cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Sign changes and resonance of intrinsic spin Hall effect in two-dimensional hole gas
Creators: name: Ma, Tianxing
name: Liu, Qin
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The intrinsic spin Hall conductance shows rich sign changes by applying a perpendicular magnetic field in a two-dimensional hole gas. Especially, a notable sign changes can be achieved by adjusting the characteristic length of the Rashba coupling and hole density at moderate magnetic fields. This sign issue may be easily realized in experiments. The oscillations of the intrinsic spin Hall conductance as a function of 1/$B$ is nothing else but Shubnikov-de Haas oscillations, and the additional beatings can be quantitatively related to the value of the spin-orbit coupling parameter. The Zeeman splitting is too small to introduce effective degeneracy between different Landau levels in a two-dimensional hole gas, and the resonant intrinsic spin Hall conductance appears in high hole density and strong magnetic field due to the transition between mostly spin-$-{1/2}$ holes and spin-3/2 holes is confirmed. Two likely ways to establish intrinsic spin Hall effect in experiments and a possible application are suggested.
description: Accepted for publication in Applied Physics Letters, an enlarged version, 5 pages, 4 figs
Towards charged hadron polarizabilities from four-point functions in lattice QCD
Creators: name: Wilcox, Walter
name: Lee, Frank X.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how to compute electromagnetic polarizabilities of charged hadrons using four-point functions in lattice QCD. The low-energy behavior of Compton scattering amplitude is matched to matrix elements of current-current correlation functions on the lattice. Working in momentum space, formulas for electric polarizability ($α_E$) and magnetic polarizability ($β_M$) are derived for both charged pion and proton. Lattice four-point correlation functions are constructed from quark and gluon fields to be used in Monte-Carlo simulations. The content of the functions is assessed in detail and specific prescriptions are given to isolate the polarizabilities. The connected quark-line diagrams can be done today as a small lattice project. The disconnected diagrams are more challenging but are within reach of dedicated resources for medium to large lattice projects. We also draw attention to the potential of four-point functions as a multi-purpose tool for hadron structure.
description: 13 pages, 3 figures. This version provides some corrections and clarifications to V2
Gerechtigkeit als Stachel des Rechts? – Das Ringen um die Gerechtigkeit im Recht
Creators: name: Puzio, Anna
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
Restricting positive energy representations of ${\rm Diff}^+(S^1)$ to the stabilizer of $n$ points
Creators: name: Weiner, Mihály
Publisher: name: arXiv
Year: 2007
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Let $G_n \subset {\rm Diff}^+(S^1)$ be the stabilizer of $n$ given points of $S^1$. How much information do we lose if we restrict a positive energy representation $U^c_h$ associated to an admissible pair $(c,h)$ of the central charge and lowest energy, to the subgroup $G_n$? The question, and a part of the answer originate in chiral conformal QFT. The value of $c$ can be easily ``recovered'' from such a restriction; the hard question concerns the value of $h$. If $c\leq 1$, then there is no loss of information, and accordingly, all of these restrictions are irreducible. In this work it is shown that $U^c_{h}|_{G_n}$ is always irreducible for $n=1$, and if $h=0$, it is irreducible at least up to $n\leq 3$. Moreover, an example is given for certain values $c>1$ and $h,\tilde{h}>0$ such that $U^c_{h}|_{G_1}\simeq U^c_{\tilde{h}}|_{G_1}$. It follows that for these values $U^c_{h}|_{G_n}$ cannot be irreducible for $n\geq 2$. For further values of $c,h$ and $n$, the question is left open. Nevertheless, the example already shows, that in general, local and global intertwiners in a QFT model may not be equivalent.
description: 21 pages, no figures. V2: minor corrections
Real-frequency response functions at finite temperature
Creators: name: Tupitsyn, I. S.
name: Tsvelik, A. M.
name: Konik, R. M.
name: Prokof'ev, N. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Building on previous developments, we show that the Diagrammatic Monte Carlo technique allows to compute finite temperature response functions directly on the real-frequency axis within any field-theoretical formulation of the interacting fermion problem. There are no limitations on the type and nature of the system's action or whether partial summation and self-consistent treatment of certain diagram classes are used. In particular, by eliminating the need for numerical analytic continuation from a Matsubara representation, our scheme allows to study spectral densities of arbitrary complexity with controlled accuracy in models with frequency-dependent effective interactions. For illustrative purposes we consider the problem of the plasmon line-width in a homogeneous electron gas (jellium).
description: 5 pages and 5 figures in the main text plus 7 pages and 7 figures in the Supplemental material
Effects of boundaries in mesoscopic superconductors
Creators: name: Romaguera, Antonio R. de C.
name: Doria, Mauro M.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A thin superconducting disk, with radius $R=4ξ$ and height $H=ξ$, is studied in the presence of an applied magnetic field parallel to its major axis. We study how the boundaries influence the decay of the order parameter near the edges for three-dimensional vortex states.
description: To appear in Physica C as a special issue of M2S-HTSC
Exotic Topology in Ordinary Soft Matter
Creators: name: Tlusty, Tsvi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Hydrodynamics is shown to induce non-Hermitian topological phenomena in ordinary, passive soft matter. This is demonstrated for the first time by subjecting a 2D elastic lattice to a low-Reynolds viscous flow. The interplay of hydrodynamics and elasticity splits Dirac cones into bulk Fermi arcs, pairing exceptional points with opposite half-integer topological charges. The bulk Fermi arc is a generic hallmark of the system exhibited in all lattice and flow symmetries. Analytic model and simulations explain how the emergent singularities shape the spectral bands and give rise to a web of van Hove singularity lines in the density of states. The present findings suggest that non-Hermitian physics can be explored in a broad class of ordinary soft matter, living and artificial alike, opening avenues for topology-based technology in this regime.
Relationship Between Diet and Mental Health in Adolescents
Creators: name: Malika
Publisher: name: Zenodo
Year: 2024

description: Adolescents as defined by WHO represents children aged between 10-18 years. Growth spurt is generally seen among infants and adolescents. Growth is largely dependent on our diet, mental well-being and exercise. We are what we eat and the best part is it is in our control to decide what we eat and what we feed to our families. Undoubtedly food has mental, physical, emotional and even spiritual effect on our mind and body. Research has already proven the link between diet and mental health which is really important for children and teens. Various studies have shown that teens these days are more inclined towards fast foods, aerated drinks, even drugs and liquors are now part of their eating habits. Binge eating disorder is also one of the problems seen among adolescents, which further leads to various disorders and diseases. Diets which include burgers, pizzas containing large quantities of all the three whites i.e. sugar, salt and refined flour (maida) is actually not recommended for any age group and has further found to increase levels of depression, anxiety, mood swings, hyperactivity and wide variety of other mental and emotional problems. Such type of diets are just expanding our waistlines and starving and shrinking brain cells of our youth. Phytochemicals from plant sources and fish from animal source are known to play an important role to stay happy and to prevent damage to our brain cells. In the present article we will be dealing with above quoted aspect which really is the need of the day.
Towards an interoperating ecosystem of tools and resources for population genetics in R
Creators: name: Lapp, Hilmar
name: Population Genetics In R Hackathon Participants
Publisher: name: F1000Research
Year: 2015

description: The broad and inexpensive availability of modern next-generation sequencing and genotyping technologies have led to a wealth of data and analytical methods for population genetics research. In the popular statistical and mathematical computing platform R alone, there are now dozens of packages available for analyzing and visualizing population genetics data. However, this organically grown wealth of methods and packages, combined with the exponential growth of datasets, has also created challenges for researchers to take full advantage of these resources. It can be difficult to know which R packages are best used, and many packages do not interoperate well. A common base class that provides efficient storage of genetic data and promotes interoperability remains lacking even though the need was identified years ago. Current implementations often do not scale well to the kind of large volume datasets that are increasingly common. Creating complex analysis workflows that need to pass data, metadata, and other state information from one package to another can be challenging. To address these gaps, we held the Population Genetics in R Hackathon at, and sponsored by the National Evolutionary Synthesis Center (NESCent), located in Durham, NC.  We designed the event to target interoperability, scalability, and workflow building challenges among the many population genetics R packages that already exist, and to ultimately help foster an interoperating ecosystem of tools and resources for both users and researcher-developers. Here we highlight key outcomes of the event, which are all open-source and freely available.
Avoiding the boson sign problem at finite chemical potential
Creators: name: Endres, Michael G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The usual path integral formulation for scalar particles at finite density involves a sign problem, making numerical simulation impractical. We present alternative methods free of this difficulty. We apply these approaches to phi^4 theory in 2+1 dimensions, presenting preliminary numerical results for physical quantities in the vicinity of the phase transition in the T-mu plane.
description: 7 pages, 5 figures, talk presented at Lattice 2006 (High Temperature and Density)
Reply to "Comment on 'Nonlocality claims are inconsistent with Hilbert-space quantum mechanics' '"
Creators: name: Griffiths, Robert B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In Phys. Rev. A 101, 022117 (2020), it was argued that Bell inequalities are based on classical, not quantum, physics, and hence their violation in experiments provides no support for the claimed existence of peculiar nonlocal and superluminal influences in the real (quantum) world. This Reply to Lambare's Comment, Phys. Rev. A 104, 066201 (2021), on that paper seeks to clarify some issues related to the correct use of Hilbert space quantum mechanics for identifying the microscopic causes of later macroscopic measurement outcomes, a matter not properly addressed by Bell, who used classical hidden variables in place of the Hilbert subspaces (equivalently, their projectors) employed by von Neumann in his \it{Mathematical Foundations of Quantum Mechanics}.
description: This Reply to Lambare arXiv:2102.07524 is close to the published version
"First steps with": a training course series to launch life scientists on the road towards bioinformatics
Creators: name: Marek, Diana
Publisher: name: F1000Research
Year: 2015

description: The SIB Swiss Institute of Bioinformatics, via its Training and Outreach group, provides and coordinates training on various bioinformatics-related domains and with different skill levels. In addition to long-established block-courses and one-day workshops, as well as e-learning modules, SIB is offering a new series of "First Steps with" courses to address an increasing demand for basic training on specific topics in bioinformatics.

Indeed, next generation -omics technologies require extended skills in computational biology, which many scientists and PhD students lack. Our “First Steps with” one-day courses target beginners with no programming background and aim to provide basic skills on particular topics required by new technologies, focussing mainly on large-scale data analysis.

The first course of the series "First Steps with UNIX", has been taught several times and based on participants’ feedback, provided relevant training through real-world practicals. The second course, "First Steps with R", has already received long waiting lists, illustrating the high demand for such beginners’ courses. Participants appreciated being introduced to this powerful programming environment and its basic usage.

Such a series of introductory courses represents a necessary first step but participants will require more training and practice to fully exploit these tools for their own research. To pursue its training efforts, SIB plans to develop new courses of this series (such as Perl or Python), and to offer intermediate courses or follow-ups on existing basic training. This will enable researchers to continue improving and using bioinformatics' skills in their daily work.
The nonlinear diffusion limit for generalized Carleman models: the initial-boundary value problem
Creators: name: Golse, François
name: Salvarani, Francesco
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76P05 (Primary) 35L50, 82C40 (Secondary)

description: Consider the initial-boundary value problem for the 2-speed Carleman model of the Boltzmann equation of the kinetic theory of gases set in some bounded interval with boundary conditions prescribing the density of particles entering the interval. Under the usual parabolic scaling, a nonlinear diffusion limit is established for this problem. In fact, the techniques presented here allow treating generalizations of the Carleman system where the collision frequency is proportional to some power of the macroscopic density, with exponent in [-1,1].
Norm-dependent Random Matrix Ensembles in External Field and Supersymmetry
Creators: name: Guhr, Thomas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The class of norm-dependent Random Matrix Ensembles is studied in the presence of an external field. The probability density in those ensembles depends on the trace of the squared random matrices, but is otherwise arbitrary. An exact mapping to superspace is performed. A transformation formula is derived which gives the probability density in superspace as a single integral over the probability density in ordinary space. This is done for orthogonal, unitary and symplectic symmetry. In the case of unitary symmetry, some explicit results for the correlation functions are derived.
description: 19 pages
Triplets of Galaxies in the Local Supercluster. I. Kinematic and Virial Parameters
Creators: name: Vavilova, I. B.
name: Karachentseva, V. E.
name: Makarov, D. I.
name: Melnyk, O. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We considered kinematic and virial parameters of a sample of galaxy triplets from the Local Supercluster (LS). The galaxies were selected from the LEDA database, and their radial velocities are no more than 3100 km/s. The sample contains 176 systems selected according to the Karachentsev criterion. We calculated the following median parameters of the LS triplets: rms velocity of galaxies with respect to triplet center, Sv=30 km/s; harmonic mean radius, Rh=160 kpc; virial mass Mvir=3.6x10^11 Msun; and mass-to-light ratio, Mvir/L=35 Msun/Lsun. Although various investigators used different approaches to compile samples of triple systems, general properties of the triplets in all the samples we considered agree rather satisfactorily. The LS triplets have the least mass-to-light ratio as compared to other galaxy triplet samples.
description: 13 pages; published in Kinematics and Physics of Celestial Bodies Vol. 21, No. 1, pp. 1-16, 2005
Constraining the Baryon Abundance with the Kinematic Sunyaev-Zel'dovich Effect: Projected-Field Detection Using Planck, WMAP, and unWISE
Creators: name: Kusiak, Aleksandra
name: Bolliet, Boris
name: Ferraro, Simone
name: Hill, J. Colin
name: Krolewski, Alex
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The kinematic Sunyaev-Zel'dovich (kSZ) effect -- the Doppler boosting of cosmic microwave background (CMB) photons scattering off free electrons with non-zero line-of-sight velocity -- is an excellent probe of the distribution of baryons in the Universe. In this paper, we measure the kSZ effect due to ionized gas traced by infrared-selected galaxies from the \emph{unWISE} catalog. We employ the "projected-field" kSZ estimator, which does not require spectroscopic galaxy redshifts. To suppress non-kSZ foreground signals associated with the galaxies (e.g., dust emission and thermal SZ), this estimator requires cleaned CMB maps, which we obtain from \emph{Planck} and \emph{WMAP} data. Using a new "asymmetric" estimator that combines different foreground-cleaned CMB maps to maximize the signal-to-noise, we measure the kSZ$^2$-galaxy cross-power spectrum for three subsamples of the \emph{unWISE} galaxy catalog, which peak at mean redshifts $z \approx$ 0.6, 1.1, and 1.5, have average halo mass $\sim 1$-$5\times 10^{13}$ $h^{-1} M_{\odot}$, and in total contain over 500 million galaxies. After marginalizing over CMB lensing contributions, we measure the amplitude of the kSZ signal $A_{\rm kSZ^2} = 0.42 \pm 0.31(stat.) \pm 0.14(sys.)$, $5.02 \pm 1.01(stat.) \pm 0.47(sys.)$, and $8.23 \pm 3.23(stat.) \pm 1.60(sys.)$, for the three subsamples, where $A_{\rm kSZ^2} = 1$ corresponds to our fiducial model. The combined kSZ detection S/N $>$ 5. We discuss possible explanations for the excess kSZ signal associated with the $z \approx 1.1$ sample, and show that foreground contamination in the CMB maps is very unlikely to be the cause. Our measurements illustrate clearly that no baryons are missing on large scales at low redshifts.
description: Matches the version accepted for publication in PRD (https://journals.aps.org/prd/accepted/d907bQ13Oae1fd21e4ff4f13177300acb1c23e88e)
Bionode – Modular and universal bioinformatics
Creators: name: Vieira, Bruno
name: Wurm, Yannick
Publisher: name: F1000Research
Year: 2015

description: The exponential growth of biological data generated from sequencing in the last 10 years is putting a lot of pressure in the bioinformatics analysis downstream. However, most tools were developed in an unsustainable way, with a monolithic architecture, complex APIs, custom file formats and without good software development practices. This makes it very hard to build flexible and reproducible analysis pipelines that reuse those tools. In addition, the migration of most utilities to the web has led many developers to rewrite some functionality in JavaScript (a language that can be directly interpreted by browsers).

Bionode aims to solve bioinformatic problems while building highly reusable tools and code, by following the best development practices coming from web startups. Each Bionode module aims to be both a pipeable command line tool that follows the UNIX philosophy (“try to do just one thing well”) but also a JavaScript module that can be integrated in web applications or server-side JavaScript (Node.js). This while using standards like JSON file format and Google’s Protocol Buffers.

This allows for an unprecedented amount of flexibility in the usability of Bionode. Unlike other similar bio* libraries that require the usage of a specific language, Bionode only requires the usage of JavaScript for web development use cases, and can thus be used via command line in other languages or workflow projects (e.g., Galaxy, NoFlo, and Node-RED).
The architecture based on Node.js Streams allows to write complex pipelines that scale without running out of memory by piping chunks of data around.

The high level of modularity of the project also makes it easier for development and contributions, due to the split of functionality into small modules, individually hosted on GitHub/NPM with continuous integration, testing and code coverage. Everything is 100% Open Source (MIT license) and development discussions happen publicly. We also collaborate with Dat ("git for data") and BioJS ("represent biological data on the web").
A note on the Artin Conjecture
Creators: name: Yang, Jae-Hyun
Publisher: name: arXiv
Year: 2006
Subjects: subject: History and Overview (math.HO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R39; 11R42; 22E55

description: In this paper, we survey some recent results on the Artin conjecture and discuss some aspects for the Artin conjecture.
description: 8 pages
Design and Analysis of Rigid Unprotected Flange Coupling Finding Optimized Design
Creators: name: Santosh Malipatil, Sheetalkumar Devalapur, Channaveer Kambar
Publisher: name: Zenodo
Year: 2024

description: Rigid flange couplings are designed for heavy loads. The present study of this paper is to reduce the stress that acting on the bolts by making it uniform strengthen also finding out the safe design vs load. Stresses on the flange coupling joints is predicted using the static analysis. The Finite element simulation is performed on original as well as on different modified designs to optimize the flange coupling joint. The dynamic analysis performed is similar to the torsional analysis of the flange coupling joint and similar boundary condition is applied to the flange coupling. The stress in the threaded part of the bolt will be higher than that in the shank. Hence a greater portion of the will be absorbed at the region of the threaded part which may fracture the threaded portion because of its small length. An axial hole is drilled at the centre of the bolt through the head as far as thread portion such that the stress in the bolt is uniformly distributed along the length of the bolt.
Das Potential der Armutsperspektive
Creators: name: Einsiedel, Stefan
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Papst Franziskus, Amartya Sen und Martha Nussbaum wählen oft die Perspektive der Marginalisierten, um dadurch einen klareren Blick auf die gesamte Gesellschaft zu gewinnen. Der Beitrag skizziert das Wesen und das vielfältige Potential dieses Perspektivwechsels in deren eigenen Werken und anhand eines Forschungsbeispiels zum Thema „Bedeutung von Partizipation für nachhaltige Entwicklung“ in indischen Slums und Dörfern.
description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
Alterität oder Subalternität
Creators: name: Winkler, Katja
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Die besondere Stärke von Anerkennungstheorien liegt darin, dass sie konzeptionelle Lösungen des, für die Sozialethik zentralen, Problems der Exklusion und Partizipation bieten. In diesem Beitrag wird dieses Potential aufgegriffen und auf den Problemkontext der politischen und ethischen Repräsentation bezogen. Es geht vor allem darum, wie Anerkennungsethiken auf Subalternität reagieren. Das kritische Konzept der Subalternität stellt gewissermaßen eine verschärfte Form von Ausschluss dar, der in Stellvertretungsprozessen durch sog. Othering erzeugt wird. Subalterne werden nämlich, so die These, durch Repräsentationsprozesse unsichtbar gemacht, weil sie nicht ihre eigenen Erfahrungen äußern können, sondern immer nur ihre Fremddarstellung durch andere in der Öffentlichkeit Gehör findet. Die unterschiedlichen Antworten von einerseits intersubjektivistischen (z. B. Honneth) und andererseits responsiven (z. B. Levinas und Butler) Anerkennungstheorien auf dieses Repräsentationsproblem werden im Text erörtert. Beide Anerkennungstheorien bieten als Lösungsmöglichkeit die Figur der Selbstbeschränkung an, d. h. dass Repräsentation dann gelingen kann, wenn die Repräsentierenden von ihrer eigenen Besonderheit absehen; so können Anerkennungsordnungen destabilisiert oder modifiziert werden. Inwiefern diese anerkennungsethische Antwort weiterführend ist, aber auch inwieweit Anerkennungstheorien „dekolonisiert“ werden müssten, um auf das Repräsentationsdilemma zu reagieren, wird im letzten Teil des Beitrags diskutiert.
description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
Il manoscritto Chigiano L VIII 305 della Biblioteca Apostolica Vaticana e la «Vita nuova»
Creators: name: Pirovano, Donato
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Dante Alighieri; Vita nuova; manoscritto Chigiano; Chigiano manuscript; filologia; philology; varianti di forma; formal variants

description: L’articolo nasce a margine della nuova edizione commentata, con testo criticamente rivisto, della Vita nuova di Dante nell’àmbito della «Nuova Edizione Commentata delle Opere di Dante» (vd. Roma, Salerno Editrice, 2015). Viene spiegato in che misura il codice Chigiano L VIII 305 della Biblioteca Apostolica Vaticana (siglato K) è stato utilizzato come manoscritto di riferimento per le varianti di forma. A partire dal caso specifico viene poi proposta una riflessione sulla restituzione formale degli antichi testi a tradizione plurima e una discussione sui criteri editoriali, tra conservazione e leggibilità.

The article comes on the sidelines of the new annotated edition with critically reviewed text of the Vita Nuova by Dante, in the scope of the «Nuova Edizione Commentata delle Opere di Dante» (see Roma, Salerno Editrice, 2015). The author explains how the code Chigiano L VIII 305 of the Biblioteca Apostolica Vaticana (signed K) was used as a reference manuscript for the formal variants. From the specific example the author proposes a reflection on the formal restituition of the plural tradition ancient texts and a discussion on the editorial criteria, between conservation and readability.
description: Carte romanze, Vol 3, No 1 (2015)
Graphene FET on diamond for high-frequency electronics
Creators: name: Asad, Muhammad
name: Majdi, Saman
name: Vorobiev, Andrei
name: Jeppson, Kjell
name: Isberg, Jan
name: Stake, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transistors operating at high frequencies are the basic building blocks of millimeter-wave communication and sensor systems. The high velocity and mobility of carriers in graphene can open way for ultra-fast group IV transistors with similar or even better performance than can be achieved with III-V based semiconductors. However, the progress of high-speed graphene transistors has been hampered due to fabrication issues, influence of adjacent materials, and self-heating effects. Here, we report a graphene field-effect transistor (FET) on a diamond substrate, with a $f_{max}$ up to 54 GHz for a gate length of 500 nm. The high thermal conductivity of diamond provides an efficient heat-sink, and its relatively high optical-phonon energy improves saturation velocity of carriers in the graphene channel. Moreover, we show that graphene FETs on diamond, with different gate lengths, exhibit excellent scaling behavior. These results indicate that graphene FETs on diamond technology can reach sub-terahertz frequency performance.
description: 4 pages, 5 figures, letter
Christlich-sozialethische Beiträge zu den wohnraumpolitischen Debatten der Bundesrepublik
Creators: name: Degan, Julian
name: Emunds, Bernhard
name: Meireis, Torsten
name: Wustmans, Clemens
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Die Wohnraumfrage stellt sich als drängende Gerechtigkeitsfrage in gegenwärtigen gesellschaftspolitischen Debatten, zu der sich die beiden großen Kirchen und die konfessionellen Theologien sozialethisch zu verhalten haben. Dabei kann an zeitgeschichtliche Diskurse angeknüpft werden, denn parallel zu politischen Konjunkturen des Themas haben sich die Vertreter der christlichen Sozialethik, fußend auf ihrem je konfessionell spezifischen Eigentumsverständnis, v. a. bis in die 1970er Jahre intensiv mit boden- und wohnungspolitischen Einwürfen zu Wort gemeldet. Schwerpunkte bildeten die Förderung des familiengerechten Eigenheims sowie Bodenreformansätze. Nach einem Abebben der Debatte ab den 1980er Jahren ist seit rund einer Dekade wieder eine intensivierteReflexion des Themas zu verzeichnen. In der Sozialethik ist dies nicht zuletzt die Folge eines „spatial turn“, aber auch neuere kirchliche Veröffentlichungen zur gegenwärtigen Wohnraumfragen zeugen von einem wiedererstarkten Interesse. Inhaltlich präsentiert sich die jüngere Diskussion weniger eigentumszentriert und stärker struktur-, gerechtigkeits- und nachhaltigkeitsorientiert, etwa durch die Reflexion von Divergenzen und Disparitäten zwischen städtischen und ländlichen Regionen, im Vergleich boomender und zunehmend abgehängter Regionen, von Gentrifizierungsprozessen und unter Einbezug sozialökologischer Kriterien. In der Sprache der Menschenrechte wird ein individuelles Grundrecht auf Wohnen diskutiert und in seiner Bedeutung für die Gesamtgesellschaft und ökologische Zusammenhänge thematisiert.
description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
Дефиниция и этноэкологические аспекты феномена «трагедии общинных ресурсов»
Creators: name: А.Н., Ямсков
Publisher: name: Zenodo
Year: 2012
Subjects: трагедия общинных ресурсов
tragedy of the commons
этноэкология
природопользование
социальная экология

description: Статья о феномене «трагедии общинных ресурсов» (tragedy of the commons) - о том, каково его содержание, при каких обстоятельствах он может проявляться и какими могут быть пути выхода из подобных ситуаций, как лучше перевести на русский язык сам термин, в каких областях науки оперируют этим понятием и какое место должен занимать данный феномен в университетских курсах по этноэкологии.
Quantum isotropy and the reduction of dynamics in Bianchi I
Creators: name: Beetle, Christopher
name: Engle, Jonathan Steven
name: Hogan, Matthew Ernest
name: Mendonça, Phillip
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The authors previously introduced a diffeomorphism-invariant definition of a homogeneous and isotropic sector of loop quantum gravity, along with a program to embed loop quantum cosmology into it. The present paper works out that program in detail for the simpler, but still physically non-trivial, case where the target of the embedding is the homogeneous, but not isotropic, Bianchi I model. The diffeomorphism-invariant conditions imposing homogeneity and isotropy in the full theory reduce to conditions imposing isotropy on an already homogeneous Bianchi I spacetime. The reduced conditions are invariant under the residual diffeomorphisms still allowed after gauge fixing the Bianchi I model. We show that there is a unique embedding of the quantum isotropic model into the homogeneous quantum Bianchi I model that (a) is covariant with respect to the actions of such residual diffeomorphisms, and (b) intertwines both the (signed) volume operator and at least one directional Hubble rate. That embedding also intertwines all other operators of interest in the respective loop quantum cosmological models, including their Hamiltonian constraints. It thus establishes a precise equivalence between dynamics in the isotropic sector of the Bianchi I model and the quantized isotropic model, and not just their kinematics. We also discuss the adjoint relationship between the embedding map defined here and a projection map previously defined by Ashtekar and Wilson-Ewing. Finally, we highlight certain features that simplify this reduced embedding problem, but which may not have direct analogues in the embedding of homogeneous and isotropic loop quantum cosmology into full loop quantum gravity.
description: 24 pages; some typos corrected, some minor presentational improvements made, and a minor error in a proof corrected
Un (nuovo) «Esopo» cinquecentesco: la «Vita di Esopo» del conte Giulio Landi
Creators: name: Barucci, Guglielmo
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Giulio Landi; Esopo; Aesopus; Paradosso; Paradox; Piacenza; Ortolani; Sileno; Silenus; Ortensio Lando

description: La volgarizzazione della Vita di Esopo a opera di Giulio Landi (1545) è stata caratterizzata da una lunga fortuna che ne ha fatto l’introduzione biografica “ufficiale” per secoli alle favole. Nondimeno, la traduzione del Landi era nata come testo autonomo, come chiaramente attestato dal paratesto. La Vita può essere letta su tre diversi livelli (comico, politico, filosofico-religioso) che per essere compresi debbono essere ricondotti tanto all’ambiente piacentino, specie con l’ambigua accademia degli Ortolani, quanto all’intera produzione del Landi e alla sua rete intellettuale.

The translation into Italian of the Aesopus’ Life by Giulio Landi (1545) has enjoyed a centuries-long diffusion as the standard biographic introduction to the Aesop’s fables. Actually, the paratext clearly certifies that Landi’s work was born as an autonomous text. The Life proposes three different levels of reading: comical, political, religious-philosophical. All of them have to be read in the frame both of the Piacenza milieu (mainly with the ambiguous Accademia degli Ortolan) and of the whole Landi’s production and cultural network.
description: Carte romanze, Vol 3, No 1 (2015)
Search for ultra-high energy photons using air showers
Creators: name: Risse, Markus
name: Homola, Piotr
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The observation of photons with energies above 10^18 eV would open a new window in cosmic-ray research, with possible impact on astrophysics, particle physics, cosmology and fundamental physics. Current and planned air shower experiments, particularly the Pierre Auger Observatory, offer an unprecedented opportunity to search for such photons and to complement efforts of multimessenger observations of the universe. We summarize motivation, achievements, and prospects of the search for ultra-high energy photons.
description: 18 pages, 7 figures, invited brief review for Modern Physics Letters A (MPLA)
Il volgarizzamento oitanico della «Navigatio Brendani» nel ms. Paris, BNF, fr. 1553 e il suo modello latino
Creators: name: De Martino, Giulia
name: Guglielmetti, Rossana
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Navigatio Sancti Brendani; volgarizzamenti; vernacular translations; letteratura antico-francese; Old-French literature

description: Il volgarizzamento della Navigatio Brendani tramandato nel ms. Paris, BnF, fr. 1553, che pare costituire una forma a sé stante nell’ambito delle testimonianze della versione oitanica in prosa, è qui esaminato in relazione alla tradizione latina dell’opera. Risulta cosí possibile individuare a quale gruppo nello stemma latino appartenesse l’esemplare preso a modello per la traduzione e verificare l’estrema fedeltà della versione, le cui apparenti peculiarità risalgono già quasi tutte al modello stesso. Il profilo del volgarizzatore che emerge dall’analisi è quello di un traduttore al servizio del testo latino, che evita iniziative individuali.

 The vernacular translation of Navigatio Brendani transmitted in Ms. Paris, BnF, fr. 1553, seemingly an unusual form of the Oitanic version in prose, is explored here in relation to the Latin tradition of the work. It is possible to identify which group of the Latin stemma the model for translation belonged to, and thus verify the extreme faithfulness of the translation itself: almost every apparent peculiarity of the Oitanic text dates back to the exemplar. Such an analysis reveals the translator’s profile as serving the Latin text and avoiding any free interpretation of the work.
description: Carte romanze, Vol 3, No 1 (2015)
Ethische Ansprüche an das eigene wirtschaftliche Handeln
Creators: name: Schneider, Martin
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Die Kirchen besitzen nicht unerhebliche Liegenschaften und Immobilien. Wie sie damit umgehen, ist eine Anfrage an ihre Glaubwürdigkeit. In Form einer Diskursanalyse werden Argumente sortiert und bewertet, die bei der Vergabe von kirchlichen Erbbaugrundstücken und im Umgang mit Wohnimmobilien eine Rolle spielen. Zunächst wird der kirchenrechtliche Rahmen abgesteckt. Wirtschaftsethische und gerechtigkeitstheoretische Argumente integrierend wird für die Einführung eines Kriterienkatalogs bei der Vergabe von Erbpachtgrundstücken plädiert. In einem zweiten Schritt werden die Diskussionen zu ethisch nachhaltigen Geldanlagen einbezogen, um die Perspektive Was mache ich mit den erwirtschafteten Gewinnen? zu weiten und die Perspektive Wie erwirtschafte ich Gewinne? in den Fokus zu rücken. Ausgehend von der Diagnose, dass dieses Niveau an ethischer Reflexion beim Umgang mit kirchlichen Liegenschaften und Wohnimmobilien noch nicht erreicht ist, wird in einem dritten Schritt dargelegt, warum es gerade bei der Wohnungsfrage wichtig ist, Handlungsbegründungen und -orientierungen jenseits von Barmherzigkeit und Caritas in den Blick zu nehmen. Nur dann ist es möglich, so die abschließende These, im Umgang mit Grundstücken und Wohnimmobilien eine transformative Rolle einzunehmen und eine gesamtgesellschaftliche Gestaltungsverantwortung zu übernehmen.
description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
$^{159}$Dy electron-capture: a strong new candidate for neutrino mass determination
Creators: name: Ge, Z.
name: Eronen, T.
name: Tyrin, K. S.
name: Kotila, J.
name: Kostensalo, J.
name: Nesterenko, D. A.
name: Beliuskina, O.
name: de Groote, R.
name: de Roubin, A.
name: Geldhof, S.
name: Gins, W.
name: Hukkanen, M.
name: Jokinen, A.
name: Kankainen, A.
name: Koszorús, Á.
name: Krivoruchenko, M. I.
name: Kujanpää, S.
name: Moore, I. D.
name: Raggio, A.
name: Rinta-Antila, S.
name: Suhonen, J.
name: Virtanen, V.
name: Weaver, A. P.
name: Zadvornaya, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: { The ground-state to ground-state electron-capture $Q$ value of $^{159}$Dy ($3/2^-$) has been measured directly utilizing the double Penning trap mass spectrometer JYFLTRAP. A value of 364.73(19)~keV was obtained from a measurement of the cyclotron frequency ratio of the decay parent $^{159}$Dy and the decay daughter $^{159}$Tb ions using the novel phase-imaging ion-cyclotron resonance technique. The $Q$ values for allowed Gamow-Teller transition to $5/2^-$ and the third-forbidden unique transition to $11/2^+$ state with excitation energies of 363.5449(14)~keV and 362.050(40)~keV in $^{159}$Tb were determined to be 1.18(19) keV and 2.68(19) keV, respectively. The high-precision $Q$ value of transition $3/2^-\to 5/2^-$ from this work, revealing itself as the lowest electron-capture $Q$ value, is utilized to unambiguously characterise all the possible lines that are present in its electron capture spectrum. { We performed atomic many-body calculations for both transitions to determine electron-capture probabilities from various atomic orbitals, and found an order of magnitude enhancement in the event rates near the end-point of energy spectrum in the transition to the $5/2^-$ nuclear excited state, which can become very interesting once the experimental challenges of identifying decays into excited states are overcome. The transition to the $11/2^+$ state is strongly suppressed and found unsuitable for measuring the neutrino mass. These results show that the electron capture in the $^{159}$Dy atom, going to the $5/2^-$ state of the $^{159}$Tb nucleus, %\textcolor{red} {is a new candidate which may open the way to determine the electron-neutrino mass in the sub-eV region by studying EC. Further experimental feasibility studies, including coincidence measurements with realistic detectors, will be of great interest.} }
description: 6 pages, 2 figures
Quantum-critical dynamics of a Josephson junction at the topological transition
Creators: name: Kurilovich, Vladislav D.
name: Murthy, Chaitanya
name: Kurilovich, Pavel D.
name: van Heck, Bernard
name: Glazman, Leonid I.
name: Nayak, Chetan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We find the admittance $Y(ω)$ of a Josephson junction at or near a topological transition. The dependence of the admittance on frequency and temperature at the critical point is universal and determined by the symmetries of the system. Despite the absence of a spectral gap at the transition, the dissipative response may remain weak at low energies: $\mathrm{Re}\,Y(ω)\propto \max (ω, T)^2$. This behavior is strikingly different from the electromagnetic response of a normal metal. Away from the critical point, the scaling functions for the dependence of the admittance on frequency and temperature are controlled by at most two parameters.
description: 27 pages, 7 figures
Ladder resummation of spin 1/2 fermion many-body systems with arbitrary partial-wave content
Creators: name: Alarcón, J. M.
name: Oller, J. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We resum the ladder diagrams for the calculation of the energy density $\cal{E}$ of a spin 1/2 fermion many-body system in terms of arbitrary vacuum two-body scattering amplitudes. The partial-wave decomposition of the in-medium two-body scattering amplitudes is developed, and the expression for calculating $\cal{E}$ in a partial-wave amplitude expansion is also given. The case of contact interactions is completely solved and is shown to provide renormalized results, expressed directly in terms of scattering data parameters, within cutoff regularization in a wide class of schemes. $S$- and $P$-wave interactions are considered up to including the first three-terms in the effective-range expansion, paying special attention to the parametric region around the unitary limit.
description: 58 pages, 16 figures, 2 table. New version to match the accepted manuscript in Annals of Physics. Pole content and pairing is further discussed
Il sonetto provenzale di Paolo Lanfranchi tra Raimbaut de Vaqueiras e la corte d’Aragona
Creators: name: Mascitelli, Cesare
Publisher: name: Università degli Studi di Milano
Year: 2015
Subjects: Paolo Lanfranchi; sonetto provenzale; provençal sonnet; Pietro III d'Aragona; Peter III of Aragon; Raimbaut de Vaqueiras; Catalogna; Catalonia

description: Il contributo esamina, nella prima parte, il sonetto provenzale di Paolo Lanfranchi e lo contestualizza, sulla base dei contenuti storici e dei rapporti della produzione lanfranchiana con la poesia trobadorica di pertinenza catalana, all’interno della corte barcellonese di Pietro III d’Aragona, dove Lanfranchi potrebbe aver soggiornato nel 1285. Nella seconda parte si osservano, invece, i punti di tangenza testuale tra il sonetto e alcuni componimenti di Raimbaut de Vaqueiras, la cui conoscenza da parte di Lanfranchi sarebbe avvenuta proprio in occasione del suo soggiorno a Barcellona.

The contribution of this article is twofold. The first part of the work links Paolo Lanfranchi’s provençal sonnet with Peter III of Aragon royal court background, where Lanfranchi might have been in 1285. The hypothesis is based on both the historical contents of the sonnet and the connection between Lanfranchi’s poems and Occitan lyric tradition in Catalonia. The second part elaborates on the sources of the sonnet and identifies them in three poems by Raimbaut de Vaqueiras, which Lanfranchi might have discovered during his stay in Barcelona.
description: Carte romanze, Vol 3, No 1 (2015)
Anton Rauscher, der prinzipientreue Soziallehrer
Creators: name: Nothelle-Wildfeuer, Ursula
Publisher: name: Jahrbuch für Christliche Sozialwissenschaften
Year: 2021

description: Jahrbuch für Christliche Sozialwissenschaften, Bd. 62 (2021): Wohnen - gutes Leben - Gerechtigkeit
Compact Groups of Galaxies in Sloan Digital Sky Survey and LAMOST Spectral Survey. II. Dynamical Properties of Isolated and Embedded Groups
Creators: name: Zheng, Yunliang
name: Shen, Shiyin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Compact groups (CGs) of galaxies appear to be the densest galaxy systems containing a few luminous galaxies in close proximity to each other, which have a typical size of a few tens kilopacsec in observation. On the other hand, in the modern hierarchical structure formation paradigm, galaxies are assembled and grouped in dark matter haloes, which have a typical size of a few hundreds of kiloparsec. Few studies have explored the physical connection between the observation based CGs and halo model based galaxy groups to date. In this study, by matching the largest local CG catalog of Zheng & Shen (2020) to the halo based group catalog of Yang et al. (2007), we find that the CGs are physically heterogenous systems and can be mainly separated into two categories, the isolated systems and those embedded in rich groups or clusters. By examining the dynamical features of CGs, we find that the isolated CGs have systematically lower dynamical masses than that of non-compact ones at the same group luminosity, indicating a more evolved stage of isolated CGs. On the other hand, the embedded CGs are mixtures of chance alignments in poor clusters and recent infalling groups (sub-structures) of rich clusters.
description: 16 pages, 9 figures, Corrected typos