cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An ultrasensitive and multispectral refractive index sensor design based on quad-supercell metamaterials
Creators: name: Xiao, Shuyuan
name: Wang, Tao
name: Liu, Yuebo
name: Han, Xu
name: Yan, Xicheng
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Plasmonic metamaterials support the localized surface plasmon resonance (LSPR), which is sensitive to the change in the dielectric environment and highly desirable for ultrasensitive biochemical sensing. In this work, a novel design of supercell metamaterials of four mutually rotating split ring resonators (SRRs) is proposed, where simultaneous excitations of odd (N=1 and N = 3) and even (N=2) resonance modes are realized due to additional asymmetry from the rotation and show insensitivity to two orthogonal polarizations. The full utilization of these three resonance dips show bright prospects for multispectral application. As a refractive index (RI) sensor, ultrahigh sensitivities ~1000nm/RIU for LC mode (N=1) and ~500nm/RIU for plasmon mode (N=2) are obtained in near infrared (NIR) spectrum.
description: Accepted Manuscript
title: Diagnostic Value of Diffusion-Weighted Magnetic Resonance Imaging in Breast Lesions
Creators: name: Souza, Juliana
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: MR-Diffusion/Perfusion
subject: Diagnostic procedure
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Magnetic resonance imaging (MRI) has been increasingly used in the management of patients with breast lesions. However, despite the high sensitivity for the diagnosis of breast cancer, the specificity of breast MRI is low in most studies. New MRI...
Die Bedeutung der Propheten und des Prophetenwortes der Vergangenheit für das lukanische Menschenbild
Creators: name: Stenschke, Christoph W.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1635761441
description: Jahrbuch für evangelikale Theologie, V. 10 (1996): Jahrbuch für evangelikale Theologie, Band 10
On the noncommutative Poisson geometry of certain wild character varieties
Creators: name: Fairon, Maxime
name: Fernández, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: To show that certain wild character varieties are multiplicative analogues of quiver varieties, Boalch introduced colored multiplicative quiver varieties. They form a class of (nondegenerate) Poisson varieties attached to colored quivers whose representation theory is controlled by fission algebras: noncommutative algebras generalizing the multiplicative preprojective algebras of Crawley-Boevey and Shaw. Previously, Van den Bergh exploited the Kontsevich-Rosenberg principle to prove that the natural Poisson structure of any (non-colored) multiplicative quiver variety is induced by an $H_0$-Poisson structure on the underlying multiplicative preprojective algebra; indeed, it turns out that this noncommutative structure comes from a Hamiltonian double quasi-Poisson algebra constructed from the quiver itself. In this article we conjecture that, via the Kontsevich-Rosenberg principle, the natural Poisson structure on each colored multiplicative quiver variety is induced by an $H_0$-Poisson structure on the underlying fission algebra which, in turn, is obtained from a Hamiltonian double quasi-Poisson algebra attached to the colored quiver. We study some consequences of this conjecture and we prove it in two significant cases: the interval and the triangle.
description: v4: Final version to appear in Journal of Noncommutative Geometry
Born-Infeld cosmology with scalar Born-Infeld matter
Creators: name: Jana, Soumya
name: Kar, Sayan
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmology in Eddington-inspired Born-Infeld gravity is investigated using a scalar Born-Infeld field (e.g. tachyon condensate) as matter. In this way, both in the gravity and matter sectors we have Born-Infeld-like structures characterized by their actions and via two separate constants, $κ$ and $α_T^2$ respectively. With a particular choice of the form of $\dotϕ$ (the time derivative of the Born-Infeld scalar), analytical cosmological solutions are found. Thereafter, we explore some of the unique features of the corresponding cosmological spacetimes. For $κ>0$, our solution has a de Sitter-like expansion both at early and late times, with an intermediate deceleration sandwiched between the accelerating phases. On the other hand, when $κ<0$, the initial de Sitter phase is replaced by a bounce. Our solutions, at late time, fit well with available supernova data-- a fact we demonstrate explicitly. The estimated properties of the Universe obtained from the fitting of the $κ>0$ solution, are as good as in $Λ$CDM cosmology. However, the $κ<0$ solution has to be discarded due to the occurrence of a bounce at an unacceptably low redshift.
description: 24 pages, 8 figures. Published version
Dynamical conductivity and its fluctuations along the crossover to many-body localization
Creators: name: Barišić, Osor S.
name: Kokalj, Jure
name: Balog, Ivan
name: Prelovšek, Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a numerical study of the many-body localization (MBL) phenomenon in the high-temperature limit within an anisotropic Heisenberg model with random local fields. Taking the dynamical spin conductivity $σ(ω)$ as the test quantity, we investigate the full frequency dependence of sample-to-sample fluctuations and their scaling properties as a function of the system size $L\leq 28$ and the frequency resolution. We identify differences between the general interacting case $Δ>0$ and the anisotropy $Δ=0$, the latter corresponding to the standard Anderson localization. Except for the extreme MBL case when the relative sample-to-sample fluctuations became large, numerical results allow for the extraction of the low-$ω$ dependence of the conductivity. Results for the d.c. value $σ_0$ indicate a crossover into the MBL regime, i.e. an exponential-like variation with the disorder strength $W$. For the same regime, our numerical analysis indicates that the low-frequency exponent $α$ exhibits a small departure from $α\sim 1$ only.
description: 6 pages, 6 figures
Examination of Some Nut Traits and Release From Dormancy Along With Germination Capacity in Some Bitter Almond Genotypes
Creators: name: Raouf, Anwar Mohammed
name: Salih, Kocher Omer
name: Mohammad, Aram Akram
Publisher: name: arXiv
Year: 2023
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: FOS: Biological sciences

description: This study was conducted at College of Agricultural Engineering Sciences, University of Sulaimani, Kurdistan Region-Iraq so as to investigate some nut traits in 10 bitter almond genotypes, capacity of them to release from dormancy and finally germination ability. Nut traits were calculated, and stratified in a sand medium at 6 C in a refrigerator for 55 days, then they were sown in fine sand on August 22, 2021 for 29 days to calculate germination percentage. There were great discrepancies among genotypes in nut traits. Nut length was between (23.66-32.73 mm), nut width (18.77-21.84 mm), nut size (3.16-4.26 cm3), nut weight (2.67-4.13 g), kernel weight (0.6-0.99 g), shell weight (1.94-3.27 g) and shell thickness (2.31-3.37 mm). The results of release from dormancy and calculation of germination percentage trials showed that the highest nut numbers from G6 (100%), G4 (86.11%) and G2 (65.22%) were released from dormancy and the same genotypes gave the best germination percentage, particularly G6 and G2 both gave (73.33%) germination. Depending on the results of release percentage from dormancy and germination percentage, G6 and G2 along with G4 were the best genotypes.
title: Acute disseminated encephalomyelitis: a review of the main aspects in the study with conventional MRI and using advanced techniques such as spectroscopy and diffusion.
Creators: name: Santos, Alair Augusto
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Spectroscopy
subject: Observer performance
subject: Outcomes analysis
subject: Technical aspects
subject: Inflammation

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The purposes of the exhibit is: To review the main findings on MRI in patients with acute disseminated encephalomyelitis. Describe the findings of this disease in the sequences of the diffusion and...
Actions for Self-dual Higher Spin Gravities
Creators: name: Krasnov, Kirill
name: Skvortsov, Evgeny
name: Tran, Tung
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Higher Spin Gravities are scarce, but covariant actions for them are even scarcer. We construct covariant actions for contractions of Chiral Higher Spin Gravity that represent higher spin extensions of self-dual Yang-Mills and self-dual Gravity theories. The actions give examples of complete higher spin theories both in flat and (anti)-de Sitter spaces that feature gauge and gravitational interactions. The actions are based on a new description of higher spin fields, whose origin can be traced to early works on twistor theory. The new description simplifies the structure of interactions. In particular, we find a covariant form of the minimal gravitational interaction for higher spin fields both in flat and anti-de Sitter space, which resolves some of the puzzles in the literature.
description: 28 pages+refs; small cosmetic changes
title: Neuroimaging findings in alcoholism
Creators: name: Nates Uribe, Naroa
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: MR
subject: CT
subject: Imaging sequences
subject: Diagnostic procedure
subject: Metabolic disorders
subject: Cirrhosis

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Describe theimaging findings of central nervous system disorders related with alcohol...
title: Two years follow-up after a concordant benign breast biopsy result. How are we doing?
Creators: name: Rueda Narvaez, Victoria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Biopsy
subject: Ultrasound
subject: Interventional non-vascular
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Core-needle biopsy (CNB) is a less expensive, equally accurate alternative to excisional biopsy. Key to the diagnostic success of the core-needle approach is routine consensus evaluation of radiologic-pathologic concordance. The major limitation of...
title: Continuous Professional Development: The perspective of radiographers in private and public institutions of Lisbon region
Creators: name: Leal, Joana
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Epidemiology
subject: Statistics
subject: Conventional radiography
subject: MR
subject: CT
subject: Professional issues

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. Continuing Professional Development (CPD), is a systematic improvement and maintenanceof the knowledge, skills and qualities, both personal and professionals,needed for the implementation of technical and professional duties, throughout the...
Quench dynamics of a Bose-Einstein condensate under synthetic spin-orbit coupling
Creators: name: Deng, Tian-Shu
name: Zhang, Wei
name: Yi, Wei
name: Guo, Guang-Can
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the quench dynamics of a Bose-Einstein condensate under a Raman-assisted synthetic spin-orbit coupling. To model the dynamical process, we adopt a self-consistent Bogoliubov approach, which is equivalent to applying the time-dependent Bogoliubov-de-Gennes equations. We investigate the dynamics of the condensate fraction as well as the momentum distribution of the Bose gas following a sudden change of system parameters. Typically, the system evolves into a steady state in the long-time limit, which features an oscillating momentum distribution and a stationary condensate fraction which is dependent on the quench parameters. We investigate how different quench parameters such as the inter- and intra-species interactions and the spin-orbit-coupling parameters affect the condensate fraction in the steady state. Furthermore, we find that the time average of the oscillatory momentum distribution in the long-time limit can be described by a generalized Gibbs ensemble with two branches of momentum-dependent Gibbs temperatures. Our study is relevant to the experimental investigation of dynamical processes in a spin-orbit coupled Bose-Einstein condensate.
description: 9 pages, 5 figures
title: Central Neurocytoma
Creators: name: Hernandez Rodriguez, Cristina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: Oncology
subject: CT
subject: MR
subject: Ultrasound
subject: Contrast agent-intravenous
subject: Computer Applications-General
subject: Chemistry
subject: Neoplasia
subject: Cysts

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. Description of the radiological characteristics of central neurocytoma based on the review of three cases from our institution. 2. Review of typical histological findings. 3. Diferential diagnosis from other intraventricular...
title: Looking at jejunum and ileum diseases
Creators: name: Ferreira, Ivo
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Small bowel
subject: Abdomen
subject: CT
subject: Conventional radiography
subject: Diagnostic procedure
subject: Hernia
subject: Inflammation
subject: Pathology

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: - To recognize the spectrum of pathologies of jejunum and ileum - To understand the role of barium studies and CT in the evaluation of these small bowel segments - To present typical imaging findings of many jejunum and ileum...
Multifactor Risk Models and Heterotic CAPM
Creators: name: Kakushadze, Zura
name: Yu, Willie
Publisher: name: arXiv
Year: 2016
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business

description: We give a complete algorithm and source code for constructing general multifactor risk models (for equities) via any combination of style factors, principal components (betas) and/or industry factors. For short horizons we employ the Russian-doll risk model construction to obtain a nonsingular factor covariance matrix. This generalizes the heterotic risk model construction to include arbitrary non-industry risk factors as well as industry risk factors with generic "weights". The aim of sharing our proprietary know-how with the investment community is to encourage organic risk model building. The presentation is intended to be essentially self-contained and pedagogical. So, stop wasting money and complaining, start building risk models and enjoy!
description: 49 pages; one reference updated; to appear in The Journal of Investment Strategies. arXiv admin note: substantial text overlap with arXiv:1508.04883
Optimization of Resources to Minimize Power Dissipation in 5G Wireless Networks
Creators: name: Rani, Jyotsna
name: Prasad, Ganesh
Publisher: name: arXiv
Year: 2023
Subjects: subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: In today's modern communications, with evolution of various applications, the demand of data rate is increasing exponentially at the cost of huge consumption of available resources. It has been recorded that the communication networks dissipate nearly 1\% of the world-wide total power consumption, results in millions of tons of CO2 emission due to their production and thereby causes various environmental health hazards. The optimal utilization of available resources that can balance the present coexisting problem without any compromise on the high throughput demand, paves the way for the next generation green 5G wireless networks. In this chapter, we study the minimization of total power consumption while satisfying the desired coverage of the user equipments (UEs) to provide the minimum throughput over the network. In this regard, the deployment of base stations (BSs), their number, and transmit power are optimized in two scenarios (i) when the UEs are large in 5G wireless network and (ii) when moderate UEs are distributed over the field.
title: Gynaecological emergencies in pictorial review - what the on-call Radiologist needs to know!
Creators: name: Hutchings, Alexandra
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: CT
subject: MR
subject: Ultrasound
subject: Pelvis
subject: Emergency
subject: Genital / Reproductive system female
subject: Diagnostic procedure
subject: Education
subject: Acute

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1. To recognise typical imaging characteristics of acute gynaecological emergencies that can present to the on-call Radiologist. 2. To consider the differential diagnosis for common presentations, including non-gynaecological conditions which can...
Property $R_\infty$ for some spherical and affine Artin-Tits groups
Creators: name: Calvez, Matthieu
name: Soroko, Ignat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 20F36, 20F65, 57K20, 20E36, 20E45, 57M07 (primary)

description: Let $n\ge2$. In this note we give a short uniform proof of property $R_\infty$ for the Artin-Tits groups of spherical types $A_n$, $B_n$, $D_4$, $I_2(m)$ ($m\ge3$), their pure subgroups, and for the Artin-Tits groups of affine types $\widetilde A_{n-1}$ and $\widetilde C_n$. In particular, we provide an alternative proof of a recent result of Dekimpe, Gonçalves and Ocampo, who established property $R_{\infty}$ for pure Artin braid groups.
description: v2: minor changes to implement referee's comments. To appear in Journal of Group Theory. 6 pages, 1 figure
THE ROLE OF PROFITABILITY AND LEVERAGE IN DETERMINING INDONESIA'S COMPANIES STOCK PRICES
Creators: name: SAFITRI SISWONO
name: LAILAH FUJIANTI
Publisher: name: Zenodo
Year: 2024
Subjects: Earning Per Share, Debt to Equity Ratio, Stock Price.

description: Abstract

The stock price is one source of funds obtained by the company. Because stock prices reflect changes in investor interest in these shares. Stock prices also change from time to time and investments are carried out with the aim of obtaining profits as expected. Therefore, to achieve these benefits the company must increase the value of the company. The purpose of this study was to analyze the effect of Earning per Share (EPS), Return on Equity (ROE), and Debt to Equity Ratio (DER) on Stock Prices. The data used are secondary data consisting of the audited company's annual financial statements and has complete financial ratios needed in this study. The population in this study is the Wholesale and Retail Trade companies listed on the Indonesia Stock Exchange in 2017-2019. The sampling method used was purposive sampling, obtained by 23 companies for a collection period of 3 years, so that a final sample of 69 research data was obtained. Results of this study indicate that Earnings per Share (EPS) has a significant positive effect on Stock Prices and Debt to Equity Ratio (DER) do not affect the stock price.
title: Isolated acute non-traumatic cortical subarachnoid haemorrhage (cSAH); clinical features, diagnosis and etiological background.
Creators: name: Gil, Ana Rosa
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Infection
subject: Haemorrhage
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Neuroradiology brain

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The purposes of this work are: To review the clinical features and neuroradiological findings of cortical subarachnoid haemorrhage (c-SAH). To identify the underlying etiologies of isolated acute non traumatic cortical subarachnoid haemorrhage...
title: An innovative technique for image-guided biopsy of upper urinary tract urothelial cell carcinoma detected by CT urography for histopathological confirmation of diagnosis and elimination of false-positive results
Creators: name: Matin, Tahreema
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Urinary Tract / Bladder
subject: CT
subject: Fluoroscopy
subject: Biopsy
subject: Pyelography
subject: Diagnostic procedure
subject: Pathology
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To explain why image-guided biopsy of upper urinary tract urothelial cell carcinoma (UUT-UCC) found by CT urography is recommended before surgery. To illustrate common CT urography false-positive findings for UUT-UCC. To report a new innovative...
Simulation of the Internet of Things
Creators: name: D'Angelo, Gabriele
name: Ferretti, Stefano
name: Ghini, Vittorio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: This paper presents main concepts and issues concerned with the simulation of Internet of Things (IoT). The heterogeneity of possible scenarios, arising from the massive deployment of an enormous amount of sensors and devices, imposes the use of sophisticated modeling and simulation techniques. In fact, the simulation of IoT introduces several issues from both quantitative and qualitative aspects. We discuss novel simulation techniques to enhance scalability and to permit the real-time execution of massively populated IoT environments (e.g., large-scale smart cities). In particular, we claim that agent-based, adaptive Parallel and Distributed Simulation (PADS) approaches are needed, together with multi-level simulation, which provide means to perform highly detailed simulations, on demand. We present a use case concerned with the simulation of smart territories.
description: Proceedings of the IEEE 2016 International Conference on High Performance Computing and Simulation (HPCS 2016)
"Nachahmung" - ein vergessenes Thema?
Creators: name: Baumert, Manfred Otto Willi
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1637463421
description: Jahrbuch für evangelikale Theologie, V. 10 (1996): Jahrbuch für evangelikale Theologie, Band 10
title: MR findings of wrist trauma. Our experience with 280 patients
Creators: name: Carrasco, Martin
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal bone
subject: Musculoskeletal soft tissue
subject: Musculoskeletal joint
subject: MR
subject: Statistics
subject: Pathology

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To show our experience and review the osseous structures most commonly injured in patients with wrist trauma, based on MR...
Varieties of Abelian mirror symmetry on $\mathbb{RP}^2 \times \mathbb{S}^1$
Creators: name: Mori, Hironori
name: Tanaka, Akinori
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study 3d mirror symmetry with loop operators, Wilson loop and Vortex loop, and multi-flavor mirror symmetry through utilizing the $\mathbb{RP}^2 \times \mathbb{S}^1$ index formula. The key identity which makes the above description work well is the mod 2 version of the Fourier analysis, and we study such structure, the S-operation in the context of a SL$(2,\mathbb{Z})$ action on 3d SCFTs. We observed that two types of the parity conditions basically associated with gauge symmetries which we call $\mathcal{P}$-type and $\mathcal{CP}$-type are interchanged under mirror symmetry. We will also comment on the T-operation.
description: 24 pages; v2: reference added; v3: formulas modified, comments added, a reference added, and published in JHEP
title: Essure birth control device – Ultrasound evaluation and monitoring
Creators: name: Faria João, Pedro
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pelvis
subject: Genital / Reproductive system female
subject: Ultrasound
subject: Localisation
subject: Foreign bodies

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To describe the expression on ultrasound of the Essure permanent birth control device and the evaluation of its...
Self Coupling of the Higgs boson in the processes $p\,p\,\rightarrow\,ZHHH+X$ and $p\,p\,\rightarrow\,WHHH+X$
Creators: name: Dicus, Duane A.
name: Kao, Chung
name: Repko, Wayne W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: To gain some sense about the likelihood of measuring the Higgs boson quartic coupling, we calculate the contribution to the triple Higgs production cross section from the subprocesses $q\bar{q}\to ZHHH$ and $q\bar{q}'\to WHHH$. Our results illustrate that determining this coupling, or even providing experimental evidence that it exists, will be very difficult.
description: 8 pages, 8 figures, additional references, additional figure
title: Rencontre avec...
Publisher: name: Praxiling
Year: 2023

description: En décembre 2023 paraît le numéro hors-série 16 du Sociographe intitulé "Accéder à la scène - Enjeux de la professionnalisation des artistes en situation de handicap".

https://www.cairn.info/revue-sociographe-2023-4.htm
A Rank-One Optimization Framework and Its Applications to Transmit Beamforming
Creators: name: Le, Tuan Anh
name: Ng, Derrick Wing Kwan
name: Yang, Xin-She
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper proposes an elegant optimization framework consisting of a mix of linear-matrix-inequality and second-order-cone constraints. The proposed framework generalizes the semidefinite relaxation (SDR) enabled solution to the typical transmit beamforming problems presented in the form of quadratically constrained quadratic programs (QCQPs) in the literature. It is proved that the optimization problems subsumed under the framework always admit a rank-one optimal solution when they are feasible and their optimal solutions are not trivial. This finding indicates that the relaxation is tight as the optimal solution of the original beamforming QCQP can be straightforwardly obtained from that of the SDR counterpart without any loss of optimality. Four representative examples of transmit beamforming, i.e., transmit beamforming with perfect channel state information (CSI), transmit beamforming with imperfect CSI, chance-constraint approach for imperfect CSI, and reconfigurable-intelligent-surface (RIS) aided beamforming, are shown to demonstrate how the proposed optimization framework can be realized in deriving the SDR counterparts for different beamforming designs.
Higher-dimensional Contou-Carrère symbol and continuous automorphisms
Creators: name: Gorchinskiy, Sergey
name: Osipov, Denis
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: K-Theory and Homology (math.KT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We prove that the higher-dimensional Contou-Carrère symbol is invariant under continuous automorphisms of algebras of iterated Laurent series over a ring. Applying this property, we obtain a new explicit formula for the higher-dimensional Contou-Carrère symbol. Unlike previously known formulas, this formula is given over an arbitrary ring, not necessarily a $\mathbb Q$-algebra, and does not involve algebraic $K$-theory.
description: 18 pages; minor changes
Intermediary LEO propagation including higher order zonal harmonics
Creators: name: Hautesserres, Denis
name: Lara, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: Two new intermediary orbits of the artificial satellite problem are proposed. The analytical solutions include higher order effects of the Geopotential, and are obtained by means of a torsion transformation applied to the quasi-Keplerian system resulting after the elimination of the parallax simplification, for the first intermediary, and after the elimination of the parallax and perigee simplifications, for the second one. The new intermediaries perform notably well for low earth orbits propagation, are free from special functions, and result advantageous, both in accuracy and efficiency, when compared to the standard Cowell integration of the J2 problem, thus providing appealing alternatives for onboard, short-term, orbit propagation under limited computational resources.
description: Celestial Mechanics and Dynamical Astronomy: Accepted September 25, 2016
Model Fractional Chern Insulators
Creators: name: Behrmann, Jörg
name: Liu, Zhao
name: Bergholtz, Emil J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We devise local lattice models whose ground states are model fractional Chern insulators---Abelian and non-Abelian topologically ordered states characterized by exact ground state degeneracies at any finite size and infinite entanglement gaps. Most saliently, we construct exact parent Hamiltonians for two distinct families of bosonic lattice generalizations of the $\mathcal{Z}_k$ parafermion quantum Hall states: (i) color-entangled fractional Chern insulators at band filling fractions $ν=k/(\mathcal{C}+1)$ and (ii) nematic states at $ν=k/2$, where $\mathcal{C}$ is the Chern number of the lowest band in our models. In spite of a fluctuating Berry curvature, our construction is partially frustration free: the ground states reside entirely within the lowest band and exactly minimize a local $(k+1)$-body repulsion term by term. In addition to providing the first known models hosting intriguing states such as higher Chern number generalizations of the Fibonacci anyon quantum Hall states, the remarkable stability and finite-size properties make our models particularly well-suited for the study of novel phenomena involving e.g. twist defects and proximity induced superconductivity, as well as being a guide for designing experiments.
description: 9 pages, 5 figures
Das Verhältnis der Archäologie zur Exegese, dargestellt an drei Beispielen
Creators: name: Pehlke, Helmuth
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1637870256
description: Jahrbuch für evangelikale Theologie, V. 10 (1996): Jahrbuch für evangelikale Theologie, Band 10
Drifting Asteroid Fragments Around WD 1145+017
Creators: name: Rappaport, S.
name: Gary, B. L.
name: Kaye, T.
name: Vanderburg, A.
name: Croll, B.
name: Benni, P.
name: Foote, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We have obtained extensive photometric observations of the polluted white dwarf WD 1145+017 which has been reported to be transited by at least one, and perhaps several, large asteroids (or, planetesimals) with dust emission. We have carried out 53 observation sessions on 37 nights, totaling 192 hours, of this 17th magnitude star with small to modest size telescopes covering the interval 2015 November 1 to 2016 January 21. In all, we have detected some 237 significant dips in flux. Periodograms of the data reveal a significant periodicity of 4.5004 hours that is consistent with the dominant ("A") period detected with K2. The folded light curve at this period shows there is an hour-long depression in flux with a mean depth of nearly 10%. This depression is comprised of a series of shorter and sometimes deeper dips that do not always occur at exactly the same orbital phase, and which would be unresolvable with K2. In fact, we find numerous dips in flux at other orbital phases. Nearly all of the dips associated with this activity appear to drift systematically in phase with respect to the "A" period by about 2.5 minutes per day with a dispersion of ~0.5 min/d, corresponding to a mean drift period of 4.4928 hours. In all, we can track approximately 15 of these drifting features. There is no detection of the "B"-"F" periods found with K2, but if they remain at the K2 levels we would not expect to have seen them. We explain the drifting motion as that of smaller bodies (`fragments') that break off from the asteroid and go into a slightly smaller orbit than that of the asteroid. If our interpretation is correct, we can use the drift rate to determine the mass of the asteroid. Under that scenario, we find that the mass of the asteroid is M_a ~ = 10^23 grams, or about 1/10th the mass of Ceres, with an uncertainty of about a factor of 2.
description: 14 pages, 12 figures, accepted for publication in MNRAS; minor revisions
Oxygen Vacancies in Niobium Pentoxide as a Source of Two-Level System Losses in Superconducting Niobium
Creators: name: Bafia, Daniel
name: Murthy, Akshay
name: Grassellino, Anna
name: Romanenko, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We identify a major source of quantum decoherence in three-dimensional superconducting radio-frequency (SRF) resonators and two-dimensional transmon qubits composed of oxidized niobium: oxygen vacancies in the niobium pentoxide which drive two-level system (TLS) losses. By probing the effect of sequential \textit{in situ} vacuum baking treatments on the RF performance of bulk Nb SRF resonators and on the oxide structure of a representative Nb sample using time-of-flight secondary ion mass spectrometry (ToF-SIMS), we find a non-monotonic evolution of cavity quality factor $Q_0$ which correlates with the interplay of Nb\textsubscript{2}O\textsubscript{5} vacancy generation and oxide thickness reduction. We localize this effect to the oxide itself and present the insignificant role of diffused interstitial oxygen in the underlying Nb by regrowing a new oxide \textit{via} wet oxidation which reveals a mitigation of aggravated TLS losses. We hypothesize that such vacancies in the pentoxide serve as magnetic impurities and are a source of TLS-driven RF loss.
«STUDY AND DEVELOPMENT OF WAYS TO DETECT AND PREVENT CYBERATTACKS IN CORPORATE INFORMATION SYSTEMS NETWORKS»
Creators: name: Rakhmanov, Shukhrat
name: Rakhmanova, Shakhzoda
Publisher: name: Zenodo
Year: 2024

description: The scientific article is timed to the current task of cybersecurity in advanced information developments. With the development of the number of cyberattacks and the complexity of their difficulty, the defense of information systems becomes a priority task for organizations and countries. The article presents the results of the study and development of methods for detecting and preventing cyberattacks in the networks of corporate information systems. The study includes testing of advanced threats and attacks, assessment of vulnerabilities of information systems, and development of algorithms for current detection of untrustworthy activity. The article also discusses machine learning technologies and artificial origin intelligence, applied for the improvement of the prediction and defense system's performance. The results of the study can be used in practical tasks of ensuring cybersecurity, which contributes to the protection of confidential information and ensuring the uninterrupted operation of information systems of organizations. The note emphasizes the importance of continuous updating of methods and technologies in the field of cybersecurity for effective defense of information assets.
Situations sanitaires exceptionnelles :du concept à l’organisationde la réponse – Partie I – Cadre général et dispositif Orsan
Creators: name: Jean-Marc Philippe
name: Jean-Malo Dean
name: Henry, Cécile
name: Brahic, Olivier
Publisher: name: Health & Co
Year: 2020
Subjects: Alerte sanitaire
Situation sanitaire exceptionnelle
Gestion de crise
Système de santé
Dispositif Orsan
Epidémie
DGS
ARS

description: Le système de santé doit à tout moment être en mesure d’assurer la prise en charge médicale de patients dans le cadre d’une situation sanitaire exceptionnelle. Afin d’assurer cette mission, il doit s’adapter pour prendre en charge en tout point du territoire national un nombre potentiellement important de victimes requérant des soins spécialisés, tout en garantissant la continuité et la qualité des soins des patients non directement impliqués dans l’événement. Le dispositif Orsan national établit le cadre national de l’organisation de la réponse du système de santé en constituant le volet sanitaire des plans de réponse nationaux intersectoriels. Il définit par ailleurs, le cadre d’organisation de l’appui aux régions impactées par une situation sanitaire exceptionnelle par la mobilisation de l’offre de soins nationale et par la mobilisation des renforts nationaux. L’ARS est en charge de l’élaboration du dispositif Orsan régional qui a pour objectif d’assurer la montée en puissance du système de santé. À ce titre, il coordonne la mobilisation des structures de soins et des professionnels de santé. Il est construit autour de 5 plans opérationnels de réponse qui d’une part organisent la mobilisation des opérateurs de soins et des professionnels de santé en fonction des conséquences d’une situation sanitaire exceptionnelle et de la typologie des patients, et d’autre part déterminent les parcours de soins et les filières de prise en charge des patients. Cette réponse s’appuie sur des dispositifs de mobilisation spécifiques à chaque opérateur de soins dans les tous les secteurs de l’offre de soins. Son élaboration représente un enjeu majeur garant de la qualité et de l’efficience de la réponse du système de santé face aux situations sanitaires exceptionnelles.
title: Predictive value of EI/B-mode ratio in strain elastography to predict breast cancer tumour grade
Creators: name: Grajo, Joseph
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Elastography
subject: Ultrasound
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To determine if the size change ratio of breast cancers on ultrasound elastography corresponds to tumour...
title: Educational Exhibit: Imaging of renal tract haemorrhage and its management
Creators: name: Bhalla, Vishal
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Interventional vascular
subject: Urinary Tract / Bladder
subject: Management
subject: CT-Angiography
subject: Catheter arteriography
subject: Arterial access
subject: Catheters
subject: Embolisation
subject: Haemorrhage

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: This exhibit aims to describe the various causes of arterial bleeding from the renal tract which may be iatrogenic, traumatic or spontaneous in nature. Previously catheter angiography was the only definitive imaging technique to investigate...
title: Smartphones, tablets and mobile applications for radiology
Creators: name: Székely, András
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Epidemiology
subject: Computer Applications-Teleradiology
subject: Computer Applications-General
subject: Teleradiology
subject: PACS
subject: Education and training

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: In this poster we will illustrate how smartphones and tablets can be used by diagnostic imaging professionals and residents, and introduce relevant applications that are available for their...
title: Imaging of endoleaks after aortic endoprosthesis
Creators: name: Porto, Annamaria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Grafts
subject: Aneurysms
subject: Stents
subject: Contrast agent-intravenous
subject: Complications
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: CT
subject: Interventional vascular
subject: Contrast agents
subject: Arteries / Aorta

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of our study is to assess the incidence of the different types of endoeaks after endovascular abdominal aortic and aorto-iliac aneurysm repair (EVAR) by imaging...
DETERMINANT MODEL OF CAPITAL ADEQUACY RATIO WITH INTERVENING VARIABLE NON PERFORMING LOAN
Creators: name: ZARA TANIA RAHMADI
name: PRISILA DAMAYANTY
name: LUQMAN HAKIM
Publisher: name: Zenodo
Year: 2024
Subjects: Institutional Ownership, Loan to Deposit Ratio, BOPO, Non-Performing Loan, Capital Adequacy Ratio.

description: Abstract

This research is intended to analyze and answer the inconsistencies in the results of previous research, as well as the phenomenon of Non-Performing Loans (NPL) which does not answer its effect on the Capital Adequacy Ratio (CAR). This is what prompted the researcher to conduct research again using a different time series and cross-sectional. This type of research is quantitative descriptive with a panel data multiple regression analysis method using a sample of 18 banking companies over five years. This research formula is to maximize the CAR value through NPL as an intervening variable using the research object of banking companies on the Indonesia Stock Exchange. Two research models are integrated into one and each goes through model selection test stages, Chow Test, Hausman Test, and Lagrange Multiplier Test. Results in the first research model; that LDR can explain its effect on NPL with a positive correlation as the applicable theory. Meanwhile, BOPO can explain its effect on NPL with a negative correlation, not as in theory. Results of the second research model; only IO can directly explain its effect on CAR, while other variables, either directly or indirectly, cannot explain its effect on CAR. The use of NPL as an intervening variable does not function to mediate CAR so that this variable cannot be used as a reference for predicting CAR. It is hoped that these results can provide maximum guidance for banking management.
title: Pitfalls in interpretation and diagnosing of small renal masses: how to avoid them
Creators: name: Goñi, Romina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Abdomen
subject: Kidney
subject: CT
subject: MR
subject: Education
subject: Pathology

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To analyze and characterize renal masses in order to avoid misunderstandings with the different imaging methods and mistaking in...
title: Cystic lesions of the pancreatic-duodenal region: a pictorial review
Creators: name: Ruivo, Catarina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Abdomen
subject: Pancreas
subject: Gastrointestinal tract
subject: CT
subject: MR
subject: Diagnostic procedure
subject: Cysts
subject: Inflammation
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To describe and illustrate the imaging findings of pancreatic and duodenal cystic lesions, emphasizing the contribution of cross-sectional imaging modalities to the differential...
title: Central venous access - The why, when , how and dealing with complications
Creators: name: Patel, Rafiuddin
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Interventional vascular
subject: Vascular
subject: Veins / Vena cava
subject: Ultrasound
subject: Fluoroscopy
subject: Venous access
subject: Complications
subject: Embolism / Thrombosis

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: We present the indications and contraindications for central venous access as well as a guide for trainees learning to perform the procedure. We also aim to highlight early and long-term complications of central venous access and the role of an...
Stimulated Slowing of Yb Atoms on the Narrow $^1S_0\rightarrow^3P_1$ Transition
Creators: name: Narong, Tanaporn Na
name: Liu, TianMin
name: Raghuram, Nikhil
name: Hollberg, Leo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We analyzed bichromatic and polychromatic stimulated forces for laser cooling and trapping of Yb atoms using only the narrow $^1S_0\rightarrow^3P_1$ transition. Our model is based on numerical solutions of optical Bloch equations for two-level atoms driven by multiple time-dependent fields combined with Monte-Carlo simulations, which account for realistic experimental conditions such as atomic beam divergence, geometry, and Gaussian laser modes. Using 1 W of laser power, we predict a loading rate of $\approx 10^8$ atoms/s into a 556 nm MOT with a slowing force of $\approx 60F_{rad}$. We show that a square wave modulation can produce similar stimulated forces with almost twice the velocity range and improve the MOT loading rate of Yb atoms by up to 70%.
Cold atoms in U(3) gauge potentials
Creators: name: Mandal, Ipsita
name: Bhattacharya, Atri
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We explore the effects of artificial $U(3)$ gauge potentials on ultracold atoms. We study background gauge fields with both non-constant and constant Wilson loops around plaquettes, obtaining the energy spectra in each case. The scenario of metal-insulator transition for irrational fluxes is also examined. Finally, we discuss the effect of such a gauge potential on the superfluid-insulator transition for bosonic ultracold atoms.
description: minor typos corrected; journal version
title: Enhanced tumour-targeted prostate biopsy through fusion of MRI to 3D transrectal ultrasound
Creators: name: Romagnoli, Cesare
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Technology assessment
subject: Computer Applications-3D
subject: Biopsy
subject: Ultrasound
subject: MR
subject: Pelvis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Objective To compare MRI-3D TRUS fusion prostate biopsywith the standard systematic, random biopsy for: Cancer detection rate Accuracy of cancer grading Background Presently, patients at risk for prostate cancer are selected with PSA levels and the...