cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Final Preliminary Assessment NAES Lakehurst - Proving Grounds, New Jersey
Creators: name: Malcolm Pirnie, Inc.
Publisher: name: Malcolm Pirnie, Inc.
Year: 2006
Subjects: Lakehurst, NJ
Jackson Township
New Jersey (State / Territory)
Ocean (County)
Manchester Township
20th Century
Historic
Building No. 1/ Hanger 1
Hindenburg Crash Site
Military Structure
House
Hanger
Helium Purification Plant
Historic Church / Religious Structure
Military Support Facilities
Wood
Glass
Building Materials
Metal
Unexploded Ordinance
Proving Ground
Cultural Resource Survey
Geophysical Investigation
Integrated Cultural Resources Management Plan
Installation Survey Report
Archaeological Overview
Architectural Survey
Geophysical Survey
Reconnaissance / Survey
Heritage Management
Records Search / Inventory Checking

description: The Department of Defense (DoD) has established the Military Munitions Response Program under the Defense Environmental Restoration Program (DERP) to address munitions and explosives of concern (MEC) (including unexploded ordnance [UXO] and discarded military munitions) and munitions constituents (MC) at other than operational military ranges and other sites. Closed, transferred, and transferring military ranges and sites not located on an operational range are considered other than operational. This report addresses other than operational ranges and sites at an active installation.

This report represents a Preliminary Assessment (PA) for the Naval Air Engineering Station (NAES) Lakehurst - Proving Grounds, New Jersey. The DoD, United States Navy, and United States Environmental Protection Agency guidance for conducting and documenting PAs were followed and tailored, where appropriate, to address the unique aspects of MEC and MC.

Based on the results of the data collection process, six areas of the Proving Grounds are characterized as Known MEC Areas.The areas of the Proving Grounds surrounding historical ranges, impact areas, and target areas are characterized as Suspect MEC Areas. Suspect MEC Areas comprise 3,196 acres. These areas include all property contained within Proving Grounds boundaries as previously delineated by NAES Lakehurst (excluding the Known MEC Areas) and some property within the installation located outside of the previously delineated Proving Grounds boundaries. Areas of the Proving Grounds that are characterized as Areas Not Suspected to Contain MEC are located outside of the established ranges, impact areas, and target areas. The Areas Not Suspected to Contain MEC comprise 13,369 acres and include land located in nonmilitary residential areas, Fort Dix, and forest management areas.

This is the final preliminary assessment for Naval Air Engineering Station Lakehurst and includes all documents involved in the assessment including inventory sheets, correspondences, and project source data throughout the naval station's history. Some reports within the final preliminary assessment may also have individual files within the Lakehurst Air Force Base Archaeology and Cultural Resources Archive collection.
Novel Source of Nonlocality in the Optical Model
Creators: name: Jaghoub, M. I.
name: Hassan, M. F.
name: Rawitscher, G. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we fit $neutron$ - $^{12}C$ elastic scattering angular distributions in the energy range 12 to 20 MeV, by adding a velocity dependent term to the optical potential. This term introduces a wave function gradient, whose coefficient is real and position dependent, and which represents a nonlocality. We pay special attention to the prominent backscattering minima which depend sensitively on the incident energies, and which are a tell-tale of nonlocalities. Reasonable fits to the analyzing power data are also obtained as a by-product. All our potentials have the form of conventional Woods - Saxon shapes or their derivatives. The number of our parameters (12) is smaller than the number for other local optical potentials, and they vary monotically with energy, while the strengths of the real and imaginary parts of the central potential are nearly constants. Our nonlocality is in contrast to other forms of nonlocalities introduced previously.
description: 19 pages, 6 figures, two tables, manuscript
Normalizing ChIP and ATAC sequencing data for differential analysis
Creators: name: Stark, Rory
Publisher: name: F1000 Research Limited
Year: 2020

description: Issues in normalizing ChIP-seq and ATAC-seq data for a peak-based (DiffBind) differential analysis. Discusses within-library normalization to controls, and between-library normalization, using background, spike-in, or parallel factor reads.

 Note: this deck includes some slides that were not presented at the live talk due to time constraints.
Connecting Solutions in Open String Field Theory with Singular Gauge Transformations
Creators: name: Erler, Theodore
name: Maccaferri, Carlo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that any pair of classical solutions of open string field theory can be related by a formal gauge transformation defined by a gauge parameter $U$ without an inverse. We investigate how this observation can be used to construct new solutions. We find that a choice of gauge parameter consistently generates a new solution only if the BRST charge maps the image of $U$ into itself. When this occurs, we argue that $U$ naturally defines a star algebra projector which describes a surface of string connecting the boundary conformal field theories of the classical solutions related by $U$. We also note that singular gauge transformations give the solution space of open string field theory the structure of a category, and we comment on the physical interpretation of this observation.
description: V2: minor improvements, added citations
title: Living scores: a portfolio of orally-transmitted experimental music compositions
Creators: name: Nickel, L
Publisher: name: Bath Spa University
Year: 2017

description: This commentary reflects on a portfolio containing five of my recent orally-transmitted experimental music compositions created between fall 2013 and fall 2016. These living scores investigate transmission, community, orality and forgetting, which are the major themes of my original work. This commentary relates particularly to two main research questions: 1) what happens to the traditional practices and relationships surrounding composers and performers if the material aspect of the musical score is removed; and 2) what musical materials and processes are particularly suited to an orally-transmitted compositional method? After a brief introduction in Chapter 1, Chapter 2 provides context to the portfolio, exploring the terms experimental music and living scores. The term living scores has been used by a variety of artists in contexts ranging from dance collaborations to digital media. A new definition of living scores is proposed based on a synthesis of these existing uses to mean contexts in which all compositional instructions are transmitted, rather than fixed. Living scores are essentially participatory -- they foreground collaboration and encourage the formation of micro-communities. Because they eschew written notation, living scores allow the act of forgetting to become a vital part of the creative process. Composers such as Eliane Radigue, Meredith Monk, and Yoko Ono are discussed in this new context. Chapters 3 and 4 discuss my work within the paradigm of living scores. In Chapter 3, after a typical transmission of my work is outlined, aspects of oral and digital transmission are detailed, including the media, length, density and frequency of transmissions. Many of these aspects are discussed in relation to the act of forgetting, which through this creative work can be seen as a productive feature of artistic creation. In Chapter 4, the musical material of the portfolio is discussed, with an emphasis on the use and transformation of borrowed musical source material. A solution for the integration of the collaborative process into performances of these works is proposed: partial transmissions overlapping with the performances. A brief conclusion outlines the possibility for future research that explores other modes of transmission, further musical explorations and repeated use of this compositional method.
Influence of Atmospheric Turbulence on Optical Communications using Orbital Angular Momentum for Encoding
Creators: name: Malik, Mehul
name: O'Sullivan, Malcolm
name: Rodenburg, Brandon
name: Mirhosseini, Mohammad
name: Leach, Jonathan
name: Lavery, Martin P. J.
name: Padgett, Miles J.
name: Boyd, Robert W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe an experimental implementation of a free-space 11-dimensional communication system using orbital angular momentum (OAM) modes. This system has a maximum measured OAM channel capacity of 2.12 bits/photon. The effects of Kolmogorov thin-phase turbulence on the OAM channel capacity are quantified. We find that increasing the turbulence leads to a degradation of the channel capacity. We are able to mitigate the effects of turbulence by increasing the spacing between detected OAM modes. This study has implications for high-dimensional quantum key distribution (QKD) systems. We describe the sort of QKD system that could be built using our current technology.
description: 6 pages, 5 figures
GenomicSuperSignature: interpretation of RNAseq experiments through robust, efficient comparison to public databases
Creators: name: Sehyun Oh
name: Davis, Sean
name: Waldron, Levi
Publisher: name: F1000 Research Limited
Year: 2020

description: Thousands of RNA sequencing profiles have been deposited in public archives, yet remain unused for the interpretation of most newly performed experiments. To fill this gap, we introduce the GenomicSuperSignature package, which provides a pre-build index, a collection of replicable axes of variations (RAVs), to connect different prior knowledge. RAVs were constructed from large public datasets through dimensional reduction and clustering, and further annotated with details from the originating studies and gene set enrichment analysis. GenomicSuperSignature links, in negligible compute time, relevant studies from the public literature, and provides interpretation of potentially subtle biological signals through gene set enrichment analysis of RAVs and MeSH term analysis of matching studies. We demonstrate RAVs associated with phenotype can provide insight into weak or indirectly measured biological attributes in a new study by leveraging accumulated data from published datasets. In conclusion, GenomicSuperSignature enables researchers to analyze new data in the context of existing databases with minimal computing resources.
Digital Canons and Catalogs of Fragmentary Literature
Creators: name: Berti, Monica
Publisher: name: Zenodo
Year: 2020
Subjects: NER
NLP
ancient Greek
CITE Architecture

description: This is the hand-out for the conference Fragmente einer fragmentierten Welt (Gespräche zur Problematisierung eines traditionellen Begriffes in der modernen klassisch-philologischen Forschung) held at the University of Trier on November 27-28, 2020. The hand-out describes the presentation held at the conference. This presentation is about a DFG funded project on NER for ancient Greek (DFG project nr. 434173983).
description: DFG funded project nr. 434173983
Seeing in the dark -- I. Multi-epoch alchemy
Creators: name: Huff, Eric M.
name: Hirata, Christopher M.
name: Mandelbaum, Rachel
name: Schlegel, David
name: Seljak, Uros
name: Lupton, Robert H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Weak lensing by large-scale structure is an invaluable cosmological tool given that most of the energy density of the concordance cosmology is invisible. Several large ground-based imaging surveys will attempt to measure this effect over the coming decade, but reliable control of the spurious lensing signal introduced by atmospheric turbulence and telescope optics remains a challenging problem. We address this challenge with a demonstration that point-spread function (PSF) effects on measured galaxy shapes in current ground-based surveys can be corrected with existing analysis techniques. In this work, we co-add existing Sloan Digital Sky Survey imaging on the equatorial stripe in order to build a data set with the statistical power to measure cosmic shear, while using a rounding kernel method to null out the effects of the anisotropic PSF. We build a galaxy catalogue from the combined imaging, characterise its photometric properties, and show that the spurious shear remaining in this catalogue after the PSF correction is negligible compared to the expected cosmic shear signal. We identify a new source of systematic error in the shear-shear auto-correlations arising from selection biases related to masking. Finally, we discuss the circumstances in which this method is expected to be useful for upcoming ground-based surveys that have lensing as one of the science goals, and identify the systematic errors that can reduce its efficacy.
description: 24 pages, 14 figures. Part 1 of 2; to be submitted to MNRAS
Design of star-shaped organoiron oligomers with azo chromophores
Creators: name: Ding, Man
Publisher: name: University of British Columbia
Year: 2011

description: The synthesis and characterization of novel star-shaped oligomers containing cationic η⁶-chloroarene-η⁵-cyclopentadienyliron(II) complexes functionalized with azo chromophores were described in the thesis. Star-shaped macromolecules and dendrimers are of great interest for their application in light-harvesting systems, drug delivery, catalysis, and solvents. The incorporation of cationic η⁶-chloroarene-η⁵-cyclopentadienyliron moieties can enhance solubility and facilitate nucleophilic aromatic substitution and addition reactions due to the intense electron-withdrawing ability of the iron center. On the other hand, the azo dye chromophore in the oligomers has many applications due to its unique photophysical properties and acid-sensing capabilities. Controlled synthetic methods involving both convergent and divergent approaches were employed to give distinct symmetrical branches that alternate between organoiron complexes and azobenzene moieties. Preparation of these molecules was achieved via metal-mediated nucleophilic aromatic substitutions and Steglich esterifications. These oligomers and their precursors were characterized through nuclear magnetic resonance spectroscopy, infrared spectroscopy, ultraviolet-visible spectroscopy and cyclic voltammetry.
Optical and dc conductivities of cuprates: Spin-fluctuation scattering in the t-J model
Creators: name: Vladimirov, A. A.
name: Ihle, D.
name: Plakida, N. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A microscopic theory of the electrical conductivity $σ(ω)$ within the t-J model is developed. An exact representation for $σ(ω)$ is obtained using the memory-function technique for the relaxation function in terms of the Hubbard operators, and the generalized Drude law is derived. The relaxation rate due to the decay of charge excitations into particle-hole pairs assisted by antiferromagnetic spin fluctuations is calculated in the mode-coupling approximation. Using results for the spectral function of spin excitations calculated previously, the relaxation rate and the optical and dc conductivities are calculated in a broad region of doping and temperatures. The reasonable agreement of the theory with experimental data for cuprates proves the important role of spin-fluctuation scattering in the charge dynamics.
description: 13 pages,15 figures, v.2, publication reference
Digital Methods in Classical Studies
Creators: name: Berti, Monica
Publisher: name: Zenodo
Year: 2019
Subjects: Digital Philology
Ancient Greek
Latin
Linked Open Data

description: Slides of the talk given by Monica Berti on July 3, 2019 for the Ringvorlesung Sommersemester 2019 (Transdisziplinäre Aspekte Digitaler Methodik in den Geistes- und Kulturwissenschaften) at the IEG | Leibniz-Insitut für Europäische Geschichte, Mainz.
The fate of Cyg X-1: an empirical lower limit on BH-NS merger rate
Creators: name: Belczynski, Krzysztof
name: Bulik, Tomasz
name: Bailyn, Charles
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The recent distance determination allowed precise estimation of the orbital parameters of Cyg X-1, which contains a massive 14.8 Msun BH with a 19.2 Msun O star companion. This system appears to be the clearest example of a potential progenitor of a BH-NS system. We follow the future evolution of Cyg X-1, and show that it will soon encounter a Roche lobe overflow episode, followed shortly by a Type Ib/c supernova and the formation of a NS. It is demonstrated that in majority of cases (70%) the supernova and associated natal kick disrupts the binary due to the fact that the orbit expanded significantly in the Roche lobe overflow episode. In the reminder of cases (30%) the newly formed BH-NS system is too wide to coalesce in the Hubble time. Only sporadically (1%) a Cyg X-1 like binary may form a coalescing BH-NS system given a favorable direction and magnitude of the natal kick. If Cyg X-1 like channel (comparable mass BH-O star bright X-ray binary) is the only or dominant way to form BH-NS binaries in the Galaxy we can estimate the empirical BH-NS merger rate in the Galaxy at the level of 0.001 per Myr. This rate is so low that the detection of BH-NS systems in gravitational radiation is highly unlikely, generating Advanced LIGO/VIRGO detection rates at the level of only 1 per century. If BH-NS inspirals are in fact detected, it will indicate that the formation of these systems proceeds via some alternative and yet unobserved channels.
description: 5 pages, ApJ Letters (accepted)
Linked and knotted beams of light, conservation of helicity and the flow of null electromagnetic fields
Creators: name: Irvine, William T. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Maxwell's equations allow for some remarkable solutions consisting of pulsed beams of light which have linked and knotted field lines. The preservation of the topological structure of the field lines in these solutions has previously been ascribed to the fact that the electric and magnetic helicity, a measure of the degree of linking and knotting between field lines, are conserved. Here we show that the elegant evolution of the field is due to the stricter condition that the electric and magnetic fields be everywhere orthogonal. The field lines then satisfy a `frozen field' condition and evolve as if they were unbreakable filaments embedded in a fluid. The preservation of the orthogonality of the electric and magnetic field lines is guaranteed for null, shear-free fields such as the ones considered here by a theorem of Robinson. We calculate the flow field of a particular solution and find it to have the form of a Hopf fibration moving at the speed of light in a direction opposite to the propagation of the pulsed light beam, a familiar structure in this type of solution. The difference between smooth evolution of individual field lines and conservation of electric and magnetic helicity is illustrated by considering a further example in which the helicities are conserved, but the field lines are not everywhere orthogonal. The field line configuration at time t=0 corresponds to a nested family of torus knots but unravels upon evolution.
Inter-pocket pairing and gap symmetry in Fe-based superconductors with only electron pockets
Creators: name: Khodas, M.
name: Chubukov, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Pairing symmetry in recently discovered Fe-based metallic superconductors AFe$_2$Se$_2$ (A = K, Rb, Cs) with high transition temperature $T_c \sim 40$ K is currently a subject of intensive debates. These systems contain only electron pockets, according to photoemission, and differ from the majority of Fe-based superconductors in which both electron and hole pockets are present. Both d-wave and s-wave pairing symmetries have been proposed for AFe$_2$Se$_2$, but a d-wave gap generally has nodes, while experiments clearly point to no-nodal behavior, and a conventional s-wave gap is inconsistent with the observation of the neutron resonance below $T_c$. We argue that current theories of pairing in such systems are incomplete and must include not only intra-pocket pairing condensate but also inter-pocket condensate made of fermions belonging to different electron pockets. We analyze the interplay between intra-pocket and inter-pocket pairing depending on the ellipticity of electron pockets and the strength of their hybridization and show that hybridization brings the system into a new $s^{+-}$ state, in which the gap changes sign between hybridized pockets. This state has the full gap and at the same time supports spin resonance, in agreement with the data. Near the boundary of $s^{+-}$ state we found a long-thought $s+id$ state which breaks time-reversal symmetry.
description: 19 pages, 5 figures
The Phantom Term in Open String Field Theory
Creators: name: Erler, Theodore
name: Maccaferri, Carlo
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that given any two classical solutions in open string field theory and a singular gauge transformation relating them, it is possible to write the second solution as a gauge transformation of the first plus a singular, projector-like state which describes the shift in the open string background between the two solutions. This is the "phantom term." We give some applications in the computation of gauge invariant observables.
description: V2: minor improvements, added citations
Fast stray field computation on tensor grids
Creators: name: Exl, Lukas
name: Auzinger, Winfried
name: Bance, Simon
name: Gusenbauer, Markus
name: Reichel, Franz
name: Schrefl, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: A direct integration algorithm is described to compute the magnetostatic field and energy for given magnetization distributions on not necessarily uniform tensor grids. We use an analytically-based tensor approximation approach for function-related tensors, which reduces calculations to multilinear algebra operations. The algorithm scales with N^(4/3) for N computational cells used and with N^(2/3) (sublinear) when magnetization is given in canonical tensor format. In the final section we confirm our theoretical results concerning computing times and accuracy by means of numerical examples.
description: 16 pages, 1 figure, submitted to the Journal of Computational Physics
The action for higher spin black holes in three dimensions
Creators: name: Banados, M.
name: Canto, R.
name: Theisen, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the context of (2+1)--dimensional Chern-Simons SL(N,R)\times SL(N,R) gauge fields and spin N black holes we compute the on-shell action and show that it generates sensible and consistent thermodynamics. In particular, the Chern-Simons action solves the integrability conditions recently considered in the literature.
description: Paper shortened and generalized. Main results unchanged. 25 pages, Latex, no figures
On Max-Stable Processes and the Functional D-Norm
Creators: name: Aulbach, Stefan
name: Falk, Michael
name: Hofmann, Martin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G70

description: We introduce a functional domain of attraction approach for stochastic processes, which is more general than the usual one based on weak convergence. The distribution function G of a continuous max-stable process on [0,1] is introduced and it is shown that G can be represented via a norm on functional space, called D-norm. This is in complete accordance with the multivariate case and leads to the definition of functional generalized Pareto distributions (GPD) W. These satisfy W=1+log(G) in their upper tails, again in complete accordance with the uni- or multivariate case. Applying this framework to copula processes we derive characterizations of the domain of attraction condition for copula processes in terms of tail equivalence with a functional GPD. δ-neighborhoods of a functional GPD are introduced and it is shown that these are characterized by a polynomial rate of convergence of functional extremes, which is well-known in the multivariate case.
description: 22 pages
title: In 'the mouth of [the] cave': Wyndham Lewis, myth and the philosophical discourse of modernity circa 1914
Creators: name: Lewis, C
Publisher: name: Bath Spa University
Year: 2017

description: The central aim of this thesis is to clarify the conceptual role which 'myth' plays in Lewis's Vorticist 'pattern of thinking' and in doing so to deepen the existing critical understanding of Lewis's central importance to modernism (Foshay, 1984). As a reflective participant in modernism's turn to myth, Lewis, as I treat him here, opens a new and important chapter in the philosophical discourse of modernity, showing both the creative possibilities which myth presented the modern artist and highlighting the alarming consequences of seeking a new home for art among the ruins of ancient 'world pictures' (Heidegger, 2013). This point of focus leads me to join together two previously unconnected but highly relevant strands of Lewis scholarship, represented on one side by certain notable studies of Lewis's application to mythical source from Hindu, Buddhist and Gnostic typologies and, on the other side, in the identification of a corresponding anthropological rationale in Lewis's early writings. My analysis focuses particularly on instances in Lewis's Vorticist works when a mythopoeic tendency is consciously undercut by a lurking anthropological tendency which compels the rational disclosure of the myths being created. These warring elements of mythos and logos I take to be the 'master-subject' of Lewis's Vorticist text Enemy of the Stars and a crucial but previously underappreciated aspect of Lewis's early thought (Lewis, 1966). In order to access this feature of Lewis's works it has been necessary to conduct some preliminary research into the context of modernist 'primitivism', the formulation of Vorticist aesthetics and philosophy, and the thematic relation which exists between Lewis's early paintings and writings. These preparatory discussions are conducted in chapters one, two and three respectively, while the role played by myth in Lewis's pattern of thinking and the broader philosophical significance of this are addressed directly in chapters four and five.
To Battle The Opioid Overdose Epidemic, Deploy The ‘Cascade Of Care’ Model
Creators: name: Williams, Arthur
name: Nunes, Edward
name: Olfson, Mark
Publisher: name: Columbia University
Year: 2017
Subjects: Opioid abuse--Treatment
HIV (Viruses)--Treatment
Public health
Public health--Cost effectiveness
Health planning
Medical care

description: Similar to serologically confirmed undetectable HIV viral load, continuous abstinence from opioids can be objectively monitored with routine toxicology and serve as a biomarker for a primary outcome. Patients abstinent from opioids and on maintenance treatment with buprenorphine, methadone, or injectable naltrexone are at minimal risk for opioid overdose.

Applying quality metrics informed by the Cascade of Care to treatment of opioid use disorder holds great promise to help ensure optimal returns on federal funding for areas hardest hit by overdose. Treatment programs with historically low use of MAT in the face of the worsening epidemic need compelling incentives to change practice. Identifying which patients struggle at which stages of the Cascade to help target clinical and policy interventions can help STR funding achieve its greatest impact.

While the scale of the opioid crisis presents states and policymakers with a daunting and urgent task, adapting the Cascade of Care model to fit today’s crisis will help expedite and scale the programs needed to combat this epidemic.
Airspace Safety Modeling and Analysis  for Small UAS
Creators: name: Weinert, Andrew
Publisher: name: Zenodo
Year: 2023

description: Presentation given at the MIT Lincoln Laboratory Virtual Air Traffic Control Workshop on 14 November 2023. Discussion topics include FAA tasking MIT with multiple quick turnaround analyses to estimate if cooperative aircraft were broadcasting ADS-B Out or not and an update of statistical models of aircraft behavior. Notably, 1.6 flight hours of transponder but not ADS-B Out crewed aircraft were estimated within approximately a third of the DFW Mode C veil over August 1-14, 2023 from 100 – 500 ft AGL.
Structural Plasticity and Conformational Transitions of HIV Envelope Glycoprotein gp120
Creators: name: Korkut, Anil
name: Hendrickson, Wayne A.
Publisher: name: Columbia University
Year: 2012
Subjects: HIV infections
Glycoproteins
Proteins--Structure
Biochemistry

description: HIV envelope glycoproteins undergo large-scale conformational changes as they interact with cellular receptors to cause the fusion of viral and cellular membranes that permits viral entry to infect targeted cells. Conformational dynamics in HIV gp120 are also important in masking conserved receptor epitopes from being detected for effective neutralization by the human immune system. Crystal structures of HIV gp120 and its complexes with receptors and antibody fragments provide high-resolution pictures of selected conformational states accessible to gp120. Here we describe systematic computational analyses of HIV gp120 plasticity in such complexes with CD4 binding fragments, CD4 mimetic proteins, and various antibody fragments. We used three computational approaches: an isotropic elastic network analysis of conformational plasticity, a full atomic normal mode analysis, and simulation of conformational transitions with our coarse-grained virtual atom molecular mechanics (VAMM) potential function. We observe collective sub-domain motions about hinge points that coordinate those motions, correlated local fluctuations at the interfacial cavity formed when gp120 binds to CD4, and concerted changes in structural elements that form at the CD4 interface during large-scale conformational transitions to the CD4-bound state from the deformed states of gp120 in certain antibody complexes.
A six-parameter space to describe galaxy diversification
Creators: name: Fraix-Burnet, Didier
name: Chattopadhyay, Tanuka
name: Chattopadhyay, Asis Kumar
name: Davoust, Emmanuel
name: Thuillard, Marc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Galaxy diversification proceeds by transforming events like accretion, interaction or mergers. These explain the formation and evolution of galaxies that can now be described with many observables. Multivariate analyses are the obvious tools to tackle the datasets and understand the differences between different kinds of objects. However, depending on the method used, redundancies, incompatibilities or subjective choices of the parameters can void the usefulness of such analyses. The behaviour of the available parameters should be analysed before an objective reduction of dimensionality and subsequent clustering analyses can be undertaken, especially in an evolutionary context. We study a sample of 424 early-type galaxies described by 25 parameters, ten of which are Lick indices, to identify the most structuring parameters and determine an evolutionary classification of these objects. Four independent statistical methods are used to investigate the discriminant properties of the observables and the partitioning of the 424 galaxies: Principal Component Analysis, K-means cluster analysis, Minimum Contradiction Analysis and Cladistics. (abridged)
description: Accepted for publicationin A\&A
A method to characterize formaldehyde cross-linking in proteins by mass spectrometry
Creators: name: Ding, Xuan
Publisher: name: University of British Columbia
Year: 2012

description: The formaldehyde cross-linking approach has been used to identify protein interactions in living cells and organisms, and has the potential to map the geometry of interactions based on cross-linked peptides. However, the identification of cross-linked peptides has not been realized in native proteins, not even in model proteins. In this study, a method to identify and characterize cross-linked peptides in model proteins is developed. The method was initially developed in an insulin model system. Candidates of cross-linked peptides were identified by matching a list of putative cross-linked peptides to experimental MS signals. Signals in the MS/MS spectrum of a candidate were matched with proposed fragment ions, and confirmation of all proposed structural components verified a candidate to be a cross-linked peptide. As a result, three cross-linked insulin peptides were identified for the first time. The CID fragmentation of a formaldehyde cross-linked peptide proved to occur at both the cross-link bridge and peptide backbones. Fragment ions containing the cross-link bridge allowed the localization of cross-link sites, which revealed a specific N-terminus to tyrosine cross-link. The method was then refined using two model protein systems of equivalent and higher complexity. Five cross-linked insulin peptides and three cross-linked myoglobin peptides were identified, with cross-link sites localized. The fragmentation patterns of cross-linked peptides were further confirmed. The localization of cross-link sites in proteins revealed the N-terminus to tyrosine/asparigine and lysine to tyrosine cross-links, cross-links on arginine, and two cross-links forming on one single N-terminus. Furthermore, monitoring progression of the two reaction steps at cross-link sites revealed the chemistry of formaldehyde cross-linking reaction in proteins for the first time. In addition, with more complex data as the iii size of the model protein increased, the method was refined by applying programming to data processing and a bar-graph visualization to localize cross-link sites on isomeric peptides. In the future, this method can be applied to other model protein systems for a more comprehensive understanding of formaldehyde cross-linking. The fragmentation patterns and reaction chemistry revealed by this method can be used to facilitate the identification of cross-linked peptides in native proteins.
title: Special Educational Needs and Disabilities reforms 2014 - from policy to practice: SENCos' perspectives of the first year post implementation
Creators: name: Curran, H
Publisher: name: Bath Spa University
Year: 2017

description: This study explores the role of the Special Educational Needs Co-ordinator (SENCo) as an implementer of Special Educational Needs policy within mainstream schools, at a time of significant Special Educational Needs and Disabilities (SEND) policy reform; the SEND reforms. This study examines the various policy actor roles the SENCo could be seen to assume during this period (Ball et al., 2012) and explores the initial impact of the SEND reforms, from the perspective of the SENCo. A phenomenological approach to the study has been taken. The data consists of five phases which were conducted during the first year of SEND reform. Phases one and two sought the initial views of SENCos' regarding preparedness for the introduction of the SEND reforms. Data was gathered through questionnaires and interviews respectively. Phas three consisted of six interviews with nine SENCos across the academic year which explored the SENCos experience of SEND reforms implementation. Phases four and five comprised of questionnaires to wider groups of SENCos and sought to explore the emerging themes from phase three. Data has been analysed through a thematic analysis approach. The findings indicate that the SENCos immediately established themselves as leaders of policy implementation; determining priorities and related actions, often without the status Senior Leadership Team membership can bring. The study suggests that, in order to support the implementation of the new policy, SENCos assumed various policy actor roles during this period, including narrator, entrepreneur and enthusiast. The findings suggest that, from the perspective of the SENCo, the SEND reforms have already had an impact, including an expansion of the SENCo role and an increase in engagement between schools and parents. SENCos also reported a reduction in the numbers of children identified as having SEN in response to a number of drivers, directly related to the introduction of the SEND reforms.
Mathematical Physics : Problems and Solutions of The Students Training Contest Olympiad in Mathematical and Theoretical Physics (May 21st - 24th, 2010)
Creators: name: Beloglazov, G. S.
name: Bobrick, A. L.
name: Chervon, S. V.
name: Danilyuk, B. V.
name: Dolgopolov, M. V.
name: Ivanov, M. G.
name: Panina, O. G.
name: Petrova, E. Yu.
name: Rodionova, I. N.
name: Rykova, E. N.
name: Shalaginov, M. Y.
name: Tsirova, I. S.
name: Volovich, I. V.
name: Zubarev, A. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Physics Education (physics.ed-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: The present issue of the series <> represents the Proceedings of the Students Training Contest Olympiad in Mathematical and Theoretical Physics and includes the statements and the solutions of the problems offered to the participants. The contest Olympiad was held on May 21st-24th, 2010 by Scientific Research Laboratory of Mathematical Physics of Samara State University, Steklov Mathematical Institute of Russia's Academy of Sciences, and Moscow Institute of Physics and Technology (State University) in cooperation. The present Proceedings is intended to be used by the students of physical and mechanical-mathematical departments of the universities, who are interested in acquiring a deeper knowledge of the methods of mathematical and theoretical physics, and could be also useful for the persons involved in teaching mathematical and theoretical physics.
description: 68 pages, Proceedings of the statements and solutions of the problems of the Students Training Contest Olympiad in Mathematical and Theoretical Physics. The subjects covered by the problems include classical mechanics, integrable nonlinear systems, probability, integral equations, PDE, quantum and particle physics, cosmology, and other areas of mathematical and theoretical physics; Ser. Modern Problems of Mathematical Physics Spec. Iss. 3. - Samara : Samara University Press, 2010
Soft QCD in ATLAS: measurements and modelling of multi-parton interactions
Creators: name: Buckley, Andy
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Soft QCD contributes to all observables at the LHC, due to the presences of underlying event (UE) and pile-up in all events. Both these processes are dominated by multi-parton interactions (MPI), i.e. the result of proton collisions containing more than one partonic interaction due to collective and beam remnant effects. While there is undoubtedly interesting physics involved in MPI, the primary interest of LHC experiments is to characterise and model the behaviour of UE and pile-up sufficiently well that their influence may be cleanly subtracted in the process of searching for new physics signatures at 7 TeV and beyond. I summarise the soft QCD measurements made by ATLAS using the 2010 and early 2011 datasets, and the use of this data to improve Monte Carlo generator models of MPI for use in forthcoming simulation campaigns.
description: 33 pages, Proceedings of the 51st Cracow School of Theoretical Physics, June 2011
A search for multiple equilibria in urban industrial structure
Creators: name: Davis, Donald R.
name: Weinstein, David E.
Publisher: name: Columbia University
Year: 2004
Subjects: Economics

description: Theories featuring multiple equilibria are now widespread across many fields of economics. Yet little empirical work has asked if such multiple equilibria are salient features of real economies. We examine this in the context of the Allied bombing of Japanese cities and industries in WWII. We develop a new empirical test for multiple equilibria and apply it to data for 114 Japanese cities in eight manufacturing industries. The data provide no support for the existence of multiple equilibria. In the aftermath even of immense shocks, a city typically recovers not only its population and its share of aggregate manufacturing, but even the specific industries it had before.
Evolution of the nuclear and magnetic structures of TlFe1.6Se2 with temperature
Creators: name: Cao, Huibo
name: Cantoni, Claudia
name: May, Andrew F.
name: McGuire, Michael A.
name: Chakoumakos, Bryan C.
name: Pennycook, Stephen J.
name: Custelcean, Radu
name: Sefat, Athena S.
name: Sales, Brian C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The evolution of the nuclear and magnetic structures of TlFe$_{1.6}$Se$_2$ was determined in the temperature range of 5-450\,K using single crystal neutron diffraction. The Fe layers in these materials develop a corrugation in the magnetically ordered state. A canting away from the block checkerboard magnetic structure is observed in the narrow temperature range between approximately 100 and 150\,K. In this same temperature range, an increase in the corrugation of the Fe layers is observed. At lower temperatures, the block checkerboard magnetic structure is recovered with a suppressed magnetic moment and abrupt changes in the lattice parameters. Microstructure analysis at 300\,K using atomic-resolution Z-contrast scanning transmission electron microscopy reveals regions with ordered and disordered Fe vacancies, and the iron content is found to be uniform across the crystal. These findings highlight the differences between the alkali-metal and thallium materials, and indicate competition between magnetic ground states and a strong coupling of magnetism to the lattice in TlFe$_{1.6}$Se$_2$.
description: in press, Phys. Rev. B
What is the economic evidence for mHealth? A systematic review of economic evaluations of mHealth solutions
Creators: name: Iribarren, Sarah J.
name: Cato, Kenrick Dwain
name: Falzon, Louise
name: Stone, Patricia W.
Publisher: name: Columbia University
Year: 2017
Subjects: Medical economics
Wireless communication systems in medical care
Health services administration
Medical care

description: Background: Mobile health (mHealth) is often reputed to be cost-effective or cost-saving. Despite optimism, the strength of the evidence supporting this assertion has been limited. In this systematic review the body of evidence related to economic evaluations of mHealth interventions is assessed and summarized. Methods: Seven electronic bibliographic databases, grey literature, and relevant references were searched. Eligibility criteria included original articles, comparison of costs and consequences of interventions (one categorized as a primary mHealth intervention or mHealth intervention as a component of other interventions), health and economic outcomes and published in English. Full economic evaluations were appraised using the Consolidated Health Economic Evaluation Reporting Standards (CHEERS) checklist and The PRISMA guidelines were followed. Results: Searches identified 5902 results, of which 318 were examined at full text, and 39 were included in this review. The 39 studies spanned 19 countries, most of which were conducted in upper and upper-middle income countries (34, 87.2%). Primary mHealth interventions (35, 89.7%), behavior change communication type interventions (e.g., improve attendance rates, medication adherence) (27, 69.2%), and short messaging system (SMS) as the mHealth function (e.g., used to send reminders, information, provide support, conduct surveys or collect data) (22, 56.4%) were most frequent; the most frequent disease or condition focuses were outpatient clinic attendance, cardiovascular disease, and diabetes. The average percent of CHEERS checklist items reported was 79.6% (range 47.62–100, STD 14.18) and the top quartile reported 91.3–100%. In 29 studies (74.3%), researchers reported that the mHealth intervention was cost-effective, economically beneficial, or cost saving at base case. Conclusions: Findings highlight a growing body of economic evidence for mHealth interventions. Although all studies included a comparison of intervention effectiveness of a health-related outcome and reported economic data, many did not report all recommended economic outcome items and were lacking in comprehensive analysis. The identified economic evaluations varied by disease or condition focus, economic outcome measurements, perspectives, and were distributed unevenly geographically, limiting formal meta-analysis. Further research is needed in low and low-middle income countries and to understand the impact of different mHealth types. Following established economic reporting guidelines will improve this body of research.
KOI 1224, a Fourth Bloated Hot White Dwarf Companion Found With Kepler
Creators: name: Breton, Rene P.
name: Rappaport, Saul A.
name: van Kerkwijk, Marten H.
name: Carter, Josh A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an analysis and interpretation of the Kepler binary system KOI 1224. This is the fourth binary found with Kepler that consists of a thermally bloated, hot white dwarf in a close orbit with a more or less normal star of spectral class A or F. As we show, KOI 1224 contains a white dwarf with Teff = 14400 +/- 1100 K, mass = 0.20 +/- 0.02 Msun, and radius = 0.103 +/- 0.004 Rsun, and an F-star companion of mass = 1.59 +/- 0.07 Msun that is somewhat beyond its terminal-age main sequence. The orbital period is quite short at 2.69802 days. The ingredients that are used in the analysis are the Kepler binary light curve, including the detection of the Doppler boosting effect; the NUV and FUV fluxes from the Galex images of this object; an estimate of the spectral type of the F-star companion; and evolutionary models of the companion designed to match its effective temperature and mean density. The light curve is modelled with a new code named Icarus which we describe in detail. Its features include the full treatment of orbital phase-resolved spectroscopy, Doppler boosting, irradiation effects and transits/eclipses, which are particularly suited to irradiated eclipsing binaries. We interpret the KOI 1224 system in terms of its likely evolutionary history. We infer that this type of system, containing a bloated hot white dwarf, is the direct descendant of an Algol-type binary. In spite of this basic understanding of the origin of KOI 1224, we discuss a number of problems associated with producing this type of system with this short of an short orbital period.
description: 14 pages, 8 figures, 2 tables, submitted to ApJ