cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Macroscopic Zeno effect and stationary flows in nonlinear waveguides with localized dissipation
Creators: name: Zezyulin, D. A.
name: Konotop, V. V.
name: Barontini, G.
name: Ott, H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We theoretically demonstrate the possibility to observe the macroscopic Zeno effect for nonlinear waveguides with a localized dissipation. We show the existence of stable stationary flows, which are balanced by the losses in the dissipative domain. The macroscopic Zeno effect manifests itself in the non-monotonic dependence of the stationary flow on the strength of the dissipation. In particular, we highlight the importance of the parameters of the dissipation to observe the phenomenon. Our results are applicable to a large variety of systems, including condensates of atoms or quasi-particles and optical waveguides.
description: 5 pages, 3 figures, accepted to Phys. Rev. Lett
69588: Oxford University Press during World War I
Creators: name: Project Team, Oxford At War
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: In this blog article, Lizzie Shannon-Little and Martin Maw describe what happened at Oxford University Press during the war. Illustrated with several images.
Additional file 1 of Predictor of cognitive impairment: metabolic syndrome or circadian syndrome
Creators: name: Liu, Yang
name: Zang, Boying
name: Shao, Jinang
name: Ning, Ning
name: He, Lixia
name: Ma, Yanan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Cancer
subject: Mental Health
subject: Hematology
subject: Computational Biology

description: Supplementary Material 1
Anisotropic fluid for a set of non-diagonal tetrads in f(T) gravity
Creators: name: Daouda, M. Hamani
name: Rodrigues, Manuel E.
name: Houndjo, M. J. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider $f(T)$ gravity for a Weitzenbock spherically symmetric and static spacetime, where the metric is projected in the tangent space to the manifold for a set of non-diagonal tetrads. The matter content is coupled through the energy momentum tensor of an anisotropic fluid, generating various classes of new black hole and wormhole solutions. One of these classes is that of cold black holes. We also perform the reconstruction scheme of the algebraic function $f(T)$ for two cases where the radial pressure is proportional to $f(T)$ and its first derivative.
description: 12 pages. Accepted for publication in Physics Letters B (PLB)
Repeatable light paths in the conformally flat cosmological models
Creators: name: Krasiński, Andrzej
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This is a supplement to an earlier paper (PRD 84, 023510 (2011)), where those shearfree normal cosmological models were identified, in which all light rays have repeatable paths. All of them are conformally flat, but less general than the Stephani model and more general than Robertson --Walker. In this note, their defining feature is identified: in each of them, in comoving coordinates, the time-dependence factors out so that the cofactor is a static metric. Some related properties of conformal transformations are briefly discussed. Using an explicit example, it is shown that, with a suitably defined congruence of test observers and sources, non-repeatable light paths exist even in the Minkowski spacetime.
description: 3 pages, no figures. This replacement matches the published version. Shortened from 5 pages by condensing the prose and deleting details of calculation in the appendix. Journal reference added
Stationary solutions of the nonlinear Schrödinger equation with fast-decay potentials concentrating around local maxima
Creators: name: Di Cosmo, Jonathan
name: Van Schaftingen, Jean
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J65 (Primary) 35B05, 35B25, 35B40, 35J20, 35Q55 (Secondary)

description: We study positive bound states for the equation $$- ε^2 Δu + Vu = u^p, \qquad \text{in $\mathbf{R}^N$}, $$ where $ε> 0$ is a real parameter, $\frac{N}{N-2} < p < \frac{N+2}{N-2}$ and $V$ is a nonnegative potential. Using purely variational techniques, we find solutions which concentrate at local maxima of the potential $V$ without any restriction on the potential.
description: 25 pages, reformatted the abstract for MathJax
Multi-way hash join effectiveness
Creators: name: Henderson, Michael
Publisher: name: University of British Columbia
Year: 2013

description: In database systems most join algorithms are binary and will only operate on two inputs at a time. In order to join more than two input relations a database system will use the results of a binary join of two of the inputs in a second join. This way any number of input relations can be combined into a single output. There is additional cost to having multiple joins as the results of each intermediate join must be cached and processed. Recent research into joins on more than two inputs, called multi-way joins, has shown that the intermediate partitioning steps of a traditional hash join based query plan can be avoided. This decreases the amount of disk based input and output (I/Os) that the join query will require which is desirable since disk I/O is one of the slowest parts of a join. This thesis studies the advantages and disadvantages of implementing and using different multi-way join algorithms and their relative performance compared to traditional hash joins. Specifically, this work compares dynamic hash join with three multi-way join algorithms, Hash Teams, Generalized Hash Teams and SHARP. The results of the experiments show that in some limited cases these multi-way hash joins can provide a significant advantage over the traditional hash join but in many cases they can perform worse. Since the cases where these multi-way joins have better performance is so limited and their algorithms are much more complex, it does not make sense to implement Hash Teams or Generalized Hash Teams in production database management systems. SHARP provides enough of a performance advantage that it makes sense to implement it in a database system used for data warehousing.
Experimental generation of complex noisy photonic entanglement
Creators: name: Dobek, K.
name: Karpinski, M.
name: Demkowicz-Dobrzanski, R.
name: Banaszek, K.
name: Horodecki, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an experimental scheme based on spontaneous parametric down-conversion to produce multiple photon pairs in maximally entangled polarization states using an arrangement of two type-I nonlinear crystals. By introducing correlated polarization noise in the paths of the generated photons we prepare mixed entangled states whose properties illustrate fundamental results obtained recently in quantum information theory, in particular those concerning bound entanglement and privacy.
description: 12 pages, 3 figures
Uncovering the Charming Higgs at the LHC
Creators: name: Lewis, Ian
name: Schmitthenner, Jared
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the observability of the Higgs boson in the "charming Higgs" model. In this model the Higgs boson primarily undergoes a cascade decay to four charm quarks via light intermediate pseudoscalars. Such a decay allows the Higgs boson to escape the most stringent LEP bounds on the Standard Model Higgs boson mass. If the light pseudoscalars are sufficiently light they become highly boosted and their decay products collimated into jets. We show that by using jet substructure techniques, this model is potentially observable at the LHC. For a Higgs boson mass of 100 GeV and light pseudoscalar mass of 12 GeV, we find a signal significance of 3.8 sigma with a luminosity of 30 fb^-1 and that a 5 sigma significance can be obtained with 50 fb^-1 of luminosity at the 14 TeV LHC.
description: 11 pages, 8 figures. Discussion added to the conclusion, typos corrected, and references updated
Friedel Oscillations in Holographic Metals
Creators: name: Puletti, V. G. M.
name: Nowling, S.
name: Thorlacius, L.
name: Zingg, T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this article we study the conditions under which holographic metallic states display Friedel oscillations. We focus on systems where the bulk charge density is not hidden behind a black hole horizon. Understanding holographic Friedel oscillations gives a clean way to characterize the boundary system, complementary to probe fermion calculations. We find that fermions in a "hard wall" AdS geometry unambiguously display Friedel oscillations. However, similar oscillations are washed out for electron stars, suggesting a smeared continuum of Fermi surfaces.
description: 26 pages, 5 figures
The effect of agitation on the penetration depth of sodium hypochlorite into dentinal tubules.
Creators: name: Davis, Shannon Lisa
Publisher: name: University of British Columbia
Year: 2013

description: Objective: The aim of this study was to compare the difference in irrigant penetration into dentinal tubules of 6% NaOCl using the EndoActivator®, ProUltra® PiezoFlow™ and EndoVac® and to compare them with the standard side-vented ProRinse® needle. Methods: Sixty extracted anterior teeth with single canals were accessed conventionally, the pulp tissue removed and canal patency verified using minimal instrumentation. Crystal Violet dye was placed in the canals for 5 days followed by instrumentation of the canals to standard shape with ProTaper rotary files to size F4 using 1ml of 6% NaOCl used between each file. The teeth were divided into four groups and each agitation system was used with 6% NaOCl as per manufacturers recommendations. Each tooth was mounted in acrylic and cut into 1 mm thick section perpendicular to the long axis of the tooth using the Isomet® Linear Precision Saw (Censico International Pvt. Ltd.) The sections were analyzed with a Nikon® Eclipse® Microscope at 40x magnification and NaOCl penetration was measured with the NIS Elements™ Software (Nikon Corporation). Results: The maximum penetration depth for the ProRinse® side-vented needle, EndoActivator and EndoVac irrigation methods occurred in the coronal third of the canal. However, the maximum penetration depth for the ProUltra® PiezoFlow™ Ultrasonic System occurred in the middle third. With regard to NaOCl Penetration area, the coronal and middle thirds showed better area penetration than the apical third in all irrigation groups. Conclusions: The irrigation methods may affect the highest penetration depth of NaOCl into dentinal tubules at different areas of the root canal position.
Itinerari Culturali del Consiglio d’Europa: Nuovi Paradigmi per il Progetto Territoriale e per il Paesaggio
Itinerari Culturali del Consiglio d’Europa: Nuovi Paradigmi per il Progetto Territoriale e per il Paesaggio
Creators: name: Berti, Eleonora; European Institute Of Cultural Routes
Publisher: name: Campus di Rimini - Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: Cultural Routes; Landscape; Local Development; Council of Europe
Itinerari Culturali; Paesaggio; Sviluppo Locale; Consiglio d’Europa

description: The article aims at offering a methodological contribution to the study and project of cultural routes. The cultural routes are analysed considering their nature of complex territorial systems. The potential which cultural routes may develop, if considered as cultural complex and inclusive goods, is the understanding of the interactions with the landscape at the change of  socio-economic and cultural contexts crossed. In this sense, cultural routes are tools of development for a landscape project  based on the endogenous resources of the territories.
description: L’articolo intende offrire un contributo metodologico per lo studio e la progettazione degli itinerari culturali. Gli itinerari culturali sono analizzati considerandone la natura di sistemi territoriali complessi.Il potenziale che gli itinerari culturali possono sviluppare, se intesi come bene culturale complesso ed inclusivo, consiste nella comprensione delle interazioni con il paesaggio al variare dei contesti socio-economici e culturali attraversati. In questo senso, gli itinerari culturali costituiscono per i territori attraversati degli assi potenziali per un progetto di paesaggio consapevole fondato sulle risorse endogene  dei territori.
description: Almatourism - Journal of Tourism, Culture and Territorial Development; Vol 4, No 7 (2013); 13-43
Additional file 2 of Conservation and trans-regulation of histone modification in the A and B subgenomes of polyploid wheat during domestication and ploidy transition
Creators: name: Lv, Zhenling
name: Li, Zijuan
name: Wang, Meiyue
name: Zhao, Fei
name: Zhang, Wenjie
name: Li, Changping
name: Gong, Lei
name: Zhang, Yijng
name: Mason, Annaliese S.
name: Liu, Bao
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S1. Information related to data mapping for ChIP-seq and RNA-Seq.
Topological arguments for Kolmogorov complexity
Creators: name: Shen, Alexander
name: Romashchenko, Andrei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Computational Complexity (cs.CC)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: F.1.1; F.1.2; F.1.3

description: We present several application of simple topological arguments in problems of Kolmogorov complexity. Basically we use the standard fact from topology that the disk is simply connected. It proves to be enough to construct strings with some nontrivial algorithmic properties.
description: Extended version
title: Te Ahi Tipua ki Tahorakuri A1 Section 30: science review of the Ohaaki Geothermal Field to inform a hapū economic plan in degraded geothermal environments
Creators: name: White, Paul A.
name: Seward, Anya M.
name: Kora, T.
name: Bradshaw, Diane
Publisher: name: GNS Science
Year: 2021

description: Ohaaki Geothermal Field is one of the geothermal fields within the Taupō Volcanic Zone that has been used by Ngāti Tahu for centuries providing social, cultural, environmental and economic value to iwi. Ohaki is one of the principal settlements of the Ngāti Tahu iwi who have lived in close association with the Waikato River in permanent and temporary kāinga from Huka Falls west to Orākei Korakō and Pohaturoa, with the river having an important part in transportation. The Tahorakuri A130 Ahu Whenua Trust administers the 55 ha A130 land block located near Ohaki Marae. The Trust aims to continue to regrow, rebuild and reconnect whānau and hapū back to this land and to each other and unlock the value of their key assets-base: land, people, resources. To do this, the Trust aim to establish an income-generating eco-papakāinga on the A130 land block. Use of the Ohaaki Geothermal Field for power generation beginning in 1989, has seen significant adverse effects from the extraction of geothermal fluids. These effects have included the loss of many natural surface geothermal features at Ohaki, and subsidence of the area around the Ohaki Marae including the bed of the adjacent Waikato River. Widening of the Waikato River channel has resulted in the recent construction of a bund to protect the Ohaki Marae. Potential effects of Ohaaki Geothermal Field operation on the A130 land block, in regards of the land’s suitability for eco-papakāinga development, have been assessed. Historic subsidence has affected land surface level to the southeast of the A130, but generally has been of minor influence on land levels in the majority of the block as it is located north of the Ohaki subsidence bowl. Generally, the A130 land is suitable for use as an eco-papakāinga in most of the area other than the land at risk of inundation from shallow groundwater tables. A small area in the south-eastern margin of the A130 land block (i.e., near Ohaki Marae and abutting the Waikato River) is at risk from shallow groundwater tables, and possibly land inundation. This is a risk because the groundwater table elevation has been increasing in some wells located south of the block and the general land subsidence in the area, resulting in the groundwater levels being shallower. This elevation rise of groundwater levels is possibly related to Waikato River controls, e.g., the westward movement of the Waikato River river-edge position, and to increased rainfall recharge. Field work is recommended to assess the risk from shallow groundwater tables in the A130 land that includes measurement of land levels and groundwater table elevation. (auth)
Prevalence of Gastro Intestinal Nematodes of Camel Slaughtered at Akaki Abattoir, Addis Ababa, Ethiopia
Creators: name: Tibebesilasse Birhanu, 1 1Atnaf Alebie, 2Bulto Giro And 3Mersha Chanie
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: No abstract available for this resource
Fukaya Categories as Categorical Morse Homology
Creators: name: Nadler, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Symplectic Geometry (math.SG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: The Fukaya category of a Weinstein manifold is an intricate symplectic invariant of high interest in mirror symmetry and geometric representation theory. This paper informally sketches how, in analogy with Morse homology, the Fukaya category might result from gluing together Fukaya categories of Weinstein cells. This can be formalized by a recollement pattern for Lagrangian branes parallel to that for constructible sheaves. Assuming this structure, we exhibit the Fukaya category as the global sections of a sheaf on the conic topology of the Weinstein manifold. This can be viewed as a symplectic analogue of the well-known algebraic and topological theories of (micro)localization.
Incidence of Wound and Associated Risk Factors in Working Donkeys in Yilmana Densa District
Creators: name: Girma Birhan, Mersha 1 1 Chanie, 2Tewodros Tesfaye, 2Anteneh Kassa, 2Bekele Mekonnen And 2Nahom Wagaw
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: No abstract available for this resource
Comments About Hamiltonian Formulation of Non-Linear Massive Gravity with Stuckelberg Fields
Creators: name: Kluson, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform the Hamiltonian analysis of some form of the non-linear massive gravity action that is formulated in the Stuckelberg formalism. Following seminal analysis performed in arXiv:1203.5283 [hep-th] we find that this theory possesses one primary constraint which could eliminate one additional mode in this theory. We performed the explicit Hamiltonian analysis of two dimensional non-linear massive gravity and we found that this is theory free from the ghosts.
description: 17 pages,v2:typos corrected, references added, v3. Rewritten the main body of the paper after publication of the paper arXiv:1203.5283 [hep-th] where the primary constraint was identified so that the conclusion is different from the first version of the paper. It is also version that is accepted for publication in JHEP. arXiv admin note: substantial text overlap with arXiv:1202.5899, arXiv:1204.2957, arXiv:1109.3052
Occurrence, Zoonosis, Risk Factors and Effect of Swine Hydatidosis in Pigs Slaughtered at Addis Ababa Municipal Abattoir (AAMA)
Creators: name: Bewuket Esubalew, Asmare 1 1 Amuamuta And 2Mersha Chanie
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2012

description: No abstract available for this resource
The interaction of two Saccharomyces cerevisiae strains (Lalvin RC212 and Lalvin ICV-D254) during wine fermentation and its effect on fermentation-derived by-products in wine
Creators: name: Gustafsson, Frida Sofie
Publisher: name: University of British Columbia
Year: 2013

description: Little is known about the direct effect Saccharomyces cerevisiae strains have on operational wine production during fermentation. Previous research has shown two strains, Lalvin® RC212 (RC212) and Lalvin® ICV-D254 (D254), co-fermenting and occupying > 50% of the yeast population at the end of operational level fermentations. These findings suggest that D254 is competitive in tanks inoculated with RC212. The aims of this study were: (1) to follow the interactions between RC212 and D254 under in-lab and operational fermentations; and (2) to compare the fermentation-derived by-products between in-lab and operational fermentations. Five inoculation ratios of RC212 to D254 were analyzed for in-lab controlled fermentations: a) 1:0; b) 9:1; c) 3:1; d) 1:1; and e) 0:1. During the in-lab fermentations, the strain abundance was analyzed with two methods: 1) microsatellite analysis and 2) a novel strain tracking method using fluorescent quantum dot particles. Operational fermentations at Quails’ Gate Estate Winery, both inoculated and spontaneous, consisted of varying, but defined ratios obtained at the end of fermentation. Strain populations at the operational level were sampled and analyzed solely by microsatellite analysis. Wine samples were analyzed for the following fermentation-derived by-products: acetaldehyde, ethyl acetate, methanol, propanol, isobutanol, active amyl alcohol, isoamyl alcohol, ethyl butyrate, isoamyl acetate, hexanol, and 2-phenylethanol. Regression analysis was used to determine whether these compounds were associated with a specific yeast strain. During the in-lab study, both tracking methods revealed the absence of competition between the yeast strains and populations remained at the inoculated ratio throughout the fermentations. In the operational fermentations, the strain RC212 dominated inoculated fermentations, whereas D254 dominated spontaneous fermentations. During the in-lab study, acetaldehyde, propanol, isobutanol, and isoamyl alcohol significantly increased in concentration as RC212 abundance increased. Meanwhile, ethyl acetate and active amyl alcohol significantly increased as D254 increased; however, in the operational samples, only isobutanol and isoamyl alcohol were shown to be strain specific. Additionally, hierarchical cluster analysis showed that the inoculation treatment of 1:1 most closely resembled the pure D254 treatment, suggesting that D254 has a greater effect on the chemical profile than does RC212 under in-lab conditions.
Relaxed sector condition
Creators: name: Horvath, Illes
name: Toth, Balint
name: Veto, Balint
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F05, 60F17, 60J55

description: In this note we present a new sufficient condition which guarantees martingale approximation and central limit theorem a la Kipnis-Varadhan to hold for additive functionals of Markov processes. This condition which we call the relaxed sector condition (RSC) generalizes the strong sector condition (SSC) and the graded sector condition (GSC) in the case when the self-adjoint part of the infinitesimal generator acts diagonally in the grading. The main advantage being that the proof of the GSC in this case is more transparent and less computational than in the original versions. We also hope that the RSC may have direct applications where the earlier sector conditions don't apply. So far we don't have convincing examples in this direction.
description: 11 pages
What can the observation of nonzero curvature tell us?
Creators: name: Guth, Alan H.
name: Nomura, Yasunori
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The eternally inflating multiverse provides a consistent framework to understand coincidences and fine-tuning in the universe. As such, it provides the possibility of finding another coincidence: if the amount of slow-roll inflation was only slightly more than the anthropic threshold, then spatial curvature might be measurable. We study this issue in detail, particularly focusing on the question: "If future observations reveal nonzero curvature, what can we conclude?" We find that whether an observable signal arises or not depends crucially on three issues: the cosmic history just before the observable inflation, the measure adopted to define probabilities, and the nature of the correlation between the tunneling and slow-roll parts of the potential. We find that if future measurements find positive curvature at Ω_k < -10^-4, then the framework of the eternally inflating multiverse is excluded with high significance. If the measurements instead reveal negative curvature at Ω_k > 10^-4, then we can conclude (1) diffusive (new or chaotic) eternal inflation did not occur in our immediate past; (2) our universe was born by a bubble nucleation; (3) the probability measure does not reward volume increase; and (4) the origin of the observed slow-roll inflation is an accidental feature of the potential, not due to a theoretical mechanism. Discovery of Ω_k > 10^-4 would also give us nontrivial information about the correlation between tunneling and slow-roll; e.g. a strong correlation favoring large N would be excluded in certain measures. We also ask whether the current constraint on Ω_k is consistent with multiverse expectations, finding that the answer is yes, except for certain cases. In the course of this work we were led to consider vacuum decay branching ratios, and found that it is more likely than one might guess that the decays are dominated by a single channel.
description: 46 pages, 5 figures; reference updates and typo corrections arising from final Phys. Rev. D copy editing
Kalibrierung eines Bodenwasserhaushaltsmodells mit einer kombinierten Zielfunktion für die Optimierung der Wasserretentionskurve
Creators: name: Groh, Jannis
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2013
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 57.2013,4 - ISSN 1439-1783
Postnatal Care Service Utilization and Associated Factors among Women Who Gave Birth in the Last 12 Months prior to the Study in Debre Markos Town, Northwestern Ethiopia: A Community-Based Cross-Sectional Study
Creators: name: Miteku Andualem Limenih, 1 2 1 Zerfu Mulaw Endale, 1 And Berihun Assefa Dachew
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2016

description: No abstract available for this resource
Dynamical apparent horizons in inhomogeneous Brans-Dicke universes
Creators: name: Faraoni, Valerio
name: Vitagliano, Vincenzo
name: Sotiriou, Thomas P.
name: Liberati, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The presence and evolution of apparent horizons in a two-parameter family of spherically symmetric, time-dependent solutions of Brans-Dicke gravity are analyzed. These solutions were introduced to model space- and time-varying gravitational couplings and are supposed to represent central objects embedded in a spatially flat universe. We find that the solutions possess multiple evolving apparent horizons, both black hole horizons covering a central singularity and cosmological ones. It is not uncommon for two of these horizons to merge, leaving behind a naked singularity covered only by a cosmological horizon. Two characteristic limits are also explicitly worked out: the limit where the theory reduces to general relativity and the limit where the solutions become static. The physical relevance of this family of solutions is discussed.
description: 10 pages, 4 figures; v2: minor changes to match published version
Untersuchung von Niederschlagswassermanagementsystemen und deren stofflicher Wirkung auf den Vorfluter mittels hochaufgelöster Ereignisbeprobung
Creators: name: Meyer, Berenike
Publisher: name: Bundesanstalt für Gewässerkunde, Koblenz
Year: 2013
Subjects: subject: Water resources research

description: Hydrologie und Wasserbewirtschaftung / BfG – Jahrgang: 57.2013,4 - ISSN 1439-1783
Additional file 1 of Synergistic effects on itaconic acid production in engineered Aspergillus niger expressing the two distinct biosynthesis clusters from Aspergillus terreus and Ustilago maydis
Creators: name: Wang, Yaqi
name: Guo, Yufei
name: Cao, Wei
name: Liu, Hao
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Additional file figures. Figure S1. HPLC analysis of extracellular oxalic acid and citric acid in A. niger S1075; Figure S2. Screening of transformants of A. niger S1075 with cadA overexpression; Figure S3. Screening of transformants of A. niger S1361 with mttA overexpression; Figure S4. Screening of transformants of A. niger S1486 with mfsA overexpression; Figure S5. Screening of transformants of A. niger S1075 with adi1 and tad1 co-overexpression; Figure S6. Screening of transformants of A. niger S1683 with mtt1 overexpression; Figure S7. Screening of transformants of A. niger S1738 with itp1 overexpression; Figure S8. Screening of transformants of A. niger S1596 with adi1 and tad1 co-overexpression; Figure S9. Screening of transformants of A. niger S1779 with itp1 overexpression; Figure S10. Screening of transformants of A. niger S2083 with increased cadA gene copy number; Figure S11. Screening of transformants of A. niger S2288 with acoA overexpression. Additional file tables. Table S1. Extracellular organic acid (mM) in different strains at 4-day and 6-day fermentation; Table S2. Primers used in this study.
Coarse-grained spin density-functional theory: infinite-volume limit via the hyperfinite
Creators: name: Lammert, Paul E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Coarse-grained spin density functional theory (SDFT) is a version of SDFT which works with number/spin densities specified to a limited resolution --- averages over cells of a regular spatial partition --- and external potentials constant on the cells. This coarse-grained setting facilitates a rigorous investigation of the mathematical foundations which goes well beyond what is currently possible in the conventional formualation. Problems of existence, uniqueness and regularity of representing potentials in the coarse-grained SDFT setting are here studied using techniques of (Robinsonian) nonstandard analysis. Every density which is nowhere spin-saturated is V-representable, and the set of representing potentials is the functional derivative, in an appropriate generalized sense, of the Lieb interal energy functional. Quasi-continuity and closure properties of the set-valued representing potentials map are also established. The extent of possible non-uniqueness is similar to that found in non-rigorous studies of the conventional theory, namely non-uniqueness can occur for states of collinear magnetization which are eigenstates of $S_z$.
description: corrected non-propagating error in Cor. 4.2 and adopted better methods in Sec. 6B
Additional file 1 of The use of inappropriate anal douching tool associates with increased HIV infection among men who have sex with men: a cross-sectional study in Shenyang, China
Creators: name: Chu, Zhen Xing
name: Shen, Guangquan
name: Hu, Qinghai
name: Wang, Hongyi
name: Zhang, Jing
name: Dong, Willa
name: Jiang, Yongjun
name: Geng, Wenqing
name: Shang, Hong
name: Xu, Junjie
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. The questionnaire contains sociodemographic information, sexual behaviors, and RD behaviors information.
Constraining the Kinematics of Coronal Mass Ejections in the Inner Heliosphere with In-Situ Signatures
Creators: name: Rollett, T.
name: Möstl, C.
name: Temmer, M.
name: Veronig, A. M.
name: Farrugia, C. J.
name: Biernat, H. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a new approach to combine remote observations and in situ data by STEREO/HI and Wind, respectively, to derive the kinematics and propagation directions of interplanetary coronal mass ejections (ICMEs). We used two methods, Fixed-Phi and Harmonic Mean, to convert ICME elongations into distance, and constrained the ICME direction such that the ICME distance-time and velocity-time profiles are most consistent with in situ measurements of the arrival time and velocity. The derived velocity-time functions from the Sun to 1 AU for the three events under study (1-6 June 2008, 13-18 February 2009, 3-5 April 2010) do not show strong differences for the two extreme geometrical assumptions of a wide ICME with a circular front (Harmonic Mean) or an ICME of small spatial extent in the ecliptic (Fixed-Phi). Due to the geometrical assumptions, Harmonic Mean delivers the propagation direction further away from the observing spacecraft with a mean difference of ~25 degree.
Quantum Control of Two-Qubit Entanglement Dissipation
Creators: name: Schirmer, Sophie G.
name: Solomon, Allan I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate quantum control of the dissipation of entanglement under environmental decoherence. We show by means of a simple two-qubit model that standard control methods - coherent or open-loop control - will not in general prevent entanglement loss. However, we propose a control method utilising a Wiseman-Milburn feedback/measurement control scheme which will effectively negate environmental entanglement dissipation.
description: 11 pages,4 figures, minor correction
Quantifying the behaviour of curvature perturbations during inflation
Creators: name: Nalson, Ellie
name: Christopherson, Adam J.
name: Huston, Ian
name: Malik, Karim A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: How much does the curvature perturbation change after it leaves the horizon, and when should one evaluate the power spectrum? To answer these questions we study single field inflation models numerically, and compare the evolution of different curvature perturbations from horizon crossing to the end of inflation. In particular we calculate the number of efolds it takes for the curvature perturbation at a given wavenumber to settle down to within a given fraction of their value at the end of inflation. We find that e.g. in chaotic inflation, the amplitude of the comoving and the curvature perturbation on uniform density hypersurfaces differ by up to 180 % at horizon crossing assuming the same amplitude at the end of inflation, and that it takes approximately 3 efolds for the curvature perturbation to be within 1 % of its value at the end of inflation.
description: Revtex4, 11 pages, 10 figures; v2: added results section E, added references and acknowledgements; v3: clarification added to conclusions, version to appear in CQG
Efficacy of Bilateral Transversus Abdominis Plane and Ilioinguinal-Iliohypogastric Nerve Block for Post-caesarean Delivery Pain relief under Spinal Anesthesia
Creators: name: Seid Adem Adem, Zewditu Abdissa Denu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2015

description: No abstract available for this resource
Variable Accretion Rates and Fluffy First Stars
Creators: name: Smith, Rowan J.
name: Hosokawa, Takashi
name: Omukai, Kazuyuki
name: Glover, Simon C. O.
name: Klessen, Ralf S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We combine the output of hydrodynamical simulations of Population III star cluster formation with stellar evolution models, and calculate the evolution of protostars experiencing variable mass accretion rates due to interactions within a massive disk. We find that the primordial protostars are extended 'fluffy' objects for the bulk of their pre-main-sequence lifetimes. Accretion luminosity feedback from such objects is high, but as shown in previous work, has a minimal effect on the star cluster. The extended radii of the protostars, combined with the observation of close encounters in the simulations, suggests that mergers will occur in such systems. Furthermore, mass transfer between close protostellar binaries with extended radii could lead to massive tight binaries, which are a possible progenitor of gamma ray bursts.
description: 7 pages, 6 figures, 2 tables. To be published in MNRAS
title: Микробиологические и иммунологические показатели эффективности лечения больных с переломами нижней челюсти
Creators: name: Рахимов, З.К.
name: Назаров, Ж.Э.
name: Нематова, Ф.Ф.
Publisher: name: Tashkent State Dental Institute
Year: 2021

description: Вопросы этиологии, патогенеза,профилактики, диагностики и лечения гнойно- воспалительных осложнений при переломах нижней челюсти остаются актуальными в наши дни. Интерес к этой теме не ослабевает, что объясняется частотой распространения гнойно- воспалительных осложнений, утяжеление их клинических проявлений и частым развитием этих болезней.
Analysis and design of bit interleaved coded modulation based transceivers
Creators: name: Malik, Muhammad Talha
Publisher: name: University of British Columbia
Year: 2013

description: Bit-interleaved coded modulation (BICM) is a very popular approach for spectrally efficient coded transmission. In BICM, the channel encoder is separated from the modulator by a bit level interleaver. The presence of a random interleaver in BICM allows the designer a flexibility to independently choose the code rate and the modulation order. This allows an easy adaptation of the transmission rate to the channel conditions. BICM maximizes the code diversity, and therefore, is a superior alternative to the conventional trellis coded modulation (TCM) in fading channels. In additive white Gaussian noise (AWGN) channels, BICM is suboptimal because it reduces the minimum Euclidean distance. However, its flexibility and ease of implementation makes it an attractive scheme even for transmission over non-fading channels. The objective of this thesis is to investigate and optimize new BICM designs in order to further improve the BICM-based transceivers. First, we develop an analytical framework for performance evaluation of a new generalized BICM (referred to as BICM-T) transmission over AWGN channels that can be used to predict and optimize the error rate performance of such systems. Second, we investigate the performance of BICM in non-Gaussian channels due to its practical relevance. Moreover, because of its various advantages in designing a wireless transceiver, we realize that a BICM-based transceiver will be the natural choice for cooperative communication systems. Therefore, we present an innovative BICM design for cooperative communication where various BICM modules can be optimized jointly considering the average signal to noise ratios of the direct and the two-hop Rayleigh fading channels. The results presented in this thesis show that by optimizing different system modules of our proposed BICM designs, significant gains in the bit error rate (BER) performance can be achieved.
MODELOS PREDICTIVOS PARA PREGUNTAS QUE SERAN CERRADAS EN STACK OVERFLOW EN ESPAÑOL
Creators: name: García Chamba Kevin
name: Vallejos Castro Melanie
Publisher: name: Zenodo
Year: 2021
Subjects: SOES, Predicción de preguntas cerradas, Algoritmos

description: Se implementaron 3 modelos predictivos:
 Random Forest Regresión Logística Red Neuronal Convolucional Se realizan los Querys con información de la plataforma
Continuity, Deconfinement, and (Super) Yang-Mills Theory
Creators: name: Poppitz, Erich
name: Schaefer, Thomas
name: Unsal, Mithat
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the phase diagram of SU(2) Yang-Mills theory with one adjoint Weyl fermion on R^3xS^1 as a function of the fermion mass m and the compactification scale L. This theory reduces to thermal pure gauge theory as m->infinity and to circle-compactified (non-thermal) supersymmetric gluodynamics in the limit m->0. In the m-L plane, there is a line of center symmetry changing phase transitions. In the limit m->infinity, this transition takes place at L_c=1/T_c, where T_c is the critical temperature of the deconfinement transition in pure Yang-Mills theory. We show that near m=0, the critical compactification scale L_c can be computed using semi-classical methods and that the transition is of second order. This suggests that the deconfining phase transition in pure Yang-Mills theory is continuously connected to a transition that can be studied at weak coupling. The center symmetry changing phase transition arises from the competition of perturbative contributions and monopole-instantons that destabilize the center, and topological molecules (neutral bions) that stabilize the center. The contribution of molecules can be computed using supersymmetry in the limit m=0, and via the Bogomolnyi--Zinn-Justin (BZJ) prescription in the non-supersymmetric gauge theory. Finally, we also give a detailed discussion of an issue that has not received proper attention in the context of N=1 theories---the non-cancellation of nonzero-mode determinants around supersymmetric BPS and KK monopole-instanton backgrounds on R^3xS^1. We explain why the non-cancellation is required for consistency with holomorphy and supersymmetry and perform an explicit calculation of the one-loop determinant ratio.
description: A discussion of the non-cancellation of the nonzero mode determinants around supersymmetric monopole-instantons in N=1 SYM on R^3xS^1 is added, including an explicit calculation. The non-cancellation is, in fact, required by supersymmetry and holomorphy in order for the affine-Toda superpotential to be reproduced. References have also been added
Microstructure evolution during intercritical annealing of a Mn-Cr dual-phase steel
Creators: name: Kulakov, Mykola
Publisher: name: University of British Columbia
Year: 2013

description: A model was developed to describe the microstructure evolution during intercritical annealing of a low-carbon steel suitable for industrial production of dual-phase steels (DP600 grade) on a hot-dip galvanizing line. The microstructure evolution model consists of individual submodels for recrystallization, austenite formation in a fully recrystallized material and austenite decomposition after partial austenization. These submodels were developed using the Johnson-Mehl-Avrami-Kolmogorov approach and the additivity principle. The model parameters were obtained based on the results of systematic experiments addressing the effects of initial microstructures and processing conditions on the microstructure evolution in the course of intercritical annealing. The initial microstructures included 50 pct cold-rolled ferrite-pearlite, ferrite-bainite-pearlite and martensite. If heating to an intercritical temperature was sufficiently slow, recrystallization was completed before austenite formation, otherwise austenite formed in a partially recrystallized microstructure. The recrystallization-austenite formation interaction accelerated austenization in all three starting microstructures by providing additional nucleation sites and enhancing growth rates; this complex process could not be accounted for with the current modelling approach. A variety of austenite morphologies was produced by using different initial microstructures and/or by means of the interaction of recrystallization and austenite formation. Following the complete intercritical annealing cycle, the final microstructure was composed of ferrite, bainite and martensite; the latter two components inherited the distribution and morphology of those for intercritical austenite. The microstructure evolution model was validated using simulated industrial thermal paths for intercritical annealing. Laser ultrasonics was employed for in-situ monitoring of phase transformations to facilitate the validation of the microstructure evolution model.
Strongly interacting Majorana modes in an array of Josephson junctions
Creators: name: Hassler, Fabian
name: Schuricht, Dirk
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: An array of superconducting islands with semiconducting nanowires in the right regime provides a macroscopic implementation of Kitaev's toy model for Majorana wires. We show that a capacitive coupling between adjacent islands leads to an effective interaction between the Majorana modes. We demonstrate that even though strong repulsive interaction eventually drive the system into a Mott insulating state the competition between the (trivial) band-insulator and the (trivial) Mott insulator leads to an interjacent topological insulating state for arbitrary strong interactions.
description: corrected version