cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mean first-passage time for random walks on undirected networks
Creators: name: Zhang, Zhongzhi
name: Julaiti, Alafate
name: Hou, Baoyu
name: Zhang, Hongjuan
name: Chen, Guanrong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In this paper, by using two different techniques we derive an explicit formula for the mean first-passage time (MFPT) between any pair of nodes on a general undirected network, which is expressed in terms of eigenvalues and eigenvectors of an associated matrix similar to the transition matrix. We then apply the formula to derive a lower bound for the MFPT to arrive at a given node with the starting point chosen from the stationary distribution over the set of nodes. We show that for a correlated scale-free network of size $N$ with a degree distribution $P(d)\sim d^{-γ}$, the scaling of the lower bound is $N^{1-1/γ}$. Also, we provide a simple derivation for an eigentime identity. Our work leads to a comprehensive understanding of recent results about random walks on complex networks, especially on scale-free networks.
description: 7 pages, no figures; definitive version published in European Physical Journal B
Bogoliubov's Vision: Quasiaverages and Broken Symmetry to Quantum Protectorate and Emergence
Creators: name: Kuzemsky, A. L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In the present interdisciplinary review we focus on the applications of the symmetry principles to quantum and statistical physics in connection with some other branches of science. The profound and innovative idea of quasiaverages formulated by N.N. Bogoliubov, gives the so-called macro-objectivation of the degeneracy in domain of quantum statistical mechanics, quantum field theory and in the quantum physics in general. We discuss the complementary unifying ideas of modern physics, namely: spontaneous symmetry breaking, quantum protectorate and emergence. The interrelation of the concepts of symmetry breaking, quasiaverages and quantum protectorate was analyzed in the context of quantum theory and statistical physics. The chief purposes of this paper were to demonstrate the connection and interrelation of these conceptual advances of the many-body physics and to try to show explicitly that those concepts, though different in details, have a certain common features. Several problems in the field of statistical physics of complex materials and systems (e.g. the chirality of molecules) and the foundations of the microscopic theory of magnetism and superconductivity were discussed in relation to these ideas.
description: 88 pages, 1 figure, Refs.426
Beitrag zu den Steuereigenschaften von Einschraubenschiffen mit und ohne äußeren Kraftangriff
Creators: name: Wagner, Bernd
Publisher: name: TUHH Universitätsbibliothek
Year: 1981
Subjects: classificationCode: 52.00
subject: Maschinenbau, Energietechnik, Fertigungstechnik: Allgemeines

description: Beitrag zu den Steuereigenschaften von Einschraubenschiffen mit und ohne äußeren Kraftangriff
High-Performance, Lightweight, and Flexible Thermoplastic Polyurethane Nanocomposites with Zn2+-Substituted CoFe2O4 Nanoparticles and Reduced Graphene Oxide as Shielding Materials against Electromagnetic Pollution
Creators: name: , Anju
name: Yadav, Raghvendra Singh
name: Pötschke, Petra
name: Pionteck, Jürgen
name: Krause, Beate
name: Kuřitka, Ivo
name: Vilcakova, Jarmila
name: Skoda, David
name: Urbánek, Pavel
name: Machovsky, Michal
name: Masař, Milan
name: Urbánek, Michal
name: Jurca, Marek
name: Kalina, Lukas
name: Havlica, Jaromir
Publisher: name: Washington, DC : ACS Publications
Year: 2021
Subjects: subject: Insulators
subject: Materials
subject: Nanocomposites
subject: Nanoparticles
subject: Spinel
subject: 540
subject: 660

description: The development of flexible, lightweight, and thin high-performance electromagnetic interference shielding materials is urgently needed for the protection of humans, the environment, and electronic devices against electromagnetic radiation. To achieve this, the spinel ferrite nanoparticles CoFe2O4 (CZ1), Co0.67Zn0.33Fe2O4 (CZ2), and Co0.33Zn0.67Fe2O4 (CZ3) were prepared by the sonochemical synthesis method. Further, these prepared spinel ferrite nanoparticles and reduced graphene oxide (rGO) were embedded in a thermoplastic polyurethane (TPU) matrix. The maximum electromagnetic interference (EMI) total shielding effectiveness (SET) values in the frequency range 8.2-12.4 GHz of these nanocomposites with a thickness of only 0.8 mm were 48.3, 61.8, and 67.8 dB for CZ1-rGO-TPU, CZ2-rGO-TPU, and CZ3-rGO-TPU, respectively. The high-performance electromagnetic interference shielding characteristics of the CZ3-rGO-TPU nanocomposite stem from dipole and interfacial polarization, conduction loss, multiple scattering, eddy current effect, natural resonance, high attenuation constant, and impedance matching. The optimized CZ3-rGO-TPU nanocomposite can be a potential candidate as a lightweight, flexible, thin, and high-performance electromagnetic interference shielding material.
Directional point-contact Andreev-reflection spectroscopy of Fe-based superconductors: Fermi surface topology, gap symmetry, and electron-boson interaction
Creators: name: Daghero, D.
name: Tortello, M.
name: Ummarino, G. A.
name: Gonnelli, R. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Point-contact Andreev reflection spectroscopy (PCAR) has proven to be one of the most powerful tools in the investigation of superconductors, where it provides information on the order parameter (OP), a fundamental property of the superconducting state. In the past 20 years, successive improvements of the models used to analyze the spectra have continuously extended its capabilities, making it suited to study new superconductors with "exotic" properties such as anisotropic, nodal and multiple OPs. In Fe-based superconductors, the complex compound- and doping-dependent Fermi surface and the predicted sensitivity of the OP to fine structural details present unprecedent challenges for this technique. Nevertheless, we show here that PCAR measurements in Fe-based superconductors carried out so far have already greatly contributed to our understanding of these materials, despite some apparent inconsistencies that can be overcome if a homogeneous treatment of the data is used. We also demonstrate that, if properly extended theoretical models for Andreev reflection are used, directional PCAR spectroscopy can provide detailed information not only on the amplitude and symmetry of the OPs, but also on the nature of the pairing boson, and even give some hints about the shape of the Fermi surface.
description: 27 pages, 14 figures. Review article to appear in a special issue of Reports on Progress in Physics
TELEPATIA E NEUROCIÊNCIA
Creators: name: Renato Izak de Brito Costa
Publisher: name: Zenodo
Year: 2025

description: Este breve estudo visa apresentar evidências e reflexões sobre a existência da telepatia na vida do Homem comum. Podendo ser entendida como a capacidade que um sujeito tem de se comunicar com outro, ou receber informações de outro indivíduo, usando apenas suas capacidades mentais; não sendo necessário o uso da voz, nem gestos, nem sons como meio de comunicação, a telepatia é fator recorrente na vida humana. No entanto, como em um mundo empírico, onde se acredita que a comunicação acontece apenas através dos sentidos físicos conhecidos, seria possível trocarmos ou recebermos informações à distância apenas com o poder da mente? No decorrer deste trabalho, tentaremos responder a esta questão.

Palavras-chave : Telepatia. Neurociência. Cérebro.
Multi-scale Incoherent Electronics Transport in Graphene sheet
Creators: name: Bishnoi Bhupesh
Publisher: name: Zenodo
Year: 2022

description: In this research work, roll-to-roll chemical vapor deposited graphene device electronic transport properties are benchmarked to elucidate and comprehend mobility degradation in the real-world commercial application of graphene devices. Multifarious device design morphology in the graphene and two-dimensional material with diverse background materials compositions and processing recipes incorporate various scattering sources in the devices. To understand the nature of mobility degradation in roll-to-roll chemical vapor deposited graphene production devices, we employed multi-scale, multi-physics bottom-up, non-equilibrium Green's function-based quantum transport formalism. In this framework, we numerically incorporate various scattering mechanisms to deduce the measurand mobility at the last stage of computation to observe various scattering potential impacts on the production device performance. We have analyzed the variation in transmission, electronic charge density, electrostatic Poisson potential, energy-resolved flux density, and current-voltage characteristics and inferred the Drude mobility with different scattering potentials in various graphene devices. These scattering mechanisms treat scattering potentials as the first-order phonon Dyson self-energy term in the third loop of the two-looped self-consistent Poisson-Non-equilibrium Green's function iteration. Furthermore, multiple scattering scenarios implemented through a generalized contact self-energy scattering calculation ascribe the effect of contact scattering to the graphene device in quasi-ballistic transport limit. In this scheme, the effect of all the physical scattering mechanisms is lumped into one energy uncertainty or scattering rate parameter to include in the device's contact self-energy interaction term bound by the upper limit of Heisenberg uncertainty for the interacting quantum charged particles.
Coulomb Oscillations in Antidots in the Integer and Fractional Quantum Hall Regimes
Creators: name: Kou, A.
name: Marcus, C. M.
name: Pfeiffer, L. N.
name: West, K. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report measurements of resistance oscillations in micron-scale antidots in both the integer and fractional quantum Hall regimes. In the integer regime, we conclude that oscillations are of the Coulomb type from the scaling of magnetic field period with the number of edges bound to the antidot. Based on both gate-voltage and field periods, we find at filling factor ν = 2 a tunneling charge of e and two charged edges. Generalizing this picture to the fractional regime, we find (again, based on field and gate-voltage periods) at ν = 2/3 a tunneling charge of (2/3)e and a single charged edge.
description: related papers at http://marcuslab.harvard.edu
Supplementary Material
Creators: name: Clemmer, John
Publisher: name: figshare
Year: 2021
Subjects: subject: 80110 Simulation and Modelling
subject: FOS: Computer and information sciences
subject: 111603 Systems Physiology
subject: FOS: Basic medicine

description: Online Supplement for:Questioning the renoprotective role of L-type calcium channel blockers in chronic kidney disease using physiological modeling
Kyle H. Moore and John S. Clemmer
Department of Physiology and Biophysics, Center for Computational Medicine, University of Mississippi Medical Center, Jackson, MS 39216

Materials included:

1) Experimental Protocols

2) Supplementary figures and tables

3) Raw model outputs

4) List of model variables and files
A Nearby Analog of z~2 Compact Quiescent Galaxies with a Rotating Disk
Creators: name: Jiang, Fangzhou
name: van Dokkum, Pieter
name: Bezanson, Rachel
name: Franx, Marijn
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent studies have identified a population of compact quiescent galaxies at z\sim2. These galaxies are very rare today and establishing the existence of a nearby analog could allow us to study its structure in greater detail than is possible at high redshift. Here we present such a local analog, NGC 5845, which has a dynamical mass of M_dyn = 4.3\pm0.6\times10^10 M_sun and an effective radius of only r_e = 0.45\pm0.05kpc. We study the structure and kinematics with HST/WFPC2 data and previously published spatially resolved kinematics. We find that NGC 5845 is similar to compact quiescent galaxies at z\sim2 in terms of size versus dynamical mass (r_e-M_dyn), effective velocity dispersion versus size (sigma_e-r_e), and effective velocity dispersion versus dynamical mass (sigma_e-M_dyn). The galaxy has a prominent rotating disk evident in both the photometry and the kinematics: it extends to well beyond \geq1/3 effective radius and contribute to \geq1/4 of the total light of the galaxy. Our results lend support to the idea that a fraction of z\sim2 compact galaxies have prominent disks and positive mass-to-light ratio gradients, although we caution that NGC 5845 may have had a different formation history than the more massive compact quiescent galaxies at z\sim2.
description: 6 pages, 5 figures. Accepted for publication in ApJ Letters
title: Non-Surgical Transversal Dentoalveolar Compensation with Completely Customized Lingual Appliances versus Surgically Assisted Rapid Palatal Expansion in Adults—The Amount of Posterior Crossbite Correction
Creators: name: Schmid, Jonas Q.
name: Gerberding, Elena
name: Hohoff, Ariane
name: Kleinheinz, Johannes
name: Stamm, Thomas
name: Middelberg, Claudius
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 610 Medicine and health

description: The aim of this study was to compare the crossbite correction of a group (n = 43; f/m 19/24; mean age 27.6 ± 9.5 years) with surgically assisted rapid palatal expansion (SARPE) versus a non-surgical transversal dentoalveolar compensation (DC) group (n = 38; f/m 25/13; mean age 30.4 ± 12.9 years) with completely customized lingual appliances (CCLA). Arch width was measured on digital models at the canines (C), second premolars (P2), first molars (M1) and second molars (M2). Measurements were obtained before treatment (T0) and at the end of lingual treatment (T1) or after orthodontic alignment prior to a second surgical intervention for three-dimensional bite correction. There was no statistically significant difference (p > 0.05) in the amount of total crossbite correction between the SARPE and DC-CCLA group at C, P2, M1 and M2. Maxillary expansion was greater in the SARPE group and mandibular compression was greater in the DC-CCLA group. Crossbite correction in the DC-CCLA group was mainly a combination of maxillary expansion and mandibular compression. Dentoalveolar compensation with CCLAs as a combination of maxillary expansion and mandibular compression seems to be a clinically effective procedure to correct a transverse maxillo-mandibular discrepancy without the need for surgical assistance.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Quantum Electromagnetic Fluctuations in Inhomogeneous Dielectric Media
Creators: name: Goto, Shin-itiro
name: Tucker, Robin W.
name: Walton, Timothy J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new mathematical and computational technique for calculating quantum vacuum expectation values of energy and momentum densities associated with electromagnetic fields in bounded domains containing inhomogeneous media is discussed. This technique is illustrated by calculating the mode contributions to the difference in the vacuum force expectation between opposite ends of an inhomogeneous dielectric non-dispersive medium confined to a perfectly conducting rigid box.
description: 7 pages, appeared in Proceedings of SPIE Conference on Quantum Optics (2011)
On the supremum of the tails of normalized sums of independent Rademacher random variables
Creators: name: Pinelis, Iosif
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 60E15 (Primary) 60G50 (Secondary)

description: A well-known longstanding conjecture on the supremum of the tails of normalized sums of independent Rademacher random variables is disproved. A related conjecture, also recently disproved, is discussed.
description: 6 pages
Reverse Engineering eines Kaffeevollautomaten
Creators: name: Krüger, Niklas
Publisher: name: Zenodo
Year: 2022

description: Im Rahmen dieser Arbeit wurde der Speicher des Kaffeevollautomaten „Jura Impressa S9“ reverse engineered. Dafür wurde eine strukturierte Vorgehensweise entwickelt. Einstellung für Einstellung und Funktion für Funktion ergab sich die Bedeutung immer neuer Speicherstellen. Neu gebündelt wurden diese über eine leicht zugängliche API nach außen offen gelegt und abschließend auf einer kleinen Webseite visuell präsentiert. Dabei wurde die Vorgehensweise und die Aussagekraft der Ergebnisse kritisch hinterfragt und in den Kontext des Reverse Engineering eingeordnet.
A Case Study of Small Scale Structure Formation in 3D Supernova Simulations
Creators: name: Ellinger, Carola I.
name: Young, Patrick A.
name: Fryer, Christopher L.
name: Rockefeller, Gabriel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is suggested in observations of supernova remnants that a number of large- and small-scale structures form at various points in the explosion. Multidimensional modeling of core-collapse supernovae has been undertaken since SN1987A, and both simulations and observations suggest/show that Rayleigh-Taylor instabilities during the explosion is a main driver for the formation of structure in the remnants. We present a case study of structure formation in 3D in a \msol{15} supernova for different parameters. We investigate the effect of moderate asymmetries and different resolutions of the formation and morphology of the RT unstable region, and take first steps at determining typical physical quantities (size, composition) of arising clumps. We find that in this progenitor the major RT unstable region develops at the He/OC interface for all cases considered. The RT instabilities result in clumps that are overdense by 1-2 orders of magnitude with respect to the ambient gas, have size scales on the level of a few % of the remnant diameter, and are not diffused after the first $\sim30$ yrs of the remnant evolution, in the absence of a surrounding medium.
description: 59 pages, 34 figures
Dynamical consequences of a free interval: minimality, transitivity, mixing and topological entropy
Creators: name: Dirbák, Matúš
name: Snoha, Ľubomír
name: Špitalský, Vladimír
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B05, 37B20, 37B40 (Primary) 37E25, 54H20 (Secondary)

description: We study dynamics of continuous maps on compact metrizable spaces containing a free interval (i.e., an open subset homeomorphic to an open interval). A special attention is paid to relationships between topological transitivity, weak and strong topological mixing, dense periodicity and topological entropy as well as to the topological structure of minimal sets. In particular, a trichotomy for minimal sets and a dichotomy for transitive maps are proved.
description: 21 pages
Inverse dynamical population synthesis: Constraining the initial conditions of young stellar clusters by studying their binary populations
Creators: name: Marks, Michael
name: Kroupa, Pavel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Binary populations in young star clusters show multiplicity fractions both lower and up to twice as high as those observed in the Galactic field. We follow the evolution of a population of binary stars in dense and loose star clusters starting with an invariant initial binary population and a formal multiplicity fraction of unity, and demonstrate that these models can explain the observed binary properties in Taurus, Rho-Ophiuchus, Chamaeleon, Orion, IC 348, Upper Scorpius A, Praesepe, and the Pleiades. The model needs to consider solely different birth densities for these regions. The evolved theoretical orbital-parameter distributions are highly probable parent distributions for the observed ones. We constrain the birth conditions (stellar mass, M_ecl, and half-mass radius, r_h) for the derived progenitors of the star clusters and the overall present-day binary fractions allowed by the present model. The results compare very well with properties of molecular cloud clumps on the verge of star formation. Combining these with previously and independently obtained constraints on the birth densities of globular clusters, we identify a weak stellar mass -- half-mass radius correlation for cluster-forming cloud clumps, r_h / pc ~ (M_ecl / M_sun)^(0.13+-0.04). The ability of the model to reproduce the binary properties in all the investigated young objects, covering present-day densities from 1-10 stars pc^-3 (Taurus) to 2x10^4 stars pc^-3 (Orion), suggests that environment-dependent dynamical evolution plays an important role in shaping the present-day properties of binary populations in star clusters, and that the initial binary properties may not vary dramatically between different environments.
description: accepted for publication in A&A, 14 pages, 7 figures
Interior Regularity Estimates in High Conductivity Homogenization and Application
Creators: name: Briane, Marc
name: Capdeboscq, Yves
name: Nguyen, Luc
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J15, 35B27, 35B65

description: In this paper, uniform pointwise regularity estimates for the solutions of conductivity equations are obtained in a unit conductivity medium reinforced by a epsilon-periodic lattice of highly conducting thin rods. The estimates are derived only at a distance epsilon^{1+tau} (for some tau>0) away from the fibres. This distance constraint is rather sharp since the gradients of the solutions are shown to be unbounded locally in L^p as soon as p>2. One key ingredient is the derivation in dimension two of regularity estimates to the solutions of the equations deduced from a Fourier series expansion with respect to the fibres direction, and weighted by the high-contrast conductivity. The dependence on powers of epsilon of these two-dimensional estimates is shown to be sharp. The initial motivation for this work comes from imaging, and enhanced resolution phenomena observed experimentally in the presence of micro-structures. We use these regularity estimates to characterize the signature of low volume fraction heterogeneities in the fibred reinforced medium assuming that the heterogeneities stay at a distance epsilon^{1+tau} away from the fibres.
Are the two peaks of the Cathedral QPO real harmonics?
Creators: name: Rodriguez, Jerome
name: Varnière, Peggy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a study of the two main peaks of the so-called cathedral QPO in XTE J1859+226. While looking at the temporal evolution of the two features we show that they do not manifest the same amplitude of variations of their power, and do not seem to follow the flux variations in the same way. We then present their RMS-spectra and show that they do not have the same shape, slope and cut-off energy. We discuss these different facts and try to answer the question regarding the genuineness of their harmonic relationship.
description: 6 pages, 4 figures. Proceedings of the "HTRS 2011: Fast X-ray timing and spectroscopy at extreme count rates" conference held in Champery Switzerland
title: Three-Dimensional Cell Culture Systems in Pediatric and Adult Brain Tumor Precision Medicine
Creators: name: Riedel, Nicole C.
name: de Faria, Flavia W.
name: Alfert, Amelie
name: Bruder, Jan M.
name: Kerl, Kornelius Tobias
Publisher: name: University of Muenster, Institutional Repository MIAMI
Year: 2022
Subjects: subject: 610 Medicine and health

description: Primary brain tumors often possess a high intra- and intertumoral heterogeneity, which fosters insufficient treatment response for high-grade neoplasms, leading to a dismal prognosis. Recent years have seen the emergence of patient-specific three-dimensional in vitro models, including organoids. They can mimic primary parenteral tumors more closely in their histological, transcriptional, and mutational characteristics, thus approximating their intratumoral heterogeneity better. These models have been established for entities including glioblastoma and medulloblastoma. They have proven themselves to be reliable platforms for studying tumor generation, tumor–TME interactions, and prediction of patient-specific responses to establish treatment regimens and new personalized therapeutics. In this review, we outline current 3D cell culture models for adult and pediatric brain tumors, explore their current limitations, and summarize their applications in precision oncology.
description: Finanziert durch den Open-Access-Publikationsfonds der Westfälischen Wilhelms-Universität Münster (WWU Münster).
Temporal Psychovisual Modulation: a new paradigm of information display
Creators: name: Wu, Xiaolin
name: Zhai, Guangtao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Emerging Technologies (cs.ET)
subject: FOS: Computer and information sciences

description: We report on a new paradigm of information display that greatly extends the utility and versatility of current optoelectronic displays. The main innovation is to let a display of high refresh rate optically broadcast so-called atom frames, which are designed through non-negative matrix factorization to form bases for a class of images, and different viewers perceive selfintended images by using display-synchronized viewing devices and their own human visual systems to fuse appropriately weighted atom frames. This work is essentially a scheme of temporal psychovisual modulation in visible spectrum, using an optoelectronic modulator coupled with a biological demodulator.
Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry
Creators: name: Chang, Heon-Young
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the latitudinal distribution of sunspots observed from 1874 to 2009 using the center-of-latitude (COL). We calculate COL by taking the area-weighted mean latitude of sunspots for each calendar month. We then form the latitudinal distribution of COL for the sunspots appearing in the northern and southern hemispheres separately, and in both hemispheres with unsigned and signed latitudes, respectively. We repeat the analysis with subsets which are divided based on the criterion of which hemisphere is dominant for a given solar cycle. Our primary findings are as follows: (1) COL is not monotonically decreasing with time in each cycle. Small humps can be seen (or short plateaus) around every solar maxima. (2) The distribution of COL resulting from each hemisphere is bimodal, which can well be represented by the double Gaussian function. (3) As far as the primary component of the double Gaussian function is concerned, for a given data subset, the distributions due to the sunspots appearing in two different hemispheres are alike. Regardless of which hemisphere is magnetically dominant, the primary component of the double Gaussian function seems relatively unchanged. (4) When the northern (southern) hemisphere is dominant the width of the secondary component of the double Gaussian function in the northern (southern) hemisphere case is about twice as wide as that in the southern (northern) hemisphere. (5) For the distribution of the COL averaged with signed latitude, whose distribution is basically described by a single Gaussian function, it is shifted to the positive (negative) side when the northern (southern) hemisphere is dominant. Finally, we conclude by briefly discussing the implications of these findings on the variations in the solar activity.
description: Accepted for publication in New Astronomy
Critical analysis of spirometric patterns in correlation to chest computed tomography among adult Indigenous Australians with chronic airway diseases
Creators: name: Heraganahally, Subash S
name: Howarth, Timothy
name: Mo, Lin
name: Sorger, Lisa
name: Saad, Helmi Ben
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Background: There is sparse literature evidence in the spirometric patterns of adult Indigenous Australians with and without chest computed tomography (CT)-proven chronic airway diseases (CADs).Methods: Participants spirometry testing graded as acceptable for quality and had a chest CT scan showing radiographic evidence of CADs were included for analysis.Results: Of the 1350 spirometric tests performed between 2012 and 2020, a total of 212 patients with a mean age of 53 years and 54% females were eligible to be included. One-third (30%) had normal chest CT (without CADs), 35% had predominant COPD, 19% bronchiectasis and 16% combined COPD and bronchiectasis. Percentage predicted values for forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) both pre- and post- bronchodilator were significantly reduced for all participants – FVC: CT-normal 64%, 65%; COPD 58%, 62%; bronchiectasis 54%, 54%; combined COPD and bronchiectasis 50%, 53%. FEV1: CT-normal 62%, 65%; COPD 46%, 49%; bronchiectasis 48%,51%; combined COPD and bronchiectasis 36%,40%. FEV1/FVC was only reduced for CT abnormality patients – CT-normal 96%,98%; COPD 77%,77%; bronchiectasis 87%,89%; combined COPD and bronchiectasis 71%,72%.Conclusions: Restrictive spirometric pattern is common and an obstructive pattern with COPD, in isolation or when COPD coexists with bronchiectasis.
NGC 4656UV: A UV-selected Tidal Dwarf Galaxy Candidate
Creators: name: Schechtman-Rook, Andrew
name: Hess, Kelley M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of a UV-bright tidal dwarf galaxy candidate in the NGC 4631/4656 galaxy group, which we designate NGC 4656UV. Using survey and archival data spanning from 1.4 GHz to the ultraviolet we investigate the gas kinematics and stellar properties of this system. The HI morphologies of NGC 4656UV and its parent galaxy NGC 4656 are extremely disturbed, with significant amounts of counterrotating and extraplanar gas. From UV-FIR photometry, computed using a new method to correct for surface gradients on faint objects, we find that NGC 4656UV has no significant dust opacity and a blue spectral energy distribution. We compute a star formation rate of 0.027 M_sun yr^-1 from the FUV flux and measure a total HI mass of 3.8x10^8 M_sun for the object. Evolutionary synthesis modeling indicates that NGC 4656UV is a low metallicity system whose only major burst of star formation occurred within the last ~260-290 Myr. The age of the stellar population is consistent with a rough timescale for a recent tidal interaction between NGC 4656 and NGC 4631, although we discuss the true nature of the object--whether it is tidal or pre-existing in origin--in the context of its metallicity being a factor of ten lower than its parent galaxy. We estimate that NGC 4656UV is either marginally bound or unbound. If bound, it contains relatively low amounts of dark matter. The abundance of archival data allows for a deeper investigation into this dynamic system than is currently possible for most TDG candidates.
description: 15 pages. 11 figures. Accepted for publication in ApJ
Bayesian network meta-analysis of the efficacy of 22 ventilation strategies in premature infants with respiratory distress syndrome
Creators: name: Guo, Yunyun
name: Fan, Ling
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Introduction: Respiratory Distress Syndrome (RDS) is a common lung disease in the neonatal period. The infants are mostly premature, with a high mortality rate and many complications. Currently, respiratory support therapy is still one of the primary treatment measures for RDS in preterm infants. There are 22 modes of ventilation currently in use. Areas covered: We searched the Cochrane Central Register of Controlled Trials (CENTRAL) in the Cochrane Library, EMBASE, MEDLINE, CINAHL, and Web of Science by using a combination of Medical Subject Headings (MeSH) and text words. The search time limit is set from the establishment of the above-mentioned databases to August 2020. Expert opinion: In total, 37 randomized controlled trials were included for the network meta-analysis, which consisted of 5,101 patients who received one of 22 ventilation modes. The results of the network meta-analysis showed that the Volume-Control (by adjusting tidal volume) ventilation mode is the most successful in reducing the mortality of preterm infants with RDS, followed by Synchronized Intermittent Mechanical Ventilation and Volume Guaranteed Ventilation. This network meta-analysis highlights the variability in techniques within treatment of acute respiratory distress syndrome in premature infants and compares different ventilation strategies. This study is registered with PROSPERO, number CRD42020213050. Conclusion: This network meta-analysis highlights the variability in techniques within treatment of acute respiratory distress syndrome in premature infants and compares different ventilation strategies. Future studies need to be rigorous in design and delivery and include comprehensive descriptions of all aspects of methodology to further enable appraisal and interpretation of results. This study is registered with PROSPERO, number CRD42020213050.
Third-order superintegrable systems separable in parabolic coordinates
Creators: name: Popper, I.
name: Post, S.
name: Winternitz, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: 70Hxx, 37Jxx

description: In this paper, we investigate superintegrable systems which separate in parabolic coordinates and admit a third-order integral of motion. We give the corresponding determining equations and show that all such systems are multi-separable and so admit two second-order integrals. The third-order integral is their Lie or Poisson commutator. We discuss how this situation is different from the Cartesian and polar cases where new potentials were discovered which are not multi-separable and which are expressed in terms of Painlevé transcendents or elliptic functions.
Beiträge zur Besiedlungsgeschichte Mitteldeutschlands im letzten Jahrhundert v. Chr.
Creators: name: Becker, A.
Publisher: name: Jahresschrift für mitteldeutsche Vorgeschichte
Year: 2020

description: Jahresschrift für mitteldeutsche Vorgeschichte, Bd. 20 (1932): Jahresschrift für die Vorgeschichte der sächsisch-thüringischen Länder
RX J0942.7-7726AB: an isolated pre-main sequence wide binary
Creators: name: Murphy, Simon J.
name: Lawson, Warrick A.
name: Bessell, Michael S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of two young M-dwarfs, RX J0942.7-7726 (M1) and 2MASS J09424157-7727130 (M4.5), that were found only 42 arcsec apart in a survey for pre-main sequence stars surrounding the open cluster eta Chamaeleontis. Both stars have congruent proper motions and near-infrared photometry. Medium-resolution spectroscopy reveals that they are coeval (age 8-12 Myr), codistant (100-150 pc) and thus almost certainly form a true wide binary with a projected separation of 4000-6000 AU. The system appears too old and dynamically fragile to have originated in eta Cha and a traceback analysis argues for its birth in or near the Scorpius-Centaurus OB Association. RX J0942.7-7726AB joins a growing group of wide binaries kinematically linked to Sco-Cen, suggesting that such fragile systems can survive the turbulent environment of their natal molecular clouds while still being dispersed with large velocities. Conversely, the small radial velocity difference between the stars (2.7 \pm 1.0 km/s) could mean the system is unbound, a result of the coincidental ejection of two single stars with similar velocity vectors from the OB association early in its evolution.
description: Accepted for publication in MNRAS. 11 pages, 8 figures and 2 tables
Goeßler, Peter. Der Silberring von Trichtingen
Creators: name: Jacob-Friesen, Karl-Hermann
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2020

description: Rezension zu: Goeßler, Peter. Der Silberring von Trichtingen. Festschrift der archäologischen Gesellschaft zu Berlin zur Feier des hundertjährigen Bestehens des archäologischen Instituts des deutschen Reiches am 21. April 1929. 4°. 36 Seiten mit 28 Abbildungen im Text und 4 Tafeln. Berlin und Leipsig 1929
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 3 (1929): Nachrichten aus Niedersachsens Urgeschichte
FIR/submm spectroscopy with Herschel: first results from the VNGS and H-ATLAS surveys
Creators: name: Baes, Maarten
name: Fritz, Jacopo
name: Rangwala, Naseem
name: Panuzzo, Pasquale
name: Wilson, Christine D.
name: Eales, Steve
name: Valtchanov, Ivan
name: Consortium, the VNGS
name: Consortium, the H-ATLAS
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The FIR/submm window is one of the least-studied regions of the electromagnetic spectrum, yet this wavelength range is absolutely crucial for understanding the physical processes and properties of the ISM in galaxies. The advent of the Herschel Space Observatory has opened up the entire FIR/submm window for spectroscopic studies. We present the first FIR/submm spectroscopic results on both nearby and distant galaxies obtained in the frame of two Herschel key programs: the Very Nearby Galaxies Survey and the Herschel ATLAS.
Enabling technologies for precise aerial manufacturing with unmanned aerial vehicles
Creators: name: Chermprayong, Pisak
Publisher: name: Imperial College London
Year: 2019

description: The construction industry is currently experiencing a revolution with automation techniques such as additive manufacturing and robot-enabled construction. Additive Manufacturing (AM) is a key technology that can o er productivity improvement in the construction industry by means of o -site prefabrication and on-site construction with automated systems. The key bene t is that building elements can be fabricated with less materials and higher design freedom compared to traditional manual methods. O -site prefabrication with AM has been investigated for some time already, but it has limitations in terms of logistical issues of components transportation and due to its lack of design exibility on-site. On-site construction with automated systems, such as static gantry systems and mobile ground robots performing AM tasks, can o er additional bene ts over o -site prefabrication, but it needs further research before it will become practical and economical. Ground-based automated construction systems also have the limitation that they cannot extend the construction envelope beyond their physical size. The solution of using aerial robots to liberate the process from the constrained construction envelope has been suggested, albeit with technological challenges including precision of operation, uncertainty in environmental interaction and energy e ciency. This thesis investigates methods of precise manufacturing with aerial robots. In particular, this work focuses on stabilisation mechanisms and origami-based structural elements that allow aerial robots to operate in challenging environments. An integrated aerial self-aligning delta manipulator has been utilised to increase the positioning accuracy of the aerial robots, and a Material Extrusion (ME) process has been developed for Aerial Additive Manufacturing (AAM). A 28-layer tower has been additively manufactured by aerial robots to demonstrate the feasibility of AAM. Rotorigami and a bioinspired landing mechanism demonstrate their abilities to overcome uncertainty in environmental interaction with impact protection capabilities and improved robustness for UAV. Design principles using tensile anchoring methods have been explored, enabling low-power operation and explores possibility of low-power aerial stabilisation. The results demonstrate that precise aerial manufacturing needs to consider not only just the robotic aspects, such as ight control algorithms and mechatronics, but also material behaviour and environmental interaction as factors for its success.
A holographic model for large N thermal QCD
Creators: name: Mia, Mohammed
name: Dasgupta, Keshav
name: Gale, Charles
name: Jeon, Sangyong
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We summarize the dual gravity description for a thermal gauge theory, reviewing the key features of our holographic model of large N QCD and elaborating on some new results.The theory has matter in the fundamental representation and the gauge coupling runs logarithmically with energy scale at low energies. At the highest energies the theory becomes approximately scale invariant, much like what we would expect for large N QCD although not with asymptotic freedom. In this limit the theory has a gravity dual captured by an almost classical supergravity description with a controlled quantum behavior, such that by renormalizing the supergravity action, we can compute the stress tensor of the dual gauge theory. From the stress tensor we obtain the shear viscosity and the entropy of the medium at a temperature T, and the violation of the bound for the viscosity to the entropy ratio is then investigated. By considering dynamics of open strings in curved spacetime described by the supergravity limit, we compute the drag and diffusion coefficients for a heavy parton traversing the thermal medium. It is shown that both coefficients have a logarithmic dependence on momentum, consistent with pQCD expectations. Finally, we study the confinement/deconfinement mechanism for quarks by analyzing open strings in the presence of the flavor seven branes. We find linear confinement of quarks at low temperatures, while at high temperatures the quarkonium states melt, a behavior consistent with the existence of a deconfined phase.
description: LaTex, 27 pages, 5 figures; v2: Acknowledgements added, some typos and references corrected
[Annoncen]
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 46 Nr. 2 (2005): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
A Hierarchy of Tree-Automatic Structures
Creators: name: Finkel, Olivier
name: Todorcevic, Stevo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Logic (math.LO)
subject: Logic in Computer Science (cs.LO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We consider $ω^n$-automatic structures which are relational structures whose domain and relations are accepted by automata reading ordinal words of length $ω^n$ for some integer $n\geq 1$. We show that all these structures are $ω$-tree-automatic structures presentable by Muller or Rabin tree automata. We prove that the isomorphism relation for $ω^2$-automatic (resp. $ω^n$-automatic for $n>2$) boolean algebras (respectively, partial orders, rings, commutative rings, non commutative rings, non commutative groups) is not determined by the axiomatic system ZFC. We infer from the proof of the above result that the isomorphism problem for $ω^n$-automatic boolean algebras, $n > 1$, (respectively, rings, commutative rings, non commutative rings, non commutative groups) is neither a $Σ_2^1$-set nor a $Π_2^1$-set. We obtain that there exist infinitely many $ω^n$-automatic, hence also $ω$-tree-automatic, atomless boolean algebras $B_n$, $n\geq 1$, which are pairwise isomorphic under the continuum hypothesis CH and pairwise non isomorphic under an alternate axiom AT, strengthening a result of [FT10].
description: To appear in The Journal of Symbolic Logic. arXiv admin note: substantial text overlap with arXiv:1007.0822
[Annoncen]
Creators: name: Die Redaktion
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 49 Nr. 3 (2008): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Confronting Top AFB with Parity Violation Constraints
Creators: name: Gresham, Moira I.
name: Kim, Ian-Woo
name: Tulin, Sean
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the implications of low-energy precision tests of parity violation on t-channel mediator models explaining the top AFB excess measured by CDF and D0. Flavor-violating u-t or d-t couplings of new scalar or vector mediators generate at one-loop an anomalous contribution to the nuclear weak charge. As a result, atomic parity violation constraints disfavor at >3 sigma t-channel models that give rise to a greater than 20% AFB at the parton level for M_tt > 450 GeV while not producing too large a top cross-section. Even stronger constraints are expected through future measurements of the proton weak charge by the Q-Weak experiment.
description: 4 pages
Bericht von der Verleihung des Internationalen Denkmalschutzpreises auf der „denkmal“ 2008
Creators: name: Hildebrandt, Siegfried
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 50 Nr. 1 (2009): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Menumbuhkan Kemampuan Berfikir Kritis & Kreatif Siswa Dalam Pembelajaran Matematika Melalui Pendekatan Scientific Versi Kurikulum 2013
Creators: name: Irwansyah, Budi
Publisher: name: figshare
Year: 2022
Subjects: Other education not elsewhere classified
Teacher education and professional development of educators
Higher education
Education assessment and evaluation

description: Kehadiran kurikulum 2013 suatu peran yang harus diemban oleh perguruan tinggi dalam memberikan kontribusi terhadap pendidikan yang menanamkan nilai karakter sesuai dengan tujuan Pendidikan Nasional. Untuk itu STAIN Zawiyah Cot Kala Langsa Melaksanakan seminar tentang pelaksanaan kurikulum 2013 dalam rangka merespon perkembangan dan perubahan yang terkait dengan proses pembelajaran dalam dunia pendidikan.