cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fidelity-based distance bounds for $N$-qubit approximate quantum error correction
Creators: name: Fiusa, Guilherme
name: Soares-Pinto, Diogo O.
name: Pires, Diego Paiva
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Eastin-Knill theorem is a central result of quantum error correction theory and states that a quantum code cannot correct errors exactly, possess continuous symmetries, and implement a universal set of gates transversely. As a way to circumvent this result, there are several approaches in which one gives up on either exact error correction or continuous symmetries. In this context, it is common to employ a complementary measure of fidelity as a way to quantify quantum state distinguishability and benchmark approximations in error correction. Despite having useful properties, evaluating fidelity measures stands as a challenging task for quantum states with a large number of entangled qubits. With that in mind, we address two distance measures based on the sub- and superfidelities as a way to bound error approximations, which in turn require a lower computational cost. We model the lack of exact error correction to be equivalent to the action of a single dephasing channel, evaluate the proposed fidelity-based distances both analytically and numerically, and obtain a closed-form expression for a general $N$-qubit quantum state. We illustrate our bounds with two paradigmatic examples, an $N$-qubit mixed GHZ state and an $N$-qubit mixed $W$ state.
description: 12 pages, 6 figures. Close to published version
EUTOPIA Citizen Science Starter Kit - Tool 16: Communication and engagement plan
Creators: name: Veeckman, Carina
name: Van den Bogaert, Lawrence
name: Keersmaekers, Floor
name: Livémont, Eline
Publisher: name: Zenodo
Year: 2023
Subjects: citizen science
communication
engagement

description: This template is part of Module 4 “Getting started with citizen science” (Phase 2 – Develop) of the EUTOPIA Citizen Science Starter Kit. It helps you to develop a communication and engagement plan. This template is developed by the authors of the handbook ‘A practical guide to communication and engagement in citizen science’, published by Scivil.
Characteristics and classification of southern Appalachian spruce-fir forests
Creators: name: Watson-Cook, Emily Layne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Southern Appalachian spruce-fir forests are relatively uncommon communities that occur at high elevations in the mountains of North Carolina, Virginia, Tennessee, and West Virginia. These forests are relicts of the Pleistocene left over from a period of glaciation during which spruce-fir forests were distributed contiguously throughout the Appalachians. Previous examinations of the southern Appalachian spruce and fir ecotone have indicated the importance of elevation as a driver of species composition. Dominant tree species exhibit a gradient from northern hardwoods to red spruce (Picea rubens) to Fraser fir (Abies fraseri) as elevation increases. These communities have been sampled by the Carolina Vegetation Survey (CVS), a large-scale research program aimed at inventory and monitoring of the natural vegetation of the Carolinas. I obtained spruce-fir forest data from the CVS database and used agglomerative hierarchical clustering methods to group plots based on species cover class values, as defined by CVS protocol. I examined community composition and environmental characteristics of these clusters and used them to identify distinct plant community types. I made reference to previous descriptions by the U.S. National Vegetation Classification and the North Carolina Natural Heritage Community Classification (Fourth Approximation) during the classification process. This was done with the goal of evaluating and improving upon these previous spruce-fir community type classifications. Given that future changes in climate are anticipated to affect the distribution of spruce-fir forests, further knowledge of their dynamics and distribution is needed to inform conservation planning.
Push button reproduction attempt of a research claim from Imhoff & Lamberty (2020)
Creators: name: Somo, Angela
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: We selected the claim that conspiracy theories that suggest that the coronavirus pandemic is a hoax are expected to primarily be related to refusal to engage in containment-related behavior (e.g., hygiene, physical distancing). This reflects the following statement from the paper’s abstract: “Whereas conspiracy beliefs describing the pandemic as a hoax were more strongly associated with reduced containment-related behavior, conspiracy beliefs about sinister forces purposefully creating the virus related to an increase in self-centered prepping behavior.” Containment-related behaviors was regressed on the ‘hoax’ conspiracy belief scale, and political orientation. This analysis yielded that believing that COVID-19 was a hoax was a strong negative predictor of containment-related behaviors like hand-washing and keeping physical distance, B=-0.647, SE=0.109, p<.001. The focal test in the original paper is: believing that COVID-19 was a hoax was a strong negative predictor of containment-related behaviors like hand-washing and keeping physical distance, B=-0.647, SE=0.109, p<.001.
MPEC 2023-Q99 : 2023 QS3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 QS3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Spin-dependent direct gap emission in tensile-strained Ge films on Si substrates
Creators: name: Vitiello, E.
name: Virgilio, M.
name: Giorgioni, A.
name: Frigerio, J.
name: Gatti, E.
name: De Cesari, S.
name: Bonera, E.
name: Grilli, E.
name: Isella, G.
name: Pezzoli, F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The circular polarization of direct gap emission of Ge is studied in optically-excited tensile-strained Ge-on-Si heterostructures as a function of doping and temperature. Owing to the spin-dependent optical selection rules, the radiative recombinations involving strain-split light (cG-LH) and heavy hole (cG-HH) bands are unambiguously resolved. The fundamental cG-LH transition is found to have a low temperature circular polarization degree of about 85% despite an off-resonance excitation of more than 300 meV. By photoluminescence (PL) measurements and tight binding calculations we show that this exceptionally high value is due to the peculiar energy dependence of the optically-induced electron spin population. Finally, our observation of the direct gap doublet clarifies that the light hole contribution, previously considered to be negligible, can dominate the room temperature PL even at low tensile strain values of about 0.2%.
Research Quality of Registered Reports Compared to the Traditional Publishing Model
Creators: name: Errington, Timothy
name: Soderberg, Courtney
name: Hummer, Lilian
name: Singleton Thorn, Felix
name: Esterling, Kevin
name: Nosek, Brian
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences
subject: Meta-research
subject: Peer review
subject: Publishing models
subject: Registered Reports
subject: Science Technology and Society
subject: Scientific community
subject: Social sciences
subject: FOS: Social sciences

description: This is an amendment to the original pre-registration for this project (osf.io/a6xfj).
Dynamical characteristics of Rydberg electrons released by a weak electric field
Creators: name: Diesen, Elias
name: Saalmann, Ulf
name: Richter, Martin
name: Kunitski, Maksim
name: Dörner, Reinhard
name: Rost, Jan M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The dynamics of ultra-slow electrons in the combined potential of an ionic core and a static electric field is discussed. With state-of-the-art detection it is possible to create such electrons through strong intense-field photo-absorption and to detect them via high-resolution time-of-flight spectroscopy despite their very low kinetic energy. The characteristic feature of their momentum spectrum, which emerges at the same position for different laser orientations, is derived and could be revealed experimentally with an energy resolution of the order of 1meV.
description: 5 pages, 5 figures
Post-Summit Results, Delegates’ Summit: Best Practice and Definitions – Algorithm and Algorithm Signification
Creators: name: Rückemann, Claus-Peter
name: Kovacheva, Zlatinka
name: Kharchenko, Oksana
name: Gersbeck-Schierholz, Birgit
name: Hülsmann, Friedrich
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2023
Subjects: subject: Best Practice and Definitions
subject: Delegates’ Summit
subject: Algorithm
subject: Signification
subject: Information Science
subject: Information Theory
subject: Sustainable Integration Strategies
subject: Knowledge Complements
subject: Conceptual Knowledge
subject: Epistemological Fundaments
subject: Logic
subject: Methodologies
subject: Methods
subject: Natural Sciences
subject: Prehistory
subject: Archaeology
subject: Theoretical Mathematics
subject: Applied Mathematics
subject: FOS: Mathematics
subject: Biology
subject: Individual Discipline and Application Views
subject: Coherent Multi-disciplinary Conceptual Knowledge
subject: Post-Summit Results
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Post-Summit Results, Delegates' Summit, September 11, 2023, The (12+1)th Symposium on Advanced Computation and Information in Natural and Applied Sciences (SACINAS), The 21th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM), September 11-17, 2023, Heraklion, Crete, Greece
Community Crisis Recovery and Renewal in the New Media Environment:  How Facebook Groups Initiated Crisis Responses After the Louisiana Flood of 2016
Creators: name: Krug, Sarah
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Crisis communication research is an important and growing field, especially given the increasing
frequency and scale of crises. Yet, most crisis communication research has been concerned with
organizational responses to crisis and issues of image repair. An alternative approach to crisis
emphasizes opportunities for growth and renewal after a crisis. Crisis communication as it
pertains to communities has not been adequately addressed. This study examined community
crisis responses and crisis renewal in the Facebook groups that formed after the 2016 flooding in
Louisiana. This study presents how these groups used social media to encourage and facilitate
crisis recovery and renewal. This study extends crisis communication research to a community-based
event and illustrates how crisis renewal may occur using social media technologies.
Gold, currencies and market efficiency
Creators: name: Kristoufek, Ladislav
name: Vosvrda, Miloslav
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Computational Finance (q-fin.CP)
subject: FOS: Economics and business

description: Gold and currency markets form a unique pair with specific interactions and dynamics. We focus on the efficiency ranking of gold markets with respect to the currency of purchase. By utilizing the Efficiency Index (EI) based on fractal dimension, approximate entropy and long-term memory on a wide portfolio of 142 gold price series for different currencies, we construct the efficiency ranking based on the extended EI methodology we provide. Rather unexpected results are uncovered as the gold prices in major currencies lay among the least efficient ones whereas very minor currencies are among the most efficient ones. We argue that such counterintuitive results can be partly attributed to a unique period of examination (2011-2014) characteristic by quantitative easing and rather unorthodox monetary policies together with the investigated illegal collusion of major foreign exchange market participants, as well as some other factors discussed in some detail.
description: 15 pages, 1 figure
People Come Together in a Room: Space, Intimacy, and the Narratology of Jacob's Room
Creators: name: Dixon, William Still
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In this essay, I argue that Virginia Woolf's novel Jacob’s Room is a narratological feat that successfully presents a distinct perspective on the limitations of intimacy and the ontological strictures that divide the self from full knowledge of other people. Woolf demonstrates this theme on the level of narrative construction by employing a narrator whose frequent refusal or inability to depict Jacob’s interior state emphasizes the impossibility of unfettered access to a given person; Woolf recursively demonstrates the theme within the world of the novel’s characters, wherein Jacob remains continuously inscrutable to the people he encounters. Architectural and topological space comprise the primary symbolic language through which Woolf makes her commentary on the ontological distances that separate people from one another in the novel: rooms, walls, windows, and doors become metaphors for the boundaries that both protect and deny the establishment of intimacy between people, and ultimately inhibit one’s full understanding of another person. Sexuality is a further iteration of this theme: as sexuality is typically a private, interior aspect of being, Jacob’s ambiguous sexual orientation emerges as another facet of his unknowability. Jacob is shown to be in continuous flux between adherence to heteronormative expectations and willful experimentation with fellow members of the all-male academy; the novel’s examination of Jacob’s amorphous orientation explores concepts of the public vs. the private—and the doubly-private world of closeted gay desire. I will focus on two women, Florinda and Sandra Wentworth Williams, whose relationships with Jacob most visibly highlight his struggle with stereotypical notions of masculinity and dominance within heterosexual relationships. In regards to Jacob’s experimentation with men, the aesthetics of classical Greece are a significant motif in the novel: the narrator uncovers its use as the medium through which male-male affection is communicated within the academy and disguised from outside view. The final movement finds Jacob traveling in Greece and becomes the novel’s thematic symphony; all concepts of space, ontology, intimacy, sexuality, and authorial access are brought to a head during Jacob’s inward contemplation abroad. And finally, Jacob’s sudden death shortly after his trip to Greece reifies his unknowability, as the text concludes with countless unanswered questions about his character—but this is the success of Jacob’s Room overall: the novel stands as a document of the unresolved, empty spaces that exist between author and character, character and reader, and all people from each other.
Embedding vertex corrections in GW self-energy: theory, implementation, and outlook
Creators: name: Weng, Guorong
name: Mallarapu, Rushil
name: Vlcek, Vojtech
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The vertex function ($Γ$) within the Green's function formalism encapsulates information about all higher-order electron-electron interaction beyond those mediated by density fluctuations. Herein, we present an efficient approach that embeds vertex corrections in the one-shot $GW$ correlation self-energy for isolated and periodic systems. The vertex-corrected self-energy is constructed through the proposed separation-propagation-recombination procedure: the electronic Hilbert space is separated into an active space and its orthogonal complement denoted as the "rest"; the active component is propagated by a space-specific effective Hamiltonian different from the rest. The vertex corrections are introduced by a rescaled time-dependent non-local exchange interaction. The direct $Γ$ correction to the self-energy is further updated by adjusting the rescaling factor in a self-consistent post-processing circle. Our embedding method is tested mainly on donor-acceptor charge-transfer systems. The embedded vertex effects consistently and significantly correct the quasiparticle energies of the gap-edge states. The fundamental gap is generally improved by 1-3 eV upon the one-shot $GW$ approximation. Furthermore, we provide an outlook for applications of (embedded) vertex corrections in calculations of extended solids.
Organocatalytic Fluoroalkylation of Polyaromatics
Creators: name: Wilhelmy, Bradley
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Commodity polymers, such as polystyrene and polycarbonate, are ubiquitous in society with 40.4Mt produced in 2015.1 Unfortunately, due to their mass production and longevity in the environment, which stems from their lack of reactivity, these polymers are often found as pollutants. Even when recycled, these materials are difficult to sort and separate leading to heterogenous products with decreased material properties and value. To circumvent this “downcycling” of plastic waste, my research team has studied a post-polymerization modification method to leverage the scale of commodity plastics while imparting value to recycled waste by chemically altering the polymer structure, thus incentivizing recycling. This type of recycling, where value is added to the plastic waste, is called “upcycling.” Previous work in our lab has developed a method that accesses electrophilic radicals to functionalize commodity polyaromatic materials via a photoredox cycle catalyzed by a Ruthenium catalyst. While efficient, metal catalysts leave the possibility of a contaminated product which is especially relevant in conductive polymers or biomedical applications. I investigated a method to circumvent the use of a metal catalyst in this reaction scheme by moving to organic catalysts. I began by synthesizing and studying several classes of organic photoredox catalysts to determine which imparted the highest amount of functionalization without adversely affecting the material properties. After this screening, 5,10 di(2-naphthyl) phenazine was determined to be the most efficient catalyst. Optimizing the reaction conditions led to 24.8 mol% trifluoromethylation, compared to 31.2% functionalization achieved under similar conditions with Ru(bpy)3Cl2. I then explored the modularity of our reaction by appending both longer perfluoroalkyl chains as well as other halodifluoromethyl groups which can undergo subsequent reactions such as hydrolysis. These modifications create both hydrophobic and hydrophilic materials, respectively, and demonstrate the range of properties that can be given to a simple polystyrene starting material. The effects of these modifications on physical properties such as contact angle and the glass transition temperature will also be measured in future work. Finally, the substrate scope of our method was expanded to other commodity polymers.
MPEC 2023-Q100 : 2023 QT3
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 QT3

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Suppression of ac Stark shift scattering rate due to non-Markovian behavior
Creators: name: Lone, Muzaffar Q.
name: Byrnes, Tim
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The ac Stark shift in the presence of spontaneous decay is typically considered to induce an effective dephasing with a scattering rate equal to $ Γ_s |Ω|^2/Δ^2 $, where $ Γ_s $ is the spontaneous decay rate, $ Ω$ is the laser transition coupling, and $ Δ$ is the detuning. We show that under realistic circumstances this dephasing rate may be strongly modifed due to non-Markovian behavior. The non-Markovian behavior arises due to an effective modification of the light-atom coupling in the presence of the ac Stark shift laser. An analytical formula for the non-Markovian ac Stark shift induced dephasing is derived. We obtain that for narrow laser linewidths the effective dephasing rate is suppressed by a factor of $ Q^2$, where $ Q $ is the quality factor of the laser.
description: Accepted in PRA Rapid Communications
The Association Between Quadriceps Activity and Loading Variables During Walking Gait in Individuals with ACL-R
Creators: name: Allen, Andrew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Quadriceps dysfunction following ACL-R may contribute to the development of OA due
to the inability of the muscles to attenuate impact forces. Both the timing and amplitude of
quadriceps activity early in the gait cycle appear to be important factors in decreasing loading
rates. Because gait is a repetitive and perpetual task, slight changes in loading rates may have
substantial effects on the articular cartilage of the knee joint. However, the influence of
quadriceps activation characteristics on impulsive loading during gait has yet to be evaluated in
individuals with ACL-R. Therefore, the purpose of this investigation was to evaluate associations
between the timing and amplitude of quadriceps EMG activity and impulsive loading during
walking gait.
Research Questions
• What is the relationship between the onset of quadriceps activity (EMG) relative to heel
strike and vertical ground reaction force (vGRF) loading rate and magnitude during the
first 50% of the stance phase during walking gait in individuals with ACL-R?
o H1: Earlier onset of quadriceps activity will be associated with lower vGRF
loading rate and peak vGRF.
• What is the relationship between the amplitude of quadriceps activity prior to heel strike
and vGRF loading rate and magnitude during the first 50% of the stance phase during
walking gait in individuals with ACL-R?
o H2: Greater quadriceps activity prior to heel strike will be associated with lower
vGRF loading rate and peak vGRF.
• What is the relationship between the amplitude of quadriceps activity during the load
acceptance phase of walking gait and vGRF loading rate and magnitude during the first
50% of the stance phase in individuals with ACL-R?
o H3: Greater quadriceps activity during the load acceptance phase will be
associated with lower vGRF loading rate and peak vGRF.
Single Frame Laser Diode Photoacoustic Imaging: Denoising and Reconstruction
Creators: name: Vousten, Vincent
name: Moradi, Hamid
name: Boctor, Emad M.
name: Salcudean, Septimiu E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A new development in photoacoustic (PA) imaging has been the use of compact, portable and low-cost laser diodes (LDs), but LD-based PA imaging suffers from low signal intensity recorded by the conventional transducers. A common method to improve signal strength is temporal averaging, which reduces frame rate and increases laser exposure to patients. To tackle this problem, we propose a deep learning method that will denoise the PA images before beamforming with a very few frames, even one. We also present a deep learning method to automatically reconstruct point sources from noisy pre-beamformed data. Finally, we employ a strategy of combined denoising and reconstruction, which can supplement the reconstruction algorithm for very low signal-to-noise ratio inputs.
Topology of Fermi Surfaces and anomaly inflows
Creators: name: Adem, Alejandro
name: Camarena, Omar Antolín
name: Semenoff, Gordon W.
name: Sheinbaum, Daniel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive a rigorous classification of topologically stable Fermi surfaces of non-interacting, discrete translation-invariant systems from electronic band theory, adiabatic evolution and their topological interpretations. For systems on an infinite crystal it is shown that there can only be topologically unstable Fermi surfaces. For systems on a half- space and with a gapped bulk, our derivation naturally yields a $\mathit{K}$-theory classification. Given the $d-1$-dimensional surface Brillouin zone $\mathrm{X}_{s}$ of a $d$-dimensional half-space, our result implies that different classes of globally stable Fermi surfaces belong in $\mathit{K^{-1}}\mathrm{(X_{s})}$ for systems with only discrete translation-invariance. This result has a chiral anomaly inflow interpretation, as it reduces to the spectral flow for $d = 2$. Through equivariant homotopy methods we extend these results for symmetry classes $AI,\,AII,\, C$ and $D$ and discuss their corresponding anomaly inflow interpretation.
description: Removed Born-von Karman boundary conditions for $\mathbb{R}^{d}$ and $\mathbb{R}^{d-1}\times [0,\infty)$ and includes the 'weak' topological phase found by Kitaev for $\Xi^2 = I, d= 2$
Additional information from Pore topology analysis in porous molecular systems
Creators: name: Anipa, Verity
name: Tarzia, Andrew
name: Jelfs, Kim E.
name: Alexandrov, Eugeny V.
name: Addicoat, Matthew A.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Crystallography
subject: 30399 Macromolecular and Materials Chemistry not elsewhere classified
subject: FOS: Chemical sciences
subject: 30799 Theoretical and Computational Chemistry not elsewhere classified

description: Details of database generation and additional figures
How Media Covered Police Shootings During and After Ferguson: Framing Analysis of Officer-Involved Shootings In 2014 and 2016
Creators: name: Ketron, Grace
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: This framing analysis determined how three national media platforms portrayed two high profile police-involved shootings of unarmed individuals from 2014 to 2016. The pivotal Ferguson shooting occurred in 2014, so cases during and after Ferguson were evaluated. Specifically, this study asked, how did three leading national news sources (The New York Times, Fox News, and the Associated Press) frame the issue of police-involved shootings from 2014 to 2016? The significance of how media explain issues and events cannot be overstated; how reporters present stories influences how audiences view public issues, including police-involved shootings, and how they respond to them. This study hopes to contribute to the current national dialogue surrounding the role of race in officer-involved shootings because framing theory suggests that news frames affect how people understand race’s role in American police departments and society.
Delayed Judgments of Learning Are Associated With Activation of Information From Past Experiences: A Neurobiological Examination
Creators: name: Kelley, Timothy
name: Davis, Tyler
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Neuroscience
subject: Life Sciences
subject: Cognitive Psychology
subject: Neuroscience and Neurobiology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Research in metacognition suggests that the information people use to predict their memory performance can vary depending on the contexts in which they make their predictions. For example, if people judge their memories after a delay from initial encoding, they may be more likely to use retrieved information about the past encoding experience than if they judged memories immediately after encoding. Although this seems intuitive, past behavioral and neuroimaging work has not tested whether delayed memory judgments are more strongly coupled with information about past experiences than immediate memory judgments. We scanned participants using functional MRI while they encoded paired associates and made predictions about their future memory performance either immediately after encoding or after a delay. Consistent with the hypothesis that people use retrieved information about past experiences to inform delayed memory judgments, our results showed that activation patterns associated with past experience were more strongly coupled with delayed memory judgments than with immediate ones.
Partners' Responses to Obsessive-Compulsive Disorder
Creators: name: Roddy, McKenzie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Obsessive-Compulsive Disorder (OCD) is an anxiety disorder characterized by (a) unpleasant,
intrusive thoughts or images, referred to as obsessions, and (b) ritualized actions or compulsions,
which seek to decrease the anxiety caused by the obsessions. Although OCD is an individual
disorder, it affects the lives of romantic partners. This study examined partners’ behaviors in
response to patients’ OCD prior to and after a couple-based treatment intervention for OCD. The
extent to which partner behaviors in response to OCD are related to treatment outcome is of
particular interest. High levels of Accommodation at pretest were hypothesized to predict less
improvement over the course of treatment. Sixteen couples with one partner meeting diagnostic
criteria for OCD enrolled in the study and were assessed at baseline. An observational coding
system was adapted to measure partner behaviors during a videotaped conversation, including
Change Promotion, Acceptance/ Validation, and Accommodation. Higher levels of partner
Accommodation at pretest were indicative of worse treatment outcomes, and an interaction effect
between high levels of Change Promotion and high levels of Acceptance/ Validation were
associated with better treatment outcome. Together, the main and interaction effects of partner
behaviors explained up to 49% of the variance in OCD treatment outcome and suggest that
continued accommodation across treatment resulted in worse outcomes for the patients. Findings
also suggest that the optimal amount of empathy shown by partners may vary as a function of
patient motivation to change. Limitations are discussed. These results emphasize the importance
of the interpersonal context of OCD and possible directions for future clinical work.
Turtles, Task Ninjas, and Time-Wasters
Creators: name: Vangsness, Lisa
name: Young, Michael
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: discounting
subject: Latent Profile Analysis
subject: precrastination
subject: procrastination
subject: task completion
subject: task valuation

description: Standard approaches for identifying task completion strategies, such as precrastination and procrastination, reduce behavior to single markers that oversimplify the process of task completion. To illustrate this point, we consider three task completion strategies and introduce a new method to identify their use. This approach was tested using a historical dataset (N = 8,655) of the available electronic records of research participation at our institution. The approach out-performed standard diagnostic approaches and yielded an interesting finding: several strategies were associated with negative outcomes. Specifically, procrastinators and precrastinators both struggled to finish tasks on time. Together, these findings underscore the importance of using holistic approaches to determine the relationship between task characteristics, individual differences, and task completion.
Supporting Information from Green synthesis of Piper chaudocanum stem extract mediated silver nanoparticles for colorimetric detection of Hg2+ ions and antibacterial activity
Creators: name: Tam, Khieu Thi
name: Thuy, Nguyen Thi
name: Ngan, Nguyen Thi Kim
name: Khai, Nguyen Manh
name: Van Thanh, Dang
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Environmental Chemistry
subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: A green synthetic approach to synthesize silver nanoparticles (AgNPs) using the stem extract of Piper chaudocanum for highly sensitive colorimetric detection of Hg2+ with a low limit of detection of 23 nM and easy colorimetric read-out has been reported. In addition, the biosynthesized AgNPs demonstrated efficient antibacterial activity against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. The morphology and structure of the as-synthesized AgNPs were examined using SEM, TEM, EDX, XRD and FT-IR analyses. The XRD and TEM results confirm the formation of AgNPs with an average particle size of 8–12 nm. The TLC, CC and HPLC revealed that four main compounds, pentacosanoic acid (1), piperine (2), β-sitosterol (3), and campesterol glucoside (4), isolated from P. chaudocanum extract act as reducing and stabilizing agents for AgNP formation, and piperine plays a vital role in green synthesis. The chemical structures of these compounds were determined by ESI MS, FTIR, and 1D, 2D NMR spectroscopic data analysis. This approach is an efficient, green, cost-effective, eco-friendly and promising technique for synthesizing AgNPs with applications in the colorimetric detection of Hg2+ and antibacterial activity.
Superradiance initiated inside the ergoregion
Creators: name: Eskin, Gregory
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the stationary metrics that have both the black hole and the ergoregion. The class of such metric contains, in particular, the Kerr metric. We study the Cauchy problem with highly oscillatory initial data supported in a neighborhood inside the ergoregion with some initial energy $E_0$. We prove that when the time variable $x_0$ increases this solution splits into two parts: one with the negative energy $-E_1$ ending at the event horizon in a finite time, and the second part, with the energy $E_2=E_0+E_1>E_0$, escaping, under some conditions, to the infinity when $x_0\rightarrow +\infty$. Thus we get the superradiance phenomenon. In the case of the Kerr metric the superradiance phenomenon is "short-lived", since both the solutions with positive and negative energies cross the outer event horizon in a finite time (modulo $O(\frac{1}{k})$) where $k$ is a large parameter. We show that these solutions end on the singularity ring in a finite time. We study also the case of naked singularity.
description: 35 pages, 2 figures
EUTOPIA Citizen Science Starter Kit - Tool 15: Initial motivations
Creators: name: Veeckman, Carina
name: Van den Bogaert, Lawrence
name: Keersmaekers, Floor
name: Livémont, Eline
Publisher: name: Zenodo
Year: 2023
Subjects: citizen science

description: This template is part of Module 4 “Getting started with citizen science” (phase 2 – develop) of the EUTOPIA Citizen Science Starter Kit. It will help you to consider potential motivations of citizens to initiate participation in your activities.
Developing an index to estimate the association between the Food Environment and CVD mortality rates
Creators: name: Ly, Christopher
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: The food environment has been shown to influence dietary patterns, which ultimately affects nutrition-related diseases such as diabetes, obesity, and cardiovascular disease (CVD). Measures of food accessibility and socioeconomics were combined to develop the Food Environment Index (FEI), characterizing all U.S. counties between 2008-2016. Multi-level regression models showed that this index is significantly negatively associated with CVD death rates across the two time periods studied (2008-2010 and 2013-2016). The FEI may be a useful proxy for distinguishing differences in the food environment to inform future interventions.
Manual de comunicación y vida saludable
Creators: name: Paredes, Lorena
name: Obando, Isabel
name: Leal, Marlys
name: Avila, Yennifer
name: Alvarez, Cristian
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 420603
subject: Health promotion

description: Manual de comunicacion y vida saludable
The Politics of Roma Expulsions in France and the European Union
Creators: name: Smith, Andrew J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: In the United States, the word “Gypsy” – often used as an exogenous term for the Roma – may conjure images of swarthy, colorfully clothed violin players from a far-removed time. In Europe, however, “Gypsy” is often associated with criminality, untrustworthiness, and laziness, as the Roma are often found on the sides of streets begging for coins and using their children to gain pity. These associations allow for the Roma to be seen as problems, of needing to be dealt with, and France has responded by expelling them en masse. The guiding normative principle I take in this thesis is that government power should always be questioned through a process of examining the legitimacy of the government’s actions. When the French government expels Roma en masse, it believes its actions to be legitimate based on knowledge of the area in which it acts, in this case, the Roma. Examining the French government’s presuppositions of the Roma as well as EU law reveals that the French government’s expulsions are based on illegitimate rationale. In other words, the French government’s actions are built on flawed presuppositions that form the rationale of its actions. Thus, a critical examination of France’s actions is necessary so as to not to take the assumptions and presuppositions about the Roma as undeniable truth. For example, instead of assuming the Roma’s lifestyle is too different from French society, it is necessary to examine the assumptions about the Roma lifestyle that appear to make it incompatible. These presuppositions are the foundation for the knowledge that the government uses to legitimize its actions; therefore, it is important to vigorously examine them.
The formulation and delivery of a novel peptide drug via the buccal route by an orally disintegrating tablet
Creators: name: Johnston, Thomas A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: There is a growing interest in the delivery of peptide drugs by non-intravenous routes. This study attempted to determine the feasibility of delivery of a peptide drug via the buccal route with an orally disintegrating tablet. To accomplish this we determined an acceptable proportion of ingredients to make a tablet that would meet the FDA guidelines for orally disintegrating tablets, be palatable to a potential patient, and deliver the drug to the patient. Our study showed a 3/2/1 mixture of gelatin/glycine/sorbitol when combined with the active pharmaceutical delivered an acceptable orally disintegrating tablet formulation which passed the FDA disintegration test. The stability of the drug in this formulation was also tested over three months with <5% of the initial drug having degraded. In summary, we were able to formulate an orally disintegrating tablet for a peptide drug that passed the FDA criteria for disintegration and was stable over a three-month time period.
Structure of Charge Density Waves in La$_{1.875}$Ba$_{0.125}$CuO$_4$
Creators: name: Sears, J.
name: Shen, Y.
name: Krogstad, M. J.
name: Miao, H.
name: Bozin, E. S.
name: Robinson, I. K.
name: Gu, G. D.
name: Osborn, R.
name: Rosenkranz, S.
name: Tranquada, J. M.
name: Dean, M. P. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Although charge-density wave (CDW) correlations exist in several families of cuprate supercon-ductors, they exhibit substantial variation in CDW wavevector and correlation length, indicating a key role for CDW-lattice interactions. We investigated this interaction in La$_{1.875}$Ba$_{0.125}$CuO$_4$ using single crystal x-ray diffraction to collect a large number of CDW peak intensities, and determined the Cu and La/Ba atomic distortions induced by the formation of CDW order. Within the CuO$_2$ planes, the distortions involve a periodic modulation of the Cu-Cu spacing along the direction of the ordering wave vector. The charge ordering within the copper-oxygen layer induces an out-of-plane breathing modulation of the surrounding lanthanum layers, which leads to a related distortion on the adjacent copper-oxygen layer. Our result implies that the CDW-related structural distortions do not remain confined to a single layer but rather propagate an appreciable distance through the crystal. This leads to overlapping structural modulations, in which CuO$_2$ planes exhibit distortions arising from the orthogonal CDWs in adjacent layers as well as distortions from the CDW within the layer itself. We attribute this striking effect to the weak c-axis charge screening in cuprates and suggest this effect could help couple the CDW between adjacent planes in the crystal.
description: 9 pages; Accepted in Phys. Rev. B
The Effects of Sprint Interval Training on Performance in Team Sport Athletes: A Systematic Review
Creators: name: Grassick, Shaun
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Sports Sciences
subject: Physiology
subject: FOS: Biological sciences
subject: Exercise Physiology
subject: Medicine and Health Sciences
subject: Life Sciences
subject: Sprint interval training, SIT, HIIT, HIT, High intensity interval training, High intensity training,

description: A systematic literature review
Extracting State Transition Models from i* Models
Creators: name: Deb, Novarun
name: Chaki, Nabendu
name: Ghose, Aditya
Publisher: name: arXiv
Year: 2015
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: i* models are inherently sequence agnostic. There is an immediate need to bridge the gap between such a sequence agnostic model and an industry implemented process modelling standard like Business Process Modelling Notation (BPMN). This work is an attempt to build State Transition Models from i* models. In this paper, we first spell out the Naive Algorithm formally, which is on the lines of Formal Tropos. We demonstrate how the growth of the State Transition Model Space can be mapped to the problem of finding the number of possible paths between the Least Upper Bound (LUB) and the Greatest Lower Bound (GLB) of a k-dimensional hypercube Lattice structure. We formally present the mathematics for doing a quantitative analysis of the space growth. The Naive Algorithm has its main drawback in the hyperexponential explosion caused in the State Transition Model space. This is identified and the Semantic Implosion Algorithm is proposed which exploits the temporal information embedded within the i* model of an enterprise to reduce the rate of growth of the State Transition Model space. A comparative quantitative analysis between the two approaches concludes the superiority of the Semantic Implosion Algorithm.
description: 41 pages, 13 figures, 5 tables, submitted to the Journal of Systems and Software, pending resubmission
Regime Type and Funding Armed Proxies: A Case Study of Afghanistan Through the Centuries
Creators: name: Palmer, Graham O.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Weak states are and have always been inviting targets for the attention of competing great powers, especially when the weak state occupies a geopolitically significant position. Whether this significance is derived from access to trade routes, control over material resources, or other factors of strategic importance to the competing powers, the opportunity to bolster its position by exerting influence over a weak state is tempting for any power that has the means to do so. While competition over weak states has been a constant feature of the international system for centuries, nations have diversified their strategies for exerting influence beyond their own borders. Outright military force is still used, but states often rely on other means. One of the most popular and potentially most destabilizing strategies that states utilize is funding armed groups within the target state. These militant groups are often used as proxies, allowing a strong state to project influence in a weak state without actually going to war. This thesis will attempt to investigate the factors that impact the states’ choice of strategy in competition for influence within weak states. Specifically, it will test whether regime type influences the likelihood that a strong state will sponsor armed groups in a weak state where it is trying to exert influence.