cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Microlocal homology
Creators: name: Schefers, Kendric Docters
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Microlocal
Sheaves
Donaldson-Thomas
Perverse sheaves
Vanishing cycles

description: We introduce a functor of microlocalization along quasi-smooth closed immersions of derived schemes. By microlocalizing along an embedding of a quasi-smooth Z into a smooth X, we obtain a perverse sheaf µ [subscript Z/X] on the derived conormal bundle N [∨ over subscript Z/X], which refines Nadler’s microlocal homology of singular spaces in the case when Z is presented as the derived zero fiber of a regular function on X. Using the canonical inclusion T [superscript ∗] [−1]Z⊂N [∨ over subscript Z/X], we show that µ [subscript Z/X] is in fact equivalent to the canonical perverse sheaf of twisted vanishing cycles on T [superscript ∗] [−1]Z categorifying Donaldson–Thomas invariants. This equivalence proves that µ [subscript Z/X] is actually intrinsic to Z, which allows us to formulate a proposed theory of singular support, as a subset of T [superscript ∗] [−1]Z, for Borel–Moore chains on the underlying classical scheme of Z equipped with the analytic topology.
Colorado water, February 1999
Creators: name: Bartecchi, Dave
name: Carillo, John
name: Miller, Jamie
name: Miller, Shirley
name: Colorado Water Resources Research Institute, Publisher
Publisher: name: Mountain Scholar
Year: 1999
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The scope of the newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the research universities in the state.
description: Newsletter of the Water Center of Colorado State University.
Strategic Management: Text and Cases 7th edition
Creators: name: ภาวิณี สตาร์เจล
Publisher: name: คณะบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร มหาวิทยาลัยนเรศวร
Year: 2560
Subjects: Strategic Management
การบริหารเชิงกลยุทธ์
การเรียนรู้จากข้อผิดพลาด
Learning from Mistakes

description: วารสารบริหารธุรกิจ เศรษฐศาสตร์และการสื่อสาร, 12, 2, 176-179
Asymptotic Optimality of the Bisection Method
Creators: name: Sikorski, Krzysztof A.
name: Trojan, G. M.
Publisher: name: Columbia University
Year: 1984
Subjects: subject: Computer science
subject: Mathematics
subject: FOS: Mathematics

description: The bisection method is shown to possess the asymptotically best rate of convergence for infinitely differentiable functions having zeros of arbitrary multiplicity. If the multiplicity of zeros is bounded methods are known which have asymptotically at least quadratic rate of convergence.
Investigating the effectiveness and safety of Earth Science Labs' disinfectants for reverse osmosis membranes
Creators: name: Hong, Noheul
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Reverse osmosis
Disinfectants
Scaling prevention products

description: Reverse osmosis (RO) systems are vulnerable to biofouling and scaling, which require disinfectants and antiscalants to maintain efficiency. In this study, we evaluated the performance of four disinfectant and/or scaling prevention products from Earth Science Labs - EarthTec QZ, MetalShield, Kleen-Break, and PABP-P - in comparison with commonly used monochloramine. The study investigated the damage that these disinfectants could potentially cause to commercial polyamide RO membranes. We characterized and tested the performance of commercial brackish water RO membranes treated with the four disinfectants for a typical lifetime of usage expected for them (7 years at 1 ppm, i.e., 61,320 ppmh) and compared with untreated RO membranes and monochloramine-treated membranes. The study found that the Earth Science Labs disinfectants did not cause any damage to RO membranes, particularly when compared to monochloramine, which is widely used in water reuse settings to prevent biofouling in RO membranes. The study concludes that all target solutions have minimal damage when compared to monochloramine to commercial BW30 membranes.
The Complexity of Fredholm Equations of the Second Kind: Noisy Information About Everything
Creators: name: Werschulz, Arthur G.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: We study the complexity of Fredholm problems of the second kind u − Ω k(·, y)u(y) dy = f . Previous work on the complexity of this problem has assumed that Ω was the unit cube Id. In this paper, we allow Ω to be part of the data specifying an instance of the problem, along with k and f. More precisely, we assume that Ω is the diffeomorphic image of the unit d-cube under a Cr1 mapping ρ Id → Il. In addition, we assume that k ∈ Cr2 (I2l) and f ∈ Wr3,p(Il) with r3 > l/p. Our information about the problem data is contaminated by δ-bounded noise. Error is measured in the Lp-sense. We find that the nth minimal error is bounded from below by Θ(n−μ1 + δ) and from above by Θ(n−μ2 + δ), where μ1 = min r1 , r2 , r3 − (d − l)/p and μ2 = min r1 − ν , r2 , r3 − (l − d)/p , d2d d d2d d with d ν=p ifr1 ≥2,r2 ≥2, and d≤p, 1 otherwise. In particular, the nth minimal error is proportional to Θ(n−μ1 +δ) when p = ∞. The upper bound is attained by a noisy modified Galerkin method, which can be efficiently implemented using multigrain techniques. We thus find bounds on the ε-complexity of the problem, these bounds depending on the cost c(δ) of calculating a δ-noisy function value. As an example, if c(δ) = δ−b, we find that the ε-complexity is between (1/ε)b+1/μ1 and (1/ε)b+1/μ2 .
Search for electromagnetic properties of the neutrino in $γe$ and $γγ$ collisions at CLIC
Creators: name: Senol, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have examined nonstandard $γν\barν$ and $γγν\barν$ couplings via $ν\barν$ production in a $eγ$ and $γγ$ collisions at the CLIC. We obtain 95% confidence level bounds on $γν\barν$ and $γγν\barν$ couplings by considering the backscattered photon distribution function for incoming photons and Initial State Radiation (ISR) and Beamstrahlung (BS) effect for initial state electrons in the $eγ$ and $γγ$ collider modes of linear collider. We indicate that the reaction $γγ\toν\barν$ provides more than 15 orders of magnitude improvement in neutrino-two photon couplings compared to LEP limits.
description: 14 pages, 11 figures, to appear in Phys. Rev. D
A qualitative systems approach to studying innovation implementation in an inter-organizational smoking cessation network
Creators: name: Terpstra, Jennifer Lynn
Publisher: name: University of British Columbia
Year: 2011

description: The overarching purpose of this study was to explore the implementation of an innovation in the North American quitline network using qualitative data and a systems approach. The innovation chosen to explore in more depth was evaluating effectiveness of the tobacco cessation quitlines. The three research questions guiding the study were 1) What are the factors influencing implementation of the innovation, 2) How do system structure and dynamics impact implementation of the innovation, and 3) What strategies can be used to achieve successful implementation of the innovation. To answer the research questions, 19 semi-structured interviews were conducted with decision-makers in the quitline network. The interview data were analyzed using a thematic analysis technique and a systems change framework from the literature. The findings suggest that there were a broad range of factors influencing implementation of the innovation at multiple levels of the system. The findings also provide insights into how differences in quitline structure and system dynamics influenced implementation of the innovation. Lastly, these findings were used to identify potential strategies and provide recommendations to improve future implementation efforts in the quitline network.
Using Focus to Generate Complex and Simple Sentences
Creators: name: Derr, Marcia A.
name: McKeown, Kathleen
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science

description: One problem for the generation of natural language text is determining when to use a sequence of simple sentences and when a single complex one is more appropriate. In this paper, we show how focus of attention is one factor that influences this decision and describe its implementation in a system that generates explanations for a student advisor expert system. The implementation uses tests on functional information such as focus of attention within the Prolog definite clause grammar formalism to determine when to use complex sentences, resulting in an efficient generator that has the same benefits as a functional grammar system.
The gauging of two-dimensional bosonic sigma models on world-sheets with defects
Creators: name: Gawedzki, Krzysztof
name: Suszek, Rafal R.
name: Waldorf, Konrad
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We extend our analysis of the gauging of rigid symmetries in bosonic two-dimensional sigma models with Wess-Zumino terms in the action to the case of world-sheets with defects. A structure that permits a non-anomalous coupling of such sigma models to world-sheet gauge fields of arbitrary topology is analysed, together with obstructions to its existence, and the classification of its inequivalent choices.
description: 94 pages, 1 figure
Analyzing problems affecting the performances of public-private partnership transportation projects  Case studies in Vietnam
Creators: name: Veerasak Likhitruangsilp
name: Do, Sy Tien
name: Onishi, Masamitsu
name: Tran, Tung Thanh Dinh
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: case studies
public-private partnerships (PPP)
problems
transportation
Vietnam

description: Songklanakarin Journal of Science and Technology, 40, 6, 1405-1419
title:   EFFECTS OF CONSTANT LOAD EXERCISE ON OXYGEN CONSUMPTION AND KNEE JOINT MECHANICS IN YOUNG ADULTS
Creators: name: Jacobs, Mariana
Publisher: name: University of Kentucky Libraries
Year: 2023
Subjects: subject: FOS: Health sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: The rate of obesity and its adverse health consequences have continued to rise in the past several decades. Aerobic constant load exercise is recommended to reduce excess body mass, however the effects of constant load exercise on oxygen consumption (VO2) and knee joint mechanics are inconsistent when varying weight-status strategies are employed. The purpose of this study was to assess the influence of different weight classification strategies on VO2 and knee joint mechanics during constant load exercise. Participants walked on an instrumented treadmill at a self-selected speed for 30-minutes while gait mechanics and VO2 measures were determined. Between-group differences were assessed using BMI ≥ 25, BMI ≥ 30, %Fat, and the fat free mass index. Our results show that the methodology used to categorize individuals into healthy and at-risk weight is important and impacts the findings of the effects that constant load exercise has on oxygen consumption and knee joint mechanics. Determination of an optimal methodology to assess the impact of obesity on VO2 and knee joint mechanics during constant load exercise is important for developing aerobic exercise programs for at-risk weight individuals whose goal is to reduce excess body mass to improve
description: © 2023 Mariana Victoria Jacobs
Optimal State-Free, Size-aware Dispatching for Heterogeneous M/G/-type systems
Creators: name: Feng, Hanhua
name: Misra, Vishal
name: Rubenstein, Daniel Stuart
Publisher: name: Columbia University
Year: 2005
Subjects: Computer science

description: We consider a cluster of heterogeneous servers, modeled as M/G/1 queues with different processing speeds. The scheduling policies for these servers can be either processor-sharing or first-come first-serve. Furthermore, a dispatcher that assigns jobs to the servers takes as input only the size of the arriving job and the overall job-size distribution. This general model captures the behavior of a variety of real systems, such as web server clusters. Our goal is to identify assignment strategies that the dispatcher can perform to minimize expected completion time and waiting time. We show that there exist optimal strategies that are deterministic, fixing the server to which jobs of particular sizes are always sent. We prove that the optimal strategy for systems with identical servers assigns a non-overlapping interval range of job sizes to each server. We then prove that when server processing speeds differ, it is necessary to assign each server a distinct set of intervals of job sizes in order to minimize expected waiting or response times. We explore some of the practical challenges of identifying the optimal strategy, and also study a related problem that uses our model of how to provision server processing speeds to minimize waiting and completion time given a job size distribution and fixed aggregate processing power.
Female biology and early life aspects of the swamp eel (Monopterus albus)
Creators: name: Thumronk Amornsakun
name: Ponpanom Promkaew
name: Hassan, Anuar Bin
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: fecundity
gonadosomatic index (GSI)
yolk absorption
mouth development
start of feeding
starvation
larviculture
swamp eel
Monopterus albus

description: Songklanakarin Journal of Science and Technology, 40, 6, 1420-1427
Neo-mythological dramatic inception : a multimedia electroacoustic music concert
Creators: name: Zhang, Jinghong, 1988-
name: 0000-0003-2983-6875
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Concert
Electroacoustic music
Interactive electronics
Multimedia
Technology
Drama
Theater
Performance art

description: Neo-mythological Dramatic Inception is a multimedia theatrical electroacoustic music project based on Chinese mythologies. The integration of interactive electronics and theatrical elements, such as choreography, stage and lighting design with newly invented musical instruments, posts many challenges and new experimentations in creating this unique form of performance art. These challenges include the design of interactive electroacoustic sonic system, interaction between music and other theatrical components of the work, the reason and purpose of the making of a new musical instrument relevant to the project, musical structuring based on the improvisational setting, and collaborative endeavor of the project aimed to emerge different musical languages and voices into an intrigued musical form. Chapter 1 will introduce the genesis of this project and my main influences that lead to the fruition of this work. Chapter 2 will provide a general overview of the interdisciplinary designs of the project, while Chapter 3 will offer an in-depth analysis of these designs through a movement-by-movement analysis.analysis of these designs through a movement-by-movement analysis.
Form factors and scattering amplitudes in N=4 SYM in dimensional and massive regularizations
Creators: name: Henn, Johannes M.
name: Moch, Sven
name: Naculich, Stephen G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The IR-divergent scattering amplitudes of N=4 supersymmetric Yang-Mills theory can be regulated in a variety of ways, including dimensional regularization and massive (or Higgs) regularization. The IR-finite part of an amplitude in different regularizations generally differs by an additive constant at each loop order, due to the ambiguity in separating finite and divergent contributions. We give a prescription for defining an unambiguous, regulator-independent finite part of the amplitude by factoring off a product of IR-divergent "wedge" functions. For the cases of dimensional regularization and the common-mass Higgs regulator, we define the wedge function in terms of a form factor, and demonstrate the regularization independence of the n-point amplitude through two loops. We also deduce the form of the wedge function for the more general differential-mass Higgs regulator, although we lack an explicit operator definition in this case. Finally, using extended dual conformal symmetry, we demonstrate the link between the differential-mass wedge function and the anomalous dual conformal Ward identity for the finite part of the scattering amplitude.
description: 29 pages, 4 figures; v2: references added
Central limit theorems for uniform model random polygons
Creators: name: Pardon, John
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We show how a central limit theorem for Poisson model random polygons implies a central limit theorem for uniform model random polygons. To prove this implication, it suffices to show that in the two models, the variables in question have asymptotically the same expectation and variance. We use integral geometric expressions for these expectations and variances to reduce the desired estimates to the convergence $(1+\fracαn)^n\to e^α$ as $n\to\infty$.
The zero-inflated negative binomial-Erlang distribution: An application to highly pathogenic avian influenza H5N1 in Thailand
Creators: name: Winai Bodhisuwan
name: Siriporn Samutwachirawong
name: Prasit Payakkapong
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2018
Subjects: negative binomial-Erlang distribution
zero-inflated distribution
count data analysis
overdispersion
H5N1

description: Songklanakarin Journal of Science and Technology, 40, 6, 1428-1436
Additional file 1 of Exosomal CagA from Helicobacter pylori aggravates intestinal epithelium barrier dysfunction in chronic colitis by facilitating Claudin-2 expression
Creators: name: Guo, Yinjie
name: Xu, Canxia
name: Gong, Renjie
name: Hu, Tingzi
name: Zhang, Xue
name: Xie, Xiaoran
name: Chi, Jingshu
name: Li, Huan
name: Xia, Xiujuan
name: Liu, Xiaoming
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. Primers and shRNAs used in this study.
Colorado water, March/April 2014
Creators: name: Middleton, Lindsey A.
name: Colorado Water Institute, Publisher
Publisher: name: Mountain Scholar
Year: 2014
Subjects: subject: Water resources development -- Colorado
subject: Water use -- Colorado
subject: Water-supply -- Colorado
subject: Water-supply -- Management -- Colorado

description: The newsletter is devoted to enhancing communication between Colorado water users and managers and faculty at the state's research universities.
description: Newsletter of the Water Center of Colorado State University. Theme: Stormwater.
Protocol Architecture of a Tree Network with Collision Avoidance Switches
Creators: name: Suda, Tatsuya
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science

description: In this paper we propose a tree network with collision avoidance switches and discuss its protocol architecture and performance. In the tree network, collision avoidance switches are connected by full duplex transmission lines and form a rooted tree topology with stations at its leaves. A station transmits a packet whenever it has a new one. The collision avoidance switch allows packets to go through when it is idle, and blocks them when busy; thus collisions caused by simultaneous transmissions of packets are avoided. Blocked packets are retransmitted by the sender, while unblocked packets, after having climbed up the tree to an appropriate height, are broadcast down to a subset of stations (local broadcast). Packets are broadcast locally in order to maximize the number of concurrent transmissions. In addition, collisions among packets are completely avoided, hence, the network is highly efficient in performance. Performance analysis for simple case is shown, and the mean packet transmission delay and throughput are obtained.
cdf applications complement of the book "Introduction à le théorie quantique, concepts, pratique et applications" by M. Desouter-Lecomte, Y. Justum, X. Chapuisat, Ellipses, 2017
Creators: name: Desouter-Lecomte
name: Justum
Publisher: name: Zenodo
Year: 2017
Subjects: Quantum Mechanics
Chemical Physics

description: Applications in cdf format that run with cdfplayer (version 12) of Wolfram Mathematica. The applications are complement of the book "Introduction à la Théorie quantique, concepts, pratiques et applications by M. Desouter-Lecomte, Yves Justum and X. Chapuisat, Ellipses, Paris, 2017
Incremental Algorithms for Inter-procedural Analysis of Safety Properties
Creators: name: Conway, Christopher L.
name: Namjoshi, Kedar S.
name: Dams, Dennis
name: Edwards, Stephen A.
Publisher: name: Columbia University
Year: 2005
Subjects: Computer science

description: Automaton-based static program analysis has proved to be an effective tool for bug finding. Current tools generally re-analyze a program from scratch in response to a change in the code, which can result in much duplicated effort. We present an inter-procedural algorithm that analyzes incrementally in response to program changes and present experiments for a null-pointer dereference analysis. It shows a substantial speed-up over re-analysis from scratch, with a manageable amount of disk space used to store information between analysis runs.
A Real-Time Transport Protocol
Creators: name: Yemini, Yechiam
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science

description: A real-time protocol is usually concerned with the transportation of a real-time data stream over a packet switched network. Among the major issues distinguishing real-time protocols from ordinary transport protocols is the problem of trading delay for loss. That is, if some loss of packets may be acceptable, and usually inevitable, the objective of the protocol is to minimize the delay of packets, subject to constraints on the acceptable loss. This is unlike usual transport protocols, which are designed to guarantee no loss at the expense of increased delays. This paper presents a model for the delay-loss tradeoffs in real-time transport protocols. It is demonstrated that, under very general assumptions, an optimal real-time protocol is a bang-bang protocol: there exists a threshold queue length such that as long as the packet queue length at the sender is less than the threshold the protocol should be an ordinary positive acknowledgment with retransmissions transport protocol. However, as soon as the threshold queue length is exceeded, a newly arriving packet causes the first packet in the queue to be discarded. Closed form expressions for the threshold buffer size are obtained and analyzed in terms of the given parameters of the system.
The MGDO software library for data analysis in Ge neutrinoless double-beta decay experiments
Creators: name: Agostini, M.
name: Detwiler, J. A.
name: Finnerty, P.
name: Kröninger, K.
name: Lenz, D.
name: Liu, J.
name: Marino, M. G.
name: Martin, R.
name: Nguyen, K. D.
name: Pandola, L.
name: Schubert, A. G.
name: Volynets, O.
name: Zavarise, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The GERDA and Majorana experiments will search for neutrinoless double-beta decay of germanium-76 using isotopically enriched high-purity germanium detectors. Although the experiments differ in conceptual design, they share many aspects in common, and in particular will employ similar data analysis techniques. The collaborations are jointly developing a C++ software library, MGDO, which contains a set of data objects and interfaces to encapsulate, store and manage physical quantities of interest, such as waveforms and high-purity germanium detector geometries. These data objects define a common format for persistent data, whether it is generated by Monte Carlo simulations or an experimental apparatus, to reduce code duplication and to ease the exchange of information between detector systems. MGDO also includes general-purpose analysis tools that can be used for the processing of measured or simulated digital signals. The MGDO design is based on the Object-Oriented programming paradigm and is very flexible, allowing for easy extension and customization of the components. The tools provided by the MGDO libraries are used by both GERDA and Majorana.
description: 4 pages, 1 figure, proceedings for TAUP2011
Textural transitions in Fauré’s Violin Sonata No. 1 in A major, Op. 13
Creators: name: Lin, Michelle A.
name: 0009-0009-6586-8058
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: French music
Fauré
Chamber music
Sonata form

description: This paper examines the seamless textural merging of distinct sonata form sections derived from its lack of form-defining cadences, linear bass lines, and mediant modulations in Fauré’s Violin Sonata No. 1 in A major, Op. 13 (1875-76). This violin sonata—the composer’s inaugural chamber music work and hallmark of his early chamber music style—was premiered at the Société nationale de musique in the Salle Pleyel in 1877 and published by Breitkopf & Härtel just weeks after its premiere. Fauré’s First Violin Sonata is both innovative and notable for its lack of form-defining cadences, modulatory harmonies over linear bass lines, and modulations by thirds that foreshadow the tonalities of subsequent movements. The lack of cadences at formal junctures in the first, second, and fourth movements of this sonata results in increased textural cohesiveness between formal sections. Moreover, chromatic basslines not only enhance textural continuity within formal sections, but also underpin pivot chords that facilitate modulations by thirds. Finally, mediant and chromatic mediant modulations within the first movement foreshadow the tonalities of this violin sonata’s subsequent movements.
Quantum-orbit analysis of high-order harmonic generation by resonant plasmon field enhancement
Creators: name: Shaaran, T.
name: Ciappina, M. F.
name: Lewenstein, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We perform a detailed analysis of high-order harmonic generation (HHG) in atoms within the strong field approximation (SFA) by considering spatially inhomogeneous monochromatic laser fields. We investigate how the individual pairs of quantum orbits contribute to the harmonic spectra. We show that in the case of inhomogeneous fields, the electron tunnels with two different canonical momenta. One of them leads to a higher cutoff and the other one develops a lower cutoff. Furthermore, we demonstrate that the quantum orbits have a very different behavior in comparison to the homogeneous field. We also conclude that in the case of the inhomogeneous fields, both odd and even harmonics are present in the HHG spectra. Within our model, we show that the HHG cutoff extends far beyond the semiclassical cutoff as a function of inhomogeneity strength. Our findings are in good agreement both with quantum mechanical and classical models.
description: 11 pages, 15 figures
Computational complexity of continuous problems
Creators: name: Wozniakowski, Henryk
Publisher: name: Columbia University
Year: 1996
Subjects: Computer science

description: Computational complexity studies the intrinsic difficulty of solving mathematically posed problems. Information based complexity is a branch of computational complexity that deals with continuous problems defined on spaces of multivariate functions. For such problems only approximate solutions are possible to compute. The complexity is defined as the minimal cost needed to compute an approximation with error at most. Error and cost can be defined in different settings such as the worst case average case probabilistic or randomized settings.
The impact of parent involvement during youth anxiety treatment
Creators: name: Bowling, Amanda Ann
name: 0000-0002-6408-2477
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Child
Anxiety
Psychotherapy process

description: Despite the strong empirical evidence for cognitive behavioral therapy (CBT) and exposure in the treatment of anxiety disorders, most youth with anxiety will never receive a course of CBT (Creswell et al., 2020) and most individuals with anxiety never receive exposure-based CBT (Wolitzky-Taylor et al., 2015). Youth differences in response and relapse rates have led therapists to consider ways to maximize treatment outcomes, including consideration of the level of parental involvement in youth anxiety treatment (Ginsburg et al., 2011, 2018; James et al., 2013; Kendall & Peterman, 2015; McGuire et al., 2015). While parent involvement in youth psychotherapy has generally been associated with improved treatment outcomes (Dowell & Ogles, 2010), research within youth anxiety treatment has been mixed (Barmish & Kendall, 2005). The current study examined the role of parents in youth anxiety treatment (N=29). Therapy sessions (N = 353) were examined at the microlevel, using observational coding to examine parent presence as a predictor of youth anxiety symptoms. The primary aims of the study were to address the extent to which (1) the amount of parent involvement in youth CBT for anxiety influences treatment outcomes, (2) the use of exposure and its related treatment components impact treatment outcomes, (3) the duration of time that parents are involved during exposure and its related treatment components impact treatment outcomes, and (4) the duration of time that parents are involved during exposure-related treatment components impacts relapse rates. Growth curve modeling was used to predict longitudinal change in symptoms. Results revealed that the more time spent engaging in the treatment components fear ladder and homework assignment, the more improved internalizing symptoms were, regardless of parent presence. Limitations and future directions are discussed.
Myrmicocrypta Smith 1860
Creators: name: Mera-Rodríguez, Daniela
name: Serna, Francisco
name: Sosa-Calvo, Jeffrey
name: Lattke, John
name: Rabeling, Christian
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Myrmicocrypta

description: (29) Myrmicocrypta sp. 1 Material examined. COLOMBIA: Cesar • 2 workers; Guacoche; 10°40′55″N, 073°17′29″W; alt. 250– 150 m; Jan. 2011; Y. Dominguez leg.; UNAB 4757. Comment. This is a new species only known from two workers and will be described in a forthcoming taxono- mic study. This species corresponds to species Myrmicocrypta ca. ednaella in Sosa-Calvo (2015).
description: Published as part of Mera-Rodríguez, Daniela, Serna, Francisco, Sosa-Calvo, Jeffrey, Lattke, John & Rabeling, Christian, 2020, A checklist of the non-leaf-cutting fungus-growing ants (Hymenoptera, Formicidae) from Colombia, with new biogeographic records, pp. 1205-1227 in Check List 16 (5) on page 1219, DOI: 10.15560/16.5.1205, http://zenodo.org/record/4059086
description: {"references": ["Sosa-Calvo J (2015) Systematics of the cryptic fungus-farming ant ge- nus Myrmicocrypta Fr. Smith, with the description of a new ge- nus and species of fungus-farming ants (Hymenoptera: Myrmicinae). PhD dissertation, University of Maryland, Maryland, 603 pp. https: // doi. org / 10.13016 / M 2 VS 6 M"]}
Measuring treatment fidelity to evidence-based practices in youth community mental health : a generalizability and decision study
Creators: name: Baker, Nichole
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: G study
Assessment
Fidelity
Mental health
Youth

description: Despite the potential links between fidelity to evidence-based practices and youth mental health outcomes (Collyer et al., 2020), there are no guidelines regarding the most efficient and reliable way to observationally measure the quantity and quality of evidence-based practices a youth receives in treatment. Multivariate ‘G’ and ‘D’ studies were conducted utilizing fidelity data from a randomized effectiveness trial of a modular, transdiagnostic treatment. Recordings from 1557 sessions, from 27 patients, across nine therapists were randomly coded by two of thirty trained raters. Balanced and unbalanced multivariate G studies were used to estimate the error variance associated with facets of therapists, clients, treatment location, sessions, and raters for competence and adherence scores. An additional G study examining the additional facet of interval was conducted utilizing binary adherence outcomes. D studies were then conducted to estimate the number of each facet needed to maximize measurement of adherence and competence at the therapist, client, and session levels. Results suggest that fidelity is best conceptualized as a client-level construct and requires one rater to code 12 sessions per client (across the beginning, middle, and end of treatment). Results from the interval analysis indicate that two raters would need to code ten intervals, for a total of 45-50 minutes of session, to achieve dependable session-level ratings of adherence. Limitations, implications for fidelity measurement generally, and future directions are discussed.
Controlling Light Through Optical Disordered Media : Transmission Matrix Approach
Creators: name: Popoff, S. M.
name: Lerosey, G.
name: Fink, M.
name: Boccara, A. C.
name: Gigan, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally measure the monochromatic transmission matrix (TM) of an optical multiple scattering medium using a spatial light modulator together with a phase-shifting interferometry measurement method. The TM contains all information needed to shape the scattered output field at will or to detect an image through the medium. We confront theory and experiment for these applications and we study the effect of noise on the reconstruction method. We also extracted from the TM informations about the statistical properties of the medium and the light transport whitin it. In particular, we are able to isolate the contributions of the Memory Effect (ME) and measure its attenuation length.
From Infoware to Infowar
Creators: name: Traub, Joseph F.
Publisher: name: Columbia University
Year: 1996
Subjects: Computer science

description: "I’ll discuss the six critical areas from May 1986. When I speak about them from my 1996 vantage, I’m giving only my own view; I’ve not had the benefit of discussing these opinions with the Board. Our number one concern in May 1986 was Competitiveness. How can the U.S. best ensure the continued leadership of its computer science and technology enterprise in the face of intensified global competition?"
Failover and Load Sharing in SIP Telephony
Creators: name: Singh, Kundan
name: Schulzrinne, Henning G.
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: We apply some of the existing web server redundancy techniques for high service availability and scalability to the relatively new IP telephony context. The paper compares various failover and load sharing methods for registration and call routing servers based on the Session Initiation Protocol (SIP). In particular, we consider the SIP server failover techniques based on the clients, DNS (Domain Name Service), database replication and IP address takeover, and the load sharing techniques using DNS, SIP identifiers, network address translators and servers with same IP addresses. Additionally, we present an overview of the failover mechanism we implemented in our test-bed using our SIP proxy and registration server and the open source MySQL database.
NON-VON's Performance on Certain Database Benchmarks
Creators: name: Hillyer, Bruce K.
name: Shaw, David Elliot
name: Nigam, Anil
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science

description: In a paper by Hawthorn and DeWitt, the projected performance of several proposed database machines was examined for three relational database queries. The present paper investigates the performance of a massively parallel machine called NON-VON for the same queries under comparable assumptions. In the case of simple queries, a NON-VON machine of comparable size to those considered by Hawthorn and DeWitt is found to be somewhat faster than the fastest machines examined in their study; for a more complex database operation, NON-VON is shown to be five to ten times faster than the fastest of these machines.
On the Design of Parallel Production System Machines: What's in a LIP?
Creators: name: Stolfo, Salvatore
Publisher: name: Columbia University
Year: 1983
Subjects: Computer science
Artificial intelligence

description: In a general manner we discuss the appropriateness of three classes of parallel computers for one AI programming methodology, Production Systems. The three classes considered are coarse-grain, fine-grain and very fine-grain parallel processors. We conjecture that each class is suitable for different Production System formalisms. Using current technology, we further project execution rates for two of these classes in the range of 10,000 Working Memory transactions per second.
Thermal Evolution of Neutron Stars in 2 Dimensions
Creators: name: Negreiros, Rodrigo
name: Schramm, Stefan
name: Weber, Fridolin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: There are many factors that contribute to the breaking of the spherical symmetry of a neutron star. Most notably is rotation, magnetic fields, and/or accretion of matter from companion stars. All these phenomena influence the macroscopic structures of neutron stars, but also impact their microscopic compositions. The purpose of this paper is to investigate the cooling of rotationally deformed, two-dimensional (2D) neutron stars in the framework of general relativity theory, with the ultimate goal of better understand the impact of 2D effects on the thermal evolution of such objects. The equations that govern the thermal evolution of rotating neutron stars are presented in this paper. The cooling of neutron stars with different frequencies is computed self-consistently by combining a fully general relativistic 2D rotation code with a general relativistic 2D cooling code. We show that rotation can significantly influence the thermal evolution of rotating neutron stars. Among the major new aspects are the appearances of hot spots on the poles, and an increase of the thermal coupling times between the core and the crust of rotating neutron stars. We show that this increase is independent of the microscopic properties of the stellar core, but depends only on the frequency of the star.
description: 8 pages, 6 figures, revised version
Automating Content Extraction of HTML Documents
Creators: name: Gupta, Suhit
name: Kaiser, Gail E.
name: Grimm, Peter
name: Starren, Justin
Publisher: name: Columbia University
Year: 2004
Subjects: Computer science

description: Web pages often contain clutter (such as unnecessary images and extraneous links) around the body of an article that distracts a user from actual content. Extraction of 'useful and relevant' content from web pages has many applications, including cell phone and PDA browsing, speech rendering for the visually impaired, and text summarization. Most approaches to making content more readable involve changing font size or removing HTML and data components such as images, which takes away from a webpage's inherent look and feel. Unlike 'Content Reformatting', which aims to reproduce the entire webpage in a more convenient form, our solution directly addresses 'Content Extraction'. We have developed a framework that employs an easily extensible set of techniques. It incorporates advantages of previous work on content extraction. Our key insight is to work with DOM trees, a W3C specified interface that allows programs to dynamically access document structure, rather than with raw HTML markup. We have implemented our approach in a publicly available Web proxy to extract content from HTML web pages. This proxy can be used both centrally, administered for groups of users, as well as by individuals for personal browsers. We have also, after receiving feedback from users about the proxy, created a revised version with improved performance and accessibility in mind.
Information-theoretic path planning and navigation
Creators: name: Pedram, Ali Reza
Publisher: name: The University of Texas at Austin
Year: 2023
Subjects: Motion planning
Information theory

description: Thanks to the wide availability of low-cost and high-performance sensing devices, obtaining a large amount of sensor data has become easier for robots in many applications. Nevertheless, operating a sensor at full capacity may not be the best strategy for resource-constrained robots, especially if it drains the robot’s scarce power or computational resources with little benefit. As sensor modalities increase, how to achieve a given task with minimum perceptual resources (e.g., with reduced sensing frequencies or sensor gains) becomes an increasingly relevant question. Specially in navigation tasks, it is crucial for autonomous agents to find the path plans which require low perception to be followed. This dissertation proposes a two-stage paradigm to reduce the perception cost in autonomous navigation. In the first stage, referred to as the offline path planning stage, a reference path plan requiring moderate navigation perception is sought in uncertain configuration space (the product space of mean and covariance). In the second stage, the online path following stage, the sensor modalities and closed-loop controller are deployed to closely follow the reference path. In the first phase, we introduce a novel path length function accounting for both travel and the expected perception costs. The continuity of the path length function with respect to the topology of the total variation metric is shown. We formulate the path planning problem as a shortest path problem with respect to the introduced cost conditioned by a collision avoidance constraint. We present sampling-based planning algorithms to solve the formulated shortest path problem and propose several improvements to increase their computational efficiency. Leveraging the continuity of the path length, we prove the proposed algorithms find the optimal path almost surely (with probability one) in the limit of a large number of samples. The first phase ends with a smoothing algorithm developed to eliminate the sharp turns in the paths sought by the sampling-based algorithms. For path smoothing, we devise novel collision avoidance constraints that guarantee safety in continuous-time (in transition between states). This dissertation formulates the path following stage as a joint control-sensing problem and develops an attention mechanism to follow the reference path with minimum perception cost (required bits of information). Several numerical simulations are provided to showcase the utility of the proposed algorithms and paradigm in reducing the perception costs, like the frequency of sensor measurements or the number of sensors that must be used simultaneously in navigation.
Estimating paper sheet process variations from scanned data using compressive sensing
Creators: name: Towfighi, Parisa
Publisher: name: University of British Columbia
Year: 2011

description: During paper fabrication, system actuators are used to control paper properties over the entire sheet on the basis of a restricted set of measurements taken from the moving sheet. From these measurements it is necessary to estimate the properties of the full paper sheet. The axis perpendicular to the direction of motion of the paper through the machine is referred to as the cross direction (CD), and the axis of the sheet motion itself is the machine direction (MD). Low pass filtering is commonly used in industrial practice to separate the slow vibrations in the cross direction from the typically faster variations in machine direction. Exponential low pass filtering can reconstruct the actual variations if uniform sampling has been carried out at a sampling rate that is at least twice the bandwidth of the original signal. Such conditions are almost never met in practice. To overcome this limitation, we propose here a novel algorithm based on the well-established theory of compressive sensing. The bandwidth constraints of conventional sampling can be avoided if certain general characteristics of the unknown signal are assumed to be known, and if a few computational conditions are satisfied. Compressive sensing can then estimate the signal with impressive accuracy from a minimal number of samples. This new technique requires that samples are collected in a random fashion. In this thesis, compressive sampling is applied to paper machine data. The data representation is optimized in an l1 basis and its resulting performance is evaluated using both industrial and simulated data. It should be noted that this approach has broad potential industrial application in situations where process constraints dictate the timing and location of available process data that is to be used for control and monitoring purposes.
Nonlinear Schroedinger Equation in the Presence of Uniform Acceleration
Creators: name: Plastino, Angel R.
name: Tsallis, Constantino
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a recently proposed nonlinear Schroedinger equation exhibiting soliton-like solutions of the power-law form $e_q^{i(kx-wt)}$, involving the $q$-exponential function which naturally emerges within nonextensive thermostatistics [$e_q^z \equiv [1+(1-q)z]^{1/(1-q)}$, with $e_1^z=e^z$]. Since these basic solutions behave like free particles, obeying $p=\hbar k$, $E=\hbar ω$ and $E=p^2/2m$ ($1 \le q<2$), it is relevant to investigate how they change under the effect of uniform acceleration, thus providing the first steps towards the application of the aforementioned nonlinear equation to the study of physical scenarios beyond free particle dynamics. We investigate first the behaviour of the power-law solutions under Galilean transformation and discuss the ensuing Doppler-like effects. We consider then constant acceleration, obtaining new solutions that can be equivalently regarded as describing a free particle viewed from an uniformly accelerated reference frame (with acceleration $a$) or a particle moving under a constant force $-ma$. The latter interpretation naturally leads to the evolution equation $i\hbar \frac{\partial}{\partial t}(\fracΦ{Φ_0}) = - \frac{1}{2-q}\frac{\hbar^2}{2m} \frac{\partial^2}{\partial x^2} [(\fracΦ{Φ_0})^{2-q}] + V(x)(\fracΦ{Φ_0})^{q}$ with $V(x)=max$. Remarkably enough, the potential $V$ couples to $Φ^q$, instead of coupling to $Φ$, as happens in the familiar linear case ($q=1$).
description: 4 pages, no figures
Data Management and a National DRI Strategy
Creators: name: Tuite, Sinead
Publisher: name: Zenodo
Year: 2019
Subjects: subject: national data services
subject: research data management
subject: canada
subject: digital research infrastructure
subject: https://dictionary.casrai.org/Research_data_management
subject: https://dictionary.casrai.org/Digital_infrastructure
subject: https://dictionary.casrai.org/Data_management

description: Closing keynote on a national digital research infrastructure strategy for Canada. For the National Data Services Framework Summit 2019.