cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolution of the Small Magellanic Cloud
Creators: name: Bekki, Kenji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the results of N-body simulations on the last 2.5 Gyr evolution of the Large and Small Magellanic Clouds (LMC and SMC, respectively) interacting with the Galaxy, we firstly show when and where the leading arms (LAs) of the Magellanic stream (MS) can pass through the Galactic plane after the MS formation. We secondly show collisions between the outer Galactic HI disk and the LAs of the MS can create giant HI holes and chimney-like structures in the disk about 0.2 Gyr ago. We thirdly show that a large amount of metal-poor gas is stripped from the SMC and transfered to the LMC during the tidal interaction between the Clouds and the Galaxy about 0.2 and 1.3 Gyr ago. We thus propose that this metal-poor gas can closely be associated with the origin of LMC's young and intermediate-age stars and star clusters with distinctively low-metallicities with [Fe/H] < -0.6.
description: 4 pages, 3 figures, to appear in the proceedings of ``Galaxies in the Local Volume'', Sydney, 8 to 13 July, 2007
The semiconductor-to-ferromagnetic-metal transition in FeSb2
Creators: name: Lukoyanov, A. V.
name: Mazurenko, V. V.
name: Anisimov, V. I.
name: Sigrist, M.
name: Rice, T. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose FeSb2 to be a nearly ferromagnetic small gap semiconductor, hence a direct analog of FeSi. We find that despite different compositions and crystal structures, in the local density approximation with on-site Coulomb repulsion correction (LDA+U) method magnetic and semiconducting solutions for U=2.6 eV are energetically degenerate similar to the case of FeSi. For both FeSb2 and FeSi (FeSi1-xGex alloys) the underlying transition mechanism allows one to switch from a small gap semiconductor to a ferromagnetic metal with magnetic moment 1 muB per Fe ion with external magnetic field.
Factor inhibiting HIF can catalyse two asparaginyl hydroxylations in VNVN motifs of ankyrin fold proteins.
Creators: name: Leissing, Thomas M
name: Hardy, Adam P
name: Chan, Hokfung
name: Wang, Yihua
name: Tumber, Anthony
name: Chowdhury, Rasheduzzaman
name: Feng, Tianshu
name: Coleman, Mathew L
name: Cockman, Matthew E
name: Kramer, Holger B
name: Berridge, Georgina
name: Fischer, Roman
name: Kessler, Benedikt M
name: Ratcliffe, Peter J
name: Lu, Xin
name: Schofield, Christopher J
Publisher: name: The Francis Crick Institute
Year: 2022
Subjects: classificationCode: Biochemistry & Proteomics
subject: Biochemistry & Proteomics
classificationCode: Metabolism
subject: Metabolism
classificationCode: Cell Biology
subject: Cell Biology
classificationCode: Signalling & Oncogenes
subject: Signalling & Oncogenes

description: The aspariginyl-hydroxylase human Factor Inhibiting HIF (FIH) is an important regulator of the transcriptional activity of hypoxia inducible factor (HIF). FIH also catalyses the hydroxylation of asparaginyl and other residues in ankyrin repeat domain (ARD) containing proteins, including apoptosis stimulating of p53 protein (ASPP) family members. ASPP2 is reported to undergo a single FIH catalysed hydroxylation at Asn-986. We report biochemical and crystallographic evidence showing FIH catalyses the unprecedented post-translational hydroxylation of both asparaginyl-residues in "VNVN" and related motifs of ankyrin repeat domains in ASPP proteins (i.e. ASPP1, ASPP2 and iASPP) and the related ASB11 and p18-INK4C proteins. Our biochemical results extend the substrate scope of FIH catalysis and may have implications for its biological roles, including in the hypoxic response and ASPP family function.
The universe out of a breathing bubble
Creators: name: Guendelman, Eduardo I.
name: Sakai, Nobuyuki
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the model of a false vacuum bubble with a thin wall where the surface energy density is composed of two different components, "domain-wall" type and "dust" type, with opposite signs. We find stably oscillating solutions, which we call "breathing bubbles". By decay to a lower mass state, such a breathing bubble could become either i) a child universe or ii) a bubble that "eats up" the original universe, depending on the sign of the surface energy of the "domain-wall" component. We also discuss the effect of the finite-thickness corrections to the thin-wall approximation and possible origins of the energy contents of our model.
description: 12 pages, 5 figures, discussions and 2 figures added, to appear in PRD
Product-limit estimators of the survival function with twice censored data
Creators: name: Patilea, Valentin
name: Rolin, Jean-Marie
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62N01 (Primary) 62G05, 62N02 (Secondary)

description: A model for competing (resp. complementary) risks survival data where the failure time can be left (resp. right) censored is proposed. Product-limit estimators for the survival functions of the individual risks are derived. We deduce the strong convergence of our estimators on the whole real half-line without any additional assumptions and their asymptotic normality under conditions concerning only the observed distribution. When the observations are generated according to the double censoring model introduced by Turnbull, the product-limit estimators represent upper and lower bounds for Turnbull's estimator.
description: Published at http://dx.doi.org/10.1214/009053606000000065 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
INT_1 from Organic agriculture and rural networks in the mountain environments of Região serrana fluminense, Rio de Janeiro, Brazil
Creators: name: Aun, Nádia Jarouche
name: Assis, Renato Linhares De
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: This paper presents a case study on organic agriculture at Região Serrana Fluminense, Rio de Janeiro State, Brazil. We sought to understand what was the role of organic farming, and if it can be considered as an aggregating element between different kinds of people or groups who were located in the same region. The methodology used to carry out this investigation was based on the concept of the rural network, which enabled us to comprehend the articulations and connections that comprise the organic agriculture circuit in the mountains of this specific region.
Pulp fibre waste as a soil amendment : rates of net carbon mineralization
Creators: name: Kranabetter, John Marty
Publisher: name: University of British Columbia
Year: 2010

description: The potential for using RMP (refiner mechanical process) pulp mill fibre waste as a soil amendment was investigated by determining levels of net carbon mineralization. Under optimum conditions (laboratory incubation study), the pulp fibre waste, being a relatively homogeneous substrate, was found to mineralize at one rate of -0.0078 d⁻¹. In field applications the rate of net mineralization was slower, with rates of -0.0034 d⁻¹ and -0.0037 d⁻¹, as determined by soil respiration and litter bag trials, respectively. A loading effect was noted for this amendment, where increasing the levels of application was found to cause decreases in the mineralization rate. Using pulp fibre waste in forest landing rehabilitation appears to increase the levels of microbial activity in the surface horizon. The higher levels of productivity should lead to improvements in soil structure, and would be a better alternative to only tilling and fertilizing the soil.
Chatter avoidance in milling
Creators: name: Chan, Philip K. F.
Publisher: name: University of British Columbia
Year: 2010

description: One of the major limitations on productivity in metal cutting is chatter. Chatter is a form of unstable self-excited vibration which causes poor surface finish, as well as cutter and machine tool damage. The investigation of chatter suppression in milling using continuously variable spindle speed is presented in this thesis. The fundamental mechanism in regenerative chatter is due to favorable phasing between the inner and outer modulations on the chip thickness. In this thesis, the spindle speed is sinusoidally varied to prevent the dynamic cutting process from locking on to a constant phase shift and causing unstable cutting, or chatter. Because of the nonlin-earities and complexities of the process, time domain simulation of the dynamic cutting process has been modelled. The influence of various parameters, such as axial depth of cut, process damping from flank interference, and amplitude and frequency of speed variation have been investigated using the simulation model. The trends predicted by simulation results have been experimentally verified using cutting tests on a milling machine. It has been concluded from simulation and milling tests that a variable spindle speed can partially increase the chatter limit, but can never totally prevent chatter. The variable spindle speed strategy is incorporated into a proposed in-process chatter detection and avoidance algorithm. The milling process is monitored using the sound pressure signal measured by a microphone. When the amplitude of the sound spectrum near the natural frequency exceeds a threshold value, chatter has been detected and the spindle speed is oscillated until stability is regained. The proposed algorithm is implemented on line and experimental results are presented.
Shearwater Field, managing changing uncertainties through field life
Creators: name: GILHAM, R.
name: HERCUS, C.
name: EVANS, A.
name: DE HAAS, W.
Publisher: name: Geological Society of London
Year: 2021
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Development of the Shearwater structure, a deep gas-condensate accumulation in the HPHT region of the UKCS, began in 1997 with the initial of development drilling and construction of topside facilities. Field sanction was based on an understanding and modelling of key subsurface uncertainties. Development experience since that date has tested that initial subsurface view and helped constrain many of the initial pre-development uncertainties. The displayed core illustrates several of the pre-development uncertainties: (1) depositional and diagenetic controls on reservoir quality potential vertical compartmentalisation by dolomite cements; (2) potential lateral compartmentalisation by sealing sand-sand faults; (3) potential pore volume reduction by early oil stain.
INT_3 from Organic agriculture and rural networks in the mountain environments of Região serrana fluminense, Rio de Janeiro, Brazil
Creators: name: Aun, Nádia Jarouche
name: Assis, Renato Linhares De
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: This paper presents a case study on organic agriculture at Região Serrana Fluminense, Rio de Janeiro State, Brazil. We sought to understand what was the role of organic farming, and if it can be considered as an aggregating element between different kinds of people or groups who were located in the same region. The methodology used to carry out this investigation was based on the concept of the rural network, which enabled us to comprehend the articulations and connections that comprise the organic agriculture circuit in the mountains of this specific region.
INT_2 from Organic agriculture and rural networks in the mountain environments of Região serrana fluminense, Rio de Janeiro, Brazil
Creators: name: Aun, Nádia Jarouche
name: Assis, Renato Linhares De
Publisher: name: The Royal Society
Year: 2021
Subjects: Environmental Science

description: This paper presents a case study on organic agriculture at Região Serrana Fluminense, Rio de Janeiro State, Brazil. We sought to understand what was the role of organic farming, and if it can be considered as an aggregating element between different kinds of people or groups who were located in the same region. The methodology used to carry out this investigation was based on the concept of the rural network, which enabled us to comprehend the articulations and connections that comprise the organic agriculture circuit in the mountains of this specific region.
Bone-implant interface. Evaluation of osteoblastic cells behavior on nanopatterned titanium surfaces: an in vitro analysis
Creators: name: Parisi, Candida <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: MED/28 Malattie odontostomatologiche

description: Protein-adsorption occurs immediately following implantation of biomaterials.  It is unknown at which extent protein-adsorption impacts the cellular events at bone-implant interface. 
To investigate this question, we compared the in-vitro outcome of osteoblastic cells grown onto titanium substrates and glass as control, by modulating the exposure to serum-derived proteins.
Substrates consisted of 1) polished titanium disks; 2) polished disks nanotextured with H2SO4/H2O2; 3) glass. In the pre-adsorption phase, substrates were treated for 1h with αMEM alone (M-noFBS) or supplemented with 10%-foetal-bovine-serum (M-FBS). 
MC3T3-osteoblastic-cells were cultured on the pre-treated substrates for 3h and 24h, in M-noFBS and M-FBS. Subsequently, the culture medium was replaced with M-FBS and cultures maintained for 3 and 7days. Cell-number was evaluated by: Alamar-Blue and MTT assay.
Mitotic- and osteogenic-activities were evaluated through fluorescence-optical-microscope by immunolabeling for Ki-67 nuclear-protein and Osteopontin. Cellular morphology was evaluated by SEM-imaging.
Data were statistically analyzed using ANOVA-test, (p<0.05).
At day3 and day7, the presence or absence of serum-derived proteins during the pre-adsorption phase had not significant effect on cell-number. Only the absence of FBS during 24h of culture significantly affected cell-number (p<0.0001). Titanium surfaces performed better than glass, (p<0.01). 
The growth rate of cells between day3 and 7 was not affected by the initial absence of FBS. Immunolabeling for Ki-67 and Osteopontin showed that the mitotic- and osteogenic- activity were ongoing at 72h.
SEM-analysis revealed that the absence of FBS had no major influence on cell-shape.
•	Physico-chemical interactions without mediation by proteins are sufficient to sustain the initial phase of culture and guide osteogenic-cells toward differentiation.
•	The challenge is avoiding adsorption of  ‘undesirables’ molecules that negatively impact on the cueing cells receive from surface. This may not be a problem in healthy patients, but may have an important role in medically-compromised-individuals in whom the composition of tissue-fluids is altered.
Information gain in quantum continual measurements
Creators: name: Barchielli, Albert
name: Lupieri, Giancarlo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Inspired by works on information transmission through quantum channels, we propose the use of a couple of mutual entropies to quantify the efficiency of continual measurement schemes in extracting information on the measured quantum system. Properties of these measures of information are studied and bounds on them are derived.
A boundedness result for toric log Del Pezzo surfaces
Creators: name: Dais, Dimitrios I.
name: Nill, Benjamin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14M25, 14J26, 14Q10 (Primary) 15B20 (Secondary)

description: In this paper we give an upper bound for the Picard number of the rational surfaces which resolve minimally the singularities of toric log Del Pezzo surfaces of given index $\ell$. This upper bound turns out to be a quadratic polynomial in the variable $\ell$.
description: 10 pages; final version (typos corrected, references updated)
Shearwater Field, managing chaning uncertainties through field life
Creators: name: GILHAM, R.
name: HERCUS, C.
name: EVANS, A.
name: DE HAAS, W.
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Development of the Shearwater structure, a deep gas-condensate accumulation in the HPHT region of the UKCS, began in 1997 with the initial of development drilling and construction of topside facilities. Field sanction was based on an understanding and modelling of key subsurface uncertainties. Development experience since that date has tested that initial subsurface view and helped constrain many of the initial pre-development uncertainties. The displayed core illustrates several of the pre-development uncertainties: (1) depositional and diagenetic controls on reservoir quality potential vertical compartmentalisation by dolomite cements; (2) potential lateral compartmentalisation by sealing sand-sand faults; (3) potential pore volume reduction by early oil stain.
Optimal protocols for minimal work processes in underdamped stochastic thermodynamics
Creators: name: Gomez-Marin, Alex
name: Schmiedl, Tim
name: Seifert, Udo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: For systems in an externally controllable time-dependent potential, the optimal protocol minimizes the mean work spent in a finite-time transition between two given equilibrium states. For overdamped dynamics which ignores inertia effects, the optimal protocol has been found to involve jumps of the control parameter at the beginning and end of the process. Including the inertia term, we show that this feature not only persists but that even delta peak-like changes of the control parameter at both boundaries make the process optimal. These results are obtained by analyzing two simple paradigmatic cases: First, a Brownian particle dragged by a harmonic optical trap through a viscous fluid and, second, a Brownian particle subject to an optical trap with time-dependent stiffness. These insights could be used to improve free energy calculations via either thermodynamic integration or "fast growth" methods using Jarzynski's equality.
description: published in J. Chem. Phys.: http://link.aip.org/link/?JCPSA6/129/024114/1
The rational parts of one-loop QCD amplitudes II: The five-gluon case
Creators: name: Su, Xun
name: Xiao, Zhi-Guang
name: Yang, Gang
name: Zhu, Chuan-Jie
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The rational parts of 5-gluon one-loop amplitudes are computed by using the newly developed method for computing the rational parts directly from Feynman integrals. We found complete agreement with the previously well-known results of Bern, Dixon and Kosower obtained by using the string theory method. Intermediate results for some combinations of Feynman diagrams are presented in order to show the efficiency of the method and the local cancellation between different contributions.
description: 25 pages, 16 figures and LaTeX file; minor corrections, references added, to be published in Nucl. Phys. B
The Disjointed Thermodynamics of Rotating Black Holes With a NUT Twist
Creators: name: Ghezelbash, A. M.
name: Mann, R. B.
name: Sorkin, Rafael D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the solutions of the Euclidean-signature Einstein equations (gravitational instantons) whose line-element takes the Kerr-bolt form, characterized by three real parameters: a size, a NUT charge, and a spin rate. The exclusion of singularities eliminates most combinations of these parameters, leaving only separated solution-manifolds between which continuous transitions are impossible (The angular velocity divided by the temperature is forced to be a rational multiple of $2π$). This ``quantization'' prevents the free variations presupposed by an equation like $T dS=dM + ΩdJ$, and thereby renders the first law true, false, meaningless, or tautological, depending on how one approaches it.
description: 26 pages, 3 figures
Emergent Quantum Mechanics and Emergent Symmetries
Creators: name: Hooft, Gerard 't
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Quantum mechanics is 'emergent' if a statistical treatment of large scale phenomena in a locally deterministic theory requires the use of quantum operators. These quantum operators may allow for symmetry transformations that are not present in the underlying deterministic system. Such theories allow for a natural explanation of the existence of gauge equivalence classes (gauge orbits), including the equivalence classes generated by general coordinate transformations. Thus, local gauge symmetries and general coordinate invariance could be emergent symmetries, and this might lead to new alleys towards understanding the flatness problem of the Universe.
description: 10 pages, 1 figure. Presented at PASCOS 13, Imperial College, London, July 6, 2007
Spectrum of the supersymmetric t-J model with non-diagonal open boundaries
Creators: name: Galleas, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this work we diagonalize the double-row transfer matrix of the supersymmetric t-J model with non-diagonal boundary terms by means of the algebraic Bethe ansatz. The corresponding reflection equations are studied and two distinct classes of solutions are found, one diagonal solution and other non-diagonal. In the non-diagonal case the eigenvalues in the first sectors are given for arbitrary values of the boundary parameters.
description: 22 pages
Strict weak mixing of some C*-dynamical systems based on free shifts
Creators: name: Fidaleo, Francesco
name: Mukhamedov, Farrukh
Publisher: name: arXiv
Year: 2006
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 37A30, 46L55, 60J99, 20E06

description: We define a stronger property than unique ergodicity with respect to the fixed-point subalgebra previously investigated by Abadie and Dykema. Such a property is denoted as F-strict weak mixing (F stands for the Markov projection onto the fixed-point operator system). Then we show that the free shifts on the reduced C*-algebras of RD-groups, including the free group on infinitely many generators, and amalgamated free product C*-algebras, considered by Abadie and Dykema, are all strictly weak mixing and not merely uniquely ergodic.
description: 10 pages
Autobiographical Numbers
Creators: name: Khovanova, Tanya
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 11Y55, 97A20

description: I introduce autobiographical numbers as defined in A046043 (see Online Encyclopedia of Integer Sequences). I continue by defining and analyzing biographies, curricula vitae and complete life stories of numbers. I end with the definition of mutually-praising number pairs.
description: 8 pages
Dynamics and control of an orbiting space platform based mobile flexible manipulator
Creators: name: Chan, Julius Koi Wah
Publisher: name: University of British Columbia
Year: 2010

description: This paper presents a Lagrangian formulation for studying the dynamics and control of the proposed Space Station based Mobile Servicing System (MSS) for a particular case of in plane libration and maneuvers. The simplified case is purposely considered to help focus on the effects of structural and joint flexibility parameters of the MSS on the complex interactions between the station and manipulator dynamics during slewing and translational maneuvers. The response results suggest that under critical combinations of parameters, the system can become unstable. During maneuvers, the deflection of the MSS can become excessive, leading to positioning error of the payload. At the same time the libration error can also be significant. A linear quadratic regulator is designed to control the deflection of the manipulator and maintain the station at its operating configuration.
The rational parts of one-loop QCD amplitudes III: The six-gluon case
Creators: name: Xiao, Zhi-Guang
name: Yang, Gang
name: Zhu, Chuan-Jie
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The rational parts of 6-gluon one-loop amplitudes with scalars circulating in the loop are computed by using the newly developed method for computing the rational parts directly from Feynman integrals. We present the analytic results for the two MHV helicity configurations: $(1^-2^+3^+4^-5^+6^+)$ and $(1^-2^+3^-4^+5^+6^+)$, and the two NMHV helicity configurations: $(1^-2^-3^+4^-5^+6^+)$ and $(1^-2^+3^-4^+5^-6^+)$. Combined with the previously computed results for the cut-constructible part, our results are the last missing pieces for the complete partial helicity amplitudes of the 6-gluon one-loop QCD amplitude.
description: 52 pages, 38 figures and LaTeX file. Codes are available up request; minor corrections, references added, to be published in Nucl. Phys. B
Selective amplification of scars in a chaotic optical fiber
Creators: name: Michel, Claire
name: Doya, Valérie
name: Legrand, Olivier
name: Mortessagne, Fabrice
Publisher: name: arXiv
Year: 2007
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this letter we propose an original mechanism to select scar modes through coherent gain amplification in a multimode D-shaped fiber. More precisely, we numerically demonstrate how scar modes can be amplified by positioning a gain region in the vicinity of specific points of a short periodic orbit known to give rise to scar modes.
Relation between chiral symmetry breaking and confinement in YM-theories
Creators: name: Synatschke, Franziska
name: Wipf, Andreas
name: Langfeld, Kurt
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spectral sums of the Dirac-Wilson operator and their relation to the Polyakov loop are thoroughly investigated. The approach by Gattringer is generalized to mode sums which reconstruct the Polyakov loop locally. This opens the possibility to study the mode sum approximation to the Polyakov loop correlator. The approach is re-derived for the ab initio continuum formulation of Yang-Mills theories, and the convergence of the mode sum is studied in detail. The mode sums are then explicitly calculated for the Schwinger model and SU(2) gauge theory in a homogeneous background field. Using SU(2) lattice gauge theory, the IR dominated mode sums are considered and the mode sum approximation to the static quark anti-quark potential is obtained numerically. We find a good agreement between the mode sum approximation and the static potential at large distances for the confinement and the high temperature plasma phase.
description: 17 pages, 10 figures, typos corrected, references added, final version to appear in PRD
IL PROCESSO DI TRASFORMAZIONE ED EVOLUZIONE STORICO-GIURIDICA DEI DIRITTI DI GENERE: DALLA TRADIZIONE DI DIRITTO ROMANO AL DIRITTO CIVILE ITALIANO
Creators: name: Guccione, Lia
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: 1. Premessa. – 2. Condizione giuridica e presunta debolezza della donna nel diritto romano. – 3. La tutela mulierum: il criterio giustificativo della levitas animi. – 4. La funzione storica della tutela. – 5. Chi è il soggetto di diritto nel diritto romano e nel diritto moderno? Profili di comparazione giuridica. – 6. La tradizione di diritto romano contro gli articoli 1 e 2 del codice civile italiano
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
“Datemi quattro milioni di scudi e restituirò Costantinopoli alla cristianità”. Il Discorso sullo stato presente del Turco et modi di fargli una guerra reale. Un piano di guerra del 1585
Creators: name: Brunelli, Michele
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: Having resisted several sieges during its millenary history, the capital of the remaining Byzantine Empire fell in the hands of the Ottoman Turks. The announcement took one month to reach Venice, nine days after Pope Nicholas V was informed. The loss of Constantinople was a shock for the Christendom. If the recapture of Jerusalem represented a Leitmotif during centuries, the conquest of Constantinople in 1453 was another similar dream to be pursued. However, the enmity between the two shores of the Mediterranean Sea was also fuelled by three successive wars against the Turks fought by Venice and by the utopian religious-political ambitions of Sixtus V, which included the conquest of Egypt, the annihilation of the Ottoman Empire and thus the transport of the Holy sepulchre to Italy. In this context a high Venetian prelate, Maffìo Venier, in 1585, elaborated an articulated plan to bring Constantinople under the Christian rule. In this document, Venier, representing not only the Venetian aristocracy, but especially the Renaissance militant clergy, analyses the weaknesses of the Ottoman army, suggests the essential steps to be taken to prepare Western armies to go to war; meticulously calculates the costs of the war and describes the strategy to be applied. As far as I know, this curious pamphlet has never been presented, commented or published before, with the exception of the 1598 edition of the Trésor Politique, and of a coeval French translation (1608). This paper provides a contribution to the historical study of military history and of the XVI century East-West international relations
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
La Compagnie des Indes au Deccan (1746-1783) : le rôle de Charles de Bussy
Creators: name: Vaghi, Massimiliano
Publisher: name: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS)
Year: 2019

description: La rivalité politique et économique franco-anglaise au XVIIIe siècle a été une rivalité mondiale, qui a concerné les Indes, tant Occidentales qu’Orientales[1]. Pendant la guerre de Sept Ans, une sorte de première guerre mondiale a éclatée, de l’Amérique jusqu’à l’Asie sud-orientale. Pour ce qui concerne, en particulier, le scénario colonial du sous-continent et de l’océan indien, le conflit entre la France, la Grande-Bretagne et les potentats indiens, commencé par l’éclatement de la guerre de Succession d'Autriche, se terminera seulement après la paix de 1783 (ou, plus précisément, après les guerres de la Révolution et de Napoléon)[2]. [1] Voir, en général : Doohwan Ahn, « The Anglo-French Treaty of Utrecht of 1713 Revisited : The Politics of Rivalry and Alliance », dans Antonella Alimento et Koen Stapelbroek (dir.), The Politics of Commercial Treaties in the Eighteenth Century: Balance of Power, Balance of Trade, London-New York, Palgrave Macmillan, 2017, p. 125-150 ; Frederik Dhondt, Balance of Power and Norm Hierarchy : Franco-British Diplomacy after the Peace of Utrecht, Nijhoff, Brill, 2015 ; François Ternat, Partager le monde : rivalités impériales franco-britanniques, 1748-1756, Paris, PUPS, 2015 ; Bernard Gainot, L’empire colonial français de Richelieu à Napoléon : 1630-1810, Paris, Colin, 2015 ; Françios Crouzet, La guerre économique franco-anglaise au XVIIIe siècle, Paris, Fayard, 2008. Voir aussi, en ce qui concerne le sous-continent indien : Massimiliano Vaghi, La France et l’Inde. Commerces et politique impériale au XVIIIe siècle, [Paris], Éditions Mimésis, 2016 ; Simon Davies, Daniel Sanjiv Roberts et Gabriel Sánchez Espinosa (dir.), India and Europe in the Global Eighteenth Century, Oxford, Voltaire Foundation, 2014. [2] À ce propos, pour une première introduction, voir : Massimiliano Vaghi, « Le souvenir d’une ‘épopée glorieuse’ », La Révolution française [En ligne], 8-2015, mis en ligne le 24 juin 2015, consulté le 06 avril 2018 (URL : http://journals.openedition.org/lrf/1246).
description: Nuovi Autoritarismi e Democrazie: Diritto, Istituzioni, Società (NAD-DIS), V. 1, N. 1 (2019)
A necessary condition for existence of S-matrix outside perturbation theory
Creators: name: Stoyanovsky, A. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the Maslov--Shvedov method of complex germ, we show that quantum field theory S-matrix can exist outside perturbation theory in the principal order of quasiclassical approximation only under the condition that the tangent symplectic transformation to the evolution operator of non-linear classical field equation is unitarily implementable in the Fock space. However, the results of Maslov--Shvedov's book imply that this condition is seemingly always satisfied.
description: 6 pages, revised version
Analytical model of the response of a superconducting film to line currents
Creators: name: Mawatari, Yasunori
name: Clem, John R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the response of a superconducting film to line currents flowing in linear wires placed above the film, and we present analytic expressions for the magnetic-field and current distributions based on the critical state model. The behavior of the superconducting film is characterized by the sheet-current density $K_z$, whose magnitude cannot exceed the critical value $j_cd$, where $j_c$ is the critical current density and $d$ is the thickness of the film. When the transport current $I_0$ flowing in the wire is small enough, $|K_z|$ is smaller than $j_cd$ and the magnetic field is shielded below the film. When $I_0$ exceeds a threshold value $I_{c0}\propto j_cd$, on the other hand, $|K_z|$ reaches $j_cd$ and the magnetic field penetrates below the film. We also calculate the ac response of the film when an ac transport current flows in the linear wires.
description: 12pages, 7 figures, accepted for publication in Phys. Rev. B
An illustration and analysis of the degeneracy in the search for the leptonic CP-violating angle and the neutrino mass hierarchy
Creators: name: Koike, Masafumi
name: Saito, Masako
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Determination of the value of the leptonic CP-violating phase deltaand the neutrino mass hierarchy sgn(dm2_31) through long baselineneutrino oscillation experiments is systematically analyzed. We notethat the two oscillation spectra are difficult to discriminate andlead to the degeneracy when they are peaked at the same energy andhave the same peak probability. The condition of peak-matching istherefore introduced as a criterion for the presence of degeneracy.The matching of peaks is visualized as an intersection of trajectoriestraced by the peak of an oscillation spectrum while the value of deltais varied from 0 to 2pi. We numerically calculate a pair oftrajectories for a pair of hierarchies and examine the degeneracy,especially that concerning the hierarchy. We formulate the trajectoryin terms of analytic expressions and evaluate the critical length,which is shown to be proportional to 1/sin(theta_13). In view of ouranalysis, we discuss future prospects to solve the hierarchydegeneracy with regard to the following four approaches: elongatingthe baseline length sufficiently, using both neutrinos andanti-neutrinos, combining experiments with different baseline lengths,and observing two or more oscillation peaks.
description: PTPTeX, 23 pages, 11 figures. Minor updates in accordance with the published version
CARACTERIZACIÓN GENÉTICA DE Hoplias Malabaricus (CHARACIFORMES) EN EL RIO SAN JORGE, COLOMBIA
Creators: name: Useche, Yerly M.
name: Burbano, Consuelo
Publisher: name: Zenodo
Year: 2021
Subjects: microsatellite markers
heterozygosity
gene flow
genetic distance,
conservation

description: Overfishing in the San Jorge River region for catfish and Hoplias malabaricus, the next most important fish, has led to a decline in their populations. H. malabaricus does not present reproductive migration, staying in the swamps, increasing the fishing pressure on the species. The genetic characterization of the H. malabaricus populations makes it possible to establish the conservation status or its possibility of extinction. The genetic evaluation was carried out using microsatellites amplified with heterologous primers with 62 to 95% polymorphism, sufficiently informative for genetic-population analysis. The H. malabaricus populations presented high genetic variability (high heterozygosity), a sign of conservation in the studied localities. The H. malabaricus population presented a high structure and low gene flow, such that there are three subpopulations: Ayapel, San Marcos, and San Benito, the only locations where the species was found. Although the high heterozygosities show that the local populations are not in a process of inbreeding (increased risk of disappearance), the increase in pressure on this species can lead to its extinction. Therefore, studies of fishing biology and population dynamics should be carried out in the three localities to establish adequate management of the populations.
Two--Loop Massive Operator Matrix Elements for Unpolarized Heavy Flavor Production to $O(ε)
Creators: name: Bierenbaum, Isabella
name: Blümlein, Johannes
name: Klein, Sebastian
name: Schneider, Carsten
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We calculate the $O(α_s^2)$ massive operator matrix elements for the twist--2 operators, which contribute to the heavy flavor Wilson coefficients in unpolarized deeply inelastic scattering in the region $Q^2 \gg m^2$, up to the $O(ε)$ contributions. These terms contribute through the renormalization of the $O(α_s^3)$ heavy flavor Wilson coefficients of the structure function $F_2(x,Q^2)$. The calculation has been performed using light--cone expansion techniques without using the integration-by-parts method. We represent the individual Feynman diagrams by generalized hypergeometric structures, the $ε$--expansion of which leads to infinite sums depending on the Mellin variable $N$. These sums are finally expressed in terms of nested harmonic sums using the general summation techniques implemented in the {\tt Sigma} package.
description: 42 papges, 2 style files, 3 figures
How to design multi-target drugs: Target search options in cellular networks
Creators: name: Korcsmaros, Tamas
name: Szalay, Mate S.
name: Bode, Csaba
name: Kovacs, Istvan A.
name: Csermely, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: Despite improved rational drug design and a remarkable progress in genomic, proteomic and high-throughput screening methods, the number of novel, single-target drugs fell much behind expectations during the past decade. Multi-target drugs multiply the number of pharmacologically relevant target molecules by introducing a set of indirect, network-dependent effects. Parallel with this the low-affinity binding of multi-target drugs eases the constraints of druggability, and significantly increases the size of the druggable proteome. These effects tremendously expand the number of potential drug targets, and will introduce novel classes of multi-target drugs with smaller side effects and toxicity. Here we review the recent progress in this field, compare possible network attack strategies, and propose several methods to find target-sets for multi-target drugs.
description: 12 pages, 3 figures, 1 table
Photon-assisted spin transport in a two-dimensional electron gas
Creators: name: Fistul, M. V.
name: Efetov, K. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study spin-dependent transport in a two-dimensional electron gas subject to an external step-like potential $V(x)$ and irradiated by an electromagnetic field (EF). In the absence of EF the electronic spectrum splits into spin sub-bands originating from the "Rashba" spin-orbit coupling. We show that the resonant interaction of propagating electrons with the component EF parallel to the barrier induces a \textit{% non-equilibrium dynamic gap} $(2Δ_{R})$ between the spin sub-bands. Existence of this gap results in coherent spin-flip processes that lead to a spin-polarized current and a large magnetoresistance, i.e the spin valve effect. These effects may be used for controlling spin transport in semiconducting nanostructures, e.g. spin transistors, spin-blockade devices etc., by variation of the intensity S and frequency $ω$ of the external radiation.
description: extended version accepted in the Physical Review B, corrected typos, 5 pages, 3 new figures
Observation of non-classical rotational inertia in bulk solid 4He
Creators: name: Kondo, Motoshi
name: Takada, Shunichi
name: Shibayama, Yoshiyuki
name: Shirahama, Keiya
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In recent torsional oscillator experiments by Kim and Chan (KC), a decrease of rotational inertia has been observed in solid 4He in porous materials and in a bulk annular channel. This observation strongly suggests the existence of "non-classical rotational inertia" (NCRI), i.e. superflow, in solid 4He. In order to study such a possible "supersolid" phase, we perform torsional oscillator experiments for cylindrical solid 4He samples. We have observed decreases of rotational inertia below 200 mK for two solid samples (pressures P = 4.1 and 3.0 MPa). The observed NCRI fraction at 70 mK is 0.14 %, which is about 1/3 of the fraction observed in the annulus by KC. Our observation is the first experimental confirmation of the possible supersolid finding by KC.
description: 6 pages, 3 firures, submitted to J. Low Temp. Phys. (Proceedings of QFS2006)
Distributed bit-parallel architecture and algorithms for early vision
Creators: name: Bolotski, Michael
Publisher: name: University of British Columbia
Year: 2010

description: A new form of parallelism, distributed bit-parallelism, is introduced. A distributed bit-parallel organization distributes each bit of a data item to a different processor. Bit-parallelism allows computation that is sub-linear with word size for such operations as integer addition, arithmetic shifts, and data moves. The implications of bit-parallelism for system architecture are analyzed. An implementation of a bit-parallel architecture based on a mesh with bypass network is presented. The performance of bit-parallel algorithms on this architecture is analyzed and found to be several times faster than bit-serial algorithms. The application of the architecture to low level vision algorithms is discussed.
Social inertia and diversity in collaboration networks
Creators: name: Ramasco, Jose J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Random graphs are useful tools to study social interactions. In particular, the use of weighted random graphs allows to handle a high level of information concerning which agents interact and in which degree the interactions take place. Taking advantage of this representation, we recently defined a magnitude, the Social Inertia, that measures the eagerness of agents to keep ties with previous partners. To study this magnitude, we used collaboration networks that are specially appropriate to obtain valid statistical results due to the large size of publically available databases. In this work, I study the Social Inertia in two of these empirical networks, IMDB movie database and condmat. More specifically, I focus on how the Inertia relates to other properties of the graphs, and show that the Inertia provides information on how the weight of neighboring edges correlates. A social interpretation of this effect is also offered.
description: 5 pages, 2 figures, proc. Workshop on Complex Systems, Santander Spain, To appear in EPJ B
Role of WNT1-inducible signaling pathway protein-1 (WISP1) in liver injury
Creators: name: González Leiva, Daniela Fernanda
Publisher: name: Technische Universität Dortmund
Year: 2020
Subjects: subject: WISP1
subject: Liver
subject: Migration
subject: HSC
subject: ECM
subject: Collagen
subject: CCl4
subject: 540
subject: 570
subject: Leber
subject: Lebererkrankung

description: Liver diseases are a global burden and a better understanding of factors controlling disease progression is required. In the last decade, much progress has been achieved in understanding the relevance of the extracellular matrix. Alterations in this dynamic structure can either facilitate or impair the repair of damaged liver tissue. Therefore, matricellular proteins of the CCN family, have emerged as new targets in liver pathophysiology. These highly conserved secreted proteins specifically interact with and signal through various extracellular partners, like integrins, which enable them to play crucial roles in various processes including development, wound healing and diseases such as cancer and fibrosis. We have discovered that WISP1 (Wnt1-inducible signaling pathway protein-1) also named CCN4, is induced upon CCl4-induced liver damage and may play an important role in the remodeling process of the extracellular matrix. Therefore, the aims were to identify the cell type that produces WISP1, to study its influence in cell migration and to use WISP1 KO mice to understand its role in the pathogenesis of liver fibrosis. Isolation of individual liver cell types and quantification of WISP1 expression and secretion showed a higher mRNA expression and TGF-β-induced secretion of WISP1 in non-parenchymal cells, especially in stellate cells compared to hepatocytes. Furthermore, WISP1 facilitated the migration of isolated mouse hepatic stellate cells through collagen lattices, suggesting the interaction of WISP1 with one of the main components of the extracellular matrix and affecting its architecture. Additionally, gene expression analysis and Sirius Red staining showed differences in the development of CCl4-induced fibrosis between WISP1 wild type and knockout mice. Upregulation of collagen type I and α-SMA is reduced in WISP1 KO mice and less collagen deposition is also observed. In conclusion, WISP1 is mainly expressed and secreted by stellate cells which may influence their migration upon liver injury and consequently, ameliorating the degree of liver fibrosis.