cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Explorative Studies of an Innovative Superconducting Gantry
Creators: name: Pullia, Marco
name: Donetti, Marco
name: Felcini, Enrico
name: Frisella, Guglielmo
name: Mereghetti, Alessio
name: Mirandola, Alfredo
name: Pella, Andrea
name: Savazzi, Simone
name: Dassa, Luca
name: Karppinen, Mikko
name: Perini, Diego
name: Tommasini, Davide
name: Vretenar, Maurizio
name: Kurfürst, Christoph
name: Pivi, Mauro
name: Stock, Markus
name: De Matteis, Ernesto
name: Mariotto, Samuele
name: Prioli, Marco
name: Rossi, Lucio
name: Sabbatini, Lucia
name: Vannozzi, Alessandro
name: Piacentini, Luca
name: Ratkus, Andris
name: Torims, Toms
name: Vilcans, Janis
name: Benedetto, Elena
Publisher: name: Zenodo
Year: 2022
Subjects: Hadrontherapy
Gantry

description: The Heavy Ion Therapy Research Integration plus (HITRIplus) is an European project that aims to integrate and propel research and technologies related to cancer treatment with heavy ion beams. Among the ambitious goals of the project, a specific work package includes the design of a gantry for carbon ions, based on superconducting magnets. The first milestone to achieve is the choice of the fundamental gantry parameters, namely the beam optics layout, the superconducting magnet technology, and the main user requirements. Starting from a reference 3T design, the collaboration widely explored dozens of possible gantry configurations at 4T, aiming to find the best compromise in terms of footprint, capital cost, and required R&D. We present here a summary of these configurations, underlying the initial correlation between the beam optics, the mechanics and the main superconducting dipoles design: the bending field (up to 4T), combined function features (integrated quadrupoles), magnet aperture (up to 90mm), and angular length (30° – 45°). The resulting main parameters are then listed, compared, and used to drive the choice of the best gantry layout to be developed in HITRIplus.
title: Prevalence of CT Abnormalities that Contribute to Exclusion of Potential Renal Donors
Creators: name: Chu, Linda
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Kidney
subject: CT-Angiography
subject: Diagnostic procedure
subject: Transplantation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Laparoscopic nephrectomy has become the preferred surgical procedure for procuring kidneys from living donors since its first introduction in 1995 [1]. The left kidney is generally preferred for laparoscopic nephrectomy in living donors because of...
$*$-Freeness in Finite Tensor Products
Creators: name: Collins, Benoit
name: Lamarre, Pierre Yves Gaudreau
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this paper, we consider the following question and variants thereof: given $\mathbf D:=\big(a_{1;i}\otimes\cdots\otimes a_{K;i}:i\in I\big)$, a collection of elementary tensor non-commutative random variables in the tensor product of probability spaces $(\mathcal A_1\otimes\cdots\otimes\mathcal A_K,ϕ_1\otimes\cdots\otimesϕ_K)$, when is $\mathbf D$ $*$-free? (See Section 1.2 for a precise formulation of this problem.) Settling whether or not freeness occurs in tensor products is a recurring problem in operator algebras, and the following two examples provide a natural motivation for the above question: (A) If $(a_{1;i}:i\in I)$ is a $*$-free family of Haar unitary variables and $a_{k,i}$ are arbitrary unitary variables for $k\geq2$, then the $*$-freeness persists at the level of the tensor product $\mathbf D$. (B) A converse of (A) holds true if all variables $a_{k;i}$ are group-like elements (see Corollary 1.7 of Proposition 1.6). It is therefore natural to seek to understand the extent to which such simple characterizations hold true in more general cases. While our results fall short of a complete characterization, we make notable steps toward identifying necessary and sufficient conditions for the freeness of $\mathbf D$. For example, we show that under evident assumptions, if more than one family $(a_{k,i}:i\in I)$ contains non-unitary variables, then the tensor family fails to be $*$-free (see Theorem 1.8 (1)).
title: Beyond technology
title: demand-side solutions for climate change mitigation
titleType: Subtitle
Creators: name: Creutzig, Felix
name: Fernandez Milan, Blanca
name: Haberl, Helmut
name: Khosla, Radhika
name: Mulugetta, Yacob
name: Seto, Karen C.
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 330 Wirtschaft
subject: agriculture
subject: behavior
subject: buildings
subject: climate change mitigation
subject: demand-side measures
subject: end use
subject: greenhouse gas emissions
subject: lifestyle
subject: transportation
subject: urban infrastructure
subject: structural change

description: The assessment literature on climate change solutions to date has emphasized technologies and options based on cost-effectiveness analysis. However, many solutions to climate change mitigation misalign with such analytical frameworks. Here, we examine demand-side solutions, a crucial class of mitigation options that go beyond technological specification and costbenefit analysis. To do so, we synthesize demand-side mitigation options in the urban, building, transport, and agricultural sectors. We also highlight the specific nature of demand-side solutions in the context of development. We then discuss key analytical considerations to integrate demand-side options into overarching assessments on mitigation. Such a framework would include infrastructure solutions that interact with endogenous preference formation. Both hard infrastructures, such as the built environment, and soft infrastructures, such as habits and norms, shape behavior and as a consequence offer significant potential for reducing overall energy demand and greenhouse gas emissions. We conclude that systemic infrastructural and behavioral change will likely be a necessary component of a transition to a low-carbon society.
title: CT Nephrogram – an overlooked sign that may help you reach the diagnosis
Creators: name: Simões, André
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Kidney
subject: CT
subject: Education
subject: Infection
subject: Ischaemia / Infarction
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1. Review normal nephrographic physiology and pattern 2. Present and illustrate abnormal CT nephrographic patterns with the respective differential diagnosis 3. Correlate CT nephrogram with other imaging findings and clinical features, to reach the...
Roger Marston 0. F. M. (f 1303), ein englischer Vertreter des Augustinismus
Creators: name: Pelster, Franz
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 4 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 4
Stable deep reinforcement learning method by predicting uncertainty in rewards as a subtask
Creators: name: Suzuki, Kanata
name: Ogata, Tetsuya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In recent years, a variety of tasks have been accomplished by deep reinforcement learning (DRL). However, when applying DRL to tasks in a real-world environment, designing an appropriate reward is difficult. Rewards obtained via actual hardware sensors may include noise, misinterpretation, or failed observations. The learning instability caused by these unstable signals is a problem that remains to be solved in DRL. In this work, we propose an approach that extends existing DRL models by adding a subtask to directly estimate the variance contained in the reward signal. The model then takes the feature map learned by the subtask in a critic network and sends it to the actor network. This enables stable learning that is robust to the effects of potential noise. The results of experiments in the Atari game domain with unstable reward signals show that our method stabilizes training convergence. We also discuss the extensibility of the model by visualizing feature maps. This approach has the potential to make DRL more practical for use in noisy, real-world scenarios.
description: Published as a conference paper at ICONIP 2020
On the continuity of the geometric side of the trace formula
Creators: name: Finis, Tobias
name: Lapid, Erez
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We extend the geometric side of Arthur's non-invariant trace formula for a reductive group $G$ defined over $\mathbb{Q}$ continuously to a natural space $\mathcal{C}(G(\mathbb{A}^1))$ of test functions which are not necessarily compactly supported. The analogous result for the spectral side was obtained in [MR2811597]. The geometric side is decomposed according to the following equivalence relation on $G(\mathbb{Q})$: $γ_1\simγ_2$ if $γ_1$ and $γ_2$ are conjugate in $G(\bar{\mathbb{Q}})$ and their semisimple parts are conjugate in $G(\mathbb{Q})$. All terms in the resulting decomposition are continuous linear forms on the space $\mathcal{C}(G(\mathbb{A})^1)$, and can be approximated (with continuous error terms) by naively truncated integrals.
description: Fixed a mistake found by Werner Hoffmann Explicated dependence on level
Traditional Cultural Properties of Four Tribes: The Fence Lake Mine Project - Volume II
Creators: name: Roessel, Katelyn
Publisher: name: The Institute of the North American West
Year: 1993
Subjects: subject: Fence Lake Coal Mine
valueUri: https://core.tdar.org/browse/geographic-keyword/82942/fence-lake-coal-mine
subject: Fence Lake, NM
valueUri: https://core.tdar.org/browse/geographic-keyword/83199/fence-lake-nm
subject: Western New Mexico
valueUri: https://core.tdar.org/browse/geographic-keyword/3027/western-new-mexico
subject: Zuni Salt Lake
valueUri: https://core.tdar.org/browse/geographic-keyword/86316/zuni-salt-lake
subject: Cerro Prieto
valueUri: https://core.tdar.org/browse/geographic-keyword/86315/cerro-prieto
subject: Navajo
valueUri: https://core.tdar.org/browse/culture-keyword/224/navajo
subject: ACOMA
valueUri: https://core.tdar.org/browse/culture-keyword/6821/acoma
subject: Hopi
valueUri: https://core.tdar.org/browse/culture-keyword/7591/hopi
subject: Zuni
valueUri: https://core.tdar.org/browse/culture-keyword/40/zuni
subject: Zuni Salt Lake
valueUri: https://core.tdar.org/browse/other-keyword/169880/zuni-salt-lake
subject: Ramah Navajo
valueUri: https://core.tdar.org/browse/other-keyword/169881/ramah-navajo

description: Volume II 4. T. J. Ferguson and Eric Polingyouma. "Sio Onga: An Ethnohistory of Hopi Use of the Zuni Salt Lake." [Confidential Report--Restricted Access] 5. Alfred E. Dittert, Jr. and Ward Alan Minge. "An Ethnohistoric Account of the Traditional Cultural Properties Identified by the Acoma Tribe in and Adjacent to the SRP Fence Lake Mine Project Area." 6. Jean Ann Mercer. "Fence Lake Coal Mine Project: Potential Impacts to Traditional Cultural Properties of the Ramah Navajo." 7. E. Richard Hart and T. J. Ferguson. "The Fence Lake Mine Project: Conclusions." 8. Appendix of Meetings. In 1991 the Salt River Project Agricultural Improvement and Power District (SRP), a non-profit, public utility based in the state of Arizona, contracted with the Institute of the NorthAmerican West (INA W), a non-profit educational institution, to conduct ethnohistorical research pertaining to Native American traditional cultural properties that may be impacted by the development of the Fence Lake Mine Project. The Native American groups that were the focus of research included the Acoma Tribe, the Hopi Tribe, the Ramah Chapter of the Navajo Nation, and the Zuni Tribe. The Fence Lake Mine Project entails a proposed coal mine in western New Mexico, with an associated transportation corridor for conveying coal to the Coronado Generating Plant in eastern Arizona. The proposed SRP coal mine encompasses a tract of land approximately 17,600 acres in size, located in an area that surrounds Cerro Prieto, a prominent volcanic cone about nine and one half miles northeast of Zuni Salt Lake (Hart and Othole Figure 1). The proposed mine is near the tiny community of Fence Lake, New Mexico, from which it derives its name.
Total mean curvature, scalar curvature, and a variational analog of Brown-York mass
Creators: name: Mantoulidis, Christos
name: Miao, Pengzi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the supremum of the total mean curvature on the boundary of compact, mean-convex 3-manifolds with nonnegative scalar curvature, and a prescribed boundary metric. We establish an additivity property for this supremum and exhibit rigidity for maximizers assuming the supremum is attained. When the boundary consists of 2-spheres, we demonstrate that the finiteness of the supremum follows from the previous work of Shi-Tam and Wang-Yau on the quasi-local mass problem in general relativity. In turn, we define a variational analog of Brown-York quasi-local mass without assuming that the boundary 2-sphere has positive Gauss curvature.
description: Final version; incorporates changes made for journal
Full characterization of a carbon nanotube parallel double quantum dot
Creators: name: Abulizi, Gulibusitan
name: Baumgartner, Andreas
name: Schönenberger, Christian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have measured the differential conductance of a parallel carbon nanotube (CNT) double quantum dot (DQD) with strong inter-dot capacitance and inter-dot tunnel coupling. Nominally, the device consists of a single CNT with two contacts. However, we identify two sets of Coulomb blockade (CB) diamonds that do not block transport individually, which suggest that two quantum dots (QDs) are contacted in parallel. We find strong and periodic anti-crossings in the gate and bias dependence, which are only possible if the QDs have similar characteristics. We discuss qualitatively the level spectrum and the involved transport processes in this device and extract the DQD coupling parameters. These results lead us to believe that clean and undoped QDs are formed parallel to the CNT axis, possibly on the outer and inner shells of a multi-wall CNT, or in a double-stranded CNT bundle.
description: 5 pages, 3 figures
title: Medical devices of the abdomen and pelvis – What the radiologist needs to know
Creators: name: Simões, André
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Abdomen
subject: Pelvis
subject: Conventional radiography
subject: Education
subject: Foreign bodies
subject: Prostheses

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The aim of this exhibit is to review the devices frequently found in the abdomen and pelvis, to learn how to recognize them and evaluate its proper...
Holographic entanglement negativity for a single subsystem in conformal field theories with a conserved charge
Creators: name: Mondal, Sayid
name: Paul, Boudhayan
name: Sengupta, Gautam
name: Sharma, Punit
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We utilize a holographic construction to compute the entanglement negativity for bipartite mixed state configurations of a single subsystem in $CFT_d$s with a conserved charge dual to bulk $AdS_{d+1}$ geometries. In this context, we obtain the holographic entanglement negativity for single subsystems with long rectangular strip geometries in $CFT_d$s with a conserved charge dual to bulk non extremal and extremal Reissner-Nordström (RN)-$AdS_{d+1}$ black holes at the leading order in a perturbation theory. We demonstrate that the holographic entanglement negativity computed involves the elimination of thermal contributions at the leading order confirming earlier results in the literature. This also conforms to quantum information theory expectations and constitutes further consistency checks for the holographic construction.
description: 29 pages, no figures, 2 appendices, matches the published version
title: Medical devices of chest – What the radiologist needs to know
Creators: name: Simões, André
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Thorax
subject: Conventional radiography
subject: Image compression
subject: Complications
subject: Prostheses
subject: Foreign bodies

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1. Illustrate and describe the most common medical chest devices seen by radiologists in a daily basis, to learn how to recognize them and to evaluate their correct position. 2. Describe common complications associated with its...
Deep spectroscopy of nearby galaxy clusters: I. Spectroscopic luminosity function of Abell 85
Creators: name: Agulli, I.
name: Aguerri, J. A. L.
name: Sánchez-Janssen, R.
name: Vecchia, C. Dalla
name: Diaferio, A.
name: Barrena, R.
name: Palmero, L. Dominguez
name: Yu, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a new deep spectroscopic catalogue for Abell 85, within 3.0 $\times$ 2.6 Mpc$^2$ and down to $M_{r} \sim M_{r}^* +6$. Using the Visible Multi-Object Spectrograph at the Very Large Telescope (VIMOS@VLT) and the AutoFiber 2 at the William Herschel Telescope (AF2@WHT), we obtained almost 1,430 new redshifts for galaxies with $m_r \leq 21$ mag and $\langle μ_{e,r} \rangle \leq 24$ mag arcsec$^{-2}$. These redshifts, together with SDSS-DR6 and NED spectroscopic information, result in 460 confirmed cluster members. This dataset allows the study of the luminosity function (LF) of the cluster galaxies covering three orders of magnitudes in luminosities. The total and radial LFs are best modelled by a double Schechter function. The normalized LFs show that their bright ($M_{r} \leq -21.5$) and faint ($M_{r}\geq -18.0$) ends are independent of clustercentric distance and similar to the field LFs unlike the intermediate luminosity range ($-21.5 \leq M_{r} \leq -18.0$). Similar results are found for the LFs of the dominant types of galaxies: red, passive, virialized and early-infall members. On the contrary, the LFs of blue, star forming, non-virialized and recent-infall galaxies are well described by a single Schechter function. These populations contribute to a small fraction of the galaxy density in the innermost cluster region. However, in the outskirts of the cluster, they have similar densities to red, passive, virialized and early-infall members at the LF faint end. These results confirm a clear dependence of the colour and star formation of Abell 85 members in the cluster centric distance.
description: 15 pages, 12 figures, accepted for publication on MNRAS
title: Evaluation of the colon with CT in Emergency Department
Creators: name: Ferreira, Ivo
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Ultrasound
subject: CT
subject: Conventional radiography
subject: Gastrointestinal tract
subject: Emergency
subject: Abdomen
subject: Diagnostic procedure
subject: Inflammation
subject: Volvulus
subject: Diverticula

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: - To identify the main pathologies of the colon approached with CT, in the emergency department. - To present typical imaging findings, specific of each...
General $δ$-shell interactions for the two-dimensional Dirac operator: self-adjointness and approximation
Creators: name: Cassano, Biagio
name: Lotoreichik, Vladimir
name: Mas, Albert
name: Tušek, Matěj
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35P05, 35Q40, 81Q10

description: In this work we consider the two-dimensional Dirac operator with general local singular interactions supported on a closed curve. A systematic study of the interaction is performed by decomposing it into a linear combination of four elementary interactions: electrostatic, Lorentz scalar, magnetic, and a fourth one which can be absorbed by using unitary transformations. We address the self-adjointness and the spectral description of the underlying Dirac operator, and moreover we describe its approximation by Dirac operators with regular potentials.
Die „aequalitas iustitiae" in ihrer Beziehung zur „aequivalentia obiectorum" bei strengen Rechtsverbindlichkeiten
Creators: name: Hürth, Franz
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 4 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 4
Linearized Asymptotic Stability for Fractional Differential Equations
Creators: name: Cong, N. D.
name: Doan, T. S.
name: Siegmund, S.
name: Tuan, H. T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We prove the theorem of linearized asymptotic stability for fractional differential equations. More precisely, we show that an equilibrium of a nonlinear Caputo fractional differential equation is asymptotically stable if its linearization at the equilibrium is asymptotically stable. As a consequence we extend Lyapunov's first method to fractional differential equations by proving that if the spectrum of the linearization is contained in the sector $\{λ\in \C : |\arg λ| > \frac{απ}{2}\}$ where $α> 0$ denotes the order of the fractional differential equation, then the equilibrium of the nonlinear fractional differential equation is asymptotically stable.
Topological Varma superfluid in optical lattices
Creators: name: Di Liberto, M.
name: Hemmerich, A.
name: Smith, C. Morais
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Topological states of matter are peculiar quantum phases showing different edge and bulk transport properties connected by the bulk-boundary correspondence. While non-interacting fermionic topological insulators are well established by now and have been classified according to a ten-fold scheme, the possible realisation of topological states for bosons has not been much explored yet. Furthermore, the role of interactions is far from being understood. Here, we show that a topological state of matter exclusively driven by interactions may occur in the p-band of a Lieb optical lattice filled with ultracold bosons. The single-particle spectrum of the system displays a remarkable parabolic band-touching point, with both bands exhibiting non-negative curvature. Although the system is neither topological at the single-particle level, nor for the interacting ground state, on-site interactions induce an anomalous Hall effect for the excitations, carrying a non-zero Chern number. Our work introduces an experimentally realistic strategy for the formation of interaction-driven topological states of bosons.
description: 6+6 pages
In-air Knotting of Rope using Dual-Arm Robot based on Deep Learning
Creators: name: Suzuki, Kanata
name: Kanamura, Momomi
name: Suga, Yuki
name: Mori, Hiroki
name: Ogata, Tetsuya
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this study, we report the successful execution of in-air knotting of rope using a dual-arm two-finger robot based on deep learning. Owing to its flexibility, the state of the rope was in constant flux during the operation of the robot. This required the robot control system to dynamically correspond to the state of the object at all times. However, a manual description of appropriate robot motions corresponding to all object states is difficult to be prepared in advance. To resolve this issue, we constructed a model that instructed the robot to perform bowknots and overhand knots based on two deep neural networks trained using the data gathered from its sensorimotor, including visual and proximity sensors. The resultant model was verified to be capable of predicting the appropriate robot motions based on the sensory information available online. In addition, we designed certain task motions based on the Ian knot method using the dual-arm two-fingers robot. The designed knotting motions do not require a dedicated workbench or robot hand, thereby enhancing the versatility of the proposed method. Finally, experiments were performed to estimate the knotting performance of the real robot while executing overhand knots and bowknots on rope and its success rate. The experimental results established the effectiveness and high performance of the proposed method.
description: Accepted at IROS 2021
Cavity-assisted Dynamical Quantum Phase Transition at Bifurcation Points
Creators: name: Tian, Lin
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Coupling a quantum many-body system to a cavity can create bifurcation points in its phase diagram, where the ground state makes sudden switchings between different phases. Here we study the dynamical quantum phase transition of a transverse field Ising model coupled to a cavity. We show that an infinitesimal quench of the cavity driving at the bifurcation points induces gradual evolution of the Ising model to pass across the quantum critical point and excites quasiparticles. Meanwhile, when the driving is slowly ramped through the bifurcation points, the adiabaticity of the evolution and the number of quasiparticle excitations are strongly affected by cavity-induced nonlinearity. Introducing and manipulating cavity-induced nonlinearity hence provide an effective approach to control the dynamics and the adiabaticity of adiabatic quantum processes. Our model can be implemented with superconducting quantum circuits.
description: 11 pages, 6 figures, published
Sparse and Smooth Functional Data Clustering
Creators: name: Centofanti, Fabio
name: Lepore, Antonio
name: Palumbo, Biagio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: A new model-based procedure is developed for sparse clustering of functional data that aims to classify a sample of curves into homogeneous groups while jointly detecting the most informative portions of domain. The proposed method is referred to as sparse and smooth functional clustering (SaS-Funclust) and relies on a general functional Gaussian mixture model whose parameters are estimated by maximizing a log-likelihood function penalized with a functional adaptive pairwise penalty and a roughness penalty. The former allows identifying the noninformative portion of domain by shrinking the means of separated clusters to some common values, whereas the latter improves the interpretability by imposing some degree of smoothing to the estimated cluster means. The model is estimated via an expectation-conditional maximization algorithm paired with a cross-validation procedure. Through a Monte Carlo simulation study, the SaS-Funclust method is shown to outperform other methods already appeared in the literature, both in terms of clustering performance and interpretability. Finally, three real-data examples are presented to demonstrate the favourable performance of the proposed method. The SaS-Funclust method is implemented in the $\textsf{R}$ package $\textsf{sasfunclust}$, available online at https://github.com/unina-sfere/sasfunclust.
title: Magnetic resonance imaging in patients affected by autosomal dominant polycystic kidney disease (ADPKD): assessment of renal cyst and total kidney volumes after 24 months of pharmacological treatment with RAPAMYCIN - a randomized, controlled study
Creators: name: Bristogiannis, Christos
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Kidney
subject: MR
subject: Cysts
subject: Genetic defects

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of our study was to: Evaluate by MRI the effectiveness of rapamycin to reduce the renal cyst and total kidney volumes in patients with autosomal dominant policistic kidney disease (ADPKD) type I, after 24 months of treatment; Evaluate the...
Type II supernovae as probes of environment metallicity: observations of host HII regions
Creators: name: Anderson, J. P.
name: Gutierrez, C. P.
name: Dessart, L.
name: Hamuy, M.
name: Galbany, L.
name: Morrell, N. I.
name: Stritzinger, M. D.
name: Phillips, M. M.
name: Folatelli, G.
name: Boffin, H. M. J.
name: de Jaeger, T.
name: Kuncarayakti, H.
name: Prieto, J. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spectral modelling of SNII atmospheres indicates a clear dependence of metal line strengths on progenitor metallicity. This motivates further work to evaluate the accuracy with which these SNe can be used as metallicity indicators. To assess this accuracy we present a sample of SNII HII-region spectroscopy, from which environment abundances are derived. These environment abundances are compared to the observed strength of metal lines in SN spectra. Combining our sample with measurements from the literature, we present oxygen abundances of 119 host HII regions, by extracting emission line fluxes and using abundance diagnostics. Then, following Dessart et al., these abundances are compared to equivalent widths of Fe 5018 A at various time and colour epochs. Our distribution of inferred SNII host HII-region abundances has a range of ~0.6 dex. We confirm the dearth of SNeII exploding at metallicities lower than those found (on average) in the Large Magellanic Cloud. The equivalent width of Fe 5018 A at 50 days post explosion shows a statistically significant correlation with host HII-region oxygen abundance. The strength of this correlation increases if one excludes abundance measurements derived far from SN explosion sites. The correlation significance also increases if we only analyse a 'gold' IIP sample, and if a colour epoch is used in place of time. In addition, no evidence is found of correlation between progenitor metallicity and SN light-curve or spectral properties - except for that stated above with respect to Fe 5018 A equivalent width - suggesting progenitor metallicity is not a driving factor in producing the diversity observed in our sample. This study provides observational evidence of the usefulness of SNII as metallicity indicators. We finish with a discussion of the methodology needed to use SN spectra as independent metallicity diagnostics throughout the Universe.
description: Accepted for publication in Astronomy and Astrophycis
Deep Contrastive Patch-Based Subspace Learning for Camera Image Signal Processing
Creators: name: Yang, Yunhao
name: Wang, Yi
name: Bajaj, Chandrajit
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Camera Image Signal Processing (ISP) pipelines can get appealing results in different image signal processing tasks. Nonetheless, the majority of these methods, including those employing an encoder-decoder deep architecture for the task, typically utilize a uniform filter applied consistently across the entire image. However, it is natural to view a camera image as heterogeneous, as the color intensity and the artificial noise are distributed vastly differently, even across the two-dimensional domain of a single image. Varied Moire ringing, motion blur, color-bleaching, or lens-based projection distortions can all potentially lead to a heterogeneous image artifact filtering problem. In this paper, we present a specific patch-based, local subspace deep neural network that improves Camera ISP to be robust to heterogeneous artifacts (especially image denoising). We call our three-fold deep-trained model the Patch Subspace Learning Autoencoder (PSL-AE). The PSL-AE model does not make assumptions regarding uniform levels of image distortion. Instead, it first encodes patches extracted from noisy a nd clean image pairs, with different artifact types or distortion levels, by contrastive learning. Then, the patches of each image are encoded into corresponding soft clusters within their suitable latent sub-space, utilizing a prior mixture model. Furthermore, the decoders undergo training in an unsupervised manner, specifically trained for the image patches present in each cluster. The experiments highlight the adaptability and efficacy through enhanced heterogeneous filtering, both from synthesized artifacts but also realistic SIDD image pairs.
Kammel, W.: Einführung in die pädagogische Wertlehre
Creators: name: Gemmel, J.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 3 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 3
title: Enabling system-wide radiology quality assurance and improvement
Creators: name: Koff, Nadine
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Computer applications
subject: eHealth

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: With diagnostic reports facing increased scrutiny in many jurisdictions, radiologists need to be proactive with regards to quality and accuracy. To quote W.E. Deming: “Inspection with the aim of finding the bad ones and throwing them out is too...
A framework for agent based simulation of demand responsive transport systems
Creators: name: Bischoff, Joschka
name: Soeffker, Ninja
name: Maciejewski, Michał
Publisher: name: Technische Universität Berlin
Year: 2016
Subjects: subject: 388 Verkehr; Landverkehr
subject: 005 Computerprogrammierung, Programme, Daten
subject: MATSim
subject: DRT
subject: shuttle services
subject: DVRP
subject: approximate dynamic programming
subject: multi agent transport simulation
subject: demand responsive transport
subject: dynamic vehicle routing problem

description: Demand responsive transport (DRT), such as shared mini busses, have become a viable form of public transport mainly in rural areas in recent years. In contrast to ordinary schedule-based services, DRT systems come in many different shapes and forms and are usually customised to the environment they operate in. E.g., they might be restricted to certain user groups or only operate in specific areas or with a specific fixed terminus. With advances in information and communications technology (ICT) and the possibility of driverless operations in the future, DRT systems may become an attractive additional mode also in urban and inter-urban transport. This brings the necessity to assess and evaluate DRT services and possible business models, with transport simulations being one possible way. This study introduces a framework for an extensible, open source shared minibus service simulation. Based on the agent based transport simulation MATSim and its existing DVRP extension, the extension provides DRT services as an additional mode to the synthetic population of a MATSim scenario. The module allows assigning vehicles to groups according to different dispatch algorithms shaped to the actual use case. In a first case study, a DRT system complements ordinary public transport and car infrastructure on the heavily used commuter relation between Braunschweig and Wolfsburg. During peak times, average travel times per traveler over all modes between the two cities can be reduced by 5 minutes using a fleet of 50 8-seat-vehicles. In a second case study, a DRT system is used to shuttle passengers in an area with non-optimal public transport access to the train station in Braunschweig. With given capacity constraints, the optimizer has to decide which customers to serve in order to achieve an on-time arrival for passengers
Fröbes, Iosephus: Psychologia speculative. Tommus I.: Psychologia sensitiva
Creators: name: Willwoll, A.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 3 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 3
Multi-scale S-fraction reduced-order models for massive wavefield simulations
Creators: name: Druskin, Vladimir
name: Mamonov, Alexander V.
name: Zaslavsky, Mikhail
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M55, 35L05

description: We developed a novel reduced-order multi-scale method for solving large time-domain wavefield simulation problems. Our algorithm consists of two main stages. During the first "off-line" stage the fine-grid operator (of the graph Laplacian type} is partitioned on coarse cells (subdomains). Then projection-type multi-scale reduced order models (ROMs) are computed for the coarse cell operators. The off-line stage is embarrassingly parallel as ROM computations for the subdomains are independent of each other. It also does not depend on the number of simulated sources (inputs) and it is performed just once before the entire time-domain simulation. At the second "on-line" stage the time-domain simulation is performed within the obtained multi-scale ROM framework. The crucial feature of our formulation is the representation of the ROMs in terms of matrix Stieltjes continued fractions (S-fractions). The layered structure of the S-fraction introduces several hidden layers in the ROM representation, that results in the block-tridiagonal dynamic system within each coarse cell. This allows us to sparsify the obtained multi-scale subdomain operator ROMs and to reduce the communications between the adjacent subdomains which is highly beneficial for a parallel implementation of the on-line stage. Our approach suits perfectly the high performance computing architectures, however in this paper we present rather promising numerical results for a serial computing implementation only. These results include 3D acoustic and multi-phase anisotropic elastic problems.
description: 31 pages, 11 figures
Rothacker, Erich: Logik und Sytsematik der Geistestwissenschaften
Creators: name: Claßen, L.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 3 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 3
An involution on derangements preserving excedances and right-to-left minima
Creators: name: Alexandersson, Per
name: Kebede, Frether Getachew
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05A19

description: We give a bijective proof of a result by R.~Mantaci and F.~Rakotondrajao from 2003, regarding even and odd derangement with a fixed number of excedances. We refine this result by also considering the set of right-to-left minima.
title: Ultrasound for Detection of High Altitude Pulmonary Edema - The APEX 3 study
Creators: name: Van Beek, Edwin
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Occupational / Environmental hazards
subject: Biological effects
subject: Screening
subject: Physiological studies
subject: Ultrasound
subject: Thorax
subject: Respiratory system

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: APEX is a Scottish charity with a strong history of high altitude experimentation. This expedition (APEX-3) to the Bolivian Andes in the summer of 2011 (fig 1), aimed to build upon this foundation, and upon the previous research in the field to...
Superconducting phase diagram of the paramagnetic one-band Hubbard model
Creators: name: Kreisel, Andreas
name: Roemer, Astrid T.
name: Hirschfeld, Peter J.
name: Andersen, Brian M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study spin-fluctuation-mediated superconductivity in the one-band Hubbard model. Higher order effective interactions in $U$ give rise to a superconducting instability which is very sensitive to changes in the Fermi surface topology arising as a function of doping and changes in the band structure. We show the superconducting phase diagram as a function of doping and next-nearest neighbor hopping in the limit of very small Coulomb interaction strength and discuss peculiarities arising at the phase boundaries separating different superconducting domains.
description: 6 pages, 4 figures
Marketing mit Instagram
Creators: name: Nufer, Gerd
name: Lenzen, Caroline Verena
Publisher: name: Universität Tübingen
Year: 2017
Subjects: subject: Marketing , Social Media , Instagram
subject: 330

description: In einer reizüberfluteten Konsumgesellschaft gestaltet es sich nicht immer einfach, potentielle Kunden über den passenden Kanal zu erreichen. Für die Markenpositionierung müssen steigende Budgets in die Produktion von qualitativ hochwertigen Inhalten investiert werden, um durch den wachsenden digitalen Wettbewerb Authentizität und Relevanz für den Konsumenten zu wahren. Dabei ist der Fokus längst von der reinen Werbebotschaft zum "Storytelling" gewandert. Die Bedeutung der Erlebnisqualität einer Marke rückt in den Vordergrund, denn die Zielgruppe möchte nicht nur den objektiven Mehrwert erfahren, sondern zugleich eine spannende Geschichte, die sie auch selbst mit dem Produkt oder der Dienstleistung erleben können. Durch die Zunahme des mobilen Konsums von Content finden gerade soziale Netzwerke wie Instagram bei der Planung der Marketing-Aktivitäten eines Unternehmens steigende Beachtung. Im Textileinzelhandel wird diese Erkenntnis bereits seit längerer Zeit aktiv genutzt, nicht so im deutschen Lebensmitteleinzelhandel. Vor diesem Hintergrund stellt sich die Frage, ob eine ästhetische Inszenierung von Lebensmitteln auf Instagram überhaupt beim Rezipienten ankommt? Die Antwort ist eindeutig: Amerikanische Unternehmen wie Wholefoods machen es vor. Mit über 1,9 Millionen Abonnenten und fast 2.500 geposteten Beiträgen (Stand Februar 2017) erfreut sich das Unternehmensprofil des Lebensmitteleinzelhändlers aus Texas großer Beliebtheit. Marketing mit Instagram und Le-bensmittel kann also erfolgreich verknüpft werden, aber wie? Dies soll im Rahmen der vorliegenden Arbeit untersucht werden.
title: Role of Tomosynthesis in assessing the size of the breast lesion
Creators: name: Raghavan, Bagyam
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pathology
subject: Outcomes analysis
subject: Ultrasound
subject: Mammography
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To assess the role of 3D tomosynthesis in the evaluation of the size of malignant breast lesions and to compare it with the size in 2D, Ultrasound and final Histopatholgy. This is a preliminary study to investigate the ability of 3D Tomosynthesis in...
Teaching a Massive Open Online Course on Natural Language Processing
Creators: name: Artemova, Ekaterina
name: Apishev, Murat
name: Sarkisyan, Veronika
name: Aksenov, Sergey
name: Kirjanov, Denis
name: Serikov, Oleg
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: This paper presents a new Massive Open Online Course on Natural Language Processing, targeted at non-English speaking students. The course lasts 12 weeks; every week consists of lectures, practical sessions, and quiz assignments. Three weeks out of 12 are followed by Kaggle-style coding assignments. Our course intends to serve multiple purposes: (i) familiarize students with the core concepts and methods in NLP, such as language modeling or word or sentence representations, (ii) show that recent advances, including pre-trained Transformer-based models, are built upon these concepts; (iii) introduce architectures for most demanded real-life applications, (iv) develop practical skills to process texts in multiple languages. The course was prepared and recorded during 2020, launched by the end of the year, and in early 2021 has received positive feedback.
description: To appear in the Proceedings of the Fifth Workshop on Teaching NLP @ NAACL
Schöllgen, W.: Das Problem der Willensfreiheit bei Heinrich vn Gent und Hervenus Natais
Creators: name: Pelster, Fr.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 3 Nr. 3 (1928): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 3, Heft 3
An $(\infty,2)$-categorical pasting theorem
Creators: name: Hackney, Philip
name: Ozornova, Viktoriya
name: Riehl, Emily
name: Rovelli, Martina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18N65, 55U35, 18N10

description: We show that any pasting diagram in any $(\infty,2)$-category has a homotopically unique composite. This is achieved by showing that the free 2-category generated by a pasting scheme is the homotopy colimit of its cells as an $(\infty,2)$-category. We prove this explicitly in the simplicial categories model and then explain how to deduce the model-independent statement from that calculation.
description: 42 pages, comments welcome; v2: new section on related work with updated references; v3: moved the analysis of pushouts of Dwyer maps to arXiv:2205.02353 in order to prove a more general version of the result than is needed here; v4: final version
Enhancement of the electrocaloric cooling by electric field reversal: simulation and experiment
Creators: name: Ma, Yang-Bin
name: Novak, Nikola
name: Koruza, Jurij
name: Yang, Tongqing
name: Albe, Karsten
name: Xu, Bai-Xiang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An improved thermodynamic cycle is proposed, where the cooling effect of an electrocaloric refrigerant is enhanced by applying a reversed electric field. In contrast to conventional adiabatic heating or cooling by on-off cycles of the external electric field, applying a reversed field is significantly improving the cooling efficiency, since the variation in configurational entropy is increased. By comparing results from computer simulations using Monte-Carlo algorithms and experiments using direct electrocaloric measurements, we show that the electrocaloric cooling efficiency can be enhanced by more than 20\% in standard ferroelectrics and also relaxor ferroelectrics, like Pb(Mg$_{1/3}$/Nb$_{2/3}$)$_{0.71}$Ti$_{0.29}$O$_3$.