cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Black Hole Shadows Constrain Extended Gravity
Creators: name: Prokopov, V.
name: Alexeyev, S.
name: Zenin, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The first images of black hole shadows open new possibilities to constrain modern extended gravity theories. We present the method of shadow background calculation for black hole solutions in the form of Taylor series where $g_{11} = - g_{00}^{-1}$. The method is extended to general non-rotating case $g_{11} \neq - g_{00}^{-1}$. The results of the analysis are compared with the predictions of General relativity taking into account the Event Horizon Telescope data. The results for the Horndesky model with the Gauss-Bonnet invariant, loop quantum gravity, Bumblebee model and Gauss-Bonnet gravity are in full agreement with the observations of M87*. In conformal gravity, large values of $m_2$ and $Q_s$ must be excluded. In STEGR $f(Q)$ gravity the observational limits on the parameter $α$ are: $-0.025<α<0.04$. For an alternative generalization of the Bumblebee model with the Schwarzschild approximation: $-0.3 < l < 0.45$. These results demonstrate the maximum one can achieve without taking into account of the rotation of a black hole.
Non-perturbative treatment of the linear covariant gauges by taking into account the Gribov copies
Creators: name: Capri, M. A. L.
name: Pereira, A. D.
name: Sobreiro, R. F.
name: Sorella, S. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, a proposal for the restriction of the Euclidean functional integral to a region free of infinitesimal Gribov copies in linear covariant gauges is discussed. An effective action, akin to the Gribov-Zwanziger action of the Landau gauge, is obtained which implements the aforementioned restriction. Although originally non-local, this action can be cast in local form by introducing auxiliary fields. As in the case of the Landau gauge, dimension two condensates are generated at the quantum level, giving rise to a refinement of the action which is employed to obtain the tree-level gluon propagator in linear covariant gauges. A comparison of our results with those available from numerical lattice simulations is also provided.
description: 21 pages, no figures, version to appear in EPJC
Spatiotemporal Modeling of Short Message Service Traffic Distribution
Creators: name: Elizabet, Kebede
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2020

description: Short Message Service (SMS) is a widely used text messaging service on mobile devices. Business owners and companies look forward to new ways of promoting their services and products to reach and attract the intended users. However, SMS distribution is not investigated in Ethio Telecom with time and location. The current way of selecting customers to send bulk SMS is very costly and resource wastage. The concern of the thesis is to understand the SMS distribution and develop a spatiotemporal model of SMS traffic using city of Addis Ababa, Ethiopia as a case study. The dataset is extracted from SMS traffic of Ethio Telecom network system. The model selection is performed in time and space domain using Fourier Transform methods. By applying Fourier Transform, five major frequency components are identified with different magnitude of coefficients and phases. Then, the coefficient and phase values are transformed from spatial to spectral-domain by applying Two Dimensional Discrete Cosine Transform. The tools used are Matlab for traffic modeling, MapInfo to map geographical location and SPSS for analysis. Validation of the SMS traffic distribution model is done based on the R 2 coefficient of determination statistically. The accuracy of the proposed temporal model is evaluated with real SMS traffic data. The results show that these models can accurately describe the variation pattern of real SMS traffic. In the spatial model, the effect of the level of truncation on the frequency of transformed phase and coefficient on the model performance is evaluated. Finally, a mathematical model that captures the SMS traffic variation of any location in the city at any time of the day is developed. Furthermore, correlation analysis is done between outgoing and incoming SMS traffic. The general SMS usage trend of customers that respond to SMS advertisements was analyzed.The distribution model helps the Company to know the SMS traffic distribution, which in a way helps to understand the behaviours of its customers thereby saving cost and reducing resource wastage, and plan its marketing strategy accordingly.
Joule heating to temperatures significantly exceeding room temperature could have occurred in recently reported hybrid perovskite transistors.
Creators: name: Bruevich, Vladimir
name: Patel, Yogin
name: Singer, Jonathan P.
name: Podzorov, Vitaly
Publisher: name: Zenodo
Year: 2023
Subjects: perovskite
transistor
electronics
mobility
TFT
FET
solar cell
diode
Joule heating
physics
chemistry
engineering
temperature inspection
thermal imaging
circuits

description: This post contains a short manuscript and a video describing an experiment on thermal imaging of temperature distribution in an electrically biased thin-film resistor.
Supporting information from Temporal change in functional rarity in marine fish assemblages
Creators: name: Moyes, Faye
name: Trindade-Santos, Isaac
name: Magurran, Anne E.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Recent research has uncovered rapid compositional and structural reorganization of ecological assemblages, with these changes particularly evident in marine ecosystems. However, the extent to which these ongoing changes in taxonomic diversity are a proxy for change in functional diversity is not well understood. Here we focus on trends in rarity to ask how taxonomic rarity and functional rarity covary over time. Our analysis, drawing on 30 years of scientific trawl data, reveals that the direction of temporal shifts in taxonomic rarity in two Scottish marine ecosystems is consistent with a null model of change in assemblage size (i.e. change in numbers of species and/or individuals). In both cases, however, functional rarity increases, as assemblages become larger, rather than showing the expected decrease. These results underline the importance of measuring both taxonomic and functional dimensions of diversity when assessing and interpreting biodiversity change.
(1120) Henry Tate Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Empirically Measuring Transfer Distance for System Design and Operation
Creators: name: Cody, Tyler
name: Adams, Stephen
name: Beling, Peter A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Classical machine learning approaches are sensitive to non-stationarity. Transfer learning can address non-stationarity by sharing knowledge from one system to another, however, in areas like machine prognostics and defense, data is fundamentally limited. Therefore, transfer learning algorithms have little, if any, examples from which to learn. Herein, we suggest that these constraints on algorithmic learning can be addressed by systems engineering. We formally define transfer distance in general terms and demonstrate its use in empirically quantifying the transferability of models. We consider the use of transfer distance in the design of machine rebuild procedures to allow for transferable prognostic models. We also consider the use of transfer distance in predicting operational performance in computer vision. Practitioners can use the presented methodology to design and operate systems with consideration for the learning theoretic challenges faced by component learning systems.
Long range order and symmetry breaking in Projected Entangled Pair State models
Creators: name: Rispler, Manuel
name: Duivenvoorden, Kasper
name: Schuch, Norbert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Projected Entangled Pair States (PEPS) provide a framework for the construction of models where a single tensor gives rise to both Hamiltonian and ground state wavefunction on the same footing. A key problem is to characterize the behavior which emerges in the system in terms of the properties of the tensor, and thus of the Hamiltonian. In this paper, we consider PEPS models with $\mathbb Z_2$ on-site symmetry and study the occurence of long-range order and spontaneous symmetry breaking. We show how long-range order is connected to a degeneracy in the spectrum of the PEPS transfer operator, and how the latter gives rise to spontaneous symmetry breaking under perturbations. We provide a succinct characterization of the symmetry broken states in terms of the PEPS tensor, and find that using the symmetry broken states we can derive a local entanglement Hamiltonian, thereby restoring locality of the entanglement Hamiltonian for all gapped phases.
description: v2: 9 pages, 4 figures. Significantly extended version, accepted at Phys. Rev. B
Anesthetic Management of a Patient With Situs Inversus for Bilateral Orthotopic Lung Transplantation
Creators: name: Martinelli, S.M.
name: Barrick, B.P.
name: Karenz, A.R.
name: Teeter, E.G.
name: Kumar, P.A.
name: Haithcock, B.E.
Publisher: name: W.B. Saunders
Year: 2016

description: PRIMARY CILIARY DYSKINESIA(PCD),also known as immotile-cilia syndrome,is a rare, autosomal recessive disorder that affects several different organ systems. The underlying defect typically is a mutation in dynein, leading to abnormal ciliary structure and function. Patients with PCD may experience hearing loss, recurrent pulmonary infections, chronic sinusitis, and infertility because cilia are ubiquitous in the middle ear, respiratory tract, nasal passages, and reproductive tract. Cilia also are responsible for determining proper visceral laterality in utero. Thus, during embryogenesis in patients with PCD, visceral laterality will be determined at random, and half of these patients will have situs inversus totalis, or mirror-image visceral anatomy. An additional subset of patients with PCD will have situs ambiguous, wherein visceral anatomy is neither “typical” (situs solitus) nor mirror-image (situs inversus). When present in combination with bronchiectasis and chronic sinusitis, situs inversus related to PCD represents Kartagener syndrome. The authors present the case of a patient with Kartagener syndrome who underwent bilateral orthotopic lung transplantation. Written informed consent to publish this case was obtained from the patient.
Supplementary images and tables from Seismic air guns damage rock lobster mechanosensory organs and impair righting reflex
Creators: name: Day, Ryan D.
name: McCauley, Robert D.
name: Fitzgibbon, Quinn P.
name: Hartmann, Klaas
name: Semmens, Jayson M.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Environmental Science
subject: 60801 Animal Behaviour

description: Images and tables providing additional details on the methods and results of the study
Supporting information from Temporal change in functional rarity in marine fish assemblages
Creators: name: Moyes, Faye
name: Trindade-Santos, Isaac
name: Magurran, Anne E.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Recent research has uncovered rapid compositional and structural reorganization of ecological assemblages, with these changes particularly evident in marine ecosystems. However, the extent to which these ongoing changes in taxonomic diversity are a proxy for change in functional diversity is not well understood. Here we focus on trends in rarity to ask how taxonomic rarity and functional rarity covary over time. Our analysis, drawing on 30 years of scientific trawl data, reveals that the direction of temporal shifts in taxonomic rarity in two Scottish marine ecosystems is consistent with a null model of change in assemblage size, i.e. change in numbers of species and/or individuals. In both cases, however, functional rarity increases, as assemblages become larger, rather than showing the expected decrease. These results underline the importance of measuring both taxonomic and functional dimensions of diversity when assessing and interpreting biodiversity change.
(1117) Joseph Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Hamiltonian tomography for quantum many-body systems with arbitrary couplings
Creators: name: Wang, Sheng-Tao
name: Deng, Dong-Ling
name: Duan, Lu-Ming
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Characterization of qubit couplings in many-body quantum systems is essential for benchmarking quantum computation and simulation. We propose a tomographic measurement scheme to determine all the coupling terms in a general many-body Hamiltonian with arbitrary long-range interactions, provided the energy density of the Hamiltonian remains finite. Different from quantum process tomography, our scheme is fully scalable with the number of qubits as the required rounds of measurements increase only linearly with the number of coupling terms in the Hamiltonian. The scheme makes use of synchronized dynamical decoupling pulses to simplify the many-body dynamics so that the unknown parameters in the Hamiltonian can be retrieved one by one. We simulate the performance of the scheme under the influence of various pulse errors and show that it is robust to typical noise and experimental imperfections.
description: 9 pages, 4 figures, including supplemental material
Intrapleural hemorrhage after administration of tPA: A case report and review of the literature
Creators: name: Haithcock, B.
name: Goralski, J.L.
name: Bromberg, P.A.
Publisher: name: SAGE Publications Inc.
Year: 2009

description: Objective: Intrapleural fibrinolytic enzymes have been used for over 60 years in the treatment of complicated pleural effusions to lyse loculations and promote resolution. Despite this extensive history of use, however, little is known about complications that may arise with the use of this therapy. Here we discuss a patient with chronic renal failure on hemodialysis who developed an intrapleural hemorrhage after the administration of intrapleural tPA to treat a complicated parapneumonic effusion. A review of the literature examines the efficacy and safety of this therapy, focusing on bleeding complications. Specific attention is paid to patients who have underlying coagulopathies or who are receiving anticoagulation. Data sources: A review of the literature, as indexed in PubMed, was undertaken using the following search terms in combination: tPA, pleural effusion, complications of thrombolytics, and intrapleural hemorrhage. The search was inclusive of patients under the age of 18, but was limited by English language and human subjects. Study selection/data extraction: All relevant articles identified during the search were reviewed. Those studies that reported on bleeding complications, or lack thereof, were included in this review. Limitations of each article are noted in the text. Conclusions: Multiple studies, including a 2000 ACP consensus statement and a 2008 Cochrane review, indicate the need for further investigations to evaluate the safety and efficacy of intrapleural thrombolytics for the treatment of complicated pleural effusions and empyemas. Limited studies specifically address bleeding complications, especially in subpopulations of patients receiving concurrent anticoagulant therapy.
(1118) Oliver Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
APPENDIX A - Settings and Materials from Larger communities create more systematic languages.
Creators: name: Raviv, Limor
name: Meyer, Antje
name: Shiri Lev-Ari
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Full description of materials and the experiment design
Academic Advisors as Valuable Partners for Supporting Academic Integrity
Creators: name: Javeed, Shehna
Publisher: name: Canadian Perspectives on Academic Integrity
Year: 2018
Subjects: academic integrity; campus collaboration; academic advising;proactive integrity education

description: Academic Integrity is a fundamental value in higher education. Due to the increased ease of access to all types of information through social media and the internet, the lines have become blurred on what is can be “borrowed” and used. Recent proliferation of contract cheating has only reinforced that integrity cannot be just the responsibility of the Dean’s Office or the Academic Integrity offices. Advisors and learning strategists who see students regularly, can ubiquitously play a valuable role in integrating academic honesty into their conversations and workshops. This can be achieved in collaborations with campus partners on campus wide programming, starting early with integrating the conversation about honesty in academic orientations for new students and parents, and when having difficult conversations about study success and academic decision-making.
description: Canadian Perspectives on Academic Integrity, Vol 1, No 1 (2018): Inaugural Issue
Momentum transfer models of interacting dark energy
Creators: name: Linton, Mark S.
name: Crittenden, Robert
name: Pourtsidou, Alkistis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider two models of interacting dark energy, both of which interact only through momentum exchange. One is a phenomenological one-parameter extension to $w$CDM, and the other is a coupled quintessence model described by a Lagrangian formalism. Using a variety of high and low redshift data sets, we perform a global fitting of cosmological parameters and compare to $Λ$CDM, uncoupled quintessence, and $w$CDM. We find that the models are competitive with $Λ$CDM, even obtaining a better fit when certain data sets are included.
description: 22 pages, 10 figures, 3 tables; matches published version in JCAP
Appendix C: Models from Larger communities create more systematic languages.
Creators: name: Raviv, Limor
name: Meyer, Antje
name: Shiri Lev-Ari
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Full models + results for all measures and analyses reported in the paper
(1116) William Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Activation of fibrinolytic pathways is associated with duration of supraceliac aortic cross-clamping
Creators: name: Pandurangi, K.
name: Raman, S.B.K.
name: Shepard, A.D.
name: Fanous, N.H.
name: Haithcock, B.E.
name: Conrad, M.F.
Publisher: name: The Society for Vascular Surgery
Year: 2004

description: Purpose The cause of the coagulopathy seen with supraceliac aortic cross-clamping (SC AXC) is unclear. SC AXC for 30 minutes results in both clotting factor consumption and activation of fibrinolytic pathways. This study was undertaken to define the hemostatic alterations that occur with longer intervals of SC AXC. Methods Seven pigs underwent SC AXC for 60 minutes. Five pigs that underwent infrarenal aortic cross-clamping (IR AXC) for 60 minutes and 11 pigs that underwent SC AXC for 30 minutes served as controls. No heparin was used. Blood samples were drawn at baseline, 5 minutes before release of the aortic clamp, and 5, 30, and 60 minutes after unclamping. Prothrombin time, partial thromboplastin time, platelet count, and fibrinogen concentration were measured as basic tests of hemostatic function. Thrombin-antithrombin complexes were used to detect the presence of intravascular thrombosis. Fibrinolytic pathway activation was assessed with levels of tissue plasminogen activator antigen and tissue plasminogen activator activity, plasminogen activator inhibitor-1 activity, and α2-antiplasmin activity. Statistical analysis was performed with the Student t test and repeated measures of analysis of variance. Results Prothrombin time, partial thromboplastin time, and platelet count did not differ between groups at any time. Fibrinogen concentration decreased 5 minutes (P = .005) and 30 minutes (P = .006) after unclamping in both SC AXC groups, but did not change in the IR AXC group. Thrombin- antithrombin complexes increased in both SC AXC groups, but were not significantly greater than in the IR AXC group. SC AXC for both 30 and 60 minutes produced a significant increase in tissue plasminogen activator antigen during clamping and 5 minutes after clamping. This increase persisted for 30 and 60 minutes after clamp release in the 60-minute SC AXC group. Tissue plasminogen activator activity, however, increased only in the 60-min SC AXC group during clamping (P = .02), and 5 minutes (P = .05) and 30 minutes (P = .06) after unclamping, compared with both control groups. Conclusions Thirty and 60 minutes of SC AXC results in similar degrees of intravascular thrombosis and fibrinogen depletion. Although SC AXC for both 30 and 60 minutes leads to activation of fibrinolytic pathways, only 60 minutes of SC AXC actually induces a fibrinolytic state. Fibrinolysis appears to be an important component of the coagulopathy associated with SC AXC, and is related to the duration of aortic clamping.
APPENDIX B - Comparison with Short version from Larger communities create more systematic languages.
Creators: name: Raviv, Limor
name: Meyer, Antje
name: Shiri Lev-Ari
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Additional data and analyses not included in the paper (shorter version of the experiment)
Examining how health navigation affects mental health among gay, bisexual, and other men who have sex with men living with human immunodeficiency virus in Guatemala
Creators: name: McNaughton-Reyes, L.
name: Barrington, C.
name: Angeles, G.
name: Davis, D.A.
name: Northbrook, S.
name: Matthews, D.D.
name: Muessig, K.E.
Publisher: name: Mary Ann Liebert Inc.
Year: 2021

description: Gay, bisexual, and other men who have sex with men (GBMSM) are disproportionately affected by mental health problems and human immunodeficiency virus (HIV). Health navigation has the potential to improve both HIV and mental health outcomes; however, few studies have measured the impact of navigation on mental health among people living with HIV. We analyzed longitudinal data from a sociobehavioral survey and navigation monitoring system with GBMSM living with HIV in Guatemala (n = 346) that participated in a 12-month differentiated care intervention. We examined relationships between navigation characteristics (frequency, duration, mode of interactions, and level of emotional, instrumental, and informational navigation support) and anxiety and depression using fixed-effects regression. We also examined if these relationships were moderated by baseline social support. We found that as navigation interactions increased, anxiety significantly improved [B = -0.03, standard error (SE) = 0.01 p = 0.05]. Participants who received high levels of informational navigator support also experienced a significant improvement in anxiety compared with those receiving low levels of informational support (B = -0.81, SE = 0.40, p = 0.04). Unexpectedly, we found that as the proportion of in-person navigation interactions increased, anxiety worsened (B = 1.12, SE = 0.54, p = 0.04). No aspects of navigation were significantly associated with depression and baseline social support did not moderate the relationship between navigation and anxiety and depression. To improve the mental health of key populations affected by HIV, health navigation programs should prioritize frequent interaction and informational navigation support for clients with anxiety while considering other strategies that specifically target reducing depressive symptoms, including other cost-effective modalities, such as mobile apps.
APPENDIX A - Settings and Materials from Larger communities create more systematic languages
Creators: name: Raviv, Limor
name: Meyer, Antje
name: Shiri Lev-Ari
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Full description of materials and the experiment design
Deformation quantization of the Pais-Uhlenbeck fourth order oscillator
Creators: name: Berra-Montiel, Jasel
name: Molgado, Alberto
name: Rojas, Efraín
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the quantization of the Pais-Uhlenbeck fourth order oscillator within the framework of deformation quantization. Our approach exploit the Noether symmetries of the system by proposing integrals of motion as the variables to obtain a solution to the -genvalue equation, namely the Wigner function. We also obtain, by means of a quantum canonical transformation the wave function associated to the Schrödinger equation of the system. We show that unitary evolution of the system is guaranteed by means of the quantum canonical transformation and via the properties of the constructed Wigner function, even in the so called equal frequency limit of the model, in agreement with recent results.
Applying EFT to Higgs Pair Production in Universal Extra Dimensions
Creators: name: Edelhaeuser, Lisa
name: Knochel, Alexander
name: Steeger, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to physics beyond the Standard Model. We show how the UED contributions to Higgs production can be matched to a dimension-6 operator. We then discuss the range of validity of this approach, in particular for Higgs pair production, and determine the sensitivity to the number of KK modes in the loop.
description: 13 pages, 8 figures
(1113) Mary Ellen Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
MOD-Net: A Machine Learning Approach via Model-Operator-Data Network for Solving PDEs
Creators: name: Zhang, Lulu
name: Luo, Tao
name: Zhang, Yaoyu
name: E, Weinan
name: Xu, Zhi-Qin John
name: Ma, Zheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Machine Learning (cs.LG)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we propose a a machine learning approach via model-operator-data network (MOD-Net) for solving PDEs. A MOD-Net is driven by a model to solve PDEs based on operator representation with regularization from data. For linear PDEs, we use a DNN to parameterize the Green's function and obtain the neural operator to approximate the solution according to the Green's method. To train the DNN, the empirical risk consists of the mean squared loss with the least square formulation or the variational formulation of the governing equation and boundary conditions. For complicated problems, the empirical risk also includes a few labels, which are computed on coarse grid points with cheap computation cost and significantly improves the model accuracy. Intuitively, the labeled dataset works as a regularization in addition to the model constraints. The MOD-Net solves a family of PDEs rather than a specific one and is much more efficient than original neural operator because few expensive labels are required. We numerically show MOD-Net is very efficient in solving Poisson equation and one-dimensional radiative transfer equation. For nonlinear PDEs, the nonlinear MOD-Net can be similarly used as an ansatz for solving nonlinear PDEs, exemplified by solving several nonlinear PDE problems, such as the Burgers equation.
Enzymes in Blood Lipid Metabolism
Creators: name: Clara, Lisa
Publisher: name: Zenodo
Year: 2023

description: Blood lipids refer to a group of fatty substances present in blood, mainly including cholesterol and triglycerides. There are generally two forms of cholesterols circulating in the bloodstream: low-density lipoprotein (LDL) and high-density lipoprotein (HDL). Abnormal lipid level in blood is always associated with a number of diseases, such as high blood pressure, coronary arteries, hypothyroidism, type 2 diabetes, obesity, pancreatitis, et al.
(1115) Elizabeth Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Dynamical quantum phase transitions: scaling and universality
Creators: name: Heyl, Markus
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Dynamical quantum phase transitions (DQPTs) at critical times appear as non-analyticities during nonequilibrium quantum real-time evolution. Although there is evidence for a close relationship between DQPTs and equilibrium phase transitions, a major challenge is still to connect to fundamental concepts such as scaling and universality. In this work, renormalization group transformations in complex parameter space are formulated for quantum quenches in Ising models showing that the DQPTs are critical points associated with unstable fixed points of equilibrium Ising models. Therefore, these DQPTs obey scaling and universality. On the basis of numerical simulations, signatures of these DQPTs in the dynamical buildup of spin correlations are found with an associated power-law scaling determined solely by the fixed point's universality class. An outlook is given on how to explore this dynamical scaling experimentally in systems of trapped ions.
description: 4 pages, 3 figures, minor changes, version as published
The Configuration Model for Partially Directed Graphs
Creators: name: Spricer, Kristoffer
name: Britton, Tom
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The configuration model was originally defined for undirected networks and has recently been extended to directed networks. Many empirical networks are however neither undirected nor completely directed, but instead usually partially directed meaning that certain edges are directed and others are undirected. In the paper we define a configuration model for such networks where nodes have in-, out-, and undirected degrees that may be dependent. We prove conditions under which the resulting degree distributions converge to the intended degree distributions. The new model is shown to better approximate several empirical networks compared to undirected and completely directed networks.
description: 19 pages, 3 figures, 2 tables
APPENDIX D - Examples of Structured Languages from Larger communities create more systematic languages.
Creators: name: Raviv, Limor
name: Meyer, Antje
name: Shiri Lev-Ari
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Additional examples of structured languages that were creating by different small and larger group during the experiment
Visibility and stability of superstripes in a spin-orbit-coupled Bose-Einstein condensate
Creators: name: Martone, Giovanni I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We consider a spin-$1/2$ Bose-Einstein condensate with equal Rashba and Dresselhaus spin-orbit coupling. After reviewing some relevant features of the quantum phases of the system, we present a short study on how their properties are changed by the presence of non-zero magnetic detunings and spin-asymmetric interactions. At small values of the Raman coupling and of the magnetic field the so-called stripe phase occurs, which displays both superfluidity and periodic density modulations, in analogy with supersolids. We finally review a recent proposal (Phys. Rev. A 90, 041604) to improve the visibility of the fringes, based on the space separation of the two spin components into a 2D bi-layer configuration and on the application of a $π/2$ Bragg pulse, and we show that this new configuration also yields a sizable increase of the stability of the stripe phase against magnetic fluctuations.
description: 11 pages, 6 figures, peer-reviewed conference proceedings published on the EPJ-ST volume "Novel Quantum Phases and Mesoscopic Physics in Quantum Gases". The content of this article has been partially included in the review paper arXiv:1410.5526
Supplementary Tables from Experimental evidence that cuckoos choose host nests following an egg matching strategy
Creators: name: Zhang, Jinggang
name: Santema, Peter
name: Lin, Zixuan
name: Yang, Lixing
name: Liu, Meijun
name: Li, Jianqiang
name: Deng, Wenhong
name: Kempenaers, Bart
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: 60801 Animal Behaviour
subject: FOS: Biological sciences

description: The arms race between brood parasites and their hosts provides a classic model to study coevolution. Hosts often reject the parasitic egg, and brood parasites should therefore select host nests in which the colour of the eggs best matches that of their own. Although this hypothesis has received some support, direct experimental evidence is still lacking. Here, we report on a study of Daurian redstarts, which show a distinct egg-colour dimorphism, with females laying either blue or pink eggs. Redstarts are often parasitized by common cuckoos, which lay light blue eggs. First, we showed that cuckoo eggs were more similar in spectral reflectance to the blue than to the pink redstart egg morph. Second, we report that the natural parasitism rate was higher in blue than in pink host clutches. Third, we performed a field experiment in which we presented a dummy clutch of each colour morph adjacent to active redstart nests. In this set-up, cuckoos almost always chose to parasitize a blue clutch. Our results demonstrate that cuckoos actively choose redstart nests in which the egg colour matches the colour of their own eggs. Our study thus provides direct experimental evidence in support of the egg matching hypothesis.
(1111) Henry Andrews Taylor
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
title: MR Differentiation of Endometriomas Complicated with and without Malignancy: Comparison with Pathological Findings
Creators: name: Kohno, Mari
Publisher: name: European Congress of Radiology
Year: 2014
Subjects: subject: Cancer
subject: Diagnostic procedure
subject: MR
subject: Genital / Reproductive system female
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Endometriosis is a common gynecological disease that affects approximately 10% of females of reproductive age in the United States [1].  The risk of malignant transformation of endometriosis is estimated to be approximately 0.7% in Japan [2, 3]....
(1112) Rosa Anna Tate
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Ecological parameters concerning the zooplankton community of the San Antonio estuarine system
Creators: name: Cooper, David C. (David Clayton), 1943-
Publisher: name: The University of Texas at Austin
Year: 1967
Subjects: subject: Zooplankton
subject: Ecology
subject: FOS: Biological sciences
subject: Texas
subject: San Antonio
subject: Estuarine health
subject: San Antonio estuarine system
subject: Zooplankton--Ecology--Texas--San Antonio
subject: Estuarine health--Texas--San Antonio

description: Increasing urbanization and industrialization in coastal areas has resulted in the damming of many rivers leading into coastal estuaries, and the retardation of freshwater supply can have detrimental effects upon estuarine areas. Low flow augmentation of an estuary's fresh water supply causes a reduction in river material input and an increase in estuarine salinities. This often results in extensive qualitative changes in the biological characteristics of the estuarine ecosystem (Williams 1955; Copeland and Jones 1965; Copeland 1966). Quantitative characteristics may also be affected (Odum and Wilson 1962), especially in heterotrophic systems such as those involved in this study. The productivity of a heterotrophic estuarine ecosystem may not have an instantaneous response to decreased river flow, but on a long term basis most of the nutrient material deposited in the estuarine basin will be transported to the open sea. The purpose of this study is to determine the effects of environmental variations upon an estuarine zooplankton community, with special emphasis given to environmental conditions which would be appreciably altered by low flow augmentation. This is accomplished by analysis of field data obtained from the San Antonio estuarine system from April 1966 to May 1967. The sampling period traversed a term of naturally occurring low flow; the spring of 1966 had peak river flow rates, while the spring of 1967 was a virtual drought
A large spectroscopic sample of L and T dwarfs from UKIDSS LAS: peculiar objects, binaries, and space density
Creators: name: Marocco, F.
name: Jones, H. R. A.
name: Day-Jones, A. C.
name: Pinfield, D. J.
name: Lucas, P. W.
name: Burningham, B.
name: Zhang, Z. H.
name: Smart, R. L.
name: Gomes, J. I.
name: Smith, L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the spectroscopic analysis of a large sample of late-M, L, and T dwarfs from UKIDSS. Using the YJHK photometry from ULAS and the red-optical photometry from SDSS we selected a sample of 262 brown dwarf candidates and we followed-up 196 of them using X-shooter on the VLT. The large wavelength coverage (0.30-2.48 $μ$m) and moderate resolution (R~5000-9000) of X-shooter allowed us to identify peculiar objects including 22 blue L dwarfs, 2 blue T dwarfs, and 2 low gravity M dwarfs. Using a spectral indices-based technique we identified 27 unresolved binary candidates, for which we determined the spectral type of the potential components via spectral deconvolution. The spectra allowed us to measure the equivalent width of the prominent absorption features and to compare them to atmospheric models. Cross-correlating the spectra with a radial velocity standard, we measured the radial velocity for our targets, and we determined the distribution of the sample, which is centred at -1.7$\pm$1.2 km s$^{-1}$ with a dispersion of 31.5 km s$^{-1}$. Using our results we estimated the space density of field brown dwarfs and compared it with the results of numerical simulations. Depending on the binary fraction, we found that there are (0.85$\pm$0.55) x 10$^{-3}$ to (1.00$\pm$0.64) x 10$^{-3}$ objects per cubic parsec in the L4-L6.5 range, (0.73$\pm$0.47) x 10$^{-3}$ to (0.85$\pm$0.55) x 10$^{-3}$ objects per cubic parsec in the L7-T0.5 range, and (0.74$\pm$0.48) x 10$^{-3}$ to (0.88$\pm$0.56) x 10$^{-3}$ objects per cubic parsec in the T1-T4.5 range. There seem to be an excess of objects in the L/T transition with respect to the late T dwarfs, a discrepancy that could be explained assuming a higher binary fraction than expected for the L/T transition, or that objects in the high-mass end and low-mass end of this regime form in different environments, i.e. following different IMFs.