cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A note on irreducible quadrilaterals of $II_1$ factors
Creators: name: Bakshi, Keshab Chandra
name: Gupta, Ved Prakash
Publisher: name: arXiv
Year: 2019
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L37

description: Given any finite index quadrilateral $(N, P, Q, M)$ of $II_1$-factors, the notions of interior and exterior angles between $P$ and $Q$ were introduced in \cite{BDLR2017}. We determine the possible values of these angles when the quadrilateral is irreducible and the subfactors $N \subset P$ and $N \subset Q$ are both regular in terms of the cardinalities of the Weyl groups of the intermediate subfactors. For a more general quadruple, an attempt is made to determine the values of angles by deriving expressions for the angles in terms of the common norm of two naturally arising auxiliary operators and the indices of the intermediate subfactors of the quadruple. Finally, certain bounds on angles between $P$ and $Q$ are obtained, which enforce some restrictions on the index of $N \subset Q$ in terms of that of $N \subset P$.
description: Some typos in Proposition 2.7 have been fixed
Physcia stellaris Nyl.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Caryophyllales
Physciaceae
Physcia
Physcia stellaris

description: Lichen stellaris Linnaeus, Species Plantarum 2: 1144. 1753.
"Habitat in Europae ramis arborum. arboreus." RCN: 8192.
 Lectotype (Howe in Bull. Torrey Bot. Club 39: 201. 1912; Jørgensen & al. in Bot. J. Linn. Soc. 115: 356, f. 59. 1994): Herb. Linn. No. 1273.81, upper left specimen (LINN).
 Current name: Physcia stellaris (L.) Nyl. (Physciaceae).
 Note: Jørgensen & al. (in Bot. J. Linn. Soc. 115: 356, 381, f. 59. 1994) restricted Howe’s original type choice to one of the specimens on the sheet.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 630, DOI: 10.5281/zenodo.291971
Continuous bunch-by-bunch spectroscopic investigation of the micro-bunching instability
Creators: name: Steinmann, Johannes L.
name: Boltz, Tobias
name: Brosi, Miriam
name: Bründermann, Erik
name: Caselle, Michele
name: Kehrer, Benjamin
name: Rota, Lorenzo
name: Schönfeldt, Patrik
name: Schuh, Marcel
name: Siegel, Michael
name: Weber, Marc
name: Müller, Anke-Susanne
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Electron accelerators and synchrotrons can be operated to provide short emission pulses due to longitudinally compressed or sub-structured electron bunches. Above a threshold current, the high charge density leads to the micro-bunching instability and the formation of sub-structures on the bunch shape. These time-varying sub-structures on bunches of picoseconds-long duration lead to bursts of coherent synchrotron radiation in the terahertz frequency range. Therefore, the spectral information in this range contains valuable information about the bunch length, shape and sub-structures. Based on the KAPTURE readout system, a 4-channel single-shot THz spectrometer capable of recording 500 million spectra per second and streaming readout is presented. First measurements of time-resolved spectra are compared to simulation results of the Inovesa Vlasov-Fokker-Planck solver. The presented results lead to a better understanding of the bursting dynamics especially above the micro-bunching instability threshold.
description: 12 pages, 11 figures
Anti-Leishmania and cytotoxic activities of perillaldehyde epoxide synthetic positional isomers
Creators: name: Keesen, Tatjana Souza Lima
name: Larisse Virgolino Da Silva
name: Rocha, Juliana Da Câmara
name: Andrade, Luciana Nalone
name: Tamires Cardoso Lima
name: Damião Pergentino De Sousa
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Computational Biology

description: Leishmaniasis belongs to a complex of zoonotic disease caused by protozoa of the genus Leishmania and is considered a major public health problem. Several essential oil chemical components have inhibitory effect against protozoa, including Leishmania donovani. Thus, the aim of this study was to evaluate for the first time the anti-Leishmania activity of two p-menthane monoterpene isomers (EPER-1: perillaldehyde 1,2-epoxide and EPER-2: perillaldehyde 8,9-epoxide) against L. donovani promastigotes as well as evaluating cytotoxic effect on mononuclear peripheral blood cells. Results of anti-Leishmania assay revealed that EPER-2 (IC50 = 3.8 μg.mL−1) was 16-fold more potent than its isomer EPER-1 (IC50 = 64.6 μg.mL−1). In contrast to PBMC cells, EPER-2 was not cytotoxic (IC50 > 400 μg.mL−1) when compared to positive control. These data suggest that the disposition of epoxide group into the p-menthane skeleton affects the anti-Leishmania activity, being that the presence of the exocyclic epoxide group considerably increased potency. Thus, it was possible to observe that the location of the epoxide group into the p-menthane skeleton resulted in different potencies.
On the Protection of Private Information in Machine Learning Systems: Two Recent Approaches
Creators: name: Abadi, Martín
name: Erlingsson, Úlfar
name: Goodfellow, Ian
name: McMahan, H. Brendan
name: Mironov, Ilya
name: Papernot, Nicolas
name: Talwar, Kunal
name: Zhang, Li
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The recent, remarkable growth of machine learning has led to intense interest in the privacy of the data on which machine learning relies, and to new techniques for preserving privacy. However, older ideas about privacy may well remain valid and useful. This note reviews two recent works on privacy in the light of the wisdom of some of the early literature, in particular the principles distilled by Saltzer and Schroeder in the 1970s.
Splitting groups with cubic Cayley graphs of connectivity two
Creators: name: Miraftab, Babak
name: Stavropoulos, Konstantinos
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 05C63, 20E06, 20E08

description: A group $G$ splits over a subgroup $C$ if $G$ is either a free product with amalgamation $A \underset{C}{\ast} B$ or an HNN-extension $G=A \underset{C}{\ast} (t)$. We invoke Bass-Serre theory and classify all infinite groups which admit cubic Cayley graphs of connectivity two in terms of splittings over a subgroup.
description: The last version of the paper has been replaced
Bioactive sesquiterpenoids and steroids from the resinous exudates of Commiphora myrrha
Creators: name: Ge, Chi-Yu
name: Zhang, Jun-Li
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy
subject: Hematology

description: Chemical investigation of the resinous exudates of Commiphora myrrha has led to the isolation of four sesquiterpenes (1a/1b, 2, and 3), including one pair of new sesquiterpene enantiomers (1a/1b), one new racemic mixture 2, and two steroids (4 and 5). Their structures were elucidated by spectroscopic analysis, and the absolute configurations of 1a/1b were determined by CD analysis. The antimigratory potential of compounds 1–5 were evaluated and compound 3 was found to inhibit human hepatocellular liver carcinoma HepG2 cell migration in dose-dependent manner.
The $A_{inf}$-cohomology in the semistable case
Creators: name: Cesnavicius, Kestutis
name: Koshikawa, Teruhisa
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: Primary 14G20, Secondary 14G22, 14F20, 14F30, 14F40

description: For a proper, smooth scheme $X$ over a $p$-adic field $K$, we show that any proper, flat, semistable $\mathcal{O}_K$-model $\mathcal{X}$ of $X$ whose logarithmic de Rham cohomology is torsion free determines the same $\mathcal{O}_K$-lattice inside $H^i_{dR}(X/K)$ and, moreover, that this lattice is functorial in $X$. For this, we extend the results of Bhatt--Morrow--Scholze on the construction and the analysis of an $A_{inf}$-valued cohomology theory of $p$-adic formal, proper, smooth $\mathcal{O}_{\overline{K}}$-schemes $\mathfrak{X}$ to the semistable case. The relation of the $A_{inf}$-cohomology to the $p$-adic étale and the logarithmic crystalline cohomologies allows us to reprove the semistable conjecture of Fontaine--Jannsen.
description: 78 pages; final version, to appear in Compositio Mathematica
Melanelia stygia Essl.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Ascomycetes
Lecanorales
Parmeliaceae
Melanelia
Melanelia stygia

description: Lichen stygius Linnaeus, Species Plantarum 2: 1143. 1753.
"Habitat in Suecia, imprimis in Insula Balthici Blåkulla. rupestris." RCN: 8187.
 Neotype (Jørgensen & al. in Bot. J. Linn. Soc. 115: 356, 381. 1994): Sweden. Uppland, Värmdö, Hasseludden, Aug 1907, G.O.A. Malme (Malme Lich. Suec. Exs. 66) (UPS).
 Current name: Melanelia stygia (L.) Essl. (Parmeliaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 630, DOI: 10.5281/zenodo.291971
A spectral decomposition of the attractor of piecewise contracting maps of the interval
Creators: name: Calderón, A.
name: Catsigeras, E.
name: Guiraud, P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37E05, 54H20, 37B20, 37C70

description: We study the asymptotic dynamics of piecewise contracting maps defined on a compact interval. For maps that are not necessarily injective, but have a finite number of local extrema and discontinuity points, we prove the existence of a decomposition of the support of the asymptotic dynamics into a finite number of minimal components. Each component is either a periodic orbit or a minimal Cantor set and such that the $ω$-limit set of (almost) every point in the interval is exactly one of these components. Moreover, we show that each component is the $ω$-limit set, or the closure of the orbit, of a one-sided limit of the map at a discontinuity point or at a local extremum.
Nonadiabatic contributions to Bragg-regime dynamics in atomic Kapitza-Dirac scattering
Creators: name: Manna, Dylan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Atomic Kapitza-Dirac Bragg regime scattering is a multiphoton process in which a neutral atom undergoes a change of momentum through an interaction with a coherent light source. When the Bragg conditions are met, the outgoing atom beams are spatially quantized. Counterpropagating lasers act as pump and probe scattering from far-off-resonant excited intermediate electronic states, leaving the atoms in the electronic ground state with quantized transverse momentum. Each nontrivial scattering event imparts transverse velocity and therefore kinetic energy to the deflected atoms through recoil. In the Bragg regime, the loss of energy in the light fields is equal to the gain of kinetic energy in the atom. Energy nonconserving intermediate states, which are described by nonadiabatic contributions, are not accounted for by first-order off-resonant states. By comparing the solutions of increasing orders of off-resonant intermediate states, it becomes clear that calculating the correct Pendellösung frequencies and phases requires including an ever increasing number of off-resonant states in proportion to the square root of the field strength.
description: 9 pages, 9 figures, 40 citations
Free differential Galois groups
Creators: name: Bachmayr, Annette
name: Harbater, David
name: Hartmann, Julia
name: Wibmer, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 12H05, 12F12, 34M50

description: We study the structure of the absolute differential Galois group of a rational function field over an algebraically closed field of characteristic zero. In particular, we relate the behavior of differential embedding problems to the condition that the absolute differential Galois group is free as a proalgebraic group. Building on this, we prove Matzat's freeness conjecture in the case that the field of constants is algebraically closed of countably infinite transcendence degree over the rationals. This is the first known case of the twenty year old conjecture.
description: 16 pages. Version of Oct. 20, 2020. Expanded the discussion after Definition 2.4; added an assumption on not being finite type after the proof of Lemma 3.2
Quasinormal modes of dS and AdS Black Holes: Feedforward neural network method
Creators: name: Övgün, Ali
name: Sakallı, İzzet
name: Mutuk, Halil
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we show how the quasinormal modes (QNMs) arise from the perturbations of massive scalar fields propagating in the curved background by using the artificial neural networks. To this end, we architect a special algorithm for the feedforward neural network method (FNNM) to compute the QNMs complying with the certain types of boundary conditions. To test the reliability of the method, we consider two black hole spacetimes whose QNMs are well-known: $4D$ pure de Sitter (dS) and five-dimensional Schwarzschild anti-de Sitter (AdS) black holes. Using the FNNM, the QNMs of are computed numerically. It is shown that the obtained QNMs via the FNNM are in good agreement with their former QNM results resulting from the other methods. Therefore, our method of finding the QNMs can be used for other curved spacetimes that obey the same boundary conditions.
description: Accepted for Publication in IJGMMP
Ochrolechia tartarea A. Massal.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Ascomycetes
Pertusariales
Pertusariaceae
Ochrolechia
Ochrolechia tartarea

description: Lichen tartareus Linnaeus, Species Plantarum 2: 1141. 1753, nom. cons.
"Habitat in Europa ad parietes rupium." RCN: 8177.
 Conserved type (Jørgensen & al. in Taxon 43: 653. 1994): Burgess, Herb. Linn. No. 1273.31 (LINN).
 Current name: Ochrolechia tartarea (L.) A. Massal. (Pertusariaceae).
 Note: See extensive discussion by Jørgensen & al. (in Bot. J. Linn. Soc. 115: 358, 382. 1994) in which they chose the Dillenius element as lectotype. Neither it, nor any of the other available elements, corresponded with usage and they successfully proposed the name for conservation with a conserved type.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 631, DOI: 10.5281/zenodo.291971
Isolation and identification of new anthraquinones from Rhamnus alaternus L and evaluation of their free radical scavenging activity
Creators: name: Rebai Ben Ammar
name: Tomofumi Miyamoto
name: Chekir-Ghedira, Leila
name: Ghedira, Kamel
name: Marie-Aleth Lacaille-Dubois
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: From the butanolic and the ethyl acetate extracts of Rhamnus alaternus L root bark and leaves, three new anthraquinone glycosides, alaternosides A-C (1,4,6,8 tetrahydroxy-3 methyl anthraquinone 1-O-ß-D-glucopyranosyl-4,6-di-O-α-L-rhamnopyranoside (1); 1,2,6,8 tetrahydroxy-3 methyl anthraquinone 8-O-ß-D-glucopyranoside (2) and 1, 6 dihydroxy-3 methyl 6 [2′-Me (heptoxy)] anthraquinone (3)) were isolated and elucidated together with the two known anthraquinone glycosides, Physcion-8-O-rutinoside (4) and emodin-6-O-α-L-rhamnoside (5) as well as with the known kaempferol-7-methylether (6), β-sitosterol (7) and β-sitosterol-3-O-glycoside (8). Their chemical structures were elucidated using spectroscopic methods (1D-, 2D-NMR and FAB-MS). Free radical scavenging activity of the isolated compounds was evaluated by their ability to scavenge DPPH. free radicals. Compounds (3), (4) and (6) showed the highest activity with IC50 values of 9.46, 27.68 and 2.35 μg/mL, respectively.
$C_T$ for conformal higher spin fields from partition function on conically deformed sphere
Creators: name: Beccaria, Matteo
name: Tseytlin, Arkady A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the one-parameter generalization $S^4_q$ of 4-sphere with a conical singularity due to identification $τ=τ+ 2 πq$ in one isometric angle. We compute the value of the spectral zeta-function at zero $z(q) = ζ(0, q)$ that controls the coefficient of the logarithmic UV divergence of the one-loop partition function on $S^4_q$. While the value of the conformal anomaly a-coefficient is proportional to $z(1)$, we argue that in general the second $c = C_T$ anomaly coefficient is related to a particular combination of the second and first derivatives of $z(q) $ at $q=1$. The universality of this relation for $C_T$ is supported also by examples in 6 and 2 dimensions. We use it to compute the c-coefficient for conformal higher spins finding that it coincides with the "$r=-1$" value of the one-parameter Ansatz suggested in arXiv:1309.0785. Like the sums of $a_s$ and $c_s$ coefficients, the regularized sum of $z_s(q)$ over the whole tower of conformal higher spins $s=1,2, ...$ is found to vanish, implying UV finiteness on $S^4_q$ and thus also the vanishing of the associated Re'nyi entropy. Similar conclusions are found to apply to the standard 2-derivative massless higher spin tower. We also present an independent computation of the full set of conformal anomaly coefficients of the 6d Weyl graviton theory defined by a particular combination of the three 6d Weyl invariants that has a (2,0) supersymmetric extension.
description: 29 pages. v2: minor changes
Plane Sweep Algorithms for Data Collection in Wireless Sensor Network using Mobile Sink
Creators: name: Dash, Dinesh
Publisher: name: arXiv
Year: 2019
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Computational Geometry (cs.CG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Usage of mobile sink(s) for data gathering in wireless sensor networks(WSNs) improves the performance of WSNs in many respects such as power consumption, lifetime, etc. In some applications, the mobile sink $MS$ travels along a predefined path to collect data from the nearby sensors, which are referred as sub-sinks. Due to the slow speed of the $MS$, the data delivery latency is high. However, optimizing the {\em data gathering schedule}, i.e. optimizing the transmission schedule of the sub-sinks to the $MS$ and the movement speed of the $MS$ can reduce data gathering latency. We formulate two novel optimization problems for data gathering in minimum time. The first problem determines an optimal data gathering schedule of the $MS$ by controlling the data transmission schedule and the speed of the $MS$, where the data availabilities of the sub-sinks are given. The second problem generalizes the first, where the data availabilities of the sub-sinks are unknown. Plane sweep algorithms are proposed for finding optimal data gathering schedule and data availabilities of the sub-sinks. The performances of the proposed algorithms are evaluated through simulations. The simulation results reveal that the optimal distribution of data among the sub-sinks together with optimal data gathering schedule improves the data gathering time.
description: 13 pages, 13 figures
Mid-Infrared Polarization of Herbig Ae/Be Discs
Creators: name: Li, Dan
name: Telesco, Charles M.
name: Zhang, Han
name: Wright, Christopher M.
name: Pantin, Eric
name: Barnes, Peter J.
name: Packham, Chris
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We measured mid-infrared polarization of protoplanetary discs to gain new insight into their magnetic fields. Using CanariCam at the 10.4 m Gran Telescopio Canarias, we detected linear polarization at 8.7, 10.3, and 12.5 $μ$m from discs around eight Herbig Ae/Be stars and one T-Tauri star. We analyzed polarimetric properties of each object to find out the most likely interpretation of the data. While the observed mid-infrared polarization from most objects is consistent with polarized emission and/or absorption arising from aligned dust particles, we cannot rule out polarization due to dust scattering for a few objects in our sample. For those objects for which polarization can be explained by polarized emission and/or absorption, we examined how the derived magnetic field structure correlates with the disc position angle and inclination. We found no preference for a certain type of magnetic field. Instead, various configurations (toroidal, poloidal, or complex) are inferred from the observations. The detection rate (64 per cent) of polarized mid-infrared emission and/or absorption supports the expectation that magnetic fields and suitable conditions for grain alignment are common in protoplanetary discs around Herbig Ae/Be stars.
description: 14 pages, 4 figures; accepted for publication in MNRAS
The Advocacy Planning and the Civil Rights Movement in the United States: The Architects’ Renewal Committee and the Democratization of Urban Planning
Creators: name: Charitonidou, Marianna
Publisher: name: ETH Zurich
Year: 2021

description: This paper takes as its point of departure advocacy planning approaches’ consideration that urban renewal is incompatible with any kind of socially effective urban planning. It focuses on analysing the Architects’ Renewal Committee in Harlem (ARCH), the first organisation solely devoted to advocacy planning in the United States, and places particular emphasis on the critiques of urban renewal strategies in the late 1960s in the North-Eastern American context, and on the emergence of groups that aimed to struggle for the civil rights of African Americans. It closely examines how the Architects’ Renewal Committee in Harlem (ARCH) provided technical and design advice to communities who could otherwise not afford it, aspiring to democratize urban planning. It pays special attention to the analysis of ARCH’s program entitled “Architecture in the Neighborhoods” (1970), which aimed to recruit local black youth to become architects. In parallel, the paper compares the strategies of the Architects’ Renewal Committee in Harlem (ARCH) with those of other groups struggling over the rights of minorities and the democratization of urban planning, such as The Architects’ Resistance (TAR), and National Organization of Minority Architecture Students (NOMAS). The Architects’ Resistance (TAR) was a group formed in 1968 by architecture students from Columbia GSAPP, MIT Department of Architecture, and Yale School of Architecture and was “concerned about the social responsibility of architects and the framework within which architecture is practiced.” The National Organization of Minority Architecture Students (NOMAS) played a major role in the struggle over civil rights for African Americans in the United States. It was founded by a group of African-American architects in Detroit, Michigan in 1971 during the AIA National Convention and aimed to defend the rights of minority design professionals. The paper presents how the above-mentioned groups aimed to reshape urban planning models in order to respond to the call for a more democratic society. It sheds light on how they reinvented the relationship between architecture and democracy.
Agglomerative Likelihood Clustering
Creators: name: Yelibi, Lionel
name: Gebbie, Tim
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Finance (q-fin.CP)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We consider the problem of fast time-series data clustering. Building on previous work modeling the correlation-based Hamiltonian of spin variables we present an updated fast non-expensive Agglomerative Likelihood Clustering algorithm (ALC). The method replaces the optimized genetic algorithm based approach (f-SPC) with an agglomerative recursive merging framework inspired by previous work in Econophysics and Community Detection. The method is tested on noisy synthetic correlated time-series data-sets with built-in cluster structure to demonstrate that the algorithm produces meaningful non-trivial results. We apply it to time-series data-sets as large as 20,000 assets and we argue that ALC can reduce compute time costs and resource usage cost for large scale clustering for time-series applications while being serialized, and hence has no obvious parallelization requirement. The algorithm can be an effective choice for state-detection for online learning in a fast non-linear data environment because the algorithm requires no prior information about the number of clusters.
description: 15 pages, 8 figures
A New Deterministic Technique for Symbolic Regression
Creators: name: Rivero, Daniel
name: Fernandez-Blanco, Enrique
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: This paper describes a new method for Symbolic Regression that allows to find mathematical expressions from a dataset. This method has a strong mathematical basis. As opposed to other methods such as Genetic Programming, this method is deterministic, and does not involve the creation of a population of initial solutions. Instead of it, a simple expression is being grown until it fits the data. The experiments performed show that the results are as good as other Machine Learning methods, in a very low computational time. Another advantage of this technique is that the complexity of the expressions can be limited, so the system can return mathematical expressions that can be easily analysed by the user, in opposition to other techniques like GSGP.
description: 29 pages. Work in progress
Evaluating outcomes of computer-based classroom testing: Student acceptance and impact on learning and exam performance
Creators: name: Meixun Zheng
name: Bender, Daniel
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Computer-based testing (CBT) has made progress in health sciences education. In 2015, the authors led implementation of a CBT system (ExamSoft) at a dental school in the U.S. Guided by the Technology Acceptance Model (TAM), the purposes of this study were to (a) examine dental students’ acceptance of ExamSoft; (b) understand factors impacting acceptance; and (c) evaluate the impact of ExamSoft on students’ learning and exam performance. Survey and focus group data revealed that ExamSoft was well accepted by students as a testing tool and acknowledged by most for its potential to support learning. Regression analyses showed that perceived ease of use and perceived usefulness of ExamSoft significantly predicted student acceptance. Prior CBT experience and computer skills did not significantly predict acceptance of ExamSoft. Students reported that ExamSoft promoted learning in the first program year, primarily through timely and rich feedback on examination performance. t-Tests yielded mixed results on whether students performed better on computerized or paper examinations. The study contributes to the literature on CBT and the application of the TAM model in health sciences education. Findings also suggest ways in which health sciences institutions can implement CBT to maximize its potential as an assessment and learning tool.
Single-pass STEM-EMCD on a zone axis using a patterned aperture: progress in experimental and data treatment methods
Creators: name: Thersleff, Thomas
name: Schönström, Linus
name: Tai, Cheuk-Wai
name: Adam, Roman
name: Bürgler, Daniel E.
name: Schneider, Claus M.
name: Muto, Shunsuke
name: Rusz, Ján
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Measuring magnetic moments in ferromagnetic materials with atomic column resolution is theoretically possible using the electron magnetic circular dichroism (EMCD) technique in a (scanning) transmission electron microscope ((S)TEM). However, experimental and data processing hurdles currently hamper the realization of this goal. Experimentally, the sample must be tilted to a zone-axis orientation, yielding a complex distribution of magnetic scattering intensity, and the same sample region must be scanned multiple times with sub-atomic spatial registration necessary at each pass. Furthermore, the weak nature of the EMCD signal requires advanced data processing techniques to reliably detect and quantify the result. In this manuscript, we detail our experimental and data processing progress towards achieving single-pass zone-axis EMCD using a patterned aperture. First, we provide a comprehensive data acquisition and analysis strategy for this and other EMCD experiments that should scale down to atomic resolution experiments. Second, we demonstrate that, at low spatial resolution, promising EMCD candidate signals can be extracted, and that these are sensitive to both crystallographic orientation and momentum transfer.
description: 17 pages, 9 figures. Data available at DOI: 10.5281/zenodo.3361582 Code available at DOI: 10.5281/zenodo.3374648
Perfect polarization for arbitrary light beams
Creators: name: Goldberg, Aaron Z.
name: James, Daniel F. V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Polarization of light is harnessed in an abundance of classical and quantum applications. Characterizing polarization in a classical sense is done resoundingly successfully using the Stokes parameters, and numerous proposals offer new quantum counterparts of this characterization. The latter often rely on distance measures from completely polarized or unpolarized light. We here show that the accepted class of perfectly polarized quantum states of light is severely lacking in terms of both pure states and mixed states. By appealing to symmetry and geometry arguments we determine all of the states corresponding to perfect polarization, and show that the accepted class of completely polarized quantum states is only a subset of our result. We use this result to reinterpret the canonical degree of polarization, commenting on its interpretation for classical and quantum light. Our results are necessary for any further characterizations of light's polarization.
description: Fixed mistake in commutation relations
$L^p$ Coarse Baum-Connes Conjecture and $K$-theory for $L^p$ Roe Algebras
Creators: name: Zhang, Jianguo
name: Zhou, Dapeng
Publisher: name: arXiv
Year: 2019
Subjects: subject: K-Theory and Homology (math.KT)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 19K56, 46L80, 47L10

description: In this paper, we verify the $L^p$ coarse Baum-Connes conjecture for spaces with finite asymptotic dimension for $p\in[1,\infty)$. We also show that the $K$-theory of $L^p$ Roe algebras are independent of $p\in(1,\infty)$ for spaces with finite asymptotic dimension.
description: 35 pages, to appear in Journal of Noncommutative Geometry
Calculation of hyperfine structure constants of small molecules using Z-vector method in the relativistic coupled-cluster framework
Creators: name: Sasmal, Sudip
name: Talukdar, Kaushik
name: Nayak, Malaya K.
name: Vaval, Nayana
name: Pal, Sourav
Publisher: name: arXiv
Year: 2017
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Z-vector method in the relativistic coupled-cluster framework is employed to calculate the parallel and perpendicular components of the magnetic hyperfine structure constant of a few small alkaline earth hydrides (BeH, MgH, and CaH) and fluorides (MgF and CaF). We have compared our Z-vector results with the values calculated by the extended coupled-cluster (ECC) method reported in Phys. Rev. A 91 022512 (2015). All these results are compared with the available experimental values. The Z-vector results are found to be in better agreement with the experimental values than those of the ECC values.
description: 5 pages, 2 figures
A New Atomic Norm for DOA Estimation With Gain-Phase Errors
Creators: name: Chen, Peng
name: Chen, Zhimin
name: Cao, Zhenxin
name: Wang, Xianbin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The problem of direction of arrival (DOA) estimation has been studied for decades as an essential technology in enabling radar, wireless communications, and array signal processing related applications. In this paper, the DOA estimation problem in the scenario with gain-phase errors is considered, and a sparse model is formulated by exploiting the signal sparsity in the spatial domain. By proposing a new atomic norm, named as GP-ANM, an optimization method is formulated via deriving a dual norm of GP-ANM. Then, the corresponding semidefinite program (SDP) is given to estimate the DOA efficiently, where the SDP is obtained based on the Schur complement. Moreover, a regularization parameter is obtained theoretically in the convex optimization problem. Simulation results show that the proposed method outperforms the existing methods, including the subspace-based and sparse-based methods in the scenario with gain-phase errors.
description: 15 pages, 16 figures
Total Coloring of some classes of Powers of Cycles
Creators: name: S, Prajnanaswaroopa
name: Geetha, J
name: Somasundaram, K
name: Fu, Hung-Lin
name: Narayanan, N
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05B15

description: In this paper, we have obtained the total chromatic number of some classes of Cayley graphs, odd graphs and mock threshold graphs.
description: This paper has significant overlap with arXiv:1812.05833
A HYBRID DENOISING APPROACH FOR SPECKLE NOISE REDUCTION IN ULTRASONIC B-MODE IMAGES
Creators: name: Andwari, Amin Mahmoudzadeh
name: Grisham, John
name: S. EL Rabaie
name: T. E. Taha
name: O. Zahran
name: F. E. Abd El-Samie
name: W. Al-Nauimy
Publisher: name: figshare
Year: 2018
Subjects: subject: 90601 Circuits and Systems
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the literature a large number of linear and nonlinear denoising approaches for ultrasonic B-mode images. The main purpose of this paper is to test the effect of hybridization of the Log Gabor filter with the otheapproaches. The log-Gabor functions, by definition, always have no DC component, and secondly, the transfer function of the log Gabor function has an extended tail at the high frequency end. Results show that thhybridization of the Log Gabor with the Median filter gives the best output images and PSNR output values.
XXVII Международная научно-практическая конференция «Актуальные проблемы науки и образования в условиях современных вызовов»
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2024

description: XXVII Международная научно-практическая конференция «Актуальные проблемы науки и образования в условиях современных вызовов»
Ochrolechia upsaliensis A. Massal.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Fungi
Ascomycota
Ascomycetes
Pertusariales
Pertusariaceae
Ochrolechia
Ochrolechia upsaliensis

description: Lichen upsaliensis Linnaeus, Species Plantarum 2: 1142. 1753.
"Habitat in summis Jugis supra terram sterilissimam campi polonici, Upsaliae, nec alibi nobis visus." RCN: 8181.
 Lectotype (Howe in Bull. Torrey Bot. Club 39: 201. 1912; Jørgensen & al. in Bot. J. Linn. Soc. 115: 360, f. 63. 1994): Herb. Linn. No. 1273.44, upper right specimen (LINN).
 Current name: Ochrolechia upsaliensis (L.) A. Massal. (Pertusariaceae).
 Note: Jørgensen & al. (in Bot. J. Linn. Soc. 115: 360, 382, f. 63. 1994) restricted Howe’s original type choice to one of the specimens on the sheet.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 631, DOI: 10.5281/zenodo.291971
Ramalina usnea R. Howe 1914
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Ranunculales
Ramalinaceae
Ramalina
Ramalina usnea

description: Lichen usnea Linnaeus, Systema Naturae, ed. 12, 2: 713; Mantissa Plantarum: 131. 1767.
"Habitat in arboribus Indiae Or. Ins. Helenae, madagascar, Martinicae. Jacqu." RCN: 8248.
 Lectotype (Howe in Bull. Torrey Bot. Club 39: 201. 1912): Jacquin s.n., Herb. Linn. No. 1273.278 (LINN).
 Current name: Ramalina usnea (L.) R. Howe (Ramalinaceae).
 Note: See review by Jørgensen & al. (in Bot. J. Linn. Soc. 115: 361, 382, f. 62. 1994).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 631, DOI: 10.5281/zenodo.291971
Status of Serverless Computing and Function-as-a-Service(FaaS) in Industry and Research
Creators: name: Fox, Geoffrey C.
name: Ishakian, Vatche
name: Muthusamy, Vinod
name: Slominski, Aleksander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: This whitepaper summarizes issues raised during the First International Workshop on Serverless Computing (WoSC) 2017 held June 5th 2017 and especially in the panel and associated discussion that concluded the workshop. We also include comments from the keynote and submitted papers. A glossary at the end (section 8) defines many technical terms used in this report.
description: Technical Report
Bombing of Petworth Boys' School - Harry Burgess's Experience
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: No description available.
A reverse Hölder inequality for the gradient of solutions to Trudinger's equation
Creators: name: Saari, Olli
name: Schwarzacher, Sebastian
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We provide a higher integrability result for the gradient of positive solutions to Trudinger's equation (also known as the doubly non-linear equation) for the range $p\in [2,\infty)$. The estimate is achieved by refining a construction of intrinsic cylinders from the vectorial setting by incorporating estimates only available in the scalar case.
description: 14 pages, referee comments incorporated, to appear in NoDEA
Unraveling Existential Crisis: A Study of Syed Waliullah's Tree Without Roots
Creators: name: Sultana, Humaera
name: Miah, Md. Jony
Publisher: name: Zenodo
Year: 2024

description: This study explores the existential crises experienced by the major character in the novel Tree Without Roots by Syed Waliullah. The book functions as a literary device that allows for the examination of the perplexing interplay of existential concerns within the framework of a postmodern societal setting. The story unfolds against the backdrop of post-colonial East Pakistan (now Bangladesh), with a sophisticated analysis of identity, alienation, and the quest for meaning in an ever-changing world. Majeed, the protagonist of the novel, serves as a representation for economically disadvantaged individuals residing in rural areas of Bangladesh, who rely on self-constructed religious affiliations as a means of establishing their presence within society and he experiences marginalization due to his exploitative nature within society, exhibits traits of social isolation and emotional detachment. The primary cause of his isolation and emotional separation from social life may be attributed to a feeling of alienation stemming from societal conditions. This research tries to elucidate the intricacies of identity, choice, and purpose in a swiftly evolving society by delving into the experiences and obstacles faced by Majeed. This experiment employs the qualitative research method as well as existential philosophy. The result of the study demonstrates Majeed's existential quest, examining his cultural estrangement, interpersonal connections, and the symbolic importance he has within the wider framework of the novel.
A generalized tetrahedral property
Creators: name: Nuñez-Zimbrón, Jesús
name: Perales, Raquel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 53C23, 49Q15

description: We present examples of metric spaces that are not Riemannian manifolds nor dimensionally homogeneous that satisfy the Tetrahedral Property. In spite of that, Euclidean cones over metric spaces with small diameter do not satisfy this property. We extend Sormani's Tetrahedral Property to a less restrictive property and prove that this generalized definition retains all the results of the original Tetrahedral Property proven by Portegies-Sormani: it provides a lower bound on the sliced filling volume and a lower bound on the volumes of balls. Thus sequences with uniform bounds on this Generalized Tetrahedral Property also have subsequences which converge in both the Gromov-Hausdorff and Sormani-Wenger Intrinsic Flat sense to the same non-collapsed and countably rectifiable limit space.
description: The 2020 version has been accepted for publication by Mathematische Zeitschrif. In the previous version we made several changes to the article, including the title and abstract, as well as adding figures for improved exposition
Peltigera venosa Hoffm.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Magnoliophyta
Magnoliopsida
Ericales
Peltigeraceae
Peltigera
Peltigera venosa

description: Lichen venosus Linnaeus, Species Plantarum 2: 1148. 1753.
"Habitat in Europa ad margines scrobiculorum in sylvis. terrestris." RCN: 8214.
 Lectotype (Vitikainen in Acta Bot. Fenn. 152: 84. 1994): Herb. Linn. No. 1273.172, central specimen (LINN).
 Current name: Peltigera venosa (L.) Hoffm. (Peltigeraceae).
 Note: See review by Jørgensen & al. (in Bot. J. Linn. Soc. 115: 365, 382, f. 65. 1994).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part L), pp. 610-650 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 631, DOI: 10.5281/zenodo.291971
Eye Semantic Segmentation with a Lightweight Model
Creators: name: Huynh, Van Thong
name: Kim, Soo-Hyung
name: Lee, Guee-Sang
name: Yang, Hyung-Jeong
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we present a multi-class eye segmentation method that can run the hardware limitations for real-time inference. Our approach includes three major stages: get a grayscale image from the input, segment three distinct eye region with a deep network, and remove incorrect areas with heuristic filters. Our model based on the encoder decoder structure with the key is the depthwise convolution operation to reduce the computation cost. We experiment on OpenEDS, a large scale dataset of eye images captured by a head-mounted display with two synchronized eye facing cameras. We achieved the mean intersection over union (mIoU) of 94.85% with a model of size 0.4 megabytes. The source code are available https://github.com/th2l/Eye_VR_Segmentation
description: To appear in ICCVW 2019. Pre-trained models and source code are available https://github.com/th2l/Eye_VR_Segmentation