cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Somos Españoles aqui: Dialect as an index of pride and cultural difference in Buenos Aires
Creators: Plunkett, Clare C.
Publisher: name: Columbia University
Year: 2012
Subjects: Language and languages
Ethnology
Latin Americans

description: A dialect is linked to social identity and a distinctive scheme of cultural values, and in this paper I show that the traits of the Buenos Aires dialect are linked to the characterization of its citizens as "snobby." Specifically there are two key traits that do not appear as standardized aspects of any other South American country's habla culta, or chosen national dialect. These are the vos, a pronoun that completely eclipses the tu as the standard second-person singular; and the pronunciation of sheismo, wherein the double L is a voiceless post-alveolar sibilant fricative, and is pronounced as the "s" sound in "mission." This paper will examine films, prescriptives, utterances, metadiscourse and individual survey data in order to analyze these particularities of rioplatense Spanish and their implications in production and perceptions of Argentinian culture.
On dynamical localization corrections to band transport
Creators: name: Fratini, S.
name: Ciuchi, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Bloch-Boltzmann transport theory fails to describe the carrier diffusion in current crystalline organic semiconductors, where the presence of large-amplitude thermal molecular motions causes substantial dynamical disorder. The charge transport mechanism in this original situation is now understood in terms of a transient localization of the carriers' wavefunctions, whose applicability is however limited to the strong disorder regime. In order to deal with the ever-improving performances of new materials, we develop here a unified theoretical framework that includes transient localization theory as a limiting case, and smoothly connects with the standard band description when molecular disorder is weak. The theory, which specifically adresses the emergence of dynamical localization corrections to semiclassical transport, is used to determine a "transport phase diagram" of high-mobility organic semiconductors.
description: 14 pages, 6 figures completely revised version
Model for convection in binary liquids
Creators: name: Hollinger, St.
name: Luecke, M.
name: Mueller, H. W.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A minimal, analytically manageable Galerkin type model for convection in binary mixtures subject to realistic boundary conditions is presented. The model elucidates and reproduces the typical bifurcation topology of extended stationary and oscillatory convective states seen for negative Soret coupling: backwards stationary and Hopf bifurcations, saddle node bifurcations to stable strongly nonlinear stationary and traveling wave (TW) states, and merging of the TW solution branch with stationary states. Also unstable standing wave solutions are obtained. A systematic analysis of the concentration balance for liquid mixture parameters has lead to a representation of the concentration field in terms of two linear and two nonlinear modes. This truncation captures the important large--scale effects in the laterally averaged concentration field resulting from advective and diffusive mixing. Also the fact that with increasing flow intensity along the TW solution branch the frequency decreases monotonically in the same way as the mixing increases --- the variance of the concentration distribution decreases --- is ensured and reproduced well. Universal scaling relations between flow intensity, frequency, and variance of the concentration distribution (degree of mixing) in a TW are predicted by the model and have been confirmed by numerical solutions of the full equations. The validity of the model is checked by comparison with numerical solutions of the full field equations.
description: 16 two-column pages with 9 figures included
Pentanisia ouranogyne S. Moore
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Pentanisia
Pentanisia ouranogyne

description: Pentanisia ouranogyne S.Moore  —
Habit: Herb.
Habitat: LMDF; up to 2 500 m. Distribution: II.
Voucher: N/A.
References: Fries & Fries (1929), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 74, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Enumeration of lozenge tilings of hexagons with a central triangular hole
Creators: name: Ciucu, Mihai
name: Eisenkölbl, Theresia
name: Krattenthaler, C.
name: Zare, D.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A15 05A16 05A17 05A19 05B45 33C20 33C70 52C20

description: We deal with unweighted and weighted enumerations of lozenge tilings of a hexagon with side lengths $a,b+m,c,a+m,b,c+m$, where an equilateral triangle of side length $m$ has been removed from the center. We give closed formulas for the plain enumeration and for a certain $(-1)$-enumeration of these lozenge tilings. In the case that $a=b=c$, we also provide closed formulas for certain weighted enumerations of those lozenge tilings that are cyclically symmetric. For $m=0$, the latter formulas specialize to statements about weighted enumerations of cyclically symmetric plane partitions. One such specialization gives a proof of a conjecture of Stembridge on a certain weighted count of cyclically symmetric plane partitions. The tools employed in our proofs are nonstandard applications of the theory of nonintersecting lattice paths and determinant evaluations. In particular, we evaluate the determinants $\det_{0\le i,j\le n-1}\big(\om δ_{ij}+\binom {m+i+j}j\big)$, where $\om$ is any 6th root of unity. These determinant evaluations are variations of a famous result due to Andrews (Invent. Math. 53 (1979), 193--225), which corresponds to $\om=1$.
description: 57 pages, AmS-LaTeX, uses TeXDraw
Pattern formation of reaction-diffusion system having self-determined flow in the amoeboid organism of Physarum plasmodium
Creators: name: Yamada, H.
name: Nakagaki, T.
name: Ito, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The amoeboid organism, the plasmodium of Physarum polycephalum, behaves on the basis of spatio-temporal pattern formation by local contraction-oscillators. This biological system can be regarded as a reaction-diffusion system which has spatial interaction by active flow of protoplasmic sol in the cell. Paying attention to the physiological evidence that the flow is determined by contraction pattern in the plasmodium, a reaction-diffusion system having self-determined flow arises. Such a coupling of reaction-diffusion-advection is a characteristic of the biological system, and is expected to relate with control mechanism of amoeboid behaviours. Hence, we have studied effects of the self-determined flow on pattern formation of simple reaction-diffusion systems. By weakly nonlinear analysis near a trivial solution, the envelope dynamics follows the complex Ginzburg-Landau type equation just after bifurcation occurs at finite wave number. The flow term affects the nonlinear term of the equation through the critical wave number squared. Contrary to this, wave number isn't explicitly effective with lack of flow or constant flow. Thus, spatial size of pattern is especially important for regulating pattern formation in the plasmodium. On the other hand, the flow term is negligible in the vicinity of bifurcation at infinitely small wave number, and therefore the pattern formation by simple reaction-diffusion will also hold. A physiological role of pattern formation as above is discussed.
description: REVTeX, one column, 7 pages, no figure
T-Dualities and Doubled Geometry of the Principal Chiral Model
Creators: name: Marotta, Vincenzo E.
name: Pezzella, Franco
name: Vitale, Patrizia
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Principal Chiral Model (PCM) defined on the group manifold of SU(2) is here investigated with the aim of getting a further deepening of its relation with Generalized and Doubled Geometry. A one-parameter family of equivalent Hamiltonian descriptions is introduced, and cast into the form of Born geometries. Then O(3,3) duality transformations of the target phase space are performed and we show that the resulting dual models are defined on the group SB(2,C) which is the Poisson-Lie dual of SU(2) in the Iwasawa decomposition of the Drinfel'd double SL(2, C). Moreover, starting from the Lagrangian approach, a new kind of duality is found between the SU(2) PCM and the natural one defined on SB(2,C) which is not an isometry of the target phase space. A parent action with doubled degrees of freedom and configuration space SL(2, C) is then defined that reduces to either one of the dually related models, once suitable constraints are implemented.
description: 41 pages, revised version published in JHEP
Apollonian Circle Packings: Number Theory
Creators: name: Graham, R. L.
name: Lagarias, J. C.
name: Mallows, C. L.
name: Wilks, A. R.
name: Yan, C. H.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11XXX

description: Apollonian circle packings arise by repeatedly filling the interstices between mutually tangent circles with further tangent circles. It is possible for every circle in such a packing to have integer radius of curvature, and we call such a packing an {\em integral Apollonian circle packing.} This paper studies number-theoretic properties of the set of integer curvatures appearing in such packings. Each Descartes quadruple of four tangent circles in the packing gives an integer solution to the {\em Descartes equation}, which relates the radii of curvature of four mutually tangent circles: $2 (x^2 + y^2 + z^2 + w^2) - (x + y + z + w)^2 = 0.$ Each integral Apollonian circle packing is classified by a certain {\em root quadruple} of integers that satisfies the Descartes equation, and that corresponds to a particular quadruple of circles appearing in the packing. We determine asymptotics for the number of root quadruples of size below $T$. We study which integers occur in a given integer packing, and determine congruence restrictions which sometimes apply. Finally, we present evidence suggesting that the set of integer radii of curvatures that appear in an integral Apollonian circle packing has positive density, and in fact represents all sufficiently large integers not excluded by congruence conditions. In a series of companion papersr ``Apollonian Circle Packings: Geometry and Group Theory,'' we investigate a variety of group-theoretic properties of these configurations, as well as various extensions to higher dimensions and other spaces, such as hyperbolic space.
description: 53 pages, 4 figures
Final results of the cover system test panel trials at the Pierina mine
Creators: name: Milczarek, Michael
name: Orellana, R.
name: Ludwick, W.
name: Zhan, G.
name: Baumann, W.
name: Rice, Robert C.
name: Yao, Tzung Mow
name: Keller, Jason
Publisher: name: The University of British Columbia
Year: 2011

description: Two large-scale multi-layer cover system test panels were constructed on a side-slope at the Minera Barrick Misquichilca Pierina mine near Huaraz, Peru. The test panels consisted of the following layers: 1) 38 cm of clay/silt material compacted to approximately 90% of maximum density overlain with 30 cm of topsoil and 2) 55 cm of uncompacted clay/silt material overlain with 30 cm of topsoil. Suction breaks were installed in the topsoil every 10 meters along the slope. Precipitation, evaporation, stormwater runoff, water content, soil water potential and direct percolation data was collected for three years followed by a post-test excavation and field testing program. Net percolation into the leach ore increased over time, especially in the compacted clay test panel. The post-test excavation data showed that the hydraulic conductivity of both clay liners increased to similar ranges and that rooting of grass species was significant in both panels up to depths exceeding 1.5 meters. Rooting frequency and size were generally larger and deeper in the uncompacted clay test panel. Based on these data, there appears to be no long-term advantage to compacting the clay liner. [All papers were considered for technical and language appropriateness by the organizing committee.]
Pentas lanceolata var. nemorosa Verdc.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Pentas
Pentas lanceolata
Pentas lanceolata var. nemorosa (chiov.) verdc.

description: Pentas lanceolata var. nemorosa (Chiov.) Verdc.  —
Habit: Herb.
Habitat: LMDF; up to 2 300 m. Distribution: II.
 Voucher: Burgret Route, Alt. 2 195 m, 28 Aug. 1972, Clarke et al. 69M (EA).
Reference: Fries & Fries (1929).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 74, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Songs of Profit, Songs of Loss: Private Equity Investing in New York City
Creators: Souleles, Daniel S.
Publisher: name: Columbia University
Year: 2015
Subjects: Private equity
Capitalists and financiers
Ethnology

description: This dissertation is an ethnographic description of the process by which private equity investors buy, manage, and sell companies for profit, all while private equity, as an industry, manages around $3.5 trillion of capital. Drawing from data gathered from the summer of 2012 through fall of 2014, this dissertation offers an account of investing that diverges from other ethnographic cases in that it relies on ongoing conversations about value and time that investors have, which seek to justify the decisions investors make. Once I explain how investors find and create value as well as the opportune time to invest, I explain how this negotiation fits into a stereotyped, formalized deal process, which acts like a total social fact in rearranging people and wealth in social life. I ultimately suggest that this approach to explaining the action of private equity investors has a broader use in rendering other financial capitalists ethnographically comparable to private equity investors, as well as in rendering other societal distributions of wealth and poverty comparable to that which exists in the contemporary United States.
Deformed graded Poisson structures, Generalized Geometry and Supergravity
Creators: name: Boffo, Eugenia
name: Schupp, Peter
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In recent years, a close connection between supergravity, string effective actions and generalized geometry has been discovered that typically involves a doubling of geometric structures. We investigate this relation from the point of view of graded geometry, introducing an approach based on deformations of graded Poisson structures and derive the corresponding gravity actions. We consider in particular natural deformations of the $2$-graded symplectic manifold $T^{*}[2]T[1]M$ that are based on a metric $g$, a closed Neveu-Schwarz $3$-form $H$ (locally expressed in terms of a Kalb-Ramond 2-form $B$) and a scalar dilaton $ϕ$. The derived bracket formalism relates this structure to the generalized differential geometry of a Courant algebroid, which has the appropriate stringy symmetries, and yields a connection with non-trivial curvature and torsion on the generalized "doubled" tangent bundle $E \cong TM \oplus T^{*}M$. Projecting onto $TM$ with the help of a natural non-isotropic splitting of $E$, we obtain a connection and curvature invariants that reproduce the NS-NS sector of supergravity in 10~dimensions. Further results include a fully generalized Dorfman bracket, a generalized Lie bracket and new formulas for torsion and curvature tensors associated to generalized tangent bundles. A byproduct is a unique Koszul-type formula for the torsionful connection naturally associated to a non-symmetric metric, which resolves ambiguity problems and inconsistencies of traditional approaches to non-symmetric gravity theories.
description: 30 pages, major revision, new results
null qualitative Analyse zur Kommunikation zwischen Hausarzt, Apotheker und chronisch krankem Patient mit Polypharmazie
Creators: name: Koudmani, Carolin
Publisher: name: Universität Rostock
Year: 2020
Subjects: subject: 610 Medical sciences Medicine

description: Die Zunahme von chronischen Erkrankungen und von Multimorbidität führt in vielen Fällen zu Polypharmazie. Auf der individuellen Ebene stellt Polypharmazie sowohl Patienten als auch Ärzte und Apotheker vor vielfältige Herausforderungen. Der Zusammenarbeit von Hausärzten und Apothekern kommt daher im Zuge eines immer weiter voranschreitenden demografischen und epidemiologischen Wandels eine immer größere Bedeutung zu. Aus der Literatur wissen wir, dass eine erfolgreiche Zusammenarbeit von Patienten, Apothekern und Hausärzten positive patientenrelevante Outcomes beeinflussen kann.
General Relativistic Energy Conditions: The Hubble expansion in the epoch of galaxy formation
Creators: name: Visser, Matt
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The energy conditions of Einstein gravity (classical general relativity) are designed to extract as much information as possible from classical general relativity without enforcing a particular equation of state for the stress-energy. This systematic avoidance of the need to specify a particular equation of state is particularly useful in a cosmological setting --- since the equation of state for the cosmological fluid in a Friedmann-Robertson-Walker type universe is extremely uncertain. I shall show that the energy conditions provide simple and robust bounds on the behaviour of both the density and look-back time as a function of red-shift. I shall show that current observations suggest that the so-called strong energy condition (SEC) is violated sometime between the epoch of galaxy formation and the present. This implies that no possible combination of ``normal'' matter is capable of fitting the observational data.
description: 25 pages; plain LaTeX; uses epsf.sty; three encapsulated postscript figures. A brief summary of these ideas was published in Science 276 (4 April 1997) 88--90
Facts on Bear Bile Use in Coronavirus Disease 2019 (COVID-19)
Creators: name: Lim, Xin Yi
name: Norfarahana Japri
name: Teh, Bee Ping
name: Puspawathy Krishnan
name: Shah, Raja Nazatul Izni Raja Shahriman
name: Rahim, Nur Salsabeela Mohd
name: Nurmaziah Mohammad Shafie
name: Tan, Terence Yew Chin
Publisher: name: Zenodo
Year: 2020
Subjects: Bear Bile
COVID-19
Coronavirus
Use

description: Introduction In Malaysia, approximately 69% of Traditional Chinese Medicine outlets were reported to be possibly selling bear parts and derivatives in 2018. In 2020, China’s National Health Commission issued a guideline outlining the use of an injection named “Tan Re Qing”, consisting of bear bile powder and other herbs, to treat critically ill SARS-CoV-2 infected patients, raising concerns on animal cruelty and increased illegal poaching. Objective To conduct a rapid review on the efficacy and safety of bear bile in COVID-19 treatment. Methods [Refer to Poster]. Results and Discussion [Refer to Poster]. Conclusion Although there is insufficient published clinical evidence on bear bile, safety of its main chemical compound UDCA is well established. Further research is required to determine its supportive role in COVID-19 treatment as preclinical evidence shows potential viral suppression and anti-inflammatory effects.
Requirement-driven Taxonomy Development – A Classification of Blockchain Technologies for Securities Post-Trading
Creators: name: Notheisen, Benedikt
name: Willrich, Sven
name: Diez, M.
name: Weinhardt, Christof
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2019
Subjects: Distributed Ledger Technology
The Blockchain
Internet and the Digital Economy
Blockchain
Securities post-trading
Taxonomy development
Requirements analysis

description: In recent years, blockchain and distributed ledger technology (DLT) and its disruptive potential has been one of the most discussed topics in the field of information systems. Driven by the prospect of cost savings and efficiency gains, financial markets are at the core of these discussions. However, in the increasingly convoluted and constantly evolving market of technology providers and platforms, organizations struggle to find a solution that fulfills the specific requirements of their application scenario. To evaluate the suitability of different blockchain-based platforms for securities post-trading, we develop a new methodology to create a technology classification that takes the demands of a specific application context into account. The resulting requirement-based taxonomy sheds light on factors that impede the adoption of blockchain- and DLT-based post-trading, highlights future research challenges, and offers a valuable tool to induce communication between involved stakeholders.
Fuzzy dynamic programming problem for single additive constraint with multiplicatively separable return in terms of trapezoidal membership functions
Creators: name: Kaliyaperumal Palanivel
name: Prakasam Muralikrishna
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: trapezoidal fuzzy numbers
fuzzy dynamic programming problem
fuzzy additive constraint
fuzzy multiplicatively separable return

description: Songklanakarin Journal of Science and Technology, 41, 4, 761-768
Pentas zanzibarica Vatke
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Pentas
Pentas zanzibarica

description: Pentas zanzibarica (Klotzsch) Vatke  —
Habit: Herb.
Habitat: LMDF; up to 2 600 m. Distribution: II.
 Voucher: Mount Kenya, Alt. 1 928 m, 24 Aug. 1957, Croockewit 390 (WAG).
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 74, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Tenthredo casta Konow 1908
Creators: name: Taeger, Andreas
name: París, Mercedes
name: Nieves-Aldrey, Jose Luis
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredo
Tenthredo casta

description: Tenthredo casta Konow, 1908
A valid species, Tenthredo (Olivacedo) casta Konow, 1908.
Types. Tenthredo casta Konow, 1908: 22–23. Syntypes ♂ ♀, “ Sikkim ”. Lectotype ♀, hereby designated, (MNCN_ Ent 82485, MNCN Cat. Tipos Nº 8127, Fig. 12, see also http://dx.doi.org/10.6084/m9.figshare.756022). Type locality: India, Sikkim.
Discussion. The other syntype (s) seem to be lost. In the SDEI only an original label attached to a pin could be found. Papers subsequent to the original description obviously always refer to the original description only. Saini (2007: 107) mentioned a ♀ holotype and a ♂ paratype in the SDEI (“IPAL, Eberswalde”). Such material does not exist. The species, hitherto unplaced within Tenthredo, belongs to the subgenus Olivacedo Zhelochovtsev, 1988.
description: Published as part of Taeger, Andreas, París, Mercedes & Nieves-Aldrey, Jose Luis, 2014, The type specimens of sawflies (Hymenoptera: Symphyta) of the Museo Nacional de Ciencias Naturales, Madrid, pp. 103-138 in Zootaxa 3790 (1) on page 112, DOI: 10.11646/zootaxa.3790.1.5, http://zenodo.org/record/4914035
Understanding initial data for black hole collisions
Creators: name: Lousto, Carlos O.
name: Price, Richard H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Numerical relativity, applied to collisions of black holes, starts with initial data for black holes already in each other's strong field. The initial hypersurface data typically used for computation is based on mathematical simplifying prescriptions, such as conformal flatness of the 3-geometry and longitudinality of the extrinsic curvature. In the case of head on collisions of equal mass holes, there is evidence that such prescriptions work reasonably well, but it is not clear why, or whether this success is more generally valid. Here we study these questions by considering the ``particle limit'' for head on collisions of nonspinning holes. Einstein's equations are linearized in the mass of the small hole, and described by a single gauge invariant spacetime function psi, for each multipole. The resulting equations have been solved by numerical evolution for collisions starting from various initial separations, and the evolution is studied on a sequence of hypersurfaces. In particular, we extract hypersurface data, that is psi and its time derivative, on surfaces of constant background Schwarzschild time. These evolved data can then be compared with ``prescribed'' data, evolved data can be replaced by prescribed data on any hypersurface, and evolved further forward in time, a gauge invariant measure of deviation from conformal flatness can be evaluated, etc. The main findings of this study are: (i) For holes of unequal mass the use of prescribed data on late hypersurfaces is not successful. (ii) The failure is likely due to the inability of the prescribed data to represent the near field of the smaller hole. (iii) The discrepancy in the extrinsic curvature is more important than in the 3-geometry. (iv) The use of the more general conformally flat longitudinal data does not notably improve this picture.
description: 20 pages, REVTEX, 26 PS figures included
Learning to Branch: Accelerating Resource Allocation in Wireless Networks
Creators: name: Lee, Mengyuan
name: Yu, Guanding
name: Li, Geoffrey Ye
Publisher: name: arXiv
Year: 2019
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Resource allocation in wireless networks, such as device-to-device (D2D) communications, is usually formulated as mixed integer nonlinear programming (MINLP) problems, which are generally NP-hard and difficult to get the optimal solutions. Traditional methods to solve these MINLP problems are all based on mathematical optimization techniques, such as the branch-and-bound (B&B) algorithm that converges slowly and has forbidding complexity for real-time implementation. Therefore, machine leaning (ML) has been used recently to address the MINLP problems in wireless communications. In this paper, we use imitation learning method to accelerate the B&B algorithm. With invariant problem-independent features and appropriate problem-dependent feature selection for D2D communications, a good auxiliary prune policy can be learned in a supervised manner to speed up the most time-consuming branch process of the B&B algorithm. Moreover, we develop a mixed training strategy to further reinforce the generalization ability and a deep neural network (DNN) with a novel loss function to achieve better dynamic control over optimality and computational complexity. Extensive simulation demonstrates that the proposed method can achieve good optimality and reduce computational complexity simultaneously.
description: to appear in IEEE Transactions on Vehicular Technology
Design of the Eldorado Gold Efemçukuru filtered tailings facility
Creators: name: Kwan, Karvin
name: Dawson, Richard
name: Boese, Calvin
name: Churcher, Dale
Publisher: name: The University of British Columbia
Year: 2011

description: Eldorado’s Efemçukuru Project incorporates the design of a filtered tailings facility to store 1 million cubic metres of dry stack filtered tailings in a high seismicity region of Western Turkey. Compared to conventional tailings technologies, dry stack filtered tailings have many advantages in terms of lowering long-term environmental liability/impacts (for example through decreased potential seepage, minimized storage footprints, and ease of progressive reclamation). An important design feature of this project is the incorporation of a fullylined base (HDPE/GCL double-liner) coupled with an underdrain system for seepage control at the base of the facility, as the tailings are potentially acid-generating. Increased structural integrity is achieved through compaction of tailings filter cake material in lifts, the construction of rock toe berms on the downstream side of the pile, and selection of a double-liner system that will provide sufficient frictional strength in this high seismic zone. The use of a filtered tailings and liner system in the Eldorado Gold Efemçukuru project provides added protection of groundwater resources and represents another step in tailings waste management and environmental stewardship in the industry.[All papers were considered for technical and language appropriateness by the organizing committee.]
MOESM1 of Heterologous synthesis of chlorophyll b in Nannochloropsis salina enhances growth and lipid production by increasing photosynthetic efficiency
Creators: name: Koh, Hyun
name: Kang, Nam
name: Seungjib Jeon
name: Shin, Sung-Eun
name: Byeong-Ryool Jeong
name: Chang, Yong
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Sequences of signal and transit peptides from GCSL in N. salina and coding sequence of CrCAO.
title: Über die Fortsetzbarkeit stetiger Funktionen mit kompaktem Definitionsbereich
Creators: name: Zobel, Robert
Publisher: name: Goltze
Year: 1977
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 510

description: In der Maßtheorie spielt beim Satz von Lusin die Frage eine Rolle, wann eine auf einer kompakten Teilmenge eines topologischen Raumes definierte, stetige Abbildung stetig auf den ganzen Raum fortsetzbar ist. Diese Frage wurde schon von Stone in seiner grundlegenden Arbeit behandelt. Stone stellt dabei das folgende fest: Eine stetige Abbildung von einer kompakten Teilmenge eines topologischen Raumes X in die reellen Zahlen ist genau dann fortsetzbar, wenn sie nur solche Punkte trennt, die bereits durch eine stetige Abbildung von X in die reellen Zahlen getrennt werden. Er beweist diesen Satz mit der von ihm in der gleichen Arbeit gegebenen Verallgemeinerung des Weierstrass'schen Approximationssatzes. In dieser Arbeit soll nun gefragt werden, welche topologischen Räume generell diese Fortsetzungseigenschaft haben. Es zeigt sich, daß dadurch ein Trennungsaxiom erhalten wird wie bei der entsprechenden Frage nach der Fortsetzbarkeit von abgeschlossenen Mengen. Der Beweis wird ohne den Approximationssatz geführt.
description: Topological spaces are studied fullfilling the following condition: Every real-valued, continuous function, defined on a compact subset, can be extended to the full space. A space X fulfills this condition if and only if all different points x,y E X such that {x,y} is a discrete subspace of X can be separated by a continuous, real-valued function. This condition is taken as a separation axiom T2b. The relation of T2b with other separation axioms and the condition "T2b and T1" are studied.
Sound and Precise Analysis of Multithreaded  Programs through Schedule Specialization and  Execution Filters
Creators: Wu, Jingyue
Publisher: name: Columbia University
Year: 2014
Subjects: Computer science

description: Multithreaded programs are known to be difficult to analyze. A key reason is that they typically have an enormous number of execution interleavings, or schedules. Static analysis with respect to all schedules requires over-approximation, resulting in poor precision; dynamic analysis rarely covers more than a tiny fraction of all schedules, so its result may not hold for schedules not covered.
      To address this challenge, we propose a novel approach called schedule specialization that restricts the schedules of a program to make it easier to analyze. Schedule specialization combines static and dynamic analysis. It first statically analyzes a multithreaded program with respect to a small set of schedules for precision, and then enforces these schedules at runtime for soundness of the static analysis results.
      To demonstrate that this approach works, we build three systems. The first system is a specialization framework that specializes a program into a simpler program based on a schedule for precision. It allows stock analyses to automatically gain precision with only little modification.
      The second system is Peregrine, a deterministic multithreading system that collects and enforces schedules on future inputs. Peregrine reuses a small set of schedules on many inputs, ensuring our static analysis results to be sound for a wide range of inputs. It also enforces these schedules efficiently, making schedule specialization suitable for production usage.
      Although schedule specialization can make static concurrency error detection more precise, some concurrency errors such as races may still slip detection and enter production systems. To mitigate this limitation, we build Loom, a live-workaround system that protects a live multithreaded program from races that slip detection. It allows developers to easily write execution filters to safely and efficiently work around deployed races in live multithreaded programs without restarting them.
Phase instabilities in hexagonal patterns
Creators: name: Echebarria, B.
name: Perez-Garcia, C.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: The general form of the amplitude equations for a hexagonal pattern including spatial terms is discussed. At the lowest order we obtain the phase equation for such patterns. The general expression of the diffusion coefficients is given and the contributions of the new spatial terms are analysed in this paper. From these coefficients the phase stability regions in a hexagonal pattern are determined. In the case of Benard-Marangoni instability our results agree qualitatively with numerical simulations performed recently.
description: 6 pages, 6 figures, to appear in Europhys. Lett
Malaysian Public Perception on MCO Instructions During COVID-19 Pandemic: An Online Survey
Creators: name: Sheikh Shafizal Sheikh Ilman
name: Zakaria, Muhammad Ridzwan
name: Zaikiah Mohd Zin
name: Zulkepli, Mohamad Zaidan
name: Norrafizah Jaafar
Publisher: name: Zenodo
Year: 2020
Subjects: Malaysian
Public
Perception
Movement Control Order
MCO
COVID-19
Pandemic
Survey

description: Introduction The Malaysian Government imposed the Movement Control Order (MCO) to mitigate the COVID-19 pandemic. Public were urged to comply with the instructions. This study aimed to better understand factors of adherence towards these measures: 1) Stay at home, 2) Remain wherever you are and 3) Only 1 person per family is allowed to go out to buy groceries. Methods [Refer to Poster]. Results [Refer to Poster]. Conclusion Malaysian public are seen agreeable to the instructions but future studies need to identify the level of compliance to mitigate the COVID-19 outbreak.
Observation of Ds+ K- and evidence for Ds+ pi- final states in neutral B decays
Creators: name: Krokovny, P.
name: Collaboration, The Belle
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B0bar -> Ds+ K- is found in a sample of 85 timse 10^6 B Bbar events, collected with the Belle detector at KEKB, with a branching fraction Br(B0bar -> Ds+ K-)=(4.6^{+1.2}_{-1.1} +- 1.3) times 10^{-5}. We also obtain evidence for the B0 -> Ds+ pi- decay with branching fraction Br(B0 -> Ds+ pi-)=(2.4^{+1.0}_{-0.8} +- 0.7) times 10^{-5}. This value may be used to extract a model-dependent value of |Vub|.
description: Accepted to publication in Phys. Rev. Lett
Sound in the Construction of Race: From Blackface to Blacksound in Nineteenth-Century America
Creators: Morrison, Matthew D.
Publisher: name: Columbia University
Year: 2014
Subjects: Race awareness
Minstrel music
Music
Americans
African Americans

description: This dissertation examines sound, and its embodied articulation through music and movement, as I consider pivotal ways in which race has been constructed through the history of blackface minstrelsy in the United States. I contend that the racialized sounds developed out of early blackface performance have both persisted and shifted throughout the history of American popular music, even after the disappearance of the blackface mask. I have neologized the concept of Blacksound to denote the racially coded sonic scripts that have developed out of the history of blackface performance. Blacksound refers to the histories and movements of the African American bodies, both real and imagined, on which its performance is based. The concept also suggests the scripting, manipulation, and absorption of these sonic performances by both black and non-black bodies as vehicles for imagining and self-expression, understood in relation to how ideals of citizenship vis-a-vis whiteness developed along the emerging color line throughout the long nineteenth century. Because Blacksound emerges out of the contexts of chattel slavery and minstrelsy, its commodified nature is always central to understanding how it sonically functions within the construction of identity in U.S. history. I examine how the masked receding of the sonic and corporeal tropes of blackface into Blacksound became the basis of contemporary popular sound and central to constructions of civic and racial identity in the United States. This approach is primarily developed through a comparative analysis of sheet music, imagery, and primary and secondary accounts of blackface performance rituals throughout the long nineteenth century.
title: Zur Berechnung der Hauptkrümmungen und Hauptkrümmungsrichtungen bei empirisch vorgegebenen Flächenstücken
Creators: name: Hoschek, Josef
Publisher: name: Goltze
Year: 1977
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 510

description: Bei der Untersuchung der Gestalt von Teilen des menschlichen Körpers können die betrachteten Körperteile über ein projiziertes Raster mit Hilfe der Nahbereichsphotogrammetrie optisch vermessen werden. Von den dann durch Punkte Pi empirisch festgelegten Flächenstücken [Phi]e interessieren z.B. bei Anwendungen in der kosmetischen Industrie in den Punkten Pi die extremalen Flächenkrümmungen sowie die Richtungen, in denen diese extremalen Flächenkrümmungen in den Punkten Pi des Flächenstückes [Phi]e auftreten. In den Sprachgebrauch der Differentialgeometrie übertragen, bedeutet dies das Aufsuchen der Hauptkrümmungen und des Richtungsfeldes der Krümmungslinien in den Punkten Pi des empirisch vorgegebenen Flächenstückes [Phi]e. Obwohl im Rahmen der Untersuchungen zur zeichnerischen Darstellung von Flächen (Computer-Design) und im Rahmen der Spline-Approximation von Flächen eine umfangreiche Literatur vorliegt, scheint die obengenannte Problemstellung noch nicht diskutiert worden zu sein. In der vorliegenden Untersuchung soll daher eine Methode zur numerischen Berechnung der Hauptkrümmungen und des Richtungsfeldes der Krümmungslinien in den Punkten Pi eines empirisch vorgegebenen Flächenstückes [Phi]e entwickelt werden.
Methodisch werden dabei differentialgeometrische Betrachtungen mit Verfahren aus der Ausgleichsrechnung verknüpft werden. Überlegungen aus der Statistik liefern dann eine Fehlerabschätzung der gefundenen Resultate. Anwendungen auf bekannte Flächenstücke zeigen abschließend die Wirksamkeit der entwickelten Methoden auf.
Sound Advice: The Development and Use of Early 20th Century Acoustical Wall and Ceiling Materials
Creators: Yu, Dona
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Architecture
subject: FOS: Civil engineering
subject: Acoustical materials
subject: Building materials

description: Acoustical materials are found in many early twentieth century public and other buildings where sound quality was important. Why were these materials developed and by whom? How do we recognize these materials? The purpose of this thesis is to examine the development of early acoustical materials from approximately 1890 to 1940, with a particular focus on acoustical plaster. The specific details of the type and technology of these materials have not been widely addressed. This research draws upon mostly the limited literature on the history of architectural acoustics, trade catalogs, architectural journals, and other resources available through Columbia University.
Acoustical materials were needed because the new types of spaces that were built in the nineteenth century had faulty acoustics. People complained that they could not hear the speaker or the music well in places like theaters, auditoriums, or churches due to reverberation. Thus, acoustical materials were introduced as a means to correct sound problems. The goal of this thesis is to have a greater understanding of the technology and impact of these materials on the built environment, in addition to creating another source on the history of acoustical materials.
Coarse dimension and definable sets in expansions of the ordered real vector space
Creators: name: Walsberg, Erik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: Suppose $E \subseteq \mathbb{R}$ is nowhere dense. If $(\mathbb{R}, 0$ we have $$ | \{ k \in \mathbb{Z}, -m \leq k \leq m - 1 : [k,k+1] \cap E \neq \emptyset \} | < m^s $$ for sufficiently large $m \in \mathbb{N}$. Then there is an $n \in \mathbb{N}$ and a linear $T : \mathbb{R}^n \to \mathbb{R}$ such that $T(E^n)$ is dense. It follows that if $E$ is in addition nowhere dense then $(\mathbb{R},
description: New version, accepted by Illinois J. Math
Application of high-resolution microscopy methods to the analysis of fine-grained and amorphous treatment sludges
Creators: name: Martin, Alan J.
name: Fawcett, Skya
name: Kulczycki, Ezra
name: Loomer, Diana
name: Al, Tom
name: Rollo, Andrew
Publisher: name: The University of British Columbia
Year: 2011

description: Lime addition is a common method for the treatment of acid mine drainage (AMD) whereby neutralization promotes a reduction in acidity and the precipitation of metals as voluminous sludges that may contain gypsum, calcite and a spectrum of other phases. Due to the extremely fine-grained and often amorphous (i.e., non crystalline) character of sludge solids, the composition of these materials has been difficult to elucidate. Traditional methods, such as X-Ray Diffraction (XRD) and optical microscopy, have proved largely ineffective. In order to provide further insight into the solid-phase characterization of neutralization sludges, samples from mine sites across Canada were examined by high resolution microscopy techniques, including Scanning Electron Microscopy (SEM), Scanning Transmission Electron Microscopy (STEM), and X-ray Absorption Spectroscopy (XAS). The results revealed sludge-specific host phases, including relatively pure Feoxyhydroxide, amorphous Mg-Al-(Fe) hydroxysulphate and amorphous metal hydroxides. The data indicate that the nature of metal phase associations is strongly dependent on AMD influent composition.[All papers were considered for technical and language appropriateness by the organizing committee.]
Psychotria capensis subsp. riparia Verdc.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Gentianales
Rubiaceae
Psychotria
Psychotria capensis
Psychotria capensis (eckl.) vatke subsp. riparia (k.schum. & k.krause) verdc.

description: Psychotria capensis (Eckl.) Vatke subsp. riparia (K.Schum. & K.Krause) Verdc.  —
Habit: Small tree.
Habitat: LMDF; up to 2 300 m. Distribution: II.
Voucher: N/A.
Reference: Fries & Fries (1929).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 74, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
title: Sonnenenergie-Kraftwerke mit Gasturbinen
Creators: name: Bammert, Karl
Publisher: name: Goltze
Year: 1977
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Abhandlungen der BWG
subject: 62

description: Die speziellen Eigenschaften der geschlossenen Gasturbine qualifizieren sie für eine große Zahl unterschiedlicher Anwendungsfälle. Arbeitsmittel, eingesetzte Primärenergie und Standort sind frei wählbar. Mit entsprechender Auslegung kann sie in einem Leistungsbereich von 500 kW bis zu 1000 MW und mehr mit hohen Wirkungsgraden eingesetzt werden. Sie ist besonders für die solare Stromerzeugung geeignet, zumal wegen der leicht realisierbaren Trockenkühlung auf Kühlwasser verzichtet werden kann. Im Gegensatz zu Dampfturbinen besitzen Gasturbinen große Entwicklungspotentiale, da mit fortschreitender Werkstofftechnologie immer höhere Turbineneintrittstemperaturen und damit höhere Anlagenwirkungsgrade erreicht werden können.
description: Because of its characteristics the closed-cycle gas turbine is suitable for a variety of applications. There is a free choice as to working medium, primary energy and location of the plant. With an appropriate layout it can be used with good efficiency in a capacity range of between 500 kW and 1000 MW and above. This means that it is ideal for use in solar energy plants, particularly in view of the fact that cooling water can be dispensed with because dry cooling is easily realisable. Furthermore there is an enormous development potential of the gas turbine as compared with steam turbine plants, since with progressive materials higher turbine inlet temperatures and thus higher plant efficiences can be achieved.
A combinatorial characterization of second category subsets of X^ω
Creators: name: Tyszka, Apoloniusz
Publisher: name: arXiv
Year: 1999
Subjects: subject: Logic (math.LO)
subject: Mathematical Physics (math-ph)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 03E05 (Primary), 54E52 (Primary)

description: Let a finite non-empty X is equipped with discrete topology. We prove that S \subseteq X^ωis of second category if and only if for each f:ω-> \bigcup_{n \in ω} X^n there exists a sequence {a_n}_{n \in ω} belonging to S such that for infinitely many i \in ωthe infinite sequence {a_{i+n}}_{n \in ω} extends the finite sequence f(i).
description: with a counterexample by T. Bartoszynski, to appear in J. Nat. Geom