cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetric differentials and the fundamental group
Creators: name: Brunebarbe, Yohan
name: Klingler, Bruno
name: Totaro, Burt
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14D07, 14F35, 32Q05

description: Esnault asked whether every smooth complex projective variety with infinite fundamental group has a nonzero symmetric differential (a section of a symmetric power of the cotangent bundle). In a sense, this would mean that every variety with infinite fundamental group has some nonpositive curvature. We show that the answer to Esnault's question is positive when the fundamental group has a finite-dimensional representation over some field with infinite image. This applies to all known varieties with infinite fundamental group. Along the way, we produce many symmetric differentials on the base of a variation of Hodge structures. One interest of these results is that symmetric differentials give information in the direction of Kobayashi hyperbolicity. For example, they limit how many rational curves the variety can contain.
description: 14 pages; v3: references added. To appear in Duke Math. J
Serrata granum Boyer 2008, n. sp.
Creators: name: Boyer, Franck
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Marginellidae
Serrata
Serrata granum

description: Serrata granum n. sp. Fig. 38 TYPE MATERIAL. — Holotype (dd) MNHN 20618. TYPE LOCALITY. — Norfolk Ridge, 23°22’S, 168°01’E, 381-469 m [BATHUS 3: stn DW 827]. MATERIAL EXAMINED. — Norfolk Ridge. BATHUS 3: stn DW 827, 23°22’S, 168°01’E, 381-469 m, 1 dd (holotype, Fig. 38). DISTRIBUTION. — Northern Norfolk Ridge, one shell in 381-469 m. DESCRIPTION. — Shell ovate subpyriform, solid, opaque. Protoconch paucispiral, small, very low. Spire very low and blunt. Aperture very long, subvertical, regular. Base tapering. Outer lip reflected widely along all its length, arched; shoulder high, protruding, outer margin thick, wide, bevelled, stepped, inner edge bearing 8 small, low, blunt, labial denticles. Three oblique plaits visible on columellar edge, 2 lower ones longer than uppermost one, thick, closely spaced, third one smaller, thin, fourth, uppermost tiny plait situated within aperture. Colour dirty whitish (faded). Dimensions: 4.00 x 2.20 mm. Radula unknown. REMARKS. — In many respects, Serrata granum is similar to the French Polynesian species Serrata translata (Fig. 4), in its general oval outline, its very low spire and in several details such as the shape of the columellar plaits and of the outer lip. Serrata granum differs from S. translata in its more rounded outline, its smaller protoconch and its still lower spire, its longer aperture and its more reflected outer lip. ETYMOLOGY. — Latin granum (n., grain), referring to the small size and oval outline of the shell.
description: Published as part of Boyer, Franck, 2008, The genus Serrata Jousseaume, 1875 (Caenogastropoda: Marginellidae) in New Caledonia, pp. 389-436 in Mémoires du Muséum national d'Histoire naturelle 196 on page 415
title: Effects of Ultrasonic Scaling and Hand Scaling on Root Typography
Creators: name: Herremans, Kim Lee
Publisher: name: Old Dominion University Libraries
Year: 1991

description: The purpose of this study was to determine the effects of scaling and root planning with the modified P-10 CavitronRtip and curet instruments on root surface topography. Sample specimens included 20 periodontally involved extracted human teeth. Specimens were carved into a three split root design, each sample specimen acting as its own control. Control and experimental surfaces were randomly assigned to each specimen. Scaling techniques were applied on the assigned experimental surfaces for 2 minutes and 14 seconds. A scanning electron microscope was used to examine and micrograph root surface topography of experimental surfaces. Photomicrographs were evaluated using categories of root smoothness and scored by an examiner blind to the assigned specimen groups. Surface measurements from the modified ultrasonic P-10 tip were compared to surfaces hand scaled with curets. Data were analyzed at the 0.05 level of significance using a one-way analysis of variance and Newman-Kuels multiple comparison tests. Findings concluded that scaling and root planning with the modified P-10 resulted in smoother root surfaces than curets. However, both methods of instrumentation produced a significantly smoother root surface than the control group.
Stability of ZND detonations for Majda's model
Creators: name: Jung, Soyeun
name: Yao, Jinghua
Publisher: name: arXiv
Year: 2012
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We evaluate by direct calculation the Lopatinski determinant for ZND detonations in Majda's model for reacting flow, and show that on the nonstable (nonnegative real part) complex half-plane it has a single zero at the origin of multiplicity one, implying stability. Together with results of Zumbrun on the inviscid limit, this recovers the result of RoqueJoffre-Vila that viscous detonations of Majda's model also are stable for sufficiently small viscosity, for any fixed detonation strength, heat release, and rate of reaction.
description: This is the same as the paper published in Quart. Appl. Math. 70 (2012), with minor fix. We allow u_+ \geq 0(not only u_+=0) that was mistakenly omitted in original treatment. The analogy of the model for gas dynamics is only for u_+ \geq 0, the "physical" range defined by Majda
Casting Out Demons: Sanitizing Training Data for Anomaly Sensors
Creators: name: Cretu, Gabriela F.
name: Stavrou, Angelos
name: Locasto, Michael E.
name: Stolfo, Salvatore J.
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2008
Subjects: Computer science
Anomaly detection (Computer security)
Computer security
Cyberterrorism

description: The efficacy of anomaly detection (AD) sensors depends heavily on the quality of the data used to train them. Artificial or contrived training data may not provide a realistic view of the deployment environment. Most realistic data sets are dirty; that is, they contain a number of attacks or anomalous events. The size of these high-quality training data sets makes manual removal or labeling of attack data infeasible. As a result, sensors trained on this data can miss attacks and their variations. We propose extending the training phase of AD sensors (in a manner agnostic to the underlying AD algorithm) to include a sanitization phase. This phase generates multiple models conditioned on small slices of the training data. We use these "micro-models" to produce provisional labels for each training input, and we combine the micro-models in a voting scheme to determine which parts of the training data may represent attacks. Our results suggest that this phase automatically and significantly improves the quality of unlabeled training data by making it as "attack-free" and "regular" as possible in the absence of absolute ground truth. We also show how a collaborative approach that combines models from different networks or domains can further refine the sanitization process to thwart targeted training or mimicry attacks against a single site.
Lower limits on ultrahigh-energy cosmic ray and jet powers of TeV blazars
Creators: name: Razzaque, Soebur
name: Dermer, Charles D.
name: Finke, Justin D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Lower limits on the power emitted in ultrahigh-energy cosmic rays (UHECRs), which are assumed to be protons with energy 1e17-1e20 eV, are derived for TeV blazars with the assumption that the observed TeV gamma rays are generated due to interactions of these protons with cosmic microwave photons. The limits depend on the spectrum of the injected UHECR protons. While for a -2.2 injection spectrum, the lower limits on the powers emitted in UHECRs by 1ES 0229+200, 1ES 1101-232 and 1ES 0347-121 are lower than their respective synchrotron luminosities (1e46 erg/s); in the case of 1ES 1426+428 it exceeds the corresponding synchrotron luminosity by up to an order of magnitude. The proposed Auger North Observatory should be able to detect 4e19 eV cosmic ray protons from 1ES 1426+428 within a few years of operation and test the TeV gamma-ray production model by UHECR energy losses while propagating along the line-of-sight, or constrain the intergalactic magnetic field to be larger than 1e-16 G in case of no detection. The lower limits on the apparent-isotropic jet power from accelerated 1e10-1e20 eV proton spectra in the blazar jet is of the order of the Eddington luminosity of a 1e9 solar mass black hole for a cosmic-ray injection spectrum -2.2 or harder for all blazars considered except for 1ES 1426+428. In the case of the latter the apparent-isotropic jet power exceeds the Eddington luminosity by an order of magnitude. For an injection spectrum softer than -2.2, as is required to fit the observed cosmic-ray data above 1e17-1e18 eV, the Eddington luminosity is exceeded by the lower limits on the jet power for all blazars considered.
description: 9 pages, 6 figures, typos fixed, ApJ (in press)
Absence of dynamical gap generation in suspended graphene
Creators: name: Wang, Jing-Rong
name: Liu, Guo-Zhu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: There is an interesting proposal that the long-range Coulomb interaction in suspended graphene can generate a dynamical gap, which leads to a semimetal-insulator phase transition. We revisit this problem by solving the self-consistent Dyson-Schwinger equations of wave function renormalization and fermion gap. In order to satisfy the Ward identity, a suitable vertex function is introduced. The impacts of singular velocity renormalization and dynamical screening on gap generation are both included in this formalism, and prove to be very important. We obtain a critical interaction strength, $3.2 < α_{c} < 3.3$, which is larger than the physical value $α= 2.16$ for suspended graphene. It therefore turns out that suspended graphene is a semimetal, rather than insulator, at zero temperature.
description: 14 pages, 5 figures, 1 table
An integrable spin chain for the SL(2,R)/U(1) black hole sigma model
Creators: name: Ikhlef, Yacine
name: Jacobsen, Jesper Lykke
name: Saleur, Hubert
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a spin chain based on finite-dimensional spin-1/2 SU(2) representations but with a non-hermitian `Hamiltonian' and show, using mostly analytical techniques, that it is described at low energies by the SL(2,R)/U(1) Euclidian black hole Conformal Field Theory. This identification goes beyond the appearance of a non-compact spectrum: we are also able to determine the density of states, and show that it agrees with the formulas in [J. Math. Phys. 42, 2961 (2001)] and [JHEP 04, 014 (2002)], hence providing a direct `physical measurement' of the associated reflection amplitude.
description: 6 pages, 3 figures, in RevTeX. Corrected some typos
Catalysis and ligand design : living ring opening polymerization of lactide with chiral dinuclear indium catalysts and template synthesis of functionalized carbenes on iron complexes
Creators: name: Yu, Insun
Publisher: name: University of British Columbia
Year: 2014

description: A family of indium complexes were synthesized and their catalytic activity towards the ring opening polymerization of lactide to form poly(lactic acid), a biodegradable polymer, were assessed. Racemic and enantiopure mono- and bis-alkoxy-bridged complexes bearing bulky chiral diaminoaryloxy ligands were synthesized and characterized. The reaction of the bis-alkoxy-bridged complexes with water produced mono-hydroxy-alkoxy-bridged dinuclear indium complexes. Investigation of both the mono- and bis-alkoxy-bridged complexes confirmed dinuclear structures in solution and in the solid state. These dinuclear complexes were highly active catalysts for the ring-opening polymerization of lactide to form poly(lactic acid) at room temperature. A detailed mechanistic investigation showed that the selectivities obtained for the ROP of racemic LA with the mono- and bis-alkoxy-bridged complexes are different and, along with kinetics investigations, suggest a dinuclear propagating species for these complexes. Additionally, neutral and cationic alkyl indium complexes bearing a chiral diaminophenoxy ligand were synthesized and characterized. Investigation of the cationic complexes in solution by NMR spectroscopy showed the counter anions influenced the different chemical environments at the metal center in solution. The preliminary polymerization of methyl methacrylate with neutral dialkyl and cationic alkyl indium complexes produced poly(methyl methacrylate). This is the first demonstration of cationic indium complexes for catalytic reactivity not only in solution but also in neat monomer. Finally, a family of cyclic and acyclic Fischer-type carbenes were generated via nucleophilic attack at the carbon atom of a coordinated isocyande on a piano-stool iron(II) complex. All complexes were characterized by IR and NMR spectroscopy and, where possible, by single-crystal X-ray diffraction. In particular, rare donor-functionalized acyclic (phosphino)(amino)- and (silyl)(amino)carbenes were generated by a two-step template synthesis on the iron(II) complex. The methodology involves the initial formation of ylidene complexes followed by reduction of the resulting imine to yield the desired carbene complexes. The reversible conversion of an acyclic (sily)(amino)carbene complex to its ylidene precursor via slow deprotonation with hydride was demonstrated.
Robustly Stable Signal Recovery in Compressed Sensing with Structured Matrix Perturbation
Creators: name: Yang, Zai
name: Zhang, Cishen
name: Xie, Lihua
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The sparse signal recovery in the standard compressed sensing (CS) problem requires that the sensing matrix be known a priori. Such an ideal assumption may not be met in practical applications where various errors and fluctuations exist in the sensing instruments. This paper considers the problem of compressed sensing subject to a structured perturbation in the sensing matrix. Under mild conditions, it is shown that a sparse signal can be recovered by $\ell_1$ minimization and the recovery error is at most proportional to the measurement noise level, which is similar to the standard CS result. In the special noise free case, the recovery is exact provided that the signal is sufficiently sparse with respect to the perturbation level. The formulated structured sensing matrix perturbation is applicable to the direction of arrival estimation problem, so has practical relevance. Algorithms are proposed to implement the $\ell_1$ minimization problem and numerical simulations are carried out to verify the result obtained.
description: 14 pages, 7 figures
Cándida Beltrán Rendón
Creators: name: Márquez, Kenya
name: Vázquez, Luis Bernardo Jaime
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Around 1914, at the age of sixteen, Cándida Beltrán Rendón wrote the film story El secreto de la abuela/The Grandmother’s Secret. A copy of this story can be found in the Archivo General de la Nación in Mexico City. Fourteen years later, in 1928, Beltrán Rendón, at thirty years of age, directed her first and only motion picture—a feature—from a script based on her story and became the last of the five women who directed during Mexican cinema’s silent period. Granddaughter of José Rendón Peniche (1829–1887), an important political figure in the southeast region of Mexico during the nineteenth century (Ciuk 2000, 69), Cándida’s full name was Candelaria Beltrán Rendón. Although she was not the firstborn of the siblings, after her parents died, she took charge of a large family composed of at least seven girls and two boys.
Additional file 1 of Association between light at night and the risk of child death in sub-saharan Africa: a cross-sectional analysis based on DHS data
Creators: name: Li, Xinyue
name: Bachwenkizi, Jovine
name: Chen, Renjie
name: Kan, Haidong
name: Meng, Xia
Publisher: name: figshare
Year: 2023
Subjects: subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Supplementary Material 1: Figure S1. Flow diagram of the country selection progress in the analysis. Figure S2. Distribution of LAN in Africa in 2005. Figure S3. Changes in annual mean LAN in the 15 countries included in this study from 2005 to 2013. Figure S4. Correlation between household wealth quantile and LAN in the 15 countries included in this study. Table S1. Distribution of Under 5 mortality rate and LAN level for the study population in urban and rural areas in 15 African countries. Table S2. Stratified analysis of LAN and risk of child mortality in Africa
Hawking emission from quantum gravity black holes
Creators: name: Nicolini, Piero
name: Winstanley, Elizabeth
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We address the issue of modelling quantum gravity effects in the evaporation of higher dimensional black holes in order to go beyond the usual semi-classical approximation. After reviewing the existing six families of quantum gravity corrected black hole geometries, we focus our work on non-commutative geometry inspired black holes, which encode model independent characteristics, are unaffected by the quantum back reaction and have an analytical form compact enough for numerical simulations. We consider the higher dimensional, spherically symmetric case and we proceed with a complete analysis of the brane/bulk emission for scalar fields. The key feature which makes the evaporation of non-commutative black holes so peculiar is the possibility of having a maximum temperature. Contrary to what happens with classical Schwarzschild black holes, the emission is dominated by low frequency field modes on the brane. This is a distinctive and potentially testable signature which might disclose further features about the nature of quantum gravity.
description: 36 pages, 18 figures, v2: updated reference list, minor corrections, version matching that published on JHEP
Innovative sludge pretreatment technologies and enhanced anaerobic digestion
Creators: name: Yi, Weigang
Publisher: name: University of British Columbia
Year: 2012

description: This dissertation reports the research findings from an investigation into the use of four technologies for municipal wastewater sludge pre-digestion treatment. The technologies explored include microwave, the microwave / hydrogen peroxide process, ultrasound and biological enzyme protease treatment. The general purpose of the sludge pretreatment applications is to improve anaerobic digestion efficiency in terms of biogas production, organic reduction and nutrient recovery. An examination was first carried out on the effects of these technologies on sludge solubilization (disintegration and hydrolysis), and the various factors influencing treatment efficiencies. Further detailed investigation was undertaken on the sludge macromolecule solubilization, biomass cell destruction and particle size alteration. Finally, an evaluation of the pretreatment impact on both mesophilic and thermophilic anaerobic digestion was done. This research work found that the degree of sludge solubilization is depending on a number of operating factors such as specific energy, temperature, power input, power density, treatment time, and specific oxidant dosage. In general, specific energy is the dominant factor. Substantial improvements in organic solubilization by the pretreatments were recorded (up to 43% increase in COD, 50% in protein solubilized, at specific energy 5000 kJ/g-DS). Different treatment methods resulted in variation in solubilization effect and digestion performance. Amino acid was found to be the key parameter in correlating to the mesophilic digestion improvements. Pretreatment improves biodegradability in mesophilic digestion (25% total biogas production increase). The mesophilic digestion reaction was found to fit second-order kinetics. Thermophilic digestion was inhibited initially by the large increase in soluble substrates, but recovered at the end of digestion period. The biogas production increase in mesophilic digestion was correlated to the increase in amino acids (R²=0.9216), not the increase in overall soluble COD. The inhibition in thermophilic digestion was correlated to the sum of increased soluble protein, polysaccharides and amino acids (R²=0.9822), regardless of the different pretreatment methods used. Overall, ultrasound pretreatment was found to be better energy efficient that other methods tested.
High Frequency Word Entrainment in Spoken Dialogue: Presentation Powerpoint Slides
Creators: name: Hirschberg, Julia Bell
name: Nenkova, Ani
name: Gravano, Agustin
Publisher: name: Columbia University
Year: 2008
Subjects: subject: Computer science
subject: Information technology
subject: Linguistics
subject: FOS: Languages and literature

description: Cognitive theories of dialogue hold that entrainment, the automatic alignment between dialogue partners at many levels of linguistic representation, is key to facilitating both production and comprehension in dialogue. In this paper we examine novel types of entrainment in two corpora—Switchboard and the Columbia Games corpus. We examine entrainment in use of high-frequency words (the most common words in the corpus), and its association with dialogue naturalness and flow, as well as with task success. Our results show that such entrainment is predictive of the perceived naturalness of dialogues and is significantly correlated with task success; in overall interaction flow, higher degrees of entrainment are associated with more overlaps and fewer interruptions.
Ziv-Zakai Error Bounds for Quantum Parameter Estimation
Creators: name: Tsang, Mankei
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: I propose quantum versions of the Ziv-Zakai bounds as alternatives to the widely used quantum Cramér-Rao bounds for quantum parameter estimation. From a simple form of the proposed bounds, I derive both a "Heisenberg" error limit that scales with the average energy and a limit similar to the quantum Cramér-Rao bound that scales with the energy variance. These results are further illustrated by applying the bound to a few examples of optical phase estimation, which show that a quantum Ziv-Zakai bound can be much higher and thus tighter than a quantum Cramér-Rao bound for states with highly non-Gaussian photon-number statistics in certain regimes and also stay close to the latter where the latter is expected to be tight.
description: v1: preliminary result, 3 pages; v2: major update, 4 pages + supplementary calculations, v3: another major update, added proof of "Heisenberg" limit, v4: accepted by PRL
Dorothy Davenport Reid
Creators: name: Anderson, Mark Lynn
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: When she moved to Southern California as an actress with the Nestor Film Company in late 1911, Dorothy Davenport became one of the first members of the early film colony soon to be known as Hollywood. One early biography appearing in Moving Picture Stories reported that the actress had remained with the eastern branch of that company until late 1912 (31). However, a photograph in the Los Angeles Public Library shows the personnel of the Nestor Company in Pasadena, California, on December 23, 1911, with Dorothy Davenport a prominent member of the stock company. While at Nestor, which soon became a unit of Universal Pictures, she met actor Wallace Reid, whom she married in October of 1913. Both were popular players at Universal during the mid-teens, but Reid’s career accelerated after 1915 when he signed a long-term contract with the Jesse L. Lasky Feature Play Company and starred in a number of Cecil B. DeMille films, the year before the company merger that produced Famous-Players Lasky. Davenport Reid performed screen work less and less after giving birth to a son in 1917, though she was often featured in fan magazine stories about the Reids’ domestic life, like the 1921 Photoplay article “Where Bill Lives!”
Additional file 1 of Resatorvid alleviates experimental inflammatory TMJOA by restraining chondrocyte pyroptosis and synovial inflammation
Creators: name: Liu, Xin
name: Li, Huimin
name: Feng, Yaping
name: Guo, Huilin
name: Li, Yingjie
name: Ke, Jin
name: Long, Xing
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Uncropped gel and blot images.
Tropicalizing vs Compactifying the Torelli morphism
Creators: name: Viviani, Filippo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In this paper, we compare the compactified Torelli morphism (as defined by V. Alexeev) and the tropical Torelli map (as defined by the author in a joint work with S. Brannetti and M. Melo, and furthered studied by M. Chan). Our aim is twofold: on one hand, we will review the construction and main properties of the above mentioned two Torelli maps, focusing in particular on the description of their fibers achieved by the author in joint works with L. Caporaso; on the other hand, we will clarify the relationship between the two Torelli maps via the introduction of the reduction maps and the tropicalization maps.
description: 28 pages, final version, to appear in CRM Proceedings of the Conference Tropical and Non Archimedean Geometry (Bellairs Research Institute, May 2011)
ROBOSTEAM A2. Quality Assurance
Creators: name: García-Peñalvo, F. J.
name: Zangrando, V.
Publisher: name: Zenodo
Year: 2019
Subjects: RoboSTEAM, Erasmus+, STEAM, Robots, Computational Thinking, Quality assurance, EU

description: Presentation of the main guidelines for the Quality Assurance activity in the ROBOSTEAM Erasmus+ project (Ref. 2018-1-ES01-KA201-050939).

RoboSTEAM Kick-off meeting

Bragança, Portugal, February15-16, 2019
Coulomb-Gas Approach For Percolation Theory
Creators: name: Balaska, Smain
name: Sahabi, Toufik
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The aim of this work is to present a non trivial confirmation of the powerful of the Coulomb gas-techniques for Boundary Conformal Field Theory (BCFT). We show that we can re-derive the known Cardy result of percolation problem via the technics developed by S. Kawai in the Coulomb-Gas formalism.
description: 4 pages, 1 figure. The title and the abstract were changed and the introduction was modified
Operational Restructuring: New Strategies of Japan
Creators: name: Ogawa, Alicia
name: Sasanuma, Taisuke
name: Patrick, Hugh T.
name: Katayama, Takayuki
name: Kohyama, Susumu
name: Yogo, Kunihiko
name: Abe, Shuhei
name: Kanari, Norimichi
name: Miyato, Naoteru
name: Tasaku, Tomoo
name: Ehara, John
name: Grondine, Robert
name: Takada, Akira
name: Toyama, Kazuhiko
Publisher: name: Columbia University
Year: 2007
Subjects: Finance

description: Conference video available now. Report forthcoming.
Fluorescence quenching near small metal nanoparticles
Creators: name: Pustovit, Vitaliy N.
name: Shahbazyan, Tigran V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a microscopic model for fluorescence of a molecule (or semiconductor quantum dot) near a small metal nanoparticle. When a molecule is situated close to metal surface, its fluorescence is quenched due to energy transfer to the metal. We perform quantum-mechanical calculations of energy transfer rates for nanometer-sized Au nanoparticles and find that non-local and quantum-size effects significantly enhance dissipation in metal as compared to those predicted by semiclassical electromagnetic models. However, the dependence of transfer rates on molecule's distance to metal nanoparticle surface, $d$, is significantly weaker than the $d^{-4}$ behavior for flat metal surface with a sharp boundary predicted by previous calculations within random phase approximation.
description: 7 pages, 5 figures
Japan's struggle for economic recovery
Creators: name: Ogata, Shijuro
Publisher: name: Columbia University
Year: 2002
Subjects: Finance

description: In fall 2002, the Center on Japanese Economy and Business and the East Asian Institute of Columbia University continued its special lecture series featuring Mr. Shijuro Ogata. The lectures were held on September 25 and November 7, 2002. Mr. Ogata's presentations addressed the present monetary policy problems in Japan and the impact of Mr. Heizo Tanaka's appointment as Chief Financial Regulator on Japan's political-economic situation. This report is a summary of his presentations.
Development of Readout Interconnections for the Si-W Calorimeter of SiD
Creators: name: Woods, M.
name: Fields, R. G.
name: Holbrook, B.
name: Lander, R. L.
name: Moskaleva, A.
name: Neher, C.
name: Pasner, J.
name: Tripathi, M.
name: Brau, J. E.
name: Frey, R. E.
name: Strom, D.
name: Breidenbach, M.
name: Freytag, D.
name: Haller, G.
name: Herbst, R.
name: Nelson, T.
name: Schier, S.
name: Schumm, B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The SiD collaboration is developing a Si-W sampling electromagnetic calorimeter, with anticipated application for the International Linear Collider. Assembling the modules for such a detector will involve special bonding technologies for the interconnections, especially for attaching a silicon detector wafer to a flex cable readout bus. We review the interconnect technologies involved, including oxidation removal processes, pad surface preparation, solder ball selection and placement, and bond quality assurance. Our results show that solder ball bonding is a promising technique for the Si-W ECAL, and unresolved issues are being addressed.
description: 8 pages + title, 6 figures
Lotte Reiniger
Creators: name: Guerin, Frances
name: Mebold, Anke
Publisher: name: Columbia University
Year: 2016
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Lotte Reiniger made over sixty films, of which eleven are considered lost and fifty to have survived. Of the surviving films for which she had full artistic responsibility, eleven were created in the silent period if the three-part Doktor Dolittle (1927-1928) is considered a single film. Reiniger is known to have worked on—or contributed silhouette sequences to—at least another seven films in the silent era, and a further nine in the sound era. Additionally, there is evidence of her involvement in a number of film projects that remained at conceptual or pre-production stages.
Predicting Planets in Kepler Multi-Planet Systems
Creators: name: Fang, Julia
name: Margot, Jean-Luc
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We investigate whether any multi-planet systems among Kepler candidates (2011 February release) can harbor additional terrestrial-mass planets or smaller bodies. We apply the "packed planetary systems" hypothesis that suggests all planetary systems are filled to capacity, and use a Hill stability criterion to identify eight 2-planet systems with significant gaps between the innermost and outermost planets. For each of these systems, we perform long-term numerical integrations of 10^7 years to investigate the stability of 4000-8000 test particles injected into the gaps. We map out stability regions in orbital parameter space, and therefore quantify the ranges of semi-major axes and eccentricities of stable particles. Strong mean-motion resonances can add additional regions of stability in otherwise unstable parameter space. We derive simple expressions for the extent of the stability regions, which is related to quantities such as the dynamical spacing Delta, the separation between two planets in units of their mutual Hill radii. Our results suggest that planets with separation Delta < 10 are unlikely to host extensive stability regions, and that about 95 out of a total of 115 two-planet systems in the Kepler sample may have sizeable stability regions. We predict that Kepler candidate systems including KOI 433, KOI 72/Kepler-10, KOI 555, KOI 1596, KOI 904, KOI 223, KOI 1590, and KOI 139 can harbor additional planets or low-mass bodies between the inner and outer detected planets. These predicted planets may be detected by future observations.
description: 9 pages, 10 figures, accepted to ApJ
Additional file 1 of Application of “immersive contextualization based-learning teaching” mode in the orthopaedic musculoskeletal disorder module of clinical medicine education
Creators: name: Cai, Wufeng
name: You, Mingke
name: Li, Jian
name: Li, Qi
name: Wang, Duan
name: Wang, Haoyang
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Supplementary Material 1
Behavior-Profile Clustering for False Alert Reduction in Anomaly Detection Sensors
Creators: name: Frias-Martinez, Vanessa
name: Stolfo, Salvatore J.
name: Keromytis, Angelos D.
Publisher: name: Columbia University
Year: 2009
Subjects: Computer science

description: Anomaly detection (AD) sensors compute behavior profiles to recognize malicious or anomalous activities. The behavior of a host is checked continuously by the AD sensor and an alert is raised when the behavior deviates from its behavior profile. Unfortunately, the majority of AD sensors suffer from high volumes of false alerts either maliciously crafted by the host or originating from insufficient training of the sensor. We present a cluster-based AD sensor that relies on clusters of behavior profiles to identify anomalous behavior. The behavior of a host raises an alert only when a group of host profiles with similar behavior (cluster of behavior profiles) detect the anomaly, rather than just relying on the host's own behavior profile to raise the alert (single-profile AD sensor). A cluster-based AD sensor significantly decreases the volume of false alerts by providing a more robust model of normal behavior based on clusters of behavior profiles. Additionally, we introduce an architecture designed for the deployment of cluster-based AD sensors. The behavior profile of each network host is computed by its closest switch that is also responsible for performing the anomaly detection for each of the hosts in its subnet. By placing the AD sensors at the switch, we eliminate the possibility of hosts crafting malicious alerts. Our experimental results based on wireless behavior profiles from users in the CRAWDAD dataset show that the volume of false alerts generated by cluster-based AD sensors is reduced by at least 50% compared to single-profile AD sensors.
Natacha Rambova
Creators: name: Stutesman, Drake
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: In the 1920s, Natacha Rambova created a unique look in set design and costume for some of cinema’s most imaginative films. She was a powerful influence on designers such as Gilbert Adrian, whom she hired for his first film, and Michael Morris ranks her among such innovators as Erté, Paul Iribe, and Cecil Beaton. She was the niece of interior decorator Elsie de Wolfe, with whom she lived occasionally as a girl and whose style she particularly repudiated. Born Winifred Shaughnessy, Rambova changed her name in 1914 and joined Theodore Kosloff’s ballet troupe as a principal dancer. She designed their sets and costumes until Kosloff interested Cecil B. DeMille in her work, and she created the costume and décor for the Aztec sequence in his The Woman God Forgot (1917), and then sequences in DeMille’s Why Change Your Wife (1920) and Something to Think About (1920). She also designed parts of Alla Nazimova’s Billions (1920). According to Morris, Leider, and Lambert, Kosloff stole all of her credits, which she reclaimed by showing her design sketches to Nazimova.
Josephine Rector
Creators: name: Paranyuk, Viktoria
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Josephine Rector’s brief career in cinema as a scenario writer and actress is closely associated with the Essanay Film Manufacturing Company. Essanay was founded in Chicago in 1907 by George K. Spoor, distributor of screen equipment, and Gilbert M. “Bronco Billy” Anderson, actor, director, and producer, who became known as the first cowboy star. Convinced that Western adventure stories should be filmed in the real West, Anderson and a small crew set off in the direction of the Rockies sometime in 1909 or 1910 (Bell 1984, 39) to establish a second Essanay office. In April of 1912, the group, after short sojourns in Colorado and several towns in California, settled in Niles, just east of San Francisco, building a film studio and housing for its personnel.
title: Безопасность жизнедеятельности
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В практикуме приводится описание практических занятий, содержащих общие (теоретические) сведения, примеры расчетов и перечни заданий к занятиям по темам: человек и среда обитания, основы теории безопасности, комфортные условия жизнедеятельности, техногенные опасности и защита от них, антропогенные опасности и защита от них, управление безопасностью труда, защита населения и территорий от опасностей в чрезвычайных ситуациях. Подготовлен в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Предназначен для студентов, обучающихся по укрупненной группе специальностей и направлений подготовки высшего образования «Прикладная геология, горное дело, нефтегазовое дело и геодезия», изучающих дисциплину «Безопасность жизнедеятельности».
Differences in Patient Age Distribution between Influenza A Subtypes
Creators: name: Khiabanian, Hossein
name: Farrell, Gregory M.
name: St. George, Kirsten
name: Rabadan, Raul
Publisher: name: Columbia University
Year: 2009
Subjects: Virology
Epidemiology

description: Since the spring of 1977, two subtypes of influenza A virus (H3N2 and H1N1) have been seasonally infecting the human population. In this work we study the distribution of patient ages within the populations that exhibit the symptomatic disease caused by each of the different subtypes of influenza virus. When the publicly available extensive information is pooled across multiple geographical locations and seasons, striking differences emerge between these subtypes. We report that the symptomatic flu due to H3N2 is distributed across all age groups, whereas H1N1 causes symptomatic disease mainly in a younger population. These distinct characteristic spectra of age groups, possibly carried over from previous pandemics, are consistent with previous findings on the evolutionary dynamics of each subtype. Moreover, they are relevant to age-related risk assessments, modeling of epidemiological networks for specific age groups, and age-specific vaccine design. Recently, a novel H1N1 virus has spread around the world. Preliminary reports suggest that this new strain causes symptomatic disease in the younger population in a similar fashion to the seasonal H1N1 strains.
Serrata sinuosa Boyer 2008, n. sp.
Creators: name: Boyer, Franck
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Marginellidae
Serrata
Serrata sinuosa

description: Serrata sinuosa n. sp. Figs 49, 59 TYPE MATERIAL. — Holotype (lv) MNHN 20625 and 7 paratypes (lv and dd) MNHN 20626, 1 paratype (dd) MMM, 1 paratype (dd) NMNZ. TYPE LOCALITY. — Southern New Caledonia, 22°05’S, 167°45’E, 680-700 m [BIOCAL: stn DW 51]. MATERIAL EXAMINED. — Southern New Caledonia. BIOCAL: stn DW 33, 23°10’S, 167°10’E, 675-680 m, 1 dd; stn DW 51, 23°05’S, 167°45’E, 680-700 m, 4 lv (holotype, Fig. 49 and 3 paratypes MNHN), 6 dd (4 paratypes MNHN, 1 MMM, 1 NMNZ). DISTRIBUTION. — Southern New Caledonia, live in 680-700 m, shells in 675-700 m. DESCRIPTION. — Shell moderately slender, suboval, solid, subtranslucent. Protoconch paucispiral, large, low, smooth. Spire short, blunt, whorls weakly convex. Aperture moderately open, very oblique, widening noticeably anteriorly. Base rather tapering. Outer lip sinuous, thickened for most of its length, weakly narrowing anteriorly, central and upper parts noticeably reflected. Shoulder protruding, rounded, outer edge centrally depressed, outer margin thick, wide, flat, strongly stepped and protruding, inner edge bearing 14 tiny denticles, quite indistinct, more widely spaced and slightly more prominent along its moderately excavated anterior part than higher up. Four thin columellar plaits, 2 anterior ones oblique, weakly sinuous, 2 posterior ones less oblique, decreasing in size posteriorly. Ground colour pale golden opalescent, apex whitish, outer margin intense white. Dimensions: 7.10 x 3.90 mm. Radula from 1 specimen (Fig. 59): uniserial, 18 plates around 69 Μm in width, bearing 38-42 subequal, slender, acute cusps. REMARKS. — The shell morphology of Serrata sinuosa seems to be slightly variable. The shell of S. sinuosa is easily distinguished from that of S. veneria by its larger size, its blunter spire, the protruding shoulder of the outer lip, and its more sinuous outer lip with more numerous denticles, which become more widely spaced over the anterior part than higher up, rather than becoming fewer and more widely spaced over the posterior part as in S. veneria. The ground colour of the shell and the pattern of the columellar plaits are similar in both species. ETYMOLOGY. — Latin sinuosus (adj., winding), referring to the twisting shape of the outer lip.
description: Published as part of Boyer, Franck, 2008, The genus Serrata Jousseaume, 1875 (Caenogastropoda: Marginellidae) in New Caledonia, pp. 389-436 in Mémoires du Muséum national d'Histoire naturelle 196 on pages 422-423
Holographic Dark Energy Model Characterized by the Conformal-age-like Length
Creators: name: Huang, Zhuo-Peng
name: Wu, Yue-Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A holographic dark energy model characterized by the conformal-age-like length scale $L= \frac{1}{a^4(t)}\int_0^tdt' a^3(t') $ is motivated from the four dimensional spacetime volume at cosmic time $t$ in the flat Friedmann-Robertson-Walker universe. It is shown that when the background constituent with constant equation of state $w_m$ dominates the universe in the early time, the fractional energy density of the dark energy scales as $Ω_{de}\simeq \frac94(3+w_m)^2d^2a^2$ with the equation of state given by $w_{de}\simeq-\frac23 +w_m$. The value of $w_m$ is taken to be $w_m\simeq-1$ during inflation, $w_m=\frac13$ in radiation-dominated epoch and $w_m=0$ in matter-dominated epoch respectively. When the model parameter $d$ takes the normal value at order one, the fractional density of dark energy is naturally negligible in the early universe, $Ω_{de} \ll 1$ at $a \ll 1$. With such an analytic feature, the model can be regarded as a single-parameter model like the $Λ$CDM model, so that the present fractional energy density $Ω_{de}(a=1)$ can solely be determined by solving the differential equation of $Ω_{de}$ once $d$ is given. We further extend the model to the general case in which both matter and radiation are present. The scenario involving possible interaction between the dark energy and the background constituent is also discussed.
description: 9 pages, typos corrected, published version
Serrata arcuata Boyer 2008, n. sp.
Creators: name: Boyer, Franck
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Neogastropoda
Marginellidae
Serrata
Serrata arcuata

description: Serrata arcuata n. sp. Fig. 50 TYPE MATERIAL. — Holotype (dd) MNHN 20627. TYPE LOCALITY. — Off southwestern New Caledonia, 22°05’S, 165°58’E, 250-300 m [BATHUS 4: stn DW 885]. MATERIAL EXAMINED. — Southwestern New Caledonia. BATHUS 4: stn DW 885, 22°05’S, 165°58’E, 250-300 m, 1 dd (holotype, Fig. 50). DISTRIBUTION. — Southwestern New Caledonia, one shell in 250-300 m. DESCRIPTION. — Shell outline asymmetrical, rather subpyriform on left side and curved on right side. Moderately solid, opaque. Protoconch paucispiral, wide, low, smooth. Spire very short, wide, low, subconical, whorls weakly convex. Aperture subvertical, lower two thirds markedly open. Base rather wide. Outer lip smooth, arched, moderately thickened, shoulder slightly sloping, short, outer margin thick, protruding, flat, stepped, inner edge smooth, almost vertical over upper third, very slightly concave over lower two thirds. Four prominent columellar plaits, 2 lowest long, sinuous, oblique, 2 uppermost ones shorter, less oblique, very produced. Anterior plait tends to encompass border of siphonal canal. Ground colour whitish (faded). Dimensions: 5.10 x 2.80 mm. Radula unknown. REMARKS. — The shell morphology of S. arcuata is characterized by its arched labrum with smooth inner edge and its rather long and wide aperture, combined with a rather slender outline, a subpyriform left side, a short spire and a truncated base. In the shape of its aperture and its outer lip, S. arcuata matches the S. hians group, whereas it matches the S. boucheti group in the other features. ETYMOLOGY. — Latin arcuatus (adj., arched), referring to the curved labrum of this species.
description: Published as part of Boyer, Franck, 2008, The genus Serrata Jousseaume, 1875 (Caenogastropoda: Marginellidae) in New Caledonia, pp. 389-436 in Mémoires du Muséum national d'Histoire naturelle 196 on page 423
Ángela Ramos de Rotalde
Creators: name: Lucioni, Mario
name: Núñez, Irela
Publisher: name: Columbia University
Year: 2013
Subjects: Women in the motion picture industry
Motion pictures
Silent films

description: Ángela Ramos de Rotalde was one of Peru’s first journalists, and a progressive who sympathized with the early Peruvian communism of José Carlos Mariátegui. She maintained a strong feminist position that she defended with acute intelligence and a sense of humor. She also participated in Peruvian cinema. In 1927, Italian filmmaker Pedro Sambarino asked Ramos to write the script for a film he planned to direct. Sambarino came from La Paz, where he had directed Corazón aymara/Aymaran Heart (1925), the first Bolivian feature film. In that film there are many elements indicative of the director’s interests, such as the mixture of fiction and documentary and a love story that takes place in a local indigenous area. While Ramos had never before written for film, she had worked in publicity, had published some short stories, and had flirted with the idea of motion picture work.