cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Identifying Reaction Pathways in Phase Space via Asymptotic Trajectories
Creators: name: Nagahata, Yutaka
name: Borondo, Florentino
name: Benito, Rosa M.
name: Hernandez, Rigoberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In this paper, we revisit the concepts of the reactivity map and the reactivity bands as an alternative to the use of perturbation theory for the determination of the phase space geometry of chemical reactions. We introduce a reformulated metric, called the asymptotic trajectory indicator, and an efficient algorithm to obtain reactivity boundaries. We demonstrate that this method has sufficient accuracy to reproduce phase space structures such as turnstiles for a 1D model of the isomerization of ketene in an external field. The asymptotic trajectory indicator can be applied to higher dimensional systems coupled to Langevin baths as we demonstrate for a 3D model of the isomerization of ketene.
description: 43 pages, 18 figures
Comparative study of regression vs pairwise models for surrogate-based heuristic optimisation
Creators: name: Naharro, Pablo S.
name: Toharia, Pablo
name: LaTorre, Antonio
name: Peña, José-María
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Heuristic optimisation algorithms explore the search space by sampling solutions, evaluating their fitness, and biasing the search in the direction of promising solutions. However, in many cases, this fitness function involves executing expensive computational calculations, drastically reducing the reasonable number of evaluations. In this context, surrogate models have emerged as an excellent alternative to alleviate these computational problems. This paper addresses the formulation of surrogate problems as both regression models that approximate fitness (surface surrogate models) and a novel way to connect classification models (pairwise surrogate models). The pairwise approach can be directly exploited by some algorithms, such as Differential Evolution, in which the fitness value is not actually needed to drive the search, and it is sufficient to know whether a solution is better than another one or not. Based on these modelling approaches, we have conducted a multidimensional analysis of surrogate models under different configurations: different machine learning algorithms (regularised regression, neural networks, decision trees, boosting methods, and random forests), different surrogate strategies (encouraging diversity or relaxing prediction thresholds), and compare them for both surface and pairwise surrogate models. The experimental part of the article includes the benchmark problems already proposed for the SOCO2011 competition in continuous optimisation and a simulation problem included in the recent GECCO2021 Industrial Challenge. This paper shows that the performance of the overall search, when using online machine learning-based surrogate models, depends not only on the accuracy of the predictive model but also on both the kind of bias towards positive or negative cases and how the optimisation uses those predictions to decide whether to execute the actual fitness function.
Harmonizing General Relativity with Quantum Mechanics
Creators: name: Alfonso-Faus, Antonio
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Gravitation is the common underlying texture between General Relativity and Quantum Mechanics. We take gravitation as the link that can make possible the marriage between these two sciences. We use here the duality of Nature for gravitation: A continuous warped space, wave-like, and a discrete quantum gas, particle-like, both coexistent and producing an equilibrium state in the Universe. The result is a static, non expanding, spherical, unlimited and finite Universe, with no cosmological constant and no dark energy. The Principle of Mach is reproduced here by the convergence of the two cosmological equations of Einstein. From this a Mass Boom concept is born given by M = t, M the mass of the Universe and t its age. Also a decreasing speed of light is the consequence of the Mass Boom, c = 1/t, which explains the Supernovae Type Ia observations without the need of expansion (nor, of course, accelerated expansion). Our Mass Boom model completely wipes out the problems and paradoxes built in the Big Bang model, like the horizon, monopole, entropy, flatness, fine tuning, etc. It also eliminates the need for inflation. Finally the relation proposed by Weinberg in 1972 is here explained in terms of a gravitational cross section for all gravitational masses.
description: Presented at the Madrid October 17 2006 Symposium on "Frontiers of Fundamental Physics 8" and to be published by AIP Proceedings book. New version with changed contents
Echoes in a Single Quantum Kerr-nonlinear Oscillator
Creators: name: Tutunnikov, I.
name: Rajitha, K. V.
name: Averbukh, I. Sh.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Quantum Kerr-nonlinear oscillator is a paradigmatic model in cavity and circuit quantum electrodynamics, and quantum optomechanics. We theoretically study the echo phenomenon in a single impulsively excited ("kicked") Kerr-nonlinear oscillator. We reveal two types of echoes, "quantum" and "classical" ones, emerging on the long and short time-scales, respectively. The mechanisms of the echoes are discussed, and their sensitivity to dissipation is considered. These echoes may be useful for studying decoherence processes in a number of systems related to quantum information processing.
description: 12 pages, 9 figures
Spherically confined isotropic harmonic oscillator
Creators: name: Sen, K. D.
name: Roy, Amlan K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The generalized pseudospectral Legendre method is used to carry out accurate calculations of eigenvalues of the spherically confined isotropic harmonic oscillator with impenetrable boundaries. The energy of the confined state is found to be equal to that of the unconfined state when the radius of confinement is suitably chosen as the location of the radial nodes in the unconfined state. This incidental degeneracy condition is numerically shown to be valid in general. Further, the full set of pairs of confined states defined by the quantum numbers [(n+1, \ell) ; (n, \ell+2)], n = 1,2,.., and with the radius of confinement {(2 \ell +3)/2}^{1/2} a.u., which represents the single node in the unconfined (1, \ell) state, is found to display a constant energy level separation exactly given by twice the oscillator frequency. The results of similar numerical studies on the confined Davidson oscillator with impenetrable boundary as well as the confined isotropic harmonic oscillator with finite potential barrier are also reported .The significance of the numerical results are discussed.
description: 28 pages, 4 figures
Unconditional robustness of multipartite entanglement of superposition
Creators: name: Qin, Hui-Hui
name: Zhao, Shao-Shuai
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2025
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the robustness of genuine multipartite entanglement and inseparability of multipartite pure states under superposition with product pure states. We introduce the concept of the maximal and the minimal Schmidt ranks for multipartite states. From the minimal Schmidt rank of the first order we present criterion of verifying unconditional robustness of genuine multipartite entanglement of multipartite pure states under superposition with product pure states. By the maximal Schmidt rank of the first order we verify the unconditional robustness of multipartite inseparability under superposition with product pure states. The number of product states superposed to a given entangled state which result in a separable state is investigated in detail. Furthermore, the minimal Schmidt ranks of the second order are also introduced to identify the unconditional robustness of an entangled state for tripartite inseparability.
On the Constancy of the Characteristic Mass of Young Stars
Creators: name: Elmegreen, Bruce G.
name: Klessen, Ralf S.
name: Wilson, Christine D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The characteristic mass M_c in the stellar initial mass function (IMF) is about constant for most star-forming regions. Numerical simulations consistently show a proportionality between M_c and the thermal Jeans mass M_J at the time of cloud fragmentation, but no models have explained how it can be the same in diverse conditions. Here we show that M_J depends weakly on density, temperature, metallicity, and radiation field in three environments: the dense cores where stars form, larger star-forming regions ranging from GMCs to galactic disks, and the interiors of HII regions and super star clusters. In dense cores, the quantity T^{3/2}n^{-1/2} that appears in M_J scales with core density as n^{0.25} or with radiation density as U^{0.1} at the density where dust and gas come into thermal equilibrium. On larger scales, this quantity varies with ambient density as n^{-0.05} and ambient radiation field as U^{-0.033} when the Kennicutt-Schmidt law of star formation determines U(n). In super star clusters with ionization and compression of pre-stellar globules, M_J varies as the 0.13 power of the cluster column density. These weak dependencies on n, U, and column density imply that most environmental variations affect the thermal Jeans mass by at most a factor of ~2. Cosmological increases in M_J, which have been suggested by observations, may be explained if the star formation efficiency is systematically higher at high redshift for a given density and pressure, if dust grains are smaller at lower metallicity, and so hotter for a given radiation field, or if small pre-stellar cores are more severely ionized in extreme starburst conditions.
description: 29 pages, no figures, accepted by ApJ
Team MTS @ AutoMin 2021: An Overview of Existing Summarization Approaches and Comparison to Unsupervised Summarization Techniques
Creators: name: Iakovenko, Olga
name: Andreeva, Anna
name: Lapidus, Anna
name: Mikaelyan, Liana
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Remote communication through video or audio conferences has become more popular than ever because of the worldwide pandemic. These events, therefore, have provoked the development of systems for automatic minuting of spoken language leading to AutoMin 2021 challenge. The following paper illustrates the results of the research that team MTS has carried out while participating in the Automatic Minutes challenge. In particular, in this paper we analyze existing approaches to text and speech summarization, propose an unsupervised summarization technique based on clustering and provide a pipeline that includes an adapted automatic speech recognition block able to run on real-life recordings. The proposed unsupervised technique outperforms pre-trained summarization models on the automatic minuting task with Rouge 1, Rouge 2 and Rouge L values of 0.21, 0.02 and 0.2 on the dev set, with Rouge 1, Rouge 2, Rouge L, Adequacy, Grammatical correctness and Fluency values of 0.180, 0.035, 0.098, 1.857, 2.304, 1.911 on the test set accordingly
description: First Shared Task on Automatic Minuting at Interspeech 2021
A comparison of consumer-administered and staff-administered client statisfaction surveys in mental health
Creators: name: Giffin, Sharon E.
Publisher: name: University of British Columbia
Year: 2009

description: Consumer participation has become an increasingly important concept within the field,of mental health. A study by Polowczyk et al. (1993) suggests that involving consumers as surveyors in satisfaction studies may help improve research validity by minimizing socially desirable or acquiescent response sets. The purpose of this study was twofold: to determine the effects of consumer participation in the process of administering client satisfaction questionnaires to mental health consumers and to examine the experiences of five mental health consumers who were involved as researchers in the project. The consumer-researchers participated in the development of the survey instrument, the collection and analysis of the data, and the dissemination of the research results. A comparison was made between the results of 25 questionnaires administered by consumer-surveyors and 32 questionnaires administered by staff-surveyors. Fifty-seven adult clients with serious and persistent psychiatric disabilities attending a community mental health team completed the questionnaire. Contrary to the previous study, the results of the consumer-administered and staff-administered surveys did not prove to be significantly different. The findings of the comparative study suggest that consumer participation in the administration of client satisfaction evaluations may not be a key factor in determining the level of client satisfaction. However, the data gathered on the experiences of the consumer-researchers suggest several important issues to be addressed during the planning and organizing stages of participatory projects in mental health research.
In-situ crosslinked wet spun collagen triple helices with nanoscale-regulated ciprofloxacin release capability
Creators: name: Arafat, M. Tarik
name: Tronci, Giuseppe
name: Wood, David J.
name: Russell, Stephen J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: The design of antibacterial-releasing coatings or wrapping materials with controlled drug release capability is a promising strategy to minimise risks of infection and medical device failure in vivo. Collagen fibres have been employed as medical device building block, although they still fail to display controlled release capability, competitive wet-state mechanical properties, and retained triple helix organisation. We investigated this challenge by pursuing a multiscale design approach integrating drug encapsulation, in-situ covalent crosslinking and fibre spinning. By selecting ciprofloxacin (Cip) as a typical antibacterial drug, wet spinning was selected as a triple helix-friendly route towards Cip-encapsulated collagen fibres; whilst in situ crosslinking of fibre-forming triple helices with 1,3 phenylenediacetic acid (Ph) was hypothesised to yield Ph-Cip π-π stacking aromatic interactions and enable controlled drug release. Higher tensile modulus and strength were measured in Ph crosslinked fibres compared to state-of-the-art carbodiimide crosslinked controls. Cip-encapsulated Ph-crosslinked fibres revealed decreased elongation at break and significantly-enhanced drug retention in vitro with respect to Cip-free variants and carbodiimide-crosslinked controls, respectively. This multiscale manufacturing strategy provides new insight aiming at wet spun collagen triple helices with nanoscale-regulated tensile properties and drug release capability.
LA CONJETURA DE COLLATZ. Orden y armonía en los números de las secuencias.
Creators: name: Bennassar, Miquel Cerdà
Publisher: name: Zenodo
Year: 2019
Subjects: 3n+1
Collatz
Collatz conjecture
Conjetura de Collatz
3:2
números impares

description: Una teoría muy particular para el problema 3n+1 o la conjetura de Collatz.
How to Formally Model Human in Collaborative Robotics
Creators: name: Askarpour, Mehrnoosh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Human-robot collaboration (HRC) is an emerging trend of robotics that promotes the co-presence and cooperation of humans and robots in common workspaces. Physical vicinity and interaction between humans and robots, combined with the uncertainty of human behaviour, could lead to undesired situations where humans are injured. Thus, safety is a priority for HRC applications. Safety analysis via formal modelling and verification techniques could considerably avoid dangerous consequences, but only if the models of HRC systems are comprehensive and realistic, which requires reasonably realistic models of human behaviour. This paper explores state-of-the-art solutions for modelling human and discusses which ones are suitable for HRC scenarios.
description: In Proceedings FMAS 2020, arXiv:2012.01176
Impurity resonance states in noncentrosymmetric superconductor $CePt_{3}Si$: a probe for Cooper-pairing symmetry
Creators: name: Liu, Bin
name: Eremin, Ilya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by the recent discovery of noncentrosymmetric superconductors, such as $CePt_{3}Si$, $CeRhSi_{3}$ and $CeIrSi_{3}$, we investigate theoretically the impurity resonance states with coexisting $s$- and p-wave pairing symmetries. Due to the nodal structure of the gap function, we find single nonmagnetic impurity-induced resonances appearing in the local density of state (LDOS). In particular, we analyze the evolution of the local density of states for coexisting isotropic s-wave and p-wave superconducting states and compare with that of anisotropic s-wave and p-wave symmetries of the superconducting gap. Our results show that the scanning tunneling microscopy can shed light on the particular structure of the superconducting gap in non-centrosymmetric superconductors.
description: 5 pages, 5 figures, typos corrected, final version in Phys. Rev. B
Towards Compositional Verification for Modular Robotic Systems
Creators: name: Cardoso, Rafael C.
name: Dennis, Louise A.
name: Farrell, Marie
name: Fisher, Michael
name: Luckcuck, Matt
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Logic in Computer Science (cs.LO)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Software engineering of modular robotic systems is a challenging task, however, verifying that the developed components all behave as they should individually and as a whole presents its own unique set of challenges. In particular, distinct components in a modular robotic system often require different verification techniques to ensure that they behave as expected. Ensuring whole system consistency when individual components are verified using a variety of techniques and formalisms is difficult. This paper discusses how to use compositional verification to integrate the various verification techniques that are applied to modular robotic software, using a First-Order Logic (FOL) contract that captures each component's assumptions and guarantees. These contracts can then be used to guide the verification of the individual components, be it by testing or the use of a formal method. We provide an illustrative example of an autonomous robot used in remote inspection. We also discuss a way of defining confidence for the verification associated with each component.
description: In Proceedings FMAS 2020, arXiv:2012.01176
Pyura arenosa
Creators: name: Monniot, Françoise
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Ascidiacea
Stolidobranchia
Pyuridae
Pyura
Pyura arenosa

description: Pyura arenosa (Herdman, 1882) (Figures 25A, 26) Cynthia arenosa Herdman, 1882: 140. Pyura arenosa: Kott: 1985: 289 Figs 138a,b, 139, without synonymy. Material. Coll. N.J. Pilcher et al., Viet Nam, Con Dao Isl., Con Son Isl., 08°41.12’N – 106°36.80’E, 1m, 29/ VII/2008, 0PHG 1713-U (MNHN S2 PYU 484). The specimens are oval and entirely covered with coarse sand. The apertures, one apical and the other at 1/3 of the body length are white with brown stripes in life and show iridescent spinules. The siphonal spinules are long thin spines 120µm in length (Fig. 25A). A dorsal groove connect the siphons. The tunic is thin and translucent after removing the sand. The body wall is very thin with red pigment at the siphons. Muscular ribbons radiate from each siphon but do not extend over the whole body; thin fibres, essentially transverse, occupy the ventral side. There is an oral velum. Sixteen oral tentacles with two orders of ramifications, and smaller ones intercalated, are implanted on the rim of a thick blade. The dorsal tubercle opens on the right in a C. The branchial tissue is thin with 6 folds on each side (Fig. 26A) and 5 longitudinal vessels between each of them. The vessels end in long papillae at the oesophagus entrance. The dorsal lamina is short with sharp languets. The long gut loop occupies a large part of the left body side (Fig. 26B). The long oesophagus is narrow followed by a stomach not well delimited. The hepatic gland is divided into 3 unequal lobes: two of them on each side of the cardia have small spiny papillae, another in cauliflower covers the internal side of the stomach. No endocarps were found on the intestine. The secondary loop of the intestine is wide but short ending in a 4 lobed anus. There is one curved gonad on each side of alternating hermaphrodite lobes along a central ovary (up to 14) (Fig. 26B). Each gonad lobe has an endocarp. The gonoducts open close to the atrial siphon. No endocarps were found on the body wall. The specimens from Viet Nam correspond well to specimens described by Kott(1985) loaned by the Western Australian Museum and others loaned by the Queensland Museum. Pyura arenosa is a shallow water species already recorded from Indonesia and Australia.
description: Published as part of Monniot, Françoise, 2010, Some new data on tropical western Pacific Ascidians, pp. 1-29 in Zootaxa 2561 (1) on pages 24-25, DOI: 10.11646/zootaxa.2561.1.1, http://zenodo.org/record/5304193
description: {"references": ["Herdman, W. A. (1882) Report on the tunicata collected during the voyage of H. M. S. \" Challenger \" during the years 1873 - 1876. Part. I. Ascidiae simplices. Report of the Scientific Results of the Voyage of H. M. S. Challenger during the years 1873 - 76 6, 1 - 285.", "Kott, P. (1985) The Australian Ascidiacea. Part 1. Phlebobranchiata and Stolidobranchiata. Memoirs of the Queensland Museum 23, 1 - 440."]}
Mâtürîdî Kelâm Ekolünde Mukallidin İmanı [Imitators` belief in Maturidite school of Islamic theology]
Creators: name: Demir, Abdullah
Publisher: name: Zenodo
Year: 2019
Subjects: Maturidism
Imitation
Muqallid
The belief of muqallid
Faith

description: In this study named the Belief of Imitators According to the Maturidian School of Islamic Theology, stating the viewpoint of Maturidite School about this matter has been worked. In the first chapter of the study, topics such as the essential character of belief, the relationship between belief and performance of religious duties, increase and decrease in belief, belief, and Islam and exceptions in belief have been scrutinized. In the second chapter of the research, the concepts of certainty (tahqiq) and imitation (taqlid), have been examined from the point of their terminologies as much as literally. In connection with these terms, referring to the matter of imitation and independent judgments on the Law (ijtihad) discussed amongst the Schools of Law, and the matter of imitation and certainty discussed amongst the Schools of Theology, the view of Schools of Islamic Theology on these matters have been tried to be established. The third chapter that constitutes the cornerstone of the study is allocated for stating the Maturidite view over these matters and its explanation. For this aim, in addition to the general sources in Islamic Theology, especially the books in line with the Schools of Hanafite and the Maturidite schools which have been written since the time of Abu Hanife up to now have been searched thoroughly as much as it could be attained. The problem of Imitators? Belief is one of the essential matters taken up by scholars particularly. Since the result of this matter directly engages the majority of Muslims. According to the Maturidite School, an imitator?s belief is sound but he is responsible for he does not strengthen his belief by proofs. In the Maturidite sources, the parts related to the aforesaid matters are generally an antithesis to the view of an imitator's belief is not sound held by Mutazilites, Abu al-Hasan al-Ashari, and some other theologians. Throughout our research, opinions attributed to the scholars of the Mu?tazilites and some Ash'arites which are taken up in detail and rejected by Maturidite sources cannot be obtained with clear expressions in their own sources. This study is essential owing to the point of view that from various aspects it examines the standpoint of the Maturidite School about the matter of imitators Belief on which lost of discussions have occurred.
description: Abdullah Demir. Mâtürîdî Kelâm Ekolünde Mukallidin İmanı. Yüksek Lisans Tezi, Uludağ Üniversitesi, Sosyal Bilimler Enstitüsü, Bursa, Turkey, 2006.
YAP: Tool Support for Deriving Safety Controllers from Hazard Analysis and Risk Assessments
Creators: name: Gleirscher, Mario
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Safety controllers are system or software components responsible for handling risk in many machine applications. This tool paper describes a use case and a workflow for YAP, a research tool for risk modelling and discrete-event safety controller design. The goal of this use case is to derive a safety controller from hazard analysis and risk assessment, to define a design space for this controller, and to select a verified optimal controller instance from this design space. We represent this design space as a stochastic model and use YAP for risk modelling and generation of parts of this stochastic model. For the controller verification and selection step, we use a stochastic model checker. The approach is illustrated by an example of a collaborative robot operated in a manufacturing work cell.
description: In Proceedings FMAS 2020, arXiv:2012.01176
Photoionization in negative streamers: fast computations and two propagation modes
Creators: name: Luque, Alejandro
name: Ebert, Ute
name: Montijn, Carolynne
name: Hundsdorfer, Willem
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Streamer discharges play a central role in electric breakdown of matter in pulsed electric fields, both in nature and in technology. Reliable and fast computations of the minimal model for negative streamers in simple gases like nitrogen have recently been developed. However, photoionization was not included; it is important in air and poses a major numerical challenge. We here introduce a fast and reliable method to include photoionization into our numerical scheme with adaptice grids, and we discuss its importance for negative streamers. In particular, we identify different propagation regimes where photoionization does or does not play a role.
description: 4 pages; 3 figures; Submitted to Applied Physics Letters
Critical path management for acute myocardial infarction
Creators: name: Lo, Angela B. K.
Publisher: name: University of British Columbia
Year: 2009

description: Atherosclerotic coronary artery disease continues to be the major underlying cause of myocardial infarction and the leading cause of death in Western society. Preliminary data from a number of Canadian hospitals on the treatment of acute myocardial infarction (AMI) indicate a significant gap between knowledge of proven efficacious therapies and their clinical application. This was a prospective study, with retrospective controls, of 592 AMI patients at Royal Columbian Hospital and Surrey Memorial Hospital, to determine the efficacy of a critical path for management of AMI patients. Critical path, a continuous quality improvement (CQI) tool, involves the development and implementation of pre-printed standard orders for all AMI patients. The critical path for AMI management was created based on benchmark clinical trials. The objective was to increase the utilization of betablockers, and ASA, both proven efficacious therapies. Other outcomes of interest include assessments of in-hospital mortality, length of hospital stay, and use of thrombolytics. The primary endpoints were changes in usage of ASA and betablocker after the critical path protocol. The increase in use of ASA was 1.89% (p=0.511) and in the use of beta-blocker was 4.85% (p=0.381). Secondary endpoints of in-hospital mortality and length of hospital stay demonstrated a non-significant decrease for inhospital mortality, and a 0.98 day increase in length of hospital stay. In addition, the critical path protocol led to a 2.22% increase in usage for thrornbolytics, another proven efficacious therapy, and a 13.3% decrease for calcium channel blockers, and 20.8% decrease for anti-arrhythmics, both unproven and possibly harmful medications for treatment of AMI. Implementation of the critical path protocol can be a valuable tool in maintaining the utilization of proven efficacious therapies and dissemination of medical knowledge.
Relativistic Positioning Systems: The Emission Coordinates
Creators: name: Coll, Bartolomé
name: Pozo, José María
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper introduces some general properties of the gravitational metric and the natural basis of vectors and covectors in 4-dimensional emission coordinates. Emission coordinates are a class of space-time coordinates defined and generated by 4 emitters (satellites) broadcasting their proper time by means of electromagnetic signals. They are a constitutive ingredient of the simplest conceivable relativistic positioning systems. Their study is aimed to develop a theory of these positioning systems, based on the framework and concepts of general relativity, as opposed to introducing `relativistic effects' in a classical framework. In particular, we characterize the causal character of the coordinate vectors, covectors and 2-planes, which are of an unusual type. We obtain the inequality conditions for the contravariant metric to be Lorentzian, and the non-trivial and unexpected identities satisfied by the angles formed by each pair of natural vectors. We also prove that the metric can be naturally split in such a way that there appear 2 parameters (scalar functions) dependent exclusively on the trajectory of the emitters, hence independent of the time broadcast, and 4 parameters, one for each emitter, scaling linearly with the time broadcast by the corresponding satellite, hence independent of the others.
description: 13 pages, 3 figures. Only format changed for a new submission. Submitted to Class. Quantum Grav
A Formal Model for Quality-Driven Decision Making in Self-Adaptive Systems
Creators: name: Kachi, Fatma
name: Bouanaka, Chafia
name: Merkouche, Souheir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: D.2.2, D.2.4

description: Maintaining an acceptable level of quality of service in modern complex systems is challenging, particularly in the presence of various forms of uncertainty caused by changing execution context, unpredicted events, etc. Although self-adaptability is a well-established approach for modelling such systems, and thus enabling them to achieve functional and/or quality of service objectives by autonomously modifying their behavior at runtime, guaranteeing a continuous satisfaction of quality objectives is still challenging and needs a rigorous definition and analysis of system behavioral properties. Formal methods constitute a promising and effective solution in this direction in order to rigorously specify mathematical models of a software system and to analyze its behavior. They are also largely adopted to analyze and provide guarantees on the required functional/non-functional properties of self-adaptive systems. Therefore, we introduce a formal model for quality-driven self-adaptive systems under uncertainty. We combine high-level Petri nets and plausible Petri nets in order to model complex data structures enabling system quality attributes quantification and to improve the decision-making process through selecting the most plausible plans with regard to the system's actual context.
description: In Proceedings FMAS 2020, arXiv:2012.01176
Control of a condensation process in a 3-components mixture : case of the Micro Condensed Hydrogen Peroxide sterilisation process
Creators: name: guillot, victor
Publisher: name: figshare
Year: 2021
Subjects: subject: 39903 Industrial Chemistry
subject: FOS: Chemical sciences

description: The aim of this article is to give a model and methodology to control a condensation process on a material from a 3-components gas mixture.The advantages searched are the performance and robustness of this process, required in industrial and continuous material processing.
EB-NeRD: A Large-Scale Dataset for News Recommendation
Creators: name: Kruse, Johannes
name: Lindskow, Kasper
name: Kalloori, Saikishore
name: Polignano, Marco
name: Pomo, Claudio
name: Srivastava, Abhishek
name: Uppal, Anshuk
name: Andersen, Michael Riis
name: Frellsen, Jes
Publisher: name: arXiv
Year: 2024
Subjects: subject: Information Retrieval (cs.IR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Personalized content recommendations have been pivotal to the content experience in digital media from video streaming to social networks. However, several domain specific challenges have held back adoption of recommender systems in news publishing. To address these challenges, we introduce the Ekstra Bladet News Recommendation Dataset (EB-NeRD). The dataset encompasses data from over a million unique users and more than 37 million impression logs from Ekstra Bladet. It also includes a collection of over 125,000 Danish news articles, complete with titles, abstracts, bodies, and metadata, such as categories. EB-NeRD served as the benchmark dataset for the RecSys '24 Challenge, where it was demonstrated how the dataset can be used to address both technical and normative challenges in designing effective and responsible recommender systems for news publishing. The dataset is available at: https://recsys.eb.dk.
description: 11 pages, 8 tables, 2 figures, RecSys '24
Divisibility of the stable Miller-Morita-Mumford classes
Creators: name: Galatius, Soren
name: Madsen, Ib
name: Tillmann, Ulrike
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 57R20, 55P47

description: We determine the sublattice generated by the Miller-Morita-Mumford classes $κ_i$ in the torsion free quotient of the integral cohomology ring of the stable mapping class group. We further decide when the mod p reductions $κ_i$ vanish.
description: 24 pages, 1 figure
Detection of phase singularities with a Shack-Hartmann wavefront sensor
Creators: name: Chen, Mingzhou
name: Roux, Filippus S.
name: Olivier, Jan C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: While adaptive optical systems are able to remove moderate wavefront distortions in scintillated optical beams, phase singularities that appear in strongly scintillated beams can severely degrade the performance of such an adaptive optical system. Therefore, the detection of these phase singularities is an important aspect of strong scintillation adaptive optics. We investigate the detection of phase singularities with the aid of a Shack-Hartmann wavefront sensor and show that, in spite of some systematical deficiencies inherent to the Shack-Hartmann wavefront sensor, it can be used for the reliable detection of phase singularities, irrespective of their morphologies. We provide full analytical results, together with numerical simulations of the detection process.
description: 23 pages, 9 figures
A review on turbulent and vortical flow analyses via complex networks
Creators: name: Iacobello, Giovanni
name: Ridolfi, Luca
name: Scarsoglio, Stefania
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Turbulent and vortical flows are ubiquitous and their characterization is crucial for the understanding of several natural and industrial processes. Among different techniques to study spatio-temporal flow fields, complex networks represent a recent and promising tool to deal with the large amount of data on turbulent flows and shed light on their physical mechanisms. The aim of this review is to bring together the main findings achieved so far from the application of network-based techniques to study turbulent and vortical flows. A critical discussion on the potentialities and limitations of the network approach is provided, thus giving an ordered portray of the current diversified literature. The present review can boost future network-based research on turbulent and vortical flows, promoting the establishment of complex networks as a widespread tool for turbulence analysis.
Soliton-like behaviour in non-integrable systems
Creators: name: Nimiwal, Raghavendra
name: Satpathi, Urbashi
name: Vasan, Vishal
name: Kulkarni, Manas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a general scheme for constructing robust excitations (soliton-like) in non-integrable multicomponent systems. By robust, we mean localised excitations that propagate with almost constant velocity and which interact cleanly with little to no radiation. We achieve this via a reduction of these complex systems to more familiar effective chiral field-theories using perturbation techniques and the Fredholm alternative. As a specific platform, we consider the generalised multicomponent Nonlinear Schrödinger Equations (MNLS) with arbitrary interaction coefficients. This non-integrable system reduces to uncoupled Korteweg-de Vries (KdV) equations, one for each sound speed of the system. This reduction then enables us to exploit the multi-soliton solutions of the KdV equation which in turn leads to the construction of soliton-like profiles for the original non-integrable system. We demonstrate that this powerful technique leads to the coherent evolution of excitations with minimal radiative loss in arbitrary non-integrable systems. These constructed coherent objects for non-integrable systems bear remarkably close resemblance to true solitons of integrable models. Although we use the ubiquitous MNLS system as a platform, our findings are a major step forward towards constructing excitations in generic continuum non-integrable systems.
description: 21 pages, 3 figures
WZW orientifolds and finite group cohomology
Creators: name: Gawedzki, Krzysztof
name: Suszek, Rafal R.
name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The simplest orientifolds of the WZW models are obtained by gauging a Z_2 symmetry group generated by a combined involution of the target Lie group G and of the worldsheet. The action of the involution on the target is by a twisted inversion g \mapsto (ζg)^{-1}, where ζis an element of the center of G. It reverses the sign of the Kalb-Ramond torsion field H given by a bi-invariant closed 3-form on G. The action on the worldsheet reverses its orientation. An unambiguous definition of Feynman amplitudes of the orientifold theory requires a choice of a gerbe with curvature H on the target group G, together with a so-called Jandl structure introduced in hep-th/0512283. More generally, one may gauge orientifold symmetry groups Γ= Z_2 \ltimes Z that combine the Z_2-action described above with the target symmetry induced by a subgroup Z of the center of G. To define the orientifold theory in such a situation, one needs a gerbe on G with a Z-equivariant Jandl structure. We reduce the study of the existence of such structures and of their inequivalent choices to a problem in group-Γcohomology that we solve for all simple simply-connected compact Lie groups G and all orientifold groups Γ= Z_2 \ltimes Z.
description: 48+1 pages, 11 figures
Influence of the losses on the super-resolution performances of an impedance matched negative index material
Creators: name: D'Aguanno, Giuseppe
name: Mattiucci, Nadia
name: Bloemer, Mark J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We discuss by a Poynting vector analysis how the losses of a negative index material (NIM) affect the resolution performances of a Veselago-Pendry lens and we analyze those performances in the framework of the Abbe criterion. Both the limit of high losses and low losses are explored. We find that the impedance matched NIM is able to resolve 30% better than the limit imposed by the Abbe criterion even when the imaginary part of the refractive index (the material losses) exceeds the absolute value of the real part of the refractive index. The NIM is described by a lossy Drude model with equal permittivity and permeability. By increasing the damping parameter of the Drude model we also explore the regime where both permittivity and permeability are positive and point out the conditions under which the metamaterial is still able to super-resolve.
Magnetization reversal and direct observation of magnetic domains on FePt thin films
Creators: name: Roman, Augusto
name: Gomez, Javier
name: Butera, Alejandro
name: Vavassori, Paolo
name: Steren, Laura B.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In ferromagnetic thin films, the presence of an out-of-plane component of the magnetic anisotropy may induce a transition from planar to stripe-like magnetic domains above a critical thickness, $t_c$. Because of the changes in the domain structure, important changes in the magnetization reversal mechanisms are observed. We present the analysis of the magnetization reversal in FePt thin films, where this phenomenon is observed, through the experimental observation of magnetic domains by magneto-optic Kerr effect microscopy. The observed reversal mechanisms are strongly dependent on the thickness of the sample. For $tt_c$, the stripe-domain structure determines the magnetization reversal.
New twinlike models for scalar fields
Creators: name: Bazeia, D.
name: Losano, L.
name: Marques, M. A.
name: Menezes, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work investigates twinlike scalar field models that support kinks with the same energy density and stability. We find the first order equations compatible with the equations of motion. We use them to calculate the conditions under which they attain the twinlike character. The linear stability is also investigated, and there we show that the addition of extra requirements may lead to the same stability under small fluctuations.
description: 5 pages; published in EPL
Observation of Bs to Psi(2S)phi and Measurement of Ratio of Branching Fractions B (Bs --> Psi(2S)phi) / B (Bs --> J/Psi phi)
Creators: name: CDF Collaboration
name: Abulencia, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the first observation of Bs to Psi(2S) phi signals using 360 pb^-1 of CDF Run II data sample, where Psi(2S) decays into mu+mu- and J/psi pi+pi- modes with phi decays to K+K-. We have measured the relative branching ratio of Br(Bs to Psi(2S)phi)/Br(Bs to J/psi phi) using J/psi, Psi(2S) to mu+mu- decay mode. We obtain Br(Bs to Psi(2S)phi)/Br(Bs to J/psi phi) = 0.52 +- 0.13 (stat.) +- 0.04 (syst.) +- 0.06 (BR).
description: 14 pages, 4 figures, submitted to Phys.Rev.Lett
The dirty work of boundary maintenance. Der Topos der "sicheren Grenzen" im neurechten Diskurs
Creators: name: Meier-Vieracker, Simon
Publisher: name: Zenodo
Year: 2021
Subjects: politics of belonging
discourse analysis
borders

description: Vortrag gehalten an der ALP-Jahrestagung 2021 "Sprachliche Grenzziehungspraktiken"
p p -> j j e+/- mu+/- nu nu and j j e+/- mu-/+ nu nu at O(α_{em}^6) and O(α_{em}^4 α_s^2) for the Study of the Quartic Electroweak Gauge Boson Vertex at LHC
Creators: name: Eboli, O. J. P.
name: Gonzalez-Garcia, M. C.
name: Mizukoshi, J. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the potential of the CERN Large Hadron Collider (LHC) to study the structure of quartic vector-boson interactions through the pair production of electroweak gauge bosons via weak boson fusion q q -> q q W W. In order to study these couplings we have performed a partonic level calculation of all processes p p -> j j e+/- mu+/- nu nu and pp -> j j e+/- mu-/+ nu nu at the LHC using the exact matrix elements at O(α_{em}^6) and O(α_{em}^4 α_s^2) as well as a full simulation of the t tbar plus 0 to 2 jets backgrounds. A complete calculation of the scattering amplitudes is necessary not only for a correct description of the process but also to preserve all correlations between the final state particles which can be used to enhance the signal. Our analyses indicate that the LHC can improve by more than one order of magnitude the bounds arising at present from indirect measurements.
description: 26 pages, 8 figures, revised version with some typos corrected, and some comments and references added