cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Parallel actin monomers in the 8S complex of actin–INF2
Creators: name: Das, Sanchaita
name: Zhang, Zixin
name: Kalvakota, Saichandra
name: Soto, Raul
name: Phillips, Martin L.
name: Terman, Jonathan R.
name: Reisler, Emil
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Polymerization and depolymerization of actin play an essential role in eukaryotic cells. Actin exists in cells in both monomeric (G-actin) and filamentous (polymer, F-actin) forms. Actin binding proteins (ABPs) facilitate the transition between these two states, and their interactions with these two states of actin are critical for actin-based cellular processes. Rapid depolymerization of actin is assisted in the brain and/or other cells by its oxidation by the enzyme Mical (yielding Mox-actin), and/or by the binding of Inverted Formin 2 (INF2) – which can also accelerate filaments formation. At their stoichiometric molar ratio INF2 and actin yield the 8S complex (consisting of 4 actin monomers: 2 INF2 dimer molecules). Using biochemical and biophysical methods, we investigate the structural arrangement of actin in the 8S particles and the interaction of INF2 with actin and Mox-actin. To that end, we show 2 D class averages of 8S particles obtained by negative staining electron microscopy. We also show that: (i) 8S particles can seed rapid actin assembly; (ii) Mox-actin and INF2 form 8S particles at proteins ratios similar to those of unoxidized actin; (iii) chemical crosslinkings suggest that actin monomers are in a parallel orientation in the 8S particles of both actin and Mox-actin; and (iv) INF2 accelerates the disassembly of Mox-F-actin. Our results provide better understanding of actin's arrangement in the 8S particles formed during actin depolymerization and in the early polymerization stages of both actin and Mox-actin. Communicated by Ramaswamy H. Sarma
Wide-field multi-color photometry of the Galactic globular cluster NGC 1261
Creators: name: Kravtsov, V.
name: Alcaino, G.
name: Marconi, G.
name: Alvarado, F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: (Abriged)This work studies in more detail the stellar population, including its photometric properties and characteristics, in the rarely studied southern Galactic globular cluster NGC 1261. We focus on the brighter sequences of the cluster's color-magnitude diagram (CMD). Like in our previous works, we rely upon photometry in several passbands to achieve more reliable results and conclusions. We carried out and analyzed new multi-color photometry of NGC 1261 in UBVI reaching below the turnoff point in all passbands in a fairly extended cluster field, about 14'x14'. We found several signs of the inhomogeneity ("multiplicity") in the stellar population. The most prominent of them are: (1) the dependence of the radial distribution of sub-giant branch (SGB) stars in the cluster on their U magnitude, with brighter stars less centrally concentrated at the 99.9 \% level than their fainter counterparts; (2) the dependence of the location of red giant branch (RGB) stars in the U-(U-B) CMD on their radial distance from the cluster center, with the portion of stars bluer in the (U-B) color increasing towards the cluster outskirts. Additionally, the radial variation of the RGB luminosity function in the bump region is suspected. We assume that both the SGB stars brighter in the U and the RGB stars bluer in the (U-B) color are probably associated with blue horizontal branch stars, because of a similarity in their radial distribution in the cluster. We estimated the metalicity of NGC 1261 from the slope of the RGB in U-based CMDs and the location of the RGB bump on the branch. These metallicity indicators give [Fe/H]zw = -1.34 +/- 0.16 dex and [Fe/H]zw = -1.41 +/- 0.10 dex, respectively. We isolated 18 probable blue straggler candidates. They are more centrally concentrated than the lower red giants of comparable brightness at the 97.9 \% level.
description: 8 pages, 9 figures, accepted for publication in A&A
The melting and abundance of open charm hadrons
Creators: name: Bazavov, A.
name: Ding, H.-T.
name: Hegde, P.
name: Kaczmarek, O.
name: Karsch, F.
name: Laermann, E.
name: Maezawa, Y.
name: Mukherjee, Swagato
name: Ohno, H.
name: Petreczky, P.
name: Schmidt, C.
name: Sharma, S.
name: Söldner, Wolfgang
name: Wagner, M.
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: 530 Physik

description: Ratios of cumulants of conserved net charge fluctuations are sensitive to the degrees of freedom that are carriers of the corresponding quantum numbers in different phases of strong interaction matter. Using lattice QCD with 2+1 dynamical flavors and quenched charm quarks we calculate second and fourth order cumulants of net charm fluctuations and their correlations with other conserved charges such as net baryon number, electric charge and strangeness. Analyzing appropriate ratios of these cumulants we probe the nature of charmed degrees of freedom in the vicinity of the QCD chiral crossover region. We show that for temperatures above the chiral crossover transition temperature, charmed degrees of freedom can no longer be described by an uncorrelated gas of hadrons. This suggests that the dissociation of open charm hadrons and the emergence of deconfined charm states sets in just near the chiral crossover transition. Till the crossover region we compare these lattice QCD results with two hadron resonance gas models --including only the experimentally established charmed resonances and also including additional states predicted by quark model and lattice QCD calculations. This comparison provides evidence for so far unobserved charmed hadrons that contribute to the thermodynamics in the crossover region.
Dwelling, Dispossession, and “Slow Violence” in the Time of Climate Change
Creators: name: Pilia, Nicola
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

In this essay, I will analyse the crucial issues of dwelling and dispossession concerning refugees in the novel The Hungry Tide by Amitav Ghosh. Political and environmental displacement is addressed within the framework of ‘slow violence’ as proposed by the landmark work of Rob Nixon, Slow Violence and the Environmentalism of the Poor (2011). With the intention to define the Morichjhãpi refugees as a foreshadowing of the climate migrations involving the lives of the subalterns in South Asia, as argued by Brandon Jones (2018), the essay provides a historical background of the Morichjhãpi Massacre and studies the forced eviction narrated in the novel through the pages of Nirmal’s diary. Together with Kusum, the Marxist professor experiences the tragedy of the subalterns in the ever-changing ecosystem of the Sundarbans, bridging the gap between environmental and postcolonial categories while providing fruitful insights within the notions of human history and ecological deep time.

description: Il Tolomeo
title: "Gruppo di fontana con pescatori e pastori", arte romana, inv. CVIIa (ITA/EN)
title: Scheda catalogo digitale Borghese
titleType: AlternativeTitle
Creators: name: Clementi, Jessica
name: Galleria Borghese
Publisher: name: Galleria Borghese
Year: 2024

description: Pubblicazione delle schede delle opere conservate nel museo ed estratte dal catalogo digitale di

Galleria Borghese, nelle due versioni esistenti online, in italiano e inglese.

Collegamento al catalogo digitale:

ITA: https://www.collezionegalleriaborghese.it/

EN: https://www.collezionegalleriaborghese.it/en
Developments of corey-fuchs reaction in organic and total synthesis of natural products
Creators: name: Mommahed Heravi, Majid
name: Asadi, Shima
name: Nazari, Niousha
name: Lashkariani, Boshra Malekzadeh
Publisher: name: figshare
Year: 2022
Subjects: subject: 30302 Nanochemistry and Supramolecular Chemistry
subject: FOS: Chemical sciences
subject: 30303 Optical Properties of Materials
subject: 30502 Natural Products Chemistry
subject: 30701 Quantum Chemistry
subject: 39904 Organometallic Chemistry
subject: Organic Chemistry
subject: 30599 Organic Chemistry not elsewhere classified
subject: 30205 Non-metal Chemistry
subject: Nuclear Chemistry
subject: 30504 Organic Green Chemistry

description: Corey-Fuchs olefination is a two-step reaction, involving the reaction of an aldehyde and tetrabro-momethane (CBr4) in the presence of the triphenylphosphine (Ph3P) to synthesize 1,1-dibromoolefins. In the second step, the conversion of the dibromoolefins to alkynes occurred in the presence of n-BuLi as the base. This transformation was first discovered by E. J. Corey and P. L. Fuchs in 1972. Due to the importance of tenninal alkynes in the synthetic organic chemistry, the Corey-Fuchs reaction has found many applications in organic transformations; particularly in the total synthesis of several biologically active natural products, often as starting materials.
Nom nom nomoi : food, identity, and shared custom in Herodotus’ Histories
Creators: name: Hutt, Molly B.
Publisher: name: University of British Columbia
Year: 2017

description: Herodotus attributed much significance to the subjects of food and foodways. With the possible exception of death-related rituals, foodways are the only genre of custom that Herodotus covers in substantial detail for every society which he describes at length, and they are an important component of ethnicity and identity in both his explicitly ethnographical logoi and his narrative generally. The two most well-known sources on food and identity in Herodotus, François Hartog’s Le miroir d’Hérodote (1980, English 1988) and Brent Shaw’s “Eaters of Flesh, Drinkers of Milk” (1982) take Herodotus’ discussion of food as a method of “Othering,” a “mirror” through which Herodotus’ Greek readers could see themselves by comparison to outlandish, often fabricated, descriptions. However, Herodotus’ food passages reflect, at least to some extent, a reality which Herodotus clearly thought it important to relate, so to dismiss them as simply one more act of literary “Othering” is insufficient. Previous studies have tended to focus entirely on one culture, usually Scythian, sometimes Perisan, and rarely Egyptian, whose foodways generally appear only in broader studies of Herodotus’ Egyptian logos. Because of these limitations, and the fact that the scholarly community seemed to consider the problem of food in Herodotus “solved” after Hartog and Shaw (and thus no longer worthy of continuing research), the topic merits renewed investigation. Through a look at all three cultures, I show that Herodotus’ discussion of food is part of a larger scheme of humanizing barbarians, an addition of a biological universal to which any reader/listener could relate. In Herodotus’ discourse on food, the barbarian is not presented exclusively as an “Other” but also made more relatable to the Greek audience, complicating the relationship between “us” and “them.” Ultimately Herodotus shows his audience that barbarians, and especially Persians, share more in common with Greeks in terms of foodways than has previously been accepted, using food as a narrative tool to tie together disparate cultures. This thesis represents an important initial step in bringing the subject of food in Herodotus, after several decades of being overlooked, up to date with scholarship on other aspects of his work.
The melting and abundance of open charm hadrons
Creators: name: Bazavov, A.
name: Ding, H.-T.
name: Hegde, P.
name: Kaczmarek, O.
name: Karsch, F.
name: Laermann, E.
name: Maezawa, Y.
name: Mukherjee, Swagato
name: Ohno, H.
name: Petreczky, P.
name: Schmidt, C.
name: Sharma, S.
name: Söldner, Wolfgang
name: Wagner, M.
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: 530 Physik

description: Ratios of cumulants of conserved net charge fluctuations are sensitive to the degrees of freedom that are carriers of the corresponding quantum numbers in different phases of strong interaction matter. Using lattice QCD with 2+1 dynamical flavors and quenched charm quarks we calculate second and fourth order cumulants of net charm fluctuations and their correlations with other conserved charges such as net baryon number, electric charge and strangeness. Analyzing appropriate ratios of these cumulants we probe the nature of charmed degrees of freedom in the vicinity of the QCD chiral crossover region. We show that for temperatures above the chiral crossover transition temperature, charmed degrees of freedom can no longer be described by an uncorrelated gas of hadrons. This suggests that the dissociation of open charm hadrons and the emergence of deconfined charm states sets in just near the chiral crossover transition. Till the crossover region we compare these lattice QCD results with two hadron resonance gas models --including only the experimentally established charmed resonances and also including additional states predicted by quark model and lattice QCD calculations. This comparison provides evidence for so far unobserved charmed hadrons that contribute to the thermodynamics in the crossover region.
description: SCOAP3
Maïssa Bey : romancière de l’agentivité de femmes
Creators: name: Lamrous, Lila
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

The study of Maïssa Bey’s novel Surtout ne te retourne pas allows to examine how the Francophone novel represents an earthquake as a poetic, metaphorical and political shockwave. The novel is part of a literary tradition but also shows the singularity of the writing and the engagement of the Algerian novelist Maïssa Bey. It allows to examine the feminine agentivity in the context of the disaster camps in Algeria: from the ravaged space/country emerge the voices of women who enter into resistance to improvise, invent their lives and their identities. The earthquake allows them to free themselves, to take a subversive point of view at society and their status as women in an oppressive patriarchal society. The staged female characters arrogate to themselves the right to reread history and take their destiny back.

description: Il Tolomeo
On equation $x^q=a$ over $\bq_p$
Creators: name: Mukhamedov, Farrukh
name: Saburov, Mansoor
Publisher: name: arXiv
Year: 2011
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 11D88, 11S05

description: In this paper we provide a solvability criterion for the monomial equation $x^q=a$ over $Q_p$ for any natural number $q$.
description: 5 pages
Dynamic Trust-based Recertifications in Identity and Access Management
Creators: name: Richthammer, Christian
name: Kunz, Michael
name: Sänger, Johannes
name: Hummer, Matthias
name: Pernul, Günther
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: Computational trust, enterprise identity management, recertification, access control, compliance, identity and access management
subject: 004 Informatik

description: Security compliance has become an important topic for medium- and large-sized companies in the recent years. In order to fulfill all requirements legally imposed, high quality identity management – particularly with respect to correct and consistent access control – is essential. In this context, the concept of recertification has proven itself to maintain the quality and correctness of access rights over a long period of time. In this paper, we show how the traditional recertification concept can be notably enhanced through involving the notion of trust. We thereto propose a trust-based recertification model and demonstrate its benefits by means of a realistic use case. Our dynamic concept can help to better spread the recertification overhead compared to the traditional approach with fixed periods. Furthermore, it aids in the identification of risky employees.
Molecular structure determination, spectroscopic, quantum computational studies and molecular docking of 4-(E)-[2-(benzylamino)phenylimino) methyl-2]ethoxy phenol
Creators: name: Ahmad, Hajam Towseef
name: Ameen, K. K. Mohammed
name: Saleem, H.
name: Padusha, M. Syed Ali
name: Ahamed, F. M. Mashood
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: A Schiff base compound 4-(E)-[2-(benzylamino)phenylimino)methyl-2]ethoxy phenol (4BPM2EP) was synthesized and spectroscopic characterization was performed using experimental methods such as FT-IR, FT-Raman and UV-Vis spectroscopy. Density functional theory (DFT/B3LYP/6-311++G(d,p)) computation was used to investigate the optimized molecular geometry, harmonic vibrational wavenumber, NMR chemical shifts, natural bond orbital (NBO) analysis, non-linear optical (NLO) properties, molecular electrostatic potential (MEP) map and Mulliken atomic charges of 4BPM2EP molecule. TD-DFT calculations have been carried out on the optimized geometry at gaseous phase, DMSO and ethanol to further understand the electronic transitions and solvents effect on the UV-Vis spectra of the compound. The assignments of vibrational modes were performed on the basis of total energy distribution (TED) using VEDA 4 program and were compared with experimental data. Molecular docking study was performed using Glide program to establish the information about the interactions between the topoisomerase DNA gyrase enzymes and the novel compound in order to explore the biological behaviour of the examined compound. The compound screened against four pathogens two gram positive, two gram negative and two fungal strains had shown good anti-bacterial and antifungal behaviour. Furthermore the compound was subjected to in-silico ADMET studies. Communicated by Ramaswamy H. Sarma
Two-dimensional topological insulator edge state backscattering by dephasing
Creators: name: Essert, Sven
name: Krueckl, Viktor
name: Richter, Klaus
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik

description: To understand the seemingly absent temperature dependence in the conductance of two-dimensional topological insulator edge states, we perform a numerical study which identifies the quantitative influence of the combined effect of dephasing and elastic scattering in charge puddles close to the edges. We show that this mechanism may be responsible for the experimental signatures in HgTe/CdTe quantum wells if the puddles in the samples are large and weakly coupled to the sample edges. We propose experiments on artificial puddles which allow to verify this hypothesis and to extract the real dephasing time scale using our predictions. In addition, we present a new method to include the effect of dephasing in wave-packet-time-evolution algorithms.
Exact Constructions of a Family of Dense Periodic Packings of Tetrahedra
Creators: name: Torquato, S.
name: Jiao, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Metric Geometry (math.MG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The determination of the densest packings of regular tetrahedra (one of the five Platonic solids) is attracting great attention as evidenced by the rapid pace at which packing records are being broken and the fascinating packing structures that have emerged. Here we provide the most general analytical formulation to date to construct dense periodic packings of tetrahedra with four particles per fundamental cell. This analysis results in six-parameter family of dense tetrahedron packings that includes as special cases recently discovered "dimer" packings of tetrahedra, including the densest known packings with density $ϕ= 4000/4671 = 0.856347...$. This study strongly suggests that the latter set of packings are the densest among all packings with a four-particle basis. Whether they are the densest packings of tetrahedra among all packings is an open question, but we offer remarks about this issue. Moreover, we describe a procedure that provides estimates of upper bounds on the maximal density of tetrahedron packings, which could aid in assessing the packing efficiency of candidate dense packings.
description: It contains 25 pages, 5 figures.
La critique environnementale dans les récits animaliers de René Maran
Creators: name: Milanesio, Lia
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

This article aims at analysing René Maran’s five animal novels. In these texts, Maran criticizes the colonial system not only for its cruelty to the native population, but also for its ecological violence against the bush and its non-human inhabitants. In particular, this research will be focusing on the author’s ability to abandon a human (and colonial) point of view in order to adopt an animal one. On the one hand, this new subjectivity – as well as Maran’s comprehension of indigenous naturalist society – allows the writer to condemn the colonial period from an ecocritical perspective. On the other hand, it provides evidence of the existence of culture among the beasts of his novels. Finally, this article will also prove that it is thanks to their culture that Maran’s animals will try to resist the colonial-centred environment and ideology.

description: Il Tolomeo
Magneto-optic transmittance modulation observed in a hybrid graphene-split ring resonator terahertz metasurface
Creators: name: Zanotto, Simone
name: Lange, Christoph
name: Maag, Thomas
name: Pitani, Alessandro
name: Meseikis, Vaidotas
name: Coletti, Camilla
name: Degl'Innocenti, Riccardo
name: Badacci, Lorenzo
name: Huber, Rupert
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik

description: By placing a material in close vicinity of a resonant optical element, its intrinsic optical response can be tuned, possibly to a wide extent. Here, we show that a graphene monolayer, spaced a few tenths of nanometers from a split ring resonator metasurface, exhibits a magneto-optical response which is strongly influenced by the presence of the metasurface itself. This hybrid system holds promises in view of thin optical modulators, polarization rotators, and nonreciprocal devices, in the technologically relevant terahertz spectral range. Moreover, it could be chosen as the playground for investigating the cavity electrodynamics of Dirac fermions in the quantum regime.
Ruy Duarte de Carvalho’s Neo-Animist Project: An African Approach to Posthumanism
Creators: name: Girotto, Alice
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

The literary project of the Angolan writer Ruy Duarte de Carvalho, from the collection of poems Chão de oferta (1972) to the metafictional trilogy Os filhos de Próspero (2009), along with his work as an anthropologist, filmmaker and intellectual, is animated by a research for a conjunction between subject, geology, landscape and politics, which rejects Western epistemological categories and their underlying powers. At the end of his life, this trait of his personality and work took the form of an unfinished neo-animist project, based on a decalogue in which he criticises the humanist paradigm for the sake of recovering an “equilibrium politics” relying on “[o]ther paradigms set aside and hidden from consideration because they originate in cultures dominated or annihilated by the Western world”. The aim of this essay is both to trace the origins of Carvalho’s neo-animist project in his early poetry and narrative and connect it with a broader African criticism, both literary and philosophical, in order to include his thought within the African approach to posthumanism.

description: Il Tolomeo
Holomorphic Quantization of Linear Field Theory in the General Boundary Formulation
Creators: name: Oeckl, Robert
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 57R56, 81S10, 81T05, 81T20

description: We present a rigorous quantization scheme that yields a quantum field theory in general boundary form starting from a linear field theory. Following a geometric quantization approach in the Kähler case, state spaces arise as spaces of holomorphic functions on linear spaces of classical solutions in neighborhoods of hypersurfaces. Amplitudes arise as integrals of such functions over spaces of classical solutions in regions of spacetime. We prove the validity of the TQFT-type axioms of the general boundary formulation under reasonable assumptions. We also develop the notions of vacuum and coherent states in this framework. As a first application we quantize evanescent waves in Klein-Gordon theory.
Mélancolie de Janvier
Creators: name: Chemla, Yves
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

The question of the nationalism of the Haitian writer Louis-Joseph Janvier (1855-1911) is more complex than it seems on the surface. An all-pervading theme in most of his texts, the nationalist imperative takes on different forms, the majority of which are based on facts which occurred at the time Janvier was writing. Janvier tries to exhaust the subject by establishing the facts and by challenging beliefs. He desperately tries to portray a positive, benevolent, welcoming image of Haitian nationalism, but as is often the case, this figure is also made up of contradictory aspects, which have been present since its emergence at the time of the French Revolution, and which undoubtedly found one of its first political expressions at the battle of Valmy, in September 1792. Janvier has thus to overcome the dissatisfaction that accompanies Haitian nationalism for its underlying exclusiveness. These paradoxical relationships of the author with the national founding ideal undergo significant changes throughout his career as an essayist, pamphleteer and novelist, diplomat and politician, ranging from the severe judgment, even contempt, for those who dispute the basis of this requirement to the radical criticism of an ideology which reveals its dark and deadly face. The proposed contribution seeks first to identify, through texts of various origins, the themes, the facts or just the simple echoes of this idea of nation that seems to run through Janvier’s text.

description: Il Tolomeo
Two-loop evolution equations for light-ray operators
Creators: name: Braun, Vladimir M.
name: Manashov, Alexander
Publisher: name: Universität Regensburg
Year: 2014
Subjects: subject: 530 Physik

description: QCD in non-integer d=4−2ϵ space–time dimensions possesses a nontrivial critical point and enjoys exact scale and conformal invariance. This symmetry imposes nontrivial restrictions on the form of the renormalization group equations for composite operators in physical (integer) dimensions and allows to reconstruct full kernels from their eigenvalues (anomalous dimensions). We use this technique to derive two-loop evolution equations for flavor-nonsinglet quark–antiquark light-ray operators that encode the scale dependence of generalized hadron parton distributions and light-cone distribution amplitudes in the most compact form.
description: SCOAP3
Crossing the boundaries : from "outsiders" to "insiders" in early-Tang-dynasty China
Creators: name: Ma, Cheng
Publisher: name: University of British Columbia
Year: 2017

description: The Tang dynasty (618-907) captured scholars' attention as one of the most cosmopolitan empires in Chinese history because of its openness toward transcontinental and trans-regional cultural, economic, diplomatic and religious exchanges. The empire attracted a diverse group of foreign subjects within its political boundaries. To better understand the nature of the Tang dynasty, this thesis takes a close look at the dynasty’s foreign policies toward this special group of foreigners. More specifically, it examines the life trajectories of individuals who were born and originally lived outside of the boundaries of the Tang in the north and northwest but later served in very high positions in the Tang bureaucratic system. Conventional understanding of the Tang dynasty has long included the existence of such varieties of political and ethnic groups within the Tang. However, scholars diverge on the Tang dynasty’s criteria of incorporating and treating foreigners in the regime. By scrutinizing each individuals' lives, this thesis argues that despite the emphasis on ethnic differences and political loyalty in Tang discourses, the Tang dynasty accepted foreigners primarily based on pragmatic concerns, namely, whether individuals could prove themselves useful to the dynasty. Differences in genealogy, culture and political loyalty were mainly used as rhetorical weapons against foreigners when they were no longer useful to the dynasty. Through detailed studies of individuals’ lives, this thesis points out the pragmatic nature of the Tang dynasty’s foreign policies instead of the more conventional understanding of a tributary foreign policy that greatly emphasized cultural and ethnic superiority. It points out that even though there were clear-set boundaries of political identity, it was ultimately fluid and fungible as long as individuals, regardless of ethnic or cultural backgrounds, proved themselves useful to the dynasty.
Variance-based uncertainty relations
Creators: name: Huang, Yichen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Uncertainty relations are fundamental in quantum mechanics. Here I propose state-independent variance-based uncertainty relations for two or more arbitrary observables in finite dimensional spaces. The uncertainty relations provide near-optimal lower bounds in some typical examples, and are useful for entanglement detection.
description: v2: published version
Discovery of a novel inhibitor against urokinase-type plasminogen activator, a potential enzyme with a role in atherosclerotic plaque instability
Creators: name: Ganguly, Rik
name: Mylliemngap, Baphilinia Jones
name: Bhattacharjee, Atanu
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Hematology

description: The buildup of lipids, cholesterol, and other substances in and on the walls of the arteries is known as atherosclerosis and deposition is known as atherosclerotic plaque. Urokinase-type plasminogen activator (uPA) has multiple roles in the atherosclerotic plaque formation and even work simultaneously in making the atherosclerotic plaque unstable. Extracellular matrix plays a major role in the plaque remodeling and rapture. In this study, we have accessed that a higher interaction was observed in the molecular interaction score for uPA with ZINC380065722 having a GOLD fitness score of about 67.60, which is much higher as compared to the known standard inhibitor UK 122 which has reported an interaction score of 59.14. Ser217 and Asp192 are found to be the key amino acid residues in almost all the interactions. Protein frustration analysis has shown that these amino acid residues play a crucial role in the retention of the active pocket conformation and any mutation of these two residues can causes serious decrease in the overall function of the protein. It was observed that the molecule ZINC380065722 remained bound to the protein till 100 ns of simulation time. The average SASA for the apo-uPA and uPA-ligand complex was found to be stable. The network of hydrogen bonds for the intramolecular protein secondary structure and with the solvent system for the apo-protein and the uPA-ligand complex was found to be consistent. Communicated by Ramaswamy H. Sarma
MPEC 2025-F245 : 2025 FO15
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2025
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2025 FO15

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Graphene Nanoribbon in Sharply Localized Magnetic Fields
Creators: name: Alhaidari, Abdulaziz D.
name: Bahlouli, Hocine
name: Mouhafid, Abderrahim El
name: Jellal, Ahmed
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the effect of a sharply localized magnetic field on the electron transport in a strip (ribbon) of graphene sheet, which allows to give results for the transmission and reflection probability through magnetic barriers. The magnetic field is taken as a single and double delta type localized functions, which are treated later as the zero width limit of gaussian fields. For both field configurations, we evaluate analytically and numerically their transmission and reflection coefficients. The possibility of spacial confinement due to the inhomogeneous field configuration is also investigated.
description: 20 pages, 14 figures, clarification and reference added, misprints corrected. Version published in EPJB
Magnetoresistance quantum oscillations in a magnetic two-dimensional electron gas
Creators: name: Kunc, J.
name: Piot, B. A.
name: Maude, D. K.
name: Potemski, M.
name: Grill, R.
name: Betthausen, Christian
name: Weiss, Dieter
name: Kolkovsky, V.
name: Karczewski, G.
name: Wojtowicz, Tomasz
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: 530 Physik
subject: 72.80.Ey, 73.21.Fg, 73.63.−b

description: Magnetotransport measurements of Shubnikov–de Haas (SdH) oscillations have been performed on twodimensional electron gases (2DEGs) confined in CdTe and CdMnTe quantum wells. The quantum oscillations in CdMnTe, where the 2DEG interacts with magnetic Mn ions, can be described by incorporating the electron-Mn exchange interaction into the traditional Lifshitz-Kosevich formalism. The modified spin splitting leads to characteristic beating pattern in the SdH oscillations, the study of which indicates the formation of Mn clusters resulting in direct anti-ferromagnetic Mn-Mn interaction. The Landau-level broadening in this system shows a peculiar decrease with increasing temperature, which could be related to statistical fluctuations of the Mn concentration.
Decision Support for the Usage of Mobile Information Service: A Context-Aware Service Selection Approach that Considers the Effects of Context Interdependencies
Creators: name: Heinrich, Bernd
name: Lewerenz, Lars
Publisher: name: Universität Regensburg
Year: 2015
Subjects: subject: mobile business, context-aware, service selection, context interdependencies, mobile information service
subject: 330 Wirtschaft

description: In mobile business, context information is utilised to select services mostly tailored to a user’s current situation and preferences. In existing context-aware service selection approaches, a service utility is determined by comparing its non-functional properties with current context information but without considering its integration in a service composition. This may cause suboptimal selection results, as context information and thus the determined utility of a certain service are usually dependent on its preceding and succeeding services. The latter we denote as context interdependencies. In this paper, we investigate how the effects of context interdependencies can be modelled for the context-aware service selection at planning time (i.e. before starting to accomplish a service composition). To develop this approach, we use the concept of states to model context information for the selection. In our evaluation, we find that our approach leads to superior results compared to current context-aware service selection approaches.
Healthy and Physically Active Schools in Europe: Framework and Guidelines for Implementation
Creators: name: Boronyai, Zoltan
name: Bailey, Richard
name: Heck, Sandra
name: Raya Demidoff, Andreu
name: Repond, Rose-Marie
name: Vašíčková, Jana
name: Vlček, Petr
name: Scheuer, Claude
Publisher: name: Zenodo
Year: 2022
Subjects: active school
physical activity
physical education
school sport
healthy lifestyles

description: In one of the most important project outcomes in HEPAS (An International Review of the Contributions of School-based Physical Activity, Physical Education, and School Sport to the Promotion of Health-enhancing Physical Activity; Bailey et al., 2022) a quite complex model was built up. The Healthy and Physically Active School Model includes the dimensions and layers that represent the functions and environment of a school from physical activity (PA) promotion point of view. These dimensions are the following ones: 1-3. General categories from regulation level, indirect effects, school values and policies (school values, aims & policies, external information, international, national & local expectations); 4-8. The groups the activities target or can be delivered by (leaders, teachers/staff, students, parents, community); 9-12. The dimensions of the interventions (PA, PE, School Sport, Healthy Lifestyles); 13-17. The transversal dimensions of interventions (Inclusion & Diversity, Professional Development, Facilities, Equipment & Resources, Community Partnerships, Events, Project Weeks, Camps). The dimensions are both surrounded and influenced by the “social climate” and the “physical environment”. Finally, the model includes as overarching aim “students’ physical activity/health behaviours”.
description: Project: Healthy and Physically Active Schools in Europe Project Coordinator: Claude Scheuer Funder: European Commission Programme: Erasmus+ Key Action 2: Strategic Partnerships for School Education – 2019 Reference: 2019-1-LU01-KA201-050112 Timeline: December 2019 – November 2021 Project Sheet: https://ec.europa.eu/programmes/erasmus-plus/projects/eplus-project-details/#project/ 2019-1-LU01-KA201-050112 For further information on the HEPAS Project please follow the link: Website: https://www.movingschoolsaward.com/hepas/
Molecular docking and dynamics approach to in silico drug repurposing for inflammatory bowels disease by targeting TNF alpha
Creators: name: Halder, Debojyoti
name: Das, Subham
name: Joseph, Alex
name: Jeyaprakash, R. S.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Inflammatory bowel disease is a chronic disorder of the large intestine with the prevalence of approximately 400 cases in 100000, and it is rising day by day. However, several drugs like sulfasalazine (composed of sulfapyridine and 5-aminosalicylic acid or 5-ASA), corticosteroids, and immunosuppressants manage the disease. But there are no absolute treatments for the pain and inflammation of the disease. TNFα is an important target, and drugs like infliximab and adalimumab have pharmacological potency but with pronounced toxicity. So, we choose this major target TNFα for the virtual screening of US-FDA-approved drugs for its repurposing using the in silico method. The protein TNFα (PDB ID: 2AZ5) with small molecule inhibitor and the US-FDA-approved drug molecules (from Zinc database) were first imported and prepared using Protein Preparation Wizard and LigPrep, respectively, followed by molecular docking, ADMET analysis and prime MMGBSA. After that, the drugs were shortlisted according to dock score, ADMET parameters and MM GBSA dG binding score. After that, the shortlisted drug molecules were subjected to an induced-fit docking analysis. Two of the most promising molecules, ZINC000003830957 (Iopromide) and ZINC000003830635 (Deferoxamine), were chosen for molecular dynamics simulation. Finally, the bioisosteric replacement was used to improve the ADMET properties of these molecules. This research provides an idea for drug exploration and computational tools for drug discovery in treating inflammatory bowel disease. Communicated by Ramaswamy H. Sarma
Counterfactual analyses with graphical models based on local independence
Creators: name: Røysland, Kjetil
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: We show that one can perform causal inference in a natural way for continuous-time scenarios using tools from stochastic analysis. This provides new alternatives to the positivity condition for inverse probability weighting. The probability distribution that would govern the frequency of observations in the counterfactual scenario can be characterized in terms of a so-called martingale problem. The counterfactual and factual probability distributions may be related through a likelihood ratio given by a stochastic differential equation. We can perform inference for counterfactual scenarios based on the original observations, re-weighted according to this likelihood ratio. This is possible if the solution of the stochastic differential equation is uniformly integrable, a property that can be determined by comparing the corresponding factual and counterfactual short-term predictions. Local independence graphs are directed, possibly cyclic, graphs that represent short-term prediction among sufficiently autonomous stochastic processes. We show through an example that these graphs can be used to identify and provide consistent estimators for counterfactual parameters in continuous time. This is analogous to how Judea Pearl uses graphical information to identify causal effects in finite state Bayesian networks.
description: Published in at http://dx.doi.org/10.1214/12-AOS1031 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
A closer look at the mode of binding of drug pemetrexed with CT-DNA
Creators: name: Ponkarpagam, S.
name: Vennila, K. N.
name: Elango, Kuppanagounder P.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer

description: The interaction of antifolate drug Pemetrexed (PEM) with CT-DNA has been studied by UV-Vis, fluorescence and circular dichroism spectroscopic techniques. The results of these spectroscopic studies in combination with viscosity measurements, voltammetric and KI quenching studies suggested a less-common mode of binding of PEM with CT-DNA i.e. neither intercalation nor groove binding. Thus, metadynamic (MD) simulation is utilized to decipher the nature of binding of PEM with CT-DNA. Analysis of free energy surfaces obtained in MD simulation, reveals that PEM binds to the 3’- and 5’-ends of the DNA molecule. The thermodynamics of the interaction has been investigated by isothermal titration calorimetric experiment. The analysis shows that PEM binds with CT-DNA strongly with a binding constant of 2.6x109 M−1 and the process is found to be spontaneous (ΔG − 12.84 kcal/mol). Further, positive values of enthalpy (ΔH 6.09 cal/mol) and entropy (ΔS 43.1 cal/mol) changes indicate that the binding is an enthalpically unfavourable and, instead, entropically driven process. Communicated by Ramaswamy H. Sarma
Sur les pas de Louis-Philippe Dalembert. Un hommage à la carrière du « gavroche caraïbe »
Creators: name: Boraso, Silvia
Publisher: name: Fondazione Università Ca’ Foscari Venezia, Italia
Year: 2020

description:

In 1982, the Haitian writer Louis-Philippe Dalembert published his first collection of poetry, Évangile pour les miens. It was the beginning of a prolific, multiform, and successful career. During the next thirty years, he has published four other poetry collections, four collections of short stories, ten novels, and numerous essays. Intended as a tribute to Dalembert’s literary work, this article will try to describe the evolution of his production in verse and prose. In particular, three recurrent themes will be discussed: 1) the elaboration in his first texts of a system of rememorating strategies that will lead to the formulation of the notion of ‘pays-temps’; 2) the use of an urban setting, namely the borough, to convey the collective values of the community; 3) the birth, in his late publications, of a universal poetics transcending any type of border.

description: Il Tolomeo
Dissecting the Red Sequence - III. Mass-to-Light Variations in 3D Fundamental Plane Space
Creators: name: Graves, Genevieve J.
name: Faber, S. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Fundamental Plane has finite thickness and is tilted from the virial relation, indicating that dynamical mass-to-light ratios (Mdyn/L) vary among early type galaxies. We use a sample of 16,000 quiescent galaxies from the Sloan Digital Sky Survey to map out variations in Mdyn/L through the 3D Fundamental Plane space defined by velocity dispersion (sigma), effective radius (R_e), and effective surface brightness. We consider contributions to Mdyn/L variation due to stellar population effects, IMF variations, and variations in the dark matter fraction within one R_e. Along the FP, we find that the stellar population contribution scales as M*/L ~ f(sigma), while the dark matter and/or IMF contribution scales as Mdyn/M* ~ g(Mdyn). The two contributions to the tilt of the FP rotate the plane around different axes in the 3D space, with dark matter/IMF variations likely dominating. Through the thickness of the FP, we find that Mdyn/L variations must be dominated either by IMF variations or by real differences in dark matter fraction with R_e. Thus the finite thickness of the FP is due to variations in the stellar mass surface density within R_e, not the fading of passive stellar populations. These structural variations are correlated with galaxy star formation histories such that galaxies with higher Mdyn/M* at a given sigma have higher [Mg/Fe], lower metallicities, and older mean stellar ages. It is difficult to explain the observed correlations by allowing the IMF to vary, suggesting difference in dark matter fraction dominate. These can be produced by variations in the "conversion efficiency" of baryons into stars or by the redistribution of stars and dark matter through dissipational merging. A model in which some galaxies experience low conversion efficiencies due to premature truncation of star formation provides a natural explanation for the observed trends.
description: 26 pages, 15 figures, resubmitted to ApJ after incorporating referee's comments.