cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complex oscillatory patterns near singular Hopf bifurcation in a two time-scale ecosystem
Creators: name: Sadhu, Susmita
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34D15, 34E17, 37G35, 92D40, 92D25

description: We consider an ecological model consisting of two species of predators competing for their common prey with explicit interference competition. With a proper rescaling, the model is portrayed as a singularly perturbed system with one-fast (prey dynamics) and two-slow variables (dynamics of the predators). The model exhibits variety of rich and interesting dynamics, including, but not limited to mixed mode oscillations (MMOs), featuring concatenation of small and large amplitude oscillations, relaxation oscillations and bistability between a semi-trivial equilibrium state and a coexistence oscillatory state. Existence of co-dimenison two bifurcations such as fold-Hopf and generalized Hopf bifurcations make the system further intriguing. More interestingly, in a neighborhood of {\emph{singular Hopf}} bifurcation, long lasting transient dynamics in form of chaotic MMOs or relaxation oscillations are observed as the system approaches the periodic attractor born out of supercritical Hopf bifurcation or a semi-trivial equilibrium state respectively. The transient dynamics could persist for hundreds or thousands of generations before the ecosystem experiences a regime shift. The time series of population cycles with different types of irregular oscillations arising in this model stem from a biological realistic feature, namely, by the variation in the intraspecific competition amongst the predators. To explain these oscillations, we use bifurcation analysis and methods from {\emph{geometric singular perturbation theory}}.
A Computational Model of the Short-Cut Rule for 2D Shape Decomposition
Creators: name: Luo, Lei
name: Shen, Chunhua
name: Liu, Xinwang
name: Zhang, Chunyuan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a new 2D shape decomposition method based on the short-cut rule. The short-cut rule originates from cognition research, and states that the human visual system prefers to partition an object into parts using the shortest possible cuts. We propose and implement a computational model for the short-cut rule and apply it to the problem of shape decomposition. The model we proposed generates a set of cut hypotheses passing through the points on the silhouette which represent the negative minima of curvature. We then show that most part-cut hypotheses can be eliminated by analysis of local properties of each. Finally, the remaining hypotheses are evaluated in ascending length order, which guarantees that of any pair of conflicting cuts only the shortest will be accepted. We demonstrate that, compared with state-of-the-art shape decomposition methods, the proposed approach achieves decomposition results which better correspond to human intuition as revealed in psychological experiments.
description: 11 pages
Homotopy transfer and formality
Creators: name: Drummond-Cole, Gabriel C.
name: Horel, Geoffroy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Topology (math.AT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: In a recent paper, the second author and Joana Cirici proved a theorem that says that given appropriate hypotheses, $n$-formality of a differential graded algebraic structure is equivalent to the existence of a chain-level lift of a homology-level degree twisting automorphism using a unit of multiplicative order at least $n$. Here we give another proof of this result of independent interest and under slightly different hypotheses. We use the homotopy transfer theorem and an explicit inductive procedure in order to kill the higher operations. As an application of our result, we prove formality with coefficients in the $p$-adic integers of certain dg-algebras coming from hyperplane and toric arrangements and configuration spaces.
description: 29 pages
On reconstructing subvarieties from their periods
Creators: name: Movasati, Hossein
name: Sertöz, Emre Can
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 32J25, 14Q10, 32G20

description: We give a new practical method for computing subvarieties of projective hypersurfaces. By computing the periods of a given hypersurface X, we find algebraic cohomology cycles on X. On well picked algebraic cycles, we can then recover the equations of subvarieties of X that realize these cycles. In practice, a bulk of the computations involve transcendental numbers and have to be carried out with floating point numbers. However, if X is defined over algebraic numbers then the coefficients of the equations of subvarieties can be reconstructed as algebraic numbers. A symbolic computation then verifies the results. As an illustration of the method, we compute generators of the Picard groups of some quartic surfaces. A highlight of the method is that the Picard group computations are proved to be correct despite the fact that the Picard numbers of our examples are not extremal.
description: 16 pages; computational aspects highlighted; reconstruction of twisted cubics in higher degree surfaces added
Current transport and thermoelectric properties of very high power factor Fe3O4 / SiO2 / p-type Si (001) devices
Creators: name: Zervos, M.
name: Viskadourakis, Z.
name: Athanasopoulos, G.
name: Flores, R.
name: Conde, O.
name: Giapintzakis, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The current transport and thermoelectric properties of Fe3O4 / SiO2 / p-type Si(001) heterostructures with Fe3O4 thicknesses of 150, 200, and 350 nm have been investigated between 100 and 300 K. We observe a sharp drop of the in-plane resistivity at 200K due to the onset of conduction along the Si / SiO2 interface related to tunneling of electrons from the Fe3O4 into the accumulation layer of holes at the Si / SiO2 interface, whose existence was confirmed by capacitance-voltage measurements and a two band analysis of the Hall effect. This is accompanied by a large increase of the Seebeck coefficient reaching +1000 μV/K at 300K that is related to holes in the p-type Si(001) and gives a power factor of 70 mW/K2m when the Fe3O4 layer thickness is reduced down to 150 nm. We show that most of the current flows in the Fe3O4 layer at 300 K, while the Fe3O4 / SiO2 / p-type Si(001) heterostructures behave like tunneling p-n junctions in the transverse direction.
description: 5 pages, 4 figures
MPEC 2023-U220 : 2023 UU6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UU6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Quark star model with charge distributions
Creators: name: Malaver, Manuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we studied the behavior of relativistic objects with anisotropic matter distribution inthe presence of an electric field considering a gravitational potential Z(x) of Thirukkanesh and Ragel (2013) which depends on an adjustable parameter n. The equation of state presents a quadratic relation between the energy densityand the radial pressure. New exact solutions of the Einstein-Maxwell system are generated. A physical analysis of electromagnetic field indicates that is regular in the origin and well behaved. We show as a variation of the adjustable parameter n causes a modification in the charge density, the radial pressure and the mass of the stellar object.
description: Relativistic Objects; Electric Field; Gravitational Potential; Adjustable Parameter; Einstein-Maxwell System; Charge Density
Associations of GHR, IGF-1 and IGFBP-3 expression in adipose tissue cells with obesity-related alterations in corresponding circulating levels and adipose tissue function in children
Creators: name: Kempf, Elena
name: Landgraf, Kathrin
name: Vogel, Tim
name: Spielau, Ulrike
name: Stein, Robert
name: Raschpichler, Matthias
name: Kratzsch, Jürgen
name: Kiess, Wieland
name: Stanik, Juraj
name: Körner, Antje
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Computational Biology

description: Components of the growth hormone (GH) axis, such as insulin-like growth factor-1 (IGF-1), IGF-1 binding protein-3 (IGFBP-3), GH receptor (GHR) and GH-binding protein (GHBP), regulate growth and metabolic pathways. Here, we asked if serum levels of these factors are altered with overweight/obesity and if this is related to adipose tissue (AT) expression and/or increased fat mass. Furthermore, we hypothesized that expression of GHR, IGF-1 and IGFBP-3 is associated with AT function. Serum GHBP levels were increased in children with overweight/obesity throughout childhood, while for IGF-1 levels and the IGF-1/IGFBP-3 molar ratio obesity-related elevations were detectable until early puberty. Circulating levels did not correlate with AT expression of these factors, which was decreased with overweight/obesity. Independent from obesity, expression of GHR, IGF-1 and IGFBP-3 was related to AT dysfunction,and increased insulin levels. Serum GHBP was associated with liver fat percentage and transaminase levels. We conclude that obesity-related elevations in serum GHBP and IGF-1 are unlikely to be caused by increased AT mass and elevations in GHBP are more closely related to liver status in children. The diminished AT expression of these factors with childhood obesity may contribute to early AT dysfunction and a deterioration of the metabolic state.
title: Extra-pulmonary manifestations of sarcoidosis: A pictorial review
Creators: name: Zarei, Amir 
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Diagnostic procedure
subject: Ultrasound
subject: MR
subject: CT
subject: Genital / Reproductive system male
subject: Gastrointestinal tract
subject: Cardiac
subject: Pathology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To appreciate and review the variety of extra-pulmonary manifestations of sarcoidosis on various imaging modalities. 2. To recognise and consider sarcoidosis as a differential diagnosis when encountering atypical and unexplained radiological...
Angle Covers: Algorithms and Complexity
Creators: name: Evans, William
name: Gethner, Ellen
name: Spalding-Jamieson, Jack
name: Wolff, Alexander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Geometry (cs.CG)
subject: Computational Complexity (cs.CC)
subject: FOS: Computer and information sciences

description: Consider a graph with a rotation system, namely, for every vertex, a circular ordering of the incident edges. Given such a graph, an angle cover maps every vertex to a pair of consecutive edges in the ordering -- an angle -- such that each edge participates in at least one such pair. We show that any graph of maximum degree 4 admits an angle cover, give a poly-time algorithm for deciding if a graph with no degree-3 vertices has an angle-cover, and prove that, given a graph of maximum degree 5, it is NP-hard to decide whether it admits an angle cover. We also consider extensions of the angle cover problem where every vertex selects a fixed number $a>1$ of angles or where an angle consists of more than two consecutive edges. We show an application of angle covers to the problem of deciding if the 2-blowup of a planar graph has isomorphic thickness 2.
Identifying sex differences in predictors of epicardial fat cell morphology
Creators: name: Waddell, Helen M. M.
name: Moore, Matthew K.
name: Herbert-Olsen, Morgan A.
name: Stiles, Martin K.
name: Tse, Rexson D.
name: Coffey, Sean
name: Lamberts, Regis R.
name: Aitken-Buck, Hamish M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Predictors of overall epicardial adipose tissue deposition have been found to vary between males and females. Whether similar sex differences exist in epicardial fat cell morphology is currently unknown. This study aimed to determine whether epicardial fat cell size is associated with different clinical measurements in males and females. Fat cell sizes were measured from epicardial, paracardial, and appendix adipose tissues of post-mortem cases (N= 118 total, 37 females). Epicardial, extra-pericardial, and visceral fat volumes were measured by computed tomography from a subset of cases (N= 70, 22 females). Correlation analyses and stepwise linear regression were performed to identify predictors of fat cell size in males and females. Median fat cell sizes in all depots did not differ between males and females. Body mass index (BMI) and age were independently predictive of epicardial, paracardial, and appendix fat cell sizes in males, but not in females. Epicardial and appendix fat cell sizes were associated with epicardial and visceral fat volumes, respectively, in males only. In females, paracardial fat cell size was associated with extra-pericardial fat volume, while appendix fat cell size was associated with BMI only. No predictors were associated with epicardial fat cell size in females at the univariable or multivariable levels. To conclude, no clinical measurements were useful surrogates of epicardial fat cell size in females, while BMI, age, and epicardial fat volume were independent, albeit weak, predictors in males only.
The Golden-Thompson inequality --- historical aspects and random matrix applications
Creators: name: Forrester, Peter J.
name: Thompson, Colin J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Golden-Thompson inequality, ${\rm Tr} \, (e^{A + B}) \le {\rm Tr} \, (e^A e^B)$ for $A,B$ Hermitian matrices, appeared in independent works by Golden and Thompson published in 1965. Both of these were motivated by considerations in statistical mechanics. In recent years the Golden-Thompson inequality has found applications to random matrix theory. In this survey article we detail some historical aspects relating to Thompson's work, giving in particular an hitherto unpublished proof due to Dyson, and correspondence with Pólya. We show too how the $2 \times 2$ case relates to hyperbolic geometry, and how the original inequality holds true with the trace operation replaced by any unitarily invariant norm. In relation to the random matrix applications, we review its use in the derivation of concentration type lemmas for sums of random matrices due to Ahlswede-Winter, and Oliveira, generalizing various classical results.
description: 17 pages
title: Ultrasonography – a trustworthy tool in the diagnosis and follow-up of simple and complex pleural effusions in children
Creators: name: Cosarca, Mihaela
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Puncture
subject: Diagnostic procedure
subject: Ultrasound
subject: Thorax
subject: Paediatric
subject: Lung
subject: Acute

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To presentthe technique used for the ultrasonographic (US) evaluation of the lung and pleura and their normal ultrasound appearance. To demonstrate the most common US findings associated with simple and complicated pleural...
Identifying sex differences in predictors of epicardial fat cell morphology
Creators: name: Waddell, Helen M. M.
name: Moore, Matthew
name: Herbert-Olsen, Morgan A.
name: Stiles, Martin K.
name: Tse, Rexson D.
name: Coffey, Sean
name: Lamberts, Regis R.
name: Aitken-Buck, Hamish M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Predictors of overall epicardial adipose tissue deposition have been found to vary between males and females. Whether similar sex differences exist in epicardial fat cell morphology is currently unknown. This study aimed to determine whether epicardial fat cell size is associated with different clinical measurements in males and females. Fat cell sizes were measured from epicardial, paracardial, and appendix adipose tissues of post-mortem cases (N=118 total, 37 female). Epicardial, extra-pericardial, and visceral fat volumes were measured by computed tomography from a subset of cases (N=70, 22 female). Correlation analyses and stepwise linear regression were performed to identify predictors of fat cell size in males and females. Median fat cell sizes in all depots did not differ between males and females. Body mass index (BMI) and age were independently predictive of epicardial, paracardial, and appendix fat cell sizes in males, but not in females. Epicardial and appendix fat cell sizes were associated with epicardial and visceral fat volumes, respectively, in males only. In females, paracardial fat cell size was associated with extra-pericardial fat volume while, appendix fat cell size was associated with BMI only. No predictors were associated with epicardial fat cell size in females at the univariable or multivariable levels. To conclude, no clinical measurements were useful surrogates of epicardial fat cell size in females, while BMI, age, and epicardial fat volume were independent, albeit weak, predictors in males only.
On the Feasibility of Multi-Mode Antennas in UWB and IoT Applications below 10 GHz
Creators: name: Johannsen, Nils L.
name: Peitzmeier, Nikolai
name: Hoeher, Peter A.
name: Manteuffel, Dirk
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: While on the one hand 5G and B5G networks are challenged by ultra-high data rates in wideband applications like 100+ Gbps wireless Internet access, on the other hand they are expected to support reliable low-latency Internet of Things (IoT) applications with ultra-high connectivity. These conflicting challenges are addressed in a system proposal dealing with both extremes. In contrast to most recent publications, focus is on the frequency domain below 10~GHz. Towards this goal, multi-mode antenna technology is used and different realizations, offering up to eight uncorrelated ports per radiator element, are studied. Possible baseband architectures tailored to multi-mode antennas are discussed, enabling different options regarding precoding and beamforming.
description: 7 pages, 5 figures, 1 table. Published under: N. L. Johannsen, N. Peitzmeier, P. A. Hoeher and D. Manteuffel, "On the Feasibility of Multi-Mode Antennas in UWB and IoT Applications below 10 GHz," in IEEE Communications Magazine, vol. 58, no. 3, pp. 69-75, March 2020, doi: 10.1109/MCOM.001.1900429
MPEC 2023-U221 : 2023 UV6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 UV6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: The role of interventional radiology in tracheobronchial stenting: patients' selection, imaging, interventional techniques and tools, management of complications.
Creators: name: Kudrnova, Slavka
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Neoplasia
subject: Multidisciplinary cancer care
subject: Fistula
subject: Stents
subject: Endoscopy
subject: Contrast agent-other
subject: Fluoroscopy
subject: CT
subject: Respiratory system
subject: Mediastinum
subject: Interventional non-vascular

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: to illustrate the very important role of interventional radiology in the complex issue of tracheobronchial stenting through the detailed description of its various indications, periprocedural imaging, technical aspects and the management of...
The Thiocyanate Anion is a Primary Driver of Carbon Dioxide Capture by Ionic Liquids
Creators: name: Chaban, Vitaly
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Carbon dioxide, CO2, capture by room-temperature ionic liquids (RTILs) is a vivid research area featuring both accomplishments and frustrations. This work employs the PM7-MD method to simulate adsorption of CO2 by 1,3-dimethylimidazolium thiocyanate at 300 K. The obtained result evidences that the thiocyanate anion plays a key role in gas capture, whereas the impact of the 1,3-dimethylimidazolium cation is mediocre. Decomposition of the computed wave function on the individual molecular orbitals confirms that CO2-SCN binding extends beyond just expected electrostatic interactions in the ion-molecular system and involves partial sharing of valence orbitals.
title: Variability of lung nodules volumetry after manual correction of non-reliable automatically segmented nodules.
Creators: name: Nesterov, Denis
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Computer Applications-Detection, diagnosis
subject: CAD
subject: CT
subject: Lung
subject: Metastases

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lung nodule volumetry is a perspective alternative for conventional diameter measurements in follow-up studies. The method is highly reproducible and more accurate, especially for non spherical nodules. But if nodule it is quite difficult for...
Single-Element Beamforming using Multi-Mode Antenna Patterns
Creators: name: Johannsen, Nils L.
name: Hoeher, Peter A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recently, multi-mode antennas have been studied for communication as well as localization purposes. In this work, the capabilities provided by a single planar multi-mode radiator as a steerable multi-port antenna are explored. As an original contribution, the radiation characteristics of individual groups of modes of the single radiator are combined to optimize beamforming performance. Three possible codebook realizations are studied and compared. A new optimization criterion, gain by element factor, is introduced.
description: 4 Pages, 5 Figures. Published in N. L. Johannsen and P. A. Hoeher, "Single-Element Beamforming Using Multi-Mode Antenna Patterns," in IEEE Wireless Communications Letters, vol. 9, no. 7, pp. 1120-1123, July 2020, doi: 10.1109/LWC.2020.2983023
title: Acquired conductive hearing loss: what to look for on computed tomography?
Creators: name: D´AVOLA, MARINA
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Image verification
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Head and neck

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: • To understand acquired lesions that leads to conductive hearing loss. • To perform a correct differential diagnosis with the help of CT...
"fnh4301_I593409.tab.gz" of "Inclusive jet cross sections in the Breit frame in neutral current deep inelastic scattering at HERA and determination of alpha(s)."
Creators: name: ZEUS Collaboration
Publisher: name: HEPData
Year: 2002

description: Link to fastNLO v2.1 table
description: DESY-HERA. Measurement of the inclusive jet differential cross sections in neutral current deep inelastic scattering of 27.5 GeV positrons from 820 GeV protons with boson virtualities Q**2 & gt; 125 GeV. The data were taken during the 1996-97 HERA running period and have an integrated luminsoity of 38.6 pb-1. Jets areidentified in the Breit frame using the longitudinal kT cluster algorithm.
Predictive genomics: A cancer hallmark network framework for predicting tumor clinical phenotypes using genome sequencing data
Creators: name: Wang, Edwin
name: Zaman, Naif
name: Mcgee, Shauna
name: Milanese, Jean-Sébastien
name: Masoudi-Nejad, Ali
name: O'Connor, Maureen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: We discuss a cancer hallmark network framework for modelling genome-sequencing data to predict cancer clonal evolution and associated clinical phenotypes. Strategies of using this framework in conjunction with genome sequencing data in an attempt to predict personalized drug targets, drug resistance, and metastasis for a cancer patient, as well as cancer risks for a healthy individual are discussed. Accurate prediction of cancer clonal evolution and clinical phenotypes will have substantial impact on timely diagnosis, personalized management and prevention of cancer.
description: 5 figs, related papers, visit lab homepage: http://www.cancer-systemsbiology.org, Seminar in Cancer Biology, 2014
Effective obstruction to lifting Tate classes from positive characteristic
Creators: name: Costa, Edgar
name: Sertöz, Emre Can
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14C25, 14C22, 14F30, 14-04

description: We give an algorithm that takes a smooth hypersurface over a number field and computes a $p$-adic approximation of the obstruction map on the Tate classes of a finite reduction. This gives an upper bound on the "middle Picard number" of the hypersurface. The improvement over existing methods is that our method relies only on a single prime reduction and gives the possibility of cutting down on the dimension of Tate classes by two or more. The obstruction map comes from $p$-adic variational Hodge conjecture and we rely on the recent advancement by Bloch-Esnault-Kerz to interpret our bounds.
description: 35 pages, 2 figures; v3 typos corrected and a new example
title: Frequency CT-signs of vulnerability in soft and mixed coronary plaques in patients with acute coronary syndrome and stable angina.
Creators: name: Shariya, Merab
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Arteriosclerosis
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: CT-Angiography
subject: CT
subject: Cardiovascular system
subject: Cardiac
subject: Ischaemia / Infarction

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of our study was to compare frequency CT-signs of vulnerability in soft and mixed coronary plaques in two groups of patients: with acute coronary syndrome (ACS) and stable angina...
The Appell Function $F_1$ and Regge String Scattering Amplitudes
Creators: name: Lee, Jen-Chi
name: Yang, Yi
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that each 26D open bosonic Regge string scattering amplitude (RSSA) can be expressed in terms of one single Appell function $F_1$ in the Regge limit. This result enables us to derive infinite number of recurrence relations among RSSA at arbitrary mass levels, which are conjectured to be related to the known SL(5,C) dynamical symmetry of $F_1$. In addition, we show that these recurrence relations in the Regge limit can be systematically solved so that all RSSA can be expressed in terms of one amplitude. All these results are dual to high energy symmetries of fixed angle string scattering amplitudes discovered previously [4-8].
description: 12 pages,no figure
Optoelectronically probing the density of nanowire surface trap states to the single state limit
Creators: name: Dan, Yaping
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Due to the large surface-to-volume ratio, surface trap states play a dominant role in the optoelectronic properties of nanoscale devices(1-6). Understanding the surface trap states allows us to properly engineer the device surfaces for better performance. But characterization of surface trap states at nanoscale has been a formidable challenge using the traditional capacitive techniques based on metal-insulator-semiconductor (MIS) structures(7) and deep level transient spectroscopy (DLTS)(8-11). Here, we demonstrate a simple but powerful optoelectronic method to probe the density of nanowire surface trap states to the limit of a single trap state. Unlike traditional capacitive techniques (Fig1a), in this method we choose to tune the quasi-Fermi level across the bandgap of a silicon nanowire photoconductor, allowing for capture and emission of photogenerated charge carriers by surface trap states (Fig1b). The experimental data show that the energy density of nanowire surface trap states is in a range from 10^9cm^-2/eV at deep levels to 10^12cm^-2/eV in the middle of the upper half bandgap. This optoelectronic method allows us to conveniently probe trap states of ultra-scaled nano/quantum devices at extremely high precision.
description: 9 pages and 3 figures
title: Εκτίμηση απόδοσης και ιδιότητες πολιτικών τύπου κανβάν για τον συντονισμό συστημάτων παραγωγής-αποθεμάτων πολλαπλών σταδίων
titleType: AlternativeTitle
title: Performance evaluation and properties of kanban-type policies for the coordination of multi-stage production-inventory systems
Creators: name: Κουκουμιάλος, Στυλιανός
Publisher: name: University of Thessaly
Year: 2003
Subjects: subject: ΠΑΡΑΓΩΓΗ -- ΔΙΟΙΚΗΣΗ ΚΑΙ ΟΡΓΑΝΩΣΗ
subject: ΠΡΟΓΡΑΜΜΑΤΙΣΜΟΣ ΠΑΡΑΓΩΓΗΣ

description: Οι πολιτικές τύπου Kanban που χρησιμοποιούνται για τον συντονισμό συστημάτων παραγωγής-αποθεμάτων πολλαπλών σταδίων έχουν προσελκύσει μεγάλη προσοχή εξαιτίας της απλότητας και αποδοτικότητάς τους. Σε αυτήν την διατριβή διερευνούμε ιδιότητες πολιτικών τύπου kanban για τον συντονισμό συστημάτων παραγωγής-αποθεμάτων πολλαπλών σταδίων με και χωρίς πρότερη πληροφόρηση της ζήτησης και αναπτύσσουμε μια αναλυτική μέθοδο για την εκτίμηση της απόδοσης ενός συστήματος ελέγχου κλιμακωτών kanban. Αρχικά, διερευνούμε αριθμητικά ανταλλαγές μεταξύ των βέλτιστων επιπέδων αποθέματος βάσης (base stock), των αριθμών των kanban, και των προγραμματισμένων χρόνων υστέρησης προμηθειών σε πολιτικές base stock και σε υβριδικές πολιτικές base stock/kanban με πρότερη πληροφόρηση της ζήτησης που χρησιμοποιούνται για τον έλεγχο συστημάτων παραγωγής-αποθεμάτων πολλαπλών σταδίων. Αναφέρουμε υπολογιστική εμπειρία από την προσομοίωση συστημάτων παραγωγής-αποθεμάτων ενός και δύο σταδίων σχετικά με τέτοιες ανταλλαγές και την σημασία τους για την διοίκηση παραγωγής. Στην συνέχεια αναπτύσσουμε μια αναλυτική μέθοδο γενικού σκοπού για την εκτίμηση της απόδοσης ενός συστήματος ελέγχου κλιμακωτών kanban πολλαπλών σταδίων. Η βασική αρχή της προτεινόμενης προσεγγιστικής μεθόδου είναι να αποσυντεθεί το αρχικό σύστημα ελέγχου κλιμακωτών kanban σε ένα σύνολο φωλιασμένων υποσυστημάτων, όπου κάθε υποσύστημα σχετίζεται με ένα συγκεκριμένο κλιμάκιο (echelon) σταδίων. Κάθε υποσύστημα αναλύεται μεμονωμένα χρησιμοποιώντας μια τεχνική προσέγγισης που βασίζεται σε λύση που έχει την μορφή γινομένου (product form solution). Στην συνέχεια, χρησιμοποιούμε μια επαναληπτική διαδικασία για να προσδιορίσουμε τις άγνωστες παραμέτρους κάθε υποσυστήματος. Τα αριθμητικά αποτελέσματα δείχνουν ότι η μέθοδος είναι αρκετά ακριβής.
Effect of rotational mixing and metallicity on the hot star wind mass-loss rates
Creators: name: Krticka, Jiri
name: Kubat, Jiri
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hot star wind mass-loss rates depend on the abundance of individual elements. This dependence is usually accounted for assuming scaled solar chemical composition. However, this approach may not be justified in evolved rotating stars. The rotational mixing brings CNO-processed material to the stellar surface, increasing the abundance of nitrogen at the expense of carbon and oxygen, which potentially influences the mass-loss rates. We study the influence of the modified chemical composition resulting from the rotational mixing on the wind parameters, particularly the wind mass-loss rates. We use our NLTE wind code to predict the wind structure and compare the calculated wind mass-loss rate for the case of scaled solar chemical composition and the composition affected by the CNO cycle. We show that for a higher mass-fraction of heavier elements $Z/Z_\odot\gtrsim0.1$ the change of chemical composition from the scaled solar to the CNO-processed scaled solar composition does not significantly affect the wind mass-loss rates. The missing line force caused by carbon and oxygen is compensated for by nitrogen line force. However, for a very low-mass fraction of heavier elements $Z/Z_\odot\lesssim0.1$ the rotational mixing significantly affects the wind mass-loss rates. Moreover, the decrease of the mass-loss rate with metallicity is stronger at such low metallicities. We study the relevance of the wind momentum-luminosity relationship for different metallicities and show that for a metallicity $Z/Z_\odot\lesssim0.1$ the relationship displays a large scatter, which depreciates the use of this relationship at the lowest metallicities.
description: 7 pages, 5 figures, accepted for publication in Astronomy & Astrophysics
Plane algebraic curves of arbitrary genus via Heegaard Floer homology
Creators: name: Borodzik, Maciej
name: Hedden, Matthew
name: Livingston, Charles
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 14B05

description: Suppose C is a singular curve in CP^2 and it is topologically an embedded surface of genus g; such curves are called cuspidal. The singularities of C are cones on knots K_i. We apply Heegaard Floer theory to find new constraints on the sets of knots {K_i} that can arise as the links of singularities of cuspidal curves. We combine algebro-geometric constraints with ours to solve the existence problem for curves with genus one, d>33, that possess exactly one singularity which has exactly one Puiseux pair (p;q). The realized triples (p,d,q) are expressed as successive even terms in the Fibonacci sequence.
description: 34 pages
The effect of Lyman $α$ radiation on mini-Neptune atmospheres around M stars: application to GJ 436b
Creators: name: Miguel, Yamila
name: Kaltenegger, Lisa
name: Linsky, Jeffrey L.
name: Rugheimer, Sarah
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Mini-Neptunes orbiting M stars are a growing population of known exoplanets. Some of them are located very close to their host star, receiving large amounts of UV radiation. Many M stars emit strong chromospheric emission in the H I Lyman $α$ line (Ly$α$) at 1215.67 Å, the brightest far-UV emission line. We show that the effect of incoming Ly$α$ flux can significantly change the photochemistry of mini-Neptunes' atmospheres. We use GJ 436b as an example, considering different metallicities for its atmospheric composition. For solar composition, H$_2$O-mixing ratios show the largest change because of Ly$α$ radiation. H$_2$O absorbs most of this radiation, thereby shielding CH$_4$, whose dissociation is driven mainly by radiation at other far-UV wavelengths ($\sim1300$ Å). H$_2$O photolysis also affects other species in the atmosphere, including H, H$_2$, CO$_2$, CO, OH and O. For an atmosphere with high metallicity, H$_2$O- and CO$_2$-mixing ratios show the biggest change, thereby shielding CH$_4$. Direct measurements of the UV flux of the host stars are important for understanding the photochemistry in exoplanets' atmospheres. This is crucial, especially in the region between 1 and 10$^{-6}$ bars, which is the part of the atmosphere that generates most of the observable spectral features.
description: 10 pages, Accepted for publication in MNRAS
title: Bilateral renal lesions: a pictorial educational review
Creators: name: Villard, Nicolas
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Abdomen
subject: Kidney
subject: CT
subject: MR
subject: Education
subject: Education and training
subject: Retroperitoneum

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of our educational exhibit is to help radiologists : Recognize common and rare presentation of bilateral renal lesions. Seek association with extra-renal features. Narrow the differential diagnosis to reduce time to final...
Refraction of fast Ne atoms in the attractive well of LiF(001) surface
Creators: name: Debiossac, Maxime
name: Roncin, Philippe
name: Borisov, A. G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Ne atoms with energies up to 3 keV are diffracted under grazing angles of incidence from a LiF(001) surface. For a small momentum component of the incident beam perpendicular to the surface, we observe an increase of the elastic rainbow angle together with a broadening of the inelastic scattering profile. We interpret these two effects as the refraction of the atomic wave in the attractive part of the surface potential. We use a fast, rigorous dynamical diffraction calculation to find a projectile-surface potential model that enables a quantitative reproduction of the experimental data for up to ten diffraction orders. This allows us to extract an attractive potential well depth of 10.4 meV. Our results set a benchmark for more refined surface potential models which include the weak Van der Waals region, a long-standing challenge in the study of atom-surface interactions.
Revisiting Atomic Collisions Physics with highly charged ions, A tribute to Michel Barat
Creators: name: Roncin, Philippe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Michel Barat passed away in November 2018 at the age of 80 after a rich career in atomic and molecular collisions. He had participated actively in formalizing to the electron promotion model, contributed to low energy reactive collisions at the frontier of chemistry. He investigated electron capture mechanisms by highly charged ions, switched to collision induced cluster dissociation and finally to UV laser excitation induced fragmentation mechanisms of biological molecules. During this highly active time he created a lab, organized ICPEAC and participated actively in the administration of research. This paper covers the ten years where he mentored my scientific activity in the blossoming field of electron capture by highly charge ions (HCI). In spite of an impressive number of open channels, Michel found a way to capture the important parameters and to simplify the description of several electron capture processes; orientation propensity, electron promotion, true double electron capture, Transfer ionisation, Transfer excitation, formation of Rydberg states, and electron capture by metastable states. Each time Michel established fruitful collaborations with other groups.
description: physics.atom-ph, submitted to Journal of Physics B
Interpretable Meta-Measure for Model Performance
Creators: name: Gosiewska, Alicja
name: Woźnica, Katarzyna
name: Biecek, Przemysław
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Benchmarks for the evaluation of model performance play an important role in machine learning. However, there is no established way to describe and create new benchmarks. What is more, the most common benchmarks use performance measures that share several limitations. For example, the difference in performance for two models has no probabilistic interpretation, there is no reference point to indicate whether they represent a significant improvement, and it makes no sense to compare such differences between data sets. We introduce a new meta-score assessment named Elo-based Predictive Power (EPP) that is built on top of other performance measures and allows for interpretable comparisons of models. The differences in EPP scores have a probabilistic interpretation and can be directly compared between data sets, furthermore, the logistic regression-based design allows for an assessment of ranking fitness based on a deviance statistic. We prove the mathematical properties of EPP and support them with empirical results of a large scale benchmark on 30 classification data sets and a real-world benchmark for visual data. Additionally, we propose a Unified Benchmark Ontology that is used to give a uniform description of benchmarks.
description: Author's pre-publication version of a 2022 Nature Machine Intelligence article. arXiv admin note: text overlap with arXiv:1908.09213
Disagreement between capture probabilities extracted from capture and quasi-elastic backscattering excitation functions
Creators: name: Sargsyan, V. V.
name: Adamian, G. G.
name: Antonenko, N. V.
name: Gomes, R. P. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Experimental quasi-elastic backscattering and capture (fusion) excitation functions are usually used to extract the s-wave capture probabilities for the heavy-ion reactions. We investigated the $^{16}$O+$^{120}$Sn,$^{144}$Sm,$^{208}$Pb systems at energies near and below the corresponding Coulomb barriers and concluded that the probabilities extracted from quasi-elastic data are much larger than the ones extracted from fusion excitation functions at sub and deep-sub barrier energies. This seems to be a reasonable explanation for the known disagreement observed in literature for the nuclear potential diffuseness derived from both methods.
description: 9 pages, 3 figures
title: conductive hearing loss with normal tympanic membranes : spectrum of CT findings.
Creators: name: Mestiri, Manel
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Decision analysis
subject: CT
subject: Ear / Nose / Throat
subject: Anatomy
subject: Education and training
subject: Epidemiology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: to review the pertinent anatomy of hearing to discuss the radiologic appearance of common entities that cause acquired hearing loss with normal tympanic...
On spectral flow and Fermi arcs
Creators: name: Thiang, Guo Chuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We introduce spectral flow techniques to explain why the Fermi arcs of Weyl semimetals are topologically protected against boundary condition changes and perturbations. We first analyse the topology of a certain universal space of self-adjoint half-line massive Dirac Hamiltonians, and then exploit its non-trivial and homotopy invariant spectral flow structure by pulling it back to generic Weyl semimetal models. The homological perspective of using Dirac strings/Euler chains as global topological invariants of Weyl semimetals/Fermi arcs, is thereby analytically justified.
description: 5 figures. Slightly revised version, to appear in CMP
D4.5 Landscape of emerging technological opportunities for first aid response on multi-casualty disasters M18
Creators: name: Martínez Beltrán, Enrique Tomás
name: Quiles Pérez, Mario
name: López Pérez, Sergio
name: Gil Pérez, Manuel
name: Martínez Pérez, Gregorio
name: López Bernal, Eduardo
name: Martínez López, Juan Antonio
Publisher: name: Zenodo
Year: 2023
Subjects: First aid vehicles
C2
Communication
Digitalization
Wearables
Devices

description: This document presents the initial study of the existing landscape regarding the technological opportunities for first responders by considering a cross-border, cross-sectorial, and cross-hierarchical approach applicable to first aid actuations. In particular, the document includes the review of connected and autonomous driving enablers to support the disaster response actuation, the establishment of trusted communications for sharing operational information in a multi-domain environment, and the use of wearables for tracking and analysing both patients and emergency response staff, the setting of a mobile C&C for decision-making and the potential creation of digital twins. Finally, it incorporates several gaps identified in different UCs and the improvement for adapting these considerations to real scenarios.
title: MRI spectrum of clear cell carcinoma of the ovary
Creators: name: Yamashita, Eiko
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Pathology
subject: Diagnostic procedure
subject: MR
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To be familiar with the appearance of clear cell carcinoma of the ovary on MRI focused on the combination of various signal intensities on T2WI, DWI, ADC values and enhanced pattern on dynamic contrast-enhanced...