cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Phragmén - Lindelöf principle for slice regular functions
Creators: name: Gentili, G.
name: Stoppato, C.
name: Struppa, D. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30G35 (Primary) 30C80 (Secondary)

description: The celebrated 100-year old Phragmen-Lindelof principle is a far reaching extension of the maximum modulus theorem for holomorphic functions of one complex variable. In some recent papers there has been a resurgence of interest in principles of this type for functions of a hypercomplex variable and for solutions of suitable partial differential equations. In the present article we obtain a Phragmen-Lindelof principle for slice regular functions, a class of quaternion-valued functions of a quaternionic variable which has been recently introduced.
description: 10 pages
Free-form smearing for bottomonium and B meson spectroscopy
Creators: name: Wurtz, Mark
name: Lewis, Randy
name: Woloshyn, R. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: To obtain high-quality results from lattice QCD, it is important to use operators that produce good signals for the quantities of interest. Free-form smearing is a powerful tool that helps to accomplish that goal. The present work introduces a new implementation of free-form smearing that maintains its usefulness and reduces its computational time dramatically. Applications to the mass spectrum of $B$, $B_s$, $B_c$ and bottomonium mesons show the effectiveness of the method. Results are compared with other lattice QCD studies and with experimental data where available. The present work includes the first lattice QCD exploration for some of these mesons.
description: 28 pages, 8 figures, published version
Lessons Learned From a Feasibility Study Delivered in 2 WIC Sites to Promote Physical Activity Among Pregnant Latinas
Creators: name: Soto, S.H.
name: Merchant, K.M.
name: Arredondo, E.M.
name: Nichols, J.F.
name: Sanz, S.
Publisher: name: Elsevier Inc.
Year: 2018

description: Objective: To assess the feasibility, including demand for and acceptability of a physical activity (PA) intervention among pregnant Latinas recruited at the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Methods: Women <20 weeks gestation and self-reporting <150 minutes of PA/wk were recruited from 2 WIC locations in Southern California. The 9-wk, promotora-led intervention included 1-hour sessions and 2 walking groups/wk. Results: WIC was supportive of recruitment, intervention, and evaluation activities. Of an estimated pool of 525 women at <20 wks gestation, 141 expressed interest, 108 were screened for eligibility, and 21 were enrolled. Of the 21 who enrolled, 12 completed the postintervention assessment (7 in the participant group and 5 in the nonparticipant group). Conclusions and Implications: Demand and acceptability will need to be improved before this intervention can be considered feasible, potentially by extending eligibility and improving access to intervention.
Table S6 from Neuroimaging supports the representational nature of the earliest human engravings
Creators: name: E. Mellet
name: M. Salagnon
name: A. Majkić
name: S. Cremona
name: M. Joliot
name: G. Jobard
name: B. Mazoyer
name: N. Tzourio Mazoyer
name: F. D'Errico
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Neuroscience
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: Mean BOLD value of the hROIs activated in the Words minus scrambled words contrast (p < 0.05 uncorrected)
Search for the proton decay mode $p \rightarrow \overlineν K^{+}$ with KamLAND
Creators: name: KamLAND Collaboration
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present a search for the proton decay mode $p \rightarrow \overlineν K^{+}$ based on an exposure of 8.97 kton-years in the KamLAND experiment. The liquid scintillator detector is sensitive to successive signals from $p \rightarrow \overlineν K^{+}$ with unique kinematics, which allow us to achieve a detection efficiency of 44%, higher than previous searches in water Cherenkov detectors. We find no evidence of proton decays for this mode. The expected background, which is dominated by atmospheric neutrinos, is $0.9 \pm 0.2$ events. The nonbackground-subtracted limit on the partial proton lifetime is $τ/ B(p \rightarrow \overlineν K^{+}) > 5.4 \times 10^{32}$ years at 90% C.L.
description: 9 pages, 9 figures
A nearly cylindrically symmetric source in the Brans-Dicke gravity as the generator of the rotational curves of the galaxies
Creators: name: Santos, S. Mittmann dos
name: da Silva, J. M. Hoff
name: Guimarães, M. E. X.
name: Neto, J. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Observation shows that the velocities of stars grow by approximately 2 to 3 orders of magnitude when the distances from the centers of the galaxies are in the range of $0.5$ kpc to $82.3$ kpc, before they begin to tend to a constant value. Up to know, the reason for this behavior is still a matter for debate. In this work, we propose a model which adequately describes this unusual behavior using a (nearly) cylindrical symmetrical solution in the framework of a scalar-tensor-like (the Brans-Dicke model) theory of gravity.
description: 24 pages, 4 figures, accepted for publication in Eur. Phys. J. C
(1194) William Fletcher Atkinson
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.
Anomal-E: A Self-Supervised Network Intrusion Detection System based on Graph Neural Networks
Creators: name: Caville, Evan
name: Lo, Wai Weng
name: Layeghy, Siamak
name: Portmann, Marius
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper investigates Graph Neural Networks (GNNs) application for self-supervised network intrusion and anomaly detection. GNNs are a deep learning approach for graph-based data that incorporate graph structures into learning to generalise graph representations and output embeddings. As network flows are naturally graph-based, GNNs are a suitable fit for analysing and learning network behaviour. The majority of current implementations of GNN-based Network Intrusion Detection Systems (NIDSs) rely heavily on labelled network traffic which can not only restrict the amount and structure of input traffic, but also the NIDSs potential to adapt to unseen attacks. To overcome these restrictions, we present Anomal-E, a GNN approach to intrusion and anomaly detection that leverages edge features and graph topological structure in a self-supervised process. This approach is, to the best our knowledge, the first successful and practical approach to network intrusion detection that utilises network flows in a self-supervised, edge leveraging GNN. Experimental results on two modern benchmark NIDS datasets not only clearly display the improvement of using Anomal-E embeddings rather than raw features, but also the potential Anomal-E has for detection on wild network traffic.
description: Accepted by Knowledge-Based Systems
Effects of Latino children on their mothers' dietary intake and dietary behaviors: The role of children's acculturation and the mother-child acculturation gap
Creators: name: Marcus, B.
name: Shakya, H.B.
name: Soto, S.H.
name: Arredondo, E.M.
name: Roesch, S.
name: Ayala, G.X.
Publisher: name: Elsevier Ltd
Year: 2017

description: Rationale Research shows that acculturation is important to Latinas' dietary intake and related behaviors. Although evidence suggests children may also play a role, it remains unclear whether children's acculturation is related to mothers' dietary intake/behaviors. Objectives We examined the relationship between Latino children's acculturation and mothers' dietary intake/behaviors. We also examined the mother-child acculturation gap to identify dyad characteristics associated with mothers' diet. Methods Baseline surveys were collected in 2010 from 314 Latino mother-child (7–13 years old) dyads of Mexican-origin enrolled in a family-based dietary intervention in Southern California, USA. Mother's daily intake of fruits, vegetables, and sugary beverages, percent of calories from fat, weekly away-from-home eating, and percent of weekly grocery dollars spent on fruits and vegetables were assessed via self-report. Mothers' and children's bidimensional acculturation were examined using acculturation groups (e.g., assimilated, bicultural) derived from Hispanic and non-Hispanic dimensions of language. We also assessed the acculturation gap between mothers and children with the a) difference in acculturation between mothers' and children's continuous acculturation scores and b) mother-child acculturation gap typologies (e.g., traditional mothers of assimilated children). Results Findings show that having an assimilated versus a bicultural child was negatively associated with mothers' vegetable intake and positively associated with mothers' sugary beverage intake, percent of calories from fat, and frequency of away-from-home eating, regardless of mothers’ acculturation. Traditional mothers of assimilated children reported more sugary beverage intake, calories from fat, and more frequent away-from-home eating than traditional mothers of bicultural children. Conclusion Results suggest that children's acculturation is associated with their mothers' dietary intake/behaviors and traditional mothers of assimilated children require more attention in future research.
Associations of Acculturation With Self-Report and Objective Physical Activity and Sedentary Behaviors Among Latinas
Creators: name: Chavez, A.
name: Perez, L.G.
name: Arredondo, E.M.
name: Haughton, J.
name: Marquez, D.X.
name: Soto, S.C.
Publisher: name: SAGE Publications Inc.
Year: 2017

description: Background. Less than 50% of Latinas meet physical activity (PA) recommendations. Acculturation is a complex cultural phenomenon that may influence health behaviors, but associations between acculturation and Latinas’ activity and sedentary levels are unclear. Aim. To examine associations of acculturation with Latinas’ domain-specific and total PA as well as sedentary time. Method. We analyzed baseline data collected between 2011 and 2013 among 410 Latinas (18-65 years) from a PA promotion intervention in San Diego, CA (Fe en Acción/Faith in Action). Participants wore an accelerometer to assess moderate-to-vigorous PA (MVPA) and sedentary time and completed a survey assessing domain-specific PA, sociodemographics, and acculturation as measured by length of residence in the United States and the Bidimensional Acculturation Scale (BAS) for Hispanics. Higher acculturation was defined as longer residence in the United States or being either assimilated or bicultural as per scores on the Hispanic and Anglo domains of the BAS. Results. Based on weekly averages from the accelerometer, Latinas spent 103 minutes in MVPA and 76% of total activity in sedentary time. Only 32% met MVPA recommendations via self-reported leisure-time and transportation PA. Longer residence in the United States was inversely associated with reporting any transportation or occupational PA and meeting MVPA recommendations. Assimilated/bicultural Latinas had significantly less accelerometer-based total MVPA and higher sedentary time than their lower acculturated counterparts. Conclusions. Overall, higher acculturation, based on either measure, was related to less activity. Our findings suggest interventions tailored to the acculturation levels of Latinas are needed to help reduce disparities in Latinas’ PA and sedentary behaviors.
S1. Supplemental Methods from Intraspecific sequence and gene expression variation contribute little to venom diversity in sidewinder rattlesnakes (Crotalus cerastes).
Creators: name: Rautsaw, Rhett M.
name: Hofmann, Erich P.
name: Margres, Mark J.
name: Holding, Matthew L.
name: Strickland, Jason L.
name: Mason, Andrew J.
name: Rokyta, Darin R.
name: Parkinson, Christopher L.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: Continued details on the methods used to analyze the transcriptome data
Liver Segmentation using Turbolift Learning for CT and Cone-beam C-arm Perfusion Imaging
Creators: name: Haseljić, Hana
name: Chatterjee, Soumick
name: Frysch, Robert
name: Kulvait, Vojtěch
name: Semshchikov, Vladimir
name: Hensen, Bennet
name: Wacker, Frank
name: Brüsch, Inga
name: Werncke, Thomas
name: Speck, Oliver
name: Nürnberger, Andreas
name: Rose, Georg
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Model-based reconstruction employing the time separation technique (TST) was found to improve dynamic perfusion imaging of the liver using C-arm cone-beam computed tomography (CBCT). To apply TST using prior knowledge extracted from CT perfusion data, the liver should be accurately segmented from the CT scans. Reconstructions of primary and model-based CBCT data need to be segmented for proper visualisation and interpretation of perfusion maps. This research proposes Turbolift learning, which trains a modified version of the multi-scale Attention UNet on different liver segmentation tasks serially, following the order of the trainings CT, CBCT, CBCT TST - making the previous trainings act as pre-training stages for the subsequent ones - addressing the problem of limited number of datasets for training. For the final task of liver segmentation from CBCT TST, the proposed method achieved an overall Dice scores of 0.874$\pm$0.031 and 0.905$\pm$0.007 in 6-fold and 4-fold cross-validation experiments, respectively - securing statistically significant improvements over the model, which was trained only for that task. Experiments revealed that Turbolift not only improves the overall performance of the model but also makes it robust against artefacts originating from the embolisation materials and truncation artefacts. Additionally, in-depth analyses confirmed the order of the segmentation tasks. This paper shows the potential of segmenting the liver from CT, CBCT, and CBCT TST, learning from the available limited training data, which can possibly be used in the future for the visualisation and evaluation of the perfusion maps for the treatment evaluation of liver diseases.
Neutrinos from gamma-ray bursts: propagation of cosmic rays in their host galaxies
Creators: name: Wang, Zi-Yi
name: Wang, Xiang-Yu
name: Wang, Jun-Feng
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are proposed as candidate sources of ultra-high energy cosmic rays (UHECRs). We study the possibility that the PeV neutrinos recently observed by IceCube are produced by GRB cosmic rays interacting with the interstellar gas in the host galaxies. By studying the relation between the X-ray absorption column density N_H and the surface star-formation rate of GRB host galaxies, we find that N_H is a good indicator of the surface gas density of the host galaxies. Then we are able to calculate the neutrino production efficiency of CRs for GRBs with known N_H. We collect a sample of GRBs that have both measurements of N_H and accurate gamma-ray fluence, and attempt to calculate the accumulated neutrino flux based on the current knowledge about GRBs and their host galaxies. When the CR intensity produced by GRBs is normalized with the observed UHECR flux above $10^{19}{\rm eV}$, the accumulated neutrino flux at PeV energies is estimated to be about $(0.3\pm0.2)\times10^{-8} \rm{GeV\ cm^{-2}\ s^{-1}\ sr^{-1}} $ (per flavor) under the assumption that GRB energy production rate follows the cosmic star-formation rate and the favorable assumption about the CR diffusion coefficient. This flux is insufficient to account for the IceCube observations, but the estimate suffers from some assumptions in the calculation and thus we can not rule out this scenario at present.
description: 8 pages, 3 figures, 2 tables, to appear in ApJL
(1185) John Alder
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.
Quantum density peak clustering
Creators: name: Magano, Duarte
name: Buffoni, Lorenzo
name: Omar, Yasser
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Clustering algorithms are of fundamental importance when dealing with large unstructured datasets and discovering new patterns and correlations therein, with applications ranging from scientific research to medical imaging and marketing analysis. In this work, we introduce a quantum version of the density peak clustering algorithm, built upon a quantum routine for minimum finding. We prove a quantum speedup for a decision version of density peak clustering depending on the structure of the dataset. Specifically, the speedup is dependent on the heights of the trees of the induced graph of nearest-highers, i.e., the graph of connections to the nearest elements with higher density. We discuss this condition, showing that our algorithm is particularly suitable for high-dimensional datasets. Finally, we benchmark our proposal with a toy problem on a real quantum device.
Equivariant Perturbation in Gomory and Johnson's Infinite Group Problem. VII. Inverse semigroup theory, closures, decomposition of perturbations
Creators: name: Hildebrand, Robert
name: Köppe, Matthias
name: Zhou, Yuan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C10 (Primary), 20M18, 39B62 (Secondary)

description: In this self-contained paper, we present a theory of the piecewise linear minimal valid functions for the 1-row Gomory-Johnson infinite group problem. The non-extreme minimal valid functions are those that admit effective perturbations. We give a precise description of the space of these perturbations as a direct sum of certain finite- and infinite-dimensional subspaces. The infinite-dimensional subspaces have partial symmetries; to describe them, we develop a theory of inverse semigroups of partial bijections, interacting with the functional equations satisfied by the perturbations. Our paper provides the foundation for grid-free algorithms for the Gomory-Johnson model, in particular for testing extremality of piecewise linear functions whose breakpoints are rational numbers with huge denominators.
description: 67 pages, 21 figures; v2: changes to sections 10.2-10.3, improved figures; v3: additional figures and minor updates, add reference to IPCO abstract. CC-BY-SA
Depression and Chronic Health Conditions Among Latinos: The Role of Social Networks
Creators: name:  Soto, S.
name:  Arredondo, E.M.
name:  Elder, J.P.
name:  Quintanar, E.
name:  Madanat, H.
name:  Villodas, M.T.
Publisher: name: Springer New York LLC
Year: 2016

description: The purpose of this study was to examine the “buffering hypothesis” of social network characteristics in the association between chronic conditions and depression among Latinos. Cross-sectional self-report data from the San Diego Prevention Research Center’s community survey of Latinos were used (n = 393). Separate multiple logistic regression models tested the role of chronic conditions and social network characteristics in the likelihood of moderate-to-severe depressive symptoms. Having a greater proportion of the network comprised of friends increased the likelihood of depression among those with high cholesterol. Having a greater proportion of women in the social network was directly related to the increased likelihood of depression, regardless of the presence of chronic health conditions. Findings suggest that network characteristics may play a role in the link between chronic conditions and depression among Latinos. Future research should explore strategies targeting the social networks of Latinos to improve health outcomes.
(1187) William Fairbairn Wailes-Fairbairn
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.
Improving Gyrochronology: a new benchmark data set and age inference model
Creators: name: Van-Lane, Phil
name: Speagle, Joshua S. (沈佳士)
name: Eadie, Gwendolyn
name: Douglas, Stephanie
name: Cargile, Phillip
name: Zucker, Catherine
name: Lu, Yuxi (Lucy)
name: Angus, Ruth
Publisher: name: Zenodo
Year: 2024

description: Gyrochronology uses a star’s rotation period and location on the main sequence (MS) to predict stellar age. It is particularly useful for low mass main sequence stars, the regime in which other stellar dating methods (e.g. isochrone fitting) tend to struggle. Gyrochronology has gained popularity in recent years due to the increasing availability of photometric data, but analytical models have struggled to coherently summarize the uncertainty and intrinsic variance in the photometric time series data. Thus, we have developed a generalized machine learning-based Bayesian inference framework that captures the uncertainty and variance through a probabilistic solution. Our framework implements a normalizing flow -- a neural network-based model that optimizes the transformation of parameter distributions -- to predict rotation period distributions for stars based on their age and colour. We have successfully trained and tested the model on data from eight open clusters with promising results, indicating that a data-driven approach to gyrochronology could improve upon existing models. We have now expanded and standardized our data sample to 30 open clusters; in this talk we will present the results of cluster age recovery testing using this new model.
GRB hosts through cosmic time - VLT/X-Shooter emission-line spectroscopy of 96 GRB-selected galaxies at 0.1 < z < 3.6
Creators: name: Krühler, T.
name: Malesani, D.
name: Fynbo, J. P. U.
name: Hartoog, O. E.
name: Hjorth, J.
name: Jakobsson, P.
name: Perley, D. A.
name: Rossi, A.
name: Schady, P.
name: Schulze, S.
name: Tanvir, N. R.
name: Vergani, S. D.
name: Wiersema, K.
name: Afonso, P. M. J.
name: Bolmer, J.
name: Cano, Z.
name: Covino, S.
name: D'Elia, V.
name: Postigo, A. de Ugarte
name: Filgas, R.
name: Friis, M.
name: Graham, J. F.
name: Greiner, J.
name: Goldoni, P.
name: Gomboc, A.
name: Hammer, F.
name: Japelj, J.
name: Kann, D. A.
name: Kaper, L.
name: Klose, S.
name: Levan, A. J.
name: Leloudas, G.
name: Milvang-Jensen, B.
name: Guelbenzu, A. Nicuesa
name: Palazzi, E.
name: Pian, E.
name: Piranomonte, S.
name: Sanchez-Ramirez, R.
name: Savaglio, S.
name: Selsing, J.
name: Tagliaferri, G.
name: Vreeswijk, P. M.
name: Watson, D. J.
name: Xu, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: [Abridged] We present data and initial results from VLT/X-Shooter emission-line spectroscopy of 96 GRB-selected galaxies at 0.1
description: 33 pages, 21 figures, published in A&A 581, A125 (2015)
Quantum microscopic dynamical approaches
Creators: name: Simenel, Cedric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Nuclear physics is ideal to test and develop techniques to describe the microscopic dynamics of quantum many-body systems. At low energy, nuclear dynamics is described with non-relativistic approaches based on the mean-field approximation and its extensions. Variational principles based on the stationarity of the action are introduced to build theoretical models with different levels of approximation. In particular, the time-dependent Hartree-Fock (TDHF) equation for mean-field dynamics and its linear approximation, also known as the Random Phase Approximation (RPA), are derived. Predictions of vibrational spectra at the RPA level are presented as an application. The inclusion of beyond TDHF correlations and fluctuations are then discussed. In particular, pairing correlations are treated at the BCS and Bogoliubov levels. The Balian-Veneroni variational principle is finally introduced. In addition to provide some insight into mean-field limitations, it offers a possibility to incorporate quantum fluctuations of one-body observables with the time-dependent RPA formalism.
description: Book chapter to be published in Handbook of Nuclear Physics. 35 pages, 4 figures
The Hubbard model in strong magnetic field: Low-frequency quantum oscillations due to strong electron correlations
Creators: name: Sherman, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The density of states of the two-dimensional fermionic Hubbard model in the perpendicular homogeneous magnetic field is calculated using the strong coupling diagram technique. The density of states at the Fermi level as a function of the inverse magnetic induction oscillates, and the frequency of these oscillations increases by an order of magnitude with the change of the deviation from half-filling from small to moderate values. This frequency variation is caused by the change of Landau subbands contributing to the density -- in the former case they are at the periphery of the Landau spectrum, while in the latter case the dominant contribution is provided by bands near its center. With changing induction these groups of bands behave differently. For small deviations from half-filling the calculated oscillation frequency is comparable to that observed in quantum oscillation experiments in yttrium cuprates.
description: 11 pages, 2 figures
Erythrocyte omega-3 index, ambient fine particle exposure, and brain aging
Creators: name: Kaufman, J.D.
name: Chen, J.-C.
name: Wang, X.
name: He, K.
name: Hayden, K.M.
name: Chui, H.C.
name: Vizuete, W.
name: Espeland, M.A.
name: Whitsel, E.A.
name: Serre, M.L.
name: Xun, P.
name: Orchard, T.
name: Harris, W.S.
name: Chen, C.
Publisher: name: NLM (Medline)
Year: 2020

description: OBJECTIVE: To examine whether long-chain omega-3 polyunsaturated fatty acid (LCn3PUFA) levels modify the potential neurotoxic effects of particle matter with diameters <2.5 µm (PM2.5) exposure on normal-appearing brain volumes among dementia-free elderly women. METHODS: A total of 1,315 women (age 65-80 years) free of dementia were enrolled in an observational study between 1996 and 1999 and underwent structural brain MRI in 2005 to 2006. According to prospectively collected and geocoded participant addresses, we used a spatiotemporal model to estimate the 3-year average PM2.5 exposure before the MRI. We examined the joint associations of baseline LCn3PUFAs in red blood cells (RBCs) and PM2.5 exposure with brain volumes in generalized linear models. RESULTS: After adjustment for potential confounders, participants with higher levels of RBC LCn3PUFA had significantly greater volumes of white matter and hippocampus. For each interquartile increment (2.02%) in omega-3 index, the average volume was 5.03 cm3 (p < 0.01) greater in the white matter and 0.08 cm3 (p = 0.03) greater in the hippocampus. The associations with RBC docosahexaenoic acid and eicosapentaenoic acid levels were similar. Higher LCn3PUFA attenuated the inverse associations between PM2.5 exposure and white matter volumes in the total brain and multimodal association areas (frontal, parietal, and temporal; all p for interaction <0.05), while the associations with other brain regions were not modified. Consistent results were found for dietary intakes of LCn3PUFAs and nonfried fish. CONCLUSIONS: Findings from this prospective cohort study among elderly women suggest that the benefits of LCn3PUFAs on brain aging may include the protection against potential adverse effects of air pollution on white matter volumes.
(1190) Eleanor M E A Cookson
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.
Comparative Analysis of the Efficiency of Application of Legendre Polynomials and Trigonometric Functions to the Numerical Integration of Ito Stochastic Differential Equations
Creators: name: Kuznetsov, Dmitriy F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Mathematics (math.GM)
subject: FOS: Mathematics

description: The article is devoted to comparative analysis of the efficiency of application of Legendre polynomials and trigonometric functions to the numerical integration of Ito stochastic differential equations in the framework of the method of approximation of iterated Ito and Stratonovich stochastic integrals based on generalized multiple Fourier series. On the example of iterated Ito stochastic integrals of multiplicities 1 to 3, included in the Taylor-Ito expansion, it is shown that expansions of stochastic integrals based on Legendre polynomials are much easier and require significantly less computational costs compared to their analogues obtained using the trigonometric system of functions. The results of the article can be useful for construction of high-order strong numerical methods for Ito stochastic differential equations.
description: 40 pages. Minor changes. arXiv admin note: substantial text overlap with arXiv:1801.08862, arXiv:1801.00231, arXiv:1807.02190, arXiv:1802.00643, arXiv:1806.10705, arXiv:1712.09516, arXiv:1801.05654, arXiv:1712.08991, arXiv:1801.03195, arXiv:1712.09746, arXiv:1801.01564, arXiv:1801.01962, arXiv:1801.07248
(1184) Helen Alder
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.
Monotone Lagrangian submanifolds of $\mathbb{C}^n$ and toric topology
Creators: name: Oganesyan, Vardan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Mironov, Panov and Kotelskiy studied Hamiltonian-minimal Lagrangians inside $\mathbb{C}^n$. They associated a closed embedded Lagrangian $L$ to each Delzant polytope $P$. In this paper we develop their ideas and prove that $L$ is monotone if and only if the polytope $P$ is Fano. In some examples, we further compute the minimal Maslov numbers. Namely, let $\mathcal{N}\to T^k$ be some fibration over the $k$-dimensional torus with a fiber equal to either $S^k \times S^l$, or $S^k \times S^l \times S^m$, or $\#_5(S^{2p-1} \times S^{n-2p-2})$. We construct monotone Lagrangian embeddings $\mathcal{N} \subset \mathbb{C}^n$ with different minimal Maslov number, and therefore distinct up to Lagrangian isotopy. Moreover, we show that some of our embeddings are smoothly isotopic but not Lagrangian isotopic.
description: 41 pages; the same paper
Figure S1 from Intraspecific sequence and gene expression variation contribute little to venom diversity in sidewinder rattlesnakes (Crotalus cerastes).
Creators: name: Rautsaw, Rhett M.
name: Hofmann, Erich P.
name: Margres, Mark J.
name: Holding, Matthew L.
name: Strickland, Jason L.
name: Mason, Andrew J.
name: Rokyta, Darin R.
name: Parkinson, Christopher L.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: (A) Ratio of fang to head length between lineages showing that the North Mojave lineage is significant different from both the Colorado and Sonoran lineages. Colors correspond to phylogeny in Fig. 1. (B) Correlation of the difference in fang:head length and FST showing that toxin FST is significantly different than nontoxins. Colors correspond to toxins and nontoxins
Applications of Siegel's Lemma to a system of linear forms and its minimal points
Creators: name: Schleischitz, Johannes
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11J13, 11J82

description: Consider a real matrix $Θ$ consisting of rows $(θ_{i,1},\ldots,θ_{i,n})$, for $1\leq i\leq m$. The problem of making the system linear forms $x_{1}θ_{i,1}+\cdots+x_{n}θ_{i,n}-y_{i}$ for integers $x_{j},y_{i}$ small naturally induces an ordinary and a uniform exponent of approximation, denoted by $w(Θ)$ and $\widehat{w}(Θ)$ respectively. For $m=1$, a sharp lower bound for the ratio $w(Θ)/\widehat{w}(Θ)$ was recently established by Marnat and Moshchevitin. We give a short, new proof of this result upon a hypothesis on the best approximation integer vectors associated to $Θ$. Our conditional result extends to general $m>1$ (but may not be optimal in this case). Moreover, our hypothesis is always satisfied in particular for $m=1, n=2$ and thereby unconditionally confirms a previous observation of Jarník. We formulate our results in the more general context of approximation of subspaces of Euclidean spaces by lattices. We further establish criteria upon which a given number $\ell$ of consecutive best approximation vectors are linearly independent. Our method is based on Siegel's Lemma.
description: 29 pages
Entanglement dynamics and phase transitions of the Floquet cluster spin chain
Creators: name: Verga, Alberto D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Cluster states were introduced in the context of measurement based quantum computing. In one dimension, the cluster Hamiltonian possesses topologically protected states. We investigate the Floquet dynamics of the cluster spin chain in an external field, interacting with a particle. We explore the entanglement properties of the topological and magnetic phases, first in the integrable spin lattice case, and then in the interacting quantum walk case. We find, in addition to thermalization, dynamical phase transitions separating low- and high-entanglement nonthermal states, reminiscent of the ones present in the integrable case, but differing in their magnetic properties. The nonergodic phases are characterized by the emergence of magnetic order, persistent at long times.
description: 16 pages, 9 figures; accepted version
S1. Supplemental Methods from Intraspecific sequence and gene expression variation contribute little to venom diversity in Sidewinder Rattlesnakes (Crotalus cerastes)
Creators: name: Rautsaw, Rhett M.
name: Hofmann, Erich P.
name: Margres, Mark J.
name: Holding, Matthew L.
name: Strickland, Jason L.
name: Mason, Andrew J.
name: Rokyta, Darin R.
name: Parkinson, Christopher L.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: Continued details on the methods used to analyze the transcriptome data
The Hodge Chern character of holomorphic connections as a map of simplicial presheaves
Creators: name: Glass, Cheyne
name: Miller, Micah
name: Tradler, Thomas
name: Zeinalian, Mahmoud
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 19L10, 18G30, 58J28

description: We define a map of simplicial presheaves, the Chern character, that assigns to every sequence of composable non connection preserving isomorphisms of vector bundles with holomorphic connections an appropriate sequence of holomorphic forms. We apply this Chern character map to the Cech nerve of a good cover of a complex manifold and assemble the data by passing to the totalization to obtain a map of simplicial sets. In simplicial degree 0, this map gives a formula for the Chern character of a bundle in terms of the clutching functions. In simplicial degree 1, this map gives a formula for the Chern character of bundle maps. In each simplicial degree beyond 1, these invariants, defined in terms of the transition functions, govern the compatibilities between the invariants assigned in previous simplicial degrees. In addition to this, we also apply this Chern character to complex Lie groupoids to obtain invariants of bundles on them in terms of the simplicial data. For group actions, these invariants land in suitable complexes calculating various Hodge equivariant cohomologies. In contrast, the de Rham Chern character formula involves additional terms and will appear in a sequel paper. In a sense, these constructions build on a point of view of "characteristic classes in terms of transition functions" advocated by Raoul Bott, which has been addressed over the years in various forms and degrees, concerning the existence of formulae for the Hodge and de Rham characteristic classes of bundles solely in terms of their clutching functions.
description: 39 pages
(1186) Mary [Alder]
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.
Figure S1 from Intraspecific sequence and gene expression variation contribute little to venom diversity in Sidewinder Rattlesnakes (Crotalus cerastes)
Creators: name: Rautsaw, Rhett M.
name: Hofmann, Erich P.
name: Margres, Mark J.
name: Holding, Matthew L.
name: Strickland, Jason L.
name: Mason, Andrew J.
name: Rokyta, Darin R.
name: Parkinson, Christopher L.
Publisher: name: The Royal Society
Year: 2019
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60408 Genomics

description: (A) Ratio of fang to head length between lineages showing that the North Mojave lineage is significant different from both the Colorado and Sonoran lineages. Colors correspond to phylogeny in Fig. 1. (B) Correlation of the difference in fang:head length and FST showing that toxin FST is significantly different than nontoxins. Colors correspond to toxins and nontoxins
Ανασκόπηση σχεδιασμού πλατφόρμας κυκλικής οικονομίας και επαλήθευση πλήρωσης των απαιτήσεων για την ανάπτυξή της
Creators: name: Διάφας, Γεώργιος
name: Μερντάνι, Ανέστης
name: Ταλιουρίδης, Ιωάννης
name: Πλυμένος-Παπαγέωργας, Ιάσωνας
name: Παπαχαραλάμπους, Αλέξανδρος
Publisher: name: Zenodo
Year: 2023
Subjects: πλατφόρμα, κυκλική οικονομία, οικονομία διαμοιρασμού, βιωσιμότητα, λειτουργικότητες, αρχιτεκτονική συστήματος, βάση δεδομένων, διεπαφή

description: Το EFFICIOUS είναι μία online πλατφόρμα κυκλικής οικονομίας η οποία φέρνει σε επαφή εταιρείες που επιθυμούν να ανταλλάξουν μη χρήσιμα προϊόντα (για τις ίδιες), υπηρεσίες ή εξοπλισμό. Εκτός από τις συναλλαγές πόρων μεταξύ των εταιρειών, η πλατφόρμα προσφέρει και τη δυνατότητα ανακύκλωσης ή δωρεάς σε φιλανθρωπικές οργανώσεις. H δημιουργία της ηλεκτρονικής πλατφόρμας περνάει από διαφορετικά στάδια: την ανάλυση των βασικών απαιτήσεων, των λειτουργικοτήτων και των θεματικών αντικειμένων πλατφόρμας, την ανάπτυξη πλατφόρμας και δημιουργία βάσεως δεδομένων, και την ανάπτυξη της διεπαφής (UI/UX). Στα παραπάνω στάδια προκύπτουν οι απαιτήσεις για την ανάπτυξη μιας ολοκληρωμένης πλατφόρμας που λειτουργεί αποτελεσματικά. Σε αυτή τη δημοσίευση θα επαληθευτεί ότι το λογισμικό της πλατφόρμας κυκλικής οικονομίας EFFICIOUS που σχεδιάστηκε και αναπτύχθηκε πληροί τις απαιτήσεις.
Two-point one-dimensional $δ$-$δ^\prime$ interactions: non-abelian addition law and decoupling limit
Creators: name: Gadella, M.
name: Guilarte, J. Mateos
name: Munoz-Castaneda, J. M.
name: Nieto, L. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this contribution to the study of one dimensional point potentials, we prove that if we take the limit $q\to 0$ on a potential of the type $v_0δ({y})+{2}v_1δ'({y})+w_0δ({y}-q)+ {2} w_1δ'({y}-q)$, we obtain a new point potential of the type ${u_0} δ({y})+{2 u_1} δ'({y})$, when $ u_0$ and $ u_1$ are related to $v_0$, $v_1$, $w_0$ and $w_1$ by a law having the structure of a group. This is the Borel subgroup of $SL_2({\mathbb R})$. We also obtain the non-abelian addition law from the scattering data. The spectra of the Hamiltonian in the exceptional cases emerging in the study are also described in full detail. It is shown that for the $v_1=\pm 1$, $w_1=\pm 1$ values of the $δ^\prime$ couplings the singular Kurasov matrices become equivalent to Dirichlet at one side of the point interaction and Robin boundary conditions at the other side.
(1182) James Dempsey
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.
Space and time transformations with a minimal length
Creators: name: Bosso, Pasquale
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Phenomenological studies of quantum gravity have proposed a modification of the commutator between position and momentum in quantum mechanics so to introduce a minimal uncertainty in position in quantum mechanics. Such a minimal uncertainty and the consequent minimal measurable length have important consequences on the dynamics of quantum systems. In the present work, we show that such consequences go beyond dynamics, reaching the definition of quantities such as energy, momentum, and the same Hamiltonian. Furthermore, since the Hamiltonian, defined as the generator of time evolution, results to be bounded, a minimal length implies a minimal time.
description: 9 pages, 3 figures