cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photospheric Prompt Emission From Long Gamma Ray Burst Simulations -- I. Optical Emission
Creators: name: Parsotan, Tyler
name: Lazzati, Davide
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A complete understanding of Gamma Ray Bursts (GRBs) has been difficult to achieve due to our incomplete knowledge of the radiation mechanism that is responsible for producing the prompt emission. This emission, which is detected in the first tens of seconds of the GRB, is typically dominated by hard X-ray and gamma ray photons although, there have also been a few dozen prompt optical detections. These optical detections have the potential to discriminate between plausible prompt emission models, such as the photospheric and synchrotron shock models. In this work we use an improved MCRaT code, which includes cyclo-synchrotron emission and absorption, to conduct radiative transfer calculations from optical to gamma ray energies under the photospheric model. The calculations are conducted using a set of two dimensional relativistic hydrodynamic long GRB jet simulations, consisting of a constant and variable jet. We predict the correlations between the optical and gamma ray light curves as functions of observer angle and jet variability and find that there should be extremely dim optical prompt precursors for large viewing angles. Additionally, the detected optical emission originates from dense regions of the outflow such as shock interfaces and the jet-cocoon interface. Our results also show that the photospheric model is not able to account for the current set of optical prompt detections that have been made and additional radiative mechanisms are needed to explain these prompt optical observations. These findings show the importance of conducting global radiative transfer simulations using hydrodynamically calculated jet structures.
description: 22 pages, with 5 pages for the appendix; 11 figures; accepted to ApJ; the MCRaT code is open source and available at: https://github.com/lazzati-astro/MCRaT and the ProcessMCRaT code is also open source and available at: https://github.com/parsotat/ProcessMCRaT
Detection of a low frequency quasi-periodic oscillation in the soft state of Cygnus X-1 with Insight-HXMT
Creators: name: Yan, Zhen
name: Rapisarda, Stefano
name: Yu, Wenfei
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the detection of a short-lived narrow quasi-periodic oscillation (QPO) at ~88 mHz in an Insight-HXMT observation during the soft state of the persistent black hole high mass X-ray binary Cygnus X-1. This QPO is significantly detected in all the three instruments of Insight-HXMT, so in the broad energy range 1-250 keV. The fractional rms of the QPO does not show significant variations above 3 keV (~5%) while decreases at lower energy (~2%). We show that this QPO is different from the type-A, -B, and -C QPOs usually observed in black hole X-ray binaries. We compare QPOs at similar frequencies that have been previously detected in other persistent high-mass X-ray binaries in the soft state; we speculate that such QPOs might relate to some local inhomogeneity rarely formed in the accretion flow of wind-fed accretion systems.
description: ApJ in press
Scaling of factorial moments in cumulative variables
Creators: name: Samanta, Subhasis
name: Czopowicz, Tobiasz
name: Gazdzicki, Marek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A search for power-law fluctuations within the framework of the intermittency method is ongoing to locate the critical point of the strongly interacting matter. In particular, experimental data on proton and pion production in heavy-ion collisions are analyzed in transverse-momentum, $p_T$, space. In this regard, we have studied the dependence of the second scaled factorial moment $F_2$ of particle multiplicity distribution on the number of subdivisions of transverse momentum-interval used in the analysis. The study is performed using a simple model with a power-law two-particle correlation function in $p_T$. We observe that $F_2$ values depend on the size and position of the $p_T$ interval. However, when we convert the non-uniform transverse-momentum distribution to uniform one using cumulative transformation, $F_2$ calculated in subdivisions of the cumulative $p_T$ becomes independent of the cumulative-$p_T$ interval. The scaling behaviour of $F_2$ for the cumulative variable is observed. Moreover, $F_2$ follows a power law with the number of subdivisions of the cumulative-$p_T$ interval with the intermittency index close to the correlation function's exponent.
Primitive contractions of Calabi-Yau threefolds II
Creators: name: Kapustka, Grzegorz
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10,14J15,14J30,14J32

description: We construct 16 new examples of Calabi--Yau threefolds with Picard group of rank 1. Each of these examples is obtained by smoothing the image of a primitive contraction with exceptional divisor being a del Pezzo surface of degree 6, 7 or $\mathbb{P}^1\times \mathbb{P}^1$.
description: 20 pages, to appear in JLMS
Multi-objective Digital Design Optimisation via Improved Drive Granularity Standard Cells
Creators: name: Cao, Linan
name: Bale, Simon J.
name: Trefzer, Martin A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: To tackle the complexity of state-of-the-art electronic systems, silicon foundries continuously shrink the technology nodes and electronic design automation (EDA) vendors offer hierarchical design flows to decompose systems into smaller blocks. However, such a staged design methodology consists of various levels of abstraction, where margins will be accumulated and result in degradation of the overall design quality. This limits the full use of capabilities of both the process technology and EDA tools. In this work, a study of drive granularity of standard cells is performed and an interpolation method is proposed for drive option expansion within original cell libraries. These aim to investigate how industrial synthesis tools deal with the drive strength selection using different granularity sets. In addition, a fully-automated, multi-objective (MO) EDA digital flow is introduced for power, performance, area (PPA) optimisation based on drive strength refinement. This population-based search method better handles the increased difficulty of cell selection when using larger logic libraries, producing better optimised solutions than standard tool flow in this case. The achieved experimental results demonstrate how the improved drive granularity cells overall enhance the quality of designs and how a significant improvement in trading off PPA is achieved by the MOEDA flow.
description: This work has been accepted for publication in IEEE TCAS-1
Efficient Method for Prediction of Meta-stable/Ground Multipolar Ordered States and its Application in Monolayer $α$-\ce{RuX3} (X=Cl,I)
Creators: name: Qiu, Wen-Xuan
name: Zou, Jin-Yu
name: Luo, Ai-Yun
name: Cui, Zhi-Hai
name: Song, Zhi-Da
name: Gao, Jin-Hua
name: Wang, Yi-Lin
name: Xu, Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Exotic high-rank multipolar order parameters have been found to be unexpectedly active in more and more correlated materials in recent years. Such multipoles are usually dubbed as "Hidden Orders" since they are insensitive to common experimental probes. Theoretically, it is also difficult to predict multipolar orders via \textit{ab initio} calculations in real materials. Here, we present an efficient method to predict possible multipoles in materials based on linear response theory under random phase approximation. Using this method, we successfully predict two pure meta-stable magnetic octupolar states in monolayer $α$-\ce{RuCl3}, which is confirmed by self-consistent unrestricted Hartree-Fock calculations. We then demonstrate that these octupolar states can be stabilized in monolayer $α$-\ce{RuI3}, one of which becomes the octupolar ground state. Furthermore, we also predict a fingerprint of orthogonal magnetization pattern produced by the octupole moment, which can be easily detected by experiment. The method and the example presented in this work serve as a guidance for searching multipolar order parameters in other correlated materials.
description: 15 pages,8 figures
CMB from a Gauss-Bonnet-induced de Sitter fixed point
Creators: name: Kawai, Shinsuke
name: Kim, Jinsu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the gravitational effective theories including higher curvature terms, cosmological solutions can have nontrivial de Sitter fixed points. We study phenomenological implications of such points, focusing on a theory in which a massive scalar field is nonminimally coupled to the Euler density. We first analyze the phase portrait of the dynamical system and show that the fixed point can be a sink or a saddle, depending on the strength of the coupling. Then, we compute the perturbation spectra generated in the vicinity of the fixed point in order to investigate whether the fixed point may be considered as cosmic inflation. We find parameter regions that are consistent with the cosmological data, given that the anisotropies in the cosmic microwave background are seeded by the fluctuations generated near the fixed point. Future observation may be used to further constrain the coupling function of this model. We also comment briefly on the swampland conjecture.
description: v1: 12 pages; v2: 13 pages, version accepted for publication in PRD
The political economy of the tariff : Canada in the Kennedy Round
Creators: name: Barkman, Patricia
Publisher: name: University of British Columbia
Year: 2010

description: Several studies have been conducted on the political economy of the tariff setting process. Although the result of these studies have been individually informative they have been collectively inconclusive. This is attributable both to the difficulty in developing a model which effectively describes real life, and the ensuing problem of attaining the appropriate data once a model is developed. A new model for explaining the tariff setting process, which is based largely on these earlier works, is developed for this thesis. This model tests three separate hypotheses which influence the tariff setting process. They are: 1) industry pressure groups 2) the comparative disadvantage of an industry 3) the minimization of displacement cost This model for tariff determination is applied to both nominal and effective rates of protection and changes in tariffs. The goal is to identify a particular hypothesis which explains the tariff structure and changes in tariffs. This analysis is conducted for pre-Kennedy Round nominal and effective tariffs and changes in tariffs that resulted from these negotiations. The Kennedy Round offers an interesting case for measuring changes in the determination of tariffs as it was in this round of negotiations that Canada was given exemption from the linear reduction strategy designed out for these talks. This unique role gave Canadian negotiators a certain amount of manouverability with which to streamline their strategy for reductions. To measure changes in tariffs a unique variable is constructed from tariff item data outlining concessions given by Canada in the Kennedy Round. The .constructed variable is the ratio of commodity items in an industry significantly affected by these negotiations and total imports for that industry. As such, it is a measure of the breadth of tariff concessions in an industry. This variables allows for the retesting of previous hypotheses which measure the size of tariff concessions. This thesis gives a cross sectional analysis of 100 standard industrial classification industries using ordinary least squares regression techniques. The results support the hypothesis that the structure of tariffs in Canada prior to the Kennedy Round was a function of comparative disadvantage variables. This historical development was likely a function of broad national policy interests. The results for tariff changes, as measured by the breadth of concessions, reveal little change in the motives behind negotiators in the Kennedy Round. Although special interests were inspired by the opportunity to negotiate in these talks the eventual outcome shows an overall maintenance of the pre-round determination of tariffs.
title: Wörterbuch Buch- und Bibliothekswesen deutsch - französisch
title: Dictionnaire Bibliothéconomie et Science de l´Information allemand - français
Creators: name: Michalowsky, Ulrike
name: Universitätsbibliothek Potsdam
Publisher: name: Universität Potsdam
Year: 2020

description: Glossar bibliothekarischer Begriffe. Erschließung durch Suchfunktion und Blättern (Liste mit über 5.200 Datensätzen).
Asymptotics of the fast diffusion equation via entropy estimates
Creators: name: Blanchet, Adrien
name: Bonforte, Matteo
name: Dolbeault, Jean
name: Grillo, Gabriele
name: Vázquez, Juan-Luis
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B40; 35K55; 39B62

description: We consider non-negative solutions of the fast diffusion equation $u_t=Δu^m$ with $m \in (0,1)$, in the Euclidean space R^d, d?3, and study the asymptotic behavior of a natural class of solutions, in the limit corresponding to $t\to\infty$ for $m\ge m_c=(d-2)/d$, or as t approaches the extinction time when m < mc. For a class of initial data we prove that the solution converges with a polynomial rate to a self-similar solution, for t large enough if $m\ge m_c$, or close enough to the extinction time if m < mc. Such results are new in the range $m\le m_c$ where previous approaches fail. In the range mc < m < 1 we improve on known results.
Additional file 2 of Impact of lactate dehydrogenase on prognosis of patients undergoing cardiac surgery
Creators: name: Zeng, Yu
name: Zhao, Yuhe
name: Dai, Shuren
name: Liu, Yanyan
name: Zhang, Ruoyu
name: Yan, Hong
name: Zhao, Min
name: Wang, Yong
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. Supplementary table 1. Univariate regression analyses for in-hospital mortality in MIMIC III and MIMIC IV. Supplementary table 2. Characteristics of the study population. Supplementary table 3. Correlation between LDH and other prognostic indicators.
Three dimensional modeling and geometric properties of oil plant equipment from terrestrial laser scanner observations
Creators: name: Elgndy, Ahlam I.
name: Zeidan, Zaki M.
name: Beshr, Ashraf A.
Publisher: name: Commitee on Geodesy PAS
Year: 2018
Subjects: 3D modeling
terrestrial laser scanner
point cloud
revamping
oil plant

description: The Geodesy and Cartography is a semi-annually scientific journal
 publishing peer-reviewed articles with original solutions of
 theoretical, experimental or applicable problems in the field of
 geodesy, surveying engineering, cartography and GIS, cadastre and land
 management, photogrammetry, remote sensing and related disciplines.

 The Geodesy and Cartography is published under the umbrella of the
 Committee on Geodesy of the Polish Academy of Sciences (PAS).

  Printed version ISSN 2080-6736, On-line version ISSN
 2300-2581
description: Terrestrial laser scanner (TLS) is a new class of survey instruments to
 capture spatial data developed rapidly. A perfect facility in the oil
 industry does not exist. As facilities age, oil and gas companies often
 need to revamp their plants to make sure the facilities still meet their
 specifications. Due to the complexity of an oil plant site, there are
 difficulties in revamping, having all dimensions and geometric
 properties, getting through narrow spaces between pipes and having the
 description label of each object within a facility site. So it is needed
 to develop an accurate observations technique to overcome these
 difficulties. TLS could be an unconventional solution as it accurately
 measures the coordinates identifying the position of each object within
 the oil plant and provide highly detailed 3D models. This paper
 investigates creating 3D model for Ras Gharib oil plant in Egypt and
 determining the geometric properties of oil plant equipment (tank,
 vessels, pipes . . . etc.) using TLS observations and modeling by
 CADWORX program. The modeling involves an analysis of several scans of
 the oil plant. All the processes to convert the observed points cloud
 into a 3D model are described. The geometric properties for tanks,
 vessels and pipes (radius, center coordinates, height and consequently
 oil volume) are also calculated and presented. The results provide a
 significant improvement in observing and modeling of an oil plant and
 prove that the TLS is the most effective choice for generating a
 representative 3D model required for oil plant revamping.
Exact-WKB, complete resurgent structure, and mixed anomaly in quantum mechanics on $S^1$
Creators: name: Sueishi, Naohisa
name: Kamata, Syo
name: Misumi, Tatsuhiro
name: Ünsal, Mithat
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the exact-WKB analysis for quantum mechanics in a periodic potential, with $N $ minima on $S^{1}$. We describe the Stokes graphs of a general potential problem as a network of Airy-type or degenerate Weber-type building blocks, and provide a dictionary between the two. The two formulations are equivalent, but with their own pros and cons. Exact-WKB produces the quantization condition consistent with the known conjectures and mixed anomaly. The quantization condition for the case of $N$-minima on the circle factorizes over the Hilbert sub-spaces labeled by discrete theta angle (or Bloch momenta), and is consistent with 't Hooft anomaly for even $N$ and global inconsistency for odd $N$. By using Delabaere-Dillinger-Pham formula, we prove that the resurgent structure is closed in these Hilbert subspaces, built on discrete theta vacua, and by a transformation, this implies that fixed topological sectors (columns of resurgence triangle) are also closed under resurgence.
Influence of a carbon over-coat on the X-ray reflectance of XEUS mirrors
Creators: name: Lumb, D. H.
name: Christensen, F. E.
name: Jensen, C. P.
name: Krumrey, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe measurements of the X-ray reflectance in the range 2 to 10 keV of samples representative of coated silicon wafers that are proposed for the fabrication of the XEUS (X-ray Evolving Universe Spectrometer) mission. We compare the reflectance of silicon samples coated with bare Pt, with that for samples with an additional 10nm thick carbon over-coating. We demonstrate a significant improvement in reflectance in the energy range ~1 to 4 keV, and at a grazing incidence angle of 10 mrad (0.57 degrees). We consider the resulting effective area that could be attained with an optimized design of the XEUS telescope. Typically an improvement of 10 to 60 % in effective area, depending on photon energy, can be achieved using the carbon overcoat.
description: 7 pages, 5 separate figures Accepted Optics Communications
Γυναίκα: σπουδή στη θεολογία του αγίου Κυρίλλου Αλεξανδρείας
Creators: name: Δελλόπουλος, Αχιλλέας Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Γυναίκα
Αδυναμία
Εκθήλυνση
Φύλα
Woman
Weakness
Feminization
Gender

description: Η διδακτορική μας διατριβή εξετάζει τη θέση της γυναίκας στη θεολογία του αγίου Κυρίλλου Αλεξανδρείας. Συγκεκριμένα διερευνήσαμε τις βιβλικές, ραββινικές, φιλοσοφικές και ιστορικές εξαρτήσεις της θεολογίας του Κυρίλλου Αλεξανδρείας και δείξαμε πόσο εξαρτημένος είναι ο Κύριλλος από τις εγγραφές του ανδρικού πρωτείου στη Βίβλο, από τη φιλοσοφία του Αριστοτέλη, στην οποία η γυνή υποβαθμίζεται και από τη γενικότερη εικόνα της γυναίκας στη ρωμαΐκή εποχή μέχρι και την ύστερη αρχαιότητα. Παρόλες τις επιρροές του και τους συχνά αρνητικούς όρους για τη γυναίκα η θεολογία του είναι ολιστική και η σωτηριολογία του αφορά και τα δύο φύλα.
description: Our doctoral thesis examines the position of women in the theology of St. Cyril of Alexandria. The thesis explored the biblical, rabbinical, philosophical and historical dependencies of the theology of Cyril of Alexandria and showed how deeply dependent is Cyril of the recordings of male primacy in the Bible, from the philosophy of Aristotle and the general image of women in the Roman era until the late Antiquity. Despite the influences and the use of negative terms used to describe women's weaknesses, his theology remains complete and the soteriology is common for both genders.
Analogy electromagnetism-acoustics: Validation and application to local impedance active control for sound absorption
Creators: name: Nicolas, Laurent
name: Furstoss, M.
name: Galland, Marie-Annick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: An analogy between electromagnetism and acoustics is presented in 2D. The propagation of sound in presence of absorbing material is modeled using an open boundary microwave package. Validation is performed through analytical and experimental results. Application to local impedance active control for free field sound absorption is finally described.
LaN Structural and Topological Transitions Driven by Temperature and Pressure
Creators: name: Chen, Wei-Chih
name: Lin, Chia-Min
name: Maciejko, Joseph
name: Chen, Cheng-Chien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study lanthanum mononitride LaN by first-principles calculations. The commonly reported rock-salt structure of $Fm\bar{3}m$ symmetry for rare-earth monopnictides is found dynamically unstable for LaN at zero temperature. Using density functional theory and evolutionary crystal prediction, we discover a new, dynamically stable structure with $P1$ symmetry at 0 K. This $P1$-LaN exhibits spontaneous electric polarization. Our ab initio molecular dynamics simulations of finite-temperature phonon spectra further suggest that LaN will undergo ferroelectric and structural transitions from $P1$ to $Fm\bar{3}m$ symmetry, when temperature is increased. Moreover, $P1$-LaN will transform to a tetragonal structure with $P4/nmm$ symmetry at a critical pressure $P=18$ GPa at 0 K. Electronic structures computed with an advanced hybrid functional show that the high-temperature rock-salt LaN can change from a trivial insulator to a strong topological insulator at $P \sim 14$ GPa. Together, our results indicate that when $P=14 - 18$ GPa, LaN can show simultaneous temperature-induced structural, ferroelectric, and topological transitions. Lanthanum monopnictides thereby provide a rich playground for exploring novel phases and phase transitions driven by temperature and pressure.
Boomerang uniformity of a class of power maps
Creators: name: Hasan, Sartaj Ul
name: Pal, Mohit
name: Stanica, Pantelimon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: 12E20, 11T06, 94A60

description: We consider the boomerang uniformity of an infinite class of (locally-APN) power maps and show that its boomerang uniformity over the finite field $\F_{2^n}$ is $2$ and $4$, when $n \equiv 0 \pmod 4$ and $n \equiv 2 \pmod 4$, respectively. As a consequence, we show that for this class of power maps, the differential uniformity is strictly greater than its boomerang uniformity.
description: 11 pages
Noisy neighbours: inference biases from overlapping gravitational-wave signals
Creators: name: Antonelli, Andrea
name: Burke, Ollie
name: Gair, Jonathan R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Understanding and dealing with inference biases in gravitational-wave (GW) parameter estimation when a plethora of signals are present in the data is one of the key challenges for the analysis of data from future GW detectors. Working within the linear signal approximation, we describe generic metrics to predict inference biases on GW source parameters in the presence of confusion noise from unfitted foregrounds, from overlapping signals that coalesce close in time to one another, and from residuals of other signals that have been incorrectly fitted out. We illustrate the formalism with simplified, yet realistic, scenarios appropriate to third-generation ground-based (Einstein Telescope) and space-based (LISA) detectors, and demonstrate its validity against Monte-Carlo simulations. We find it to be a reliable tool to cheaply predict the extent and direction of the biases. Finally, we show how this formalism can be used to correct for biases that arise in the sequential characterisation of multiple sources in a single data set, which could be a valuable tool to use within a global-fit analysis pipeline.
description: 19 pages, 11 figures, 4 tables; matches version accepted by MNRAS; accompanying codes at https://github.com/aantonelli94/GWOP and https://github.com/OllieBurke/Noisy_Neighbours
Quantum nonlocality without entanglement depending on nonzero prior probabilities in optimal unambiguous discrimination
Creators: name: Ha, Donghoon
name: Kim, Jeong San
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nonlocality without entanglement(NLWE) is a nonlocal phenomenon that occurs in quantum state discrimination of multipartite separable states. In the discrimination of orthogonal separable states, the term NLWE is used when the quantum states cannot be discriminated perfectly by local operations and classical communication. In this case, the occurrence of NLWE is independent of nonzero prior probabilities of quantum states being prepared. Recently, it has been found that the occurrence of NLWE can depend on nonzero prior probabilities in minimum-error discrimination of nonorthogonal separable states. Here, we show that even in optimal unambiguous discrimination, the occurrence of NLWE can depend on nonzero prior probabilities. We further show that NLWE can occur regardless of nonzero prior probabilities, even if only one state can be locally discriminated without error. Our results provide new insights into classifying sets of multipartite quantum states in terms of quantum state discrimination.
description: 10 pages, 1 figure, published version
Additional file 1 of Impact of lactate dehydrogenase on prognosis of patients undergoing cardiac surgery
Creators: name: Zeng, Yu
name: Zhao, Yuhe
name: Dai, Shuren
name: Liu, Yanyan
name: Zhang, Ruoyu
name: Yan, Hong
name: Zhao, Min
name: Wang, Yong
Publisher: name: figshare
Year: 2022
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Supplementary Figure 1. Flow chart of the study population enrollment.
Complete structural restoring of transferred multi-qubit quantum state
Creators: name: Fel'dman, E. B.
name: Pechen, A. N.
name: Zenchuk, A. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop the protocol for structural restoring of multi-quantum coherence matrices of the multi-qubit quantum state transferred from the sender to the receiver along a spin-1/2 chain. We also propose a protocol for constructing such 0-order coherence matrix that can be perfectly transferred in this process. The restoring protocol is based on the specially constructed unitary transformation of the extended receiver.{This transformation for a given length parameters of the chain is universally optimal in the sense that ones constructed it can be applied to optimally restore any higher-order coherence matrices.
description: 28 pages, 2 figure
Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture
Creators: name: Adhikari, Sadhan K.
name: Salasnich, Luca
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate the mixing-demixing transition and the collapse in a quasi-two-dimensional degenerate boson-fermion mixture (DBFM) with a bosonic vortex. We solve numerically a quantum-hydrodynamic model based on a new density functional which accurately takes into account the dimensional crossover. It is demonstrated that with the increase of interspecies repulsion, a mixed state of DBFM could turn into a demixed state. The system collapses for interspecies attraction above a critical value which depends on the vortex quantum number. For interspecies attraction just below this critical limit there is almost complete mixing of boson and fermion components. Such mixed and demixed states of a DBFM could be experimentally realized by varying an external magnetic field near a boson-fermion Feshbach resonance, which will result in a continuous variation of interspecies interaction.
description: 9 pages, 11 figures
Instability of bound states of a nonlinear Schrödinger equation with a Dirac potential
Creators: name: Le-Coz, Stefan
name: Fukuizumi, Reika
name: Fibich, Gadi
name: Ksherim, Baruch
name: Sivan, Yonatan
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study analytically and numerically the stability of the standing waves for a nonlinear Schrödinger equation with a point defect and a power type nonlinearity. A main difficulty is to compute the number of negative eigenvalues of the linearized operator around the standing waves, and it is overcome by a perturbation method and continuation arguments. Among others, in the case of a repulsive defect, we show that the standing wave solution is stable in $\hurad$ and unstable in $\hu$ under subcritical nonlinearity. Further we investigate the nature of instability: under critical or supercritical nonlinear interaction, we prove the instability by blowup in the repulsive case by showing a virial theorem and using a minimization method involving two constraints. In the subcritical radial case, unstable bound states cannot collapse, but rather narrow down until they reach the stable regime (a {\em finite-width instability}). In the non-radial repulsive case, all bound states are unstable, and the instability is manifested by a lateral drift away from the defect, sometimes in combination with a finite-width instability or a blowup instability.
Properties of the Obscuring Torus in NGC 1052 from Multi-epoch Broadband X-ray Spectroscopy
Creators: name: Baloković, M.
name: Cabral, S. E.
name: Brenneman, L.
name: Urry, C. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Obscuration of the innermost parts of active galactic nuclei (AGN) is observed in the majority of the population both in the nearby universe and at high redshift. However, the nature of the structures causing obscuration, especially in low-luminosity AGN, is poorly understood at present. We present a novel approach to multi-epoch broadband X-ray spectroscopy, anchored in the long-term average spectrum in the hard X-ray band, applied to the nearby, X-ray bright AGN in the galaxy NGC 1052. From spectral features due to X-ray reprocessing in the circumnuclear material, based on a simple, uniform-density torus X-ray reprocessing model, we find a covering factor of 80-100% and a globally averaged column density in the range (1-2) x 10^23 cm^-2. This closely matches the independently measured variable line-of-sight column density range, leading to a straightforward and self-consistent picture of the obscuring torus in NGC 1052, similar to several other AGN in recent literature. Comparing this X-ray-constrained torus model with measurements of spatially resolved sub-parsec absorption from radio observations, we find that it may be possible to account for both X-ray and radio data with a torus model featuring a steep density gradient along the axis of the relativistic jets. This provides a valuable direction for the development of improved physical models for the circumnuclear environment in NGC 1052 and potentially in a wider class of AGN.
description: 20 pages, 9 figures; published in ApJ (vol. 916, id. 90); minor update to match the final published version
Διερεύνηση της συχνότητας παρουσίας και της δυνατότητας επιβίωσης των Campylobacter spp. στο κρέας της αίγας και του προβάτου:
Creators: name: Λάζου, Θωμαή Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Καμπυλοβακτηρίδια
Σφάγιο
Πρόβατα
Αίγες
Campylobacter
Carcass
Sheep
Goat

description: Σκοπός της παρούσας διατριβής ήταν η διερεύνηση της συχνότητας παρουσίας και της δυνατότητας επιβίωσης των Campylobacter spp. στο κρέας της αίγας και του προβάτου. Κατά το πρώτο στάδιο της έρευνας διερευνήθηκε η συχνότητα παρουσίας, οι γενοτυπικές διαφορές και η ευαισθησία σε σημαντικές για τη δημόσια υγεία αντιμικροβιακές ουσίες των Campylobacter spp. που απομονώθηκαν από σφάγια αιγών και προβάτων σε επίπεδο σφαγείου. Κατά το δεύτερο στάδιο της έρευνας διερευνήθηκε η συχνότητα παρουσίας, οι γενοτυπικές διαφορές και η ευαισθησία σε σημαντικές για τη δημόσια υγεία αντιμικροβιακές ουσίες των Campylobacter spp., τα οποία απομονώθηκαν από σφάγια εριφίων και αμνών σε επίπεδο λιανικής πώλησης κρέατος. Τέλος, κατά το τρίτο στάδιο της έρευνας έγινε τεχνητός ενοφθαλμισμός τεμαχίων κρέατος αμνού με εναιώρημα C. coli και ποσοτικός προσδιορισμός του πληθυσμού των βιώσιμων βακτηρίων του παθογόνου με κλασσικές και μοριακές μεθόδους κατά τη συντήρηση του κρέατος σε συνθήκες ψύξης. Επιβεβαιώθηκε η μόλυνση των σφαγίων αιγών και προβάτων τόσο μετά τη σφαγή όσο και κατά τη λιανική πώληση με ετερογενείς πληθυσμούς θερμόφιλων καμπυλοβακτηριδίων, η αντοχή των απομονωθέντων Campylobacter spp. σε σημαντικές για τη δημόσια υγεία αντιμικροβιακές ουσίες καθώς και η μικρή μεταβολή του πληθυσμού των βιώσιμων βακτηρίων του C. coli στο κρέας αμνού κατά τη διάρκεια της συντήρησής του σε συνθήκες ψύξης.
description: The aim of the present thesis was the investigation of the prevalence and survival of Campylobacter spp. in goat and sheep meat. During the first stage of the study, the prevalence, genotypic diversity and susceptibility towards important for public health antimicrobial agents of Campylobacter spp. isolated from goat and sheep carcasses at slaughter were investigated. During the second stage of the study, the prevalence, genotypic diversity and susceptibility towards important for public health antimicrobial agents of Campylobacter spp. isolated from kid goat and lamb carcasses at retail were investigated. Finally, during the third stage of the study, pieces of lamb meat were artificially inoculated with a C. coli suspension and the viable bacterial population was enumerated with classical and molecular methods during the storage of meat under refrigeration. The contamination of goat and sheep carcasses at slaughter and retail level with heterogeneous populations of thermophilic campylobacters, the resistance of Campylobacter isolates towards important for public health antimicrobial agents as well as the small reduction of the viable C. coli population on lamb meat during its refrigeration were confirmed.
Using local nuclear scaling of initial condition parameters to improve the system size dependence of transport model descriptions of nuclear collisions
Creators: name: Zhang, Chao
name: Zheng, Liang
name: Shi, Shusu
name: Lin, Zi-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We extensively study the system size dependence of nuclear collisions with a multi-phase transport model. Previously certain key parameters for the initial condition needed significantly different values for $pp$ and central $AA$ collisions for the model to reasonably describe the yields and transverse momentum spectra of the bulk matter in those collision systems. Here we scale two key parameters, the Lund string fragmentation parameter $b_L$ and the minijet transverse momentum cutoff $p_0$, with local nuclear thickness functions from the two colliding nuclei. This allows the model to use the parameter values for $pp$ collisions with the local nuclear scaling to describe the system size and centrality dependences of nuclear collisions self consistently. In addition to providing good descriptions of $pp$ collisions from 23.6 GeV to 13 TeV and reasonable descriptions of the centrality dependence of charged particle yields for Au+Au collisions from $7.7A$ GeV to $200A$ GeV and Pb+Pb collisions at LHC energies, the improved model can now well describe the centrality dependence of the mean transverse momentum of charged particles below $p_{\rm T} \lesssim 2$ GeV. It works similarly well for smaller systems including $p$Pb, Cu+Cu and Xe+Xe collisions.
description: 10 pages, 8 figures
Structural transformations of double-walled carbon nanotube bundle under hydrostatic pressure
Creators: name: Yang, Xiaoping
name: Wu, Gang
name: Dong, Jinming
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Three kinds of the response mechanisms to the external pressure have been found for double-walled carbon nanotube (DWNT) bundle, depending strongly on their average radius and symmetry. The small-diameter DWNT bundle undergoes a small discontinuous volume change, and then deform continuously. The intermediate-diameter DWNT bundle collapses completely after a structure phase transition (SPT). Significantly, two SPTs exist for the larger-diameter DWNT bundle if the outer tube has no $C_{6}$ or $C_{3}$ symmetry. It would be interesting to search for signatures of these different structural transformations by experimentally investigating mechanical, optical and thermal response functions of DWNT bundle.
description: 9 pages, 2 figures
Additional file 1 of Deciphering the pathway-specific regulatory network for production of ten-membered enediyne Tiancimycins in Streptomyces sp. CB03234-S
Creators: name: Zhu, Manxiang
name: Zhang, Fan
name: Gan, Ting
name: Lin, Jing
name: Duan, Yanwen
name: Zhu, Xiangcheng
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Figure. Including BLAST alignment of five putative Tnm regulators, SNN analysis of putative pathway-specific regulatory genes from AFE BGCs, deletion and verification of putative tnm regulatory genes, RT-PCR analyses for determination of transcription unit in tnm, qRT-PCR analyses of tnmR2 and tnmR4 related mutants, SDS-PAGE analyses for heterologous expressions of TnmR1 and TnmR7; and tables listing the homolog alignment of putative regulators in AFEs, putative promoter regions of tnm, the strains, plasmids, and primers used in this manuscript, are all provided in the supporting information.
Total nuclear reaction cross-section database for radiation protection in space and heavy-ion therapy applications
Creators: name: Luoni, F
name: Horst, F
name: Reidel, CA
name: Quarz, A
name: Bagnale, L
name: Sihver, L
name: Weber, U
name: Norman, RB
name: de Wet, W
name: Giraudo, M
name: Santin, G
name: Norbury, J
name: Durante, M
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Realistic nuclear reaction cross-section models are an essential ingredient of reliable heavy-ion transport codes. Such codes are used for risk evaluation of manned space exploration missions as well as for ion-beam therapy dose calculations and treatment planning. Therefore, in this study, a collection of total nuclear reaction cross-section data has been generated within a GSI-ESA-NASA collaboration. The database includes the experimentally measured total nucleus-nucleus reaction cross-sections. The Tripathi, Kox, Shen, Kox-Shen, and Hybrid-Kurotama models are systematically compared with the collected data. Details about the implementation of the models are given. Literature gaps are pointed out and considerations are made about which models fit best the existing data for the most relevant systems to radiation protection in space and heavy-ion therapy.
description: 40 pages, 17 figures, 1 table
Εξέλιξη και δράση ηλεκτρομαγνητικών πεδίων σε καμπύλους χώρους:
Creators: name: Κουρέτσης, Αλέξανδρος Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Σχετικότητα
Κοσμολογία
Ηλεκτρομαγνητισμός
Διαφορική Γεωμετρία
Relativity
Cosmology
Electromagnetism
Differential Geometry

description: Σκοπός αυτής της διατριβής είναι η διερεύνηση της επίδρασης της καμπυλότητας στον ηλεκτρομαγνητικό τομέα και αντιστρόφως, χρησιμοποιώντας τον συναλλοίωτο 1+3 φορμαλισμό. Τα πρώτα δύο κεφάλαια είναι εισαγωγικά όπου παρουσιάζονται τα απαραίτητα γεωμετρικά και φυσικά εργαλεία για τα επόμενα κεφάλαια. Στο κεφάλαιο 2 εισάγουμε τη συναλλοίωτη διάσπαση 1+3 και δίνονται οι γενικές εκφράσεις διάδοσης και περιορισμού που καθορίζουν το Einstein-Maxwell φυσικό σύστημα. Στα κεφάλαια που ακολουθούν ασχολούμαστε με συγκεκριμένα όρια αυτών των εκφράσεων ώστε να περιγράψουμε τρις διαφορετικές φυσικές περιπτώσεις. Ονόματι, τη βαρυτική κατάρρευση και τη δημιουργία δομής, την αλληλεπίδραση βαρυτικής και ηλεκτρομαγνητικής ακτινοβολίας και την εξέλιξη των κοσμολογικών μαγνητικών πεδίων. Σε όλες αυτές τις περιπτώσεις βρέθηκαν συγκεκριμένες επιδράσεις από την αλληλεπίδραση του βαρυτικού και ηλεκτρομαγνητικού τομέα.
description: The purpose of this thesis is to investigate the effects of curvature on the electromagnetic sector and vice versa, using the 1+3 covariant formalism. The first two chapters are introductory where we represent the necessary geometrical and physical machinery for the following chapters. In chapter two we introduce the 1+3 covariant `split' and provide the general propagation and constrain formulas that govern the Einstein-Maxwell physical system. In the chapters to follow we consider particular limits of this propagation and constrain formulas in order to describe three different physical situations. Namely, the gravitational collapse and structure formation, the interaction between gravitational and electromagnetic waves and the evolution of cosmological magnetic fields. In all these cases we find particular effects from the interplay between the gravitational and electromagnetic sectors.
Inclusive semileptonic B decays and the determination of |V_ub|
Creators: name: Gambino, P.
name: Giordano, P.
name: Ossola, G.
name: Uraltsev, N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the triple differential distribution of B-> Xu l nu, consistently including all perturbative and non-perturbative effects through O(alphas^2 beta_0) and O(1/mb^3). The Fermi motion is parameterized in terms of a single light-cone function for each structure function and for any value of q^2, accounting for all subleading effects. We discuss the problems and uncertainties related to the high-q^2 tail and to Weak Annihilation effects. We work in the kinetic scheme, a framework characterized by a Wilsonian treatment with a hard cutoff mu ~ 1GeV. Our method is illustrated with the extraction of |V_ub| from some of the latest experimental data, providing a detailed estimate of the theoretical uncertainty.
description: 35 pages, 15 figures; v2: improved presentation, updated exp inputs, version published in JHEP
The Trans-Planckian Censorship Conjecture in different frameworks of viable inflation
Creators: name: Sanna, Bruno
name: Sebastiani, Lorenzo
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We review the recently proposed Trans-Planckian Censorship Conjecture that stems from the Trans-Planckian problem of cosmological perturbations. We analyze the implications and constraints that TCC introduces in different frameworks of viable inflation. We revisit the case of slow-roll scalar field inflation and we investigate the cases of slow-roll $f(R)$ and $f(R,ϕ)$-gravity. Finally, we consider the conjecture in the context of constant-roll scalar field inflation.
description: 14 pages, corrected some minor typos found post-publication
Black hole scalarization with Gauss-Bonnet and Ricci scalar couplings
Creators: name: Antoniou, Georgios
name: Lehébel, Antoine
name: Ventagli, Giulia
name: Sotiriou, Thomas P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spontaneous scalarization is a gravitational phenomenon in which deviations from general relativity arise once a certain threshold in curvature is exceeded, while being entirely absent below that threshold. For black holes, scalarization is known to be triggered by a coupling between a scalar and the Gauss-Bonnet invariant. A coupling with the Ricci scalar, which can trigger scalarization in neutron stars, is instead known to not contribute to the onset of black hole scalarization, and has so far been largely ignored in the literature when studying scalarized black holes. In this paper, we study the combined effect of both these couplings on black hole scalarization. We show that the Ricci coupling plays a significant role in the properties of scalarized solutions and their domain of existence. This work is an important step in the construction of scalarization models that evade binary pulsar constraints and have general relativity as a cosmological late-time attractor, while still predicting deviations from general relativity in black hole observations.
description: 8 pages, 8 figures