cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Youth Leadership in a Physical Activity-Based Positive Youth Development Program for At-Risk Youth
Creators: name: Shaikh, Majidullah
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2017
Subjects: physical activity
youth
leadership
development
mentor
trust
basic needs
support

description: Physical activity-based positive youth development (PA-PYD) programs can serve to empower and alleviate barriers to development for at-risk youth. Youth leaders may play an important role in these programs to foster the development of their younger peers, while mutually benefiting from the program as they foster and apply skills such as leadership, communication, and self-direction. Currently, there is a gap in literature as very few studies have examined youth leadership within PA-PYD programming. Thus, the purpose of the current study was to explore the perspectives and experiences of youth leaders and their fellow program participants in relation to youth leadership within the context of a PA-PYD program for at-risk youth. Data were gathered from 16 youth leaders (Mage= 13.37, SD = 1.36) and 15 program participants (Mage= 10.53, SD = 1.12) across four different program locations, using semi-structured, one-on-one interviews. This thesis is composed of two articles. The first article used a deductive-inductive thematic analysis to better understand the experiences that youth leaders had in the program. Three themes were identified: (a) building youth leaders is a process, (b) mentorship is perceived as critical for one’s leadership development, (c) trust is important for enhancing youth leader engagement. The second article also used a deductive-inductive thematic analysis to examine how youth leaders perceive the influence they have on younger peers who participate in the physical activity-based youth development program, as well as how these program participants perceive the role and impact of the youth leaders. Five themes emerged from the analysis, which were: (a) learning and building skills, (b) receiving support, (c) enjoyment, (d) relatability, and (e) lack of maturity. This research contributes to current gaps in the literature on youth leadership within physical activity-based youth programming and provides practical recommendations to improve such programming.
USE OF FERTILISERS IN ENGLAND AND WALES, 1978, Rothamsted Experimental Station Report for 1978 Part 2
Creators: name: B. M. CHURCH
Publisher: name: Lawes Agricultural Trust
Year: 1979
Subjects: subject: rothamsted research

description: Scanned PDF of USE OF FERTILISERS IN ENGLAND AND WALES, 1978, part of Rothamsted Experimental Station Report for 1978 Part 2
Global research overview of Alice in Wonderland syndrome (AIWS): a bibliometric study
Creators: name: Hossain, Md Mahbub
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Life Sciences
subject: Social and Behavioral Sciences
subject: AIWS
subject: Alice in Wonderland syndrome
subject: Bibliometrics
subject: Neurology
subject: Pediatric Neurology
subject: Research Mapping

description: This study aims to evaluate the bibliometric characteristics including the publication trends, key research domains, top contributing journals, institutions, and countries associated with Alice in Wonderland syndrome (AIWS)-related research.
ESR 2 Detection and Characterization of microplastic in food and beverages using Photolumniscence Spectroscopy
Creators: name: Iqrar, Syed
name: Traczykowski, Lauren
name: Stone, Isobel
name: Southan, Luke
name: Otter, James
name: Reece, David
name: Luettjohann, Stephan
name: Hotten, Pete
name: Ferguson, Jennifer
name: Bordos, Gabor
name: Grigorov, Ivo
name: Hill, Daniel
name: Woods, Karola
name: Liu, Yuanli
name: Pant, Udit
name: Shiwani, Shiwani
name: Tanrıverdi, Selim
name: Andrade, Natalia
name: Choobbari, Mehrdad
name: Costa, Martim
name: Maurizi, Luca
name: Boeke, Julia
name: Vitali, Clementina
name: Can, Ali
name: Bibi, Aisha
name: Valls-Conesa, Jordi
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Engineering
subject: open science
subject: OSF
subject: VRE

description: My project aims to develop a portable and low-cost spectrometer based on the photoluminescence technique for the detection and characterization of microplastics in food and beverages. The worldwide increasing number of plastic production is leading to the potential impact of micro/nano plastic on aquatic and human life. To address this issue, there is an essential need for standardized commercial devices for the early detection of microplastics in various environmental matrices. Based on the need of the hour, I have vision to commercialize a portable and low-cost spectroscopic device in the coming 10 years that will be used in everyday life as well as in the food and beverage processing industry. The portability and accessibility of this device to public consumers would possibly make a breakthrough in hands-on detection and identification of microplastic in foods and drinks. The device would be able to handle small volumes of up to 5mL with less laborious sample preparation. Portability of the device will be achieved by the combination of a microfluidic and fluorescence spectroscopic systems. Furthermore, machine learning and digitization of the device would help to provide fast and hand-held smartphone-based identification of microplastics.
The Illusion of the Prima Pratica and Seconda Pratica in the Music of Willaert and Rore
Creators: name: Atkins, Karen
Publisher: name: University of North Carolina at Chapel Hill
Year: 2012

description: In his famous Dichiaratione defending Claudio Monteverdi from Giovanni Maria Artusi, Giulio Cesare Monteverdi listed Adrian Willaert as the composer that typified the prima pratica and Cipriano de Rore as the leader of the the seconda pratica. Giulio Cesare Monteverdi's construction of the prima and seconda pratica and the composers who supposedly typify it is a strategy in his debate with Artusi, but the accuracy of his assessment has been taken for granted by musicologists. I uncouple the analysis of Willaert and Rore's music from the writings of Giulio Cesare Monteverdi. The end results of this analysis show Willaert and Rore to be clear contemporaries in style, with Willaert more progressive in his text setting than his prima pratica association indicates, and Rore frequently following the older eight-mode system that informed the publication of his first books of madrigals.
The spectrum of anomalous magnetohydrodynamics
Creators: name: Giovannini, Massimo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The equations of anomalous magnetohydrodynamics describe an Abelian plasma where conduction and chiral currents are simultaneously present and constrained by the second law of thermodynamics. At high frequencies the magnetic currents play the leading role and the spectrum is dominated by two-fluid effects. The system behaves instead as a single fluid in the low-frequency regime where the vortical currents induce potentially large hypermagnetic fields. After deriving the physical solutions of the generalized Appleton-Hartree equation, the corresponding dispersion relations are scrutinized and compared with the results valid for cold plasmas. Hypermagnetic knots and fluid vortices can be concurrently present at very low frequencies and suggest a qualitatively different dynamics of the hydromagnetic nonlinearities.
description: 26 pages, no figures
Cytotoxicity of intracanal medicaments- A systematic review
Creators: name: Rahul, Morankar
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Life Sciences
subject: Education

description: Intracanal medicaments used for disinfection of root canal system plays a crucial in the success of regenerative endodontic procedures (REPs). The purpose of this systematic review will be to evaluate the cytotoxicity of intracanal medicaments used for root canal disinfection and assess their effect on the proliferation and differentiation potential of Stem Cells from Apical Papilla (SCAPs).
Quantum-inspired optimization for wavelength assignment
Creators: name: Boev, Aleksey S.
name: Usmanov, Sergey R.
name: Semenov, Alexander M.
name: Ushakova, Maria M.
name: Salahov, Gleb V.
name: Mastiukova, Alena S.
name: Kiktenko, Evgeniy O.
name: Fedorov, Aleksey K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Problems related to wavelength assignment (WA) in optical communications networks involve allocating transmission wavelengths for known transmission paths between nodes that minimize a certain objective function, for example, the total number of wavelengths. Playing a central role in modern telecommunications, this problem belongs to NP-complete class for a general case, so that obtaining optimal solutions for industry relevant cases is exponentially hard. In this work, we propose and develop a quantum-inspired algorithm for solving the wavelength assignment problem. We propose an advanced embedding procedure for this problem into the quadratic unconstrained binary optimization (QUBO) form having an improvement in the number of iterations with price-to-pay being a slight increase in the number of variables ("spins"). Then we compare a quantum-inspired technique for solving the corresponding QUBO form against classical heuristic and industrial combinatorial solvers. The obtained numerical results indicate on an advantage of the quantum-inspired approach in a substantial number of test cases against the industrial combinatorial solver that works in the standard setting. Our results pave the way to the use of quantum-inspired algorithms for practical problems in telecommunications and open a perspective for the further analysis of the employ of quantum computing devices.
description: 10+4 pages, 2 figures, 2+4 tables
Aldo Moro's Rebirth in Marco Bellocchio's Buongiorno, notte
Creators: name: Sguerri, Michael
Publisher: name: University of North Carolina at Chapel Hill
Year: 2010

description: This study examines the different representations of Aldo Moro and his abduction in the movies Il caso Moro (1986) by Giuseppe Ferrara, Piazza delle Cinque Lune (2003) by Renzo Martinelli, and Buongiorno, notte (2003) by Marco Bellocchio. According to certain critics, Marco Bellocchio's movie presents a resurrection of Aldo Moro's character. This examination looks at how a new conception of the character of Aldo Moro is born and how it undergoes a transformation in Marco Bellocchio's movie. This will be achieved by comparing Buongiorno, notte to Giuseppe Ferrara and Renzo Martinelli's films. The comparison between these movies will show how Marco Bellocchio's movie contains certain Christological elements that allow for a new representation of Aldo Moro's character.
A Deep Double Ritz Method (D$^2$RM) for solving Partial Differential Equations using Neural Networks
Creators: name: Uriarte, Carlos
name: Pardo, David
name: Muga, Ignacio
name: Muñoz-Matute, Judit
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Residual minimization is a widely used technique for solving Partial Differential Equations in variational form. It minimizes the dual norm of the residual, which naturally yields a saddle-point (min-max) problem over the so-called trial and test spaces. In the context of neural networks, we can address this min-max approach by employing one network to seek the trial minimum, while another network seeks the test maximizers. However, the resulting method is numerically unstable as we approach the trial solution. To overcome this, we reformulate the residual minimization as an equivalent minimization of a Ritz functional fed by optimal test functions computed from another Ritz functional minimization. We call the resulting scheme the Deep Double Ritz Method (D$^2$RM), which combines two neural networks for approximating trial functions and optimal test functions along a nested double Ritz minimization strategy. Numerical results on different diffusion and convection problems support the robustness of our method, up to the approximation properties of the networks and the training capacity of the optimizers.
description: 28 pages
The Use of Theories, Frameworks or Models in Knowledge Translation Studies in Healthcare Settings in China: A Scoping Review Protocol
Creators: name: Zhao, Junqiang
name: Li, Xuejing
name: Yan, Lijiao
name: Yu, Yamei
name: Hu, Jiale
name: Li, Shelly-Anne
name: Chen, Wenjun
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: China
subject: healthcare
subject: implementation
subject: knowledge translation
subject: model
subject: nursing
subject: scoping review
subject: theory

description: The aim of this scoping review is to identify which theories, frameworks, and models (TFMs) had been used for KT in healthcare settings in China, and how these TFMs were used.
Methodological proposal to identify the nationality of Twitter users through Random-Forests
Creators: name: Quijano, Damián
name: Gil-Herrera, Richard
Publisher: name: arXiv
Year: 2022
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences
subject: J.4

description: We disclose a methodology to determine the participants in discussions and their contributions in social networks with a local relationship (e.g., nationality), providing certain levels of trust and efficiency in the process. The dynamic is a challenge that has demanded studies and some approximations to recent solutions. The study addressed the problem of identifying the nationality of users in the Twitter social network before an opinion request (of a political nature and social participation). The employed methodology classifies, via machine learning, the Twitter users' nationality to carry out opinion studies in three Central American countries. The Random Forests algorithm is used to generate classification models with small training samples, using exclusively numerical characteristics based on the number of times that different interactions among users occur. When averaging the proportions achieved by inferences of the ratio of nationals of each country, in the initial data, an average of 77.40% was calculated, compared to 91.60% averaged after applying the automatic classification model, an average increase of 14.20%. In conclusion, it can be seen that the suggested set of method provides a reasonable approach and efficiency in the face of opinion problems.
description: 31 pages, 10 figures, 4 tables
Testing quantum transport without decoherence
Creators: name: Flores-Olmedo, E.
name: Martínez-Argüello, A. M.
name: Martínez-Mares, M.
name: Báez, G.
name: Franco-Villafañe, J. A.
name: Méndez-Sánchez, R. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The coherent electronic transport phenomena through quantum devices is difficult to observe due to thermal smearing and dephasing, the latter induced by inelastic scattering by phonons or impurities. In other wave systems, the temperature and dephasing may not destroy the coherence and can then be used to observe the underlying wave behaviour of the coherent quantum phenomena. Here, we observe coherent transmission of mechanical waves through a two-dimensional elastic Sinai billiard with two waveguides. The flexural-wave transmission performed by non-contact means, shows the transmission quantization when a new mode becomes open. In contrast with the quantum counterpart, these measurements agree with the theoretical predictions of the simplest model at zero temperature highlighting the universal character of the transmission fluctuations.
description: This paper has 4 pages and 4, which show consistent Electronic transport phenomena
The relationship between physical activity levels and selected physiological and psychological parameters in women with breast cancer post treatment
Creators: name: Webster, Sheila Marie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Cancer treatments cause numerous side effects that can last years post-treatment. Fatigue is the most common side-effect and can lead to a reduction in patients’ functionality and overall quality of life. The purpose of this study was to evaluate physical activity levels (IPAQ), selected physiological and psychological parameters on breast cancer survivors prior to staring an exercise/recreation therapy program. A secondary purpose explored relationships between the IPAQ and all psychological and physiological parameters evaluated. Sixteen female breast cancer patients participated in the study. Results found a significant positive relationship between physical activity levels and overall fatigue (P=0.039). A multiple regression analyses showed that depression accounted for the greatest amount of variance in both fatigue and quality of life (P=0.012 and 0.000). Knowing the multidimensional impact of cancer on overall fatigue and quality of life, the management of depression becomes critical in improving the patient’s well being and overall health.
HEBECO Weight and BMI longitudinal protocol pre-registration
Creators: name: Herbec, Aleksandra
name: Dicken, Samuel
name: Shahab, Lion
name: Kale, Dimitra
name: Mitchell, John
name: Beard, Emma
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Social and Behavioral Sciences
subject: BMI
subject: COVID-19
subject: Health behaviours
subject: Survey
subject: Weight

description: Pre-registration (before conducting the data analysis) of the data analysis protocol (V7.0 07.04.2021) for the planned manuscript entitled: Impact of COVID-19 pandemic on weight and BMI among UK adults: a longitudinal analysis of data from the HEBECO study.
Self-organized magnetic particles to tune the mechanical behaviour of a granular system
Creators: name: Cox, Meredith
name: Wang, Dong
name: Barés, Jonathan
name: Behringer, Robert P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Above a certain density a granular material jams. This property can be controlled by either tuning a global property, such as the packing fraction or by applying shear strain, or at the micro-scale by tuning grain shape, inter-particle friction or externally controlled organization. Here, we introduce a novel way to change a local granular property by adding a weak anisotropic magnetic interaction between particles. We measure the evolution of the pressure, $P$, and coordination number, $Z$, for a packing of 2D photo-elastic disks, subject to uniaxial compression. Some of the particles have embedded cuboidal magnets. The strength of the magnetic interactions between particles are too weak to have a strong direct effect on $P$ or $Z$ when the system is jammed. However, the magnetic interactions play an important role in the evolution of latent force networks when systems containing a large enough fraction of the particles with magnets are driven through unjammed states. In this case, a statistically stable network of magnetic chains self-organizes and overlaps with force chains, strengthening the granular medium. We believe this property can be used to reversibly control mechanical properties of granular materials.
description: 5 pages, 4 figures
Development within Multiple Modernities: Place-based Oppositions to Development Projects along the Ganges River and their Significance
Creators: name: Drew, Georgina
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: Building on prior scholarship, this paper examines social responses to development projects along the northern part of the Ganges River and argues that they can be seen as a defense of place, embodied by nature, along a river that is culturally, religiously, and ecologically significant. By studying two development projects along the northern part of the Ganges in the colonial and the post-colonial eras, this discussion attempts to understand the ways that modernity, via colonialism and capitalism, transformed human relationships with the river. By focusing on the opposition to canal irrigation and the construction of the Tehri dam, I suggest that the inhabitants near the river were not against development as long as they perceived they could maintain their varied connections with the river. The two cases indicate, therefore, possibilities for the inclusion of multiple modernities and other ways of being and acting with respect to natural entities.
Towards defining a standardised methodology in axial magnetic resonance imaging with anatomical cross-reference: A scoping review of lateral hip musculature (A protocol)
Creators: name: Machotka, Zuzana
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Anatomy
subject: Medicine and Health Sciences
subject: Musculoskeletal System

description: This scoping review aims to collate and synthesise current MRI protocols to provide a standardised procedure for measuring lateral hip muscle size and composition.
Design and test of optical payload for polarization encoded QKD for Nanosatellites
Creators: name: Sagar, Jaya
name: Hastings, Elliott
name: Zhang, Piede
name: Stefko, Milan
name: Lowndes, David
name: Oi, Daniel
name: Rarity, John
name: Joshi, Siddarth K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Satellite based Quantum Key Distribution (QKD) in Low Earth Orbit (LEO) is currently the only viable technology to span thousands of kilometres. Since the typical overhead pass of a satellite lasts for a few minutes, it is crucial to increase the the signal rate to maximise the secret key length. For the QUARC CubeSat mission due to be launched within two years, we are designing a dual wavelength, weak-coherent-pulse decoy-state Bennett-Brassard '84 (WCP DS BB84) QKD source. The optical payload is designed in a $12{\times}9{\times}5 cm^3$ bespoke aluminium casing. The Discrete Variable QKD Source consists of two symmetric sources operating at 785 nm and 808 nm. The laser diodes are fixed to produce Horizontal,Vertical, Diagonal, and Anti-diagonal (H,V,D,A) polarisation respectively, which are combined and attenuated to a mean photon number of 0.3 and 0.5 photons/pulse. We ensure that the source is secure against most side channel attacks by spatially mode filtering the output beam and characterising their spectral and temporal characterstics. The extinction ratio of the source contributes to the intrinsic Qubit Error Rate(QBER) with $0.817 \pm 0.001\%$. This source operates at 200MHz, which is enough to provide secure key rates of a few kilo bits per second despite 40 dB of estimated loss in the free space channel
Ontology-based Secure Retrieval of Semantically Significant Visual Contents
Creators: name: Muhammad, Khan
name: Mehmood, Irfan
name: Lee, Mi Young
name: Ji, Su Mi
name: Baik, Sung Wook
Publisher: name: arXiv
Year: 2015
Subjects: subject: Multimedia (cs.MM)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Image classification is an enthusiastic research field where large amount of image data is classified into various classes based on their visual contents. Researchers have presented various low-level features-based techniques for classifying images into different categories. However, efficient and effective classification and retrieval is still a challenging problem due to complex nature of visual contents. In addition, the traditional information retrieval techniques are vulnerable to security risks, making it easy for attackers to retrieve personal visual contents such as patients records and law enforcement agencies databases. Therefore, we propose a novel ontology-based framework using image steganography for secure image classification and information retrieval. The proposed framework uses domain-specific ontology for mapping the low-level image features to high-level concepts of ontologies which consequently results in efficient classification. Furthermore, the proposed method utilizes image steganography for hiding the image semantics as a secret message inside them, making the information retrieval process secure from third parties. The proposed framework minimizes the computational complexity of traditional techniques, increasing its suitability for secure and real-time visual contents retrieval from personalized image databases. Experimental results confirm the efficiency, effectiveness, and security of the proposed framework as compared with other state-of-the-art systems.
description: A short paper of 11 pages for secure visual contents retrieval.The original version can be accessed at this link: http://www.kingpc.or.kr/inc_html/index.html
The largest $H$-eigenvalue and spectral radius of Laplacian tensor of non-odd-bipartite generalized power hypergraphs
Creators: name: Fan, Yi-Zheng
name: Khan, Murad-ul-Islam
name: Tan, Ying-Ying
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Let $G$ be a simple graph or hypergraph, and let $A(G),L(G),Q(G)$ be the adjacency, Laplacian and signless Laplacian tensors of $G$ respectively. The largest $H$-eigenvalues (resp., the spectral radii) of $L(G),Q(G)$ are denoted respectively by $λ_{\max}^L(G), λ_{\max}^Q(G)$ (resp., $ρ^L(G), ρ^Q(G)$). For a connected non-bipartite simple graph $G$, $λ_{\max}^L(G)=ρ^L(G) < ρ^Q(G)$. But this does not hold for non-odd-bipartite hypergraphs. We will investigate this problem by considering a class of generalized power hypergraphs $G^{k,\frac{k}{2}}$, which are constructed from simple connected graphs $G$ by blowing up each vertex of $G$ into a $\frac{k}{2}$-set and preserving the adjacency of vertices. Suppose that $G$ is non-bipartite, or equivalently $G^{k,\frac{k}{2}}$ is non-odd-bipartite. We get the following spectral properties: (1) $ρ^L(G^{k,{k \over 2}}) =ρ^Q(G^{k,{k \over 2}})$ if and only if $k$ is a multiple of $4$; in this case $λ_{\max}^L(G^{k,\frac{k}{2}})
WE WERE HERE: GRADUATION STREET PAINTING IN LANDSCAPES OF MEMORY AND PLACE IN WINCHESTER, VIRGINIA
Creators: name: Riley, Danielle
Publisher: name: University of North Carolina at Chapel Hill Graduate School
Year: 2015
Subjects: Folklore

description: This thesis explores graduation street painting, a practice of the graduates of John Handley High School in Winchester, Virginia, which has been referred to as graffiti in the city’s local newspaper. Although graffiti has been associated with vandalism and gang activity in Northern Virginia, I argue that the graduation street painting is unique because of its construction and placement. Graduation street painting also provides some Winchester residents with fond images in landscapes of place and memory while it complicates notions of heritage and legacy for other residents. The painting constitutes a public performance by Handley graduates that is intended to invite participation with members of their communities, but those communities do not encompass all of Winchester. Graffiti frequently is perceived as an act against the community which local and regional newspapers often associate with gang activity, further perpetuating community concern. In Winchester, such perceptions have led authorities to attempt to stop and criminalize graffiti through local ordinance, while refraining from specifically addressing the graduation street painting in the language of the law. As a result, outlawing graffiti in the city code but permitting graduation street painting to continue results in the governing authorities of Winchester inadvertently reinforcing positions of privilege for graduates of John Handley High School and their communities.
Decomposable approximations revisited
Creators: name: Brown, Nathanial P.
name: Carrión, José R.
name: White, Stuart
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L05

description: Nuclear C*-algebras enjoy a number of approximation properties, most famously the completely positive approximation property. This was recently sharpened to arrange for the incoming maps to be sums of order-zero maps. We show that, in addition, the outgoing maps can be chosen to be asymptotically order-zero. Further these maps can be chosen to be asymptotically multiplicative if and only if the C*-algebra and all its traces are quasidiagonal.
description: New section 4 added, providing a lifting lemma needed for the statement of Prop 3.2. Footnote 5 added to end of proof of Prop 3.2, and bibliography and precise locations of references updated. No other changes made to sects 1-3. 19 Pages
Matter-coupled de Sitter Supergravity
Creators: name: Kallosh, Renata
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: De Sitter supergravity describes interaction of supergravity with general chiral and vector multiplets as well as one nilpotent chiral multiplet. The extra universal positive term in the potential due to the nilpotent multiplet, corresponding to the anti-D3 brane in string theory, supports de Sitter vacua in these supergravity models. In the flat space limit these supergravity models include the Volkov-Akulov model with a non-linearly realized supersymmetry. The rules for constructing pure de Sitter supergravity action are generalized here in presence of other matter multiplets. We present a strategy to derive the complete closed form general supergravity action with a given Kahler potential $K$, superpotential $W$ and vector matrix $f_{AB}$ interacting with a nilpotent chiral multiplet. It has the potential $V=e^K(|F^2 |+ |DW|^2 - 3 |W|^2)$, where $F$ is a necessarily non-vanishing value of the auxiliary field of the nilpotent multiplet. De Sitter vacua are present under simple condition that $|F^2|- 3|W|^2>0$. A complete explicit action in the unitary gauge is presented.
description: 14 pages
Doublon dynamics and polar molecule production in an optical lattice
Creators: name: Covey, Jacob P.
name: Moses, Steven A.
name: Garttner, Martin
name: Safavi-Naini, Arghavan
name: Miecnikowski, Matthew T.
name: Fu, Zhengkun
name: Schachenmayer, Johannes
name: Julienne, Paul S.
name: Rey, Ana Maria
name: Jin, Deborah S.
name: Ye, Jun
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ultracold polar molecules provide an excellent platform to study quantum many-body spin dynamics, which has become accessible in the recently realized low entropy quantum gas of polar molecules in an optical lattice. To obtain a detailed understanding for the molecular formation process in the lattice, we prepare a density distribution where lattice sites are either empty or occupied by a doublon composed of a bosonic atom interacting with a fermionic atom. By letting this disordered, out-of-equilibrium system evolve from a well-defined initial condition, we observe clear effects on pairing that arise from inter-species interactions, a higher partial wave Feshbach resonance, and excited Bloch-band population. When only the lighter fermions are allowed to tunnel in the three-dimensional (3D) lattice, the system dynamics can be well described by theory. However, in a regime where both fermions and bosons can tunnel, we encounter correlated dynamics that is beyond the current capability of numerical simulations. Furthermore, we show that we can probe the microscopic distribution of the atomic gases in the lattice by measuring the inelastic loss of doublons. These techniques realize tools that are generically applicable to heteronuclear diatomic systems in optical lattices and can shed light on molecule production as well as dynamics of a Bose-Fermi mixture.
description: 24 pages, 5 figures
De Sitter Supergravity Model Building
Creators: name: Kallosh, Renata
name: Wrase, Timm
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the explicit de Sitter supergravity action describing the interaction of supergravity with an arbitrary number of chiral and vector multiplets as well as one nilpotent chiral multiplet. The action has a non-Gaussian dependence on the auxiliary field of the nilpotent multiplet, however, it can be integrated out for an arbitrary matter-coupled supergravity. The general supergravity action with a given Kahler potential $K$, superpotential $W$ and vector matrix $f_{AB}$ interacting with a nilpotent chiral multiplet consists of the standard supergravity action defined by $K$, $W$ and $f_{AB}$ where the scalar in the nilpotent multiplet has to be replaced by a bilinear combination of the fermion in the nilpotent multiplet divided by the Gaussian value of the auxiliary field. All additional contributions to the action start with terms quartic and higher order in the fermion of the nilpotent multiplet. These are given by a simple universal closed form expression.
description: 15 pages
Imaging Spin Dynamics in Monolayer WS2 by Time-Resolved Kerr Rotation Microscopy
Creators: name: Bushong, Elizabeth J.
name: Newburger, Michael
name: Yunqiu
name: Luo
name: McCreary, Kathleen M.
name: Singh, Simranjeet
name: Martin, Iwan B.
name: Cichewicz, Edward J.
name: Jonker, Berend T.
name: Kawakami, Roland K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Monolayer transition metal dichalcogenides (TMD) have immense potential for future spintronic and valleytronic applications due to their two-dimensional nature and long spin/valley lifetimes. We investigate the origin of these long-lived states in n-type WS2 using time-resolved Kerr rotation microscopy and photoluminescence microscopy with ~1 micron spatial resolution. Comparing the spatial dependence of the Kerr rotation signal and the photoluminescence reveals a correlation with neutral exciton emission, which is likely due to the transfer of angular momentum to resident conduction electrons with long spin/valley lifetimes. In addition, we observe an unexpected anticorrelation between the Kerr rotation and trion emission, which provides evidence for the presence of long-lived spin/valley-polarized dark trions. We also find that the spin/valley polarization in WS2 is robust to magnetic fields up to 700 mT, indicative of spins and valleys that are stabilized with strong spin-orbit fields.
description: 27 pages, 10 figures
Entropy in the interior of a black hole and thermodynamics
Creators: name: Zhang, Baocheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Based on a recent proposal for the volume inside a black hole, we calculate the entropy associated with this volume and show that such entropy is proportional to the surface area of the black hole. Together with the consideration of black hole radiation, we find that the thermodynamics associated with the entropy is likely to be caused by the vacuum polarization near the horizon.
Magneto hydrodynamic simulations of the supernova remnant G1.9+0.3
Creators: name: Zhang, Shaobo
name: Tian, Wenwu
name: Zhang, Mengfei
name: Zhu, Hui
name: Cui, Xiaohong
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The youngest Galactic supernova remnant G1.9+0.3 shows a discrete feature between its radio and X-ray morphologies. The observed radio morphology features a single maximum in the north, while the X-ray observation shows two opposite 'ears' on the east and west sides. Using 3D magneto hydrodynamical simulations, we investigate the formation of the discrete feature of the remnant. We have tested different parameters for better simulation and reproduced similar discrete features under an environment with density gradient and an environment with clump, which provides a possible explanation of the observation.
description: 7 pages, 3 figures, accepted for publication in ApJ
Normative Beliefs and Values that Shape Mother’s Care Seeking Behaviours for Skilled Birth Attendance (SBA) during Birthing in Africa: A Scoping Review Protocol
Creators: name: Jacobs, Choolwe
name: Hyder, Adnan
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences

description: This is a scoping review protocol aimed at understanding the beliefs and values and how mothers in Africa are influenced by relational normative motivations (as “hidden” barriers and facilitators) to the utilisation of Skilled Birth Attendance (SBA) in health facilities. Google Scholar, PubMed, EBSCOhost, SCOPUS, Embase and WEB of Science will be searched for articles that meet the eligibility criteria. The primary search will include peer-reviewed articles Study selection will conform to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) guidelines, and the Mixed Method Appraisal Tool will determine the quality of the included studies. Content analysis will be used to present the narrative. The review will complement evidence base on normative beliefs and values shaping care seeking behaviours for Skilled Birth Attendance by mothers in Africa.
Long-term assessment of great ape cognition
Creators: name: Bohn, Manuel
name: Eckert, Johanna
name: Hanus, Daniel
name: Haun, Daniel
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Animal Studies
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This project assesses the stability, reliability, and predictability of great ape cognition. We repeatedly test ~40 great apes on 5 cognitive tasks. At the same time, we record a range of variables, which we use to predict variation in cognitive performance.
Topological classes of rotating black holes
Creators: name: Wu, Di
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we investigate the topological numbers for singly rotating Kerr black holes in arbitrary dimensions and four-dimensional Kerr-Newman black hole. We show that for uncharged black holes, the rotation parameter has a significant effect on the topological number, and for rotating black holes, the dimension of spacetime has a remarkable effect on the topological number too. In addition, we find that the topological numbers of the four-dimensional Kerr and Kerr-Newman black holes are the same, which seems to indicate that the electric charge parameter has no effect on the topological number of rotating black holes. Our current research provides more evidence that the conjecture put forward in Wei et al. [Phys. Rev. Lett. 129, 191101 (2022)], according to which all black hole solutions should be separated into three different topological classes, is accurate, at least in the pure Einstein-Maxwell gravity theory.
description: 6 pages, 6 figures, 1 table, revtex4-1.cls, to appear in PRD
Wireless Powered Communications: Performance Analysis and Optimization
Creators: name: Zhong, Caijun
name: Chen, Xiaoming
name: Zhang, Zhaoyang
name: Karagiannidis, George
Publisher: name: arXiv
Year: 2015
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper investigates the average throughput of a wireless powered communications system, where an energy constrained source, powered by a dedicated power beacon (PB), communicates with a destination. It is assumed that the PB is capable of performing channel estimation, digital beamforming, and spectrum sensing as a communication device. Considering a time splitting approach, the source first harvests energy from the PB equipped with multiple antennas, and then transmits information to the destination. Assuming Nakagami-m fading channels, analytical expressions for the average throughput are derived for two different transmission modes, namely, delay tolerant and delay intolerant. In addition, closed-form solutions for the optimal time split, which maximize the average throughput are obtained in some special cases, i.e., high transmit power regime and large number of antennas. Finally, the impact of co-channel interference is studied. Numerical and simulation results have shown that increasing the number of transmit antennas at the PB is an effective tool to improve the average throughput and the interference can be potentially exploited to enhance the average throughput, since it can be utilized as an extra source of energy. Also, the impact of fading severity level of the energy transfer link on the average throughput is not significant, especially if the number of PB antennas is large. Finally, it is observed that the source position has a great impact on the average throughput.
description: accepted to appear in IEEE Transactions on Communications
The NLRP3 inhibitor MCC950 inhibits IL-1β production in PBMC from 19 patients with Cryopyrin-Associated Periodic Syndrome and in 2 patients with Schnitzler’s Syndrome
Creators: name: Corcoran, Sarah
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Medicine and Health Sciences
subject: Life Sciences
subject: inflammasome
subject: mcc950
subject: nlrp3

description: Underlying data to support submission
Ultrabroadband dispersive radiation by spatiotemporal oscillation of multimode waves
Creators: name: Wright, Logan G.
name: Wabnitz, Stefan
name: Christodoulides, Demetrios N.
name: Wise, Frank W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Despite the abundance and importance of three-dimensional systems, relatively little progress has been made on spatiotemporal nonlinear optical waves compared to time-only or space-only systems. Here we study radiation emitted by three-dimensionally evolving nonlinear optical waves in multimode fiber. Spatiotemporal oscillations of solitons in the fiber generate multimode dispersive wave sidebands over an ultrabroadband spectral range. This work suggests routes to multipurpose sources of coherent electromagnetic waves, with unprecedented wavelength coverage.
description: 13 pages, 3 figures, Supplementary Movie files for preprint available at: https://www.youtube.com/watch?v=h3meO8G6ZzA and https://www.youtube.com/watch?v=k42llO-c1rc
IMAGNÉTICA MOTORA NO TRATAMENTO DA DOR DO MEMBRO FANTASMA- UMA REVISÃO INTEGRATIVA DA LITERATURA
Creators: name: Bianca Pereira Bezerra, Joyce
name: Ribeiro Santos Silva, Luanna
name: Patrícia da Silva Souza, Ana
name: Claudia Barbosa da Fonseca Carneiro, Antonietta
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 429999
subject: Other health sciences not elsewhere classified

description: A síndrome do membro fantasma é decorrente da amputação, sendo considerada como uma dor crônica pela maioria dos indivíduos, sua particularidade é uma modificação no processamento de organização cortical. A imagética motora é um método de tratamento que tem como objetivo central reeducar o cérebro desses indivíduos com um membro amputado. Essa técnica ativa os córtices somatossensorial, pré-motor e M1 contralateral do membro fantasma. A ativação dessas áreas é proposta para aliviar a percepção da dor associada à imaginação e observação do movimento. Objetiva-se com esse estudo investigar o uso da Imagética motora no tratamento da dor do membro fantasma através de uma revisão integrativa da literatura. A coleta de dados foi realizada no mês de setembro de 2022, na base de dados Pubmed, por dois pesquisadores. Utilizou-se para a busca dos artigos, os seguintes descritores: “phantom limb pain AND motor imagery”. Foram encontrados sessenta e dois artigos, publicados entre os anos de 2001 e 2022. Após a leitura na íntegra de seis artigos, incluiu-se três trabalhos. Foi possível concluir que o uso da imagética motora para tratar a dor do membro fantasma, pode promover resultados positivos quando associado à fisioterapia, no que se refere à melhora da dor e função dos indivíduos amputados.
Axiomatic de Sitter quantum Yang-Mills theory with color confinement and mass gap
Creators: name: Takook, M. V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The analyticity property of de Sitter's quantum Yang-Mills theory in the framework of Kerin space quantization, including quantum metric fluctuation, is demonstrated. This property completes our previous work regarding quantum Yang-Mills theory in de Sitter's ambient space formalism, and we can construct an axiomatic quantum field theory similar to Wightman's axioms. The color confinement is proven for the general case, which was previously approved in the early universe. It is shown by using the interaction between gluon fields and the conformal sector of the gravitational field, which is a massless minimally coupled scalar gauge field. The gluon mass results from the interaction between the gluon fields and the massless minimally coupled scalar field as a conformal sector of the gravitational field and then the symmetry-breaking setting due to the vacuum expectation value of the scalar field.
description: 9 pages