cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Formula e metafora
Creators: name: Castellari (Ed.), Marco
Publisher: name: di/segni
Year: 2014

description: In un frammento pubblicato il 10 dicembre 1810 nei suoi «Berliner Abendblätter», Heinrich von Kleist sosteneva che “gli uomini si potrebbero dividere in due categorie: quelli che si intendono di metafore e quelli che si intendono di formule”. A due secoli di distanza, questo volume prende a prestito la coppia kleistiana “formula e metafora” per indagare le sorti dello scienziato come personaggio nelle letterature e culture di una contemporaneità intesa nel senso più ampio possibile. Lo scienziato – benefattore o criminale, saggio o irresponsabile, opportunista o pazzo, freddo calcolatore o debole strumento del potere, personaggio comico o tragico, drammatico o grottesco – è uno dei protagonisti della cultura contemporanea. Che si tratti di personalità storiche o di figure d’invenzione, alimentate da prototipi letterari e da stereotipi di varia matrice, uomini di scienza popolano le più varie opere di finzione da fine Ottocento a oggi: il volume ne indaga ventisei esempi, spaziando fra letteratura, teatro e cinema nei mondi di lingua francese, inglese, italiana, polacca, russa, spagnola, svedese e tedesca. Le molteplici declinazioni del personaggio-scienziato sono lo specchio più o meno deformato di eventi e problemi che hanno alimentato l’inesausto interrogarsi dell’intellettuale moderno sul rapporto fra scienza, arte e società. Al contempo, esse rivelano nelle loro radici il perdurare di antiche e moderne figurazioni mitologico-letterarie, trasformate da scrittori e artisti per interpretare consapevolmente il passato e il presente. Contributi di: Alberto Bentoglio, Luca Bernardini, Paola Bozzi, Nicoletta Brazzelli, Chiara Maria Buglioni, Marco Canani, Marco Castellari, Mariacristina Cavecchi, Liudmila Chapovalova, Alessandro Costazza, Elda Garetto, Alessandra Goggio, Franz Haas, Danilo Manera, Marco Modenesi, Liana Nissim, Francesca Orestano, Carlo Pagetti, Moira Paleari, Giulia Peroni, Francesca Ripamonti, Maria Luisa Roli, Camilla Storskog, Nicoletta Vallorani, Raffaella Vassena, Alessandro Vescovi.
description: di/segni, Formula e metafora. Figure di scienziati nelle letterature e culture contemporanee
Subaru Hyper Suprime-Cam Survey of Cygnus OB2 Complex -- I: Introduction, Photometry and Source Catalog
Creators: name: Gupta, Saumya
name: Jose, Jessy
name: More, Surhud
name: Das, Swagat R.
name: Herczeg, Gregory J.
name: Samal, Manash R.
name: Guo, Zhen
name: Prakash, Prem
name: Damian, Belinda
name: Takami, Michihiro
name: Takahashi, Satoko
name: Ogura, Katsuo
name: Terai, Tsuyoshi
name: Pyo, Tae-Soo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Low mass star formation inside massive clusters is crucial to understand the effect of cluster environment on processes like circumstellar disk evolution, planet and brown dwarf formation. The young massive association of Cygnus OB2, with a strong feedback from massive stars, is an ideal target to study the effect of extreme environmental conditions on its extensive low-mass population. We aim to perform deep multi-wavelength studies to understand the role of stellar feedback on the IMF, brown dwarf fraction and circumstellar disk properties in the region. We introduce here, the deepest and widest optical photometry of 1.5$^\circ$ diameter region centred at Cygnus OB2 in r$_{2}$, i$_{2}$, z and Y-filters using Subaru Hyper Suprime-Cam (HSC). This work presents the data reduction, source catalog generation, data quality checks and preliminary results about the pre-main sequence sources. We obtain 713,529 sources in total, with detection down to $\sim$ 28 mag, 27 mag, 25.5 mag and 24.5 mag in r$_{2}$, i$_{2}$, z and Y-band respectively, which is $\sim$ 3 - 5 mag deeper than the existing Pan-STARRS and GTC/OSIRIS photometry. We confirm the presence of a distinct pre-main sequence branch by statistical field subtraction of the central 18$^\prime$ region. We find the median age of the region as $\sim$ 5 $\pm$ 2 Myrs with an average disk fraction of $\sim$ 9$\%$. At this age, combined with A$_V$ $\sim$ 6 - 8 mag, we detect sources down to a mass range $\sim$ 0.01 - 0.17 M$_\odot$. The deep HSC catalog will serve as the groundwork for further studies on this prominent active young cluster.
description: Accepted for publication in Monthly Notices of Royal Astronomical Society (MNRAS), 20 pages, 21 figures, 4 Tables, typos corrected
Il fascino inquieto dell’utopia
Creators: name: De Michelis, Lidia
name: Iannaccaro, Giuliana
name: Vescovi (Eds.), Alessandro
Publisher: name: di/segni
Year: 2014

description: Marialuisa Bignami, cui questo volume è dedicato, è una tra le più illustri studiose dell’utopia letteraria in Italia. In dialogo con la sua opera critica, il volume discute origini ed esiti del concetto di utopia nel panorama letterario e sociale occidentale, in particolare anglosassone. La riflessione prende le mosse da un’elaborazione di stampo millenarista del pensiero utopico, per proseguire nell’indagine dei suoi esiti letterari tardorinascimentali, settecenteschi e anche coloniali; si approda infine alle utopie moderne, postmoderne e femministe del nostro tempo, senza tralasciare gli esiti dell’immaginario utopico nella cultura di massa. L’utopia, un po’ come il romanticismo, sembra essere una necessità della cultura occidentale, una categoria dello spirito, che può essere reinterpretata, negata, persino vilipesa, ma non abbandonata. I percorsi attraverso le mutazioni spazio-temporali dell’utopia raccolti in questo volume sono ispirati ad approcci critici diversi e sono trasversali a più ambiti di ricerca; la ricchezza del dibattito invita a proseguire l’indagine sui volti molteplici del genere utopico, anche attraverso l’esplorazione di nuove interazioni e di nuovi linguaggi.
description: di/segni, Il fascino inquieto dell’utopia. Percorsi storici e letterari in onore di Marialuisa Bignami
Letter from Kathleen Raine to Percy Jarrett, February 28, [1983]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Jarrett, Elizabeth
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Skelton, Sylvia
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Jarrett, Percy W.

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this letter, in light of Jarrett's health troubles, Raine writes about different theories about souls and what comes after death.
Four-loop lattice-regularized vacuum energy density of the three-dimensional SU(3) + adjoint Higgs theory
Creators: name: Di Renzo, F.
name: Laine, M.
name: Schroder, Y.
name: Torrero, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pressure of QCD admits at high temperatures a factorization into purely perturbative contributions from "hard" thermal momenta, and slowly convergent as well as non-perturbative contributions from "soft" thermal momenta. The latter can be related to various effective gluon condensates in a dimensionally reduced effective field theory, and measured there through lattice simulations. Practical measurements of one of the relevant condensates have suffered, however, from difficulties in extrapolating convincingly to the continuum limit. In order to gain insight on this problem, we employ Numerical Stochastic Perturbation Theory to estimate the problematic condensate up to 4-loop order in lattice perturbation theory. Our results seem to confirm the presence of "large" discretization effects, going like $a\ln(1/a)$, where $a$ is the lattice spacing. For definite conclusions, however, it would be helpful to repeat the corresponding part of our study with standard lattice perturbation theory techniques.
description: 35 pages. v2: minor corrections, published version
Time-dependent properties of sunspot groups -- I. Lifetime and asymmetric evolution
Creators: name: Forgács-Dajka, Emese
name: Dobos, László
name: Ballai, István
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aims. In this paper, we aim to study the time dependence of sunspot group areas in a large sample composed of various databases spanning over 130 years, used state-of-the-art statistical methods. Methods. For a carefully selected but unbiased sample, we use Bayesian modelling to fit the temporal evolution of the combined umbral and penumbral area of spot groups with a skew-normal function to determine the existence of any asymmetry in spot growth or decay. Our primary selection criteria guaranteed that only spot groups with a well-defined maximum area were taken into account. We also analysed the covariance of the resulting model parameters and their correlations with the physical parameters of the sunspots and the ongoing solar cycle. Results. Our results show that the temporal evolution of well-observed sunspot groups that reach at least 50 millionths of a solar hemisphere (MSH) at their maximum can be fitted surprisingly well with our model. Furthermore, we show significant asymmetry - described by a skew parameter of fitted curves - between the growing and decaying phases of analysed sunspot groups. In addition, we found a weak correlation between the values of skew parameters and the maximum area of sunspot groups and their hemispherical latitude.
description: 10 pages, accepted in Astronomy and Astrophysics
title: Thaumàzein | Rivista di Filosofia, Vol 1 (2013): Cura sui e autotrascendimento. La formazione di sé fra antico e postmoderno.
title: Cura sui e autotrascendimento. La formazione di sé fra antico e postmoderno.
titleType: AlternativeTitle
Creators: name: Thaumàzein | Rivista Di Filosofia
Publisher: name: Thaumàzein | Rivista di Filosofia
Year: 2013

description: INTRODUZIONE...VII-IX
Alle radici della cura...11-33
Il problema dell’orientamento nella soci età liquida: autotrascendimento e aver cura come eserci zio di trasformazione...35-84
Cura di sé, cura dell’altro...85-102
«Das Entstehen von allem» Zum Seelenbegriff des späten Plato...105-119
Cura, eros, felicità. Sull’antropologia di Platone...121-148
La cura di sé come ‘agatofanía’. Esperienza del Bene e autotrascendimento nell a filosofia di Platone....149-164
Ordine e cura: la legge nella concezione platonica del sé...165-185
Alcibiade e il morso di Socrate: un caso di coscienza...187-205
Come fondare nella scrittura un luogo comune? Platone critico della comunicazione...207-223
Cuidado de sí y “familiaridad” en el estoicismo: ¿Cuán egoísta y cuán altruista es la ética estoica?...225-255
Gutsein und Streben. Jenseits von Wertobjektivismus und Wertsubjektivismus?...259-279
Le direzioni di significato antropologiche dell'orizzontalità e della verticalità...281-289
Pesci rossi, filosofi e acrobazie. L’impossibile morale di Michel Foucault...291-304
Imagining a Caring Self in the Age of Post-Subjectivity. A modest Proposal...305-319
Orientamento e sfera affettiva: l'ortonomia del sentire in Franz Brentano...321-336
การศึกษาความหลากหลายทางพันธุกรรมและโครงสร้างประชากรของ Vigna exilis และ Vigna grandiflora โดยใช้เครื่องหมายไมโครแซทเทลไลท์ (Genetic Diversity and Population Structure of  Vigna exilis  and  Vigna grandiflora  based on
Microsatellite Variation)
Creators: name: อโนชา แก้ววงษ์วาลย์
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: azuki bean, microsatellite marker, mung bean, population genetics, SSR

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
ความสัมพันธ์ด้านเครื่องหมายโมเลกุลชนิด SSR และขนาดโครโมโซมของพืชในสกุล Jatropha บางชนิด (Relationship Based on SSR Markers and Chromosome Size of Some  Jatropha spp.)
Creators: name: ปัญจรัตน์ เลิศหัสดีรัตน์
Publisher: name: Genetics Society of Thailand
Year: 2013
Subjects: Jatropha spp, SSR, chromosome

description: S1 (Special Issue 1), S.1, Thai Journal of Genetics
LiveDocs: Crafting Research-Based Interactive Environments
Creators: name: Costa Klein, Pedro
Publisher: name: Zenodo
Year: 2025

description: The “Collaborative Research Center 1456 ‐ Mathematics of Experiment” (CRC 1456) aims at the develop‐ment of mathematical theory and tools to extract maximal information from data acquired in experimentalresearch in natural sciences. This project is aligned with Open Science ideals, which puts its infrastructuresubproject (INF) under the mission of promoting such principles throughout other subprojects. The INFproject works primarily under three fronts: research data management (RDM) support, research dissem‐ination, and training on RDM‐relevant topics.Such effort yielded fruitful outcomes such as the development of a platform for research dissemina‐tion: LiveDocs. LiveDocs is an initiative of the CRC 1456 on tackling common issues of reproducibilityand re‐usability in scientific publications. LiveDocs is proposed as a concept alongside a collection ofmethods that enable scientists to provide research findings under an interactive development environ‐ment, allowing users from a broader audience to easily reproduce research findings by re‐running scriptspertaining to a publication under such environment. This approach lowers the barriers to access andcomprehend research methods and findings, which facilitates scientific exchange and fosters knowledgeadvancement.In this poster, readers will be presented with an in‐depth visualization on LiveDocs and some LiveDocsshowcases.
The U(1)-Kepler Problems
Creators: name: Meng, Guowu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Let $n\ge 2$ be a positive integer. To each irreducible representation $σ$ of $\mr U(1)$, a $\mr U(1)$-Kepler problem in dimension $(2n-1)$ is constructed and analyzed. This system is super integrable and when $n=2$ it is equivalent to a MICZ-Kepler problem. The dynamical symmetry group of this system is $\widetilde {\mr U}(n, n)$, and the Hilbert space of bound states ${\ms H}(σ)$ is the unitary highest weight representation of $\widetilde {\mr U}(n, n)$ with highest weight $$(\underbrace{-1/2, ..., -1/2}_n, 1/2+\bar σ, \underbrace{1/2, ..., 1/2}_{n-1})$$ when $\bar σ\ge 0$ or $$(\underbrace{-1/2, ..., -1/2}_{n-1}, -1/2+\bar σ, \underbrace{1/2, ..., 1/2}_n)$$ when $\bar σ\le 0$. (Here $\barσ$ is the infinitesimal character of $σ$.) Furthermore, it is shown that the correspondence between $σ^*$ (the dual of $σ$) and $\ms H(σ)$ is the theta-correspondence for dual pair $(\mr{U}(1), {\mr U}(n,n))$ in $\mr{Sp}(4n, \bb R)$.
description: 13 pages, more details
Letter from Kathleen Raine to Percy and Elizabeth Jarrett, November 20, [1982]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Skelton, Sylvia
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Jarrett, Percy W.
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Jarrett, Elizabeth
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this letter, Raine writes about her current projects.
Community Cluster "Authority Files and community-driven Vocabularies". Kick-off-Meeting 3. April 2025
Creators: name: Gerber, Anja
name: Arera-Rütenik, Tobias
Publisher: name: Zenodo
Year: 2025
Subjects: Community Cluster
NFDI4Objects
Normdaten
Vokabulare
Terminologien
SKOS
Thesauri
Glossare
Authority Files
Archäologie
Sammlungen
Kulturerbe
Objektdaten
CIDOC CRM
Datenintegration
Datenharmonisierung
Vocabularies
Temporary Working Groups

description: Das sind die Folien des ersten Treffens des NFDI4Objects Community Clusters “Authority Files and community-driven Vocabularies". Hier werden die Ausgangssituation in N4O, die Zielstellungen des CC vorgestellt und Beteiligungsmöglichkeiten aufgezeigt.
ARTISHOK (CYNARA L.) TURLARINING BIOLOGIK FAOLLIGI VA KLINIK TADQIQOTLAR
Creators: name: Mahammadiyev, Jasur
name: Abdivoitova, Shohida
name: Erkinova, Zuhra
name: Toshqulov, Toshxumor
Publisher: name: Zenodo
Year: 2025

description: Artishok (Cynara L.)da mineral moddalar (K, P, Fe, Na, Ca vitaminlari (A, B1, B2,). B6 va C), fenolik birikmalar ham mavjud. Artishoklarni mavsumda yangi, muzlatilgan yoki konservalangan holda iste’mol qilish mumkin. Shu bilan birga, artishok oʻsimligining barglari farmatsevtika sanoatida qoʻllaniladi.
Charlotte Setijadi: Memories of Unbelonging: Ethnic Chinese Identity Politics in Post-Suharto Indonesia
Creators: name: Mayasari-Hoffert, Silvia
Publisher: name: International Quarterly for Asian Studies
Year: 2024

description: International Quarterly for Asian Studies, Vol. 55 No. 2 (2024): Politics of Marginalisation in Indonesia: The Jokowi Era
Postcard from Kathleen Raine to Percy Jarrett, March 23, [1983]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Skelton, Sylvia
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Jarrett, Elizabeth
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Jarrett, Percy W.
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this postcard Raine discusses aging and what might come after death.
Angle-resolved photoemission spectroscopy of electron-doped cuprate superconductors: Isotropic electron-phonon coupling
Creators: name: Park, Seung Ryong
name: Song, D. J.
name: Leem, C. S.
name: Kim, Chul
name: Kim, C.
name: Kim, B. J.
name: Eisaki, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have performed high resolution angle resolved photoemission (ARPES) studies on electron doped cuprate superconductors Sm2-xCexCuO4 (x=0.10, 0.15, 0.18), Nd2-xCexCuO4 (x=0.15) and Eu2-xCexCuO4 (x=0.15). Imaginary parts of the electron removal self energy show step-like features due to an electron-bosonic mode coupling. The step-like feature is seen along both nodal and anti-nodal directions but at energies of 50 and 70 meV, respectively, independent of the doping and rare earth element. Such energy scales can be understood as being due to preferential coupling to half- and full-breathing mode phonons, revealing the phononic origin of the kink structures. Estimated electron-phonon coupling constant lambda from the self energy is roughly independent of the doping and momentum. The isotropic nature of lambda is discussed in comparison with the hole doped case where a strong anisotropy exists.
description: 5 pages, 4 figures
Weyl Nodal-Ring Semimetallic Behavior and Topological Superconductivity in Crystalline Forms of Su-Schrieffer-Heeger Chains
Creators: name: Rosenberg, Peter
name: Manousakis, Efstratios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider a three-dimensional model of coupled Su-Schrieffer-Heeger (SSH) chains. The analytically soluble model discussed here reliably reproduces the features of the band structure of crystalline polyacetylene as obtained from density-functional theory. We show that when a certain inter-chain coupling is sufficiently increased, the system develops a ring of Weyl nodes. We argue that such an increase could be achieved experimentally by intercalation or extreme pressure. With the addition of a simple intra-orbital pairing term we find that the system supports an exotic superconducting state with drumhead surface states and annular Majorana states localized on the surface. In addition to suggesting a novel real material realization of a nodal ring semimetal and possibly topological superconductivity, our results provide a new perspective on the SSH model, demonstrating that a simple extension of this broadly-impacting model can once again provide fundamental insights on the topological behavior of condensed matter systems.
description: 7 pages, 7 figures
Chiral Dirac Equation and Its Spacetime and CPT Symmetries
Creators: name: Watson, Timothy B.
name: Musielak, Zdzislaw E.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Dirac equation with chiral symmetry is derived using the irreducible representations of the Poincaré group, the Lagrangian formalism, and a novel method of projection operators that takes as its starting point the minimal assumption of four linearly independent physical states. We thereby demonstrate the fundamental nature of this form of the Dirac equation. The resulting equation is then examined within the context of spacetime and CPT symmetries with a discussion of the implications for the general formulation of physical theories.
Correcting direction-dependent gains in the deconvolution of radio interferometric images
Creators: name: Bhatnagar, S.
name: Cornwell, T. J.
name: Golap, K.
name: Uson, Juan M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Astronomical imaging using aperture synthesis telescopes requires deconvolution of the point spread function as well as calibration of instrumental and atmospheric effects. In general, such effects are time-variable and vary across the field of view as well, resulting in direction-dependent (DD), time-varying gains. Most existing imaging and calibration algorithms assume that the corruptions are direction independent, preventing even moderate dynamic range full-beam, full-Stokes imaging. We present a general framework for imaging algorithms which incorporate DD errors. We describe as well an iterative deconvolution algorithm that corrects known DD errors due to the antenna power patterns and pointing errors for high dynamic range full-beam polarimetric imaging. Using simulations we demonstrate that errors due to realistic primary beams as well as antenna pointing errors will limit the dynamic range of upcoming higher sensitivity instruments and that our new algorithm can be used to correct for such errors. We have applied this algorithm to VLA 1.4 GHz observations of a field that contains two ``4C'' sources and have obtained Stokes-I and -V images with systematic errors that are one order of magnitude lower than those obtained with conventional imaging tools. Our simulations show that on data with no other calibration errors, the algorithm corrects pointing errors as well as errors due to known asymmetries in the antenna pattern.
description: submitted to A&A; some clarifications added in the text; accepted for publication in A&A
Cervical Cytology Classification Using PCA & GWO Enhanced Deep Features Selection
Creators: name: Basak, Hritam
name: Kundu, Rohit
name: Chakraborty, Sukanta
name: Das, Nibaran
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Cervical cancer is one of the most deadly and common diseases among women worldwide. It is completely curable if diagnosed in an early stage, but the tedious and costly detection procedure makes it unviable to conduct population-wise screening. Thus, to augment the effort of the clinicians, in this paper, we propose a fully automated framework that utilizes Deep Learning and feature selection using evolutionary optimization for cytology image classification. The proposed framework extracts Deep feature from several Convolution Neural Network models and uses a two-step feature reduction approach to ensure reduction in computation cost and faster convergence. The features extracted from the CNN models form a large feature space whose dimensionality is reduced using Principal Component Analysis while preserving 99% of the variance. A non-redundant, optimal feature subset is selected from this feature space using an evolutionary optimization algorithm, the Grey Wolf Optimizer, thus improving the classification performance. Finally, the selected feature subset is used to train an SVM classifier for generating the final predictions. The proposed framework is evaluated on three publicly available benchmark datasets: Mendeley Liquid Based Cytology (4-class) dataset, Herlev Pap Smear (7-class) dataset, and the SIPaKMeD Pap Smear (5-class) dataset achieving classification accuracies of 99.47%, 98.32% and 97.87% respectively, thus justifying the reliability of the approach. The relevant codes for the proposed approach can be found in: https://github.com/DVLP-CMATERJU/Two-Step-Feature-Enhancement
description: 28 pages
Mechanism of robust circadian oscillation of KaiC phosphorylation in vitro
Creators: name: Eguchi, Kohei
name: Yoda, Mitsumasa
name: Terada, Tomoki P.
name: Sasai, Masaki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: By incubating the mixture of three cyanobacterial proteins, KaiA, KaiB, and KaiC, with ATP in vitro, Kondo and his colleagues reconstituted the robust circadian rhythm of the phosphorylation level of KaiC (Science, 308; 414-415 (2005)). This finding indicates that protein-protein interactions and the associated hydrolysis of ATP suffice to generate the circadian rhythm. Several theoretical models have been proposed to explain the rhythm generated in this "protein-only" system, but the clear criterion to discern different possible mechanisms was not known. In this paper, we discuss a model based on the two basic assumptions: The assumption of the allosteric transition of a KaiC hexamer and the assumption of the monomer exchange between KaiC hexamers. The model shows a stable rhythmic oscillation of the phosphorylation level of KaiC, which is robust against changes in concentration of Kai proteins. We show that this robustness gives a clue to distinguish different possible mechanisms. We also discuss the robustness of oscillation against the change in the system size. Behaviors of the system with the cellular or subcellular size should shed light on the role of the protein-protein interactions in in vivo circadian oscillation.
Charge transport and determinants
Creators: name: Bachmann, S.
name: Graf, G. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review some known facts in the transport theory of mesoscopic systems, including counting statistics, and discuss its relation with the mathematical treatment of open systems.
description: Plenary talk given by G.M.G. at QMath10, Moeciu, Romania, September 10-15, 2007
High-frequency blockade in a tight-binding one-dimensional lattice with single vibrating atomic state
Creators: name: Entin, M. V.
name: Mahmoodian, M. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: One-dimensional tight-binding lattice, single site of which possesses harmonically vibrating level is studied. The states of non-interacting electrons incident with fixed energy from infinity are considered. It is shown that at definite conditions the site reflects electrons {\it absolutely and elastically} (high-frequency blockade states). The problem is treated both numerically and (in the case of narrow band) analytically. The results are compared with the free-electron 1D problem with vibrating $δ$-functional potential. Together with the blockade states the local and reflectionless states are examined. Possible realization of the system as a lattice of quantum dots is discussed.
description: 4 pages, 8 figures
Self-directed retirement learning by female teachers
Creators: name: Curry, Avita Marie
Publisher: name: University of British Columbia
Year: 2010

description: The situation of people in their retirement years is becoming an issue of broad social concern. If retirement is to be worth looking forward to and worth having, it must be planned. Adults may become their own teachers in retirement learning or turn over this responsibility to another individual, group, or material resource. The approach taken by Tough (1971) and others investigated the behavior of people who design their own learning projects in contrast to the taxonomic approach common to the instructional enterprise inferred from the way teachers teach. The present study adds to the knowledge of the self-planned inquiry of adults of various age groups and stages in their careers. The purposes of this study were: 1) to determine the nature and extent of teachers' retirement learning projects; 2) to compare the nature and extent of the projects undertaken by pre-retired and retired teachers. For this study, two groups of female teachers were selected from the Vancouver School District in British Columbia. Group One consisted of ten teachers between the ages of sixty and sixty-four who were actively engaged in teaching at the time of the study. Group Two consisted of ten retired teachers between the ages of sixty-five and sixty-nine. Data were collected through indepth interviews using a survey instrument adapted from those originally developed by Tough at the Ontario Institute for Studies in Education. The average number of retirement learning projects conducted was ten. There was no significant association between the number of learning projects undertaken and personal characteristics of age, marital status and educational achievement. Most learning projects occurred in response to perceived needs in retirement. These needs included: financial security, work or service, social interaction, health maintenance, change or improvement in residence. Over sixty percent of the projects were self-planned. Teachers most frequently approached people and used printed material as the major resources for their learning. Learning for credit represented only twelve percent of the 200 learning projects conducted. For the 200 learning projects reported the average number of learning difficulties each teacher encountered was 6.35. The three most common difficulties were: 1) finding and arranging time for learning; 2) being able to read all that is available; 3) keeping other concerns from interrupting the learning. Teachers suggested many ways in which the teaching profession and society could be changed to facilitate their learning efforts. The implications for the teaching profession and society should be pursued relative to the needs, resources and learning difficulties these professionals experienced in self-directed learning pertaining to retirement learning.
A functional of the one-body-reduced density matrix derived from the homogeneous electron gas: Performance for finite systems
Creators: name: Lathiotakis, N. N.
name: Helbig, N.
name: Zacarias, A.
name: Gross, E. K. U.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: An approximation for the exchange-correlation energy of reduced-density-matrix-functional theory was recently derived from a study of the homogeneous electron gas (N.N. Lathiotakis, N. Helbig, E.K.U. Gross, Phys. Rev. B 75, 195120 (2007)). In the present work, we show how this approximation can be extended appropriately to finite systems, where the Wigner Seitz radius r_s, the parameter characterizing the constant density of the electron gas, needs to be replaced. We apply the functional to a variety of molecules at their equilibrium geometry, and also discuss its performance at the dissociation limit. We demonstrate that, although originally derived from the uniform gas, the approximation performs remarkably well for finite systems.
description: 5 pages, 2 figueres
D6.4 - Dissemination, outreach and clustering activities
Creators: name: START project
Publisher: name: Zenodo
Year: 2023
Subjects: Dissemination and outreach activities
Clustering
Technical and scientific dissemination

description: The present deliverable reports on the activity of WP6 “Dissemination and Communication” in the period 1st December 2022 – 31st May 20231 (M07-M12 of the START project).It covers the endeavours within the following tasks (the ones running in said period):• Task 6.1: Specific project dissemination and communication tools• Task 6.2: Technical and scientific dissemination• Task 6.4: Clustering
Single top: prospects at LHC
Creators: name: Cristinziani, Markus
name: Petrucciani, Giovanni
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Single top quark processes are interesting as direct probes of the $Wtb$ vertex, and are also an important background in searches of the Higgs boson and beyond the standard model physics. Both ATLAS and CMS have performed studies with simulated data to estimate the expected uncertainty on the production cross section measurements of the three single top processes ($t$-channel, s-channel, $tW$ production) in the first years of LHC operations. Results in the different channels and for the two experiments are reported.
description: 8 pages, 4 figures, presented at TOP2008: International Workshop on Top-Quark Physics, La Biodola, Isola d'Elba, Italy, 18-24 May 2008
Taxonomy of Brane Gravity Localisations
Creators: name: Erickson, C. W.
name: Leung, Rahim
name: Stelle, K. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Generating an effective theory of lower-dimensional gravity on a submanifold within an original higher-dimensional theory can be achieved even if the reduction space is non-compact. Localisation of gravity on such a lower-dimensional worldvolume can be interpreted in a number of ways. The first scenario, Type I, requires a mathematically consistent Kaluza-Klein style truncation down to a theory in the lower dimension, in which case solutions purely within that reduced theory exist. However, that situation is not a genuine localisation of gravity because all such solutions have higher-dimensional source extensions according to the Kaluza-Klein ansatz. Also, there is no meaningful notion of Newton's constant for such Type I constructions. Types II and III admit coupling to genuinely localised sources in the higher-dimensional theory, with corresponding solutions involving full sets of higher-dimensional modes. Type II puts no specific boundary conditions near the worldvolume aside from regularity away from sources. In a case where the wave equation separated in the non-compact space transverse to the worldvolume admits a normalisable zero mode, the Type III scenario requires boundary conditions near the worldvolume that permit the inclusion of that zero mode in mode expansions for gravitational wave fluctuations or potentials. In such a case, an effective theory of lower-dimensional gravity can emerge at sufficiently large worldvolume distance scales. This taxonomy of brane gravity localisations is developed in detail for linearised perturbations about a background incorporating the vacuum solution of Salam-Sezgin theory when embedded into ten-dimensional supergravity with a hyperbolic non-compact transverse space. Interpretations of the Newton constant for the corresponding Type III localisation are then analysed.
description: 49+20 pages, 5 figures
COMSOL implementation of the H-$ϕ$-formulation with thin cuts for modeling superconductors with transport currents
Creators: name: Arsenault, Alexandre
name: Alves, Bruno de Sousa
name: Sirois, Frédéric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Despite the acclaimed success of the magnetic field (H) formulation for modeling the electromagnetic behavior of superconductors with the finite element method, the use of vector-dependent variables in non-conducting domains leads to unnecessarily long computation times. In order to solve this issue, we have recently shown how to use a magnetic scalar potential together with the H-formulation in the COMSOL Multiphysics environment to efficiently and accurately solve for the magnetic field surrounding superconducting domains. However, from the definition of the magnetic scalar potential, the non-conducting domains must be made simply connected in order to obey Ampere's law. In this work, we use thin cuts to apply a discontinuity in $ϕ$ and make the non-conducting domains simply connected. This approach is shown to be easily implementable in the COMSOL Multiphysics finite element program, already widely used by the applied superconductivity community. We simulate three different models in 2-D and 3-D using superconducting filaments and tapes, and show that the results are in very good agreement with the H-A and H-formulations. Finally, we compare the computation times between the formulations, showing that the H-$ϕ$-formulation can be up to seven times faster than the standard H-formulation in certain applications of interest.
Politics of Marginalisation in Indonesia: The Jokowi Era
Creators: name: Tho Seeth, Amanda
name: Suryomenggolo, Jafar
Publisher: name: International Quarterly for Asian Studies
Year: 2024

description: This special issue critically examines the socio-political and economic impacts of the Joko Widodo (Jokowi) government (2014–2024) on marginalised communities in Indonesia, focusing on the intersection of government policies and local struggles. Despite economic growth, Indonesia has experienced democratic backsliding, characterised by oligarchic influence, weakened institutions, and rising corruption. These challenges have exacerbated the marginalisation of vulnerable groups, particularly in rural and indigenous areas, where top-down development projects have deepened social inequality, land disputes, and environmental degradation. However, the issue also highlights grassroots resistance, with communities engaging in "everyday resistance" and "politics of marginality" to challenge these policies. Case studies include struggles over land in Flores, political-economic turmoil in West Papua, and the challenges faced by rural social movements and people with disabilities. The editorial critiques Jokowi’s developmental policies, questioning their social and ecological consequences while pointing to the resilience of local communities as a crucial counterbalance to elite-driven politics. It calls for further research into these dynamics as Indonesia pursues its "Golden Indonesia 2045" vision.
description: International Quarterly for Asian Studies, Vol. 55 No. 2 (2024): Politics of Marginalisation in Indonesia: The Jokowi Era
Zodiacal Exoplanets in Time (ZEIT) XIII: Planet Orbits and Atmospheres in the V1298 Tau System, a Keystone in Studies of Early Planetary Evolution
Creators: name: Gaidos, E.
name: Hirano, T.
name: Beichman, C.
name: Livingston, J.
name: Harakawa, H.
name: Hodapp, K. W.
name: Ishizuka, M.
name: Jacobson, S.
name: Konishi, M.
name: Kotani, T.
name: Kudo, T.
name: Kurokawa, T.
name: Kuzuhara, M.
name: Nishikawa, J.
name: Omiya, M.
name: Serizawa, T.
name: Tamura, M.
name: Ueda, A.
name: Vievard, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Studies of planetary systems of stars in star-forming regions and young clusters open a window on the formative stages of planetary evolution. We obtained high-cadence high-resolution infrared spectroscopy of the solar-mass Taurus association-member V1298 Tau during a transit of its 10R$_{\oplus}$-size "b" planet. We measured the systemic radial velocity and find that the kinematics of V1298 Tau suggest an affiliation with a $\gtrsim$6 Myr-old subgroup. A comparison of V1298 Tau and the nearby, co-moving star 2M0405 with stellar evolution models suggests an age of $\sim$10-25 Myr. We measured the projected spin-orbit angle of "b" as $λ=15_{-16}^{+15}$ and $λ= 2_{-4}^{+12}$ degrees using the apparent RV shift and change in line profile, respectively, induced by the transient occultation of the rotating star by the planet. These values indicate a prograde orbit like that of the interior "c" planet of V1298 Tau and point to a co-planar multi-planet system that formed within a disk. We also measured variation in the strength of the 1083 nm triplet of neutral orthohelium as a probe of any extended/escaping atmosphere around "b". We detect a steady decrease in absorption over the transit which appears to arise from the star or its planetary system. While this variation could be ascribed to "b" or possibly to the immediately preceding transit of "d", we cannot rule out that this is due to rapid variation in the stellar disk-integrated flux in the triplet. The amplitude of variation ($\sim$0.04 nm) is consistent with moderate estimates of atmospheric escape driven by XUV radiation from the central star.
description: Accepted to MNRAS 20 October 2021
Generalized Kerr-NUT-de Sitter metrics in all dimensions
Creators: name: Houri, Tsuyoshi
name: Oota, Takeshi
name: Yasui, Yukinori
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We classify all spacetimes with a closed rank-2 conformal Killing-Yano tensor. They give a generalization of Kerr-NUT-de Sitter spacetimes. The Einstein condition is explicitly solved and written as an indefinite integral. It is characterized by a polynomial in the integrand. We briefly discuss the smoothness conditions of the Einstein metrics over compact Riemannian manifolds.
description: 12 pages, LaTeX; v2: Einstein conditions for general type included, with slight modification of text, typos corrected; v3: references added, typos corrected, the version published in Physics Letters B
Electronic systems : a course based on adult education practices
Creators: name: Angeles, Miro
Publisher: name: University of British Columbia
Year: 2010

description: The causes of low student attendance for continuing education courses in electronics at the Pacific Vocational Institute (PVI) are analyzed. The unsatisfactory student persistence reflected inadequacies in the approaches used to instruct and in the textbooks utilized in these courses. This report describes how modern principles of adult education were employed to identify these inadequacies and how the application of these principles was used to develop a new curriculum and a new book (appendix F). The new curriculum and its accompanying book not only incorporate the latest developments from the electronics industry, but they also incorporate the continuing application of adult education principles and practices. The criteria for the selection of electronic components is discussed. The resulting component selection provides the students with a moderately priced kit that is easy to transport, and whose components find repeated application throughout the various experiments in the course. The students' attendance records provide one index of the success achieved by the new course. These records show that the successful application of adult education principles has renewed the interest and promoted the active participation of continuing education students attending electronics courses. Another indicative index of the success of the course is the result of field tests performed by other instructors at PVI as well as at other institutions. These results confirm that the new curriculum, the new book and the application of the recommended adult education practices provide the same successful responses as those experienced during the initial tests and development of the course.