cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EFFECT OF SUGAR VS MIXED BREAKFAST ON PLASMA GHRELIN AND P-300 POTENTIALS
Creators: name: PAINI, STEFANO
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: ABSTRACT Background: Obesity is a health emergency growing worldwide. The hallmark of obesity is an augment in visceral fat. Alongside waist circumference gain, impaired blood lipid profile and hypertension it leads to Metabolic Syndrome (MetS). Amongst the several factors contributing to its spread, breakfast consumption plays a role promoting ghrelin regulation. In addition, breakfast consumption may ameliorate cognitive performance. Aim: We focused on how three different commercial breakfasts, with different contents of macronutrients, affected: 1) metabolic response and sense of satiety via ghrelin regulation (protocol M); 2) cognitive processing of sensory information via P300 recording (protocol N). To our purposes, we administered three different commercial breakfasts and glucose, as control, to 12 healthy subjects (6M/6F; 22.2�1.5 Kg/m2; 27�5 yo) who underwent two different experimental protocols to assess aim 1 and 2. Aside control (A 50gr glucose) The commercial breakfasts were as follows: B1) milk (125mL) and cornflakes (30gr); B2) milk (220mL), apple (200gr) and chocolate cream filled sponge cake (30gr) and B3) milk (125mL), apple (150gr), bread (50gr) and hazelnut-chocolate cream (15gr). Protocol M: each subject went through one Oral Glucose Tolerance Test (50gr-OGTT) and three-meal test loads (one for each tested breakfast). We collected blood samples at -15?; 0; 15?; 30?; 45?; 60?; 75?; 90? and 120?. Volunteers ate breakfast after the second blood sampling. We assayed glucose, insulin and ghrelin plasma levels (total). Protocol N: in four different days, each subject underwent eight evoked related potentials measurement (ERPs), two for each breakfast (one after a night fast and one three hours after breakfast consumption). To our purposes, we recorded frontal zone (FZ) ERPs latencies. Results: metabolic data showed that all three commercial breakfasts gave a significant lower glycemic response when compared to glucose (B1: p=<0.05; B2, B3: p<0.01) alongside a lower insulin response (only breakfasts B1 and B2 in a significant fashion: p<0.01). Ghrelinemia inhibition tended to be greater in B3 group (332.1�30.2 pg/mL) with respect to A (420.6�44.2 pg/mL), but did not achieve statistical significance. Electrophysiological data showed that, three hours after ingestion, B1, B2 and B3 displayed a decrease in FZ ERPs latency when respect to A, thus only B3 in a significant way (p<0.01). Conclusion: we demonstrated that different breakfasts were able to elicit lower glycemic and insulin responses even with a greater carbohydrate content. B1, B2 and B3 groups displayed a tendency to maintain satiety via ghrelin inhibition. Furthermore, hazelnut-chocolate cream breakfast (B3) consumption decreased P300 latency, suggesting ameliorated cognitive performance.
Constraining Supersymmetry using the relic density and the Higgs boson
Creators: name: Henrot-Versillé, Sophie
name: Lafaye, Rémi
name: Plehn, Tilman
name: Rauch, Michael
name: Zerwas, Dirk
name: Plaszczynski, Stéphane
name: d'Orfeuil, Benjamin Rouillé
name: Spinelli, Marta
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent measurements by Planck, LHC experiments, and Xenon100 have significant impact on supersymmetric models and their parameters. We first illustrate the constraints in the mSUGRA plane and then perform a detailed analysis of the general MSSM with 13 free parameters. Using SFitter, Bayesian and Profile Likelihood approaches are applied and their results compared. The allowed structures in the parameter spaces are largely defined by different mechanisms of dark matter annihilation in combination with the light Higgs mass prediction. In mSUGRA the pseudoscalar Higgs funnel and stau co-annihilation processes are still avoiding experimental pressure. In the MSSM stau co-annihilation, the light Higgs funnel, a mixed bino--higgsino region including the heavy Higgs funnel, and a large higgsino region predict the correct relic density. Volume effects and changes in the model parameters impact the extracted mSUGRA and MSSM parameter regions in the Bayesian analysis.
title: Gleichheit und Ungleichheit in der Leberallokation. Aktuelle Fragen klinischer Praxis und ihre Reflexion aus medizinischer, ethischer und rechtlicher Sicht
Creators: name: Bobbert, Monika
name: Dannecker, Gerhard
name: Ganten, Tom M.
name: Streng, Anne F.
Publisher: name: University Library Heidelberg
Year: 2013

description: Wenngleich die eigentliche Verteilung postmortal gespendeter Lebern ausschließlich dringlichkeitsbasiert erfolgt, ermöglichen es die Richtlinien der Bundesärztekammer und das Transplantationsgesetz den Zugang zur Warteliste von hohen Anforderungen an den Transplantationserfolg abhängig zu machen, wovon die medizinische Praxis aufgrund der gegebenen Knappheit an Spenderlebern auch Gebrauch macht. Die Vorgehensweise, bereits den Wartelistenzugang von hohen Erfolgsanforderungen abhängig zu machen, ist jedoch selbst dann verfassungswidrig, wenn man die vorherrschende Verfassungsinterpretation nicht teilt, wonach bei der Organallokation die Erfolgsaussichten jenseits einer Minimalnutzenschwelle außer Betracht bleiben müssen (Teil 1). Trotz rechtlicher Vorgaben und beruflicher Regelungen haben Ärzte Beurteilungsspielräume, indem sie Patienten für die Warteliste anmelden, ggf. herunternehmen und bei Bereitstellung eines Organs über die „Transplantationsfähigkeit“ entscheiden. Implizit vorausgesetzte Erfolgsmaße wie z.B. die angestrebte Überlebenszeit des Patienten variieren jedoch zwischen wenigen Monaten oder mehreren Jahren. Zur Gleichbe-handlung gleicher Fälle und zur Erhöhung der Transparenz können begründete Erfolgskriterien, prognostische Scores und klinische Expertenrunden beitragen (Teil 2).
description: Forschungsansatz, -methode oder -verfahren: normativ; juristisch;
description: Forum Marsilius-Kolleg, Bd. 4 (2013), Beginn und Erscheinungsfrequenz: Jahr: 2012
IMPROVING TRAFFICKING AND KINETICS OF A SYNTHETIC LIGHT-GATED POTASSIUM CHANNEL
Creators: name: ALBERIO, LAURA SILVIA
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: Optogenetics uses light-regulated ion channels and pumps to modulate the activity of neurons with high temporal precision. To date, inhibition of neuronal firing is obtained by means of hyperpolarizing pumps, and/or chloride channels. However, a light-gated potassium (K+) channel would represent a more physiological tool because of the universal role of K+ in repolarizing membrane potential in animal cells. We recently engineered a synthetic light-gated channel by fusing the LOV (light oxygen voltage) domain of the plant blue-light receptor AsPhototropin1 to the viral K+ channel Kcv-PBCV1. The resulting channel BLINK1 (Blue Light Induced K+ channel) is reversibly activated by blue light and shows K+ selectivity and high single channel conductance, when expressed in HEK 293T cells. However, BLINK1 low expression rate at the plasma membrane (PM) (less than 10% in HEK 293T cells) prevented so far its application in optogenetics. The goal of my PhD thesis has been to improve BLINK1 expression in HEK293T cells and to test it in two model systems, zebrafish and mouse. To this end, I have applied molecular and cellular approaches for modifying the trafficking and the overall folding and stability of the channel. Both the LOV domain and the pore domain have been modified by either the addition of PM anchoring motifs and structural elements (LOV domain) or the addition of trafficking motifs (Kcv). The outcome of this study, BLINK2, was obtained by adding a 14-3-3 signal peptide to the C terminus of BLINK1. It showed a moderate increase in PM expression (26% vs 10%) compared to BLINK1, but responded to light with a delay of about 90 s. We further improved BLINK2 by introducing a point mutation (Q513D) in the LOV domain that reduced the delay to about 30 s. When tested in mouse, BLINK2 Q513D efficiently inhibited spontaneous firing in brain slices. BLINK2 Q513D is currently undergoing a test in vivo in a mouse behavioral experiment.
Binary distributions of concentric rings
Creators: name: Zwiernik, N. Wermuth G. M. Marchetti P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We introduce families of jointly symmetric, binary distributions that are generated over directed star graphs whose nodes represent variables and whose edges indicate positive dependences. The families are parametrized in terms of a single parameter. It is an outstanding feature of these distributions that joint probabilities relate to evenly-spaced concentric rings. Kronecker product characterizations make them computationally attractive for a large number of variables. We study the behaviour of different measures of dependence and derive maximum likelihood estimates when all nodes are observed and when the inner node is hidden.
description: 12 pages, 1 figure, 8 tables
ESSAYS ON THE POLITICAL ECONOMY OF TRADE AND ENVIRONMENTAL POLICIES
Creators: name: PACCA, LUCIA
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: Chapter I: In this paper, we investigate the effect of lobbying and consumer externality on the pattern of protection through non-tariff barriers to trade (NTMs) across United States manufacturing sectors. We first extend the Grossman and Helpman (1994) model, ?Protection for Sale", incorporating consumer externality. Externality is intended, in our framework, as the concern of a government for consumers' safety and the environment, which should result in increased protection through standards and technical measures. In our model, externality adds to interest groups' lobbying activity in determining the increase in nontariff measures. We test the predictions of our model using a novel database on 2014 stock of NTMs. We measure political organization of industries through lobbying expenditures data, and we identify sectors where government cares the most about consumers' wellbeing using media sources. Our results suggest that both pressure from interest groups and concerns about safety and environmental issues lead to an increase in the pattern of protection across US manufacturing sectors. Chapter II: This article investigates the influence of lobbying, electoral incentives, and the ideology of U.S. state governors on environmental expenditures. A theoretical framework is presented, emphasizing that the potential impact of lobbying and messaging from interest groups on environmental policies depends on the ideology of governors. Implementing a Regression Discontinuity Design (RDD), we identify and estimate the causal effect of state governors on the level of environmental expenditures. We test whether governors tend to deviate from their own political ideology when facing pressures from polluting lobbies and electoral incentives from environmental organizations. The empirical results reveal that, when Democratic governors are in charge, environmental expenditures are, on average, higher. However, in oil-abundant states, Democratic politicians tend to allocate fewer resources to environmental preservation, suggesting that political pressure from lobbying groups matters.
Concepción teórico-metodológica para favorecer el proceso de formación laboral de los alumnos con necesidades educativas especiales
Creators: name: Leyva Mariño, Rosa Adela
Publisher: name: Zenodo
Year: 2024

description: La tesis que se presenta tiene como objeto de estudio: la formación laboral de los alumnos con necesidades educativas especiales. Se propone una concepción teórico-metodológica para favorecer el proceso de formación laboral de los alumnos con necesidades educativas especiales y se usa como vía para la dirección de este proceso, la preparación de los docentes.La concepción teórico-metodológica se sustenta en la sistematización y en lavaloración realizadas por la autora acerca de las concepciones teóricometodológicas relacionadas con el tratamiento de la formación laboral y la preparación de los docentes para dirigirla, las que sirvieron de punto de partida para adentrarse en la contextualización de un proceso básico centrado en el desarrollo del eje temático articulador, para enfrentar el proceso educativo en la educación especial.
Dark Mass Creation During EWPT Via Dark Energy Interaction
Creators: name: Kisslinger, Leonard S.
name: Casper, Steven
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We add Dark Matter Dark Energy terms with a quintessence field interacting with a Dark Matter field to a MSSM EW Lagrangian previously used to calculate the magnetic field created during the EWPT. From the expectation value of the quintessence field we estimate the Dark Matter mass for parameters used in previous work on Dark Matter-Dark Energy interactions.
description: 6 pages,2 figures
Quantitative Characterizations of Regularity Properties of Collections of Sets
Creators: name: Kruger, Alexander
name: Thao, Nguyen Hieu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Several primal and dual characterizations of regularity properties of collections of sets in normed linear spaces are discussed. Relationships between regularity properties of collections of sets and those of set-valued mappings are provided.
Smooth crossed products of Rieffel's deformations
Creators: name: Neshveyev, Sergey
Publisher: name: arXiv
Year: 2013
Subjects: subject: Operator Algebras (math.OA)
subject: K-Theory and Homology (math.KT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Assume A is a Frechet algebra equipped with a smooth isometric action of a vector group V, and consider Rieffel's deformation A_J of A. We construct an explicit isomorphism between the smooth crossed products V\ltimes\A_J and V\ltimes\A. When combined with the Elliott-Natsume-Nest isomorphism, this immediately implies that the periodic cyclic cohomology is invariant under deformation. Specializing to the case of smooth subalgebras of C*-algebras, we also get a simple proof of equivalence of Rieffel's and Kasprzak's approaches to deformation.
description: 8 pages; minor changes, to appear in Lett. Math. Phys
The electromagnetic form factor of the pion: Results from the lattice
Creators: name: Brandt, Bastian B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: This review contains an overview over recent results for the electromagnetic iso-vector form factor of the pion obtained in lattice QCD with dynamical fermions. Particular attention is given to the extrapolation to the physical point and an easy assessment of the control over the main systematic effects by imposing quality criteria and an associated sign code, similar to the ones used by the FLAG working group. Also included is a brief discussion of recent developments and future challenges concerning the accurate extraction of the form factor in the lattice framework.
description: 15 pages, 6 figures, 2 tables, invited mini-review for the International Journal of Modern Physics E; v2: minor corrections and one reference added, matches published version
CLINICAL TRIALS AND DRUG REGULATION: A PHILOSOPHICAL INQUIRY
Creators: name: ANDREOLETTI, MATTIA
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: This thesis is organized around two overlapping questions: (1) whether and how the current approach to the regulation of new medicines should be modified to manage issues generated by new biomedical products, and (2) whether this issue may be reduced to an epistemological and methodological analyses. I explore and discuss some philosophical issues related to these questions.
New approaches for physical nano-characterisation of spider silks
Creators: name: Porokh, Maria
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: The light scattering experiment was designed to study a single thread of spider silk as a microoptical element. A silk thread was irradiated with a narrow, collimated beam of white light at a right angle to the axis of the thread. The light scattered by the silk was measured at various angles around the thread with high spectral and angular resolution. The experimental data were consistent with the theory of plane wave scattering by a single, multilayered or two parallel dielectric cylinders, depending on the type of the silk. It has been shown that the matching of the experimental and the theoretically modelled spectra is a convenient tool for the determination of the size and morphology of a tiny micro-thread. Transmission electron microscopy was performed in order to reveal the genuine morphology and structure of the silk and how it was impacted by the use of standard fixatives. Standard fixatives were alternately excluded from the conventional sample preparation protocol. A fraction of the silk threads swelled during sample preparation, which was attributed to the uptake of liquid fixatives through the micro-breakages in the skin layer of the silk. However, the extent to which the skin layer of the silk was differentiated on TEM micrographs was shown to depend primarily on the use of fixatives, and the untreated silk showed no explicit contrast between multiple layers. A pilot secondary ion mass spectroscopy study of spider silk revealed potassium, sodium, phosphorous, chlorine and fluorine in the elemental composition of the silk. The spatial and depth distributions of these elements within the silk were obtained at a nano- and microscale. Some elements of the silk structure, such as the outer layers of the thread, were differentiated and possibly transformed via the primary ion beam during measurement. The unexpected edge effects were discovered along the perimeters of the measured areas, which have been interpreted as the sputter products of the silk having been moved to the sides of a raster by the dynamic primary ion beam.
A family of plane curves with two or more Galois points in positive characteristic
Creators: name: Fukasawa, Satoru
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H50, 12F10, 14H05

description: We give new examples of plane curves with two or more Galois points as a family, and describe the number of Galois points for these curves, by using finite fields.
description: 13 pages. Changed the title and Revised Lemmas 4, 5 and 6
Oscillation criteria for differential equations with several retarded arguments
Creators: name: Infante, Gennaro
name: Koplatadze, Roman
name: Stavroulakis, Ioannis P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 34K11, Secondary 34K06

description: Consider the first-order linear differential equation with several retarded arguments $$ x^{\prime}(t)+\sum\limits_{i=1}^{m}p_{i}(t)x(τ_{i}(t))=0,\;\;\;t\geq t_{0}, $$ where the functions $p_{i},τ_{i}\in C([t_{0,}\infty),\mathbb{R}^{+}),$ for every $i=1,2,\ldots,m,$ $τ_{i}(t)\leq t$ \ for $t\geq t_{0}$ and $% \lim_{t\rightarrow \infty}τ_{i}(t)=\infty $. The state of the art on the oscillation of all solutions to these equations are established especially in the case of non-monotone arguments. Examples illustrating the results are given.
description: 14 pages, paper to appear in Funkcialaj Ekvacioj
LORENTZ INVARIANCE VIOLATION EFFECTS ON ULTRA HIGH ENERGY COSMIC RAYS PROPAGATION: A GEOMETRICAL APPROACH
Creators: name: TORRI, MARCO DANILO CLAUDIO
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: Cosmic rays are highly energetic extraterrestrial particles, mainly originated outside the Solar system, with energy that spans many decades. Since they include the most energetic particles, accessible nowadays, it is very interesting to study this kind of radiation, that constitute a significant source of informations about astrophysical objects. Moreover these highly energetic particles propagate for cosmological distances, so they can furnish a deeper understanding of the physical mechanisms of the universe. Hence it results very important to obtain a deeper understanding of the so called GZK ?puzzle?. Universe results opaque to the propagation of the highest energetic particles, because of their interaction with the Cosmic Microwave Background Radiation (CMBR). Therefore the sources of these Ultra High Energy Cosmic Rays (UHECR) must be collocated inside a foreseen opacity sphere (GZK effect). But some recent experimental observations seem to indicate the possibility that certain UHECR correlate with candidate sources collocated farther than expected. One of the most interesting possible explanations of this GZK suppression ?puzzle? consists in introducing a particle kinematics modification, assuming this effect as a relic of the supposed quantum structure of space-time. In this respect, physics is amended by the introduction of small perturbations to the Lorentz symmetry, the so called Lorentz Invariance Violation (LIV) scenario. In this work, to preserve the idea of space-time homogeneity and isotropy, a possible way to introduce a LIV theory, without a preferred class of inertial observers, is explored. The Lorentz symmetry is therefore only modified, as in Doubly Special Relativity theories. Thus the idea of space-time isotropy results restored respect to the new amended Lorentz transformations, here introduced. Hence it results possible to solve the GZK ?puzzle? without the necessity of the introduction of a privileged class of inertial observers. The geometry of space-time is constructed starting from the momentum space modified structure, determined by the amended particle kinematics. The resultant geometry is of Finsler type, with an acquired energy dependance. The Lorentz group is then modified, in order to preserve space-time isotropy. The particle Standard Model results modified, but it still preserve the symmetry structure of the ordinary one, as shown proving the validity of the Coleman-Mandula theorem, with the substitution of the ordinary Lorentz group with the modified one. Finally the model is employed to compute phenomenological predictions on the behavior of UHECR and even of high energy neutrinos.
Linking covariant and canonical LQG II: Spin foam projector
Creators: name: Thiemann, Thomas
name: Zipfel, Antonia
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In a seminal paper, Kaminski, Kisielowski an Lewandowski for the first time extended the definition of spin foam models to arbitrary boundary graphs. This is a prerequisite in order to make contact to the canonical formulation of Loop Quantum Gravity (LQG) whose Hilbert space contains all these graphs. This makes it finally possible to investigate the question whether any of the presently considered spin foam models yields a rigging map for any of the presently defined Hamiltonian constraint operators. In the analysis of this would-be spin foam rigging map we are able to identify an elementary spin foam transfer matrix that allows to generate any finite foam as a finite power of the transfer matrix. However, it transpires that the resulting object, as written, does not define a projector on the physical Hilbert space. This statement is independent of the concrete spin foam model and Hamiltonian constraint. Nevertehless, the transfer matrix potentially contains the necessary ingredient in order to construct a proper rigging map in terms of a modified transfer matrix.
description: 62 pages, 14 figures Abstract changed, slightly reorganized, minor errors corrected
Evoluzione metamorfica delle unit� paraderivate nella Finestra dei Tauri occidentale
Creators: name: DA MOMMIO, ALESSANDRO
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: The western Tauern Window is a key area for the reconstruction of the tectonic evolution of the Eastern Alps. Here basement units derived from the European margin are stacked together with their parautochthonous post-Variscan cover in a south-vergent crustal scale duplex that also involves remnants of the Penninic ocean (Glockner nappe). The major lithostratigraphic units comprise: i) a polymetamorphic basement consisting of mainly amphibolites, migmatites, orthogneisses, and locally pre-Mesozoic ultramafic to mafic bodies; ii) the Tux and Zillertal orthogneiss that intruded unit (i) during early Permian times; iii) the parautochthonous metasedimentary cover including meta-conglomerates, calcitic and dolomitic marbles, calcareous micaschists, quartzites, and subordinate greenschists. iv) the Glockner Nappe, km-thick sequences of calcschists with interbeddings of prasinites, amphibolites and ultramafic bodies. Along the tectonic contact between the northern and southern duplex antiforms a slice (about 1km-thick, wedging out westward) of graphite-rich garnet micaschists with minor quartzites and calcschists (?Greiner schists? Auct.) occurs. A peculiar feature of the parautochthonous metasedimentary cover is the occurrence of static recrystallization of amphibole, micas, garnet, and staurolite (?Tauerncrystallisation? Auct.) crosscutting the main foliation, D2; this late metamorphic stage is controversial in the Glockner nappe, as poorly visible on the field, but possibly characterized at a microscopic scale by a secondary stage of growth of biotite and garnet in micaschists. Garnet and chloritoid were found in structural units of the Glockner nappe close to metasedimentary cover. Garnet amphibolites were recovered in units stacked to the Zillertal gneiss only. Two phases of roughly coaxial isoclinal folding, the first one of these responsible for the regional foliation, have been recognized in the post-Variscan cover of the ?Zentralgneiss?. In the frame of the of the South Tyrol Province CARG project, devoted to 1:10000 mapping of the Vipiteno sheet, the goal of this work is to provide the constraints to identify tectonometamorphic units with coherent structural and metamorphic evolution. Preliminary results display significant differences among the reconstructed P-T paths of the Glockner schists and metasedimentary rocks of the post-Variscan cover of the Tux and Zillertal gneisses. Systematics of mineral chemistry has highlighted that garnets grown in micaschists synchronous to regional foliation in the Glockner nappe show Ca-Mg rich rims to a relatively Ca-Mg-poor core, with a zonation pattern revealing two stages of growth. On the contrary, in the metasedimentary rocks the Ca content in the garnet tends to decrease from core to rim, as Mg increases. A set of 49 whole rock analyses, both on metapelites and on calcschists, provide us the constraints to infer the features of protolith, and to compute pseudosections for thermobarometric estimates.
Type-I integrable quantum impurities in the Heisenberg model
Creators: name: Doikou, Anastasia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Type-I quantum impurities are investigated in the context of the integrable Heisenberg model. This type of defects is associated to the (q)-harmonic oscillator algebra. The transmission matrices associated to this particular type of defects are computed via the Bethe ansatz methodology for the XXX model, as well as for the critical and non-critical XXZ spin chain. In the attractive regime of the critical XXZ spin chain the transmission amplitudes for the breathers are also identified.
description: 20 pages, Latex. Minor modifications
Reducibility of Killing tensors in d>4 NHEK geometry
Creators: name: Chernyavsky, Dmitry
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An extremal rotating black hole in arbitrary dimension, along with time translations and rotations, possesses a number of hidden symmetries characterized by the second rank Killing tensors. As is known, in the near horizon limit the isometry group of the metric is enhanced to include the conformal factor SO(2,1). It is demonstrated that for the near horizon extremal Kerr (NHEK) geometry in arbitrary dimension one of the Killing tensors decomposes into a quadratic combination of the Killing vectors corresponding to the conformal group, while the rest is functionally independent.
description: The version to appear in Journal of Geometry and Physics
Dynamical axion in topological superconductors and superfluids
Creators: name: Shiozaki, Ken
name: Fujimoto, Satoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider dynamical axion phenomena in topological superconductors and superfluids in three spatial dimensions in terms of the gravitoelectromagnetic topological action, in which the axion field couples with mechanical rotation under finite temperature gradient. The dynamical axion is induced by relative phase fluctuations between topological and s-wave superconducting orders. We show that an antisymmetric spin-orbit interaction which induces parity-mixing of Cooper pairs enlarges the parameter region in which the dynamical axion fluctuation appears as a low-energy excitation. We propose that the dynamical axion increases the moment of inertia, and in the case of ac mechanical rotation, i.e. a shaking motion with a finite frequency $ω$, as $ω$ approaches the dynamical axion fluctuation mass, the observation of this effect becomes feasible.
description: 14 pages, 3 figures
Living in the legal limbo. A socio-legal approach to sex workers and waste pickers' claims for labour recognition.
Creators: name: FASSI, MARISA NATALIA
Publisher: name: Universit� degli Studi di Milano
Year: 2016

description: This thesis explores the relationship between work, criminality and law. It does so by understanding how the legal/illegal dividing line shapes, and is shaped, by the moving borders between work/non-work and crime/non-crime. The groups described in this thesis exist in an area of in-between in which socio-legal dynamics of power and resistance emerge. The notion of ?legal limbo? that is defined an explored in the thesis refers to activities, situations or orientations that are neither legal nor illegal in a specific legal system. In the search for an empirical account of the notion of legal limbo, this research uses income-generating activities that are not protected by labour law nor are they conceived as crime, as its primary focus of analysis: sex workers and waste pickers in the city of C�rdoba-Argentina. In order to empirically assess these two groups? dynamics in the legal limbo, this thesis adopts a qualitative methodology. The fieldwork has been divided in three stages: first, a pilot study with groups whose income generating activity was in the legal limbo in the city of C�rdoba; second, the fieldwork with sex workers and waste pickers; and third, series workshops to facilitate contextual debates about what these groups want from the law. Empirically, then, the thesis explores the betwixt socio-legal position of those workers. Therefrom, the key research question that therefore guides this inquiry is: What are the socio-legal dynamics of power and resistance around sex work and waste picking in the city of C�rdoba-Argentina?
Fast Basins and Branched Fractal Manifolds of Attractors of Iterated Function Systems
Creators: name: Barnsley, Michael F.
name: Vince, Andrew
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 28A80, 37B10, 37F20

description: The fast basin of an attractor of an iterated function system (IFS) is the set of points in the domain of the IFS whose orbits under the associated semigroup intersect the attractor. Fast basins can have non-integer dimension and comprise a class of deterministic fractal sets. The relationship between the basin and the fast basin of a point-fibred attractor is analyzed. To better understand the topology and geometry of fast basins, and because of analogies with analytic continuation, branched fractal manifolds are introduced. A branched fractal manifold is a metric space constructed from the extended code space of a point-fibred attractor, by identifying some addresses. Typically, a branched fractal manifold is a union of a nondenumerable collection of nonhomeomorphic objects, isometric copies of generalized fractal blowups of the attractor.
MYC-DEPENDENT TRANSCRIPTIONAL PROGRAMS IN MAMMARY EPITHELIAL CELLS
Creators: name: CASOLI, LUCIA
Publisher: name: Universit� degli Studi di Milano
Year: 2016

description: The transcriptional programs governing the decision of mammary epithelial stem and progenitor cells to self-renew or differentiate are still not completely outlined. Previous evidences pointed out the role of Myc, and in particular of its repressive activity with Miz1, in these processes. Since the presence of stem-like cells within the tumor, the so-called cancer stem cells (CSCs), is now considered crucial for tumor initiation and maintenance, clarifying this aspect of Myc biology could be relevant in understanding its contribution to the genesis of breast cancer. Here, we used RNA-seq technology to profile the transcriptional programs regulated by Myc in two different settings. First, we studied immortalized mammary epithelial cells, in which we induced either Myc loss or gain of function. In this setting, Myc contributed to the positive and negative regulation of different sets of genes. Activated genes are involved in proliferation, metabolism, ribosomal biogenesis, mitochondrial organization, chromatin modification, RNA processing and modification. Repressed genes, on the other hand, were mainly involved in lysosome and vesicle-mediated transport, angiogenesis, cell death, extracellular matrix interaction, cell adhesion regulation, epithelial development and morphogenesis. Second, we studied the effect of Myc activation in mammosphere cultures, which provide a measure of stem cell activity. We demonstrate that Myc, when overexpressed, is able to promote self-renewal of mammary epithelial stem cells, as assessed by increased mammosphere expansion, and confirmed by mammary gland reconstitution assays in vivo. This activity of Myc is in part dependent on the interaction with the co-repressor protein Miz1, since the Myc mutant V394D (hereby Myc VD), impaired in Miz1 binding, is defective in promoting self-renewal. Overexpression of Myc in mammospheres was associated with the de-regulated expression of about three thousand genes, with similar numbers of up- and down-regulated genes. A group of around nine hundred genes was specifically repressed by Myc WT and not by the VD mutant. Surprisingly, the overlap between the groups of regulated genes in those mammary epithelial cells in adhesion or grown as mammospheres was limited, illustrating the context-dependency of Myc-dependent responses. Thus, transcriptional repression via Miz1 may constitute one of the mechanisms through which Myc sustains mammary epithelial cell self-renewal. We are currently setting a functional screen, among genes repressed in a Miz1-dependent manner, to identify those that are critical in this process. Our study shall shed light on the mechanisms through which Myc regulates self-renewal in mammary epithelial stem and progenitor cells. Understanding this could be crucial in order to clarify the physiopathological roles of Myc in the mammary gland.
THE HETEROARYLETHENES: SYNTHESIS, ELECTROCHEMISTRY AND INVESTIGATION ON THE AGGREGATION-INDUCED EMISSION OF A PROMISING CLASS OF MOLECULES WITH LUMINESCENT PROPERTIES
Creators: name: VIGLIANTI, LUCIA
Publisher: name: Universit� degli Studi di Milano
Year: 2015

description: The present research has been aimed on the synthesis and to the electrochemical and photophysical investigation of the HeteroArylEthene class constituted by the DiThienylEthene DTE, TriThienylEthene TrTE, TetraThienylEthene TTE, DiFurylEthene DFE, TriFurylEthene TrFE and TetraFurylEthene TFE. The study includes as a benchmark the analogous phenyl-based series which was already well known concerning the synthesis the photophysical properties and the applications. A very limited knowledge was so far available concerning the heteroaryl-based ethenes. Among the investigated systems, TFE and TrTE are entirely new compounds and have been never investigated before; the other structures had already been reported in literature but only obtained by McMurry coupling, while in this work we have proposed a convenient alternative approach (besides significantly improving the McMurry protocol). Moreover, a deep electrochemical and photophysical characterization was still lacking; as a consequence, the highly interesting electrochemical and photoluminescence properties remained concealed until the study performed in this PhD research work, by which interesting features have been unearthed. In particular the investigate molecules have shown efficient ?-conjugation emission and electropolymerization ability and the excellent property of the luminescence in solid state. So besides performing a detailed electrochemical investigation of the synthesized family members in terms of redox properties and electrooligomerization ability, we particularly concentrated on their photophysical investigation in terms of Aggregation-Induced Emission features. The latter has been performed in a seven-month stage at the Hong Kong University of Science and Technology, in the laboratories of Professor Ben Zhong Tang, the discoverer of the AIE phenomenon. The results obtained are of high interest and applicative potential. Thus systematic study performed in this thesis now provides a deep knowledge about the heteroarylethene properties which can allow to properly design more complex systems in which these scaffold could be used as starting block. In addition, their unique property of emitting light in solid but not in solution, renders them even more appealing, as small single molecule to be employed in hi-tech applications.
Universality of the local regime for the block band matrices with a finite number of blocks
Creators: name: Shcherbina, Tatyana
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the block band matrices, i.e. the Hermitian matrices $H_N$, $N=|Λ|W$ with elements $H_{jk,αβ}$, where $j,k \inΛ=[1,m]^d\cap \mathbb{Z}^d$ (they parameterize the lattice sites) and $α, β= 1,\ldots, W$ (they parameterize the orbitals on each site). The entries $H_{jk,αβ}$ are random Gaussian variables with mean zero such that $\langle H_{j_1k_1,α_1β_1}H_{j_2k_2,α_2β_2}\rangle=δ_{j_1k_2}δ_{j_2k_1} δ_{α_1β_2}δ_{β_1α_2} J_{j_1k_1},$ where $J=1/W+αΔ/W$, $α\le 1/4d$. This matrices are the special case of Wegner's $W$-orbital models. Assuming that the number of sites $|Λ|$ is finite, we prove universality of the local eigenvalue statistics of $H_N$ for the energies $|λ_0|< \sqrt{2}$.
description: some typos were fixed
Renormalization and redundancy in 2d quantum field theories
Creators: name: Behr, Nicolas
name: Konechny, Anatoly
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze renormalization group (RG) flows in two-dimensional quantum field theories in the presence of redundant directions. We use the operator picture in which redundant operators are total derivatives. Our analysis has three levels of generality. We introduce a redundancy anomaly equation which is analyzed together with the RG anomaly equation previously considered by H.Osborn [8] and D.Friedan and A.Konechny [7]. The Wess-Zumino consistency conditions between these anomalies yield a number of general relations which should hold to all orders in perturbation theory. We further use conformal perturbation theory to study field theories in the vicinity of a fixed point when some of the symmetries of the fixed point are broken by the perturbation. We relate various anomaly coefficients to OPE coefficients at the fixed point and analyze which operators become redundant and how they participate in the RG flow. Finally, we illustrate our findings by three explicit models constructed as current-current perturbations of SU(2)_k WZW model. At each generality level we discuss the geometric picture behind redundancy and how one can reduce the number of couplings by taking a quotient with respect to the redundant directions. We point to the special role of polar representations for the redundancy groups.
description: 59 pages, 5 pdf figures; V3: version equivalent to the version published in JHEP (up to an additional footnote)
Temperature chaos in 3D Ising Spin Glasses is driven by rare events
Creators: name: Fernandez, L. A.
name: Martin-Mayor, V.
name: Parisi, G.
name: Seoane, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Temperature chaos has often been reported in literature as a rare-event driven phenomenon. However, this fact has always been ignored in the data analysis, thus erasing the signal of the chaotic behavior (still rare in the sizes achieved) and leading to an overall picture of a weak and gradual phenomenon. On the contrary, our analysis relies on a large-deviations functional that allows to discuss the size dependencies. In addition, we had at our disposal unprecedentedly large configurations equilibrated at low temperatures, thanks to the Janus computer. According to our results, when temperature chaos occurs its effects are strong and can be felt even at short distances.
description: 5 pages, 5 figures
Granice dysponowania bronią palną i amunicją w świetle norm prawa karnego - zagadnienia wybrane
Creators: name: Kąkol, Cezary
Publisher: name: Annales Pomorienses. Ius
Year: 2022

description: Dostęp do broni palnej i amunicji w polskim systemie prawnym jest ściśle reglamentowany. Uzyskanie pozwolenia na posiadanie broni palnej i amunicji nie oznacza jednak, że jego beneficjent ma swobodę dysponowania i posiadania ich w każdych okolicznościach. Przyjęty przez ustawodawcę model istotnie ogranicza legalnemu posiadaczowi możliwość posiadania broni palnej i amunicji w określonych sytuacjach faktycznych, przy czym naruszenie norm w tym zakresie sankcjonuje m.in. na płaszczyźnie prawa karnego. W artykule przedstawiono wybrane regulacje prawnokarne, które wskazane ograniczenia przewidują, zwracając uwagę na ich rozproszenie w systemie prawa oraz poszukując przyczyn kryminalizacji określonych w nich zachowań.
description: Annales Pomorienses. Ius, Tom 1 Nr 1 (2022): Annales Pomorienses. Ius
Teachers' affective domain and transformation in team-based learning
Creators: name: Witney, Leigh
Publisher: name: Australian Catholic University
Year: 2021
Subjects: affect
perspective transformation
transformative learning
teacher professional learning
action research

description: Teachers engaged in innovative professional learning and applied action research to investigate and understand pedagogical or school-focussed elements that they considered were problematic for their teaching practice or student learning. Along with the new skills and knowledge they acquired to inform their practice, the professional learning experience was a catalyst for multidimensional perspective transformation and the transformative learning some teachers realised. This qualitative, interpretive research problematised the phenomenon of personal transformation occurring for some teachers and explored a central research question: What are teachers’ conceptual understandings and affect concerning any transformative learning following a team-based learning experience? Teachers’ stories reveal the affective associations teachers made and are described across the full spectrum of human emotion from fear to joy in their attitudes, values and beliefs, and motivations and transformative learning arising from their professional learning experience. The teachers’ transformative learning experiences unfolded in unique ways and revealed the relationships between action research for professional learning, affective dispositions, and transformative learning. Teachers described a sense of self and shared an overwhelming sense of empowerment from their personal growth and professional achievement attributed to their action research. The evolving theories of transformative learning inform my understanding and interpretation of teachers’ transformative learning and its relation to affect. This research contributes evidence to understand transformative learning through the lens of teachers’ professional learning in teams-based action research. It reveals teachers’ transformative professional learning can occur spontaneously in socially, supported situations created for team-based learning. The research has implications for teachers’ professional learning in the future.
A Cultural Resources Survey of a 6-Mile-Long (22.8-Acre) 69 kV Distribution Line Right-of-Way Between the Webber and Watkins Substations, Johnson Ranch, Pinal County, Arizona
Creators: name: Cogswell, James W.
Publisher: name: Logan Simpson Design, Inc.
Year: 2007
Subjects: subject: Johnson Ranch
valueUri: https://core.tdar.org/browse/geographic-keyword/85982/johnson-ranch
subject: Pinal (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3961/pinal-county
subject: Historic
valueUri: https://core.tdar.org/browse/culture-keyword/25/historic
subject: AZ U:13:254(ASM)
valueUri: https://core.tdar.org/browse/site-name/25306/az-u13254asm
subject: Hunt Highway
valueUri: https://core.tdar.org/browse/site-name/25307/hunt-highway
subject: Road
valueUri: https://core.tdar.org/browse/site-type/299/road
subject: Webber Substation
valueUri: https://core.tdar.org/browse/other-keyword/168888/webber-substation
subject: State Highway to Florence
valueUri: https://core.tdar.org/browse/other-keyword/168891/state-highway-to-florence
subject: Watkins Substation
valueUri: https://core.tdar.org/browse/other-keyword/168889/watkins-substation
subject: Witherspoon Substation
valueUri: https://core.tdar.org/browse/other-keyword/168890/witherspoon-substation
subject: Systematic Survey
valueUri: https://core.tdar.org/browse/investigation-type/12/systematic-survey

description: SRP is planning to construct a 69 kV electrical transmission line between the existing Webber substation and the planned Witherspoon and Watkins substations in the Johnson Ranch area. Logan Simpson Design Inc. conducted a Class III cultural resources survey of the project area. The purpose of the survey was to identify and assess any cultural resources in the parcel prior to construction of the powerline.