cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Freeze-in and freeze-out of sterile neutrino dark matter
Creators: name: Coy, Rupert
name: Schmidt, Michael A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A sterile neutrino with a keV-scale mass is a compelling dark matter candidate. We propose a new production mechanism involving the decay and annihilation of a complex scalar singlet with a Higgs portal coupling which develops a vacuum expectation value. The interactions of the resulting pseudo Nambu-Goldstone boson may thermalise the dark sector. We determine the region of parameter space where dark sector thermalisation is reached and discuss the most relevant cosmological observables. The scenario can be considered as the combination of a freeze-in of the dark sector followed by relativistic freeze-out.
description: 41 pages, 9 figures; v2: Version accepted by JCAP, extended discussions of sterile neutrino and pNGB couplings and of DM decay channels in section 2, corrected Eqs. 70 and 72, minor modifications to Figs. 6 and 7, typos fixed; results qualitatively unchanged; v3: corrected error in pNGB coupling to neutrinos in Eq. 14 and related discussion; discussion of sterile neutrino DM production unchanged
Wearables and smart skin devices - How can they shape the future of dermatology? A scoping review
Creators: name: Ziehfreund, Stefanie
name: Kiani, Charlotte
name: Zink, Alexander
name: Steiner, Charlotte
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Analytical, Diagnostic and Therapeutic Techniques and Equipment
subject: Medical Specialties
subject: Dermatology
subject: #smartskin #wearables #dermatology #digitalmedicine

description: A scoping review about the research state of wearables and in specific smart skin devices in dermatology
Low-complexity full-field ultrafast nonlinear dynamics prediction by a convolutional feature separation modeling method
Creators: name: Yang, Hang
name: Zhao, Haochen
name: Niu, Zekun
name: Pu, Guoqing
name: Xiao, Shilin
name: Hu, Weisheng
name: Yi, Lilin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The modeling and prediction of the ultrafast nonlinear dynamics in the optical fiber are essential for the studies of laser design, experimental optimization, and other fundamental applications. The traditional propagation modeling method based on the nonlinear Schrödinger equation (NLSE) has long been regarded as extremely time-consuming, especially for designing and optimizing experiments. The recurrent neural network (RNN) has been implemented as an accurate intensity prediction tool with reduced complexity and good generalization capability. However, the complexity of long grid input points and the flexibility of neural network structure should be further optimized for broader applications. Here, we propose a convolutional feature separation modeling method to predict full-field ultrafast nonlinear dynamics with low complexity and high flexibility, where the linear effects are firstly modeled by NLSE-derived methods, then a convolutional deep learning method is implemented for nonlinearity modeling. With this method, the temporal relevance of nonlinear effects is substantially shortened, and the parameters and scale of neural networks can be greatly reduced. The running time achieves a 94% reduction versus NLSE and an 87% reduction versus RNN without accuracy deterioration. In addition, the input pulse conditions, including grid point numbers, durations, peak powers, and propagation distance, can be flexibly changed during the predicting process. The results represent a remarkable improvement in the ultrafast nonlinear dynamics prediction and this work also provides novel perspectives of the feature separation modeling method for quickly and flexibly studying the nonlinear characteristics in other fields.
description: 15 pages,9 figures
Exploring the beliefs and underlying functional deficits associated with chronic fatigue syndrome and the identification of predictors of recovery and successful illness management
Creators: name: Thomas, Marie
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Public health not elsewhere classified
Other health sciences not elsewhere classified

description: Chronic Fatigue Syndrome is described as an illness that produces a marked reduction in activity and an increase in mental fatigue. The condition, as the name suggests, is chronic in nature and is of sufficient severity to cause substantial functional impairment to the sufferer and exerts a significant financial strain on healthcare and welfare resources. It was the culmination of these factors which prompted the call for structured and wide-ranging programmes of research in the United Kingdom. The research project described in the following chapters was conducted in response to this call. The preliminary narrative begins with a brief introduction to the project's scope, a description of the clinical setting for the project and the participants taking part and will end with an account of my involvement in the research.
Interference and parity blockade in transport through a Majorana box
Creators: name: Nitsch, Maximilian
name: Souto, Rubén Seoane
name: Leijnse, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A Majorana box - two topological superconducting nanowires coupled via a trivial superconductor - is a building block in devices aiming to demonstrate nonabelian physics, as well as for topological quantum computer architectures. We theoretically investigate charge transport through a Majorana box and show that current can be blocked when two Majoranas couple to the same lead, fixing their parity. In direct analogy to Pauli spin blockade in spin qubits, this parity blockade can be used for fast and high-fidelity qubit initialization and readout, as well as for current-based measurements of decoherence times. Furthermore, we demonstrate that transport can distinguish between a clean Majorana box and a disordered box with additional unwanted Majorana or Andreev bound states.
description: 4 pages, 3 figures + 6 pages supplementary
Signatures of R-process Enrichment in Supernovae from Collapsars
Creators: name: Barnes, Jennifer
name: Metzger, Brian D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Despite recent progress, the astrophysical channels responsible for rapid neutron capture (r-process) nucleosynthesis remain an unsettled question. Observations of kilonovae following gravitational wave-detected neutron star mergers established mergers as one site of the r-process, but additional sources may be needed to fully explain r-process enrichment in the Universe. One intriguing possibility is that rapidly rotating massive stars undergoing core collapse launch r-process-rich outflows off the accretion disks formed from their infalling matter. In this scenario, r-process winds comprise one component of the supernova (SN) ejecta produced by "collapsar" explosions. We present the first systematic study of the effects of r-process enrichment on the emission from collapsar-generated SNe. We semi-analytically model r-process SN emission from explosion out to late times, and determine its distinguishing features. The ease with which r-process SNe can be identified depends on how effectively wind material mixes into the initially r-process-free outer layers of the ejecta. In many cases, enrichment produces a near infrared (NIR) excess that can be detected within ~75 days of explosion. We also discuss optimal targets and observing strategies for testing the r-process collapsar theory, and find that frequent monitoring of optical and NIR emission from high-velocity SNe in the first few months after explosion offers a reasonable chance of success while respecting finite observing resources. Such early identification of r-process collapsar candidates also lays the foundation for nebular-phase spectroscopic follow-up in the near- and mid-infrared, for example with the James Webb Space Telescope.
description: Submitted to ApJ. Comments welcome
Graphene on Silicon Hybrid Field-Effect Transistors
Creators: name: Fomin, Mykola
name: Pasadas, Francisco
name: Marin, Enrique
name: Rull, Alberto Medina
name: Ruiz, Francisco
name: Godoy, Andres
name: Zadorozhnyi, Ihor
name: Beltramo, Guillermo
name: Brings, Fabian
name: Vitusevich, Svetlana
name: Offenhaeusser, Andreas
name: Kireev, Dmitry
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The combination of graphene with silicon in hybrid devices has attracted attention extensively over the last decade. Most of such devices were proposed for photonics and radiofrequency applications. In this work, we present a unique technology of graphene-on-silicon heterostructures and their properties as solution-gated transistors. The graphene-on-Silicon field-effect transistors (GoSFETs) were fabricated exploiting various conformations of drain-source regions doping and channel material dimensions. The fabricated devices were electrically characterized demonstrating hybrid behavior with features specific to both graphene and silicon. Although GoSFET's transconductance and carrier's mobility were found to be lower than in conventional silicon and graphene field-effect transistors (SiFETs and GFETs), it was demonstrated that the combination of both materials within the hybrid channel contribute uniquely to the charge carrier transport. A comprehensive physics-based compact modeling was specifically developed, showing excellent agreement with the experimental data. The model is employed to rationalize the observed hybrid behavior as the theoretical results from the electrostatics and the carrier transport under a drift-diffusion approach show that graphene acts as a shield for the silicon channel, giving rise to a non-uniform potential distribution along it, especially at the subthreshold region. This graphene screening effect is shown to strongly affect the device subthreshold swing when compared against a conventional SiFET due to a non-negligible diffusion current in this operation regime.
Joint state and parameter estimation based on constrained zonotopes
Creators: name: Rego, Brenner S.
name: Locatelli, Diego
name: Raimondo, Davide M.
name: Raffo, Guilherme V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This note presents a new method for set-based joint state and parameter estimation of discrete-time systems using constrained zonotopes. This is done by extending previous set-based state estimation methods to include parameter identification in a unified framework. Unlike in interval-based methods, the existing dependencies between states and model parameters are maintained from one time step to the next, thus providing a more accurate estimation scheme. In addition, the enclosure of states and parameters is refined using measurements through generalized intersections, which are properly captured by constrained zonotopes. The advantages of the new approach are highlighted in two numerical examples.
Modular Control Plane Verification via Temporal Invariants
Creators: name: Thijm, Timothy Alberdingk
name: Beckett, Ryan
name: Gupta, Aarti
name: Walker, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: C.2.2; D.2.4; F.3.1

description: Monolithic control plane verification cannot scale to hyperscale network architectures with tens of thousands of nodes, heterogeneous network policies and thousands of network changes a day. Instead, modular verification offers improved scalability, reasoning over diverse behaviors, and robustness following policy updates. We introduce Timepiece, a new modular control plane verification system. While one class of verifiers, starting with Minesweeper, were based on analysis of stable paths, we show that such models, when deployed naively for modular verification, are unsound. To rectify the situation, we adopt a routing model based around a logical notion of time and develop a sound, expressive, and scalable verification engine. Our system requires that a user specifies interfaces between module components. We develop methods for defining these interfaces using predicates inspired by temporal logic, and show how to use those interfaces to verify a range of network-wide properties such as reachability or access control. Verifying a prefix-filtering policy using a non-modular verification engine times out on an 80-node fattree network after 2 hours. However, Timepiece verifies a 2,000-node fattree in 2.37 minutes on a 96-core virtual machine. Modular verification of individual routers is embarrassingly parallel and completes in seconds, which allows verification to scale beyond non-modular engines, while still allowing the full power of SMT-based symbolic reasoning.
description: 27 pages (22 pages body, ~3 pages references, ~1 page proofs), 14 figures, accepted to PLDI 2023
title: Toby A.H. Wilkinson: Early Dynastic Egypt, London/New York 1999
Creators: name: Förster, Frank
Publisher: name: University Library Heidelberg
Year: 2014

description: Rezension zu: Toby A.H. Wilkinson: Early Dynastic Egypt. Routledge. London/New York 1999. XXII + 413 Seiten, ca. 60 Abbildungen (Karten, s/w-Photos, Umzeichnungen). ISBN 0-415-18633-1. £ 55,00.
A realizable second-order advection method with variable flux limiters for moment transport equations
Creators: name: Choi, Byeongyeob
name: Baek, Jehyun
name: You, Donghyun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A second-order total variation diminishing (TVD) method with variable flux limiters is proposed to overcome the non-realizability issue, which has been one of major obstacles in applying the conventional second-order TVD schemes to the moment transport equations. In the present method, a realizable moment set at a cell face is reconstructed by allowing the flexible selection of the flux limiter values within the second-order TVD region. Necessary conditions for the variable flux limiter scheme to simultaneously satisfy the realizability and the second-order TVD property for the third-order moment set are proposed. The strategy for satisfying the second-order TVD property is conditionally extended to the fourth- and fifth-order moments. The proposed method is verified and compared with other high-order realizable schemes in one- and two-dimensional configurations, and is found to preserve the realizability of moments while satisfying the high-order TVD property for the third-order moment set and conditionally for the fourth- and fifth-order moments.
title: CAA 2002 - "The Digital Heritage of Archaeology". Jahrestagung der Computer Applications and Quantitative Methods in Archaeology in Heraklion, Kreta, Griechenland, vom 2. bis 6. April 2002
Creators: name: Schmidt, Sascha
name: Schmitt, Johannes
Publisher: name: University Library Heidelberg
Year: 2014

description: [nicht vorhanden]
Developing a model for analysing operational powers that lead to low participation of women in elite kitchens
Creators: name: White, Alan
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Food and hospitality services
Hospitality management

description: Literature on women's participation in the tourism and hospitality workplace highlights various imbalances although elite kitchens have received little attention. This thesis enhances knowledge on women's participation in elite kitchens in the United Kingdom through quantitative and qualitative analysis and an evaluation of the discursive constructs of expert industry observers. The thesis explores power mechanisms and the extent to which they support inclusive attitudes, raise expectations and support real employment opportunities for women. It also explores the multidimensional operation of forces that oppose women's participation and promote polarisation, alienation and detachment from the elite culinary arts workplace. Women occupied just 5% of head chef's positions in Michelin star restaurants. Successful women tended to be iconised and their achievements much celebrated. Yet, women's low participation at senior levels is longstanding, despite a raft of policies aimed at promoting gender equality. This thesis provides a rich picture of elite kitchens from a post-modern, contextual feminist perspective. Semi-structured interviews with expert industry observers provided in-depth insight into the complex and subtle ways in which the activity and inactivity of leaders and groups and the sheer weight of organisations - political, institutional and educational - served to perpetuate gender imbalance. Hard, quantitative data was used to show the true extent of gender imbalance. This thesis concludes that real employment opportunities did not exist for women because the mechanisms intended to support them were a mirage resulting in raised but unfulfilled aspirations. Reason was not being mobilised effectively in public debate to counter the power processes that perpetuated exclusion legitimising male domination, leaving women in a position of oppressed quiescence. This thesis makes a contribution to understanding women's choices and constraints and is a major contribution to the development of hospitality and catering studies.
A Novel Hybrid Backscatter and Conventional Algorithm for Multi-Hop IoT Networks
Creators: name: Raeisi, Mahmoud
name: Mahdavi, Mehdi
name: Hosseini, Ali Mohammad Doost
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates a multi-hop cognitive radio network in terms of end-to-end bit delivery. The network exploits backscatter communication (BackCom) and harvest-then-transmit (HTT) mode in a hybrid manner. Such a network can be used in internet of things (IoT) applications in which IoT users coexist with a primary network (PN) and use the primary spectrum to transmit data in both BackCom and HTT modes. Besides, such users can harvest energy from the primary signals. A novel hybrid backscatter and conventional transmission (HBCT) algorithm is proposed in order to maximize end-to-end bit delivery by jointly optimizing time and power allocations. For this goal, we formulate a non-convex optimization problem. Next, we transform the problem into a convex one and develop a new analytical formulation by which we calculate the optimal power and time allocation in closed-form equations. The numerical results demonstrate the superiority of HBCT compared with current schemes.
Hubble Space Telescope observations of the afterglow, supernova and host galaxy associated with the extremely bright GRB 130427A
Creators: name: Levan, A. J.
name: Tanvir, N. R.
name: Fruchter, A. S.
name: Hjorth, J.
name: Pian, E.
name: Mazzali, P.
name: Hounsell, R. A.
name: Perley, D. A.
name: Cano, Z.
name: Graham, J.
name: Cenko, S. B.
name: Fynbo, J. P. U.
name: Kouveliotou, C.
name: Pe'er, A.
name: Misra, K.
name: Wiersema, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present Hubble Space Telescope (HST) observations of the exceptionally bright and luminous Swift gamma-ray burst, GRB 130427A. At z=0.34 this burst affords an excellent opportunity to study the supernova and host galaxy associated with an intrinsically extremely luminous burst ($E_{iso} >10^{54}$ erg): more luminous than any previous GRB with a spectroscopically associated supernova. We use the combination of the image quality, UV capability and and invariant PSF of HST to provide the best possible separation of the afterglow, host and supernova contributions to the observed light ~17 rest-frame days after the burst utilising a host subtraction spectrum obtained 1 year later. Advanced Camera for Surveys (ACS) grism observations show that the associated supernova, SN~2013cq, has an overall spectral shape and luminosity similar to SN 1998bw (with a photospheric velocity, v$_{ph}$ ~15,000 km/s). The positions of the bluer features are better matched by the higher velocity SN~2010bh (v$_{ph}$ ~ 30,000 km/s), but SN 2010bh is significantly fainter, and fails to reproduce the overall spectral shape, perhaps indicative of velocity structure in the ejecta. We find that the burst originated ~4 kpc from the nucleus of a moderately star forming (1 Msol/yr), possibly interacting disc galaxy. The absolute magnitude, physical size and morphology of this galaxy, as well as the location of the GRB within it are also strikingly similar to those of GRB980425/SN 1998bw. The similarity of supernovae and environment from both the most luminous and least luminous GRBs suggests broadly similar progenitor stars can create GRBs across six orders of magnitude in isotropic energy.
description: 8 pages, replaced with accepted version
Effect of spin-orbit coupling in one-dimensional quasicrystals with power-law hopping
Creators: name: Sahu, Deepak Kumar
name: Datta, Sanjoy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In the one-dimensional quasiperiodic Aubry-André-Harper Hamiltonian with nearest-neighbor hopping, all single-particle eigenstates undergo a phase transition from ergodic to localized states at a critical disorder strength $W_c/t = 2.0$. There is no mobility edge in this system. However, in the presence of power-law hopping having the form $1/r^a$, beyond a critical disorder strength mobility edge appears for $a > 1$, while, for $0< a\leq 1$, a multifractal edge separates the extended and the multifractal states. In both these limits, depending on the strength of the disorder, lowest $β^s L$ states are delocalized. We have found that, in the presence of the spin-orbit coupling, the critical disorder strength is always larger irrespective of the value of the parameter $a$. Furthermore, we demonstrate that for $a\leq 1$, in the presence of spin-orbit coupling, there exists multiple multifractal edges, and the energy spectrum splits up into alternative bands of delocalized and multifractal states. Moreover, the location of the multifractal edges are generally given by the fraction $(β^s \pm β^m)$. The qualitative behavior of the energy spectrum remains unaffected for $a > 1$. However, in contrast to the previously reported results, we find that in this limit, similar to the other case, multiple mobility edges can exist with or without the spin-orbit coupling.
description: 10 pages, 10 figures
An Efficient Operator-Splitting Method for the Eigenvalue Problem of the Monge-Ampère Equation
Creators: name: Liu, Hao
name: Leung, Shingyu
name: Qian, Jianliang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35J60, 65N25, 65N30

description: We develop an efficient operator-splitting method for the eigenvalue problem of the Monge-Ampère operator in the Aleksandrov sense. The backbone of our method relies on a convergent Rayleigh inverse iterative formulation proposed by Abedin and Kitagawa (Inverse iteration for the {M}onge-{A}mp{è}re eigenvalue problem, {\it Proceedings of the American Mathematical Society}, 148 (2020), no. 11, 4975-4886). Modifying the theoretical formulation, we develop an efficient algorithm for computing the eigenvalue and eigenfunction of the Monge-Ampère operator by solving a constrained Monge-Ampère equation during each iteration. Our method consists of four essential steps: (i) Formulate the Monge-Ampère eigenvalue problem as an optimization problem with a constraint; (ii) Adopt an indicator function to treat the constraint; (iii) Introduce an auxiliary variable to decouple the original constrained optimization problem into simpler optimization subproblems and associate the resulting new optimization problem with an initial value problem; and (iv) Discretize the resulting initial-value problem by an operator-splitting method in time and a mixed finite element method in space. The performance of our method is demonstrated by several experiments. Compared to existing methods, the new method is more efficient in terms of computational cost and has a comparable rate of convergence in terms of accuracy.
title: J . Lefftz, „Die Brunnen im Elsaß, Woerth 1954
Creators: name: Schlippe, Joseph
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 1, Nr. 3 (1958): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Bioactivity of casein hydrolysates fractions with reference to their in-vitro radical scavenging, hypocholesterolemic and hypotensive properties
Creators: name: Irshad, Imran
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Cardiology (incl. cardiovascular diseases)

description: The bioactivities of casein hydrolysates for hypocholesterolemic (HC) and hypotensive (HT) properties, using Angiotensin Converting Enzyme (ACE) inhibition as an indicator, as well as antioxidant properties have been investigated. Sodium caseinate was used as the source for the production of bioactive peptides by enzymatic hydrolysis using trypsin at pH 7.5 and a combination of pepsin at pH 2.0 followed by trypsin (P+T) at different time intervals and up to 4 hours. Crude casein hydrolysate (CH) was further fractionated by membrane separation technique, ultrafiltration, using two membranes with two different molecular weight cut-off at 10 kDa and 1 kDa. The crude hydrolysate was compared with the two collected permeates; one containing a mixture of peptides with molecular weight below 10 kDa and the second with peptides below 1 kDa. In general, the results indicated that the higher level of hydrolysis exhibited higher bioactivities for all the tested samples. Hypocholesterolemic effect of the hydrolysates and the permeates, CH, 10 kDa and 1 kDa, using trypsin only for 4 h shown to reduce cholesterol level by 39.5, 50.1 and 69.6%, respectively. On the other hand, the hydrolysates and the permeates from the combined action of pepsin and trypsin showed higher cholesterol reduction of 44.9, 52.2 and 87 .0%, respectively. ACE inhibition activities of the hydrolystate and its permeates, CH, 10 kDa and 1 kDa from trypsin hydrolysis after 4 hours were 18.9, 29.7 and 5l.4%, respectively. ACE inhibition activities were greatly increased when the combined P+T were used and exhibited 31.1, 52.7 and 82.4% inhibitions, respectively. The antioxidant activity of the three samples (crude casein hydrolysate, 10 kDa & 1 kDa permeates) after 4h hydrolysis using trypsin showed radical scavenging activities of 13.7, 17.3 and 24.4% respectively. However, when using the combined enzymes P+T, the activities were reduced to 13.1, 15.5 and 19.6% respectively.
Hierarchical Clustering of Hyperspectral Images using Rank-Two Nonnegative Matrix Factorization
Creators: name: Gillis, Nicolas
name: Kuang, Da
name: Park, Haesun
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Retrieval (cs.IR)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we design a hierarchical clustering algorithm for high-resolution hyperspectral images. At the core of the algorithm, a new rank-two nonnegative matrix factorizations (NMF) algorithm is used to split the clusters, which is motivated by convex geometry concepts. The method starts with a single cluster containing all pixels, and, at each step, (i) selects a cluster in such a way that the error at the next step is minimized, and (ii) splits the selected cluster into two disjoint clusters using rank-two NMF in such a way that the clusters are well balanced and stable. The proposed method can also be used as an endmember extraction algorithm in the presence of pure pixels. The effectiveness of this approach is illustrated on several synthetic and real-world hyperspectral images, and shown to outperform standard clustering techniques such as k-means, spherical k-means and standard NMF.
description: 29 pages, 19 figures. New experiment on Terrain data set. Accepted in IEEE Trans. Geosci. Remote Sens
The derivation of the conservation law for defocusing nonlinear Schroedinger equations with non-vanishing initial data at infinity
Creators: name: Miyazaki, Hayato
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35A01, 35Q41, 35L65

description: For nonlinear Schrödinger equations in less than or equal to four dimension, with non-vanishing initial data at infinity, a new approach to derive the conservation law is obtained. Since this approach does not contain approximating procedure, the argument is simplified and some of technical assumption of the nonlinearity to derive the conservation law and time global solutions, is removed.
description: 20page
title: Salem, Münster. Schloß. Schule., Lindau und Konstanz, 1958.
Creators: name: Keller, Rudi
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 1, Nr. 3 (1958): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Baedekers Schwarzwald. Odenwald. Neckartal, Freiburg 1956
Creators: name: Keller, Rudi
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 1, Nr. 3 (1958): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Variations of the telescope conjecture and Bousfield lattices for localized categories of spectra
Creators: name: Wolcott, F. Luke
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 55P42 (Primary) 55P60, 55U35, 18E30 (Secondary)

description: We investigate several versions of the telescope conjecture on localized categories of spectra, and implications between them. Generalizing the "finite localization" construction, we show that on such categories, localizing away from a set of strongly dualizable objects is smashing. We classify all smashing localizations on the harmonic category, HFp-local category and I-local category, where I is the Brown-Comenetz dual of the sphere spectrum; all are localizations away from strongly dualizable objects, although these categories have no nonzero compact objects. The Bousfield lattices of the harmonic, E(n)-local, K(n)-local, HFp-local and I-local categories are described, along with some lattice maps between them. One consequence is that in none of these categories is there a nonzero object that squares to zero. Another is that the HFp-local category has localizing subcategories that are not Bousfield classes.
description: 23 pages (typos fixed, Prop 6.4 added)
An investigation into the performance of bioluminescence-based measurements
Creators: name: Driscoll, Mark
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Microbiology not elsewhere classified

description: This work describes an amplification system, which can greatly increase the amount of ATP available for detection by bioluminescent methods, increasing the sensitivity. The system makes use of an enzyme, adenylate kinase (AK), present in virtually all living cells. The sensitivity of the assay was increased by l0 to 100-fold. A suitable extractant needed to be developed, which had the role of allowing intracellular AK to be detected and assayed, but which was not harmful to the enzyme or ATP, and did not interfere with the assay in any way. The assay required ADP as a substrate, and contaminant ATP from commercial ADP preparations needed to be removed beforehand. Initially, HPLC was used to do this on an analytical scale but was developed into a large-scale preparative procedure employing ion-exchange chromatography. The ATP contamination was reduced to a concentration of less than 1 x 10-6 %. Similarly, commercial luciferase enzymes for the detection of ATP contain contaminating AK, and several approaches were developed to remove this, including Iso-electric Focusing and low-ionic strength precipitation. Over 98% of contaminant AK was successfully removed. Industrial applications of the system were successfully proven, such as incorporation of the assay into a continuous flow luminometer, equipped with a timed 'delay loop' to allow ATP levels to be amplified prior to detection with luciferase in a 'flowcell' detection system. The assay has also been shown to be of significant use in the brewing industry, for the assessment of yeast quality. Current methods involve the assay of protease activity, which is time consuming, expensive, and of poor sensitivity. The AK assay was found to provide an extremely sensitive method for the determination of yeast leakage and autolysis, allowing selection of yeast for re-pitching as part of yeast management in the brewing sector.
title: Die Instandsetzung der kath. Stadtpfarrkirche in Sigmaringen
Creators: name: Genzmer, Walther
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 2, Nr. 4 (1959): Nachrichtenblatt der Denkmalpflege in Baden-Württemberg – Organ der Staatlichen Ämter für Denkmalpflege, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Integrability in N=2 superconformal gauge theories
Creators: name: Pomoni, Elli
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Any N=2 superconformal gauge theory (including N=4 SYM) contains a set of local operators made only out of fields in the N=2 vector multiplet that is closed under renormalization to all loops, namely the SU(2,1|2) sector. For planar N=4 SYM the spectrum of local operators can be obtained by mapping the problem to an integrable model (a spin chain in perturbation theory), in principle for any value of the coupling constant. We present a diagrammatic argument that for any planar N=2 superconformal gauge theory the SU(2,1|2) Hamiltonian acting on infinite spin chains is identical to all loops to that of N=4 SYM, up to a redefinition of the coupling constant. Thus, this sector is integrable and anomalous dimensions can be, in principle, read off from the N=4 ones up to this redefinition.
description: 42 pages, 33 figures
Hadamard Tail from Initial Data on the Light Cone
Creators: name: Aruquipa, David Q.
name: Casals, Marc
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Field perturbations of a curved background spacetime generally propagate not only at the speed of light but also at all smaller velocities. This so-called $Hadamard\,tail$ contribution to wave propagation is relevant in various settings, from classical self-force calculations to communication between quantum particle detectors. One method for calculating this tail contribution is by integrating the homogeneous wave equation using Characteristic Initial Data on the light cone. However, to the best of our knowledge, this method has never been implemented before except in flat or conformally-flat spacetimes, where null geodesics emanating from a point do not cross. In this work, we implement this method on the black hole toy model Plebański-Hacyan spacetime, $\mathbb{M}_2\times\mathbb{S}^2$. We obtain new results in this spacetime by calculating the Hadamard tail of a scalar field everywhere where it is defined (namely, in the maximal normal neighbourhood of an arbitrary point) and investigate how it varies for various values of the coupling constant. This serves as a proof-of-concept for the Characteristic Initial Data method on spacetimes where null geodesics emanating from a point $do$ cross.
description: 15 pages, 5 figures
title: Untersuchungen am römischen Kastellbad von Osterburken, Odenwaldkreis
Creators: name: Behrends, Rolf-Heiner
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 3, Nr. 2 (1974), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
The irreversibility cost of purifying Szilard's engine: Is it possible to perform erasure using the quantum homogenizer?
Creators: name: Violaris, Maria
name: Marletto, Chiara
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Erasure is fundamental for information processing. It is also key in connecting information theory and thermodynamics, as it is a logically irreversible task. We provide a new angle on this connection, noting that there may be an additional cost to erasure, that is not captured by standard results such as Landauer's principle. To make this point we use a model of irreversibility based on Constructor Theory - a recently proposed generalization of the quantum theory of computation. The model uses a machine called the "quantum homogenizer", which has the ability to approximately realise the transformation of a qubit from any state to any other state and remain approximately unchanged, through overall entirely unitary interactions. We argue that when performing erasure via quantum homogenization there is an additional cost to performing the erasure step of the Szilard's engine, because it is more difficult to reliably produce pure states in a cycle than to produce mixed states. We also discuss the implications of this result for the cost of erasure in more general terms.
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 3, Nr. 3 (1974), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Quellennachweis für die Abbildungen ; Die Dienststellen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 3, Nr. 4 (1974), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
LiDAR-aid Inertial Poser: Large-scale Human Motion Capture by Sparse Inertial and LiDAR Sensors
Creators: name: Ren, Yiming
name: Zhao, Chengfeng
name: He, Yannan
name: Cong, Peishan
name: Liang, Han
name: Yu, Jingyi
name: Xu, Lan
name: Ma, Yuexin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: We propose a multi-sensor fusion method for capturing challenging 3D human motions with accurate consecutive local poses and global trajectories in large-scale scenarios, only using single LiDAR and 4 IMUs, which are set up conveniently and worn lightly. Specifically, to fully utilize the global geometry information captured by LiDAR and local dynamic motions captured by IMUs, we design a two-stage pose estimator in a coarse-to-fine manner, where point clouds provide the coarse body shape and IMU measurements optimize the local actions. Furthermore, considering the translation deviation caused by the view-dependent partial point cloud, we propose a pose-guided translation corrector. It predicts the offset between captured points and the real root locations, which makes the consecutive movements and trajectories more precise and natural. Moreover, we collect a LiDAR-IMU multi-modal mocap dataset, LIPD, with diverse human actions in long-range scenarios. Extensive quantitative and qualitative experiments on LIPD and other open datasets all demonstrate the capability of our approach for compelling motion capture in large-scale scenarios, which outperforms other methods by an obvious margin. We will release our code and captured dataset to stimulate future research.
title: Die Reichsabtei Schuttern. Ergebnisse der Grabungen in den Jahren 1972 bis 1975
Creators: name: List, Karl
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 4, Nr. 3 (1975), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
GCoNet+: A Stronger Group Collaborative Co-Salient Object Detector
Creators: name: Zheng, Peng
name: Fu, Huazhu
name: Fan, Deng-Ping
name: Fan, Qi
name: Qin, Jie
name: Tai, Yu-Wing
name: Tang, Chi-Keung
name: Van Gool, Luc
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we present a novel end-to-end group collaborative learning network, termed GCoNet+, which can effectively and efficiently (250 fps) identify co-salient objects in natural scenes. The proposed GCoNet+ achieves the new state-of-the-art performance for co-salient object detection (CoSOD) through mining consensus representations based on the following two essential criteria: 1) intra-group compactness to better formulate the consistency among co-salient objects by capturing their inherent shared attributes using our novel group affinity module (GAM); 2) inter-group separability to effectively suppress the influence of noisy objects on the output by introducing our new group collaborating module (GCM) conditioning on the inconsistent consensus. To further improve the accuracy, we design a series of simple yet effective components as follows: i) a recurrent auxiliary classification module (RACM) promoting model learning at the semantic level; ii) a confidence enhancement module (CEM) assisting the model in improving the quality of the final predictions; and iii) a group-based symmetric triplet (GST) loss guiding the model to learn more discriminative features. Extensive experiments on three challenging benchmarks, i.e., CoCA, CoSOD3k, and CoSal2015, demonstrate that our GCoNet+ outperforms the existing 12 cutting-edge models. Code has been released at https://github.com/ZhengPeng7/GCoNet_plus.
description: T-PAMI 2023
Symmetry-protected many-body Aharonov-Bohm effect
Creators: name: Santos, Luiz H.
name: Wang, Juven
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is known as a purely quantum effect that a magnetic flux affects the real physics of a particle, such as the energy spectrum, even if the flux does not interfere with the particle's path - the Aharonov-Bohm effect. Here we examine an Aharonov-Bohm effect on a many-body wavefunction. Specifically, we study this many-body effect on the gapless edge states of a bulk gapped phase protected by a global symmetry (such as $\mathbb{Z}_{N}$) - the symmetry-protected topological (SPT) states. The many-body analogue of spectral shifts, the twisted wavefunction and the twisted boundary realization are identified in this SPT state. An explicit lattice construction of SPT edge states is derived, and a challenge of gauging its non-onsite symmetry is overcome. Agreement is found in the twisted spectrum between a numerical lattice calculation and a conformal field theory prediction.
description: 5 pages main text + 8 pages appendix, 3 figures. v2: nearly PRB version
An Ideal Characterization of the Clifford Operators
Creators: name: Farinholt, J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Clifford operators are an important and well-studied subset of quantum operations, in both the qubit and higher-dimensional qudit cases. While there are many ways to characterize this set, this paper aims to provide an ideal characterization, in the sense that it has the same characterization in every finite dimension, is characterized by a minimal set of gates, is constructive, and does not make any assumptions about non-Clifford operations or resources (such as the use of ancillas or the ability to make measurements). While most characterizations satisfy some of these properties, this appears to be the first characterization satisfying all of the above. As an application, we use these results to briefly analyze characterizations of Clifford embeddings, that is, the action of logical Clifford operations acting on qunits embedded in higher-dimensional qudits, inside the qudit Clifford framework.
description: 18 pages, 1 figure, 2 appendices; Updates: v3: New title that better embodies the focus of the research; new abstract and introduction that more clearly motivate the research; new section added at the end on Clifford embeddings. All results unchanged. v4: Minor edits and additional references. This is close to the published version
Reheating after relaxation of large cosmological constant
Creators: name: Martens, Paul
name: Mukohyama, Shinji
name: Namba, Ryo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a cosmological model of an early-time scenario that incorporates a relaxation process of the would-be large vacuum energy, followed by a reheating era connecting to the standard hot big bang universe. Avoiding fine-tuning the cosmological constant is achieved by the dynamics of a scalar field whose kinetic term is modulated by an inverse power of spacetime curvature. While it is at work against radiative corrections to the dark energy, this mechanism alone would wipe out not only the vacuum energy but also all other matter contents. Our present work aims to complete the scenario by exploiting a null-energy-condition violating sector whose energy is eventually transferred to a reheating sector. We provide an explicit example of this process and thus a concrete scenario of the cosmic onset that realizes the thermal history of the Universe with a negligible cosmological constant.
description: 36 pages, 10 figures
Individual and Time Effects in Nonlinear Panel Models with Large N, T
Creators: name: Fernandez-Val, Ivan
name: Weidner, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: Econometrics (econ.EM)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business
subject: 62

description: We derive fixed effects estimators of parameters and average partial effects in (possibly dynamic) nonlinear panel data models with individual and time effects. They cover logit, probit, ordered probit, Poisson and Tobit models that are important for many empirical applications in micro and macroeconomics. Our estimators use analytical and jackknife bias corrections to deal with the incidental parameter problem, and are asymptotically unbiased under asymptotic sequences where $N/T$ converges to a constant. We develop inference methods and show that they perform well in numerical examples.
description: 84 pages, 10 tables, includes supplementary appendix; Relative to the published version we corrected some expressions in Theorem 4.2 here