cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hidden-sector current-current correlators in holographic gauge mediation
Creators: name: McGuirk, Paul
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss gauge mediation in the case where the hidden sector is strongly coupled but, via the gauge-gravity correspondence, admits a weakly-coupled description in terms of a warped higher-dimensional spacetime. In this framework, known as holographic gauge mediation, the visible-sector gauge group is realized in the gravitational description by probe D-branes and the non-supersymmetric state by normalizable perturbations to the geometry. Using the formalism of general gauge mediation, supersymmetry-breaking soft terms in the visible sector can be related to the two-point functions of the hidden-sector current superfield that couples to the visible-sector gauge group. Such correlation functions cannot be directly calculated in the strongly coupled field theory but can be determined using the gauge-gravity correspondence and holographic renormalization. We explore this procedure by considering a toy geometry where such two-point functions can be explicitly calculated. Unlike previous implementations of holographic gauge mediation where sermon masses were not calculable directly in a purely holographic framework, such terms are readily obtained via these correlators, while (due to the simplicity of the geometry considered) the visible sector gauginos remain massless to leading order in the visible-sector coupling.
description: 46 pages. Typographical errors corrected and clarifications added. Version to appear in PRD
Measurement of the inclusive production cross sections for forward jets and for dijet events with one forward and one central jet in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The inclusive production cross sections for forward jets, as well for jets in dijet events with at least one jet emitted at central and the other at forward pseudorapidities, are measured in the range of transverse momenta pt = 35-150 GeV/c in proton-proton collisions at sqrt(s) = 7 TeV by the CMS experiment at the LHC. Forward jets are measured within pseudorapidities 3.2
description: Submitted to the Journal of High Energy Physics
On the Commuting variety of a reductive Lie algebra and other related varieties
Creators: name: Charbonnel, Jean-Yves
name: Zaiter, Mouchira
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: The nilpotent cone of a reductive Lie algebra has a desingularization given by thecotangent bundle of the flag variety. Analogously, the nullcone of a cartesianpower of the algebra has a desingularization given by a vector bundle over theflag variety. As for the nullcone, the subvariety of elements whose componentsare in a same Borel subalgebra, has a desingularization given by a vector bundle overthe flag variety. In this note, some properties of these varieties are given. Forthe study of the commuting variety, the analogous variety to the flag variety isthe closure in the Grassmannian of the set of Cartan subalgebras. So someproperties of this variety are given. In particular, it is smooth in codimension $1$.We introduce the generalized isospectral commuting varieties and give some properties.Furthermore, desingularizations of these varieties are given by fiber bundles over adesingularization of the closure in the grassmannian of the set of Cartan subalgebrascontained in a given Borel subalgebra.
description: Final version
Statistical pairwise interaction model of stock market
Creators: name: Bury, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Financial markets are a classical example of complex systems as they comprise many interacting stocks. As such, we can obtain a surprisingly good description of their structure by making the rough simplification of binary daily returns. Spin glass models have been applied and gave some valuable results but at the price of restrictive assumptions on the market dynamics or others are agent-based models with rules designed in order to recover some empirical behaviours. Here we show that the pairwise model is actually a statistically consistent model with observed first and second moments of the stocks orientation without making such restrictive assumptions. This is done with an approach based only on empirical data of price returns. Our data analysis of six major indices suggests that the actual interaction structure may be thought as an Ising model on a complex network with interaction strengths scaling as the inverse of the system size. This has potentially important implications since many properties of such a model are already known and some techniques of the spin glass theory can be straightforwardly applied. Typical behaviours, as multiple equilibria or metastable states, different characteristic time scales, spatial patterns, order-disorder, could find an explanation in this picture.
description: 11 pages, 8 figures
Пам’ятки перших століть нашої ери біля с.Козаровичі
Creators: name: Е. В., Максимов
name: Орлов, Руслан
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 430101
subject: Archaeological science

description: Максимов Є.В., Орлов Р.С. Пам’ятки перших століть нашої ери біля с.Козаровичі. Археологічні дослідження на Україні в 1969р. к., 1972, вип.4, с.229-236.Sights of the first centuries of our era near the village of Kozarovychi
title: Free floating fat in bursae and tendon sheaths, where does it come from?
Creators: name: Cueva, Maria
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Trauma
subject: Education and training
subject: Imaging sequences
subject: eLearning
subject: MR
subject: CT
subject: Musculoskeletal soft tissue
subject: Musculoskeletal joint

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To provide a basic understanding of how fat-fluid levels appear in bursae and tendon sheaths. To describe this radiological finding in three different articular joint. To consider differential...
title: DEPRECATED: ELECTRICITY USE IN THE FARM DAIRY
Creators: name: Bowes, Robert Christopher
Publisher: name: University of Plymouth
Year: 1989

description: Dairy farmers suffered substantially increased energy bills during the 1970's, at a time of herd expansion and modernisation of equipment to allow bulk milk refrigeration and storage on the farm. Little was known of the levels of electricity use in the dairy farming sector, but extrapolations had suggested a figure of 300 to over 400 kWh/cow/annum. Farmers were requesting quantitative estimates for the potential of conservation equipment, particularly plate heat exchangers and heat recovery units. An energy audit of dairy farms in South Devon is described. Over a period of two years, data were collected relating to energy use by each of the major components of a milking parlour and dairy, for a range of parlour sizes, levels of production and the ambient conditions. Analysis revealed the factors most influencing variations in energy use. An equation was developed to describe the energy use by a bulk milk tank, given the level of production and the ambient temperature. The bulk tank accounted for some 40% of the total energy used. The bulk tank has been studied in detail. The stages of heat transfer from the milk to the chilled water and the resulting effects upon the ice bank have been modelled. Laboratory investigations were carried out to determine some parameters empirically. The model's limits, sensitivity and validation are reported. Typical levels and ranges of energy use are suggested. A mean of approximately 250 kWh/cow/annum resulted from the audit, but 200 kWh/cow/annum was achieved by the most economical of farms without resort to conservation equipment, and this level is proposed as a target for the conscientious farmer. The factors affecting energy use in the farm dairy are identified as political, environmental, technical and managerial and these are discussed. The farmer's influence has to be directed mainly at the last of these categories. Investment in energy conservation equipment should not be considered until consumption is down to the proposed target level.
Alignment-free phylogenetic reconstruction: Sample complexity via a branching process analysis
Creators: name: Daskalakis, Constantinos
name: Roch, Sebastien
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Data Structures and Algorithms (cs.DS)
subject: Statistics Theory (math.ST)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We present an efficient phylogenetic reconstruction algorithm allowing insertions and deletions which provably achieves a sequence-length requirement (or sample complexity) growing polynomially in the number of taxa. Our algorithm is distance-based, that is, it relies on pairwise sequence comparisons. More importantly, our approach largely bypasses the difficult problem of multiple sequence alignment.
description: Published in at http://dx.doi.org/10.1214/12-AAP852 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Suprasellar cistern beyond the adenomas – A focused review
Creators: name: Oliveira, Thais
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Neuroradiology brain
subject: CNS

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To demonstrate, through magnetic resonance imaging (MRI), the main intracranial tumors and pathologies that affect the suprasellar cistern, highlighting the principal...
title: DEPRECATED: EFFECT OF OWNERSHIP STRUCTURE ON FIRM STOCK RETURNS AND FINANCIAL PERFORMANCE:EVIDENCE FROM THE EGYPTIAN STOCK MARKET
Creators: name: ElGhouti, Amal
Publisher: name: Plymouth University
Year: 2015
Subjects: Ownership Structure
Financial Performance
Institutional Ownership
Egyptian Stock Exchange

description: The effect of institutional ownership and ownership concentration on the firm’s stock returns and volatility and financial performance has long been an interesting issue in the international business literature. A lot of debate has been going on regarding the relationship between institutional ownership, ownership concentration, returns, volatility and financial performance. The objective of this thesis is to study the effect of institutional ownership and ownership concentration on firm stock returns and financial performance of the listed companies in the Egyptian Stock Exchange. For this purpose, panel data model is employed. The results from the analysis show that institutional ownership has no effect on ex post stock returns as well as ex ante stock returns. On the contrary, institutional ownership represented by top management and individuals have a negative and significant effect on stock volatility, while employee associations have a positive and significant effect. No significant effect is detected on ex ante risk except for employee associations that have negative and significant effect on ex ante risk. In addition, the results show that institutional ownership has no effect on stock liquidity except employee associations and individuals that have a negative and significant effect on stock liquidity. Finally, the results show that institutional ownership represented by companies, holdings and individuals have negative effect on financial performance represented by ROA and ROE. Also, institutional ownership has no effect on debt to equity ratio except banks that have negative and significant effect and employee associations that have positive and significant effect. The results also show that ownership concentration has no effect on ex post stock returns but it has a positive effect on ex ante stock returns. Also, it has no effect on ex post risk but it has a positive effect on ex ante risk. On the other hand, ownership concentration has a negative and significant effect on stock liquidity. Finally, the results show that ownership concentration has no effect on either financial performance represented by ROA and ROE or debt to equity ratio. As such, the thesis makes an important contribution to the literature, since it tests the impact of ownership type and concentration on ex ante returns and volatility of stocks in Egypt, an emerging country that has been ignored in literature. Also, the analysis extends the literature by decomposing institutional ownership to several types. Moreover, it adds two components of volatility, volatility clustering and persistence, testing their effect on ex post and ex ante risk, which is not dealt by previous studies.
Entanglement spectra of the q-deformed Affleck-Kennedy-Lieb-Tasaki model and matrix product states
Creators: name: Santos, Raul A.
name: Paraan, Francis N. C.
name: Korepin, Vladimir E.
name: Klümper, Andreas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We exactly calculate the reduced density matrix of matrix product states (MPS). Our compact result enables one to perform analytic studies of entanglement in MPS. In particular, we consider the MPS ground states of two anisotropic spin chains. One is a q-deformed Affleck-Kennedy-Lieb-Tasaki (AKLT) model and the other is a general spin-1 quantum antiferromagnet with nearest-neighbor interactions. Our analysis shows how anisotropy affects entanglement on different continuous parameter manifolds. We also construct an effective boundary spin model that describes a block of spins in the ground state of the q-deformed AKLT Hamiltonian. The temperature of this effective model is given in terms of the deformation parameter q.
description: 5 pages, 4 PDF figures; v2: 6 pages, 4 PDF figures. Introduction and conclusions expanded
title: Renal sinus lesions: A diagnostic imaging approach
Creators: name: Gonzalo Carballés, Marta
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Urinary Tract / Bladder
subject: Kidney
subject: Abdomen
subject: MR
subject: CT
subject: Ultrasound
subject: Diagnostic procedure
subject: Pathology
subject: Tissue characterisation

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To review the anatomy of the renal sinus and its contents. To make an approach to the various imaging modality techniques for the evaluation of this area. To illustrate through imaging cases the radiological findings of the most common and uncommon...
Quantum criticality with multiple dynamics
Creators: name: Meng, Tobias
name: Rosch, Achim
name: Garst, Markus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum critical systems with multiple dynamics possess not only one but several time scales, tau_i ~ xi^(z_i), which diverge with the correlation length xi. We investigate how scaling predictions are modified for the simplest case of multiple dynamics characterized by two dynamical critical exponents, z_> and z_/(nu (z_>-z_
description: 8 pages including supplementary material. Minor changes as compared to the previous version
title: DEPRECATED: IMBEDDED INTEGRATION RULES AND THEIR APPLICATIONS IN BAYESIAN ANALYSIS
Creators: name: DELLAPORTAS, PETROS
Publisher: name: University of Plymouth
Year: 1990

description: This thesis deals with the development and application of numerical integration techniques for use in Bayesian Statistics. In particular, it describes how imbedded sequences of positive interpolatory integration rules (PIIR's) obtained from Gauss-Hermite product rules can extend the applicability and efficiency of currently available numerical methods. The numerical strategy suggested by Naylor and Smith (1982) is reviewed, criticised and applied to some examples with real and artificial data. The performance of this strategy is assessed from the viewpoint of 3 criteria: reliability, efficiency and accuracy. The imbedded sequences of PIIR’s are introduced as an alternative and an extension to the above strategy for two major reasons. Firstly, they provide a rich class of spatially ditributed rules which are particularly useful in high dimensions. Secondly, they provide a way of producing more efficient integration strategies by enabling approximations to be updated sequentially through the addition of new nodes at each step rather than through changing to a completely new set of nodes. Finally, the Improvement in the reliability and efficiency achieved by the adaption of an integration strategy based on PIIR's is demonstrated with various illustrative examples. Moreover, it is directly compared with the Gibbs sampling approach introduced recently by Gelfand and Smith (1988).
Non-traditional security in the post-Cold War era : implications of a broadened security agenda for the militaries of Canada and Australia
Creators: name: Smythe, Leanne Jennifer
Publisher: name: University of British Columbia
Year: 2013

description: The growing salience of non-traditional security concerns for the post-Cold War national security of western states has led this author to ask: What implications does the post-Cold War proliferation of “security” threats, and therefore, the securitization of non-traditional challenges, hold for the primary security institution of the state, namely, the military? Using the research design of a heuristic case study, this project seeks to answer this question through the methodology of process tracing, relying on document analysis and semi-structured elite interviews for data. This dissertation first argues that the category of “non-traditional” security concerns can be separated into three “types”: (1) Fragile and Failing States, (2) Global Terrorism, and (3) Transnational Political Challenges. Using this framework, the dissertation then examines two cases, which are the national security strategies of Canada and Australia throughout the post-Cold War Era. For each case, the impact of the securitization of non-traditional security concerns is analyzed with relation to defence policy, military doctrine, force structure, and operational outputs. It concludes that both militaries have been significantly impacted by the securitization of non-traditional security concerns during the post-Cold War Era, although the securitization processes and policy outcomes have been different in each case.
Residual Entropy of the Mott Insulator with No Symmetry Broken
Creators: name: Ohkawa, Fusayoshi J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The half-filled ground state of the Hubbard model on the hypercubic lattice in D dimensions is studied by the Kondo-lattice theory, which is none other than the 1/D expansion theory, but within the constrained Hilbert subspace where no symmetry is allowed to be broken. A gap can open in the single-particle excitation spectrum if and only if the residual entropy or entropy at T=+0 K is nonzero. The Mott insulator with no symmetry broken, if it is possible, is characterized by nonzero residual entropy or nonzero entropy at T=+0 K. This conclusion is consistent with Brinkman and Rice's theory and the dynamical mean-field theory. According to the well-known argument based on the Bethe-ansatz solution, on the other hand, the half-filled ground state in one dimension is the Mott insulator although its residual entropy per unit cell is vanishing in the thermodynamic limit. Two possible explanations are given for the contradiction between the present paper and the well-known argument.
description: 27 pages
Viscosity Solutions for a System of PDEs and Optimal Switching
Creators: name: Asri, Brahim El
name: Fakhouri, Imade
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper, we study the $m$-states optimal switching problem in finite horizon, when the switching cost functions are arbitrary and can be positive or negative. This has an economic incentive in terms of central evaluation in cases where such organizations or state grants or financial assistance to power plants that promotes green energy in their production activity or what uses less polluting modes in their production. We show existence for optimal strategy via a verification theorem then we show existence and uniqueness of the value processes by using an approximation scheme. In the markovian framework we show that the value processes can be characterized in terms of deterministic continuous functions of the state of the process. Those latter functions are the unique viscosity solutions for a system of $m$ variational partial differential inequalities with inter-connected obstacles.
description: 26 pages. arXiv admin note: substantial text overlap with arXiv:1102.1256, arXiv:0805.1306, arXiv:0904.0707, arXiv:1202.1108, and arXiv:0707.2663 and arXiv:1104.2689 by other authors. IMA Journal of Mathematical Control and Information (2016)
title: DEPRECATED: PNEUMATIC HYDROPOWER SYSTEMS
Creators: name: PARMEE, IAN CHRISTOPHER
Publisher: name: University of Plymouth
Year: 1990

description: The following thesis investigates the performance and economics of a Pneumatic Water Engine capable of extracting energy from differential heads of water in the two to three metre range. Initial concepts are discussed and a system configuration is physically modelled at a laboratory scale. Outline designs using a variety of materials are developed and these provide a basis for the estimation of a probable capital cost using standard Civil Engineering methods. The proposed system is mathematically modelled using a lumped mass approach to the complex hydrodynamics. The resultant differential equations are solved by means of a variable Runge Kutta numerical analysis. The model includes the thermodynamic aspects of the system's compressible airflow. A computer program has been developed from the mathematical model and Is utilized in a series of parametric studies. An economic assessment based upon both the average power output achieved during the parametric studies and the probable capital cost of the system is presented, together with an estimate of the cost per kilowatt-hour of the electricity produced. This assessment takes into account maintenance costs, expected value of the energy produced and the possible effects of both Water Abstraction Charges and Local Authority Rating. In addition to the parametric studies a final, more rigorous optimization of the system involving a number of the many interacting variables has been undertaken. This optimization is achieved via Cumulative Evolutionary Design techniques involving the use of Genetic Algorithms. An optimal design of the chamber shape is achieved in the same manner.
Pattern avoidance in labelled trees
Creators: name: Dotsenko, Vladimir
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 05C05 (Primary) 05A15, 05A16, 18D50 (Secondary)

description: We discuss a new notion of pattern avoidance motivated by the operad theory: pattern avoidance in planar labelled trees. It is a generalisation of various types of consecutive pattern avoidance studied before: consecutive patterns in words, permutations, coloured permutations etc. The notion of Wilf equivalence for patterns in permutations admits a straightforward generalisation for (sets of) tree patterns; we describe classes for trees with small numbers of leaves, and give several bijections between trees avoiding pattern sets from the same class. We also explain a few general results for tree pattern avoidance, both for the exact and the asymptotic enumeration.
description: 27 pages, corrected various misprints, added an appendix explaining the operadic context
Determinants of Macroinvertebrate Diversity in Karst Springs
Creators: name: Harkness, Hannah`
Publisher: name: ProQuest
Year: 2023
Subjects: classificationCode: 3103
subject: Ecology
subject: FOS: Biological sciences
classificationCode: 310305
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: The amphipod Gammarus minus is a dominant member of karst springs. It suffers from size-selective predation from sculpin predators; individuals are smaller where sculpins are present. This study aims to identify the relationship between G. minus size and the diversity of benthic macroinvertebrates in karst springs. Samples were collected over four seasons from three springs where sculpins were present, with small G. minus, and three springs where sculpins were absent, with large G. minus. Morphospecies richness was significantly higher in springs with sculpin predators and larger G. minus individuals, and order Insecta was the most diverse taxon observed in both groups. Both Shannon’s and Margalef’s diversity were significantly higher in springs with fish than in springs without, while there was not a significant difference in Simpson’s diversity. Similarly, there was stronger community similarity between springs of the same type (fish present/absent) than between groups, indicating that predator presence, and secondarily G. minus size, is an influencing factor in the diversity of karst springs. This implies that larger G. minus may act as stronger competitors against other macroinvertebrates, decreasing diversity in springs where larger G. minus are present and sculpins are absent.
Effects of deformed phase space on scalar field cosmology
Creators: name: Pérez-Payán, S.
name: Sabido, M.
name: Yee, C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The effects of phase space deformations in standard scalar field cosmology are studied. The deformation is introduced by modifying the symplectic structure of the minisuperspace variables to have a deformed Poisson algebra among the coordinates and the canonical momenta. It is found that in the deformed minisuperspace model the volume of the universe is non singular. Finally, the late time evolution gives rise to an accelerating scale factor, this acceleration is a consequence of the noncommutative deformation.
description: 4 pages, 1 figure, RevTeX 4.1, section 2 and 3 revised, result unchanged
Non-minimally Coupled Cosmological Models with the Higgs-like Potentials and Negative Cosmological Constant
Creators: name: Aref'eva, I. Ya.
name: Bulatov, N. V.
name: Gorbachev, R. V.
name: Vernov, S. Yu.
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 study dynamics of non-minimally coupled scalar field cosmological models with Higgs-like potentials and a negative cosmological constant. In these models the inflationary stage of the Universe evolution changes into a quasi-cyclic stage of the Universe evolution with oscillation behaviour of the Hubble parameter from positive to negative values. Depending on the initial conditions the Hubble parameter can perform either one or several cycles before to become negative forever.
description: 22 pages, 6 figures, v4:Section 2 expanded, references added, accepted for publication in Class. Quant. Grav
Bioeconomies aim to become a beating heart of local communities, both rural and urban
Creators: name: Willmer, Gareth
Publisher: name: Zenodo
Year: 2018

description: As the EU aims to head towards a sustainable, low-carbon future, experts in bio-based industries at the forefront of this transition are turning food waste and waste-water sludge into bioplastics and converting decommissioned factories into new biorefineries by working with local populations.
Determinants of Macroinvertebrate Diversity in Karst Springs
Creators: name: Harkness, Hannah`
Publisher: name: American University
Year: 2023
Subjects: classificationCode: 3103
subject: Ecology
subject: FOS: Biological sciences
classificationCode: 310305
subject: Marine and estuarine ecology (incl. marine ichthyology)

description: The amphipod Gammarus minus is a dominant member of karst springs. It suffers from size-selective predation from sculpin predators; individuals are smaller where sculpins are present. This study aims to identify the relationship between G. minus size and the diversity of benthic macroinvertebrates in karst springs. Samples were collected over four seasons from three springs where sculpins were present, with small G. minus, and three springs where sculpins were absent, with large G. minus. Morphospecies richness was significantly higher in springs with sculpin predators and larger G. minus individuals, and order Insecta was the most diverse taxon observed in both groups. Both Shannon’s and Margalef’s diversity were significantly higher in springs with fish than in springs without, while there was not a significant difference in Simpson’s diversity. Similarly, there was stronger community similarity between springs of the same type (fish present/absent) than between groups, indicating that predator presence, and secondarily G. minus size, is an influencing factor in the diversity of karst springs. This implies that larger G. minus may act as stronger competitors against other macroinvertebrates, decreasing diversity in springs where larger G. minus are present and sculpins are absent.
title: Αντιδιαβρωτική προστασία και συντήρηση ναυπηγικής δεξαμενής
title: Anti-corrosive protection and maintenance of marine tanks
titleType: AlternativeTitle
Creators: name: Δρυμώνης, Κωνσταντίνος
Publisher: name: Πανεπιστήμιο Δυτικής Αττικής
Year: 2021
Subjects: Αντιδιαβρωτική προστασία
Συντήρηση
Ναυπηγική δεξαμενή
Αντιδιαβρωτική επίστρωση
Θερμοπλαστική επικάλυψη

description: Στην παρούσα διπλωματική εργασία εξετάζεται το πρόβλημα της διάβρωσης των ναυπηγικών χαλύβδινων δεξαμενών. Το διαβρωτικό περιβάλλον στο οποίο βρίσκονται εκτεθειμένες οι δεξαμενές του πλοίου ή άλλων στατικών ναυπηγικών κατασκευών ποικίλει ανάλογα με την κατασκευή και τη χρήση της δεξαμενής. Το θαλασσινό ή το γλυκό νερό, το περιεχόμενο της δεξαμενής και ο ατμοσφαιρικός αέρας είναι οι βασικοί παράγοντες που προκαλούν διάβρωση της μεταλλικής κατασκευής. Αντιδιαβρωτική προστασία εφαρμόζεται σε δεξαμενές των πλοίων, όπως δεξαμενές φορτίου και έρματος, σε πλωτές δεξαμενές και σε δεξαμενές υπεράκτιων κατασκευών. Παρουσιάζονται οι συνηθέστερες μέθοδοι αντιδιαβρωτικής προστασίας που χρησιμοποιούνται στις παραπάνω περιπτώσεις και διερευνώνται οι δυνατές μέθοδοι εφαρμογής επιστρώσεων και επικαλύψεων που μπορούν να εφαρμοστούν στην περίπτωση ναυπηγικών δεξαμενών, ώστε να εξασφαλίζεται η καλή τους κατάσταση και λειτουργία. Τέλος, εξετάζεται η κατάσταση της εργαστηριακής ναυπηγικής δεξαμενής του τμήματος Ναυπηγών Μηχανικών του ΠΑ.Δ.Α, στην οποία διεξάγονται πειράματα με μοντέλα υπό κλίμακα, και προτείνονται κατάλληλες μέθοδοι αντιδιαβρωτικής προστασίας για τη συντήρηση της κατασκευής αυτής.
Linearization of Hyperbolic Finite-Time Processes
Creators: name: Karrasch, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34A30, 37B55, 37D05, 34D09, 37D10, 37N10

description: We adapt the notion of processes to introduce an abstract framework for dynamics in finite time, i.e.\ on compact time sets. For linear finite-time processes a notion of hyperbolicity namely exponential monotonicity dichotomy (EMD) is introduced, thereby generalizing and unifying several existing approaches. We present a spectral theory for linear processes in a coherent way, based only on a logarithmic difference quotient, prove robustness of EMD with respect to a suitable (semi-)metric and provide exact perturbation bounds. Furthermore, we give a complete description of the local geometry around hyperbolic trajectories, including a direct and intrinsic proof of finite-time analogues of the local (un)stable manifold theorem and theorem of linearized asymptotic stability. As an application, we discuss our results for ordinary differential equations on a compact time-interval.
description: 32 pages
D7.2: 2nd Dissemination, communication and marketing plan
Creators: name: Nefeli Politi Stergiou
name: PAPADAKIS, Dimitrios
name: Milosavljevic, Igor
name: MAMAIS, Eleftherios
Publisher: name: Zenodo
Year: 2018

description: This report (D7.2) comprises the APOLLO updated Dissemination, communication and marketing plan, a comprehensive and living document which outlines the actions, tools and channels to be used throughout the project in the promotion of the services under development. The purpose of the document is to outline the strategy, activities, and tools with which the APOLLO project will communicate with a range of external stakeholders, as well as the timing of the various actions throughout the lifetime of the project. Further considerations and adjustments based on business plan aspects, communication messages and objectives are updated and described herein. The four Ps of marketing are presented as well as an updated marketing methodology based on the impact of D7.1 Dissemination Communication and Marketing Plan I activities and the advancements of various business aspects presented in D7.10 Business Plan.
On Understanding Statistical Data Analysis in Higher Education
Creators: name: Montalbano, Vera
Publisher: name: arXiv
Year: 2012
Subjects: subject: Physics Education (physics.ed-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Data analysis is a powerful tool in all experimental sciences. Statistical methods, such as sampling theory, computer technologies necessary for handling large amounts of data, skill in analysing information contained in different types of graphs are all competences necessary for achieving an in-depth data analysis. In higher education, these topics are usually fragmentized in different courses, the interdisciplinary integration can lack, some caution in the use of these topics can missing or be misunderstood. Students are often obliged to acquire these skills by themselves during the preparation of the final experimental thesis. A proposal for a learning path on nuclear phenomena is presented in order to develop these scientific competences in physics courses. An introduction to radioactivity and nuclear phenomenology is followed by measurements of natural radioactivity. Background and weak sources can be monitored for long time in a physics laboratory. The data are collected and analyzed in a computer lab in order to understand the importance of statistical analysis in a not trivial case.
description: 4 pages, 6 figures, presented at International Symposium on Interdisciplinary Research, Education, and Communication: IDREC 2012 in the Context of The 3rd International Multi-Conference on Complexity, Informatics and Cybernetics: IMCIC 2012; March 25th - 28th, 2012 ~ Orlando, Florida, USA
title: A Study of the Impact of Triggered Star Formation
Creators: name: Willcock, Michael
Publisher: name: University of Kent
Year: 2021

description: This thesis presents a statistical study of the impact of triggered star formation at the boundary of HII regions. HII regions are bubbles of ionised gas created by high energy radiation feedback from a host massive star. HII regions expand into their surrounding molecular gas due to the extreme temperature difference between the hot ionised gas of the HII region and the cool molecular gas of its natal clump. This results in the gas being swept up and compressed by ionising radiation. This compressed gas can then fragment and collapse to form stars. This is known as triggered star formation and is known to occur through mechanisms such as "The collect and collapse method" and "Radiative Driven Implosion". We visually analysed 5410 sources from the ATLASGAL survey, with the help of the GLIMPSE survey, to categorize them into "triggered" and "non-triggered" sources by visually inspecting the source for signs of triggered star formation and using the ATLAS-GAL contours to distinguish between finer details of the sources. We then compared the physical properties of these sources to see if we could find a difference between the sources that we had deemed triggered and those that were not. We also looked for a peak in source counts at the rim of their host bubbles in an attempt to replicate the results from Thompson et al. (2012) and S. Kendrew et al. (2012). Finally we try and set a lower limit of star formation taking place in the inner Galaxy that occurs through a triggering mechanism. We found statistically significant differences between the temperature, luminosity and luminosity to mass ratio when looking between triggered and non-triggered sources and found no significant differences between the radius and mass of the two different source categories. We find a peak in source counts at a distance of 1 bubble radius, this result being in line with the results of Thompson et al. (2012) and S. Kendrew et al. (2012).With this difference in physical properties, it is likely that there is a significant differ-ence in star formation occurring between our triggered and non-triggered sources, likely as a result of their parental HII regions impact on the surrounding molecular gas which points towards triggering.1 Finally with our catalogue providing a reasonable statistical representation of star formation in the inner Galaxy, we set a lower limit of∼12 % for triggered star formation that occurs in the inner Galaxy, once contaminating sources are excluded.
A Model-Based System for Automotive Emission Control
Creators: name: Phanden, Rakesh Kumar
name: Katyal, Puneet
name: Gulati, Vishal
Publisher: name: figshare
Year: 2021
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: In today’s scenario, intake/exhaust system of an automotive engine should be more environmental friendly. In order to create the environment free from hazardous pollutants such as Carbon Monoxides, Hydro Carbon and Nitrogen Oxides emitted from engines, there is a need to improve the performance of intake/exhaust system of an engine by controlling the amount of fuel burns in it. In actual, Air-Fuel (A/F) ratio is controlled by fuel injectors or by pass lines inside the carburetor of the engine. The control system measures the amount of excess oxygen, via an oxygen sensor in the exhaust, and attempts to maintain the system at stoichiometry (Ideal A/F ratio). Lean A/F ratio produces a large amount of Nitrogen Oxides and rich A/F ratio exhausts Carbon Monoxides and Hydro Carbon in excess. If A/F ratio deviates from stoichiometric point then pollutants are produced in emission and catalytic converter transform these pollutants into less harmful substances like carbon dioxide and water. Larger the A/F ratio deviation, the larger will be required catalyst to oxidize/reduce the pollutants. The proposed system will attempt to reduce these A/F deviations and hence allow a smaller catalyst to clean up the emission. The system has been modelled in MATLAB. The system spends all of its time on stoichiometry optimization leaving a little effect upon catalyst converters. A test bed for stoichiometric optimization of exhaust parameters is created. The test bed is able to simulate the step response with step disturbance at the output of the system and to maintain the emissions at the stoichiometric point without too much overshoot.
Overexpression of TDP-43 inhibits NF-κB activity by blocking p65 nuclear translocation
Creators: name: Zhu, Jingyan
Publisher: name: University of British Columbia
Year: 2013

description: TDP-43 (TAR DNA binding protein 43) is a heterogeneous nuclear ribonucleoprotein (hnRNP) that has been found to be mainly responsible for neurodegenerative diseases recently. Its involvement in nuclear factor-kappaB pathways has been reported in neuron and microglial cells that are linked to amyotrophic lateral sclerosis (ALS). Nuclear factor-kappaB (NF-κB) is a family that consists of five members that exist and function as dimers. NF-κB pathway targets more than hundreds of genes that are involved in inflammation, immunity and cancer. It also has functions in the nervous system. p50/p65 (p50/RelA) heterodimers, as the major Rel complex in the NF-κB family, are induced by diverse external physiological stimuli and modulate transcriptional activity in almost all cell types. Both p65 and TDP-43 translocation are through the classic nuclear transportation system. In this study, we report that TDP-43 overexpression could block TNF-α induced p65 nuclear translocation dose dependently that further inhibits p65 transactivation activity. Furthermore, the inhibition by TDP-43 is not through preventing IκB degradation but probably by competing the nuclear transporter-importin α3 (KPNA4) and this competition is dependent on the presence of NLS in TDP-43. Silencing TDP-43 by a specific siRNA also increased p65 nuclear localization upon TNF-α stimulation, suggesting that endogenous TDP-43 may be a default suppressor of NF-κB pathway. The above results indicate that TDP-43 may play an important role in regulating the levels of NF-κB activity by control the nuclear translocation of p65.
Coincidences between OVI and OVII Lines: Insights from High Resolution Simulations of the Warm-Hot Intergalactic Medium
Creators: name: Cen, Renyue
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: With high resolution (0.46kpc/h), adaptive mesh-refinement Eulerian cosmological hydrodynamic simulations we compute properties of O VI and O VII absorbers from the warm-hot intergalactic medium (WHIM). Our new simulations are in broad agreement with previous simulations, with ~40% of the intergalactic medium being in the WHIM at z=0. It is found (1) The amount of gas in the WHIM at temperature below and above 10^6K is about equal within uncertainties. (1) Our simulations are in excellent agreement with observed properties of O VI absorbers, with respect to the line incidence rate and Doppler width-column density relation. (2) Velocity structures within absorbing regions are a significant, and for large Doppler width clouds, a dominant contributor to the Doppler widths of both O VI and O VII absorbers. A non-negligible fraction (in number and mass) of O VI and O VII clouds can arise from gas of temperature lower than 10^5, until the Doppler width is well in excess of 100km/s. (3) Strong O VI absorbers are predominantly collisionally ionized. About (61%, 57%, 39%) of O VI absorbers in the column density ranges of log N(OVI) cm^2=(12.5-13,13-14,>14) have temperature lower than 10^5K. (4) Quantitative prediction is made for the presence of broad and shallow O VI lines, which current observations may have largely missed. Upcoming observations by COS may be able to provide a test. (5) The reported 3 sigma upper limit on the mean column density of coincidental O VII lines at the location of detected O VI lines by Yao et al is above the predicted value by a factor of 2.5-4. (6) The claimed observational detection of O VII lines by Nicastro et al, if true, is 2 sigma above what our simulations predict.
description: 42 pages, 18 figures, in the press of ApJ (2012, 751, 1)
Thermodynamics of a Schwarzschild Black Hole in Phantom Cosmology with Entropy Corrections
Creators: name: Jamil, Mubasher
name: Momeni, D.
name: Bamba, Kazuharu
name: Myrzakulov, Ratbay
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Motivated by some earlier works \cite{pavon,sadjadi} dealing with the study of generalized second law (GSL) of thermodynamics for a system comprising of a Schwarzschild black accreting a test non-self-gravitating fluid namely phantom energy in FRW universe, we extend them when the entropy of horizons of black hole and the cosmological undergo quantum corrections. Two types of such corrections are relevant here including logarithmic and power-law, while both are motivated from different theoretical backgrounds. We obtain general mathematical conditions for the validity of GSL in each case. Further we find that GSL restricts the mass of black hole for accretion of phantom energy. As such we obtain upper bounds on the mass of black hole above which the black hole cannot accrete the phantom fluid, otherwise the GSL is violated.
description: 17 pages, no figure, version accepted for publication in "Int. J. Mod. Phys. D"
L’Oriente nei racconti di viaggiatrici europee: Gertrude Bell & Isabelle Eberhardt
Creators: name: Hamad, Adlane Mohamed
Publisher: name: Università degli  Studi di Milano
Year: 2012

description: L’Oriente nei racconti di viaggiatrici europee: Gertrude Bell & Isabelle Eberhardt
Scheda tesi di Adlane Mohamed Hamad
description: Altre Modernità, No 8 (2012): Orientalismi
La propaganda come strumento di consenso di una dittatura: la Libia nelle immagini dell’esperienza coloniale italiana e nella Jamāhīriyya di Qaḏāfī
Creators: name: Massaro, Elena
Publisher: name: Università degli  Studi di Milano
Year: 2012

description: La propaganda come strumento di consenso di una dittatura: la Libia nelle immagini dell’esperienza coloniale italiana e nella Jamāhīriyya di Qaḏāfī

Scheda tesi di Elena Massaro
description: Altre Modernità, No 8 (2012): Orientalismi
Strongly disordered TiN and NbTiN s-wave superconductors probed by microwave electrodynamics
Creators: name: Driessen, E. F. C.
name: Coumou, P. C. J. J.
name: Tromp, R. R.
name: de Visser, P. J.
name: Klapwijk, T. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We probe the effects of strong disorder (2.4 < kFl < 8.6) on superconductivity in thin films of niobium titanium nitride and titanium nitride by measuring the microwave electrodynamics in coplanar waveguide resonators. We find a gradual evolution of the electromagnetic response with disorder, deviating from Mattis-Bardeen theory, for both materials. This result can be understood as due to changes in the quasiparticle density of states, induced by the short elastic scattering length. The observations are consistent with a model using an effective pair breaker, dependent on the level of disorder.
description: 5+4 pages, 3 + 2 figures