cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An interferometric study of the Fomalhaut inner debris disk II. Keck Nuller mid-infrared observations
Creators: name: Mennesson, B.
name: Absil, O.
name: Lebreton, J.
name: Augereau, J. -C.
name: Serabyn, E.
name: Colavita, M. M.
name: Millan-Gabet, R.
name: Liu, W.
name: Hinz, P.
name: Thebault, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We report on high contrast mid-infrared observations of Fomalhaut obtained with the Keck Interferometer Nuller (KIN) showing a small resolved excess over the level expected from the stellar photosphere. The measured null excess has a mean value of 0.35% +/- 0.10% between 8 and 11 microns and increases from 8 to 13 microns. Given the small field of view of the instrument, the source of this marginal excess must be contained within 2AU of Fomalhaut. This result is reminiscent of previous VLTI K-band observations, which implied the presence of a ~ 0.88% excess, and argued that thermal emission from hot dusty grains located within 6 AU from Fomalhaut was the most plausible explanation. Using a parametric 2D radiative transfer code and a Bayesian analysis, we examine different dust disk structures to reproduce both the near and mid-infrared data simultaneously. While not a definitive explanation of the hot excess of Fomalhaut, our model suggests that the most likely inner few AU disk geometry consists of a two-component structure, with two different and spatially distinct grain populations. The 2 to 11 microns data are consistent with an inner hot ring of very small (~ 10 to 300 nm) carbon-rich grains concentrating around 0.1AU. The second dust population consists of larger grains (size of a few microns to a few tens of microns) located further out in a colder region where regular astronomical silicates could survive, with an inner edge around 1AU. From a dynamical point of view, the presence of the inner concentration of sub-micron sized grains is surprising, as such grains should be expelled from the inner planetary system by radiation pressure within only a few years. This could either point to some inordinate replenishment rates (e.g. many grazing comets coming from an outer reservoir) or to the existence of some braking mechanism preventing the grains from moving out.
description: Accepted for publication in ApJ, Nov 2012
Recent updates on ALMT transporters’ physiology, regulation, and molecular evolution in plants
Creators: name: Dabravolski, Siarhei A.
name: Isayenkov, Stanislav V.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 580

description: Aluminium toxicity and phosphorus deficiency in soils are the main interconnected problems of modern agriculture. The aluminium-activated malate transporters (ALMTs) comprise a membrane protein family that demonstrates various physiological functions in plants, such as tolerance to environmental Al3+ and the regulation of stomatal movement. Over the past few decades, the regulation of ALMT family proteins has been intensively studied. In this review, we summarise the current knowledge about this transporter family and assess their involvement in diverse physiological processes and comprehensive regulatory mechanisms. Furthermore, we have conducted a thorough bioinformatic analysis to decipher the functional importance of conserved residues, structural components, and domains. Our phylogenetic analysis has also provided new insights into the molecular evolution of ALMT family proteins, expanding their scope beyond the plant kingdom. Lastly, we have formulated several outstanding questions and research directions to further enhance our understanding of the fundamental role of ALMT proteins and to assess their physiological functions.
Significant improvement in neuropsychological functions after awake craniotomy in a patient with Oligodendroglioma : a case report
Creators: name: Thomas, Mareike
name: Scheer, Maximilian
name: Spindler, Kai
name: Nieberlein, Laura
name: Hartwigsen, Gesa
name: Gussew, Alexander
name: Schob, Stefan
name: Prell, Julian
name: Strauss, Christian
name: Rampp, Stefan
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: Objective: The goal of awake craniotomy in glioma patients is sparing of cognitive function. Previous investigations suggest that patients in the postoperative state may reach their preoperative level regarding domain-based criteria. Data on significant postoperative improvement beyond the preoperative level is sparse. This article examines the prospective neuropsychological assessment of a glioma patient who underwent awake craniotomy and has shown functional improvement exceeding preoperative levels. Methods: A 34-year-old patient with high premorbid cognitive function level who underwent awake craniotomy for left frontal oligodendroglioma was neuropsychologically assessed and took part in a fMRI-examination at 3 different time points. Results: Preoperative examination revealed severe isolated impairment of working memory, long-term narrative memory in free recall and recognition, and alertness with intact language production and comprehension. After transient global aphasia in the postoperative state, the follow-up examination showed significant improvement in memory and attention exceeding the preoperative level. Conclusions: Tumor location is an important factor in terms of surgical procedures. Cognitive impairment is, however, not always associated with a specific location. Mechanical pressure of the tumor might have led to the isolated consolidation deficit which fully recovered after tumor removal. Psychological disorders should be taken into account regarding prodromal symptoms of neurooncological diseases.
Superconducting and thermoelectric properties of new layered Superconductor Bi4O4S3
Creators: name: Tan, S. G.
name: Li, L. J.
name: Liu, Y.
name: Tong, P.
name: Zhao, B. C.
name: Lu, W. J.
name: Sun, Y. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Polycrystalline sample of the new layered superconductor Bi4O4S3 is successfully synthesized by solid-state reaction method by using Bi, S and Bi2O3 powders with one step reaction. The superconducting transition temperature (Tconset=4.5 K), the zero resistance transition temperature (Tc0=4.07 K) and the diamagnetic transition temperature (4.02 K at H=10 Oe) were confirmed by electrical transport and magnetic measurements. Also, our results indicate a typical type II-superconductor behavior. In addition, a large thermoelectric effect was observed with a dimensionless thermoelectric figure of merit (ZT) of about 0.03 at 300K, indicating Bi4O4S3 can be a potential thermoelectric material.
description: 10 pages, 4 figures
The effectiveness of organizational justice:A meta-analysis in the Chinese context
Creators: name: Silu, Deng
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Business
subject: Human Resources Management

description: Organizational justice (OJ) can empower employees and further promote sustainable development of organizations, but its ideological evolution, construct connotation and effectiveness in the Chinese context is special. Besides the existing inertial cognition, what other rules exist for the influence of OJ? At present, numerous empirical studies have been conducted to investigate the relationship between OJ and employee’s job performance. Yet we did not get an integrated picture on OJ’s effectiveness in the Chinese context. Therefore, it is important, necessary and possible to solely focus on OJ and explore its influence mechanisms and boundary conditions.
Oxidation is an underappreciated post-translational modification in the regulation of immune responses associated with changes in phosphorylation
Creators: name: Karkossa, Isabel
name: Fürst, Sabine
name: Großkopf, Henning
name: Von Bergen, Martin
name: Schubert, Kristin
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 610

description: Although macrophages are known to be affected by their redox status, oxidation is not yet a well-recognized post-translational modification (PTM) in regulating macrophages and immune cells in general. While it has been described that the redox status of single cysteines in specific proteins is relevant for macrophage functions, global oxidation information is scarce. Hence, we globally assessed the impact of oxidation on macrophage activation using untargeted proteomics and PTM-omics. We exposed THP-1 macrophages to lipopolysaccharide (LPS) for 4 h and 24 h and applied a sequential iodoTMT labeling approach to get information on overall oxidation as well as reversible oxidation of cysteines. Thus, we identified 10452 oxidation sites, which were integratively analyzed with 5057 proteins and 7148 phosphorylation sites to investigate their co-occurance with other omics layers. Based on this integrative analysis, we found significant upregulation of several immune-related pathways, e.g. toll-like receptor 4 (TLR4) signaling, for which 19 proteins, 7 phosphorylation sites, and 39 oxidation sites were significantly affected, highlighting the relevance of oxidations in TLR4-induced macrophage activation. Co-regulation of oxidation and phosphorylation was observed, as evidenced by multiply modified proteins related to inflammatory pathways. Additionally, we observed time-dependent effects, with differences in the dynamics of oxidation sites compared to proteins and phosphorylation sites. Overall, this study highlights the importance of oxidation in regulating inflammatory processes and provides a method that can be readily applied to study the cellular redoxome globally.
When lizards shift to a more plant-based lifestyle : the macroevolution of mutualistic lizard-plant-interactions (Squamata: Sauria/Lacertilia)
Creators: name: Kahnt, Belinda
name: Theodorou, Panagiotis
name: Grimm-Seyfarth, Annegret
name: Onstein, Renske Emilie
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 590

description: Pollination and seed dispersal of plants by animals are key mutualistic processes for the conservation of plant diversity and ecosystem functioning. Although different animals frequently act as pollinators or seed dispersers, some species can provide both functions, so-called ‘double mutualists’, suggesting that the evolution of pollination and seed dispersal may be linked. Here, we assess the macroevolution of mutualistic behaviours in lizards (Lacertilia) by applying comparative methods to a phylogeny comprising 2,838 species. We found that both flower visitation (potential pollination; recorded in 64 species [2.3% of total] across 9 families) and seed dispersal (recorded in 382 species [13,5% of total] across 26 families) have evolved repeatedly in Lacertilia. Furthermore, we found that seed dispersal activity pre-dated flower visitation and that the evolution of seed dispersal activity and flower visitation was correlated, illustrating a potential evolutionary mechanism behind the emergence of double mutualisms. Finally, we provide evidence that lineages with flower visitation or seed dispersal activity have higher diversification rates than lineages lacking these behaviours. Our study illustrates the repeated innovation of (double) mutualisms across Lacertilia and we argue that island settings may provide the ecological conditions under which (double) mutualisms persist over macroevolutionary timescales.
title: Pro-inflammatory cytokines unleash natural killer cell potential for tumor therapy : NK cells want to break free
Creators: name: Ewen, Eva-Maria
Publisher: name: Heidelberg University Library
Year: 2019

description: Natural killer (NK) cells form the first line of defense against viral infections and malignant transformation and therefore represent promising targets for cancer immunotherapy. However, NK cell anti-tumor efficacy in the patient is often impaired through inhibitory signals mediated by the interaction of inhibitory killer immunoglobulin-like receptors (KIRs) with self–HLA-I expressed on autologous tumor cells. Therefore, it is crucial to circumvent KIR-mediated self-inhibition in immunotherapy to unleash autologous NK cell potency. Although the molecular mechanisms of de novo KIR expression during NK development are well established, little is known about regulation of their expression on mature NK cells. 
We here present a new strategy of transiently and safely releasing NK cells from KIR-mediated inhibition to improve autologous NK cells transfer against HLA-I–expressing tumors. Stimulation of mature peripheral blood NK cells with a combination of the cytokines interleukin (IL)-12, IL-15 and IL-18 resulted in decreased surface expression of the major inhibitory KIR2DL2/L3, KIR2DL1 and KIR3DL1 molecules. In contrast, other NK receptors remained unchanged or even got upregulated such as the IL-2 receptor alpha-chain (CD25). Most pronounced KIR downregulation was observed two days after cytokine exposure and was attributed to decreased KIR mRNA levels. Downregulation of KIR expression was transient and KIR mRNA and surface expression could be re-induced upon culture in IL-2 or IL-15. Reduced KIR2DL2/L3 expression on IL-12/15/18–activated NK cells was associated with less KIR-mediated inhibition and increased CD16-dependent cytotoxicity in redirected lysis assays. Importantly, downregulation of KIR2DL2/L3 expression enabled improved cytotoxicity of IL-12/15/18–stimulated NK cells against cognate HLA-I–expressing tumor targets. Additionally, we observed downregulation of inhibitory KIR molecules on NK cells after 3 days in a human cytomegalovirus (HCMV) infection model, representing a physiological setting with high concentrations of pro-inflammatory cytokines such as IL-12. 
Taken together, our study reports a novel mechanism of KIR downregulation on mature peripheral blood NK cells by pro-inflammatory cytokines. Decreased KIR expression of IL-12/15/18–activated NK cells translated into reduced inhibition by self–HLA-I, generating potent effectors cells for the treatment of HLA-I–expressing tumors. These results imply that the transient resistance to self-inhibition might greatly improve immunotherapy protocols especially for autologous NK cell infusions.
Butterfly species respond differently to climate warming and land use change in the northern Alps
Creators: name: Habel, Jan Christian
name: Ulrich, Werner
name: Gros, Patrick
name: Teucher, Mike
name: Schmitt, Thomas
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 590

description: Climate change has a worldwide impact on biodiversity and ecosystem functions, in particular by causing shifts in species distributions and changes in species communities. Here, we analyse altitudinal range shifts of 30,604 lowland butterfly and burnet moth records from 119 species over the past seven decades across the federal state of Salzburg (northern Austria) spanning an altitudinal gradient of >2500 m. For each species, we compiled species-specific traits on their ecology, behaviour, and life-cycle. During the study period, the butterflies have shifted their average occurrence and also lower and upper occurrence limits >300 m uphill. This shift is particularly obvious for the last ten years. Habitat generalist and mobile species exhibited strongest and habitat specialist and sedentary species weakest shifts. Our results underline that the effects of climate change have a strong and currently increasing impact on the patterns of species distribution and local community composition. Hence, we confirm the observation that ubiquistic, mobile species with a broad ecological amplitude can cope better with environmental changes than specialist and sedentary species. Furthermore, the strong changes in land use in lowland areas might additionally enhanced this up-hill shift.
A Chapter on Maritime History: Shipping and Nautical Technology of Trade and Warfare in the Medieval Mediterranean, 11th–16th Century
Creators: name: Gertwagen, Ruthy
Publisher: name: Vorträge und Forschungen
Year: 2019

description: -
description: Vorträge und Forschungen, Bd. 83 (2016): Vorträge und Forschungen: Maritimes Mittelalter. Meere als Kommunikationsräume
Flexibility and function of distal substrate-binding tryptophans in the blue mussel β-mannanase MeMan5A and their role in hydrolysis and transglycosylation
Creators: name: Birgersson, Simon
name: Morrill, Johan
name: Stenström, Olof
name: Wiemann, Mathias
name: Weininger, Ulrich
name: Söderhjelm, Pär
name: Akke, Mikael
name: Stålbrand, Henrik
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 530

description: β-Mannanases hydrolyze β-mannans, important components of plant and microalgae cell walls. Retaining β-mannanases can also catalyze transglycosylation, forming new β-mannosidic bonds that are applicable for synthesis. This study focused on the blue mussel (Mytilus edulis) GH5_10 β-mannanase MeMan5A, which contains two semi-conserved tryptophans (W240 and W281) in the distal subsite +2 of its active site cleft. Variants of MeMan5A were generated by replacing one or both tryptophans with alanines. The substitutions reduced the enzyme’s catalytic efficiency (kcat/Km using galactomannan) by three-fold (W281A), five-fold (W240A), or 20-fold (W240A/W281A). Productive binding modes were analyzed by 18O labeling of hydrolysis products and mass spectrometry. Results show that the substitution of both tryptophans was required to shift away from the dominant binding mode of mannopentaose (spanning subsites −3 to +2), suggesting that both tryptophans contribute to glycan binding. NMR spectroscopy and molecular dynamics simulations were conducted to analyze protein flexibility and glycan binding. We suggest that W240 is rigid and contributes to +2 subsite mannosyl specificity, while W281 is flexible, which enables stacking interactions in the +2 subsite by loop movement to facilitate binding. The substitutions significantly reduced or eliminated transglycosylation with saccharides as glycosyl acceptors but had no significant effect on reactions with alcohols.
Michel Séfériades, Troie I. Materiaux pour l’étude des sociétés du Nord-Est Égéen au début du Bronze Ancien
Creators: name: Hiller, Stefan
Publisher: name: Bonner Jahrbücher
Year: 2019

description: -
description: Bonner Jahrbücher, Bd. 190.1990(1991): Bonner Jahrbücher
Information Geometry and Quantum Phase Transitions in the Dicke Model
Creators: name: Dey, Anshuman
name: Mahapatra, Subhash
name: Roy, Pratim
name: Sarkar, Tapobrata
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study information geometry of the Dicke model, in the thermodynamic limit. The scalar curvature $R$ of the Riemannian metric tensor induced on the parameter space of the model is calculated. We analyze this both with and without the rotating wave approximation, and show that the parameter manifold is smooth even at the phase transition, and that the scalar curvature is continuous across the phase boundary.
description: References and clarifications added. Final version to appear in Physical Review E
Wolfgang Schindler, Mythos und Wirklichkeit in der Antike
Creators: name: Lehmann, Stefan
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Wolfgang Schindler, Mythos und Wirklichkeit in der Antike. Gebr. Mann Verlag, Berlin 1988. Lizenzausgabe der Edition Leipzig. 292 Seiten, 146 Abbildungen, davon 104 Tafeln
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Parandania Stebbing 1899
Creators: name: Berge, Jørgen
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Stegocephalidae
Parandania

description: Parandania Stebbing Parandania Stebbing, 1899: 206. Type species. Andania boecki Stebbing, 1888. Monotypic genus. Species found in the area. Parandania boecki (Stebbing, 1888). Material examined. AM P50233, 121 specimens, 16°37.81'S 146°23.08'E, 1000 m, east of Flynn Reef, far north Queensland, Australia. Remarks. Marine cosmopolitan species, 300–2200 m.
description: Published as part of Jørgen Berge, 2003, Stegocephalidae (Crustacea: Amphipoda) from Australia and New Zealand, With Descriptions of Eight New Species, pp. 85-112 in Records of the Australian Museum 55 on page 100
description: {"references": ["Stebbing, T. R. R., 1899. Revision of Amphipoda. Annals and Magazine of Natural History, Series 7, 3: 1 - 350.", "Stebbing, T. R. R., 1888. Report on the Amphipoda collected by H. M. S. Challenger during the years 1873 - 76. Report on the Scientific Results of the Voyage of H. M. S. Challenger During the Years 1873 - 1876. Zoology 29 (xxiv): 1 - 1737."]}
Towards a better future for biodiversity and people : modelling Nature Futures
Creators: name: Kim, HyeJin
name: Pereira, Henrique M.
name: [Und Viele Weitere]
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2023
Subjects: subject: 570

description: The Nature Futures Framework (NFF) is a heuristic tool for co-creating positive futures for nature and people. It seeks to open up a diversity of futures through mainly three value perspectives on nature – Nature for Nature, Nature for Society, and Nature as Culture. This paper describes how the NFF can be applied in modelling to support decision-making. First, we describe key considerations for the NFF in developing qualitative and quantitative scenarios: i) multiple value perspectives on nature as a state space where pathways improving nature toward a frontier can be represented, ii) mutually reinforcing key feedbacks of social-ecological systems that are important for nature conservation and human wellbeing, iii) indicators of multiple knowledge systems describing the evolution of complex social-ecological dynamics. We then present three approaches to modelling Nature Futures scenarios in the review, screening, and design phases of policy processes. This paper seeks to facilitate the integration of relational values of nature in models and strengthen modelled linkages across biodiversity, nature’s contributions to people, and quality of life.
Jet and Torus Orientations in High Redshift Radio Galaxies
Creators: name: Drouart, G.
name: De Breuck, C.
name: Vernet, J.
name: Laing, R. A.
name: Seymour, N.
name: Stern, D.
name: Haas, M.
name: Pier, E. A.
name: Rocca-Volmerange, B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the relative orientation of radio jets and dusty tori surrounding the AGN in powerful radio galaxies at z > 1. The radio core dominance R = P(20 GHz) /P(500 MHz) serves as an orientation indicator, measuring the ratio between the anisotropic Doppler-beamed core extended core emission and the isotropic lobe emission. Assuming a fixed cylindrical geometry for the hot, dusty torus, we derive its inclination i by fitting optically-thick radiative transfer models to spectral energy distributions obtained with the Spitzer Space Telescope. We find a highly significant anti-correlation (p < 0.0001) between R and i in our sample of 35 type 2 AGN combined with a sample of 18 z = 1 3CR sources containing both type 1 and 2 AGN. This analysis provides observational evidence both for the Unified scheme of AGN and for the common assumption that radio jets are in general perpendicular to the plane of the torus. The use of inclinations derived from mid-infrared photometry breaks several degeneracies which have been problematic in earlier analyses. We illustrate this by deriving the core Lorentz factor Gamma from the R-i anti-correlation, finding Gamma > 1.3.
description: 18 pages, 12 figures, 6 tables
… alle Sonntage große Cour … Die Gesellschaftsräume in Schloss Wilhelmshöhe
Creators: name: Brunckhorst, Friedl
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2019

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 47, Nr. 1 (2006): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Bound states in the one-dimensional two-particle Hubbard model with an impurity
Creators: name: Zhang, J. M.
name: Braak, Daniel
name: Kollar, Marcus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate bound states in the one-dimensional two-particle Bose-Hubbard model with an attractive ($V> 0$) impurity potential. This is a one-dimensional, discrete analogy of the hydrogen negative ion H$^-$ problem. There are several different types of bound states in this system, each of which appears in a specific region. For given $V$, there exists a (positive) critical value $U_{c1}$ of $U$, below which the ground state is a bound state. Interestingly, close to the critical value ($U\lesssim U_{c1}$), the ground state can be described by the Chandrasekhar-type variational wave function, which was initially proposed for H$^-$. For $U>U_{c1}$, the ground state is no longer a bound state. However, there exists a second (larger) critical value $U_{c2}$ of $U$, above which a molecule-type bound state is established and stabilized by the repulsion. We have also tried to solve for the eigenstates of the model using the Bethe ansatz. The model possesses a global $\Zz_2$-symmetry (parity) which allows classification of all eigenstates into even and odd ones. It is found that all states with odd-parity have the Bethe form, but none of the states in the even-parity sector. This allows us to identify analytically two odd-parity bound states, which appear in the parameter regions $-2V
description: 18 pages, 18 figures
The Single Top Quark Physics
Creators: name: Boos, E.
name: Dudko, L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The single top quark production has an electroweak nature and provides an additional to the top pair production source of the top quarks. The processes involving single top have unique properties, they are very interesting from both theoretical and experimental view points. Short review of the single top quark production processes is given in the paper.
description: Invited Review for International Journal of Modern Physics A. 20 pages, 14 figures, 4 tables
Growing supermassive black holes: sub-grid modelling and intermediate-scale processes
Creators: name: Hobbs, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The sheer range of scales in the Universe makes it impossible to model all at once. It is necessary, therefore, when conducting numerical experiments, that we employ sub-resolution prescriptions that can represent the scales we are unable to model directly. In this article we present a prescription for black hole growth that incorporates a different accretion regime from the standard approach used in the literature, and discuss the results of dedicated simulations of intermediate processes between small-scale accretion flows and large-scale cosmological volumes that can strongly enhance the accretion rate onto the black hole at the centre of a galaxy.
description: 8 pages, 3 figures. Published in the proceedings of 'The Central Kiloparsec in Galactic Nuclei', Astronomy at High Angular Resolution, Cologne, Germany, August 2011
Noise Properties of Coherent Perfect Absorbers and Critically-coupled Resonators
Creators: name: Chong, Y. D.
name: Cao, Hui
name: Stone, A. Douglas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The performance of a coherent perfect absorber (time-reversed laser) is limited by quantum and thermal noise. At zero temperature, the quantum shot noise dominates the signal for frequencies close to the resonance frequency, and both vanish exactly at the resonance frequency. We compute the sensitivity of the absorbing cavity as a background-free detector, limited by finite signal or detector bandwidth.
description: 6 pages, 3 figures
On the algorithmic behaviour of complex physical systems
Creators: name: Pop, D. A.
name: Mocanu, G. M.
name: Arghir, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Starting from the idea that the underlying mechanisms driving the observable processes in nature are algorithmic, we exemplify this in two ways: nature works as a computing machine and thus the processes running on it optimize themselves in an intrinsic manner so as to save time. As a first example we will place the empirical analysis of oxidation in the context of algorithm complexity analysis. Second, we will show that deformations suffered by a shape-memory alloy may be produced by nature showing a LIFO (Last In First Out) behaviour.
description: version very similar to the published one
No Existence of Black Holes at LHC Due to Minimal Length in Quantum Gravity
Creators: name: Ali, Ahmed Farag
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the impact of the Generalized Uncertainty Principle (GUP), proposed by some approaches to quantum gravity such as String Theory and Doubly Special Relativity Theories (DSR) on the production of mini black holes, and show that the minimum black hole mass is formed at energies higher than the energy scales of LHC which possibly agrees with the recent experimental results of LHC [arXiv:1012.3375, arXiv:1206.5663] .
description: 13 pages, no figures, references added
Jitter radiation model of the Crab gamma ray flares
Creators: name: Teraki, Yuto
name: Takahara, Fumio
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The gamma ray flares of the Crab nebula detected by Fermi and AGILE satellites challenge our understanding of physics of pulsars and their nebulae. The central problem is that the peak energy of the flares exceeds the maximum energy E_{\mathrm{c}} determined by synchrotron radiation loss. However, when there exist turbulent magnetic fields with scales λ_{\mathrm{B}} smaller than 2πmc^2/eB, jitter radiation can emit photons with energy higher than E_{\mathrm{c}}. The scale required for the Crab flares is about two orders of magnitude less than the wavelength of the striped wind. We discuss the model in which the flares are triggered by plunging of the high density blobs into the termination shock. The observed hard spectral shape may be explained by jitter mechanism. We make three observational predictions: firstly the polarization degree will become lower in flares, secondly, no counterpart will be seen in TeV-PeV range, and thirdly the flare spectrum will not be harder than νF_ν\propto ν^1.
description: 17pages, 3 figures, accepted for publication in ApJ
P2P Appliance Calculation Method For Trust between Nodes
Creators: name: Medic, Adis
name: Golubovic, Adis
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Modern ways of communications, such as in a web services environment, also influences trust relationships between organisations. This concept of web-based (way towards semantic web services) trust is new and has as yet not been resolved. We hope that some of the trust properties mentioned above can be successfully employed to improve the understanding of trust between machines. So, trust is a vital ingredient of any successful interaction between individuals, among organizations and/or in society at large. In this paper, we suggested a trust model using fuzzy logic in semantic network of nodes. Trust is an aggregation of consensus given a set of past interaction among nodes (semantic network based on machines, agents etc.). We applied our suggested model to semantic networks in order to show how trust mechanisms are involved in communicating algorithm to choose the proper path from source to destination. Authors use the terms untrust and distrust as synonyms for the condition opposite to the trust.
Presymplectic high order maximum principle
Creators: name: Barbero-Liñán, M.
name: Muñoz-Lecanda, M. C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 49E25, 49J15, 70H05, 70H50, 93.40

description: Pontryagin's Maximum Principle is an outstanding result for solving optimal control problems by means of optimizing a specific function on some particular variables, the so called controls. However, this is not always enough for solving all these problems. A high order maximum principle (Krener, 1977) must be used in order to obtain more necessary conditions for optimality. These new conditions determine candidates to be optimal controls for a wider range of optimal control problems. Here, we focus on control-affine systems. Krener's high order perturbations are redefined following the notions introduced in Aguilar-Lewis (2008). A weaker version of Krener's high order maximum principle is stated in the framework of presymplectic geometry. As a result, the presymplectic constraint algorithm in the sense of Gotay-Nester-Hinds (1979) can be used. We establish the connections between the presymplectic constraint algorithm and the candidates to be optimal curves obtained from the necessary conditions in Krener's high order maximum principle. In this paper we obtain weaker geometric necessary conditions for optimality of abnormal solutions than the ones in Krener (1977) and the ones in the weak high order maximum principle. These new necessary conditions are more useful, computationally speaking, for finding curves candidate to be optimal. The theory is supported by describing specifically some of the above-mentioned conditions for some mechanical control systems.
description: 13 pages. Old paper, submitted for archival purposes
Multi-state Model Based Identification of Cryptic Allosteric Sites on Human Serotonin Transporter
Creators: name: Tu, Gao
name: Xu, Binbin
name: Luo, Ding
name: Liu, Zerong
name: Chen, Gang
name: Xue, Weiwei
Publisher: name: Zenodo
Year: 2023

description: The MD trajectories of multi-state model of SERT in outward-open (OOholo), outward-occluded (OCholo) and inward-open (IOholo) were provided for educational and academic use only.
D1.6 Framework Alignment and Theory Update (ed. 1)
Creators: name: PoliRural
Publisher: name: Zenodo
Year: 2022
Subjects: Rural Development
Innovation
Foresight
Text Mining
System Dynamics

description: The original framework provided a general direction for the project while giving pilots and subject matter experts enough flexibility to tweak individual tasks as they see fit. This approach ensures that PoliRural develops according to real-life needs and best practices rather than some hard and fast rules determined at the outset.
 To check whether the framework is still fit for purpose, periodic revisions are conducted as part of T1.3 Framework Alignment and Theory Update. T1.3 acts as a tool for retrospective analysis that compares original ideas with what actually happened in different project stages. Specifically, it captures changes to the initial framework by taking stock of recent activities performed by the wider PoliRural consortium, with a special focus on pilot work. As revisions take place, early ideas of what might work are replaced with practical knowledge of what really worked (or didn’t) and why.
 Pilot activities and their allied tasks in M1-M12 were found to be broadly in line with the high-level approach outlined in the work plan. Needs gathering (T4.3) identified issues for policy matching (T4.4) which in turn provided inputs to policy evaluation (T4.5). Foresight planning (T5.2), SD model building (T5.1) and Semex development (T2.3) all have been running in parallel to support pilot work within WP4. However, at task-level, important differences were observed in all of the above except T4.4 and T4.5. Some differences were caused by the addition of new concepts and methods, some by the fact that elements which had been initially foreseen by the framework weren’t implemented, for technical and other reasons.
 This deliverable is the first in a series of three updates to come out of T1.3. The entire series is primarily intended for “internal consumption” i.e. project partners involved in the delivery of an online course and accompanying webinars (D7.7, D7.8, D7.9, D.10). The aim is to create learning content that is based on best practices and lessons learned. That said, other beneficiaries of T1.3 include PoliRural pilots and stakeholders outside the consortium circle who may wish to follow the PoliRural approach in a new setting. An updated framework will come in handy as it will allow interested parties to ground their activities in tried and trusted methodologies rather than some untested assumptions that may be plausible in theory but not in practice.
Supplementary information containing Text S1, Figs. S1 and S2, and Tables S1-S5 from Consumer regulation of the carbon cycle in coastal wetland ecosystems
Creators: name: He, Qiang
name: Li, Haoran
name: Xu, Changlin
name: Sun, Qingyan
name: Bertness, Mark D.
name: Fang, Changming
name: Li, Bo
name: Silliman, Brian R.
Publisher: name: The Royal Society
Year: 2020

description: Despite escalating anthropogenic alteration of food webs, how the carbon cycle in ecosystems is regulated by food web processes remains poorly understood. We quantitatively synthesize the effects of consumers (herbivores, omnivores and carnivores) on the carbon cycle of coastal wetland ecosystems, ‘blue carbon’ ecosystems that store the greatest amount of carbon per unit area among all ecosystems. Our results reveal that consumers strongly affect many processes of the carbon cycle. Herbivores, for example, generally reduce carbon absorption and carbon stocks (e.g. aboveground plant carbon by 53% and aboveground net primary production by 23%) but may promote some carbon emission processes (e.g. litter decomposition by 32%). The average strengths of these effects are comparable with, or even times higher than, changes driven by temperature, precipitation, nitrogen input, CO2 concentration, and plant invasions. Furthermore, consumer effects appear to be stronger on aboveground than belowground carbon processes and vary markedly with trophic level, body size, thermal regulation strategy and feeding type. Despite important knowledge gaps, our results highlight the powerful impacts of consumers on the carbon cycle and call for the incorporation of consumer control into Earth system models that predict anthropogenic climate change and into management strategies of Earth's carbon stocks.This article is part of the theme issue ‘Integrative research perspectives on marine conservation’.
title: Advanced Importance Sampling Techniques for Virtual Ray Lights
Creators: name: Oppitz, Michael
Publisher: name: TU Wien
Year: 2023
Subjects: subject: global illumination
subject: virtual point lights
subject: virtual ray lights
subject: ray tracing

description: This thesis provides new importance sampling techniques for Virtual Ray Lights forRendering Scenes in Participating Media. We will discuss the foundations of rendering scenes with participating media first, to get an understanding of this topic. Furthermore, we will provide an overview of different approaches that can be used for the rendering of these scenes. Virtual Ray Lights is an algorithm that traces light rays from the light source through the scene, which are then evaluated individually for each camera ray. Importance sampling is used on both rays to get a samples for each ray for which their contribution can be calculated. As a solid understanding of the original algorithm is needed to understand the newapproaches that we introduce, a focus is laid on explaining the mathematical foundations of the approach. We highlight the shortcomings that we found for rendering anisotropic participating media and introduce our solutions to solve them more efficiently. We provide two different solutions to the problem that we evaluated in the originalalgorithm. Our solutions are explained mathematically, via pseudo code and are evaluated with a multitude of tests. The goal of this thesis is to provide new, simple, robust and fast solutions to rendering scenes with anisotropic participating media.
Level Statistics of SU(3)-SU(3)* Transitional Region
Creators: name: Jafarizadeh, M. A.
name: Fouladi, N.
name: Sabri, H.
name: gavifekr, P. Hossein nezhade
name: Ranjbar, Z.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The level statistics of SU(3)-SU(3)* transitional region of IBM is described by the nearest neighbor spacing distribution statistics. The energy levels are determined by using the SO(6)representation of eigenstates. By employing the MLE technique, the parameter of Abul-Magd distribution is estimated where suggest less regular dynamics for transitional region in compare to dynamical symmetry limits. Also, the O(6)dynamical symmetry which is known as the critical point of this transitional region, describes a deviation to more regular dynamics.
description: 13 pags, 2 figurese. arXiv admin note: substantial text overlap with arXiv:1207.2337, arXiv:1202.6252
Gravitational Anderson Localization
Creators: name: Rothstein, Ira Z.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a higher dimensional model where gravity is bound to a brane due to Anderson localization. The extra dimensions are taken to be a disordered crystal of branes, with randomly distributed tensions of order the fundamental scale. Such geometries bind the graviton and thus allow for arbitrarily large extra dimensions even when the curvature is small. Thus this model is quite distinct from that of Randall and Sundrum where localization is a consequence of curvature effects in the bulk. The hierarchy problem can be solved by having the standard model brane live a distance away from the brane on which the graviton is localized. The statistical properties of the system are worked out and it is shown that the scenario leads to a continuum of four dimensional theories with differing strengths of gravitational interactions. We live on one particular brane whose gravitational constant is G_N.
description: To appear in Physical Review Letters
Additional file 1 of Metabolic engineering of Yarrowia lipolytica for thermoresistance and enhanced erythritol productivity
Creators: name: Wang, Nan
name: Chi, Ping
name: Zou, Yawen
name: Xu, Yirong
name: Xu, Shuo
name: Bilal, Muhammad
name: Fickers, Patrick
name: Cheng, Hairong
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Marine Biology

description: Additional file 1.
Superfluid drag of two-species Bose-Einstein condensates in optical lattices
Creators: name: Hofer, Patrick P.
name: Bruder, C.
name: Stojanovic, Vladimir M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study two-species Bose-Einstein condensates in quasi two-dimensional optical lattices of varying geometry and potential depth. Based on the numerically exact Bloch and Wannier functions obtained using the plane-wave expansion method, we quantify the drag (entrainment coupling) between the condensate components. This drag originates from the (short range) inter-species interaction and increases with the kinetic energy. As a result of the interplay between interaction and kinetic energy effects, the superfluid-drag coefficient shows a non-monotonic dependence on the lattice depth. To make contact with future experiments, we quantitatively investigate the drag for mass ratios corresponding to relevant atomic species.
description: 6 pages, 4 figures. Accepted in its original form but minor changes have been done
On the structure of positive maps II: low dimensional matrix algebras
Creators: name: Majewski, Wladyslaw A.
name: Tylec, Tomasz I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: 47B60, 47B65

description: We use a new idea that emerged in the examination of exposed positive maps between matrix algebras to investigate in more detail the difference between positive maps on $M_2(C)$ and $M_3(C)$. Our main tool stems from classical Grothendieck theorem on tensor product of Banach spaces and is an older and more general version of Choi-Jamiolkowski isomorphism between positive maps and block positive Choi matrices. It takes into account the correct topology on the latter set that is induced by the uniform topology on positive maps. In this setting we show that in $M_2(C)$ case a large class of nice positive maps can be generated from the small set of maps represented by self-adjoint unitaries, $2 P_x$ with $x$ maximally entangled vector and $p\otimes 1$ with $p$ rank 1 projector. We show why this construction fails in $M_3(C)$ case. There are also similarities. In both $M_2(C)$ and $M_3(C)$ cases any unital positive map represented by self-adjoint unitary is unitarily equivalent to the transposition map. Consequently we obtain a large family of exposed maps. We also investigate a convex structure of the Choi map, the first example of non-decomposable map. As a result the nature of the Choi map will be explained. This gives an information on the origin of appearance of non-decomposable maps on $M_3(C)$.
description: Lemma 5 (in previous version, false) is removed. We would be very grateful for any remark