cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Z_2 Symmetry Prediction for the Leptonic Dirac CP Phase
Creators: name: Ge, Shao-Feng
name: Dicus, Duane A.
name: Repko, Wayne W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Model-independent consequences of applying a generalized hidden horizontal Z_2 symmetry to the neutrino mass matrix are explored. The Dirac CP phase delta_D can be expressed in terms of the three mixing angles as 4 c_a s_a c_s s_s s_x cos delta_D = (s^2_s - c^2_s s^2_x) (c^2_a - s^2_a) where the s_i, c_i are sines and cosines of the atmospheric, solar, and reactor angles. This relation is independent of neutrino masses and whether neutrinos are Dirac- or Majorana-type. Given the present constraints on the angles, delta_D is constrained to be almost maximal, a result which can be explored in experiments such as NOvA and T2K. The Majorana CP phases do not receive any constraint and are thus model-dependent. Also a distribution of theta_x with a lower limit is obtained without specifying delta_D.
description: 5 pages, 4 figures; Condensed version or PLB with references added; for more details see the previous version
State of the Knowledge Report - HLW/SF Containers
Creators: name: Padovani Cristiano
name: Nikitas, Diomidis
name: Hesketh James
name: Fraser, King
name: Smart Nick
Publisher: name: Zenodo
Year: 2023

description: The roadmap describes typical programme goals, activities and capabilities needed against 7 themes, which are each further broken down into sub-themes and domains in what we can call the Goals Breakdown Structure (GBS). The State-of-Knwoledge is the experts’ view of the most relevant knowledge and associated uncertainties in a specific domain applied in the context of a radioactive waste management programme. The specific domain of this document is "HLW/SF Containers" (Domain 3.2.1)
Supplementary document for Flexible Graphene-based Metamaterial Sensor for Highly Sensitive Detection of Bovine serum albumin - 6139920.pdf
Creators: name: Xiao, Meiyu
name: Lang, Tingting
name: ren, zhe
name: Hong, Zhi
name: shen, changyu
name: Zhang, Jinhui
name: Cen, Wenyang
name: Yu, Zhenyu
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplementary Information
Additional file 1 of SPServer: split-statistical potentials for the analysis of protein structures and protein–protein interactions
Creators: name: Aguirre-Plans, Joaquim
name: Meseguer, Alberto
name: Molina-Fernandez, Ruben
name: Marín-López, Manuel Alejandro
name: Gaurav Jumde
name: Casanova, Kevin
name: Bonet, Jaume
name: Fornes, Oriol
name: Fernandez-Fuentes, Narcis
name: Oliva, Baldo
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Hematology

description: Additional file 1. Data.
Sublinearity of the travel-time variance for dependent first-passage percolation
Creators: name: Berg, Jacob van den
name: Kiss, Demeter
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: Let $E$ be the set of edges of the $d$-dimensional cubic lattice $\mathbb{Z}^d$, with $d\geq2$, and let $t(e),e\in E$, be nonnegative values. The passage time from a vertex $v$ to a vertex $w$ is defined as $\inf_{π:v\rightarrow w}\sum_{e\inπ}t(e)$, where the infimum is over all paths $π$ from $v$ to $w$, and the sum is over all edges $e$ of $π$. Benjamini, Kalai and Schramm [2] proved that if the $t(e)$'s are i.i.d. two-valued positive random variables, the variance of the passage time from the vertex 0 to a vertex $v$ is sublinear in the distance from 0 to $v$. This result was extended to a large class of independent, continuously distributed $t$-variables by Bena\"ım and Rossignol [1]. We extend the result by Benjamini, Kalai and Schramm in a very different direction, namely to a large class of models where the $t(e)$'s are dependent. This class includes, among other interesting cases, a model studied by Higuchi and Zhang [9], where the passage time corresponds with the minimal number of sign changes in a subcritical "Ising landscape."
description: Published in at http://dx.doi.org/10.1214/10-AOP631 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A galaxy as the source of a Civ absorption system close to the epoch of reionization
Creators: name: Diaz, C. Gonzalo
name: Ryan-Weber, Emma V.
name: Cooke, Jeff
name: Pettini, Max
name: Madau, Piero
name: .
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We find a bright (L_{UV}=2.5 L*_{z=6}) Lyman alpha emitter at redshift z=5.719 at a projected distance of 79 physical kpc from a strong triply ionized carbon (Civ) absorption system at redshift z=5.7238 previously reported in the spectrum of the z_{em} = 6.309 QSO SDSS J1030+0524. This is the highest redshift galaxy-absorber pair detected to-date, supporting the idea that galaxy-wide outflows were already in place at the end of the epoch of reionization. The proximity of this object makes it the most likely source of metals, consistent with models of outflows at lower redshift where significant observational evidence relates metal absorption systems with galaxies hosting outflows. In a typical outflow scenario, a wind of 200 km/s, active since the universe was only 0.6 Gyr old (z ~8.4), could eject metals out to 79 kpc at z=5.719. Although the origin of metals in the intergalactic medium (IGM) is still under debate, our results are consistent with predictions from cosmological simulations which reproduce the evolution of the cosmic density of Civ, from z ~ 6 to the present day based on outflow-driven enrichment of the IGM. We also report two more Lyman alpha emitters in this field, at z=5.973\pm 0.002 and z=5.676\pm 0.002 respectively, the former confirming the original identification by Stiavelli et al. Our results suggest that the colour cut typically used to identify i-dropouts (i_{775}-z_{850}>1.3) misses a non-negligible fraction of blue galaxies with faint UV continuum at z \geq 5.7.
description: Accepted for publication in MNRAS, 9 pages, 3 figures, 1 table
Perception, persuasion, and unity : the building of the United Arab Republic and the Arab Federation
Creators: name: Tabbaa, Sanad
Publisher: name: University of British Columbia
Year: 2022

description: This study examines the legitimacy of two Pan-Arab unions founded in the opening months of 1958. The first was the United Arab Republic (UAR), a union between Egypt and Syria, and the second was the Hashemite Arab Federation (AF) between Jordan and Iraq. The UAR is often framed in academia and collective memory of Arab societies as a disastrous, but genuine, attempt at Arab Unity, while the AF is usually forgotten and considered illegitimate. I posit that legitimacy, defined broadly as a set of attitudes by citizens which suggest that the state is rightfully holding and exercising political power, is crucial in order to understand the disappearance of the latter union from historical memory. This study compares the motivations for the unions and their ideological underpinnings against the implicit and explicit messaging within these unions’ newspapers and radio broadcasts. I argue that it is through implicit media messaging about Arab Nationalism, and the production of separate forms of nationalism, that legitimacy is formed. By legitimizing one nationalism over the other, Arab citizens consciously and unconsciously chose to disregard the other and its products, opting to legitimize and remember the UAR, and delegitimize and forget the AF.
Venturing on a double trend. Digital startups for climate action in Mexico
Creators: name: Vilchez, Paul
Publisher: name: Zenodo
Year: 2023
Subjects: Sustainable digital entrepreneurship
Digital transformation
Sustainability
Startups
Mexico
Global south

description: Entrepreneurial ventures that combine sustainability and digital innovation are seen as potential solutions to change the status quo and modern way of doing business while addressing urgent environmental and societal problems, such as the climate crisis. However, there is still a lot to learn about these kinds of enterprises and how they deal with their complexities. This study explores the characteristics of sustainable digital entrepreneurs and reveals seven key challenges for this new kind of entrepreneur in Mexico. The findings further the understanding of sustainable digital entrepreneurship, especially within the context of the global south. Additionally, it provides implications for entrepreneurs, their ecosystems, and policy makers.
Learning to trust : exploring the relationship between user engagement and perceptions of trustworthiness in self-sovereign blockchain systems
Creators: name: Suleman, Zakir
Publisher: name: University of British Columbia
Year: 2022

description: Blockchain can be characterized as a technology that enables social trust between actors. In Satoshi Nakamoto’s original vision, trust emerges through transparency, as the technology allows for expert users to verify any transaction by consulting a shared ledger. However, for lay users the technology itself can be quite opaque. Further, in private, permissioned medical blockchain applications, transparency can conflict with the need for confidentiality. This leaves an open question of how blockchain can enable social trust in these situations. Research on blockchain technology points to the importance of user experience design as providing a foundation. What then is the relationship between how users experience blockchain systems and how they may come to trust them? While there is some research exploring how user experiences with blockchain systems influences trust, the relationship between the front-end design of these systems, user engagement, which has been a major focus of user experience design for non-blockchain systems, and user trust in blockchain and distributed ledger systems has not explored previously. To address the gap in this nascent area of literature, this study presents original exploratory research on the relationship between user engagement and the user’s perception of trustworthiness with MYPDx, a prototype blockchain system that utilizes self-sovereign identity principles to enable patients to share genetic and other biomarker information with healthcare researchers. This research utilizes multiple methods to explore the relationship between user engagement and users’ perception of blockchain system trustworthiness, utilizing survey and interview data gathered during usability testing with a diverse sample of users (n=20). A strong positive correlation was established between the extent to which users found the system engaging and assessed the system to be trustworthy. The extent to which MYPDx was seen as usable was most strongly correlated with users’ assessment of its trustworthiness. Analysis of the research data indicates that users undergo a process of learning about the system through engagement, employing indicators from the system’s user interface to assess whether to trust the system. This study explores this interaction in more detail, presenting a theoretical picture of this phenomenon and design principles to inform future design and research.
A Língua Portuguesa na Ciência | Cartas com Ciência na TEMPO - Revista da Escola Portuguesa de Díli
Creators: name: Escola Portuguesa de Díli
Publisher: name: Escola Portuguesa de Díli - CELP - Ruy Cinatti, Rua 12 de Novembro, Díli, Timor-Leste in Zenodo
Year: 2021

description: Artigo sobre programa da Cartas com Ciência na TEMPO - Revista da Escola Portuguesa de Díli, originalmente publicada em https://epd-celp.org/
Quantum and classical resonant escapes of a strongly-driven Josephson junction
Creators: name: Yu, H. F.
name: Zhu, X. B.
name: Peng, Z. H.
name: Cao, W. H.
name: Cui, D. J.
name: Tian, Ye
name: Chen, G. H.
name: Zheng, D. N.
name: Jing, X. N.
name: Lu, Li
name: Zhao, S. P.
name: Han, Siyuan
Publisher: name: arXiv
Year: 2010
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The properties of phase escape in a dc SQUID at 25 mK, which is well below quantum-to-classical crossover temperature $T_{cr}$, in the presence of strong resonant ac driving have been investigated. The SQUID contains two Nb/Al-AlO$_{x} $/Nb tunnel junctions with Josephson inductance much larger than the loop inductance so it can be viewed as a single junction having adjustable critical current. We find that with increasing microwave power $W$ and at certain frequencies $ν$ and $ν$/2, the single primary peak in the switching current distribution, \textrm{which is the result of macroscopic quantum tunneling of the phase across the junction}, first shifts toward lower bias current $I$ and then a resonant peak develops. These results are explained by quantum resonant phase escape involving single and two photons with microwave-suppressed potential barrier. As $W$ further increases, the primary peak gradually disappears and the resonant peak grows into a single one while shifting further to lower $I$. At certain $W$, a second resonant peak appears, which can locate at very low $I$ depending on the value of $ν$. Analysis based on the classical equation of motion shows that such resonant peak can arise from the resonant escape of the phase particle with extremely large oscillation amplitude resulting from bifurcation of the nonlinear system. Our experimental result and theoretical analysis demonstrate that at $T\ll T_{cr}$, escape of the phase particle could be dominated by classical process, such as dynamical bifurcation of nonlinear systems under strong ac driving.
description: 10 pages, 9 figures, 1 table
Robotic Support for Haptic Dementia Exercises
Creators: name: Schweiger, Nadine
name: Wolff, Christian
Publisher: name: Universität Regensburg
Year: 2023
Subjects: subject: 004 Informatik

description: Due to demographic change, the number of seniors in nursing homes will increase over the next few years. Since caring for people with dementia is very time-consuming and nursing homes are cutting staff due to cost pressures, the care sector faces enormous challenges in the coming years. However, regular training of certain physical exercises adapted to the individual state of health is very important for the health promotion and resilience of people with dementia. Therefore, it is necessary to explore a dementia robot that enables seniors to perform these exercises independently and flexibly. As dementia exercises that can be transferred to a robot, ball throwing, high-five game and strength exercises have already been derived in preliminary work. Based on this, an adaptive, optimizing and real-time interaction system has now been researched, which uses rule-based Fuzzy Logic to classify the degree of dementia and Evolutionary Algorithms to adapt the exercise parameters to the state of health. To develop the classifier, the expert knowledge of caregivers was collected using knowledge acquisition. The expert knowledge was formalized in a knowledge base using a hybrid inference mechanism. The results show that the degree of dementia can be correctly classified for the ball throwing, high-five game and strength exercise. Similarly, the exercise parameters can also be optimized with respect to individual therapy progress. The interaction system was successfully tested in a real-time robot simulation. Initial tests with a real two-arm robot were successfully performed. The evaluation with trained personnel as well as the acceptance study in a nursing home are in preparation.
Additional file 1 of Clustering pattern and evolution characteristic of microRNAs in grass carp (Ctenopharyngodon idella)
Creators: name: Niu, Huiqin
name: Pang, Yifan
name: Xie, Lingli
name: Yu, Qiaozhen
name: Shen, Yubang
name: Li, Jiale
name: Xu, Xiaoyan
Publisher: name: figshare
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Detailed information of miRNAs collinear blocks. Collinear blocks between the two species are shown in blue.
QORAQALPOG'ISTON RESPUBLIKASIDA PARLAMENT NAZORATINI AMALGA OSHIRISHNING KONSTITUTSIYAVIY-HUQUQIY ASOSLARI
Creators: name: Naurizbaeva, Gulayim
Publisher: name: Zenodo
Year: 2024

description: Huquqiy davlatchilikni shakllantirish ko‘plab muammolarni bartaraf etish bilan uzviy bog’liq bo‘lgan murakkab va davomli jarayondir. Bugungi kunga kelib oddiy bir haqiqatni inkor etish mumkin emas, ya’ni, davlat boshqaruvida keng vakolatga ega bo‘lgan parlamentsiz mamlakatda to‘laqonli demokratiya bo‘lishi mumkin emas. Bunda parlament xalq manfaatlaridan kelib chiqqan holda, qonunlarning ijro hokimiyati organlari tomonidan to‘liq bajarilishini nazorat qilib borishi mamlakat taraqqiyotida muhim omildir.
BEAVER ACTIVITY AND FLORA SURVEY IN CHAIN O'LAKES STATE PARK, NOBLE COUNTY INDIANA
Creators: name: Mayo, Patrick Jaymes
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 310302
subject: Community ecology (excl. invasive species ecology)
classificationCode: 310304
subject: Freshwater ecology
classificationCode: 310307
subject: Population ecology

description: North American beaver are ecosystem and habitat altering mammals with a wide distribution in North America. Beaver are associated with bodies of fresh water while utilizing riparian habitat by foraging on woody and herbaceous, terrestrial and aquatic vegetation, as well as creating lodges, dams, dens, and scent mounds. Chain O’Lakes State Park was chosen as a study area for surveying beaver activity and woody species communities. The aim of the study was to better understand the relationship between beaver, and specifically, the woody vegetation in their foraging and home range. There is a large swath of habitat that beaver can utilize and alter within Chain O’Lakes State Park including the lakes, streams, and forests that attract visitors. The factors that have been found to influence beaver utilization in Chain O’Lakes State Park (and North America at large) are woody species community composition, abundance of heavily preferred woody species, as well as a combination of both an absence of predators and an abundance of aquatic vegetation. Based on the distribution of heavily, occasionally, and rarely preferred woody species across the understory (new individuals) and overstory (mature individuals) stratum an inference can be made that most of the riparian habitat around the lakes will continue to and/or shift into a higher proportion of species that beaver heavily select. A minority of the habitat shall shift away from those species and towards rarely and/or occasionally selected species. I will provide USDA APHIS Wildlife Services that play a wildlife management role in Chain O’Lakes State Park with the survey information detailing how beaver and their structures interact with the ecosystem, hypothesized methods for preserving the woody species that are targeted by beaver foraging within the park, and supplementary information that may aid in maintaining the riparian habitats for the benefit of park’s biodiversity and wildlife persistence while continuing to provide an enriched experience within Northwest Indiana with the potential to inform the greater collection of parks and maintained land at large.
When does the K_4-free process stop?
Creators: name: Warnke, Lutz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C80 (Primary) 60C05 (Secondary)

description: The K_4-free process starts with the empty graph on n vertices and at each step adds a new edge chosen uniformly at random from all remaining edges that do not complete a copy of K_4. Let G be the random maximal K_4-free graph obtained at the end of the process. We show that for some positive constant C, with high probability as $n \to \infty$, the maximum degree in G is at most $C n^{3/5}\sqrt[5]{\log n}$. This resolves a conjecture of Bohman and Keevash for the K_4-free process and improves on previous bounds obtained by Bollobás and Riordan and by Osthus and Taraz. Combined with results of Bohman and Keevash this shows that with high probability G has $Θ(n^{8/5}\sqrt[5]{\log n})$ edges and is `nearly regular', i.e., every vertex has degree $Θ(n^{3/5}\sqrt[5]{\log n})$. This answers a question of Erdős, Suen and Winkler for the K_4-free process. We furthermore deduce an additional structural property: we show that whp the independence number of G is at least $Ω(n^{2/5}(\log n)^{4/5}/\log \log n)$, which matches an upper bound obtained by Bohman up to a factor of $Θ(\log \log n)$. Our analysis of the K_4-free process also yields a new result in Ramsey theory: for a special case of a well-studied function introduced by Erdős and Rogers we slightly improve the best known upper bound.
description: 39 pages, 3 figures. Minor edits. To appear in Random Structures and Algorithms
Additional file 1 of Implementation of an interprofessional collaboration in practice program: a feasibility study using social network analysis
Creators: name: Smit, Linda C.
name: Dikken, Jeroen
name: Moolenaar, Nienke M.
name: Schuurmans, Marieke J.
name: Wit, Niek J. De
name: Bleijenberg, Nienke
Publisher: name: figshare
Year: 2021
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1. Evaluation questions IPCP program.
Bulk metric of brane world models and submanifolds in 6D pseudo-Euclidean space-time
Creators: name: Smolyakov, Mikhail N.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this short note, five-dimensional brane world models with dS_{4} metric on the branes are discussed. The explicit coordinate transformations, which show the equivalence between the bulk metric of these brane world models and the metric induced on an appropriate submanifolds in the flat six-dimensional pseudo-Euclidean space-time, are presented. The cases of the zero and non-zero cosmological constant in the bulk are discussed in detail.
description: 5 pages, typos corrected
RESIDUAL STRESS AND MICROSTRUCTURAL EVOLUTION OF COMPOSITES AND COATINGS FOR EXTREME ENVIRONMENTS
Creators: name: Ferguson, John I
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 400101
subject: Aerospace materials
classificationCode: 400102
subject: Aerospace structures
classificationCode: 401699
subject: Materials engineering not elsewhere classified

description: A current engineering challenge is to understand and validate material systems capable of maintaining structural viability under the elevated temperature and environmental conditions of hypersonic flight. One aspect of this challenge is the joining of multiple materials with thermal expansion mismatch, which can lead to residual stress, resulting in debits in component lifetime under in-service loading. The focus of this work is a series of studies focused on a ceramic-metal composite (WC/Cu), a zirconia coating applied to a carboncarbon (C/C) composite, and a silicide (R512E) coating applied to a Nb-based alloy (C103). Each of these material systems are candidates for elevated temperature applications in which dissimilar constituents result in residual stress in the material. Each study leveraged experimental residual strain measurements, with the primary focus on the use of synchrotron X-ray diffraction, in conjunction with representative models, and microscopy to illuminate the active mechanisms in the development and evolution of residual stress in the bulk material. The combination of experimental and modeling predictions provides a framework to inform the viability and lifing of material systems exhibiting dissimilar expansion properties.
Dressed Wilson Loops on S^2
Creators: name: Kalousios, Chrysostomos
name: Young, Donovan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a new, two-parameter family of string solutions corresponding to the holographic duals of specific 1/8-BPS Wilson loops on S^2 in N = 4 supersymmetric Yang-Mills theory. The solutions are obtained using the dressing method on the known longitude solution in the context of the auxiliary sigma-model on S^3 put forth in arXiv:0905.0665[hep-th]. We verify that the regularized area of the worldsheets are consistent with expectations.
description: 1+14 pages, 4 figures. v2 added numerical results, version published in Phys. Lett. B
Constraints on the Generalized Chaplygin Gas Model from Gamma-Ray Bursts
Creators: name: Freitas, R. C.
name: Gonçalves, S. V. B.
name: Velten, H. E. S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the Generalized Chaplygin gas model (GCGM) using Gamma-ray bursts as cosmological probes. In order to avoid the so-called circularity problem we use cosmology-independent data set and Bayesian statistics to impose constraints on the model parameters. We observe that a negative value for the parameter $α$ is favoured if we adopt a flat Universe and the estimated value of the parameter $H_{0}$ is lower than that found in literature.
description: 10 pages, 29 figures, accepted for publication in Physics Letters B
Prime real estate : how urban landscape variables influence bat presence in Vancouver, Canada
Creators: name: Craig, Julia
Publisher: name: University of British Columbia
Year: 2022

description: Understanding how wildlife use urban landscapes is increasingly important as cities grow and impact the world’s biodiversity. Bats are a critical part of urban ecosystems, but little is known about which bat species live in cities, how urban variables affect their presence, and at which spatial scales. To answer these questions, we acoustically sampled Vancouver and Richmond, Canada, in 2021 via mobile bicycle transects. We found a diversity of bats (10 species) in the city, including rare and endangered species, which responded to the urban landscape at all tested spatial scales. Using Bayesian models, we found that bats were overall attracted to greenness, parks, and tall vegetation. But they were negatively affected by light pollution, intensive urban land use, and increasing distance from freshwater, which we suggest might be abiotic filters on bat presence. While all bats responded similarly to the aforementioned variables, we found nuances between low- and high-frequency functional groups that suggested spatial partitioning to avoid competition. To boost bat abundance, cities might improve or create parks and freshwater sources to increase roosting and foraging opportunities, and introduce traffic and light-pollution mitigation strategies to reduce sources of mortality and disturbance.
Photon plus heavy quark production in high energy collisions within the target rest frame formalism
Creators: name: Betemps, M. A.
name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We apply the target rest frame formalism to photon + heavy quark production cross section in hadronic collisions at high energies. We investigate the dependence of the production cross section on the photon and quark rapidities and transverse momenta. It is shown that the photon transverse momentum spectrum is a sensitive probe of color dipole scattering amplitude. The theoretical results are compared to Tevatron measurements of the differential γ+ c + X and γ+ b + X production cross sections at 1.96 TeV. An analysis for proton-proton and proton-lead collisions at the LHC regime is also performed.
description: 6 pages, 3 figures. Version to be published in Physical Review D
A New 2d/4d Duality via Integrability
Creators: name: Chen, Heng-Yu
name: Dorey, Nick
name: Hollowood, Timothy J.
name: Lee, Sungjay
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We prove a duality, recently conjectured in arXiv:1103.5726, which relates the F-terms of supersymmetric gauge theories defined in two and four dimensions respectively. The proof proceeds by a saddle point analysis of the four-dimensional partition function in the Nekrasov-Shatashvili limit. At special quantized values of the Coulomb branch moduli, the saddle point condition becomes the Bethe Ansatz Equation of the SL(2) Heisenberg spin chain which coincides with the F-term equation of the dual two-dimensional theory. The on-shell values of the superpotential in the two theories are shown to coincide in corresponding vacua. We also identify two-dimensional duals for a large set of quiver gauge theories in four dimensions and generalize our proof to these cases.
description: 19 pages, 2 figures, minor corrections and references added
Examples of Einstein spacetimes with recurrent null vector fields
Creators: name: Galaev, Anton S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q76, 83C05, 83C15, 53C29

description: The Einstein Equation on 4-dimensional Lorentzian manifolds admitting recurrent null vector fields is discussed. Several examples of a special form are constructed. The holonomy algebras, Petrov types and the Lie algebras of Killing vector fields of the obtained metrics are found.
description: 7 pages, the final version
On the Dependence of the Lifetime of an Atomic Cluster on the Intensity of Its Heat Exchange with the Environment
Creators: name: Podlivaev, A. I.
name: Katin, K. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The molecular dynamics and Monte Carlo studies of the thermal stability of C20, C36, and C60 fullerenes and the methane molecule are reported. It has been shown that the heat transfer between the atomic cluster and the external heat reservoir can either promote or prohibit the formation of defects in this cluster. The widen temperature and pressure ranges have been determined where the defect formation rate is essentially nonArrhenius. It has been shown that the lifetime of light clusters in molecules depends more strongly on the contact with the heat reservoir. A statistical model that is based on the kinetic equation and allows for an analytical solution has been developed to explain the results. Within this model, the generalized Arrhenius formula has been derived to predict the lifetime of the clusters in an arbitrary thermal contact with the environment.
description: 8 pages, 2 figures
Three-point correlators for giant magnons
Creators: name: Hernandez, Rafael
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Three-point correlation functions in the strong-coupling regime of the AdS/CFT correspondence can be analyzed within a semiclassical approximation when two of the vertex operators correspond to heavy string states having large quantum numbers while the third vertex corresponds to a light state with fixed charges. We consider the case where the heavy string states are chosen to be giant magnon solitons with either a single or two different angular momenta, for various different choices of light string states.
description: 15 pages. Latex. v2: Misprints corrected. Published version
Quantum Transduction of Telecommunications-band Single Photons from a Quantum Dot by Frequency Upconversion
Creators: name: Rakher, Matthew T.
name: Ma, Lijun
name: Slattery, Oliver
name: Tang, Xiao
name: Srinivasan, Kartik
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The ability to transduce non-classical states of light from one wavelength to another is a requirement for integrating disparate quantum systems that take advantage of telecommunications-band photons for optical fiber transmission of quantum information and near-visible, stationary systems for manipulation and storage. In addition, transducing a single-photon source at 1.3 μm to visible wavelengths for detection would be integral to linear optical quantum computation due to the challenges of detection in the near-infrared. Recently, transduction at single-photon power levels has been accomplished through frequency upconversion, but it has yet to be demonstrated for a true single-photon source. Here, we transduce the triggered single-photon emission of a semiconductor quantum dot at 1.3 μm to 710 nm with a total detection (internal conversion) efficiency of 21% (75%). We demonstrate that the 710 nm signal maintains the quantum character of the 1.3 μm signal, yielding a photon anti-bunched second-order intensity correlation, g^(2)(t), that shows the optical field is composed of single photons with g^(2)(0) = 0.165 < 0.5.
description: 7 pages, 4 figures
Weyl-Titchmarsh Theory for Schroedinger Operators with Strongly Singular Potentials
Creators: name: Kostenko, Aleksey
name: Sakhnovich, Alexander
name: Teschl, Gerald
Publisher: name: arXiv
Year: 2010
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34B20, 34L05, 34B24, 47A10

description: We develop Weyl-Titchmarsh theory for Schroedinger operators with strongly singular potentials such as perturbed spherical Schroedinger operators (also known as Bessel operators). It is known that in such situations one can still define a corresponding singular Weyl m-function and it was recently shown that there is also an associated spectral transformation. Here we will give a general criterion when the singular Weyl function can be analytically extended to the upper half plane. We will derive an integral representation for this singular Weyl function and give a criterion when it is a generalized Nevanlinna function. Moreover, we will show how essential supports for the Lebesgue decomposition of the spectral measure can be obtained from the boundary behavior of the singular Weyl function. Finally, we will prove a local Borg-Marchenko type uniqueness result. Our criteria will in particular cover the aforementioned case of perturbed spherical Schroedinger operators.
description: 34 pages
Optimizing real world applications with GCC Link Time Optimization
Creators: name: Glek, T.
name: Hubicka, J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: 68N20

description: GCC has a new infrastructure to support a link time optimization (LTO). The infrastructure is designed to allow linking of large applications using a special mode (WHOPR) which support parallelization of the compilation process. In this paper we present overview of the design and implementation of WHOPR and present test results of its behavior when optimizing large applications. We give numbers on compile time, memory usage and code quality comparisons to the classical file by file based optimization model. In particular we focus on Firefox web browser. We show main problems seen only when compiling a large application, such as startup time and code size growth.
description: 21 pages, published version
Additional file 1 of Injuries in Netball-A Systematic Review
Creators: name: Downs, Christopher
name: Snodgrass, Suzanne J.
name: Weerasekara, Ishanka
name: Valkenborghs, Sarah R.
name: Callister, Robin
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1.
Relaxation of hot electrons in a degenerate two-dimensional electron system: transition to one-dimensional scattering
Creators: name: Taubert, D.
name: Tomaras, C.
name: Schinner, G. J.
name: Tranitz, H. P.
name: Wegscheider, W.
name: Kehrein, S.
name: Ludwig, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The energy relaxation channels of hot electrons far from thermal equilibrium in a degenerate two-dimensional electron system are investigated in transport experiments in a mesoscopic three-terminal device. We observe a transition from two dimensions at zero magnetic field to quasi--one-dimensional scattering of the hot electrons in a strong magnetic field. In the two-dimensional case electron-electron scattering is the dominant relaxation mechanism, while the emission of optical phonons becomes more and more important as the magnetic field is increased. The observation of up to 11 optical phonons emitted per hot electron allows us to determine the onset energy of LO phonons in GaAs at cryogenic temperatures with a high precision, $\eph=36.0\pm0.1\,$meV. Numerical calculations of electron-electron scattering and the emission of optical phonons underline our interpretation in terms of a transition to one-dimensional dynamics.
description: 15 pages, 9 figures
Additional file 1 of Factors affecting the incidence of postoperative periprosthetic fractures following primary and revision hip arthroplasty: a systematic review and meta-analysis
Creators: name: Bissias, Christos
name: Kaspiris, Angelos
name: Kalogeropoulos, Athanasios
name: Papoutsis, Konstantinos
name: Natsioulas, Nikolaos
name: Barbagiannis, Konstantinos
name: Papagelopoulos, Panayiotis J.
name: Savvidou, Olga D.
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 1: Supplemental Table 1. PRISMA checklist
ASSESSMENT OF APPROACHES TO STUDY UBIQUITIN BINDING INTERFACES
Creators: name: Negron, Kristos
Publisher: name: Purdue University Graduate School
Year: 2023
Subjects: classificationCode: 340407
subject: Proteins and peptides

description: The process of ubiquitination is an important regulatory process that helps modulate eukaryotic signaling inside the cell. This process is described as the formation of an isopeptide linkage between the C-terminal residue of ubiquitin to the lysine residue of a target protein, a process catalyzed by the E1, E2, and E3 enzyme cascade. As mentioned, this process has only been observed in eukaryotes, although recently, prokaryotic pathogens have been shown to possess enzymes that affect the ubiquitination pathway in their hosts. While some of these enzymes have well known mechanisms, there are still many that are unknown and are novel when compared to other well documented enzymes. The studies conducted in this Thesis involve biochemical, structural, and bioinformatic studies involving both prokaryotic and eukaryotic enzymes as an approach to develop methodologies that help study processes involving ubiquitin. Among the insights provided in this document, the importance of a unique insertion found in the Legionella effector MavC, that is important for substrate recognition. The use of disulfide bridge formation to obtain Ub-DUB complexes through the design of a simple cysteine mutation on Ub. Finally, utilizing AlphaFold, in combination with other bioinformatic processes, to help study large, protein family data sets, like the USP family DUBs that is studied in this Thesis. Altogether, these findings show that through a combination of multiple techniques, we can have a more streamlined way of studying these new, exciting protein pathways.
The Briançon-Skoda Theorem and Coefficient Ideals for Non m-Primary Ideals
Creators: name: Aberbach, Ian M.
name: Hosry, Aline
Publisher: name: arXiv
Year: 2010
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: We generalize a Briançon-Skoda type theorem first studied by Aberbach and Huneke. With some conditions on a regular local ring $(R,\m)$ containing a field, and an ideal $I$ of $R$ with analytic spread $\ell$ and a minimal reduction $J$, we prove that for all $w \geq -1$, $ \bar{I^{\ell+w}} \subseteq J^{w+1} \mathfrak{a} (I,J),$ where $\mathfrak{a}(I,J)$ is the coefficient ideal of $I$ relative to $J$, i.e. the largest ideal $\mathfrak{b}$ such that $I\mathfrak{b}=J\mathfrak{b}$. Previously, this result was known only for $\m$-primary ideals.
description: 5 pages. To appear in Proc. Amer. Math. Soc
Mental health and wellness in K-12 staff affected by childhood adversity
Creators: name: Friesen, Alan R.
Publisher: name: University of British Columbia
Year: 2022

description: Although one in three Canadians have experienced childhood adversity (Afifi et al., 2014; Burczycka, 2017; McDonald et al., 2015), this study shows that childhood adversity experienced by educators in British Columbia only has a small effect on their current mental health and wellness. This was determined using an online survey completed by 305 classroom teachers, special education/resource teachers, and special education assistants using a non-random, self-selected methodology. The instruments used to measure childhood adversity and mental health and wellness were the Maltreatment and Abuse Chronology of Exposure (MACE) and Mental Health Continuum, Short Form (MHC-SF) respectively. This study found no significant differences in the prevalence of childhood adversity between classroom teachers, special education/resource teachers, and special education assistants, nor did it find a significant correlation between childhood adversity, current mental health and wellness, and educational role. Recommendations to address childhood adversity are made at the individual and systems levels, with a particular focus on decolonization and centering Indigenous solutions as a reflection of the current reality of the colonization and ongoing violence towards Indigenous peoples in this province and country.
Lifshitz tails on the Bethe lattice: a combinatorial approach
Creators: name: Bapst, Victor
name: Semerjian, Guilhem
Publisher: name: arXiv
Year: 2011
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The density of states of disordered hopping models generically exhibits an essential singularity around the edges of its support, known as a Lifshitz tail. We study this phenomenon on the Bethe lattice, i.e. for the large-size limit of random regular graphs, converging locally to the infinite regular tree, for both diagonal and off-diagonal disorder. The exponential growth of the volume and surface of balls on these lattices is an obstacle for the techniques used to characterize the Lifshitz tails in the finite-dimensional case. We circumvent this difficulty by computing bounds on the moments of the density of states, and by deriving their implications on the behavior of the integrated density of states.
description: 32 pages, 10 figures; improved results on the asymptotic behavior of the integrated density of states
Gravitational Wave Signatures of Magnetohydrodynamically-Driven Core-Collapse Supernova Explosions
Creators: name: Takiwaki, Tomoya
name: Kotake, Kei
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: By performing a series of two-dimensional, special relativistic magnetohydrodynamic (MHD) simulations, we study signatures of gravitational waves (GWs) in the magnetohydrodynamically-driven core-collapse supernovae. In order to extract the gravitational waveforms, we present a stress formula including contributions both from magnetic fields and special relativistic corrections. By changing the precollapse magnetic fields and initial angular momentum distributions parametrically, we compute twelve models. As for the microphysics, a realistic equation of state is employed and the neutrino cooling is taken into account via a multiflavor neutrino leakage scheme. With these computations, we find that the total GW amplitudes show a monotonic increase after bounce for models with a strong precollapse magnetic field ($10^{12}$G) also with a rapid rotation imposed. We show that this trend stems both from the kinetic contribution of MHD outflows with large radial velocities and also from the magnetic contribution dominated by the toroidal magnetic fields that predominantly trigger MHD explosions. For models with weaker initial magnetic fields, the total GW amplitudes after bounce stay almost zero, because the contribution from the magnetic fields cancels with the one from the hydrodynamic counterpart. These features can be clearly understood with a careful analysis on the explosion dynamics. We point out that the GW signals with the increasing trend, possibly visible to the next-generation detectors for a Galactic supernova, would be associated with MHD explosions with the explosion energies exceeding $10^{51}$ erg.
description: 34pages, 10 figures, accepted for publication in ApJ
Additional file 1 of Occurrence and incidence rate of peripheral intravascular catheter-related phlebitis and complications in critically ill patients: a prospective cohort study (AMOR-VENUS study)
Creators: name: Yasuda, Hideto
name: Yamamoto, Ryohei
name: Hayashi, Yoshiro
name: Kotani, Yuki
name: Kishihara, Yuki
name: Kondo, Natsuki
name: Sekine, Kosuke
name: Shime, Nobuaki
name: Morikane, Keita
name: Abe, Takayuki
name: Takebayashi, Toru
name: Mikihiro Maeda
name: Shiga, Takuya
name: Furukawa, Taku
name: Mototaka Inaba
name: Sachito Fukuda
name: Kiyoyasu Kurahashi
name: Murakami, Sarah
name: Yasumoto, Yusuke
name: Kamo, Tetsuro
name: Sakuraya, Masaaki
name: Rintaro Yano
name: Hifumi, Toru
name: Horiguchi, Masahito
name: Nakayama, Izumi
name: Nakane, Masaki
name: Ota, Kohei
name: Yatabe, Tomoaki
name: Yoshida, Masataka
name: Murata, Maki
name: Fujii, Kenichiro
name: Junki Ishii
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: e-Table 1. The definition of phlebitis (INS). e-Table 2. The definition of each element of the INS’s phlebitis definition. e-Table 3. Definition of catheter-related blood stream infection. (A) A definitive diagnosis of CRBSI suggested by the CDC. (B) A definitive diagnosis of CRBSI suggested by the IDSA. e-Table 4. Primary outcome per patient. e-Table 5. Primary outcome according to each inserted site and catheter gauge. e-Table 6. Each component of PIVC failure per catheter. e-Table 7. Characteristics of PIVCs and outcomes according to insertion location. e-Table 8. Characteristics of PIVCs and outcomes according to insertion location admission type.