese nationalism. I have incorporated many Weibo posts that utilize historic mobilization language to foster expansionist and pro-military feelings to further the goals of the Chinese Dream, and describe the various ways in which the CCP has limited forms of online dissent and challenges to its official narrative of history.
SER ADULTO AUTISTA Y SUS DILEMAS VITALES
Creators: name: Palacios Trigo, Enrique
Publisher: name: figshare
Year: 2023
Subjects: Personality and individual differences
Clinical psychology
Social psychology
Social and personality psychology not elsewhere classified
Community psychology
Educational psychology
Child and adolescent development

description: Desde un inicio tenía la convicción de elegir un tema relacionado al autismo en adultos, por mi profundo interés en la materia y a partir de mi propia condición autista. En la actualidad, no existe un amplio acervo bibliográfico sobre el autismo en la población adulta y menos aún, escritos donde uno pueda acceder a descripciones en primera persona de adultos autistas dialogando sobre sí mismos, puesto que la mayoría de textos se concentran en las conclusiones de investigaciones, sobre todo, en poblaciones infantiles para la identificación de características diagnósticas, abordajes precoces o intervenciones en etapa escolar referentes al aspecto socioemocional y niveles de aprendizaje.
 Por otro lado, mi motivación para desarrollar el tema va en relación a mi deseo de aportar al campo de investigación, dado que el adulto autista estaría quedando camuflado entre la población típica, siendo difícilmente identificado y algunas de sus características singulares podrían estar pasando muy desapercibidas en la edad adulta, como sus afectos, sus formas de procesamiento cognitivo y sensorial, sus profundos intereses, sus maneras de vincularse afectiva y socialmente, sus formas de comunicarse, comportarse y captar la información de su entorno.
title: Internet Financial Risk Management Study
Creators: name: Du, Guansan
Publisher: name: University of Southern Queensland
Year: 2023
Subjects: classificationCode: 380107
subject: Financial economics

description: Driven by technological change, the Internet has rapidly integrated with the traditional financial sector of the economy, and has continued to advance and develop new features. The Internet is no longer simply providing support and services to traditional finance in terms of technology and operation mode, but has continuously penetrated the traditional financial field, resulting in an emerging financial system that breaks the traditional model of financial intermediation, eliminates information asymmetry, reduces transaction costs and improves payment efficiency. This new financial model enables information sharing, resources sharing, economic activities facilitation and scale effect formation. Internet finance can play an important role in areas that traditional finance can not, and thus can better serve the economy and promote the development of human society. However, Internet finance as a new financial model in the process of rapid development will certainly be accompanied by hidden risks of various kinds, and has a huge impact on the traditional financial industry, financial markets and financial regulators. Therefore, this thesis raises the important issue of risk management research in Internet finance. The development of the financial industry under the Internet technology revolution is studied. Based on the characteristics of Internet finance, the types of risks that are different from those of traditional finance are identified. Based on the qualitative analysis of the identification of the types of Internet financial risks, the quantitative analysis method is used to establish the evaluation index system and do quantitative evaluation analysis of Internet financial risks. The use of BP (Back Propagation) neural network expands the application of BP neural network in the field of Internet finance, and provides a new development direction for the early warning and assessment of Internet credit risk. Comparative analysis of ML (Machine Learning) and DL (Deep Learning) algorithms in Internet credit risk assessment is used and explored to improve the accuracy of financial prediction. The exploration of edge computing and blockchain technology intends to solve the great security risks in the financial network transaction process and the certain restrictions on the current use of blockchain technology in mobile terminal equipment. The research object of this thesis is Internet financial risk management. Under the current social, economic and financial environment, it explores the theoretical basis of Internet financial risk management, and analyses the risk management framework and methods of Internet financial risk assessment, risk warning and risk control. The aim is to achieve healthy and stable development of the Internet finance industry, thus contributing to the real economy and the promotion of human social progress.