cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Flux tube solutions in noncommutative gauge theories
Creators: name: Polychronakos, Alexios P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We derive nonperturbative classical solutions of noncommutative U(1) gauge theory, with or without a Higgs field, representing static magnetic flux tubes with arbitrary cross-section. The fields are nonperturbatively different from the vacuum in at least some region of space. The flux of these tubes is quantized in natural units. We also point out that magnetic monopole charge can be fractionized by embedding the monopoles in a constant magnetic field.
description: 10 pages, no figures; some references and a comment added
Symmetries of Large N Matrix Models for Closed Strings
Creators: name: Lee, C. - W. H.
name: Rajeev, S. G.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We obtain the symmetry algebra of multi-matrix models in the planar large N limit. We use this algebra to associate these matrix models with quantum spin chains. In particular, certain multi-matrix models are exactly solved by using known results of solvable spin chain systems.
description: 12 pages, 1 eps figure, RevTex, some minor typos in the publised version are corrected
Medea by Olga Taxidou, Directed by Lee Breuer and Eamonn Farrell. Mabou Mines Theater, New York, 23-25 March 2018. Interview with Olga Taxidou by Francesco Dall’Olio
Creators: name: Taxidou, Olga
name: Dall'Olio, Francesco
Publisher: name: Skenè. Journal of Theatre and Drama Studies
Year: 2019

description: Francesco Dall’Olio interviews Olga Taxidou on the March 2018 work-in-progress production of Taxidou’s Medea at Mabou Mines Theatre, New York, directed by Lee Breuer and Eamonn Farrell, with Maude Mitchell as Medea.
description: Skenè. Journal of Theatre and Drama Studies, Vol 5 No 1 (2019)
Drama-Based Foreign Language Learning and the Modern Mandragola
Creators: name: Lobalsamo, Teresa
name: Pasquali, Adriano
Publisher: name: Skenè. Journal of Theatre and Drama Studies
Year: 2019

description: Experiential learning is on the rise at post-secondary institutions across North America. Course instructors across all disciplines are implementing a wide variety of high-impact practices to investigate the transformative effects of experiential learning modules and student-centered environments on undergraduate education. At the University of Toronto Mississauga, experiential learning is the foundation of Italian Theatre and Performance, an upper-year Italian Studies course that uses drama and performance-based learning to reimagine the shape and function of foreign language education. Students work towards the shared goal of a live foreign theatrical performance by collaborating on product-oriented tasks such as scriptwriting, rehearsals, set design, and community outreach, which provide a professional and immersive context in which to refine their language skills. Through this emphasis on active learning and practical interactions, the theatre course transforms the passive humanities classroom into a vibrant student-centered environment that demonstrates how a comprehensive integration of drama and performance-based learning into foreign language education can greatly enhance student development of linguistic, sociocultural, and pragmatic competence in the target language. Keywords: experiential learning; performance-based learning; drama-based pedagogy; foreign language theatre; La Mandragola; Machiavelli
description: Skenè. Journal of Theatre and Drama Studies, Vol 5 No 1 (2019)
Hawking radiation and masses in generalized dilaton theories
Creators: name: Liebl, H.
name: Vassilevich, D. V.
name: Alexandrov, S.
Publisher: name: arXiv
Year: 1996
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A generalized dilaton action is considered of which the standard dilaton black hole and spherically reduced gravity are particular cases. The Arnowitt-Deser-Misner (ADM) and the Bondi-Sachs (BS) mass are calculated. Special attention is paid to both the asymptotic conditions for the metric as well as for the reference space-time. For the latter one we suggest a modified expression thereby obtaining a new definition of energy. Depending on the parameters of the model the Hawking radiation behaves like a positive or negative power of the mass.
description: 24 pages, 3 Postscript figures
Asymptotic sieve for primes
Creators: name: Friedlander, John
name: Iwaniec, Henryk
Publisher: name: arXiv
Year: 1998
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: This article develops a new sieve method which by adding an additional axiom to the classical formulation breaks the well-known parity problem and allows one to detect primes in thin, interesting integer sequences. In the accompanying paper [math.NT/9811184] the practicality of the axiom is demonstrated by verifying it (and the other axioms) to produce primes in the sequence a^2+b^4 with the relevant asymptotics.
description: 25 pages, published version
Reversed dynamo at small scales and large magnetic Prandtl number
Creators: name: Brandenburg, Axel
name: Rempel, Matthias
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We show that at large magnetic Prandtl numbers, the Lorentz force does work on the flow at small scales and drives fluid motions, whose energy is dissipated viscously. This situation is opposite to that in a normal dynamo, where the flow does work against the Lorentz force. We compute the spectral conversion rates between kinetic and magnetic energies for several magnetic Prandtl numbers and show that normal (forward) dynamo action occurs on large scales over a progressively narrower range of wavenumbers as the magnetic Prandtl number is increased. At higher wavenumbers, reversed dynamo action occurs, i.e., magnetic energy is converted back into kinetic energy at small scales. We demonstrate this in both direct numerical simulations forced by volume stirring and in large eddy simulations of solar convectively driven small-scale dynamos. Low density plasmas such as stellar coronae tend to have large magnetic Prandtl numbers, i.e., the viscosity is large compared with the magnetic diffusivity. The regime in which viscous dissipation dominates over resistive dissipation for large magnetic Prandtl numbers was also previously found in large eddy simulations of the solar corona, i.e., our findings are a more fundamental property of MHD that is not just restricted to dynamos. Viscous energy dissipation is a consequence of positive Lorentz force work, which may partly correspond to particle acceleration in close-to-collisionless plasmas. This is, however, not modeled in the MHD approximation employed. By contrast, resistive energy dissipation on current sheets is expected to be unimportant in stellar coronae.
description: 9 pages, 6 figures, 2 tables, Astrophys. J., in press
Carotenoids from the ripening bacterium Brevibacterium linens impart color to the rind of the French cheese, Fourme de Montbrison (PDO)
Creators: name: Giuffrida, Daniele
name: Monnet, Christophe
name: Laurent, Florence
name: Cacciola, Francesco
name: Oteri, Marianna
name: Piver, Mélanie Le
name: Yanis Caro
name: Donato, Paola
name: Mondello, Luigi
name: Roueyre, Daniel
name: Dufossé, Laurent
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
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: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Rind color of some high-value PDO cheeses is related to the presence of carotenoids, but little is known about the structure of the pigmented compounds and their origin. Our objective was to describe the carotenoids extracted from the rind of a French cheese, Fourme de Montbrison, and to compare them with the pigments produced by a bacterial strain used as an adjunct culture in the cheese ripening process. Eleven carotenoids were detected in the cheese rinds or in the biomass of Brevibacterium linens. Most of the carotenoids from the rinds belonged to the aryl (aromatic) carotenoid family, including hydroxylated and non-hydroxylated isorenieratene. Chlorobactene, a carotenoid rarely found in food products, was also detected. Agelaxanthin A was identified in the cheese rinds as well as in the B. linens biomass. Occurrence of this compound was previously described in only one scientific publication, where it was isolated from the sponge Agela schmidtii.
New perspectives in cross-validation
Creators: Zhou, Wenda
Publisher: name: Columbia University
Year: 2020
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: Statistics--Methodology
subject: Statistics--Models

description: Appealing due to its universality, cross-validation is an ubiquitous tool for model tuning and selection. At its core, cross-validation proposes to split the data (potentially several times), and alternatively use some of the data for fitting a model and the rest for testing the model. This produces a reliable estimate of the risk, although many questions remain concerning how best to compare such estimates across different models. Despite its widespread use, many theoretical problems remain unanswered for cross-validation, particularly in high-dimensional regimes where bias issues are non-negligible. We first provide an asymptotic analysis of the cross-validated risk in relation to the train-test split risk for a large class of estimators under stability conditions. This asymptotic analysis is expressed in the form of a central limit theorem, and allows us to characterize the speed-up of the cross-validation procedure for general parametric M-estimators. In particular, we show that when the loss used for fitting differs from that used for evaluation, k-fold cross-validation may offer a reduction in variance less (or greater) than k. We then turn our attention to the high-dimensional regime (where the number of parameters is comparable to the number of observations). In such a regime, k-fold cross-validation presents asymptotic bias, and hence increasing the number of folds is of interest. We study the extreme case of leave-one-out cross-validation, and show that, for generalized linear models under smoothness conditions, it is a consistent estimate of the risk at the optimal rate. Given the large computational requirements of leave-one-out cross-validation, we finally consider the problem of obtaining a fast approximate version of the leave-one-out cross-validation (ALO) estimator. We propose a general strategy for deriving formulas for such ALO estimators for penalized generalized linear models, and apply it to many common estimators such as the LASSO, SVM, nuclear norm minimization. The performance of such approximations are evaluated on simulated and real datasets.
Künstlerische Forschung im Bereich Jazz und Popularmusik an der Kunstuniversität Graz
Creators: name: Kahr, Michael
Publisher: name: Figshare
Year: 2019
Subjects: subject: 190409 Musicology and Ethnomusicology
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Zeitschrift für Hochschulentwicklung ZfHE10.1 (2015), 39–51, http://www.zfhe.at/.
Continuous and discrete transformations of a one-dimensional porous medium equation
Creators: name: Sophocleous, Christodoulos
Publisher: name: arXiv
Year: 1999
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the one-dimensional porous medium equation $u_t=\left (u^nu_x \right )_x+\fracμ{x}u^nu_x$. We derive point transformations of a general class that map this equation into itself or into equations of a similar class. In some cases this porous medium equation is connected with well known equations. With the introduction of a new dependent variable this partial differential equation can be equivalently written as a system of two equations. Point transformations are also sought for this auxiliary system. It turns out that in addition to the continuous point transformations that may be derived by Lie's method, a number of discrete transformations are obtained. In some cases the point transformations which are presented here for the single equation and for the auxiliary system form cyclic groups of finite order.
Revision of the crocodilians from the Oligocene of Monteviale, Italy, and the diversity of European eusuchians across the Eocene-Oligocene boundary
Creators: name: Macaluso, Loredana
name: Martin, Jeremy E.
name: Favero, Letizia Del
name: Delfino, Massimo
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Crocodilian remains from the Oligocene fossil locality of Monteviale, northeastern Italy, have historically been referred to different genera, but all material was recently assigned to Diplocynodon cf. D. ratelii Pomel, 1847. The purpose of the present work is to clarify the systematics of the known crocodilian remains from Monteviale. The largest collection is housed in Padua, Italy, but museums in La Rochelle, France; Basel, Switzerland; and London, United Kingdom reposit crocodilian remains of uncertain provenance but which are clearly from either Monte Bolca or Monteviale. Radiogenic strontium isotope ratios were measured on the embedding lignite of those specimens to investigate their provenance. The material belongs to the genus Diplocynodon, but it clearly differs from D. ratelii because the nasal elements are excluded from the external nares. Diplocynodon from Monteviale shares the same general suture pattern of the skull with the two species D. tormis and D. muelleri. Diplocynodon muelleri and specimens from Monteviale are also congruent in terms of shape and proportion of the supratemporal fenestrae. However, a revision of D. muelleri is currently needed; thus, the Monteviale species is identified as Diplocynodon cf. D. muelleri. In order to examine the relationships of Diplocynodon from Monteviale, a phylogenetic analysis was carried out and points to a particularly close relationship among D. muelleri, D. tormis, and the Diplocynodon from Monteviale. The occurrence of Asiatosuchus in Monteviale is rejected, supporting the hypothesis of a reduction in crocodilian diversity around the Eocene-Oligocene boundary in Europe.
Eragenia micans
Creators: name: Kurczewski, Frank E.
name: West, Rick C.
name: Waichert, Cecilia
name: Pitts, James P.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Eragenia
Eragenia micans

description: Eragenia micans (Fabricius)
PANAMA: Coclé Province, Antón Valle; 6 December 2021, 1137 EST; K. Squires. Host: Unidentified species (Anyphaenidae), adult or subadult female. The wasp straddled the immobilized ghost spider, dorsal side upward, grasping its left chelicera with her mandibles while resting on a large leaf (Squires 2021).
description: Published as part of Kurczewski, Frank E., West, Rick C., Waichert, Cecilia & Pitts, James P., 2022, Additional new and unusual host records for Western Hemisphere spider wasps (Hymenoptera: Pompilidae), pp. 1-32 in Insecta Mundi 2022 (928) on pages 12-13, DOI: 10.5281/zenodo.6533498
New perspectives on learning, inference, and control in brains and machines
Creators: Merel, Joshua Scott
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Machine learning
subject: Human-machine systems
subject: Neural networks (Computer science)--Statistical methods
subject: Brain-computer interfaces
subject: Neural circuitry
subject: Neurosciences
subject: FOS: Clinical medicine
subject: Statistics
subject: FOS: Mathematics

description: The work presented in this thesis provides new perspectives and approaches for problems that arise in the analysis of neural data. Particular emphasis is placed on parameter fitting and automated analysis problems that would arise naturally in closed-loop experiments. Part one focuses on two brain-computer interface problems. First, we provide a framework for understanding co-adaptation, the setting in which decoder updating and user learning occur simultaneously. We also provide a new perspective on intention-based parameter fitting and tools to extend this approach to higher dimensional decoders. Part two focuses on event inference, which refers to the decomposition of observed timeseries data into interpretable events. We present application of event inference methods on voltage-clamp recordings as well as calcium imaging, and describe extensions to allow for combining data across modalities or trials.
Billiard Systems in Three Dimensions: The Boundary Integral Equation and the Trace Formula
Creators: name: Sieber, Martin
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We derive semiclassical contributions of periodic orbits from a boundary integral equation for three-dimensional billiard systems. We use an iterative method that keeps track of the composition of the stability matrix and the Maslov index as an orbit is traversed. Results are given for isolated periodic orbits and rotationally invariant families of periodic orbits in axially symmetric billiard systems. A practical method for determining the stability matrix and the Maslov index is described.
description: LaTeX, 19 pages
News Media and the Authority of Grief: The Journalistic Treatment of Terrorism Victims as Political Activists
Creators: Kadmon Sella, Zohar
Publisher: name: Columbia University
Year: 2014
Subjects: Communication
Journalism
Terrorism--Press coverage
Victims of terrorism

description: The personal and national dimensions of terrorism victimhood lend the victims their unique moral authority and political legitimacy. The analysis of the news media coverage of victims' campaigns, on issues such as memorialization, criminal justice, hostage crises and peace activism, reveals that the more such campaigns are closer in time, space, and relevance to the attack that the victim-advocates underwent, the greater are their chances for positive coverage. Deferential coverage of victims' campaigns reflects journalism's cultural role as reinforcing common values and myths, including by way of portraying victims as heroes. Where victims' campaigns are less related to the physical memory of the attack and more concerned with the military or legal aspects of terrorism, journalists take on their informational role and employ traditional professional standards. Such standards include subjecting victims to potential criticism, and at the very least "balancing" their arguments with official views. In issues where the victims' arguments seem far removed from their personal experience, their influence over the news media is small. This range of journalistic notions is offered under the organizing mechanism of the Experience-Argument Scale. The two extreme ends of the Scale, the "deferential" end and the "disregarding" end, are where journalism's missions are in danger of compromise. Journalism at the "deferential" end is emotional, reluctant to bring forth opposing opinions, and in effect may contribute to policies that are driven more by trauma than by considered opinion. At the other end of the Scale, journalism is deaf to the victims, and fails to enrich policy debates with the lessons of their experience. The comparative examination of coverage in the U.S. and Israel illuminates the different relationships between press and government in these two cultures, and how local responses to victims reflect the particular local history of terrorism, and the particular notions of nationhood, solidarity and patriotism.
Next Generation Cloud Computing Architectures: Performance and Pricing
Creators: Mahajan, Kunal
Publisher: name: Columbia University
Year: 2021
Subjects: Computer science
Cloud computing
Computer industry--Prices
Computer network architectures

description: Cloud providers need to optimize the container deployments to efficiently utilize their network, compute and storage resources. In addition, they require an attractive pricing strategy for the compute services like containers, virtual machines, and serverless computing in order to attract users, maximize their profits and achieve a desired utilization of their resources. This thesis aims to tackle the twofold challenge of achieving high performance in container deployments and identifying the pricing for compute services. For performance, the thesis presents a transport-adaptive network architecture (D-TAIL) improving tail latencies. Existing transport protocols such as Homa, pFabric [1, 2] utilize Shortest Remaining Processing Time (SRPT) scheduling policy which is known to have starvation issues for long flows as SRPT prioritizes short flows. D-TAIL addresses this limitation by taking age of the flow in consideration while deciding the priority. D-TAIL shows a maximum reduction of 72%, 29.66% and 28.39% in 99th-percentile FCT for transport protocols like DCTCP, pFabric and Homa respectively. In addition, the thesis also presents a container deployment design utilizing peer-to-peer network and virtual file system with content-addressable storage to address the problem of cold starts in existing container deployment systems. The proposed deployment design increases compute availability, reduces storage requirement and prevents network bottlenecks. For pricing, the thesis studies the tradeoffs between serverless computing (SC) and traditional cloud computing (virtual machine, VM) using realistic cost models, queueing theoretic performance models, and a game theoretic formulation. For customers, we identify their workload distribution between SC and VM to minimize their cost while maintaining a particular performance constraint. For cloud provider, we identify the SC and VM prices to maximize its profit. The main result is the identification and characterization of three optimal operational regimes for both customers and the provider, that leverage either SC or VM only, or both, in a hybrid configuration.
Optimal mode matching in cavity optomagnonics
Creators: name: Sharma, Sanchar
name: Rameshti, Babak Zare
name: Blanter, Yaroslav M.
name: Bauer, Gerrit E. W.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Inelastic scattering of photons is a promising technique to manipulate magnons but it suffers from weak intrinsic coupling. We theoretically discuss an idea to increase optomagnonic coupling in optical whispering gallery mode cavities, by generalizing previous analysis to include the exchange interaction. We predict that the optomagnonic coupling constant to surface magnons in yttrium iron garnet (YIG) spheres with radius $300\,\mathrmμ$m can be up to $40$ times larger than that to the macrospin Kittel mode. Whereas this enhancement falls short of the requirements for magnon manipulation in YIG, nanostructuring and/or materials with larger magneto-optical constants can bridge this gap.
description: Comments welcome
Using multispectral remote sensing to monitor aquatic vegetation in ponds at a reclaimed mine site
Creators: name: Borstad, Gary A.
name: Martinez, Mar
name: Larratt, Heather M.
name: Kerr, Randy
name: Willis, Peter
name: Richards, Mark
Publisher: name: The University of British Columbia
Year: 2009

description: Multispectral remote sensing is being investigated to monitor mine-site reclamation at Highland Valley Copper, a large copper-molybdenum mine in southern British Columbia. Two examples of the application of aerial mapping to the aquatic portions of the mine are presented here: Trojan Pond, a deep tailings pond that supports a small fishery, and Highmont Tailings Pond, a shallow tailings pond and wetland. Trojan Pond has a narrow band (1 to 3 m), of benthic aquatic vegetation around its shore, because it has a rapidly shoaling littoral zone, with very little shallow area – quite typical for a shallow, small lake in this region. By contrast, Highmont Pond is shallow and supports extensive benthic vegetation that was impossible to properly sample from the ground because a very soft bottom limits access. This vegetation was well mapped by the multispectral imagery in 2001 and 2002, and was only sampled from the ground after the pond was drained in 2003 – at which time the abundant vegetation in the centre of the pond came as a surprise to ground biologists.
Building Free Energy Functional from Atomically-Resolved Imaging: Atomic Scale Phenomena in La-doped BiFeO3
Creators: name: Morozovska, Anna N.
name: Eliseev, Eugene A.
name: Chen, Deyang
name: Nelson, Christopher T.
name: Kalinin, Sergei V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Scanning Transmission Electron Microscopy (STEM) has enabled mapping of atomic structures of solids with sub-pm precision, providing insight to the physics of ferroic phenomena and chemical expansion. However, only a subset of information is available, due to projective nature of imaging in the beam direction. Correspondingly, the analysis often relies on the postulated known form of macroscopic Landau-Ginzburg energy, and some predefined relationship between experimentally determined atomic coordinates and the order parameter field. Here, we propose an approach for exploring the structure of ferroics using reduced order parameter models constructed based on experimental data only. We develop a four sublattices model (FSM) for the analytical description of A-cation displacement in (anti)ferroelectric-antiferrodistortive perovskites of ABO3-type. The model describes the displacements of cation A in four neighboring unit cells and determines the conditions of different structural phases appearance and stability in ABO3. We show that FSM explains the coexistence of rhombohedral (R), orthorhombic (O) and spatially modulated (SM) phases, observed by atomic-resolution STEM in La-doped BiFeO3. Using this approach, we atomically resolve and theoretically model the sublattice asymmetry inherent to the case of the A-site La/Bi cation sublattice in LaxBi1-xFeO3 polymorphs. This approach allows exploring the ferroics behaviors from experimental data only, without additional assumptions on the nature of the order parameter.
description: 20 pages, 4 figures, supplementary materials
Next Generation Silicon Photonic Transceiver: From Device Innovation to System Analysis
Creators: Guan, Hang
Publisher: name: Columbia University
Year: 2018
Subjects: Electrical engineering
Optics
Communication
Photonics
Radio--Transmitter-receivers

description: Silicon photonics is recognized as a disruptive technology that has the potential to reshape many application areas, for example, data center communication, telecommunications, high-performance computing, and sensing. The key capability that silicon photonics offers is to leverage CMOS-style design, fabrication, and test infrastructure to build compact, energy-efficient, and high-performance integrated photonic systems-on- chip at low cost. As the need to squeeze more data into a given bandwidth and a given footprint increases, silicon photonics becomes more and more promising. This work develops and demonstrates novel devices, methodologies, and architectures to resolve the challenges facing the next-generation silicon photonic transceivers. The first part of this thesis focuses on the topology optimization of passive silicon photonic devices. Specifically, a novel device optimization methodology - particle swarm optimization in conjunction with 3D finite-difference time-domain (FDTD), has been proposed and proven to be an effective way to design a wide range of passive silicon photonic devices. We demonstrate a polarization rotator and a 90◦ optical hybrid for polarization-diversity and phase-diversity communications - two important schemes to increase the communication capacity by increasing the spectral efficiency. The second part of this thesis focuses on the design and characterization of the next- generation silicon photonic transceivers. We demonstrate a polarization-insensitive WDM receiver with an aggregate data rate of 160 Gb/s. This receiver adopts a novel architecture which effectively reduces the polarization-dependent loss. In addition, we demonstrate a III-V/silicon hybrid external cavity laser with a tuning range larger than 60 nm in the C-band on a silicon-on-insulator platform. A III-V semiconductor gain chip is hybridized into the silicon chip by edge-coupling to the silicon chip. The demonstrated packaging method requires only passive alignment and is thus suitable for high-volume production. We also demonstrate all silicon-photonics-based transmission of 34 Gbaud (272 Gb/s) dual-polarization 16-QAM using our integrated laser and silicon photonic coherent transceiver. The results show no additional penalty compared to commercially available narrow linewidth tunable lasers. The last part of this thesis focuses on the chip-scale optical interconnect and presents two different types of reconfigurable memory interconnects for multi-core many-memory computing systems. These reconfigurable interconnects can effectively alleviate the memory access issues, such as non-uniform memory access, and Network-on-Chip (NoC) hot-spots that plague the many-memory computing systems by dynamically directing the available memory bandwidth to the required memory interface.
CHROMATIC HARMONY IN THE MUSIC OF HERBIE HANCOCK AND CLARE FISCHER
Creators: name: Kahr
Publisher: name: Figshare
Year: 2019
Subjects: subject: 190409 Musicology and Ethnomusicology
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Jazzforschung / Jazz Research46 (2018), 73–90.
Priocnemella hexagona
Creators: name: Kurczewski, Frank E.
name: West, Rick C.
name: Waichert, Cecilia
name: Pitts, James P.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Priocnemella
Priocnemella hexagona

description: Priocnemella hexagona (Fox)
 BRAZIL: Rondônia State, National Forest of Jamari; 23 May 2021; P. P. M. Nascimento. Host: Phoneutria ? fera Perty (Ctenidae), juvenile. The wasp straddled and carried the delimbed paralyzed banana spider, dorsal side upward, grasping the base of its chelicera with her mandibles. She walked over leaf litter, then, holding the spider, disappeared into a small hole in the ground (Fig. 12; Nascimento 2021; Nascimento, Machadinho d’Oeste, State of Rondônia, Brazil, 2021 pers. comm.).
description: Published as part of Kurczewski, Frank E., West, Rick C., Waichert, Cecilia & Pitts, James P., 2022, Additional new and unusual host records for Western Hemisphere spider wasps (Hymenoptera: Pompilidae), pp. 1-32 in Insecta Mundi 2022 (928) on page 13, DOI: 10.5281/zenodo.6533498
Hastings, Haestingaceaster and Haestingaport: A Question of Identity
Creators: name: Coombes, Pamela
name: Lyne, M A B
Publisher: name: Archaeology Data Service
Year: 2021

description: Sussex Archaeological Collections, 133, 213-224
description: Three places named in early documentary sources, the burh of Haestingaceaster, Haestingaport where Duke William constructed a castle before the battle of Hastings, and the town of Hastings have been assumed to be synonymous. There is, however, little or no tangible evidence for any significant pre-Conquest settlement at Hastings . Newly documented archaeological evidence from Pevensey Castle suggests that there was substantial settlement within the Roman walls throughout the middle and late Saxon period while topographical evidence suggests that Hastings was an unlikely site for an Alfredian burh. It is proposed that the burh of Haestingaceaster was situated within the Roman walls of Pevensey Castle and that the borough of Hastings was a mid-llth century or a post-Conquest creation. The name of Haestingaport could apply to either of these settlements.
High Order Edge Sensors with $\ell^1$ Regularization for Enhanced Discontinuous Galerkin Methods
Creators: name: Glaubitz, Jan
name: Gelb, Anne
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 65M70, 65M12, 65K10, 76L05

description: This paper investigates the use of $\ell^1$ regularization for solving hyperbolic conservation laws based on high order discontinuous Galerkin (DG) approximations. We first use the polynomial annihilation method to construct a high order edge sensor which enables us to flag troubled elements. The DG approximation is enhanced in these troubled regions by activating $\ell^1$ regularization to promote sparsity in the corresponding jump function of the numerical solution. The resulting $\ell^1$ optimization problem is efficiently implemented using the alternating direction method of multipliers. By enacting $\ell^1$ regularization only in troubled cells, our method remains accurate and efficient, as no additional regularization or expensive iterative procedures are needed in smooth regions. We present results for the inviscid Burgers' equation as well as a nonlinear system of conservation laws using a nodal collocation-type DG method as a solver.
Ni de Aquí, Ni de Allá: Sense of Belonging Among Latinx DACA Recipient University Students
Creators: Calle, Cassandra Zarina
Publisher: name: Columbia University
Year: 2021
Subjects: Hispanic American college students--Psychology
Public policy (Law)
Hispanic Americans--Mental health
Self-efficacy
Belonging (Social psychology)
Immigrant children

description: This study was conducted in order to more accurately understand the relationship between sense of belonging in the U.S., self-efficacy, outcome expectations, and mental health and well-being for Latinx DACA recipient college students in the United States. Additionally, results were intended to assist in providing critical information regarding: (a) adequate support to Latinx DACA recipient college students, (b) informed consulting for policy shifts and changes with legal status, and (c) ethical psychological care to Latinx DACA recipient individuals. Ten participants were interviewed and given self-report measures (BDI and BAI) in order to glean insight on the aforementioned relationship. Data analysis included consensual qualitative research (CQR) analysis for interview transcripts and averages of self-report measures as compared to general university student population scores (BDI and BAI). Qualitative results are organized under eight overarching themes. Clinical implications, considerations for immigration policies, and considerations for university policies are discussed and explored.
A duplicate column study of arsenic, cadmium and zinc treatment in an anaerobic bioreactor based on a system operated by Teck Cominco in Trail, British Columbia
Creators: name: Kawaja, Jonathan D. E.
name: Morin, Katy
name: Gould, W. Douglas
Publisher: name: The University of British Columbia
Year: 2009

description: The study’s objective was to identify and profile the treatment mechanisms within an anaerobic bioreactor (ABR) designed to remove high concentrations of arsenic, cadmium and zinc from contaminated drainage. The experiment used duplicate 15.6 L ABR columns, containing limestone and an organic substrate. The design and operation parameters were based on a larger field scale system operated by Nature Works Remediation for Teck Cominco in Trail, British Columbia. After an acclimatization period, the experiment was conducted for six months at various hydraulic loadings intended to evaluate optimal and stressed conditions, as well as, the ABR’s ability to re-establish optimal conditions. The study suggested that cadmium and zinc were removed as metal sulphides after 20 hours residence time. The behaviour of arsenic was independent of cadmium and zinc, and the majority was removed within 7 hours residence time. This was attributed to its adsorption to iron. Correlations of arsenic and iron concentrations throughout the organic substrate demonstrated that adsorption was inconsistent and unreliable as a treatment mechanism without the subsequent oxic conditions at the column’s headwater. Considerations for the field were identified for treatment, management of hydraulic loadings, and maintenance of an ABR.
The Jazz Institutes in Graz Pioneers in Academic Jazz and their Impact on Local Identity
Creators: name: Kahr
Publisher: name: Figshare
Year: 2019
Subjects: subject: 190409 Musicology and Ethnomusicology
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: European Journal of Musicology 17.1(2018), 45–59.
Measurement of the $e^+e^- \to π^+π^-π^0η$ cross section below $\sqrt{s}=2$ GeV
Creators: name: Achasov, M. N.
name: Barnyakov, A. Yu.
name: Beloborodov, K. I.
name: Berdyugin, A. V.
name: Bogdanchikov, A. G.
name: Botov, A. A.
name: Dimova, T. V.
name: Druzhinin, V. P.
name: Golubev, V. B.
name: Kardapoltsev, L. V.
name: Kharlamov, A. G.
name: Korol, A. A.
name: Koshuba, S. V.
name: Kovrizhin, D. P.
name: Kupich, A. S.
name: Litvinov, R. A.
name: Lysenko, A. P.
name: Martin, K. A.
name: Melnikova, N. A.
name: Muchnoy, N. Yu.
name: Obrazovsky, A. E.
name: Pakhtusova, E. V.
name: Perevedentsev, E. A.
name: Pugachev, K. V.
name: Serednyakov, S. I.
name: Shatunov, P. Yu.
name: Shatunov, Yu. M.
name: Shtol, D. A.
name: Silagadze, Z. K.
name: Skrinsky, A. N.
name: Surin, I. K.
name: Tikhonov, Yu. A.
name: Vasiljev, A. V.
name: Zemlyansky, I. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The process $e^+e^- \to π^+π^-π^0η$ is studied in the center-of-mass energy region below 2 GeV with the SND detector at the VEPP-2000 $e^+e^-$ collider. The four intermediate states contribute to this process: $ωη$, $ϕη$, $a_0(980)ρ$, and a structureless $π^+π^-π^0η$ state. We measure the total $e^+e^- \to π^+π^-π^0η$ cross section and the cross sections for its components: $ωη$, $ϕη$, and a sum of $a_0(980)ρ$ and the structureless state. Our results are in agreement with previous measurements and have comparable or better accuracies.
description: 17 pages, 11 figures, 3 tables. arXiv admin note: text overlap with arXiv:1607.00371
Nietzsche and the Pathologies of Meaning
Creators: Forster, Jeremy James
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Meaning (Philosophy)
subject: Nihilism (Philosophy)
subject: Philosophy
subject: FOS: Philosophy, ethics and religion

description: My dissertation details what Nietzsche sees as a normative and philosophical crisis that arises in modern society. This crisis involves a growing sense of malaise that leads to large-scale questions about whether life in the modern world can be seen as meaningful and good. I claim that confronting this problem is a central concern throughout Nietzsche’s philosophical career, but that his understanding of this problem and its solution shifts throughout different phases of his thinking. Part of what is unique to Nietzsche’s treatment of this problem is his understanding that attempts to imbue existence with meaning are self-undermining, becoming pathological and only further entrenching the problem. Nietzsche’s solution to this problem ultimately resides in treating meaning as a spiritual need that can only be fulfilled through a creative interpretive process.
Are the laws of entanglement theory thermodynamical?
Creators: name: Horodecki, Michal
name: Oppenheim, Jonathan
name: Horodecki, Ryszard
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We argue that on its face, entanglement theory satisfies laws equivalent to thermodynamics if the theory can be made reversible by adding certain bound entangled states as a free resource during entanglement manipulation. Subject to plausible assumptions, we prove that this is not the case in general, and discuss the implications of this for the thermodynamics of entanglement.
description: 4 pages, 1 figure, Revtex4; to appear in Phys. Rev. Lett
Finite functions and the necessary use of large cardinals
Creators: name: Friedman, Harvey M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics

description: We present a coherent collection of finite mathematical theorems some of which can only be proved by going well beyond the usual axioms for mathematics. The proofs of these theorems illustrate in clear terms how one uses the well studied higher infinities of abstract set theory called large cardinals in an essential way in order to derive results in the context of the natural numbers. The findings raise the specific issue of what consitutes a valid mathematical proof and the general issue of objectivity in mathematics in a down to earth way. Large cardinal axioms, which go beyond the usual axioms for mathematics, have been commonly used in abstract set theory since the 1960's. We believe that the results reported on here are the early stages of an evolutionary process in which new axioms for mathematics will be commonly used in an essential way in the more concrete parts of mathematics.
description: 91 pages, published version
Agenioideus (Enbanksia) accoleus subsp. accoleus
Creators: name: Kurczewski, Frank E.
name: West, Rick C.
name: Waichert, Cecilia
name: Pitts, James P.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pompilidae
Agenioideus
Agenioideus accoleus
Agenioideus (enbanksia) accoleus accoleus (banks)

description: Agenioideus (Enbanksia) accoleus accoleus (Banks)
 COLOMBIA: Antioquia Department, Bolívar, Finca La Llorona; 2 April 2021, 1053; S. Berrio (Bioexploradores Farallones). Host: Steatoda ? nobilis (Thorell) (Noble false widow) (Theridiidae), adult female. The wasp grasped the immobilized spider on the ground by the base of its first or second left coxa or right coxa-trochanter joint with her mandibles. Later, she stood next to the prey cleaning her antenna (Berrio 2021).
description: Published as part of Kurczewski, Frank E., West, Rick C., Waichert, Cecilia & Pitts, James P., 2022, Additional new and unusual host records for Western Hemisphere spider wasps (Hymenoptera: Pompilidae), pp. 1-32 in Insecta Mundi 2022 (928) on page 13, DOI: 10.5281/zenodo.6533498
Synchronization and Control of Spatiotemporal Chaos using Time-Series Data from Local Regions
Creators: name: Parekh, Nita
name: Kumar, V. Ravi
name: Kulkarni, B. D.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this paper we show that the analysis of the dynamics in localized regions, i.e., sub-systems can be used to characterize the chaotic dynamics and the synchronization ability of the spatiotemporal systems. Using noisy scalar time-series data for driving along with simultaneous self-adaptation of the control parameter representative control goals like suppressing spatiotemporal chaos and synchronization of spatiotemporally chaotic dynamics have been discussed.
description: File in Latex, Figures may be obtained on request at the following address - ravi@ems.ncl.res.in
Figshare for Institutions and Elsevier Pure Integration: A case study from the University of Amsterdam (UvA) and Amsterdam University of Applied Sciences (AUAS)
Creators: name: Uittenbogaard, Matthieu
name: Hardeman, Megan
Publisher: name: Figshare
Year: 2019
Subjects: subject: Library and Information Studies
subject: FOS: Media and communications

description: This case study outlines the first one-way connection between the University of Amsterdam and Amsterdam University of Applied Sciences's instance of Elsevier Pure, a current research information system (CRIS), and their research data repository, powered by Figshare for Institutions.
Nitrogen fixing trees in the United States: N flux, effect on forest demographics, and nutrient transfer model
Creators: Staccone, Anika Petach
Publisher: name: Columbia University
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Nitrogen--Fixation
subject: Forests and forestry
subject: Robinia
subject: Alder

description: Patterns and controls of net primary production (NPP) remain a critical question in ecology especially as climate modeling efforts expand. Nutrients, particularly nitrogen (N), can regulate NPP, which couples the N and C cycles. Biological nitrogen fixation (BNF) is the primary natural pathway by which new N enters ecosystems. The magnitude of the natural BNF flux is still not well constrained and the effect of this new N on forest demography and C storage is not well understood. In chapter 1 we use tree census data and two approaches of estimating BNF to make an estimate of the total N fixed by trees across the U.S.: 0.30-0.88 Tg N yr-1 (1.4-3.4 kg N ha-1 yr-1), smaller than previously expected and on par with N inputs from understory or asymbiotic BNF and less than inputs from N deposition. The tree BNF input is dominated by two tree genera: Robinia and Alnus. In chapter 2 we use mixed effect models of forest census data to show that N-fixing trees have no net effect on forest biomass accumulate rate, indicating that though they can fertilize forests on long timescales, during the course of their lives the competitive influences they exert on neighbors balance any fertilization effect they may have. However, the net effect of N-fixing trees on forest development and carbon storage depends on local factors and can be significantly facilitative in contexts where N-fixers are less competitive or when neighbors occupy different forest niches. In chapter 3 we develop a theoretical model which shows lateral leaf litter is a plausible mechanism for observed N-fixer effects, wherein the percent of litter nutrients shared with neighbors can range from almost 0% for small trees to >90% for large isolated trees in low wind, fast decomposition environments. Litter nutrients spread more in windy environments or from trees whose leaf litter falls farther from trees and diffuses more quickly. In sum, N-fixing trees play an important role in temperate forests representing an important N input, however, the flux is smaller than previously expected and the fertilization effect of N-fixing trees is not observed during the census interval.
Artistic Research in Jazz: A Case Study and Potential Developments
Creators: name: Kahr
Publisher: name: Figshare
Year: 2019
Subjects: subject: 190409 Musicology and Ethnomusicology
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Music and Sonic Arts: Theories and Practice. Cambridge Scholars Publishing, eds. Mine Dogantan-Dack and John Dack (2018), 184–199.