cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Defect-induced band restructuring and length scales in twisted bilayer graphene
Creators: name: Baldo, Lucas
name: Löthman, Tomas
name: Holmvall, Patric
name: Black-Schaffer, Annica M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effects of single, multiple, and extended defects in the form of non-magnetic impurities and vacancies in twisted bilayer graphene (TBG) at and away from the magic angle, using a fully atomistic model and focusing on the behavior of the flat low-energy moiré bands. For strong impurities and vacancies in the $AA$ region we find a complete removal of one of the four moiré bands, resulting in a significant depletion of the charge density in the $AA$ regions even at extremely low defect concentrations. We find similar results for other defect locations, with the exception of the least coordinated sites in the $AB$ region, where defects instead result in a peculiar band replacement process within the moiré bands. In the vacancy limit, this process yields a band structure misleadingly similar to the pristine case. Moreover, we show that triple point fermions (TPFs), which are the crossing of the Dirac point by a flat band, appearing for single, periodic, defects, are generally not preserved when adding extended or multiple defects, and thus likely not experimentally relevant. We further identify two universal length scales for defects, consisting of charge modulations on the atomic scale and on the moiré scale, illustrating the importance of both the atomic and moiré structures for understanding TBG. We show that our conclusions hold beyond the magic angle and for fully isolated defects. In summary, our results demonstrate that the normal state of TBG and its moiré flat bands are extremely sensitive to both the location and strength of non-magnetic impurities and vacancies, which should have significant implications for any emergent ordered state.
description: 15 pages, 10 figures
Arctic Corridors and Northern Voices: Governing marine transportation in the Canadian Arctic (Tuktoyaktuk, Inuvialuit Settlement Region, Northwest Territories community report)
Creators: name: Carter, Natalie Ann
name: Dawson, Jackie
name: Parker, Colleen
name: Cary, Julia
name: Gordon, Holly
name: Kochanowicz, Zuzanna
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: Low impact shipping corridors
Inuit perspectives
Marine transportation governance
Culturally significant marine areas
Arctic shipping impact

description: Ship traffic in the Canadian Arctic nearly tripled between 1990 and 2015. The Government of Canada is developing a network of low-impact marine transportation corridors in the Arctic that encourages marine transportation traffic to use routes that pose less risk and minimize the impact on communities and the environment. The Low Impact Shipping Corridors will be a framework to guide future federal investments to support marine navigation safety in the North, including improved charting and increased hydrography, in partnership with Northerners. The corridors initiative is co-led by the Canadian Coast Guard, Transport Canada, and Canadian Hydrographic Service. Key considerations in the current prioritization of the Low Impact Shipping Corridors include identification of Inuit and Northerners’ perspectives on 1) the potential impact of marine vessels on marine areas used for cultural and livelihood activities, and on community members; and 2) potential management strategies for the corridors. This report reflects opinions gathered through participatory mapping, focus group discussions, and interviews with Tuktoyaktuk community members who were identified by local organizations as key knowledge holders.
A Family of Compact Complex-Symplectic Calabi-Yau Manifolds that are Nonkähler
Creators: name: Qin, Lizhen
name: Wang, Botong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: Algebraic Geometry (math.AG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32J27, 53D05

description: We construct a family of $6$-dimensional compact manifolds $M(A)$, which are simultaneously diffeomorphic to complex Calabi-Yau manifolds and symplectic Calabi-Yau manifolds. They have fundamental groups $\mathbb{Z} \oplus \mathbb{Z}$, their odd-dimensional Betti numbers are even, they satisfy the hard Lefschetz property, and their real homotopy types are formal. However, $M(A) \times Y$ are not homotopy equivalent to any compact Kähler manifold for any topological space $Y$.
description: Final version. To appear in Geometry and Topology
Arctic Corridors and Northern Voices: Governing marine transportation in the Canadian Arctic (Inuvik, Inuvialuit Settlement Region, Northwest Territories community report)
Creators: name: Carter, Natalie Ann
name: Dawson, Jackie
name: Parker, Colleen
name: Cary, Julia
name: Gordon, Holly
name: Kochanowicz, Zuzanna
name: Weber, Melissa
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2018
Subjects: Low impact shipping corridors
Inuit perspectives
Marine transportation governance
Culturally significant marine areas
Arctic shipping impact

description: Ship traffic in the Canadian Arctic nearly tripled between 1990 and 2015. The Government of Canada is developing a network of low-impact marine transportation corridors in the Arctic that encourages marine transportation traffic to use routes that pose less risk and minimize the impact on communities and the environment. The Low Impact Shipping Corridors will be a framework to guide future federal investments to support marine navigation safety in the North, including improved charting and increased hydrography, in partnership with Northerners. The corridors initiative is co-led by the Canadian Coast Guard, Transport Canada, and Canadian Hydrographic Service. Key considerations in the current prioritization of the Low Impact Shipping Corridors include identification of Inuit and Northerners’ perspectives on 1) the potential impact of marine vessels on marine areas used for cultural and livelihood activities, and on community members; and 2) potential management strategies for the corridors. This report reflects opinions gathered through participatory mapping, focus group discussions, and interviews with Inuvik community members who were identified by local organizations as key knowledge holders.
Caroxylon barbatum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon barbatum

description: 16. Caroxylon barbatum (Aellen) Mucina comb. nov.
 Basionym: ― Salsola barbata Aellen in Mitt. Bot. Staatssamml. München 4: 25 (1961).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Dist. Rehoboth: Ababis, häufig auf Niederterasse, 17 October 1939, Volk 941 (holotype M-0107438!; isotype LE-00011782!).
 Note: ― The accession LE-00011783 (J. P. H. Acocks 13196a; South Africa. Prov. Cape, dist. Calvinia, Rietkolk Oos) is listed by JSTOR Global Plants as a paratype of Salsola barbata.
 ‒ Salsola calcarea C.A.Sm., in schedis, Fleck 367a (holotype PRE-0374285-1!; isotype Z-000002797!), nom. nud. (Art. 38.1a of ICN).
 Distribution: ― Namibia: Klein Karas region, Rehoboth, Naukluft Mts, Namib Desert (Lüderitz); South Africa (NC, WC): Gamka Karoo, Namaqualand, central and northern Bushmanland.
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 158, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
MS Gr. class. c. 2 307
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 Subscriptio. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Detecting Strong Gravitational Lensing of Gravitational Waves with TianQin
Creators: name: Lin, Xin-yi
name: Zhang, Jian-dong
name: Dai, Liang
name: Huang, Shun-Jia
name: Mei, Jianwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: When gravitational waves (GWs) pass by a massive object on its way to Earth, a strong gravitational lensing effect will happen. Thus, the GW signal will be amplified, deflected, and delayed in time. Through analyzing the lensed GW waveform, physical properties of the lens can be inferred. On the other hand, neglecting lensing effects in the analysis of GW data may induce systematic errors in the estimating of source parameters. As a space-borne GW detector, TianQin will be launched in the 2030s. It is expected to detect dozens of mergers of massive black hole binaries (MBHBs) as far as z=15 and thus will have high probability to detect at least one lensed event during the mission lifetime. In this article, we discuss the capability of TianQin to detect lensed MBHB signals.Three lens models are considered in this work: the point mass model, the singular isothermal sphere (SIS) model, and the Navarro-Frenk-White (NFW) model. The sensitive frequency band for space-borne GW detectors is around millihertz, and the corresponding GW wavelength could be comparable to the lens gravitational length scale, which requires us to account for wave diffraction effects. In calculating lensed waveforms, we adopt the approximation of geometric optics at high frequencies to accelerate computation, while precisely evaluating the diffraction integral at low frequencies. Through a Fisher analysis, we analyze the accuracy to estimate the lens parameters. We find that the accuracy can reach to the level of 10^-3 for the mass of point mass and SIS lens and to the level of 10^-5 for the density of the NFW lens. We also assess the impact on the accuracy of estimating the source parameters and find that the improvement of the accuracy is dominated by the increasing of signal-to-noise ratio.
description: 12 pages, 8 figures, published version
Caroxylon caffrum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon caffrum

description: 17. Caroxylon caffrum (Sparrman) Mucina comb. nov.
 Basionym: ― Salsola caffra Sparrman in Resa Goda Hopps Udden 1772–76, 1: 310 (1783).
 Type: ― not designated.
 Notes: ― The suggestion by Ulbrich (1934), obviously followed by Botschantzev (1974a), that this taxon should be considered synonymous with C. aphyllum needs further study. In any case, the scanty verbal description given by Sparrman (1783) does not allow for such a conclusion. The only Salsola specimen lodged by Sparrman in S (Sparrman S 11-13704!) was independently identified as Caroxylon salsola and S. aphylla (see remarks on the herbarium sheet of Sparrman S 11-13704).
 Having seen only a scan of this voucher, I prefer to refrain from the formal typification of the name Salsola caffra (= Caroxylon caffrum) at this stage.
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 158, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Massive higher spins in d=3 unfolded
Creators: name: Zinoviev, Yu. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we construct an unfolded formulation for the massive bosonic higher spins in three dimensions as well as for their partially massless limit of the maximal depth. We begin with the equations for the one-forms coming from the frame-like gauge invariant Lagrangians for such fields and then we supplement them with the infinite number of equations for the appropriately chosen set of zero-forms.
description: 17 pages, no figures. Some comments added. Version to appear in J. Phys. A
MS Gr. class. c. 2 308
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 12. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Subdiffusive spin transport in disordered classical Heisenberg chains
Creators: name: McRoberts, Adam J.
name: Balducci, Federico
name: Moessner, Roderich
name: Scardicchio, Antonello
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the transport and equilibration properties of a classical Heisenberg chain, whose couplings are random variables drawn from a one-parameter family of power-law distributions. The absence of a scale in the couplings makes the system deviate substantially from the usual paradigm of diffusive spin hydrodynamics, and exhibit a regime of subdiffusive transport with an exponent changing continuously with the parameter of the distribution. We propose a solvable phenomenological model that correctly yields the subdiffusive exponent, thereby linking local fluctuations in the coupling strengths to the long-time, large-distance behaviour. It also yields the finite-time corrections to the asymptotic scaling, which can be important in fitting the numerical data. We show how such exponents undergo transitions as the distribution of the coupling gets wider, marking the passage from diffusion to a regime of slow diffusion, and finally to subdiffusion.
description: 10+3 pages, 5+4 figures
Caroxylon calluna Theodorova, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon calluna

description: 18. Caroxylon calluna (Drège ex C.H.Wright) Theodorova in Mucina, comb. nov.
 Basionym: ― Salsola calluna Drège ex C.H.Wright in Thiselton-Dyer, Fl. Capensis 5, 1: 454 (1912).
 Lectotype (designated by Wright 1912: 454): ― SOUTH AFRICA. Uitflugt, auf verschiedenen Stellen bei Steelkloof, 4000–5000 ft, December/January, Drège 8023b (lectotype W-0046461!;!; isolectotypes LE-00011835!, W-0046460!).
 ‒ “ Caroxylon callunum ” in Theodorova in Turczaninowia 14(3): 75 (2011), [comb. inval.]
 ‒ Salsola calluna Fenzl, in schedis, (Ecklon & Zeyher 1448 WU!).
 ‒ Salsola calluna Fenzl ex Drège in Flora 2, Beigabe: 50, 56, 217 (1843), nom. nud. (Art. 38.1a of ICN).
 Notes: ― Feodorova (2011) used a wrong form of the species epithet (‘ callunum ’). The epithet apparently alludes to Calluna vulgaris (Ericaceae) of which the flowering/fruiting branches of this Caroxylon species are remotely reminiscent. ‘ Calluna ’ is the nown and the specific epithet should be preserved. Moreover, when proposing her new combination, Feodorova (2011) also provided a wrong citation of the basionym, thus making her combination invalid. The combination is validated here and Feodorova’s authorship is preserved.
 Distribution: ― South Africa (FS, NC, WC?, EC): southern Bushmanland, Upper Karoo, Middelburg region, salt pan region of western Free State and 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 158, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Research Assistance Provided by Academic Law Libraries and Its Effects on Faculty Productivity
Creators: name: Rountree, Jonathan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013
Subjects: Law libraries--Reference services
Scholarly publishing
Academic libraries--Relations with faculty & curriculum

description: This paper describes a study done of the relationship between library-provided faculty research services and faculty productivity at American Bar Association accredited law schools.  The study consisted of a survey of law school librarians of faculty usage of faculty research services and the gathering of publicly available information for lists of published law journal articles, U.S. News & World Report rankings, and faculty size.  Ultimately, 54 law schools were included in the study.  Faculty productivity, both unweighted and weighted by prestige, was compared with the frequency and percentage of faculty using faculty research services, U.S. News & World Report law school rankings, and faculty size.  The top two correlations on faculty productivity were U.S. News & World Report rankings and faculty size, followed by either frequency of faculty use or percentage of faculty use depending on whether productivity was weighted or unweighted.
Nonlinearly scalarized rotating black holes in Einstein-scalar-Gauss-Bonnet theory
Creators: name: Lai, Meng-Yun
name: Zou, De-Cheng
name: Yue, Rui-Hong
name: Myung, Yun Soo
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we discuss a fully nonlinear mechanism for the formation of scalarized rotating black holes in Einstein-scalar-Gauss-Bonnet gravity, where Kerr black holes are linearly stable, but unstable against nonlinear scalar perturbations. With the help of the pseudospectral method, we obtain a spectrum of nonlinearly scalarized rotating black hole solutions with multiple scalarized branches. Moreover, we investigate the thermodynamic properties of nonlinearly scalarized rotating black holes and find the phase transition between Kerr and these scalarized black holes.
description: 23 pages, 8 figures and 2 tables
Rate enhancement of gated drift-diffusion process by optimal resetting
Creators: name: Biswas, Arup
name: Pal, Arnab
name: Mondal, Debasish
name: Ray, Somrita
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: `Gating' is a widely observed phenomenon in biochemistry that describes the transition between the activated (or open) and deactivated (or closed) states of an ion-channel, which makes transport through that channel highly selective. In general, gating is a mechanism that imposes an additional restriction on a transport, as the process ends only when the `gate' is open and continues otherwise. When diffusion occurs in presence of a constant bias to a {\it gated} target, i.e., to a target that switches between an open and a closed state, the dynamics essentially slows down compared to {\it ungated} drift-diffusion, resulting in an increase in the mean completion time. In this work, we utilize stochastic resetting as an external protocol to counterbalance the delay due to gating. We consider a particle that undergoes drift-diffusion in the presence of a stochastically gated target and is moreover subjected to a rate-limiting resetting dynamics. Calculating the minimal mean completion time rendered by an optimal resetting for this exactly-solvable system, we construct a phase diagram that owns three distinct phases: (i) where resetting can make gated drift-diffusion faster even compared to the original ungated process, (ii) where resetting still expedites gated drift-diffusion, but not beyond the original ungated process, and (iii) where resetting fails to expedite gated drift-diffusion. Gated drift-diffusion aptly models various stochastic processes such as chemical reactions that exclusively take place for certain activated state of the reactants. Our work predicts the conditions where stochastic resetting can act as a useful strategy to enhance the rate of such processes without compromising on their selectivity.
description: 15 Pages, 12 Figures
Bibliographie der Geschichte, Landes- und Volkskunde von Stadt und Kanton Zürich: Juli 1990-Juli 1991
Creators: name: Kohler, Ludwig
name: Schütz, Margrit
Publisher: name: Buchdruckerei a/d Sihl AG
Year: 1991
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Aus dem Zürcher Taschenbuch 1992.
Caroxylon campylopterum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon campylopterum

description: 19. Caroxylon campylopterum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola campyloptera Botsch. in Botanicheskii Zhurnal 59: 38 (1974b).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Dist. Bethanien: Churutabis (BET 108), in Rinnsal auf Lehmfläche unterhalb Tafelbergen, 27 Sep 1972, Merxmüller & Giess 28865 (holotype M-0107437!; isotypes K-000243944!; LE-00011836!, PRE-0487787-0!).
 Distribution: ― Namibia: Bethanien District.
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 159, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Bibliographie der Geschichte, Landes- und Volkskunde von Stadt und Kanton Zürich: Juli 1995-Juni 1996
Creators: name: Suter, Meinrad
name: Schütz, Margrit
Publisher: name: Druckerei a/d Sihl AG
Year: 1996
Subjects: subject: 010 Bibliografie
subject: Kanton Zürich
subject: Zürich
subject: Bibliografie
subject: Geschichte
subject: Landeskunde
subject: Volkskunde

description: Separatdruck aus dem Zürcher Taschenbuch auf das Jahr 1997.
Computing Canonical Heights on Elliptic Curves in Quasi-Linear Time
Creators: name: Müller, J. Steffen
name: Stoll, Michael
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G50, 14G40, 11G05, 11Y16

description: We introduce an algorithm that can be used to compute the canonical height of a point on an elliptic curve over the rationals in quasi-linear time. As in most previous algorithms, we decompose the difference between the canonical and the naive height into an archimedean and a non-archimedean term. Our main contribution is an algorithm for the computation of the non-archimedean term that requires no integer factorization and runs in quasi-linear time.
description: 15 pages. v2: Fixed an inaccuracy in Algorithm 6.1 pointed out by E. Wells. Minor changes in Sections 4 and 6. Updated timings
MS Gr. class. c. 2 309
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 5. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Task Assignment on Multi-Skill Oriented Spatial Crowdsourcing
Creators: name: Cheng, Peng
name: Lian, Xiang
name: Chen, Lei
name: Han, Jinsong
name: Zhao, Jizhong
Publisher: name: arXiv
Year: 2015
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: With the rapid development of mobile devices and crowdsourcing platforms, the spatial crowdsourcing has attracted much attention from the database community. Specifically, the spatial crowdsourcing refers to sending location-based requests to workers, based on their current positions. In this paper, we consider a spatial crowdsourcing scenario, in which each worker has a set of qualified skills, whereas each spatial task (e.g., repairing a house, decorating a room, and performing entertainment shows for a ceremony) is time-constrained, under the budget constraint, and required a set of skills. Under this scenario, we will study an important problem, namely multi-skill spatial crowdsourcing (MS-SC), which finds an optimal worker-and-task assignment strategy, such that skills between workers and tasks match with each other, and workers' benefits are maximized under the budget constraint. We prove that the MS-SC problem is NP-hard and intractable. Therefore, we propose three effective heuristic approaches, including greedy, g-divide-and-conquer and cost-model-based adaptive algorithms to get worker-and-task assignments. Through extensive experiments, we demonstrate the efficiency and effectiveness of our MS-SC processing approaches on both real and synthetic data sets.
description: 15 pages
MS Gr. class. c. 2 310
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 6. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Caroxylon cauliflorum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon cauliflorum

description: 20. Caroxylon cauliflorum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola cauliflora Botsch. in Botanicheskii Zhurnal 66, 7: 1036 (1981).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. [Gibeon]: Farm Noronaub (Kransfontein) GIB 71, in Fläche unterhalb Kalkabbruch, 7 January 1965, Giess 8327 (holotype K-000243994!; isotypes LE-00011837!, PRE-0494626-0!, WAG-0000436!).
 Distribution: ― Namibia: Gibeon region.
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 159, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
Primal-dual regression approach for Markov decision processes with general state and action space
Creators: name: Belomestny, Denis
name: Schoenmakers, John G. M.
Publisher: name: Weierstrass Institute
Year: 2022
Subjects: subject: Markov decision processes
subject: dual representation
subject: pseudo regression
subject: 90C40
subject: 65C05
subject: 62G08

description: We develop a regression based primal-dual martingale approach for solving finite time horizon MDPs with general state and action space. As a result, our method allows for the construction of tight upper and lower biased approximations of the value functions, and, provides tight approximations to the optimal policy. In particular, we prove tight error bounds for the estimated duality gap featuring polynomial dependence on the time horizon, and sublinear dependence on the cardinality/dimension of the possibly infinite state and action space. From a computational point of view the proposed method is efficient since, in contrast to usual duality-based methods for optimal control problems in the literature, the Monte Carlo procedures here involved do not require nested simulations.
Analytical Equivalent Circuits for Three-dimensional Metamaterials and Metagratings
Creators: name: Alex-Amor, Antonio
name: Moreno-Rodríguez, Salvador
name: Padilla, Pablo
name: Valenzuela-Valdés, Juan F.
name: Molero, Carlos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In recent times, three-dimensional (3D) metamaterials have undergone a revolution driven mainly by the popularization of 3D-printing techniques, which has enabled the implementation of modern microwave and photonic devices with advanced functionalities. However, the analysis of 3D metamaterials is complex and computationally costly in comparison to their 1D and 2D counterparts due to the intricate geometries involved. In this paper, we present a fully-analytical framework based on Floquet-Bloch modal expansions of the electromagnetic fields and integral-equation methods for the analysis of 3D metamaterials and metagratings. Concretely, we focus on 3D configurations formed by periodic arrangements of rectangular waveguides with longitudinal slot insertions. The analytical framework is computationally efficient compared to full-wave solutions and also works under oblique incidence conditions. Furthermore, it comes associated with an equivalent circuit that allows to gain physical insight into the scattering and diffraction phenomena. The analytical equivalent circuit is tested against full-wave simulations in commercial software CST. Simulation results show that the proposed 3D structures provide independent polarization control of the two orthogonal polarizations states. This key property is of potential interest for the production of full-metal polarizers, such as the one illustrated.
Methods Ten Year Olds Use To Select Reading Material
Creators: name: Tardiff, Melissa
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003
Subjects: Book selection--Children
Children--Reading habits
Children--Book selection

description: This study describes a series of focus group interviews of ten year olds placed in the media center of an elementary school in central North Carolina. The interviews were conducted to determine the different methods ten year olds use to select reading material. The methods the students used to select reading material were: reading the blurb on the back of the book or a section in the book, looking at the title, looking for a particular author, looking at the cover, by the book's topic or genre, by the language the book is written in, using the computer to find books, by peer recommendation, and by browsing. Almost none of the participants asked a librarian or another adult to help them select reading material.
Techniques for the treatment of IR divergences in decay processes at NLO and application to the top-quark decay
Creators: name: Basso, Lorenzo
name: Dittmaier, Stefan
name: Huss, Alexander
name: Oggero, Luisa
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the extension of two general algorithms for the treatment of infrared singularities arising in electroweak corrections to decay processes at next-to-leading order: the dipole subtraction formalism and the one-cutoff slicing method. The former is extended to the case of decay kinematics which has not been considered in the literature so far. The latter is generalized to production and decay processes with more than two charged particles, where new "surface" terms arise. Arbitrary patterns of massive and massless external particles are considered, including the treatment of infrared singularities in dimensional or mass regularization. As an application of the two techniques we present the calculation of the next-to-leading-order QCD and electroweak corrections to the top-quark decay width including all off-shell and decay effects of intermediate W bosons. The result, e.g., represents a building block of a future calculation of NLO electroweak effects to off-shell top-quark pair (WWbb) production. Moreover, this calculation can serve as the first step towards an event generator for top-quark decays at next-to-leading order accuracy, which can be used to attach top-quark decays to complicated many-particle top-quark processes, such as for tt+H or tt+jets.
description: 37 pages, 8 figures
Low-Rate Smartphone Videoscopy for Microsecond Luminescence Lifetime Imaging with Machine Learning
Creators: name: Wang, Yan
name: Sadeghi, Sina
name: Paul, Rajesh
name: Hetzler, Zach
name: Danilov, Evgeny
name: Ligler, Frances S.
name: Wei, Qingshan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Time-resolved techniques have been widely used in time-gated and luminescence lifetime imaging. However, traditional time-resolved systems require expensive lab equipment such as high-speed excitation sources and detectors or complicated mechanical choppers to achieve high repetition rates. Here, we present a cost-effective and miniaturized smartphone lifetime imaging system integrated with a pulsed UV LED for 2D luminescence lifetime imaging using a videoscopy-based virtual chopper (V-chopper) mechanism combined with machine learning. The V-chopper method generates a series of time-delayed images between excitation pulses and smartphone gating so that the luminescence lifetime can be measured at each pixel using a relatively low acquisition frame rate (e.g., 30 fps) without the need for excitation synchronization. Europium (Eu) complex dyes with different luminescent lifetimes ranging from microseconds to seconds were used to demonstrate and evaluate the principle of V-chopper on a 3D-printed smartphone microscopy platform. A convolutional neural network (CNN) model was developed to automatically distinguish the gated images in different decay cycles with an accuracy of >99.5%. The current smartphone V-chopper system can detect lifetime down to ~75 microseconds utilizing the default phase shift between the smartphone video rate and excitation pulses and in principle can detect much shorter lifetimes by accurately programming the time delay. This V-chopper methodology has eliminated the need for the expensive and complicated instruments used in traditional time-resolved detection and can greatly expand the applications of time-resolved lifetime technologies.
MS Gr. class. c. 2 311
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 8. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Caroxylon cryptopterum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon cryptopterum

description: 24. Caroxylon cryptopterum (Aellen) Mucina comb. nov.
 Basionym: ― Salsola cryptoptera Aellen in Mitt. Bot. Staatssamml. München 4: 26 (1961).
 Type: ― SOUTH-WEST AFRICA [NAMIBIA]. Dist. Rehoboth: Ababis, 27 October 1939, Volk 939 (holotype M-0107435!).
 Distribution: ― Namibia: Rehoboth and Karasburg districts, Grünau, Sperrgebiet; South Africa?
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 159, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
The Compositional Structure of the Asteroid Belt
Creators: name: DeMeo, Francesca E.
name: Alexander, Conel M. O'D.
name: Walsh, Kevin J.
name: Chapman, Clark R.
name: Binzel, Richard P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The past decade has brought major improvements in large-scale asteroid discovery and characterization with over half a million known asteroids and over 100,000 with some measurement of physical characterization. This explosion of data has allowed us to create a new global picture of the Main Asteroid Belt. Put in context with meteorite measurements and dynamical models, a new and more complete picture of Solar System evolution has emerged. The question has changed from "What was the original compositional gradient of the Asteroid Belt?" to "What was the original compositional gradient of small bodies across the entire Solar System?" No longer is the leading theory that two belts of planetesimals are primordial, but instead those belts were formed and sculpted through evolutionary processes after Solar System formation. This article reviews the advancements on the fronts of asteroid compositional characterization, meteorite measurements, and dynamical theories in the context of the heliocentric distribution of asteroid compositions seen in the Main Belt today. This chapter also reviews the major outstanding questions relating to asteroid compositions and distributions and summarizes the progress and current state of understanding of these questions to form the big picture of the formation and evolution of asteroids in the Main Belt. Finally, we briefly review the relevance of asteroids and their compositions in their greater context within our Solar System and beyond.
description: Accepted chapter in Asteroids IV in the Space Science Series to be published Fall 2015
Supplementary Materials from Distinct developmental mechanisms influence sexual dimorphisms in the milkweed bug Oncopeltus fasciatus
Creators: name: Just, Josefine
name: Laslo, Mara
name: Lee, Ye Jin
name: Yarnell, Michael
name: Zhang, Zhuofan
name: Angelini, David R.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: Developmental Biology

description: Supplementary Methods, Tables and Figures
MS Gr. class. c. 2 312
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 18. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
Automated Paper Screening for Clinical Reviews Using Large Language Models
Creators: name: Guo, Eddie
name: Gupta, Mehul
name: Deng, Jiawen
name: Park, Ye-Jean
name: Paget, Mike
name: Naugler, Christopher
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Objective: To assess the performance of the OpenAI GPT API in accurately and efficiently identifying relevant titles and abstracts from real-world clinical review datasets and compare its performance against ground truth labelling by two independent human reviewers. Methods: We introduce a novel workflow using the OpenAI GPT API for screening titles and abstracts in clinical reviews. A Python script was created to make calls to the GPT API with the screening criteria in natural language and a corpus of title and abstract datasets that have been filtered by a minimum of two human reviewers. We compared the performance of our model against human-reviewed papers across six review papers, screening over 24,000 titles and abstracts. Results: Our results show an accuracy of 0.91, a sensitivity of excluded papers of 0.91, and a sensitivity of included papers of 0.76. On a randomly selected subset of papers, the GPT API demonstrated the ability to provide reasoning for its decisions and corrected its initial decision upon being asked to explain its reasoning for a subset of incorrect classifications. Conclusion: The GPT API has the potential to streamline the clinical review process, save valuable time and effort for researchers, and contribute to the overall quality of clinical reviews. By prioritizing the workflow and acting as an aid rather than a replacement for researchers and reviewers, the GPT API can enhance efficiency and lead to more accurate and reliable conclusions in medical research.
description: 15 pages, 2 figures, 4 tables
Tracing the origin of azimuthal gluon correlations in the color glass condensate
Creators: name: Lappi, T.
name: Schenke, B.
name: Schlichting, S.
name: Venugopalan, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine the origins of azimuthal correlations observed in high energy proton-nucleus collisions by considering the simple example of the scattering of uncorrelated partons off color fields in a large nucleus. We demonstrate how the physics of fluctuating color fields in the color glass condensate (CGC) effective theory generates these azimuthal multiparticle correlations and compute the corresponding Fourier coefficients v_n within different CGC approximation schemes. We discuss in detail the qualitative and quantitative differences between the different schemes. We will show how a recently introduced color field domain model that captures key features of the observed azimuthal correlations can be understood in the CGC effective theory as a model of non-Gaussian correlations in the target nucleus.
description: 15 pages, 6 figures, RevTeX. V2: small clarifications and added references. To be published in JHEP
Caroxylon dealatum Mucina 2017, comb. nov.
Creators: name: Mucina, Ladislav
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Amaranthaceae
Caroxylon
Caroxylon dealatum

description: 25. Caroxylon dealatum (Botsch.) Mucina comb. nov.
 Basionym: ― Salsola dealata Botsch. in Botanicheskii Zhurnal 58: 820 (1973).
 Type: ― SOUTH AFRICA. Cape Prov. [Northern Cape Prov.]: Hanover, 18 miles NW by W of Hanover, central upper Karoo flood plain, c. 4400 ft elev., 26 October 1954, Acocks 17830 (holotype LE-00011849!; isotypes PRE-0372005-0!, PRE-0372009-0!).
 Distribution: ― South Africa (NC, WC, EC): Gamka Karoo (Beaufort West), Bushmanland, Upper Karoo (Hanover, Carnarvon, Richmond), Middelburg.
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 159, DOI: 10.11646/phytotaxa.312.2.1, http://zenodo.org/record/13701544
On a permutation problem for finite abelian groups
Creators: name: Ge, Fan
name: Sun, Zhi-Wei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: Let $G$ be a finite additive abelian group with exponent $n>1$, and let $a_1,\ldots,a_{n-1}\in G$. We show that there is a permutation $σ\in S_{n-1}$ such that all the elements $sa_{σ(s)}\ (s=1,\ldots,n-1)$ are nonzero if and only if $$\left|\left\{1\le s
description: 7 pages, final published version
MS Gr. class. c. 2 313
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 16. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova
A Mechanistic Model of the Organization of Cell Shapes in Epithelial Tissues
Creators: name: Malakar, Kanaya
name: Rubenstein, Rafael I.
name: Bi, Dapeng
name: Chakraborty, Bulbul
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Biological Physics (physics.bio-ph)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The organization of cells within tissues plays a vital role in various biological processes, including development and morphogenesis. As a result, understanding how cells self-organize in tissues has been an active area of research. In our study, we explore a mechanistic model of cellular organization that represents cells as force dipoles that interact with each other via the tissue, which we model as an elastic medium. By conducting numerical simulations using this model, we are able to observe organizational features that are consistent with those obtained from vertex model simulations. This approach provides valuable insights into the underlying mechanisms that govern cellular organization within tissues, which can help us better understand the processes involved in development and disease.
description: 21 pages, 9 figures, replaced with a newer version
Atmospheric Escape by Magnetically Driven Wind from Gaseous Planets II --Effects of Magnetic Diffusion--
Creators: name: Tanaka, Yuki A.
name: Suzuki, Takeru K.
name: Inutsuka, Shu-ichiro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate roles of Alfvenic waves in the weakly-ionized atmosphere of hot Jupiters by carrying out non-ideal magnetohydrodynamic (MHD) simulations with Ohmic diffusion in one-dimensional magnetic flux tubes. Turbulence at the surface excites Alfven waves and they propagate upward to drive hot (~ 10^4 K) outflows. The magnetic diffusion plays an important role in the dissipation of the Alfvenic waves in the weakly ionized atmosphere of hot Jupiters. The mass-loss rate of the spontaneously driven planetary wind is considerably reduced, in comparison with that obtained from ideal MHD simulations because the Alfvenic waves are severely damped at low altitudes in the atmosphere, whereas the wave heating is still important in the heating of the upper atmosphere. Dependence on the surface temperature, planetary radius, and velocity dispersion at the surface is also investigated. We find an inversion phenomenon of the transmitted wave energy flux; the energy flux carried by Alfven waves in the upper atmosphere has a nonmonotonic correlation with the input energy flux from the surface in a certain range of the surface temperature because the resistivity is determined by the global physical properties of the atmosphere in a complicated manner. We also point out that the heating and mass loss are expected only in limited zones if the open magnetic field is confined in the limited regions.
description: 12 pages, 14 figures, accepted for publication in ApJ
The Cardinality Bound on the Information Bottleneck Representations is Tight
Creators: name: Benger, Etam
name: Asoodeh, Shahab
name: Chen, Jun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The information bottleneck (IB) method aims to find compressed representations of a variable $X$ that retain the most relevant information about a target variable $Y$. We show that for a wide family of distributions -- namely, when $Y$ is generated by $X$ through a Hamming channel, under mild conditions -- the optimal IB representations require an alphabet strictly larger than that of $X$. This implies that, despite several recent works, the cardinality bound first identified by Witsenhausen and Wyner in 1975 is tight. At the core of our finding is the observation that the IB function in this setting is not strictly concave, similar to the deterministic case, even though the joint distribution of $X$ and $Y$ is of full support. Finally, we provide a complete characterization of the IB function, as well as of the optimal representations for the Hamming case.
description: 7 pages, 2 figures, ISIT 2023 submission
MS Gr. class. c. 2 314
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 339 col. 20. Philodemus, De Stoicis
Drawing by Giuseppe (?) Casanova