cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Empirical evidence of the consistency of Rapid Reviews about interventions during COVID-19 pandemic: A methodological meta-review
Creators: name: Cabanillas-Lazo, Miguel
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified

description: Rapid reviews often include "shortcuts" that streamline and shorten the review process. These include:- having a very focused, narrow question- searching less comprehensively in databases & grey literature reviewing other reviews on the same topic- limiting key variables and conducting a basic quality appraisal
Interpolating gauge-fixing for Yang-Mills-Chern-Simons theory in D=3
Creators: name: Azevedo, Daniel O. R.
name: Del Cima, Oswaldo M.
name: Dias, Thadeu S.
name: Pereira, Emílio D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Yang-Mills-Chern-Simons theory in three-dimensional Minkowski space-time is studied in a gauge-fixing scheme which interpolates between the covariant gauge and light-cone gauge, the interpolating gauge-fixing. The ultraviolet finiteness of the theory is proved via the Becchi-Rouet-Stora (BRS) algebraic renormalization procedure, which allows us to demonstrate the vanishing of all $β$-functions and all anomalous dimensions to all orders in perturbation theory.
description: 6 pages
Multiple Nodeless Superconducting Gaps in (Ba0.6K0.4)Fe2As2 Superconductor from Angle-Resolved Photoemission Spectroscopy
Creators: name: Zhao, Lin
name: Liu, Haiyun
name: Zhang, Wentao
name: Meng, Jianqiao
name: Jia, Xiaowen
name: Liu, Guodong
name: Dong, Xiaoli
name: Chen, G. F.
name: Luo, J. L.
name: Wang, N. L.
name: Wang, Guiling
name: Zhou, Yong
name: Zhu, Yong
name: Wang, Xiaoyang
name: Zhao, Zhongxian
name: Xu, Zuyan
name: Chen, Chuangtian
name: Zhou, X. J.
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: High resolution angle-resolved photoemission measurements have been carried out to study the superconducting gap in the (Ba0.6K0.4)Fe2As2 superconductor with Tc=35 K. Two hole-like Fermi surface sheets around the G(0,0) point exhibit different superconducting gaps. The inner Fermi surface sheet shows larger (10-12 meV) and slightly momentum-dependent gap while the outer one has smaller (7-8 meV) and nearly isotropic gap. The lack of gap node in both Fermi surface sheets favours s-wave superconducting gap symmetry. Superconducting gap opening is also observed at the M(pi,pi) point. The two Fermi surface spots near the M point are gapped below Tc but the gap persists above Tc. The rich and detailed superconducting gap information will provide key insights and constraints in understanding pairing mechanism in the iron-based superconductors.
description: 11 pages, 4 figures
Dzyaloshinskii-Moriya anisotropy effect on field-induced magnon condensation in kagome antiferromagnet $α-Cu_3Mg(OH)_6Br_2$
Creators: name: Fu, Ying
name: Chen, Jian
name: Sheng, Jieming
name: Ge, Han
name: Huang, Lianglong
name: Liu, Cai
name: Wang, Zhenxing
name: Ouyang, Zhongwen
name: Yu, Dapeng
name: Wang, Shanmin
name: Wu, Liusuo
name: Li, Hai-Feng
name: Wang, Le
name: Mei, Jia-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We performed a comprehensive electron spin resonance, magnetization and heat capacity study on the field-induced magnetic phase transitions in the kagome antiferromagnet $α-Cu_3Mg(OH)_6Br_2$. With the successful preparation of single crystals, we mapped out the magnetic phase diagrams under the $c$-axis and $ab$-plane directional magnetic fields $B$. For $B\|c$, the three-dimensional (3D) magnon Bose-Einstein condensation (BEC) is evidenced by the power law scaling of the transition temperature, $T_c\propto (B_c-B)^{2/3}$. For $B\|ab$, the transition from the canted antiferromagetic (CAFM) state to the fully polarized (FP) state is a crossover rather than phase transition, and the characteristic temperature has a significant deviation from the 3D BEC scaling. The different behaviors of the field-induced magnetic transitions for $B\|c$ and $B\|ab$ could result from the Dzyaloshinkii-Moriya (DM) interaction with the DM vector along the $c$-axis, which preserves the $c$-axis directional spin rotation symmetry and breaks the spin rotation symmetry when $B\|ab$. The 3D magnon BEC scaling for $B\|c$ is immune to the off-stoichiometric disorder in our sample $α-Cu_{3.26}Mg_{0.74}(OH)_6Br_2$. Our findings have the potential to shed light on the investigations of the magnetic anisotropy and disorder effects on the field-induced magnon BEC in the quantum antiferromagnet.
description: 7 pages, 10 figures, 1 table
Lars-Arne Dannenberg, Dietrich Scholze (Hrsg.), Stätten und Stationen religiösen Wirkens. Studien zur Kirchengeschichte der zweisprachigen Oberlausitz
Creators: name: Kersken, Norbert
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2011

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 60 Nr. 2 (2011)
The Yang-Mills stratification for surfaces revisited
Creators: name: Ramras, Daniel A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Algebraic Topology (math.AT)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 58E15, 58B20, 58D27

description: We revisit Atiyah and Bott's study of Morse theory for the Yang-Mills functional over a Riemann surface, and establish new formulas for the minimum codimension of a (non-semi-stable) stratum. These results yield the exact connectivity of the natural map (C_{min} E)//G(E) --> Map^E (M, BU(n)) from the homotopy orbits of the space of central Yang-Mills connections to the classifying space of the gauge group G(E). All of these results carry over to non-orientable surfaces via Ho and Liu's non-orientable Yang-Mills theory. A somewhat less detailed version of this paper (titled "On the Yang-Mills stratification for surfaces") will appear in the Proceedings of the AMS.
description: 18 pages. A shorter version has appeared in Proc. AMS. V. 4: minor changes due to referee's comments; Section 3, on tubular neighborhoods, has been moved arXiv:1006.0063, which fills a gap regarding local triviality of normal bundles. V. 3: changed formatting, small correction to Theorem 4.11. V.2: changed formatting; revised the introduction; minor simplifications to the proof of Proposition 4.1
Lietuvos valstybes susikūrimas europiniame kontekste
Creators: name: Mühle, Eduard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
Stable First-order Particle-frame Relativistic Hydrodynamics for Dissipative Systems
Creators: name: Tsumura, Kyosuke
name: Kunihiro, Teiji
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We propose a stable first-order relativistic dissipative hydrodynamic equation in the particle frame (Eckart frame) for the first time. The equation to be proposed was in fact previously derived by the authors and a collaborator from the relativistic Boltzmann equation. We demonstrate that the equilibrium state is stable with respect to the time evolution described by our hydrodynamic equation in the particle frame. Our equation may be a proper starting point for constructing second-order causal relativistic hydrodynamics, to replace Eckart's particle-flow theory.
description: 4 pages, 3 figures
title: Оценка гендерных различий, характерных для завершивших деятельность предпринимателей
title: Evaluation of Gender Differences Typical for Entrepreneurs Who Terminated Activities
Creators: name: Пиньковецкая, Юлия Семеновна
Publisher: name: Издательский центр СурГУ
Year: 2021

description: Целью исследования является оценка сложившихся уровней завершения женщинами и мужчинами деятельности в качестве предпринимателей в современных национальных экономиках. Были решены задачи определения значений показателей, характеризующих завершение предпринимателями деятельности, а также рассмотрено влияние на этот процесс таких причин, как убыточность производства и отсутствие финансов. В качестве исходной информации использовались результаты опросов, проведенных в 59 странах в процессе реализации проекта Глобального мониторинга предпринимательства. Полученные результаты показали, что в большинстве стран имеет место гендерный разрыв между удельными весами женщин-предпринимателей, завершивших деятельность, в численности взрослых женщин и соответствующими показателями по мужчинам-предпринимателям. Доказано, что почти половина мужчин и женщин в рассматриваемых странах завершили свой бизнес в связи с отсутствием прибыли или финансовыми проблемами.
description: The aim of the study is to assess the current levels of termination of entrepreneurial activity by women and men in modern national economies. The study solved the problem of determining the values of indicators that characterize the termination of an entrepreneur's activity, as well as the impact on this process of such factors as unprofitability of production and lack of finance. The study used the results of surveys conducted in 59 countries during the implementation of the Global Entrepreneurship Monitor project as initial information. The results showed that in most countries there is a gender gap between the proportion of adult female entrepreneurs who have terminated their activities and the corresponding indicators for male entrepreneurs. It is proven that almost half of men and women in the countries under review have closed their business due to lack of profit or financial problems.
LS3: Latent Space Safe Sets for Long-Horizon Visuomotor Control of Sparse Reward Iterative Tasks
Creators: name: Wilcox, Albert
name: Balakrishna, Ashwin
name: Thananjeyan, Brijen
name: Gonzalez, Joseph E.
name: Goldberg, Ken
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Reinforcement learning (RL) has shown impressive success in exploring high-dimensional environments to learn complex tasks, but can often exhibit unsafe behaviors and require extensive environment interaction when exploration is unconstrained. A promising strategy for learning in dynamically uncertain environments is requiring that the agent can robustly return to learned safe sets, where task success (and therefore safety) can be guaranteed. While this approach has been successful in low-dimensions, enforcing this constraint in environments with visual observations is exceedingly challenging. We present a novel continuous representation for safe sets by framing it as a binary classification problem in a learned latent space, which flexibly scales to image observations. We then present a new algorithm, Latent Space Safe Sets (LS3), which uses this representation for long-horizon tasks with sparse rewards. We evaluate LS3 on 4 domains, including a challenging sequential pushing task in simulation and a physical cable routing task. We find that LS3 can use prior task successes to restrict exploration and learn more efficiently than prior algorithms while satisfying constraints. See https://tinyurl.com/latent-ss for code and supplementary material.
description: Conference on Robot Learning (CoRL) 2021. First two authors contributed equally
Four-loop perturbative Konishi from strings and finite size effects for multiparticle states
Creators: name: Bajnok, Zoltan
name: Janik, Romuald A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the perturbative four loop anomalous dimension of the Konishi operator in N=4 SYM theory from the integrable string sigma model by evaluating the finite size effects using Luscher formulas adapted to multimagnon states at weak coupling. We obtain these multiparticle generalizations of Luscher formulas by studying certain exactly solvable relativistic integrable quantum field theories. The final result involves a summation of all bound states in the mirror theory and agrees with gauge theory perturbative computations.
description: 37 pages; v2: references added, added comparison with corrected perturbative results, v3: mismatched conventions in appendices fixed, no changes in the main text; v4: ref. added, typos corrected
Barbara Dettke, Die asiatische Hydra. Die Cholera von 1830
Creators: name: Groß, Hilde-Marie
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 2 (1999)
A 4565 Myr old andesite from an extinct chondritic protoplanet
Creators: name: Barrat, Jean-Alix
name: Chaussidon, Marc
name: Yamaguchi, Akira
name: Beck, Pierre
name: Villeneuve, Johan
name: Byrne, David J.
name: Broadley, Michael W.
name: Marty, Bernard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The age of iron meteorites implies that accretion of protoplanets began during the first millions of years of the solar system. Due to the heat generated by 26Al decay, many early protoplanets were fully differentiated with an igneous crust produced during the cooling of a magma ocean and the segregation at depth of a metallic core. The formation and nature of the primordial crust generated during the early stages of melting is poorly understood, due in part to the scarcity of available samples. The newly discovered meteorite Erg Chech 002 (EC 002) originates from one such primitive igneous crust and has an andesite bulk composition. It derives from the partial melting of a noncarbonaceous chondritic reservoir, with no depletion in alkalis relative to the Sun photosphere and at a high degree of melting of around 25 percents. Moreover, EC 002 is, to date, the oldest known piece of an igneous crust with a 26Al-26Mg crystallization age of 4,565.0 million years (My). Partial melting took place at 1,220 C up to several hundred kyr before, implying an accretion of the EC 002 parent body ca. 4,566 My ago. Protoplanets covered by andesitic crusts were probably frequent. However, no asteroid shares the spectral features of EC 002, indicating that almost all of these bodies have disappeared, either because they went on to form the building blocks of larger bodies or planets or were simply destroyed.
Sven Jüngerkes, Deutsche Besatzungsverwaltung in Lettland 1941-1945. Eine Kommunikations- und Kulturgeschichte nationalsozialistischer Organisation
Creators: name: Brüggemann, Karsten
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2011

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 60 Nr. 2 (2011)
Integrating 2D and 3D Digital Plant Information Towards Automatic Generation of Digital Twins
Creators: name: Sierla, Seppo
name: Azangoo, Mohammad
name: Fay, Alexander
name: Vyatkin, Valeriy
name: Papakonstantinou, Nikolaos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Information Theory (cs.IT)
subject: Software Engineering (cs.SE)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: H.0
subject: 93-04

description: Ongoing standardization in Industry 4.0 supports tool vendor neutral representations of Piping and Instrumentation diagrams as well as 3D pipe routing. However, a complete digital plant model requires combining these two representations. 3D pipe routing information is essential for building any accurate first-principles process simulation model. Piping and instrumentation diagrams are the primary source for control loops. In order to automatically integrate these information sources to a unified digital plant model, it is necessary to develop algorithms for identifying corresponding elements such as tanks and pumps from piping and instrumentation diagrams and 3D CAD models. One approach is to raise these two information sources to a common level of abstraction and to match them at this level of abstraction. Graph matching is a potential technique for this purpose. This article focuses on automatic generation of the graphs as a prerequisite to graph matching. Algorithms for this purpose are proposed and validated with a case study. The paper concludes with a discussion of further research needed to reprocess the generated graphs in order to enable effective matching.
description: 8 pages, 13 figures
FRANSUZ TILIDAGI NEOLOGIZMLARNING SHAKLLANISHI — SOBIQ FRANSIYA PREZIDENTI NICOLAS SARKOZYNING SIYOSIY G'OYALARI ASOSIDA YARATILGAN YANGI KONSEPTLAR NATIJASI SIFATIDA
Creators: name: To'rayeva, Maftuna
Publisher: name: Zenodo
Year: 2025

description: Maqolada Fransiya sobiq prezidenti Nicolas Sarkozy nutqlari asosida shakllangan lingvistik hodisa — “sarkozysme” fenomeni tahlil qilinadi. Ushbu hodisa siyosiy nutqdagi leksik xatolar va o‘ziga xos iboralar orqali yangi neologizmlarning paydo bo‘lishini aks ettiradi. Jumladan, “Sarkozettes” (ayol tarafdorlarini ifodalovchi atama) va “méprisance” (leksik xato orqali yuzaga kelgan so‘z) kabi birliklar Sarkozy shaxsi va siyosiy uslubiga bog‘liq holda yaratilgan bo‘lib, ular siyosiy nutq, ommaviy axborot vositalarida faol qo‘llaniladi. Tadqiqot ushbu neologizmlarning shakllanish jarayoni, semantik va stilistik xususiyatlari hamda sarkozysme fenomenining tilshunoslik va ijtimoiy-lingvistik kontekstdagi o‘rnini ochib beradi.
Origins of colors variability among C-cluster main-belt asteroids
Creators: name: Beck, Pierre
name: Poch, Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Sloan Digital Sky Survey provides colors for more than 100 000 moving objects, among which around 10 000 have albedos determined. Here we combined colors and albedo in order to perform a cluster analysis on the small bodies population, and identify a C-cluster, a group of asteroid related to C-type as defined in earlier work. Members of this C-cluster are in fair agreement with the color boundaries of B and C-type defined in DeMeo and Carry (2013). We then compare colors of C-cluster asteroids to those of carbonaceous chondrites powders, while taking into account the effect of phase angle. We show that only CM chondrites have colors in the range of C-cluster asteroids, CO, CR and CV chondrites being significantly redder. Also, CM chondrites powders are on average slightly redder than the average C-cluster. The colors of C-cluster members are further investigated by looking at color variations as a function of asteroid diameter. We observe that the visible slope becomes bluer with decreasing asteroids diameter, and a transition seems to be present around 20 km. We discuss the origin of this variation and, if not related to a bias in the dataset - analysis, we conclude that it is related to the surface texture of the objects, smaller objects being covered by rocks, while larger objects are covered by a particulate surface. The blueing is interpreted by an increased contribution of the first reflection in the case of rock-dominated surfaces, which can scatter light in a Rayleigh-like manner. We do not have unambiguous evidence of space weathering within the C-cluster based on this analysis, however the generally bluer nature of C-cluster objects compared to CM chondrites could be to some extent related to space weathering.
Il vendicatore imperfetto: Egisto nella riscrittura senecana
Creators: name: Marchese, Rosa Rita
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: This paper analyses the transformation of Aegisthus character in Seneca's Agamemnon.  In this drama, the son of Thyestes, born by incest, becomes a type of  corrupted avenger, whose heroic imperfection carries out the revenge on  Agamemnon in the peculiar way of his father, that is to say by adultery  and blood confusion. The role of Aegisthus in the play shows clearly the  cultural  meaning attributed from Seneca to the plot of vengeance: if  Greek revenge was "a solution",  a form of necessary repayment to a  violation, restoring the regularity of cosmos, Senecan revenge is a  criminal competition establishing the chaos, corresponding to virtutum certamen that, in Roman society, opposed fathers and sons.
description: Annali Online  Lettere - Ferrara, IV 2 (2009)
Opinion Dynamics and Collective Decisions
Creators: name: Lorenz, Jan
name: Neumann, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We expect that democracy enables us to utilize collective intelligence such that our collective decisions build and enhance social welfare, and such that we accept their distributive and normative consequences. Collective decisions are produced by voting procedures which aggregate individual preferences and judgments. Before and after, individual preferences and judgments change as their underlying attitudes, values, and opinions change through discussion and deliberation. In large groups, these dynamics naturally go beyond the scope of the individual and consequently might show unexpected self-driven macroscopic systems dynamics following socio-physical laws. On the other hand, aggregated information and preferences as communicated through media, polls, political parties, or interest groups, also play a large role in the individual opinion formation process. Further on, actors are also capable of strategic opinion formation in the light of a pending referendum, election or other collective decision. Opinion dynamics and collective decision should thus not only be tackled by social choice, game theory, political and social psychology, but also from a systems dynamics and sociophysics perspective.
description: 11pages, Preprint for Editorial for a Topical Issue in Advances in Complex Systems 2018
Ossesione e abiezione negli stage thrillers di Patrick Hamilton
Creators: name: Di Luzio, Alessandra
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Patrick Hamilton (1904-1962) was a major British author in the  between-wars literary scene. He was considered a talented novelist and a  brilliant playwright, and his works (a dozen of novels and half a dozen  of plays) were highly appreciated not only by fellow writers but also  by a large public of readers and theatre-goers. In spite of this, he was  quickly forgotten after - and even before - his untimely and lonely  death, due to alcohol abuse. Hamilton gained most of his fame and money  from his stage thrillers Rope and Gaslight. Rope is  a black comedy staging a "perfect crime" organized by two young  students who premeditately murder a fellow friend for the sake of  killing. It premiered in London in 1929 and provoked quite a scandal for  the immorality here implied, even if the murderous friends were caught  in the end. Alfred Hitchcock saw the show, and some years later adapted  the play for the screen. Gaslight, staged almost ten years later,  was set in Victorian London. Thanks to its clever visual devices, the  play was a big success too, and was later filmed twice, both in England  and in Hollywood (starring Ingrid Bergman). This essay analyses the  suspense structure that both plays use and the peculiar dialogue  strategies Hamilton creates to involve the spectator in his murder  stories. It also focuses on the detailed characterization the author  suggests through stage directions, and tries to offer a historical  interpretation of sadistic villain figures that are typical of Patrick  Hamilton's production, both literary and theatrical.
description: Annali Online  Lettere - Ferrara, IV 2 (2009)
Jörg Zägel, Vergangenheitsdiskurse in der Ostseeregion. In Zusammenarbeit mit Reiner Steinweg
Creators: name: Hackmann, Jörg
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
Serena Perrone (a cura di) Commentaria et lexica Graeca in papyris reperta (CLGP), II. Commentaria in adespota, 4. Comoedia et mimus. Berlin-New York. De Gruyter. 2009. pp. XXXI + 148.
Creators: name: Valente, Stefano
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, V 1 (2010)
Regina Hartmann (Hrsg.), Grenzen auf der Landkarte - Grenzen im Kopf? Kulturräume der östlichen Ostsee in der Literatur vom 19. Jahrhundert bis zur Gegenwart
Creators: name: Jarosz, Adam
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2011

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 60 Nr. 2 (2011)
A convenient category of locally preordered spaces
Creators: name: Krishnan, Sanjeevi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55U40; 18F99

description: As a practical foundation for a homotopy theory of abstract spacetime, we extend a category of certain compact partially ordered spaces to a convenient category of locally preordered spaces. In particular, we show that our new category is Cartesian closed and that the forgetful functor to the category of compactly generated spaces creates all limits and colimits.
description: 26 pages, 0 figures, partially presented at GETCO 2005; changes: claim of Prop. 5.11 weakened to finite case and proof changed due to problems with proof of Lemma 3.26, now removed; Eg. 2.7, statement before Lem. 2.11, typos, and other minor problems corrected throughout; extensive rewording; proof of Lem. 3.31, now 3.30, added
Simonetta Fraquelli, Susan Davidson, Maria Luisa Pacelli (a cura di) Gli anni folli. La Parigi di Modigliani, Picasso e Dalì 1918-1933. Catalogo della mostra. Ferrara. FerraraArte. 2011. pp. 214
Creators: name: Fiorillo, Ada Patrizia
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: Annali Online  Lettere - Ferrara, VI 1-2 (2011)
Spinon pairing induced by chiral in-plane exchange and the stabilization of odd-spin Chern number spin liquid in twisted ${\rm MoTe}_2$
Creators: name: Crépel, Valentin
name: Millis, Andrew
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The unusual structure and symmetry of low-energy states in twisted transition metal dichalcogenides leads to large in-plane spin-exchange interactions between spin-valley locked holes. We demonstrate that this exchange interaction can stabilize a gapped spin-liquid phase with a quantized spin-Chern number of three when the twist angle is sufficiently small and the system lies in a Mott insulating phase. The gapped spin liquid may be understood as arising from spinon pairing in the DIII Altland-Zirnbauer symmetry class. Applying an out of plane electric field or increasing the twist angle is shown to drive a transition respectively to an anomalous Hall insulator or an in-plane antiferromagnet. Recent experiments indicate that a spin-Chern number three phase occurs in twisted MoTe$_2$ at small twist angles with a transition to a quantum anomalous Hall phase as the twist angle is increased above a critical value of about $2.5^\circ$ in absence of applied electric field.
Empusa, nome parlante di un mostro infernale (Aristoph. Ran. 288ss)
Creators: name: Andrisano, Angela M.
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: This article proposes a new interpretation of the encounter between Dionysos and the monster Empusa in Aristophanes' Frogs (vv. 285-305).
description: Annali Online  Lettere - Ferrara, Volume Speciale, supp. II 2 (2007)
Direction-Based Jamming Detection and Suppression in mmWave Massive MIMO Networks
Creators: name: Bagherinejad1, Saeed
name: Razavizadeh, S. Mohammad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we study the problem of physical layer security in the uplink of millimeter-wave massive multiple-input multiple-output (MIMO) networks and propose a jamming detection and suppression method. The proposed method is based on directional information of the received signals at the base station antenna array. The proposed jamming detection method can accurately detect both the existence and direction of the jammer using the received pilot signals in the training phase. The obtained information is then exploited to develop a channel estimator that excludes the jammer's angular subspace from received training signals. The estimated channel information is then used for designing a combiner at the base station that is able to effectively cancel out the deliberate interference of the jammer. By numerical simulations, we evaluate the performance of the proposed jamming detection method in terms of correct detection probability and false alarm probability and show its effectiveness when the jammer's power is substantially lower than the user's power. Also, our results show that the proposed jamming suppression method can achieve a very close spectral efficiency as the case of no jamming in the network
description: 18 pages
Callimaco e la voce del cane
Creators: name: Franco, Cristiana
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: In Callimachus' Iamb. 2 one of the targets of the poet's  criticism is said to have "the voice of the dog". What did Callimachus  mean by that expression is under discussion. A survey of the  metaphorical uses of the dog and his barking ("hylaktein", "bayzein") in  the ancient  Greek literature  seems to suggest that Callimachus' aim  was to criticize the bitterness of Filone's style as well as his lack of  persuasiveness and authority.
description: Annali Online  Lettere - Ferrara, Volume Speciale, supp. II 2 (2007)
The terra-cotta figures of Qin and human representations from the 5th century B.C. to the 3rd century A.D.
Creators: name: Wong, Saintfield S. F.
Publisher: name: University of British Columbia
Year: 2010

description: In 1974, an army of over 7,000 life size soldiers and horses sculpted in clay and equipped with actual bronze weapons and chariots was discovered in Lintong, Shaanxi Province, near the mausoleum of the First Emperor of China, Qin Shihuangdi. As a component part of the mausoleum, the army was produced between 246 - 209 B.C. Although made by the thousands, these figures were individually modelled. Great care was taken to depict and define the particulars, especially those of the facial features, hairstyles and armor. On the other hand, little attention was given to the representation of organic structures and anatomical details. The difference in concern for various parts of the body poses an interesting topic for investigation. In particular, the great care devoted to rendering details shown by the Qin figures signifies a new stage in the development of human representation, where human figures represented as independent subject matter were produced in life size and with a concern for realism. Through stylistic analyses of the Qin figures and human representations from the 5th Century B.C. to the 3rd Century A.D., one is not only able to define the artistic concerns of the Qin sculptors, but is also able to determine the significance of the Qin figures in the development of human representation. Moreover, through the study of the prevailing artistic trends, the sociological and ideological background of the Eastern Zhou and Qin periods, one discovers that the Qin figures closely relate to the bronze tradition in their method of modelling, concern for surface and clarity in representation; while the Qin sculptors' attention for exactitude in details and variation within uniformity reflects the ideology of the Qin regime. Nevertheless, anatomical realism was never a primary concern of the Qin artists. The trend for abstraction and the northern and southern attitude towards art can also be traced through the development of human representation. The rising importance of depicting the human figure as an independent subject matter mirrored the rising value of man amidst political turmoil and social changes.
Long-term stellar activity variations and their effect on radial-velocity measurements
Creators: name: Costes, Jean C.
name: Watson, Christopher A.
name: de Mooij, Ernst
name: Saar, Steven H.
name: Dumusque, Xavier
name: Cameron, Andrew Collier
name: Phillips, David F.
name: Günther, Maximilian N.
name: Jenkins, James S.
name: Mortier, Annelies
name: Thompson, Andrew P. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Long-term stellar activity variations can affect the detectability of long-period and Earth-analogue extrasolar planets. We have, for 54 stars, analysed the long-term trend of five activity indicators: log$R'_\mathrm{HK}$, the cross-correlation function (CCF) bisector span, CCF full-width-at-half-maximum, CCF contrast, and the area of the Gaussian fit to the CCF; and studied their correlation with the RVs. The sign of the correlations appears to vary as a function of stellar spectral type, and the transition in sign signals a noteworthy change in the stellar activity properties where earlier type stars appear more plage dominated. These transitions become more clearly defined when considered as a function of the convective zone depth. Therefore, it is the convective zone depth (which can be altered by stellar metallicity) that appears to be the underlying fundamental parameter driving the observed activity correlations. In addition, for most of the stars, we find that the RVs become increasingly red-shifted as activity levels increase, which can be explained by the increase in the suppression of convective blue-shift. However, we also find a minority of stars where the RVs become increasingly blue-shifted as activity levels increase. Finally, using the correlation found between activity indicators and RVs, we removed RV signals generated by long-term changes in stellar activity. We find that performing simple cleaning of such long-term signals enables improved planet detection at longer orbital periods.
description: 22 pages, 9 figures, accepted for publication in the Monthly Notices of the Royal Astronomical Society
Description of our cosmological spacetime as a perturbed conformal Newtonian metric and implications for the backreaction proposal for the accelerating universe
Creators: name: Kolb, Edward W.
name: Marra, Valerio
name: Matarrese, Sabino
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It has been argued that the spacetime of our universe can be accurately described by a perturbed conformal Newtonian metric, and hence even large density inhomogeneities in a dust universe can not change the observables predicted by the homogeneous dust model. In this paper we study a spherically symmetric dust model and illustrate conditions under which large spatial variations in the expansion rate can invalidate the argument.
description: 22 pages, 8 figures; replaced to fit the version accepted for publication in Phys. Rev. D
Nordosteuropa als Geschichtsregion. Beiträge des III. internationalen Symposiums zur deutschen Kultur und Geschichte im europäischen Nordosten
Creators: name: Bömelburg, Hans-Jürgen
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
Strumenti musicali tra generi letterari e performance poetica. L’opposizione tra aulos e barbiton in Crizia (1 D.-K. = 8 Gent.-Pr.), Anacreonte e Teleste (806 PMG)
Creators: name: Iannucci, Alessandro
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: The opposition between aulos and barbiton in Critias 1 D.-K. = 8 Gent.-Pr. is reconsidered in light of Telestes 806 PMG. Within a comprehensive theory of the Greek archaic lyric the musical instruments are not significant in postulating distinctions among poetic genres. In the second part of the article I suggest some perspectives for a study of poetic genres of the archaic Greek lyric in terms of poetic performance.
description: Annali Online  Lettere - Ferrara, VI 1-2 (2011)
Effect of clustering on Turing instability in complex networks
Creators: name: Pranesh, Samana
name: Jaiswal, Devanand
name: Gupta, Sayan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Turing instability in complex networks have been shown in the literature to be dominated by the distribution of the nodal degrees. The conditions for Turing instability have been derived with an explicit dependence on the eigenvalues of the Laplacian, which in turn depends on the network topology. This study reveals that apart from average degree of the network, another global network measure - the nodal clustering - also plays a crucial role. Analytical and numerical results are presented to show the importance of clustering for several network topologies ranging from the $\mathbb{S}^1$ / $\mathbb{H}^2$ hyperbolic geometric networks that enable modelling the naturally occurring clustering in real world networks, as well as the random and scale free networks, which are obtained as limiting cases of the $\mathbb{S}^1$ / $\mathbb{H}^2$ model. Analysis of eigenvector localization properties in these networks are shown to reveal distinct signatures that enable identifying the so called Turing patterns even in complex networks.
Fast Channel Estimation in the Transformed Spatial Domain for Analog Millimeter Wave Systems
Creators: name: Roger, Sandra
name: Cobos, Maximo
name: Botella-Mascarell, Carmen
name: Fodor, Gabor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Fast channel estimation in millimeter-wave (mmWave) systems is a fundamental enabler of high-gain beamforming, which boosts coverage and capacity. The channel estimation stage typically involves an initial beam training process where a subset of the possible beam directions at the transmitter and receiver is scanned along a predefined codebook. Unfortunately, the high number of transmit and receive antennas deployed in mmWave systems increase the complexity of the beam selection and channel estimation tasks. In this work, we tackle the channel estimation problem in analog systems from a different perspective than used by previous works. In particular, we propose to move the channel estimation problem from the angular domain into the transformed spatial domain, in which estimating the angles of arrivals and departures corresponds to estimating the angular frequencies of paths constituting the mmWave channel. The proposed approach, referred to as transformed spatial domain channel estimation (TSDCE) algorithm, exhibits robustness to additive white Gaussian noise by combining low-rank approximations and sample autocorrelation functions for each path in the transformed spatial domain. Numerical results evaluate the mean square error of the channel estimation and the direction of arrival estimation capability. TSDCE significantly reduces the first, while exhibiting a remarkably low computational complexity compared with well-known benchmarking schemes.
description: Accepted for publication in IEEE Transactions on Wireless Communications
New techniques for understanding rapid X-ray variability from compact objects
Creators: name: Stevens, Abigail Lauren
Publisher: name: Zenodo
Year: 2018
Subjects: compact objects
black holes
neutron stars
X-ray binaries

description: Compact objects like stellar-mass black holes and neutron stars are dense enough to significantly warp spacetime. By studying emission from very close to the compact object, we can decipher the effects of strong-gravity on physical processes, and test general relativity in the strong-field limit. There is a plethora of rapid sub-second variability in the X-ray light curves from compact objects in accreting low-mass X-ray binaries (LMXBs), and a growing toolbox of analysis techniques and algorithms to apply to such phenomena. This thesis investigates quasi-periodic oscillations (QPOs) and coherent X-ray burst oscillations. QPOs are a probe for studying physical processes in the inner regions of LMXBs, and X-ray burst oscillations are used to determine the masses and radii of neutron stars to constrain the neutron star equation of state. In Chapter 2, we present a novel spectral-timing technique to do phase-resolved spectroscopy of QPOs that tracks the variations of spectral parameters with QPO phase, and we apply it to a low-frequency QPO from the black hole GX 339-4. In Chapter 3, we use ray-tracing to simulate pulse profiles of thermonuclear burst oscillations from an accreting neutron star and fit these with an evolutionary optimization algorithm. In Chapter 4, we apply our phase-resolved spectroscopy technique to a lower kilohertz (kHz) QPO from the neutron star 4U 1608-52. Finally in Chapter 5, we carry out spectral-timing analysis of the low-frequency QPO seen by NICER in the new black hole transient MAXI J1535-571.
Andreas Kossert, Kalte Heimat. Die Geschichte der deutschen Vertriebenen nach 1945
Creators: name: Faehndrich, Jutta
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2009

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 58 Nr. 1-2 (2009): Bilder vieler Ausstellungen. Großexpositionen in Ostmitteleuropa als nationale, mediale und soziale Ereignisse
A survey of radiation released from patients treated with radioiodine-131 therapy
Creators: name: Chaisunthorn Wisetnan
name: Patamaporn Molee
name: Panatsada Awikunprasert
name: Khajornkiat Srichachet
name: Vithit Pungkun
Publisher: name: Faculty of Associated Sciences, Chiang Mai University
Year: 2021
Subjects: I-131
sewer systems
OSL

description: Journal of Associated Medical Sciences, 54, 2, 17 - 21
Influence of thermal fluctuations on the geometry of the interfaces of the quenched Ising model
Creators: name: Corberi, F.
name: Lippiello, E.
name: Zannetti, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the role of the quench temperature $T_f$ in the phase-ordering kinetics of the Ising model with single spin flip in $d=2,3$. Equilibrium interfaces are flat at $T_f=0$, whereas at $T_f>0$ they are curved and rough (above the roughening temperature in $d=3$). We show, by means of scaling arguments and numerical simulations, that this geometrical difference is important for the phase-ordering kinetics as well. In particular, while the growth exponent $z=2$ of the size of domains $L(t)\sim t^{1/z}$ is unaffected by $T_f$, other exponents related to the interface geometry take different values at $T_f=0$ or $T_f>0$. For $T_f>0$ a crossover phenomenon is observed from an early stage where interfaces are still flat and the system behaves as at $T_f=0$, to the asymptotic regime with curved interfaces characteristic of $T_f>0$. Furthermore, it is shown that the roughening length, although sub-dominant with respect to $L(t)$, produces appreciable correction to scaling up to very long times in $d=2$.
description: 21 pages, 15 figures. To be published in Phys. Rev. E
Mezira Amyot & Serville 1843
Creators: name: Heiss, Ernst
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Aradidae
Mezira

description: Genus Mezira Amyot & Serville, 1843
Mezira Amyot & Serville, 1843: 305. Type species by monotypy: Mezira granulata Amyot & Serville, 1843 (junior secondary homonym of Aradus granulatus Say, 1832). Cuba [“ France meridionale” in error, see Bergroth, 1898].
Brachyrrhynchus usurpatus Bergroth, 1885: 182 (new name for Mezira granulata, synonymized by Bergroth, 1898: 188).
Brachyrhynchus abdominalis Stål, 1873: 144. Cuba
Mezira abdominalis Usinger & Matsuda, 1959: 379; Kormilev & Froeschner, 1987: 147.
Ref.: Usinger & Matsuda, 1959 (syst.); Hoberlandt, 1957 (key); 1963 (key to bicoloured species); Kormilev & Froeschner, 1987: 147 (cat.)
description: Published as part of Heiss, Ernst, 2012, Annotated catalogue of the flat bug family Aradidae Brullé, 1836 of Madagascar and adjacent islands (Hemiptera: Heteroptera), pp. 45-63 in Zootaxa 3426 (1) on page 55, DOI: 10.11646/zootaxa.3426.1.3, http://zenodo.org/record/214110
Karolina Lang, Regionale versus nationale Identität? Zur Frage der Identitäts- und Heimatkonstruktionen der Ermländer im westlichen Nachkriegsdeutschland bis 1960
Creators: name: Řepa, Milan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2011

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 60 Nr. 2 (2011)
A preliminary performance evaluation of 3D facial image reconstruction from computed tomography scan
Creators: name: Nontanun Moonsan
name: Suchart Kiatwattanacharoen
name: Komsanti Chokethawai
Publisher: name: Faculty of Associated Sciences, Chiang Mai University
Year: 2021
Subjects: Facial reconstruction
CT scan image
facial soft tissue thickness
forensic science

description: Journal of Associated Medical Sciences, 54, 2, 22- 28