cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A general theory of DNA-mediated and other valence-limited interactions
Creators: name: Varilly, Patrick
name: Angioletti-Uberti, Stefano
name: Mognetti, Bortolo M.
name: Frenkel, Daan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a general theory for predicting the interaction potentials between DNA-coated colloids, and more broadly, any particles that interact via valence-limited ligand-receptor binding. Our theory correctly incorporates the configurational and combinatorial entropic factors that play a key role in valence-limited interactions. By rigorously enforcing self-consistency, it achieves near-quantitative accuracy with respect to detailed Monte Carlo calculations. With suitable approximations and in particular geometries, our theory reduces to previous successful treatments, which are now united in a common and extensible framework. We expect our tools to be useful to other researchers investigating ligand-mediated interactions. A complete and well-documented Python implementation is freely available at http://github.com/patvarilly/DNACC .
description: 18 pages, 10 figures
Transportation of U.S. Grains: A Modal Share Analysis, 1978-2016 Update
Creators: name: Chang, Kuo-Liang “Matt”
name: Caffarelli, Peter
name: Gastelle, Jesse
name: Sparger, Adam
name: Chang, Kuo-Liang “Matt”
name: Caffarelli, Peter
name: Gastelle, Jesse
name: Sparger, Adam
Publisher: name: Unknown
Year: 2019
Subjects: subject: Crop Production/Industries
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business
subject: Research Methods/ Statistical Methods

description: This report provides a breakout by mode of corn, wheat, soybeans, sorghum, and barley movements to either domestic markets or U.S. ports for export between 1978 and 2016. It is the eleventh update of an initial modal share study completed in 1992. The purpose of this series of reports is to provide the latest information about changes and trends in the relative competitiveness and efficiency among the different transportation modes in moving grain. Estimates of the tonnages (and shares) of grain railed, barged, and trucked are developed from a variety of secondary sources. This data can be used to identify trends and implications on transportation from factors, such as changes in production volumes and commodity mix, as well as changes in the relative demand for U.S. grain for domestic purposes versus export.
Stochastic Equicontinuity in Nonlinear Time Series Models
Creators: name: Hagemann, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: In this paper I provide simple and easily verifiable conditions under which a strong form of stochastic equicontinuity holds in a wide variety of modern time series models. In contrast to most results currently available in the literature, my methods avoid mixing conditions. I discuss several applications in detail.
description: 10 pages
Superaging correlation function and ergodicity breaking for Brownian motion in logarithmic potentials
Creators: name: Dechant, A.
name: Lutz, E.
name: Kessler, D. A.
name: Barkai, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider an overdamped Brownian particle moving in a confining asymptotically logarithmic potential, which supports a normalized Boltzmann equilibrium density. We derive analytical expressions for the two-time correlation function and the fluctuations of the time-averaged position of the particle for large but finite times. We characterize the occurrence of aging and nonergodic behavior as a function of the depth of the potential, and support our predictions with extensive Langevin simulations. While the Boltzmann measure is used to obtain stationary correlation functions, we show how the non-normalizable infinite covariant density is related to the super-aging behavior.
description: 16 pages, 6 figures
title: Materialmangel bleibt auch 2022 Hauptproblem der Bauwirtschaft: Interview
Creators: name: Pagenhardt, Laura
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022

description: DIW Wochenbericht, 89 (2022), 1/2, S. 14
The kagome antiferromagnet: a chiral topological spin liquid ?
Creators: name: Messio, Laura
name: Bernu, Bernard
name: Lhuillier, Claire
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Inspired by the recent discovery of a new instability towards a chiral phase of the classical Heisenberg model on the kagome lattice, we propose a specific chiral spin liquid that reconciles different, well-established results concerning both the classical and quantum models. This proposal is analyzed in an extended mean-field Schwinger boson framework encompassing time reversal symmetry breaking phases which allows both a classical and a quantum phase description. At low temperatures, we find quantum fluctuations favor this chiral phase, which is stable against small perturbations of second and third neighbor interactions. For spin-1/2 this phase may be, beyond mean-field, a chiral gapped spin liquid. Such a phase is consistent with Density Matrix Renormalization Group results of Yan et al. (Science 322, 1173 (2011)). Mysterious features of the low lying excitations of exact diagonalization spectra also find an explanation in this framework. Moreover, thermal fluctuations compete with quantum ones and induce a transition from this flux phase to a planar zero flux phase at a non zero value of the renormalized temperature (T/S^2), reconciling these results with those obtained for the classical system.
description: 4 pages, 4 figures, 1 table
D-JRP22-WP2.3 Validation of Magnetic Capture Real-time PCR assay.
Creators: name: Rebecca, Davidson
Publisher: name: Zenodo
Year: 2021
Subjects: MEME, Echinococcus multilocularis, detection method, Magnetic capture Realtime PCR

description: This deliverable describes the work carried out to establish the Magnetic capture Realtime PCR assay for Echicococcus multilocularis in the different laboratories in the project, verification of the method at each laboratory and a subsequent proficiency test sent to all partners.
title: Niccolò Montalbano
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Niccolò Montalbano as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Mathematical Conception of "Phenomenological" Equilibrium Thermodynamics
Creators: name: Maslov, V. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In the paper, the principal aspects of the mathematical theory of equilibrium thermodynamics are distinguished. It is proved that the points of degeneration of a Bose gas of fractal dimension in the momentum space coincide with critical points or real gases, whereas the jumps of critical indices and the Maxwell rule are related to the tunnel generalization of thermodynamics. Semiclassical methods are considered for the tunnel generalization of thermodynamics and also for the second and ultrasecond quantization (operators of creation and annihilation of pairs). To every pure gas there corresponds a new critical point of the limit negative pressure below which the liquid passes to a dispersed state (a foam). Relations for critical points of a homogeneous mixture of pure gases are given in dependence on the concentration of gases.
description: 37 pages, 9 figure, more precise explanations, more references. arXiv admin note: substantial text overlap with arXiv:1202.5257
Low Temperature Measurements by Infrared Spectroscopy in CoFe$_2$O$_4$ Ceramic
Creators: name: Bujakiewicz-Korońska, Renata
name: Hetmańczyk, Łukasz
name: Garbarz-Glos, Barbara
name: Budziak, Andrzej
name: Kalvane, Anna
name: Bormanis, Karlis
name: Druzbicki, Kacper
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper results of new far-infrared and middle-infrared measurements (wavenumber range of 4000cm-1 - 100cm-1) in the range of the temperature from 300K to 8K of the CoFe2O4 ceramic are presented. The bands positions and their shapes are the same in the wide temperature range. The quality of the sample was investigated by X-ray, EDS and EPMA studies. The CoFe2O4 reveals the cubic structure (Fd-3m) in the temperature range from 85K to 360 K without any traces of distortion. On the current level of knowledge the polycrystalline CoFe2O4 does not exhibit phase transition in the temperature range from 8 K to 300 K.
description: 10 pages, 6 figures
Improving object detection using 3D spatial relationships
Creators: name: Southey, Tristram
Publisher: name: University of British Columbia
Year: 2013

description: Reliable object detection is one of the most significant hurdles that must be overcome to develop useful household robots. Overall, the goal of this work is to demonstrate how effective 3D qualitative spatial relationships can be for improving object detection. We show that robots can utilize 3D qualitative spatial relationships to improve object detection by differentiating between true and false positive detections. The main body of the thesis focuses on an approach for improving object detection rates that identifies the most likely subset of 3D detections using seven types of 3D relationships and adjusts detection confidence scores to improve the average precision. These seven 3D qualitative spatial relationships are adapted from 2D qualitative spatial reasoning techniques. We learn a model for identifying the most likely subset using a structured support vector machine [Tsochantaridis et al., 2004] from examples of 3D layouts of objects in offices and kitchens. We produce 3D detections from 2D detections using a fiducial marker and images of a scene and show our model is successful at significantly improving overall detection rates on real world scenes of both offices and kitchens. After the real world results, we test our method on synthetic detections where the properties of the 3D detections are controlled. Our approach improves on the model it was based upon, that of [Desai et al., 2009], by utilizing a branch and bound tree search to improve both training and inference. Our model relies on sufficient true positive detections in the training data or good localization of the true positive detections. Finally, we analyze the cumulative benefits of the spatial relationships and determine that the most effective spatial relationships depend on both the scene type and localization accuracy. We demonstrate that there is no one relationship that is sufficient on its own or always outperforms others and that a mixture of relationships is always useful.
title: Bauwirtschaft: Hohe Preisdynamik setzt sich fort – Geschäfte laufen trotz Corona-Krise gut
Creators: name: Gornig, Martin
name: Michelsen, Claus
name: Pagenhardt, Laura
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2022
Subjects: subject: E32 Business Fluctuations; Cycles
subject: E66 General Outlook and Conditions
subject: Construction industry
subject: residential construction
subject: public infrastructure
subject: economic outlook

description: Die Umsätze der Bauwirtschaft werden in diesem und im kommenden Jahr weiter kräftig wachsen. Insgesamt rechnet das DIW Berlin mit einem nominalen Anstieg des Bauvolumens um fast 13 Prozent im Jahr 2022 und weiteren gut sechs Prozent im Jahr 2023 auf dann 585 Milliarden Euro. Im abgelaufenen Jahr wurde ein Plus von gut zehn Prozent auf 488 Milliarden Euro erreicht, was einem Anteil von etwa 15 Prozent am Bruttoinlandsprodukt (BIP) entspricht. Das zeigt, dass die Baunachfrage trotz Corona-Pandemie ungebrochen ist. Andererseits dürften aber vor allem die Preise für Bauleistungen nach dem deutlichen Plus im Jahr 2021 auch im laufenden Jahr stark zulegen. Dies ist zum einen auf die Entwicklung der Produzentenpreise zurückzuführen: Diese steigen derzeit so schnell wie seit Jahrzehnten nicht mehr. Zum anderen ist der Bauüberhang – die Zahl der noch nicht fertiggestellten genehmigten Bauvorhaben – weiterhin hoch und auch die öffentliche Hand weitet ihre Investitionsbudgets aus. Dies eröffnet den Unternehmen der Baubranche weitere Spielräume für Preiserhöhungen. Gleichwohl dürften die steigenden Preise auch in geringerer realer Bautätigkeit münden. Insbesondere der öffentlichen Hand dürfte es damit deutlich schwerer fallen, die ambitionierten Ziele im Bereich des Infrastrukturausbaus und der Wohnungsversorgung zu erreichen.
description: DIW Wochenbericht, 89 (2022), 1/2, S. 3-13
Definability of linear equation systems over groups and rings
Creators: name: Dawar, Anuj
name: Kopczynski, Eryk
name: Holm, Bjarki
name: Grädel, Erich
name: Pakusa, Wied
Publisher: name: arXiv
Year: 2012
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: Motivated by the quest for a logic for PTIME and recent insights that the descriptive complexity of problems from linear algebra is a crucial aspect of this problem, we study the solvability of linear equation systems over finite groups and rings from the viewpoint of logical (inter-)definability. All problems that we consider are decidable in polynomial time, but not expressible in fixed-point logic with counting. They also provide natural candidates for a separation of polynomial time from rank logics, which extend fixed-point logics by operators for determining the rank of definable matrices and which are sufficient for solvability problems over fields. Based on the structure theory of finite rings, we establish logical reductions among various solvability problems. Our results indicate that all solvability problems for linear equation systems that separate fixed-point logic with counting from PTIME can be reduced to solvability over commutative rings. Moreover, we prove closure properties for classes of queries that reduce to solvability over rings, which provides normal forms for logics extended with solvability operators. We conclude by studying the extent to which fixed-point logic with counting can express problems in linear algebra over finite commutative rings, generalising known results on the logical definability of linear-algebraic problems over finite fields.
title: Radiation Dose Surveys for Adult Radiography Examinations in two Nigerian Hospitals
Creators: name: Joseph, Dlama
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Quality assurance
subject: Radiation safety
subject: RIS
subject: Radioprotection / Radiation dose

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To determine the radiation dose received by adult patients during radiography examinations in two major Nigerian...
Symmetry breaking and restoration for interacting scalar and gauge fields in Lifshitz type theories
Creators: name: Farakos, K.
name: Metaxas, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the one-loop effective potential at zero and finite temperature in field theories with anisotropic space-time scaling, with critical exponent $z=2$, including both scalar and gauge fields. Depending on the relative strength of the coupling constants for the gauge and scalar interactions, we find that there is a symmetry breaking term induced at one-loop at zero temperature and we find symmetry restoration through a first-order phase transition at high temperature.
description: 12 pages, 2 figures, final version accepted in Phys. Lett
THE IMPACT OF CORPORATE GOVERNANCE ON TAX AGGRESSIVENESS: EVIDENCE ON CONSUMER GOODS SECTOR IN INDONESIA
Creators: name: DEWI PUDJI RAHAYU
name: BAGUS PAMUNGKAS WIBOWO
Publisher: name: Zenodo
Year: 2023
Subjects: Agency Theory, Corporate Governance, Tax Aggressiveness, Board Size, Board Independence, Board Diversity, Audit Committee.

description: Abstract
Based on agency theory, this study aims to determine the relationship between corporate governance and tax aggressiveness. Board size, board independence, board diversity, and audit committee are some of the corporate governance variables used. Effective tax rate is used to test tax aggressiveness. The research sample and population are the consumer goods industry listed on the Indonesian stock exchange from 2017 to 2021. The purposive sample selection method resulted in 45 companies with 216 observations. To overcome the problem of heteroscedasticity, this study uses panel data with the generalized least square method. STATA statistical tools are also used. The results showed that board independence and audit committee are negatively correlated with tax aggressiveness. There is no relationship between tax aggressiveness and board size and diversity. This research will add to the literature on tax aggressiveness by showing that organizations that have independent boards and audit committees can significantly reduce tax aggressive behavior. Companies benefit from this research in several ways: it shows how effective governance is, provides investors with good investment options, and provides suggestions for further research.
Humans, resources, or what else?
Creators: name: Neri, Massimo
name: Gianecchini, Martina
name: Scapolan, Anna Chiara
name: Barbini, Francesco Maria
name: Zamarian, Marco
name: Pompa, Leonardo
name: Rinaldini, Matteo
name: Vecchio, Luca
name: Del Punta, Riccardo
name: Masino, Giovanni
name: Perulli, Angela
name: Maggi, Bruno
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2021
Subjects: ING-IND/35 Ingegneria economico-gestionale
IUS/07 Diritto del lavoro
M-PSI/06 Psicologia del lavoro e delle organizzazioni
SECS-P/08 Economia e gestione delle imprese
SECS-P/10 Organizzazione aziendale
SPS/09 Sociologia dei processi economici e del lavoro

description: The literature on human resource management shows growing attention to the “personal” dimension of the subject-organization relationship, while the subjectivist contributions do not disregard the discussion on managerial implications. This ebook proposes a reflection on this apparent convergence. It discusses the internal criticism arising from the mainstream literature and the criticism originating from different disciplinary perspectives (organization, sociology of science, psychology of work, and labor law). Alternatives to the idea of human resources are proposed through the reflection on the goals of the processes of actions and decisions, the ontological reflection on the idea of man, and the epistemological reflection on the choices that allow overcoming the objectivism/subjectivism antinomy.
Birth, Death and Flight: A Theory of Malthusian Flocks
Creators: name: Toner, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: I study "Malthusian Flocks": moving aggregates of self-propelled entities (e.g., organisms, cytoskeletal actin, microtubules in mitotic spindles) that reproduce and die. Long-ranged order (i.e., the existence of a non-zero average velocity $\ne \vec 0$) is possible in these systems, even in spatial dimension $d=2$. Their spatio-temporal scaling structure can be determined exactly in all spatial dimensions; furthermore, they lack both the longitudinal sound waves and the giant number fluctuations found in immortal flocks. Number fluctuations are very {\it persistent}, and propagate along the direction of flock motion, but at a different speed.
description: 4 pages; revised in response to referee comments
An undescribed jatrophane diterpenoid along with known compounds from Euphorbia sororia with tumour multidrug resistance reversal ability
Creators: name: Yang, Hequn
name: Tang, Dan
name: Zhao, Jiangyu
name: Aisa, Haji Akber
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biophysics
subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: An undescribed jatrophane diterpenoid, euphosorophane N (1), along with thirteen known jatrophane diterpenoids (2-14), were isolated from the fructus of Euphorbia sororia, and their chemical structures were elucidated based on extensive spectroscopic analysis, including HRESIMS, 1D and 2D NMR data. The X-ray crystallographic analysis was used to confirm the absolute configurations of compound 6 for the first time. These jatrophane diterpenoids were evaluated for their multidrug resistance (MDR) reversal ability on the cancer cell line HCT-8/Taxol by MTT assay and compounds 3, 5, and 9 revealed promising MDR reversal ability compared to verapamil (VRP).
title: Thyroid nodule category of Bethesda IV, surgery or US follow-up?
Creators: name: Lloret Del Hoyo, Juan
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Thyroid / Parathyroids
subject: Ultrasound
subject: Biopsy
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Thyroid nodules are usually assessed by ultrasound examination in order to determine which of them can be left alone and which ones show indeterminate or suspicious characteristics and need to be clinically approached by ultrasound-guided Fine...
Black holes without spacelike singularities
Creators: name: Dafermos, Mihalis
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It is shown that for small, spherically symmetric perturbations of asymptotically flat two-ended Reissner-Nordström data for the Einstein-Maxwell-real scalar field system, the boundary of the dynamic spacetime which evolves is globally represented by a bifurcate null hypersurface across which the metric extends continuously. Under additional assumptions, it is shown that the Hawking mass blows up identically along this bifurcate null hypersurface, and thus the metric cannot be extended twice differentiably, in fact, cannot be extended in a weaker sense characterized at the level of the Christoffel symbols. The proof combines estimates obtained in previous work with an elementary Cauchy stability argument. There are no restrictions on the size of the support of the scalar field, and the result applies to both the future and past boundary of spacetime. In particular, it follows that for an open set in the moduli space of solutions around Reissner-Nordström, there is no spacelike component of either the future or the past singularity.
description: 30 pages, 9 figures, v2 discussion of the cosmological case expanded, minor corrections, references updated
title: Management of B3 breast lesions completely removed with vacuum-assisted biopsy, can Contrast-enhanced Digital Mammography help?
Creators: name: BICCHIERAI, GIULIA
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Breast
subject: Mammography
subject: Digital radiography
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast lesions classified as lesions of uncertain malignant potential (B3 lesions) rapresent a wide range of non-malignant breast pathologies with a borderline histological spectrum and a variable risk of associated malignancy, which may predispose...
On multi-robot area and boundary coverage
Creators: name: Fazli, Pooyan
Publisher: name: University of British Columbia
Year: 2013

description: Distributed coverage aims to deploy a team of robots to move around a target area to perform sensing, monitoring, data collection, search, or distributed servicing tasks. This thesis investigates three variations of the coverage problem. First, we address the multi-robot single coverage of a target area. The aim is to guarantee that every accessible point in the area is visited in a finite time. The proposed algorithm supports heterogeneous robots having various maximal speeds, and is robust to robot failure. It also balances the workload distribution among the robots based on their maximal speeds. The obtained results on the coverage time are scalable to workspaces of different sizes, and robots of varied visual ranges. Second, we tackle the multi-robot repeated coverage of a target area. The objective is to visit all the accessible points of the area repeatedly over time, while optimizing some performance criteria. We introduce four repeated coverage algorithms, and evaluate them under a comprehensive set of metrics including the sum of the paths/tours generated for the robots, the frequency of visiting the points in the target area, and the degree of balance in workload distribution among the robots. We also investigate the effects of environment representation, and the robots' visual range on the performance of the proposed algorithms. The results can be used as a framework for choosing an appropriate combination of repeated coverage algorithm, environment representation, and the robots’ visual range based on the particular workspace and the metric to be optimized. Third, we focus on the multi-robot repeated coverage of the boundaries of a target area and the structures inside it. Events may occur at any position on the boundaries, and the robots are not a priori aware of the event distribution. The goal is to maximize the total detection reward of the events. The reward a robot receives for detecting an event depends on how early the event is detected. To this end, we introduce an online, distributed algorithm and investigate the effects of robots' visual range, communication among the robots, and the event frequency on the performance of the algorithm.
High energy particle colliders: past 20 years, next 20 years and beyond
Creators: name: Shiltsev, Vladimir D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Particle colliders for high energy physics have been in the forefront of scientific discoveries for more than half a century. The accelerator technology of the collider has progressed immensely, while the beam energy, luminosity, facility size and the cost have grown by several orders of magnitude. The method of colliding beams has not fully exhausted its potential but its pace of progress has greatly slowed down. In this paper we very briefly review the method and the history of colliders, discuss in detail the developments over the past two decades and the directions of the R&D toward near future colliders which are currently being explored. Finally, we make an attempt to look beyond the current horizon and outline the changes in the paradigm required for the next breakthroughs.
description: accepted for publication in Physics-Uspekhi (Advances in Physical Sciences) 29 pp, 7 figs
Stability of nonstationary states of spin-2 Bose-Einstein condensates
Creators: name: Mäkelä, H.
name: Lundh, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The dynamical stability of nonstationary states of homogeneous spin-2 rubidium Bose-Einstein condensates is studied. The states considered are such that the spin vector remains parallel to the magnetic field throughout the time evolution, making it possible to study the stability analytically. These states are shown to be stable in the absence of an external magnetic field, but they become unstable when a finite magnetic field is introduced. It is found that the growth rate and wavelength of the instabilities can be controlled by tuning the strength of the magnetic field and the size of the condensate.
description: 10 pages, 4 figures. v2: Figs 1 and 4 revised, references added
Singular values of the Dirac operator in dense QCD-like theories
Creators: name: Kanazawa, Takuya
name: Wettig, Tilo
name: Yamamoto, Naoki
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the singular values of the Dirac operator in dense QCD-like theories at zero temperature. The Dirac singular values are real and nonnegative at any nonzero quark density. The scale of their spectrum is set by the diquark condensate, in contrast to the complex Dirac eigenvalues whose scale is set by the chiral condensate at low density and by the BCS gap at high density. We identify three different low-energy effective theories with diquark sources applicable at low, intermediate, and high density, together with their overlapping domains of validity. We derive a number of exact formulas for the Dirac singular values, including Banks-Casher-type relations for the diquark condensate, Smilga-Stern-type relations for the slope of the singular value density, and Leutwyler-Smilga-type sum rules for the inverse singular values. We construct random matrix theories and determine the form of the microscopic spectral correlation functions of the singular values for all nonzero quark densities. We also derive a rigorous index theorem for non-Hermitian Dirac operators. Our results can in principle be tested in lattice simulations.
description: 3 references added, version published in JHEP
title: Use of X-ray in anterior knee pain: a relatively forgotten but important diagnostic tool
Creators: name: Pasetto, Stefano
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Musculoskeletal soft tissue
subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Conventional radiography
subject: Observer performance
subject: Arthritides
subject: Demineralisation-Bone
subject: Inflammation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Anterior knee pain is the most common knee complaint. It may be caused by a large variety of injuries of soft tissue or osseous abnormalities. Our purpose here is to describe how X-ray can be helpful in precisely defining the origin of the patient's...
The local dark matter phase-space density and impact on WIMP direct detection
Creators: name: Catena, Riccardo
name: Ullio, Piero
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new determination of the local dark matter phase-space density. This result is obtained implementing, in the limit of isotropic velocity distribution and spherical symmetry, Eddington's inversion formula, which links univocally the dark matter distribution function to the density profile, and applying, within a Bayesian framework, a Markov Chain Monte Carlo algorithm to sample mass models for the Milky Way against a broad and variegated sample of dynamical constraints. We consider three possible choices for the dark matter density profile, namely the Einasto, NFW and Burkert profiles, finding that the velocity dispersion, which characterizes the width in the distribution, tends to be larger for the Burkert case, while the escape velocity depends very weakly on the profile, with the mean value we obtain being in very good agreement with estimates from stellar kinematics. The derived dark matter phase-space densities differ significantly--most dramatically in the high velocity tails--from the model usually taken as a reference in dark matter detection studies, a Maxwell-Boltzmann distribution with velocity dispersion fixed in terms of the local circular velocity and with a sharp truncation at a given value of the escape velocity. We discuss the impact of astrophysical uncertainties on dark matter scattering rates and direct detection exclusion limits, considering a few sample cases and showing that the most sensitive ones are those for light dark matter particles and for particles scattering inelastically. As a general trend, when adopting a self-consistent phase-space density, we find that rates are larger, and hence exclusion limits stronger, than with the standard Maxwell-Boltzmann approximation. Tools for applying our result on the local dark matter phase-space density to other dark matter candidates or experimental setups are provided.
description: 24 pages, 11 figures. Revised to match version accepted in JCAP. References updated
title: Typical MR patterns of spondylodiscitis : A Pictorial review.
Creators: name: Ishchenko, Michael
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neuroradiology spine
subject: Musculoskeletal spine
subject: MR
subject: Diagnostic procedure
subject: Education
subject: Abscess
subject: Inflammation
subject: Infection

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To know the epidemiology, etiology, symptoms of spondylodiscitis 2. To review the typical MR imaging findings of infection of the spinal column 3. To understand role of MRI in diagnostics of...
title: Non Adenomatous Lesions of the Adrenal Gland: CT and PET/CT Findings
Creators: name: Casalini Vañek, Emilia
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Lymphoma
subject: Cysts
subject: Cancer
subject: Screening
subject: PET-CT
subject: CT
subject: Abdomen

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe the main differential diagnosis of non-adenomatous adrenal masses Identify the main imaging findings of these entities To report the infrecuent cases we have...
Exploring the unusually high black hole-to-bulge mass ratios in NGC4342 and NGC4291: the asynchronous growth of bulges and black holes
Creators: name: Bogdan, Akos
name: Forman, William R.
name: Zhuravleva, Irina
name: Mihos, J. Christopher
name: Kraft, Ralph P.
name: Harding, Paul
name: Guo, Qi
name: Li, Zhiyuan
name: Churazov, Eugene
name: Vikhlinin, Alexey
name: Nulsen, Paul E. J.
name: Schindler, Sabine
name: Jones, Christine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study two nearby, early-type galaxies, NGC4342 and NGC4291, that host unusually massive black holes relative to their low stellar mass. The observed black hole-to-bulge mass ratios of NGC4342 and NGC4291 are ~6.9% and ~1.9%, respectively, which significantly exceed the typical observed ratio of ~0.2%. As a consequence of the exceedingly large black hole-to-bulge mass ratios, NGC4342 and NGC4291 are ~5.1 sigma and ~3.4 sigma outliers from the M_BH - M_bulge scaling relation, respectively. In this paper, we explore the origin of the unusually high black hole-to-bulge mass ratio. Based on Chandra X-ray observations of the hot gas content of NGC4342 and NGC4291, we compute gravitating mass profiles, and conclude that both galaxies reside in massive dark matter halos, which extend well beyond the stellar light. The presence of dark matter halos around NGC4342 and NGC4291 and a deep optical image of the environment of NGC4342 indicate that tidal stripping, in which >90% of the stellar mass was lost, cannot explain the observed high black hole-to-bulge mass ratios. Therefore, we conclude that these galaxies formed with low stellar masses, implying that the bulge and black hole did not grow in tandem. We also find that the black hole mass correlates well with the properties of the dark matter halo, suggesting that dark matter halos may play a major role in regulating the growth of the supermassive black holes.
description: 9 pages, 6 figures, accepted for publication in ApJ
title: A pictorial review of thyroid biopsy complications
Creators: name: Pasetto, Stefano
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Haemorrhage
subject: Biopsy
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Interventional non-vascular
subject: Inflammation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Core needle biopsy (CNB) has been suggested as a complementary diagnostic method to fine-needle aspiration in patients with thyroid nodules. US-guided CNB of thyroid lesions was found in a large population to be a safe procedure with a low...
title: Utility of Cone Beam Computed Tomography in the monitoring of fractures
Creators: name: Trueba, Ricardo
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Musculoskeletal bone
subject: Cone beam CT
subject: Equipment
subject: Trauma

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Theobjective is to illustrate the usefulness of the Cone Beam Computed Tomography (CBCT) in the detection of fractures and their follow-up, being able to assess the state of consolidation trying to predict the evolution towards complete, incomplete...
Statistical Supplement to Household Food Security in the United States in 2020
Creators: name: Coleman-Jensen, Alisha
name: Rabbitt, Matthew P.
name: Gregory, Christian A.
name: Singh, Anita
name: Coleman-Jensen, Alisha
name: Rabbitt, Matthew P.
name: Gregory, Christian A.
name: Singh, Anita
Publisher: name: Unknown
Year: 2021
Subjects: subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Institutional and Behavioral Economics
subject: Public Economics
subject: Research Methods/ Statistical Methods
subject: Food security
subject: food insecurity
subject: food spending
subject: food pantry
subject: soup kitchen
subject: emergency kitchen
subject: material well-being
subject: SNAP
subject: Supplemental Nutrition Assistance Program
subject: Food Stamp Program
subject: National School Lunch Program
subject: WIC
subject: Special Supplemental Nutrition Program for Women, Infants, and Children

description: This supplement provides statistics that complement those in Household Food Security in the United States in 2020 (ERR-298). That research report provides the primary national statistics on household food security, food spending, and use of Federal food and nutrition assistance programs by food-insecure households. Additional statistics here cover component items of the household food security measure, the frequency of occurrence of food-insecure conditions, and selected statistics on house-hold food security, food spending, and use of Federal and community food and nutrition assistance programs.
Restricted Invertibility and the Banach-Mazur distance to the cube
Creators: name: Youssef, Pierre
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: We prove a normalized version of the restricted invertibility principle obtained by Spielman-Srivastava. Applying this result, we get a new proof of the proportional Dvoretzky-Rogers factorization theorem recovering the best current estimate. As a consequence, we also recover the best known estimate for the Banach-Mazur distance to the cube: the distance of every n-dimensional normed space from \ell_{\infty}^n is at most (2n)^(5/6). Finally, using tools from the work of Batson-Spielman-Srivastava, we give a new proof for a theorem of Kashin-Tzafriri on the norm of restricted matrices.
description: to appear in Mathematika
title: Splenic blood flow in advanced chronic liver disease: correlation with cirrhosis stages.
Creators: name: Pasetto, Stefano
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cirrhosis
subject: Comparative studies
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Vascular
subject: Spleen
subject: Liver

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cirrhosis is a late stage of scarring (fibrosis) of the liver caused by many forms of liver diseases and conditions, such as hepatitis and chronic alcoholism. The diagnosis and prognosis in cirrhosis of liver mostly depend upon the Child’s grading...
title: Verification of effects on shape reproducibility of blood vessels located overlap streak artifacts by iterative reconstruction
Creators: name: ogawa, ryo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Image verification
subject: Artifacts
subject: Comparative studies
subject: CT
subject: Vascular
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In recent years, hybrid iterative reconstruction (HIR) and model-base iterative reconstruction (MBIR) are used clinically as one method of radiation dose reduction in computed tomography (CT). Detailed image reconstruction method is different in per...
title: Optimal acquisition window size of the phase-based respiratory gating and its feasibility on the SiPM-based FDG-PET/CT
Creators: name: Sato, Ryotaro
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Respiratory system
subject: Lung
subject: Liver
subject: PET-CT
subject: Diagnostic procedure
subject: Cancer
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Respiratory motion can make detecting tumors difficult in 18 F-fluorodeoxyglucose positron emission tomography with computed tomography (FDG-PET/CT) imaging. Respiratory motion causes image blurring, especially in the lower lung or upper abdominal...
Benchmarking the performance of application startup for AspectJ-aware Java virtual machines
Creators: name: Selby, Vincent
Publisher: name: University of British Columbia
Year: 2013

description: In [11] and [12], Golbeck implemented AspectJ Virtual Machine, an in-VM, lazy aspect weaver to improve the startup performance of applications containing aspects. In this work, it was important to clearly show an improvement of performance over earlier aspect weavers at startup. However, the lack of large applications using aspects and the complexity of startup benchmarking make such performance evaluation difficult. This thesis examines these challenges and presents our approach to application startup benchmarking. Using this approach, it clearly identifies previously unknown performance differences between aspect-aware Virtual Machine (VM) implementations.
Spatial STIT Tessellations -- Distributional Results for I-Segments
Creators: name: Thaele, Christoph
name: Weiss, Viola
name: Nagel, Werner
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60D05 (Primary) 60G55, 60E05 (Secondary)

description: Three-dimensional random tessellations that are stable under iteration (STIT tessellations) are considered. They arise as a result of subsequent cell division, which implies that their cells are not face-to-face. The edges of the cell-dividing polygons are the so-called I-segments of the tessellation. The main result is an explicit formula for the distribution of the number of vertices in the relative interior of the typical I-segment. On the way of its proof other distributional identities for the typical as well as for the length-weighted typical I-segment are obtained. They provide new insight into the spatio-temporal construction process.
D-term Dynamical Supersymmetry Breaking Generating Split N=2 Gaugino Masses of Mixed Majorana-Dirac Type
Creators: name: Itoyama, H.
name: Maru, Nobuhito
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Under a few mild assumptions, N=1 supersymmetry in four dimensions is shown to be spontaneously broken in a self-consistent Hartree-Fock approximation of BCS/NJL type to one-loop off-shell, in the gauge theory specified by the gauge kinetic function and the superpotential of adjoint chiral superfields, in particular, that possesses N=2 extended supersymmetry spontaneously broken to N=1 at tree level. The N=2 gauginos receive mixed Majorana-Dirac masses and are split. We derive an explicit form of the gap equation, showing the existence of a nontrivial solution.
description: 4 pages, the paper extended (a numerical plot of the solution to the gap equation, an estimate of the decay rate of the metastable vacuum, and discussion on nonvanishing term induced by the D term dynamical supersymmetry breaking diven), references added
Driving Outflows with Relativistic Jets and the Dependence of AGN Feedback Efficiency on ISM Inhomogeneity
Creators: name: Wagner, A. Y.
name: Bicknell, G. V.
name: Umemura, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the detailed physics of the feedback mechanism by relativistic AGN jets interacting with a two-phase fractal interstellar medium in the kpc-scale core of galaxies using 29 3D grid-based hydrodynamical simulations. The feedback efficiency, as measured by the amount of cloud-dispersal generated by the jet-ISM interactions, is sensitive to the maximum size of clouds in the fractal cloud distribution but not to their volume filling factor. Feedback ceases to be efficient for Eddington ratios P_jet/L_edd<10^-4, although systems with large cloud complexes ~50 pc require jets of Eddington ratio in excess of 10^-2 to disperse the clouds appreciably. Based on measurements of the bubble expansion rates in our simulations we argue that sub-grid AGN prescriptions resulting in negative feedback in cosmological simulations without a multi-phase treatment of the ISM are good approximations if the volume filling factor of warm phase material is less than 0.1 and the cloud complexes are smaller than ~25 pc. We find that the acceleration of the dense embedded clouds is provided by the ram pressure of the high velocity flow through the porous channels of the warm phase, flow that has fully entrained the shocked hot-phase gas it has swept up, and is additionally mass-loaded by ablated cloud material. This mechanism transfers 10% to 40% of the jet energy to the cold and warm gas, accelerating it within 10 to 100 Myr to velocities that match those observed in a range of high and low redshift radio galaxies hosting powerful radio jets.
description: 26 pages, 12 figures. Accepted by the Astrophysical Journal on August 9, 2012
title: Usefulness of four-dimensional CT imaging in a catheter ablation for ventricular arrhythmia
Creators: name: ogawa, ryo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Image verification
subject: Comparative studies
subject: Catheters
subject: Ablation procedures
subject: CT
subject: Cardiac

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: In recent years, catheter ablation has been performed as a cure of tachyarrhythmia in which the pulse rhythm of the heart is irregularity and the pulse rate is increased［1］. Catheter ablation is a method of ablating the local region of the...