cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Loop quantum cosmology, non-Gaussianity, and CMB power asymmetry
Creators: name: Agullo, Ivan
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We argue that the anomalous power asymmetry observed in the cosmic microwave background (CMB) may have originated in a cosmic bounce preceding inflation. In loop quantum cosmology (LQC) the big bang singularity is generically replaced by a bounce due to quantum gravitational effects. We compute the spectrum of inflationary non-Gaussianity and show that strong correlation between observable scales and modes with longer (super-horizon) wavelength arise as a consequence of the evolution of perturbations across the LQC bounce. These correlations are strongly scale dependent and induce a dipole-dominated modulation on large angular scales in the CMB, in agreement with observations.
description: 7 pages, 3 figure
Relic Right-handed Dirac Neutrinos and Implications for Detection of Cosmic Neutrino Background
Creators: name: Zhang, Jue
name: Zhou, Shun
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It remains to be determined experimentally if massive neutrinos are Majorana or Dirac particles. In this connection, it has been recently suggested that the detection of cosmic neutrino background of left-handed neutrinos $ν^{}_{\rm L}$ and right-handed antineutrinos $\overlineν^{}_{\rm R}$ in future experiments of neutrino capture on beta-decaying nuclei (e.g., $ν^{}_e + {^3{\rm H}} \to {^3}{\rm He} + e^-$ for the PTOLEMY experiment) is likely to distinguish between Majorana and Dirac neutrinos, since the capture rate is twice larger in the former case. In this paper, we investigate the possible impact of right-handed neutrinos on the capture rate, assuming that massive neutrinos are Dirac particles and both right-handed neutrinos $ν^{}_{\rm R}$ and left-handed antineutrinos $\overlineν^{}_{\rm L}$ can be efficiently produced in the early Universe. It turns out that the capture rate can be enhanced at most by $28\%$ due to the presence of relic $ν^{}_{\rm R}$ and $\overlineν^{}_{\rm L}$ with a total number density of $95~{\rm cm}^{-3}$, which should be compared to the number density $336~{\rm cm}^{-3}$ of cosmic neutrino background. The enhancement has actually been limited by the latest cosmological and astrophysical bounds on the effective number of neutrino generations $N^{}_{\rm eff} = 3.14^{+0.44}_{-0.43}$ at the $95\%$ confidence level. For illustration, two possible scenarios have been proposed for thermal production of right-handed neutrinos in the early Universe.
description: 16 pages, 4 figure, more discussions added, references updated, to appear in Nucl. Phys. B
Caroxylon procerum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon procerum

description: 71. Caroxylon procerum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola procera Botsch. in Botanicheskii Zhurnal 66(7): 1039 (1981).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Unjab Mouth (2013 BC): flaches Riverbett östlich Passhöhe, Bergpass 36 km östlich Torra Baai, 17 April 1964, Giess 8040 (holotype M-0107414!; isotypes LE-00011907!, PRE-0083090-0!, WIND!).
 Distribution: ― Namibia: Sperrgebiet, Namib Desert (Omaruru, Outjo and Swakopmund districts).
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 168, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
MS Gr. class. c. 2 346
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 3.2.3 fr. 3.2.4. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 2 347
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 3.2.1 fr. 3.2.2. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
Works Created Under Federal Contracts: Copyright and Digital Preservation
Creators: name: Laster, Sharalyn J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007
Subjects: Depository libraries
Copyright--Computer-stored information
Government publications--Administration
United States--Government Printing Office

description: This work surveys the current Federal Depository Library Program treatment of government information in digital formats, and the current state of copyright law as it pertains to digital access and preservation projects, in order to demonstrate potential problems with works created with federal funding that are not considered works for hire and therefore do not fall under the general exemption from copyright protection as enacted in Title 17, Section 105 of the U.S. Code.
MS Gr. class. c. 2 348
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 3.1.3 fr. 3.1.4. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
Caroxylon ptilopterum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon ptilopterum

description: 72. Caroxylon ptilopterum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola ptiloptera Botsch. in Botanicheskii Zhurnal 63: 835 (1978).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Dist. Bethanien: Farm Kosos, 15 August 1963, Merxmüller & Giess 2815 (holotype M-0107413!; isotype PRE-0375428-0!).
 Distribution: ― Namibia: Namib Desert coast, Omaruru, Outjo and Bethanien Districts; South Africa (NC): Richtersveld.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 168, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
MS Gr. class. c. 2 349
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 3.1.1 fr. 3.1.2. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 2 350
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 2.2.1 fr. 2.2.4. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
title: From creditor protection to preventing holdouts: mapping the evolution of the law on sovereign debt defaults and restructurings
Creators: name: Belle, Alexandre
Publisher: name: University of Glasgow
Year: 2020
Subjects: subject: Law, international law, international finance, international economic law, international finance law, sovereign debt, public debt.

description: The law on sovereign debt defaults and restructurings is heavily fragmented. The norms applying to sovereign debt are scattered across several legal regimes and interpreted by a broad array of jurisdictions, leading to a highly contradictory case-law. At the scholarly level, sovereign debt is seldom treated holistically. Commentators tend to focus on either the domestic law aspects of the debt relationship, or its international law aspects. In addition, sovereign debt as a of legal studies topic is heavily under-theorised. The purpose of this thesis is to provide a global framework to systematise the law on sovereign defaults and restructurings, both at the domestic and at the international level. This framework makes sense of the contradictions plaguing the legal study of sovereign debt. It also contextualises the changes which recently occurred within the law, and allows mapping the whole impact of legal norms on sovereigns and their creditors. The result is a better understanding of how the law on sovereign debt incentivise stakeholders within the debt relationship. This thesis understands the evolution of the law on sovereign debt since the 1970 as a succession of two paradigmatic regulatory models: the creditor protection model and the anti-holdout model. Under the first model, norms on sovereign debt sought to incentivise the extension of credit to sovereigns by providing creditors with access to independent courts and efficient judicial remedies. From the 1990s onwards, these remedies enabled vulture funds and retail investors to heavily disturb restructuring processes, often at the cost of the debtor’s population. In response to these inefficiencies the anti-holdout model was developed. Its purpose it to disincentivise litigation on sovereign debt to facilitate the restructuring of unsustainable debts. This new model relies on majority-based restructuring decisions, a limitation of remedies available to holdout creditors, and the provision to the sovereign of liquidities to facilitate its return to debt sustainability. Understanding that these changes are united by a paradigmatic vision of how sovereign debt should be regulated creates a clearer picture of the blind spots in the current regulation of sovereign debt. Notably, this thesis will show that the recent legal changes lead to an increase in the risk of fragmentation of the regime, creates a system that heavily disfavours retail holders of sovereign debt, and does little to incentivise sovereigns to restructure unsustainable debts.
MS Gr. class. c. 2 351
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 1.1.2. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
Majorana Positivity and the Fermion sign problem of Quantum Monte Carlo Simulations
Creators: name: Wei, Z. C.
name: Wu, Congjun
name: Li, Yi
name: Zhang, Shiwei
name: Xiang, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The sign problem is a major obstacle in quantum Monte Carlo simulations for many-body fermion systems. We examine this problem with a new perspective based on the Majorana reflection positivity and Majorana Kramers positivity. Two sufficient conditions are proven for the absence of the fermion sign problem. Our proof provides a unified description for all the interacting lattice fermion models previously known to be free of the sign problem based on the auxiliary field quantum Monte Carlo method. It also allows us to identify a number of new sign-problem-free interacting fermion models including, but not limited to, lattice fermion models with repulsive interactions but without particle-hole symmetry and interacting topological insulators with spin-flip terms.
description: small corrections to Supplementary Material/Appendix A
MS Gr. class. c. 2 352
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 697 fr. 4.2.3 Subscriptio. Epicurus, De natura 25
Drawing by Giuseppe (?) Casanova
Update on two-zero textures of the Majorana neutrino mass matrix in light of recent T2K, Super-Kamiokande and NO$ν$A results
Creators: name: Zhou, Shun
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The latest results from atmospheric and accelerator neutrino experiments indicate that the normal neutrino mass ordering $m^{}_1 < m^{}_2 < m^{}_3$, a maximal leptonic CP-violating phase $δ= 270^\circ$ and the second octant of neutrino mixing angle $θ^{}_{23} > 45^\circ$ are favored. In light of new experimental results, we update previous phenomenological studies on two-zero textures of the Majorana neutrino mass matrix $M^{}_ν$, in the flavor basis where the charged-lepton mass matrix $M^{}_l$ is diagonal. When the $1σ$ ranges of neutrino mixing parameters are taken into account, only four (i.e., ${\bf A}^{}_{1, 2}$ and ${\bf B}^{}_{2,4}$) among seven two-zero patterns of $M^{}_ν$ show the aforementioned features of neutrino mass spectrum, mixing angle $θ^{}_{23}$ and CP-violating phase $δ$, and thus are compatible with the latest neutrino oscillation data. The correlative relations among neutrino masses and mixing parameters have been derived analytically for these four patterns, and the allowed regions of neutrino mixing angles and the CP-violating phase are also given. Possible realizations of four viable two-zero textures via non-Abelian discrete flavor symmetries are discussed.
description: 16 pages, 1 figure, references added, to be published in Chin. Phys. C
MS Gr. class. c. 2 354
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 698 col. 25B col. 26B. Philodemus, De sensibus
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 2 355
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 698 col. 29B col. 30B. Philodemus, De sensibus
Drawing by Giuseppe (?) Casanova
Caroxylon rabieanum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon rabieanum

description: 73. Caroxylon rabieanum (I.Verd.) Mucina comb. nov.
 Basionym: ― Salsola rabieana I.Verd. in Bothalia 6, 1: 218, fig. 3 (1951).
 Type: ― SOUTH AFRICA. Orange Free State [Free State Prov.]: Dist. Fauresmith, Driefontein, limestone in brak veld, 12 April 1945, Henrici 2885a (holotype PRE-0372169-0!; isotype PRE-0372168-0!,)
 ‒ Salsola aphylla var. virescens Fenzl ex Drège in Flora 2, Beigabe: 58, 59, 217 (1843), nom. nud. (Art. 38.1a of ICN).
 Notes: ― Botschantzev (1974a: 608) considered Salsola rabieana to be an apparent hybrid between S. albida and S. glabrescens to which it is supposedly ‘connected by a continuous series of transitional forms’. This remark confirms the complexity facing the alpha-taxonomic revision of the genus Caroxylon.
 Distribution: ― Namibia: regions of Karas, Maltahöhe and Windhoek, Skeleton Coast?, Kaokoveld?; Botswana: SW Ghanzi and Kgalagadi Districts, Nwatle Pan; South Africa (NC, FS): widely distributed in Bushmanland, eastern Upper Karoo, Gordonia, Griqualand West.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 168, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Data and Software Skills Training for Librarians
Creators: name: Dennis, Tim
Publisher: name: Zenodo
Year: 2018
Subjects: training
carpentry
library

description: Library Carpentry is an open education volunteer network and lesson organization dedicated to teaching librarians data and software skills. The goal is to help librarians better engage with constituents and improve how they do their work. This talk will serve as an introduction on how Library Carpentry formed in 2015, evolved as a global community of library professionals and will continue as a future sibling of the Carpentries, an umbrella organization of distinct lesson organizations, such as Data and Software Carpentry. We’ll cover existing collaborative lesson development, curricula coverage, workshop activities and the global instructor community. We’ll then talk about the future coordinating activities led by the UC system to align and prepare for a merging with Data and Software Carpentry.
Quasi-alternating links with small determinant
Creators: name: Lidman, Tye
name: Sivek, Steven
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27, 57R58

description: Quasi-alternating links of determinant 1, 2, 3, and 5 were previously classified by Greene and Teragaito, who showed that the only such links are two-bridge. In this paper, we extend this result by showing that all quasi-alternating links of determinant at most 7 are connected sums of two-bridge links, which is optimal since there are quasi-alternating links not of this form for all larger determinants. We achieve this by studying their branched double covers and characterizing distance-one surgeries between lens spaces of small order, leading to a classification of formal L-spaces with order at most 7.
Many-body Localization Transition in Rokhsar-Kivelson-type wave functions
Creators: name: Chen, Xiao
name: Yu, Xiongjie
name: Cho, Gil Young
name: Clark, Bryan K.
name: Fradkin, Eduardo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We construct a family of many-body wave functions to study the many-body localization phase transition. The wave functions have a Rokhsar-Kivelson form, in which the weight for the configurations are chosen from the Gibbs weights of a classical spin glass model, known as the Random Energy Model, multiplied by a random sign structure to represent a highly excited state. These wave functions show a phase transition into an MBL phase. In addition, we see three regimes of entanglement scaling with subsystem size: scaling with entanglement corresponding to an infinite temperature thermal phase, constant scaling, and a sub-extensive scaling between these limits. Near the phase transition point, the fluctuations of the Rényi entropies are non-Gaussian. We find that Rényi entropies with different Rényi index transition into the MBL phase at different points and have different scaling behavior, suggesting a multifractal behavior.
description: Published version. Improved version with 1 new references; 17 pages, 68 references and 16 figures 9some have been reordered)
Generalized nil-Coxeter algebras over discrete complex reflection groups
Creators: name: Khare, Apoorva
Publisher: name: arXiv
Year: 2016
Subjects: subject: Rings and Algebras (math.RA)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20F55 (Primary), 20F05, 20C08 (Secondary)

description: We define and study generalized nil-Coxeter algebras associated to Coxeter groups. Motivated by a question of Coxeter (1957), we construct the first examples of such finite-dimensional algebras that are not the 'usual' nil-Coxeter algebras: a novel 2-parameter type $A$ family that we call $NC_A(n,d)$. We explore several combinatorial properties of $NC_A(n,d)$, including its Coxeter word basis, length function, and Hilbert-Poincare series, and show that the corresponding generalized Coxeter group is not a flat deformation of $NC_A(n,d)$. These algebras yield symmetric semigroup module categories that are necessarily not monoidal; we write down their Tannaka-Krein duality. Further motivated by the Broue-Malle-Rouquier (BMR) freeness conjecture [J. reine angew. math. 1998], we define generalized nil-Coxeter algebras over all discrete real or complex reflection groups $W$, finite or infinite. We provide a complete classification of all such algebras that are finite-dimensional. Remarkably, these turn out to be either the usual nil-Coxeter algebras, or the algebras $NC_A(n,d)$. This proves as a special case - and strengthens - the lack of equidimensional nil-Coxeter analogues for finite complex reflection groups. In particular, generic Hecke algebras are not flat deformations of $NC_W$ for $W$ complex.
description: Final version, published in Transactions of the AMS
Ethical Considerations in Data
Creators: name: Phan, Leigh
name: Labou, Stephanie
name: Ali, Ibraheem
name: Foster, Erin
Publisher: name: Zenodo
Year: 2021
Subjects: data ethics
data literacy
algorithmic bias
data privacy
research impact

description: In February 2021, University of California (UC) Libraries co-hosted UC Love Data Week, a series of free events for UC affiliates on a wide range of topics including: data publishing, data repositories, data cleaning, and text mining to name a few. In an interactive workshop entitled, "Ethical Considerations in Data", data librarians from UCLA, UC Berkeley, and UC San Diego hosted an open discussion around data ethics focusing on case studies of participant data privacy, algorithmic bias, and the social justice components of research. The discussion includes an overview of related resources available at various UC campuses, including further reading available through the libraries and groups on UC campus conducting research in these areas.
MS Gr. class. c. 2 356
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 698 col. 31B col. 32B. Philodemus, De sensibus
Drawing by Giuseppe (?) Casanova
MS Gr. class. c. 2 357
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 698 col. 33B col. 34B. Philodemus, De sensibus
Drawing by Giuseppe (?) Casanova
title: История английского языка. Теория, практика
title: Учебное пособие
titleType: Subtitle
Creators: name: Павленко Л.Г.
Publisher: name: Вузовское образование
Year: 2016

description: Пособие содержит краткое изложение теоретических положений курса истории английского языка, которые позволяют проследить зарождение и развитие языка на всех его уровнях от древнеанглийского до новоанглийского периода. Каждый раздел содержит контрольные вопросы. Практикум включает пятьдесят иллюстративных таблиц, отражающих диахронические изменения в фонетике, морфологии, синтаксисе и словаре английского языка, задания для самостоятельной работы студентов, а также тексты и практические задания к семинарским занятиям и тесты для самоконтроля усвоения знаний (задания для самостоятельной работы и тесты снабжены ключами). Адресовано студентам высших учебных заведений, обучающимся по направлению подготовки «Педагогическое образование» (профиль «Иностранные языки» (английский язык)).
description: The Handbook contains summaries of the theoretical provisions of the course of the history of the English language, which allow us to trace the origin and development of language at all levels from new England to the old English period. Each section contains control questions. The workshop includes fifty illustrative tables that reflect diachronic changes in phonetics, morphology, syntax and vocabulary of the English language, tasks for independent work of students, as well as texts and practical assignments for seminars and tests for self-monitoring learning (homework and tests come with keys). Addressed to students of higher educational institutions, studying under the direction of preparation "Pedagogical education" (profile "Foreign language" (English language)).
title: Job training and inequality
Creators: name: Benecchi, Andrea
Publisher: name: University of Glasgow
Year: 2020
Subjects: subject: economic policy, job training, inequality, wages, human capital, general equilibrium, fiscal policy.

description: This thesis is composed of three chapters. After a brief introduction, the first chapter discusses the definition of on-the-job training, reviews the literature, and reports empirical analyses for the specific case of UK. I decompose training participation and study its evolution in the last 20 years for specific sub-groups of workers, providing new compelling evidence. The second chapter finds empirical evidence in favour of a relation between training and wage inequality between workers with different education level. On this basis, a dynamic general equilibrium (DGE) model with on-the-job training is developed and calibrated to match UK data. I use the framework to study the redistributional effects of training subsidies. The model is intentionally simple, to allow for a better understanding of the dynamics of macroeconomic variables after policy changes. The third chapter proposes a more articulated general equilibrium model which features training externalities and distortionary income taxes. I present evidence that motivates the use of this framework, and its underlying assumptions. Thus, I calibrate the model to replicate the salient characteristics of the UK economy and I employ it to evaluate the welfare effects of policy reforms on training. The main contributions of my work are summarised in the conclusions.
On the geometry of the LLSvS eightfold
Creators: name: Shinder, Evgeny
name: Soldatenkov, Andrey
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this note we make a few remarks about the geometry of the holomorphic symplectic manifold Z constructed by C.Lehn, M.Lehn, C.Sorger and D. van Straten as a two-step contraction of the variety of twisted cubic curves on a cubic fourfold Y in P^5. We show that Z is birational to a component of a moduli space of stable sheaves in the Calabi-Yau subcategory of the derived category of Y. Using this description we deduce that the twisted cubics contained in a hyperplane section Y_H of Y give rise to a Lagrangian subvariety Z_H in Z. For a generic choice of the hyperplane, Z_H is birational to the theta-divisor in the intermediate Jacobian of Y_H.
description: 14 pages, minor corrections
Demonstrative anaphora: forms and functions in full-text scientific articles
Creators: name: Brassell, Emily G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2000
Subjects: Scientific literature
Natural language processing
Linguistics--anaphora

description: This study examines the functions and characteristics of demonstrative anaphora (this, these, that, those) in a collection of full-text scientific documents, confirming that they play an important role in maintaining discourse focus and binding together cohesive sections of text. Unlike corpora in other subject domains, the Cystic Fibrosis database contains more demonstrative expressions than other class of anaphora. As participants in intersentential reference, demonstratives often refer to complex propositions rather than simple noun phrases. While this tendency complicates automated resolution, our results yield some suggestions toward a resolution algorithm. Primarily, we argue for the incorporation of demonstrative form since different types of demonstratives show different patterns regarding antecedent length and composition. Although further analysis is necessary, our findings provide a groundwork for future exploration.
Caroxylon salsola Thunberg 1782
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon salsola

description: 76. Caroxylon salsola Thunb. in Nova Genera Plantarum 2: 37 (1782).
 Type (designated here): ― [SOUTH AFRICA]. Promont. Bonae Spei [Cape of Good Hope]: Thunberg s.n. (lectotype S07-809!; isolectotypes S07-808!; S07-810!; S-G-7074!).
 Notes: ― This is the type of the genus Caroxylon, considered a taxonomic synonym (Botschantzev 1974a: 604; Setshogo 2005; Germishuizen et al. 2006; Klopper et al. 2006) of Salsola aphylla (reclassified by Tzvelev 1993 as Caroxylon aphyllum).
 Distribution: ― South Africa (WC): probably southern Namaqualand.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 169, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Topology-Aware Algorithm for Constructing Cartograms from Density-Equalising Map Projections
Creators: name: Gastner, Michael Thorsten
name: Phong Le, Nguyen
name: Z Miaji, Nihal
name: Singhania, Adi
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: classificationCode: 370403
subject: Geoscience data visualisation
classificationCode: 460807
subject: Information visualisation

description: Cartograms are maps in which the areas of enumeration units $\text{(}$e.g. administrative divisions$\text{)}$ are proportional to quantitative data $\text{(}$e.g. population$\text{)}$. Generating cartograms with density-equalising map projections guarantees that geographic neighbours remain neighbours in the cartograms if all boundaries are infinitely dense sequences of points. However, computers represent boundaries with only finitely many points, often causing invalid topologies in the cartogram. This talk shows how line densification and topology-aware simplification solve this problem.
Quantum relaxation of the Higgs mass
Creators: name: Kobakhidze, Archil
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I put forward a qualitatively new dynamical mechanism for solving the electroweak hierarchy problem that does not require new physics at the electroweak. I argue that the infrared fluctuations of the gravitational field may provide a partial screening of the Higgs mass, similar to the infrared screening of the electric charge in quantum electrodynamics.
description: 4 pages
Artefacts Package - First come first served: the impact of file position on code review
Creators: name: Fregnan, Enrico
Publisher: name: figshare
Year: 2022
Subjects: subject: 80309 Software Engineering
subject: FOS: Computer and information sciences

description: Artifacts Package of the accepted FSE 22 paper: "First come first served: the impact of file position on code review".
 The "pr_data.zip" file contains the Json data of the mined Pull Requests. Given its size, we separated it from the rest of the replication package (contained in the fse22-fregnan.zip file).
 See README.md for more information.
Central extensions of Lie algebras of symplectic and divergence free vector fields
Creators: name: Janssens, Bas
name: Vizman, Cornelia
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 17B56, 17B63, 17B66, 53D50, 58D05

description: In this review paper, we present several results on central extensions of the Lie algebra of symplectic (Hamiltonian) vector fields, and compare them to similar results for the Lie algebra of (exact) divergence free vector fields. In particular, we comment on universal central extensions and integrability to the group level.
description: 11 pages, review paper
Semiclassical evolution of correlations between observables
Creators: name: de Almeida, Alfredo M. Ozorio
name: Brodier, Olivier
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The trace of an arbitrary product of quantum operators with the density operator is rendered as a multiple phase space integral of the product of their Weyl symbols with the Wigner function. Interspersing the factors with various evolution operators, one obtains an evolving correlation. The kernel for the matching multiple integral that evolves within the Weyl representation is identified with the trace of a single compound unitary operator. Its evaluation within a semiclassical approximation then becomes a sum over the periodic trajectories of the corresponding classical compound canonical transformation. The search for periodic trajectories can be bypassed by an exactly equivalent initial value scheme, which involves a change of integration variable and a reduced compound unitary operator. Restriction of all the operators to observables with smooth non-oscillatory Weyl symbols reduces the evolving correlation to a single phase space integral. If each observable undergoes independent Heisenberg evolution, the overall correlation evolves classically. Otherwise, the kernel acquires a nonclassical phase factor, though it still depends on a purely classical compound trajectory: e.g. the fase for a double return of the quantum Loschmidt echo does not coincide with twice the phase for a single echo.
description: 18 pages, 6 figures
Topology-Aware Line Densification for Reprojected Curves on Maps
Creators: name: Gastner, Michael Thorsten
name: Z Miaji, Nihal
name: Singhania, Adi
name: Phong Le, Nguyen
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: classificationCode: 460807
subject: Information visualisation
classificationCode: 370403
subject: Geoscience data visualisation

description: Many map features, such as administrative borders, coastlines, roads or rivers, are conventionally represented as polylines on a Cartesian plane. However, these objects are located on the curved surface of the Earth, necessitating an approximation when representing them as flat polylines. Ideally, the positions of vertices along each polyline should be chosen to represent the topology of mapped features accurately. For example, boundaries between adjacent geographic regions should have coincident vertices to eliminate gaps or overlaps.Yet, a topologically correct representation in one map projection does not guarantee that the same vertices will generate a valid polyline topology in another map projection due to the distortion of straight lines into curves. To restore a valid topology, it may be necessary to insert additional vertices before transforming the polylines from one map projection to another.Conventional methods insert a fixed number of equidistant vertices between the original consecutive vertex pairs or add vertices at the midpoints of line segments that exceed a predetermined distance threshold. However, these simplistic approaches significantly increase the vertex count and do not ensure topological validity. In this presentation, we introduce an alternative method where vertex insertion is responsive to the local polyline geometry, thus ensuring a valid topology. The algorithm employs an auxiliary quadtree and its Delaunay triangulation to insert vertices (Figure 1). After projecting all the vertices, topology-aware line simplification is applied to reduce the vertex count.
Caroxylon seminudum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon seminudum

description: 79. Caroxylon seminudum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola seminuda Botsch. in Botanicheskii Zhurnal 58: 830 (1973).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Dist. Keetmanshoop: Gellop Ost Exp. Station, 27 April 1955, De Winter 3257 (holotype K-000243947!; isotypes LE-00011942!, M-0107408!, PRE-0374277-0!).
 Distribution: ― Namibia: Keetmanshoop Dist.; South Africa (WC, NC): Gamka Karoo, Bushmanland, Upper Karoo.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 169, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Caroxylon seydelii Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon seydelii

description: 81. Caroxylon seydelii (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola seydelii Botsch. in Botanicheskii Zhurnal 59: 42 (1974b).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Kalkriff am Nordufer des Swakop, 18 December 1956, Seydel 847’ (holotype M-0107407!; isotype LE-00011916!).
 Distribution: ― Namibia: Namib Desert near Swakopmund.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 169, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Analytic isolation of newforms of given level
Creators: name: Nelson, Paul D.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F03 (Primary), 22E50, 11F72 (Secondary)

description: We describe a method for understanding averages over newforms on $Γ_0(q)$ in terms of averages over all forms of some level. The method is simplest when $q$ is divisible by the cubes of its prime divisors.
description: 12 pages; references added, minor edits
Aspects of Anisotropic Fractional Quantum Hall Effect in Phosphorene
Creators: name: Ghazaryan, Areg
name: Chakraborty, Tapash
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have analyzed the effects of the anisotropic energy bands of phosphorene on magnetoroton branches for electrons and holes in the two Landau levels close to the band edges. We have found that the fractional quantum Hall effect gap in the lowest (highest) Landau level in conduction (valance) band is slightly larger than that for conventional semiconductor systems and therefore experimentally observable. We also found that the magnetoroton mode for both electrons and holes consists of two branches with two minima due to the anisotropy. Additionally, we show that due to the anisotropy, there is a second mode with positive dispersion, well separated from the magnetoroton mode for small wave vectors. These novel features of the collective mode can be observed in resonant inelastic light scattering experiments.
description: 5 pages, 3 figures
title: Consumer Factsheet: Hot water safety in bathrooms
Creators: name: Quinn, J.
name: Bridge, C.
Publisher: name: Home Modification Information Clearinghouse
Year: 2018

description: Hot water in the bathroom can be a hazard if the temperature is too high or too low. Water that is too hot can cause serious burn injuries, especially in the bath and shower. The purpose of this factsheet is to assist people to have hot water at a safe temperature and to choose the best way to control that temperature in their bathrooms. There is also extra safety advice for people having a higher risk of burn injuries due to their age or disability.
description: What temperature should hot water for the bathroom be? How can the temperature of hot water be controlled? Tempering Valves Thermostatic Mixing Valves Bathroom hot water safety - Checklist Where can I find more information?
Caroxylon smithii Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon smithii

description: 82. Caroxylon smithii (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola smithii Botsch. in Novosti Sist. Vyssh. Rast. 9: 148 (1972).
 Type: ― SOUTH AFRICA. Orange Free State [Free State Prov.]: Fauresmith, Farm Spitzkop, elev. c. 4600 ft, January 1928, Smith 5439 (holotype K-000243988!; isotypes K-000243987!, PRE-0375524-0!, Z-000002796!).
 ‒ Salsola brassicoides C.A.Sm., in schedis (Smith 5439 K-000243988!, PRE-0375524-0!, Z-000002796!).
 Distribution: ― South Africa (NC, FS): eastern Bushmanland, western Free State.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on pages 169-170, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Phase Transition of the Ising Model on Fractal Lattice
Creators: name: Genzor, Jozef
name: Gendiar, Andrej
name: Nishino, Tomotoshi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Phase transition of the Ising model is investigated on a planar lattice that has a fractal structure. On the lattice, the number of bonds that cross the border of a finite area is doubled when the linear size of the area is extended by a factor of four. The free energy and the spontaneous magnetization of the system are obtained by means of the higher-order tensor renormalization group method. The system exhibits the order-disorder phase transition, where the critical indices are different from that of the square-lattice Ising model. An exponential decay is observed in the density matrix spectrum even at the critical point. It is possible to interpret that the system is less entangled because of the fractal geometry.
description: 5 pages, 4 figures
title: Steiner Education: freedom, spirituality and creativity
Creators: name: Binetti, Giuseppe
Publisher: name: University of Glasgow
Year: 2020
Subjects: subject: Steiner, Steiner Waldorf, Steiner Education, Waldorf Education, Creativity, Spirituality, Freedom, Alternative Education, Progressive Education.

description: Although various aspects of Steiner Education and of Steiner’s philosophy and its related teaching approach have been explored in the literature, there appears to be few holistic studies into the ways in which this philosophy is practised and understood by teachers. This thesis moves from the available literature and explores Steiner’s philosophical background with the intention of shedding light on the pedagogical theories created by Steiner and how these are implemented in one Steiner school. The main focus of the research is on how Steiner’s philosophical notions of freedom, spirituality and creativity are enacted and understood in practice. The objective was to elucidate the nature and significance of these elements to learning, as well as understanding the physical context, conditions and arrangements in which they occur and are developed. To do this, an ethnographic study was conducted over a period of 9 months in a Steiner school in the UK. Qualitative data were collected through observations of participants, focus group and vis-a-vis interviews with staff, students, and parents, before being thematically analysed. The findings display a complex picture: on the one hand, it appears that Steiner’s philosophical background provides a common set of shared perspectives on what education is and this theoretical background appears to inform the practice of the teachers in the school. On the other hand, the three notions of freedom, spirituality and creativity do not emerge as separate domains, but rather as different elements of a unified educational practice represented by a holistic understanding of children’s development.
Microscopic dynamical description of proton-induced fission with the Constrained Molecular Dynamics (CoMD) Model
Creators: name: Vonta, N.
name: Souliotis, G. A.
name: Veselsky, M.
name: Bonasera, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The microscopic description of nuclear fission still remains a topic of intense basic research. Un- derstanding nuclear fission, apart from a theoretical point of view, is of practical importance for energy production and the transmutation of nuclear waste. In nuclear astrophysics, fission sets the upper limit to the nucleosynthesis of heavy elements via the r-process. In this work we initiated a systematic study of intermediate energy proton-induced fission using the Constrained Molecu- lar Dynamics (CoMD) code. The CoMD code implements an effective interaction with a nuclear matter compressibility of K=200 (soft EOS) with several forms of the density dependence of the nucleon-nucleon symmetry potential. Moreover, a constraint is imposed in the phase-space occu- pation for each nucleon restoring the Pauli principle at each time step of the collision. A proper choice of the surface parameter of the effective interaction has been made to describe fission. In this work, we present results of fission calculations for proton-induced reactions on : a) 232 Th at 27 and 63 MeV, b) 235 U at 10, 30, 60 and 100 MeV, and c) 238 U at 100 and 660 MeV. The calculated observables include fission-fragment mass distributions, total fission energies, neutron multiplicities and fission times. These observables are compared to available experimental data. We show that the microscopic CoMD code is able to describe the complicated many-body dynamics of the fission process at intermediate and high energy and give a reasonable estimate of the fission time scale. Sensitivity of the results to the density dependence of the nucleon symmetry potential (and, thus, the nuclear symmetry energy) is found. Further improvements of the code are necessary to achieve a satisfactory description of low energy fission in which shell effects play a dominant role.
description: 12 pages, 17 figures
Caroxylon spenceri Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon spenceri

description: 83. Caroxylon spenceri (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola spenceri Botsch. in Botanicheskii Zhurnal 63: 836 (1978).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Spencer Bay-Nordhuk: 12 January 1974, Giess & Robinson 13189 (holotype M-0107404!; isotypes PRE-0537056-0!, PRE-0654339-0!, WIND!).
 Distribution: ― Namibia: Namib Desert coast.
description: Published as part of Mucina, Ladislav, 2017, Caroxylon (Chenopodiaceae s. str.) in continental southern Africa and Madagascar: a preliminary nomenclatural synopsis and biogeographical considerations, pp. 151-178 in Phytotaxa 312 (2) on page 170, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544