cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Do developers respond to code stability warnings?
Creators: name: Foss, Sylvie L.
Publisher: name: University of British Columbia
Year: 2015

description: Ideally, developers would always release code without bugs. Given the impossibility of achieving this ideal, there has been growing interest in ways to alert a developer earlier in the development process to code that may be more bug prone. A recent study found Google developers were unsure of how to act on file-level bug prediction information provided during code reviews as developers were confused about how files were flagged and how potential problems indicated by flagged files could be addressed. We hypothesize that developers may find simpler information provided earlier than code reviews easier to act upon. We introduce a plugin we built called ChangeMarkup that indicates code age and commit sizes via per-line markers in the editor. To understand if this approach has value, we performed a field study with five industry participants working on JavaScript code; our rationale was that warnings might be of more use to developers working in a dynamic language. We found that participants were interested in whether code is recent but do not care precisely how recent and that participants are generally unwilling to change their work habits in response to code stability warnings, regardless of the indicated risk level of performing an edit. Reasons for this relucatance were limited choice as to which edits must be performed and how, a reliance on resilient company release procedures such as dark launching, and confidence in their own work. Based on participant feedback, we propose future adaptations of ChangeMarkup such as an adaptive plugin that anticipates developer activities and presents information accordingly, and a version further simplified to mark only the most recently committed code.
Comparison of LISA and Atom Interferometry for Gravitational Wave Astronomy in Space
Creators: name: Bender, Peter L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: One of the atom interferometer gravitational wave missions proposed by Dimopoulos et al.1 in 2008 was called AGIS-Sat. 2. It had a suggested gravitational wave sensitivity set by the atom state detection shot noise level that started at 1 mHz, was comparable to LISA sensitivity from 1 to about 20 mHz, and had better sensitivity from 20 to 500 mHz. The separation between the spacecraft was 1,000 km, with atom interferometers 200 m long and shades from sunlight used at each end. A careful analysis of many error sources was included, but requirements on the time-stability of both the laser wavefront aberrations and the atom temperatures in the atom clouds were not investigated. After including these considerations, the laser wavefront aberration stability requirement to meet the quoted sensitivity level is about 1\times10-8 wavelengths, and is far tighter than for LISA. Also, the temperature fluctuations between atom clouds have to be less than 1 pK. An alternate atom interferometer GW mission in Earth orbit called AGIS-LEO with 30 km satellite separation has been suggested recently. The reduction of wavefront aberration noise by sending the laser beam through a high-finesse mode-scrubbing optical cavity is discussed briefly, but the requirements on such a cavity are not given. Unfortunately, such an Earth-orbiting mission seems to be considerably more difficult to design than a non-geocentric mission and does not appear to have comparably attractive scientific goals.
description: Submitted to Proc. 46th Rencontres de Moriond: Gravitational Waves and Experimental Gravity, March 20 - 27, 2011, La Thuile, Italy
Thermodynamics of Lemaitre-Tolman-Bondi Model
Creators: name: Chakraborty, Subenoy
name: Mazumder, Nairwita
name: Biswas, Ritabrata
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Here we consider our universe as inhomogeneous spherically symmetric Lemaitre-Tolman-Bondi Model and analyze the thermodynamics of this model of the universe. The trapping horizon is calculated and is found to coincide with the apparent horizon. The Einstein field equations are shown to be equivalent with the unified first law of thermodynamics. Finally assuming the first law of thermodynamics validity of the generalized second law of thermodynamics is examined at the apparent horizon for the perfect fluid and at the event horizon for holographic dark energy.
description: 8 pages
Spectral Energy Distributions of Young Stars in IC 348: The Role of Disks in Angular Momentum Evolution of Young, Low-Mass Stars
Creators: name: Blanc, Thompson S. Le
name: Covey, Kevin R.
name: Stassun, Keivan G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Theoretical work suggests that a young star's angular momentum and rotation rate may be strongly influenced by magnetic interactions with its circumstellar disk. A generic prediction of these 'disk-locking' (DL) theories is that a disk-locked star will be forced to co-rotate with the Keplerian angular velocity of the inner edge of the disk. These theories have also been interpreted to suggest a correlation between young stars' rotation periods and the structural properties of their disks, such that slowly rotating stars possess close-in disks that enforce the star's slow rotation, whereas rapidly rotating stars possess anemic or evacuated inner disks that are unable to brake the stars and they spin up as they contract. To test these expectations, we model the SEDs of 33 young stars in IC 348 with known rotation periods and infrared excesses indicating the presence of disks. For each star, we match the observed spectral energy distribution, typically sampling 0.6-8.0 \mum, to a grid of 200,000 pre-computed star+disk radiative transfer models, from which we infer the disk's inner-truncation radius (R_trunc). We then compare this R_trunc to the disk's co-rotation radius (R_co), calculated from the star's rotation period. We do not find obvious differences in the disk R_trunc of slow vs. rapid rotators. This holds true both at the level of whether close-in disk material is present at all, and in analyzing the precise location of the inner disk edge relative to the R_co amongst the subset of stars with close-in disk material. One interpretation is that DL is unimportant for the IC 348 stars in our sample. Alternatively, if DL does operate, then it must operate on both the slow and rapid rotators, potentially producing both spin-up and spin-down torques, and the transition from the disk-locked state to the disk-released state must occur more rapidly than the stellar contraction timescale.
description: 52 pages, 37 figures, 2 tables Accepted by Astronomical Journal, 02 June, 2011
Numerical modeling of shallow flows including bottom topography and friction effects
Creators: name: Medviďová-Lukáčová, Mária
Publisher: name: TUHH Universitätsbibliothek
Year: 2004
Subjects: subject: shallow water equations, finite volume evolution Galerkin method, river simulations, well-balanced scheme, hyperbolic balance laws
subject: 510: Mathematik
subject: Finite-Volumen-Methode
subject: Galerkin-Methode
subject: Erhaltungssatz
subject: 510
subject: 65L05:Initial value problems
subject: 65M06:Finite difference methods
subject: 65L05
subject: 65M06

description: The aim of the paper is numerical modeling of the shallow water equation with source terms by genuinely multdimensional finite volume evolution Galerkin schemes. The shallow water system, or its one-dimensional analogy the Saint-Venant equation, is used extensively for numerical simulation of natural rivers. Mathematically the shallow water system belongs to the class of balance laws. A special treatment of the source terms describing the bottom topography as well as frictions effects is necessary in order to reflect their balance with the gradients of fluxes. We present behaviour of our new well-balance FVEG scheme for several benchmark test problems and compare our results with those obtained by the finite element scheme of Teschke et al. used for practical river simulations.
Generalized Parton Distributions for the Proton in Position Space : Non-Zero Skewness
Creators: name: Manohar, R.
name: Mukherjee, A.
name: Chakrabarti, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the generalized parton distributions (GPDs) for u and d quarks in a proton in transverse and longitudinal position space using a recent phenomenological parametrization. We take nonzero skewness ζand consider the region x> ζ. Impact parameter space representation of the GPD E is found to depend sharply on the parameters used within the model, in particular in the low x region. In longitudinal position space a diffraction pattern is observed, as seen before in several other model
description: 18 pages, Latex, 7 figs
Physical Conditions in Barnard's Loop, Components of the Orion-Eridanus Bubble, and Implications for the WIM Component of the ISM
Creators: name: O'Dell, C. R.
name: Ferland, G. J.
name: Porter, R. L.
name: van Hoof, P. A. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have supplemented existing spectra of Barnard's Loop with high accuracy spectrophotometry of one new position. Cloudy photoionization models were calculated for a variety of ionization parameters and stellar temperatures and compared with the observations. After testing the procedure with recent observations of M43, we establish that Barnard's Loop is photoionized by four candidate ionizing stars, but agreement between the models and observations is only possible if Barnard's Loop is enhanced in heavy elements by about a factor of 1.4. Barnard's Loop is very similar in properties to the brightest components of the Orion-Eridanus Bubble and the Warm Ionized Medium (WIM). We are able to establish models that bound the range populated in low-ionization color-color diagrams (I([SII])/I(Hα) versus I([NII])/I(Hα)) using only a limited range of ionization parameters and stellar temperatures. Previously established variations in the relative abundance of heavy elements render uncertain the most common method of determining electron temperatures for components of the Orion-Eridanus Bubble and the WIM based on only the I([NII])/I(Hα) ratio, although we confirm that the lowest surface brightness components of the WIM are on average of higher electron temperature. The electron temperatures for a few high surface brightness WIM components determined by direct methods are comparable to those of classical bright H II regions. In contrast, the low surface brightness HII regions studied by the Wisconsin Hα Mapper are of lower temperatures than the classical bright HII regions.
SM_reproducibility.pdf from Human mortality at extreme age
Creators: name: Belzile, Léo R.
name: Davison, Anthony C.
name: Rootzén, Holger
name: Zholud, Dmitrii
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Statistics
subject: FOS: Mathematics
subject: 111602 Human Biophysics
subject: FOS: Basic medicine
subject: 80109 Pattern Recognition and Data Mining
subject: FOS: Computer and information sciences

description: Explains how to obtain the data and code needed to reproduce the study.
Long-range steady state density profiles induced by localized drive
Creators: name: Sadhu, Tridib
name: Majumdar, Satya N.
name: Mukamel, David
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the presence of a localized drive in an otherwise diffusive system results in steady-state density and current profiles that decay algebraically to their global average value, away from the drive in two or higher dimensions. An analogy to an electrostatic problem is established, whereby the density profile induced by a driving bond maps onto the electrostatic potential due to an electric dipole located along the bond. The dipole strength is proportional to the drive, and is determined self-consistently by solving the electrostatic problem. The profile resulting from a localized configuration of more than one driving bond can be straightforwardly determined by the superposition principle of electrostatics. This picture is shown to hold even in the presence of exclusion interaction between particles.
description: Authors name has been corrected
Throughput and Latency in Finite-Buffer Line Networks
Creators: name: Vellambi, Badri N.
name: Torabkhani, Nima
name: Fekri, Faramarz
Publisher: name: arXiv
Year: 2010
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This work investigates the effect of finite buffer sizes on the throughput capacity and packet delay of line networks with packet erasure links that have perfect feedback. These performance measures are shown to be linked to the stationary distribution of an underlying irreducible Markov chain that models the system exactly. Using simple strategies, bounds on the throughput capacity are derived. The work then presents two iterative schemes to approximate the steady-state distribution of node occupancies by decoupling the chain to smaller queueing blocks. These approximate solutions are used to understand the effect of buffer sizes on throughput capacity and the distribution of packet delay. Using the exact modeling for line networks, it is shown that the throughput capacity is unaltered in the absence of hop-by-hop feedback provided packet-level network coding is allowed. Finally, using simulations, it is confirmed that the proposed framework yields accurate estimates of the throughput capacity and delay distribution and captures the vital trends and tradeoffs in these networks.
description: 19 pages, 14 figures, accepted in IEEE Transactions on Information Theory
Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
Creators: name: Kidonakis, Nikolaos
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: I present the resummation of collinear and soft gluon corrections to single top quark production in the t channel at next-to-next-to-leading logarithm (NNLL) accuracy using two-loop soft anomalous dimensions. The expansion of the resummed cross section yields approximate next-to-next-to-leading order (NNLO) cross sections. Numerical results for t-channel single top quark (or single antitop) production at the Tevatron and the LHC are presented, including the dependence of the cross sections on the top quark mass, and the uncertainties from scale variation and parton distributions. Combined results for all single top quark production channels are also given.
description: 11 pages, 4 figures
Data Visualization for Healthcare, Education and Military spending for top ten G-20 countries
Creators: name: , Joseph
Publisher: name: Zenodo
Year: 2019

description: Data Source – The Organization for Economic Co-operation and Development (OECD) and World Bank Data bank.

Got G-20 countries data from OECD and World Bank.

Narrow down the selection to top ten countries in Healthcare, Educational and Military spending.

Time Limit: I Used six years of data from 2010 to 2015 for my data analysis.

Used Google API, Bar charts, Geo Maps, Stacked Bar Chart, Time series Line Chart and  Pie charts to visualize my data.
description: Data Visualization for Healthcare, Education and Military spending for top ten G-20 countries
description: {"references": ["https://zenodo.org/deposit/2587031"]}
The Flow of Power-Law Fluids in Axisymmetric Corrugated Tubes
Creators: name: Sochi, Taha
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In this article we present an analytical method for deriving the relationship between the pressure drop and flow rate in laminar flow regimes, and apply it to the flow of power-law fluids through axially-symmetric corrugated tubes. The method, which is general with regards to fluid and tube shape within certain restrictions, can also be used as a foundation for numerical integration where analytical expressions are hard to obtain due to mathematical or practical complexities. Five converging-diverging geometries are used as examples to illustrate the application of this method.
description: 16 pages, 5 figures
Essays on financing business innovation
Creators: name: Ugrinovska, Leana
Publisher: name: The Australian National University
Year: 2022

description: The motivation for this thesis stems from the importance of innovation activity for the economy. The study consists of three related essays which provide new theoretical insights and empirical evidence on the use of public financial instruments for financing business innovation. Specifically, the study provides analysis of the potential role of the financing instrument, revenue-contingent loans (RCLs), with respect to innovation policy for business, in comparison to the conventional system of grant support. The first essay, 'The theory of revenue-contingent loans for business innovations', takes a theoretical approach to investigating the influence of different financing options (debt, equity and RCLs) on cash flow and on the efforts of innovators, and provides a simple theoretical model for the use of RCLs in this capacity. The second essay, 'Estimating government subsidies with revenue-contingent loans for business innovations in Australia', provides calculations of government subsidies associated with the use of RCLs as an innovation financing mechanism, using a recent sample of Australian firms with different design parameters. Subsidy estimates are provided for different levels of debt and a range of parameters, including interest rates, repayment rates, loan surcharges and grace periods. The third essay, 'An impact evaluation of direct public financial support for business innovation activities in Australia', estimates for the first time the effects of direct public financial support (grants) for innovative businesses in Australia. Using Australian Bureau of Statistics (ABS) firm-level micro-data, estimates are derived concerning the extent to which firms increase innovation in response to direct government financial incentives. The results suggest significant positive effects for innovation outputs and, to a lesser extent, for business performance indicators. However, important caveats are explained with respect to the limitations of the methods used.
Ex manubiis : literary representations of Flavian spectacle
Creators: name: Odell, Heather Miranda
Publisher: name: University of British Columbia
Year: 2015

description: The Roman emperor Vespasian was declared emperor in absentia at the end of 69 CE, the Year of the Four Emperors; he was the first man from outside the Julio-Claudian family to hold imperial power for more than a few months, remaining in power until his death in 79 CE and succeeded by his son Titus. Vespasian won the conflict with military force, but once in power he faced the unique challenge of demonstrating the legitimacy of his reign without the pedigree of an old Roman family name to draw upon, and so he relied on other means of stabilizing his power. Vespasian returned to Rome bearing an influx of wealth from the Judaean War, and he funded lavish spectacles and buildings like the Colosseum from the spoils (ex manubiis). Vespasian’s buildings and spectacles were impressive displays of his wealth and generosity to the people of Rome, but spectacles can only awe and impress the immediately present audience in Rome for the short time that they last; the Colosseum stays standing as a reminder, but it is inert without its shows. Written descriptions of the spectacle, on the other hand, could travel widely and cheaply, extending the reach of Vespasian’s grand displays through time and space. This thesis is concerned with two such pieces of writing: Josephus’ description in Bellum Judaicum of Vespasian and Titus’ double triumph in 71 CE; and Martial’s Liber Spectaculorum, a collection of epigrams about the inaugural games of the Colosseum in 80 CE. I argue that these literary representations of spectacle effectively reproduced the original spectacles for the reading audience through a variety of rhetorical and literary techniques, ultimately presenting an affirmative view of Flavian rule over the Roman empire, and Roman rule over the world.
OKSITOTSIN PEPTIDINING FIZIOLOGIK VA PSIXOLOGIK TA'SIRI
Creators: name: bak. Shodiyev Samandar Rajab og'li bak. Shoymatova Xolida Qudrat qizi v.v.b. dots. Xolmurosdov Bahodir Bahrom o'g'li  QDTU Shahrisabz oziq-ovqat muhandisligi fakulteti
Publisher: name: Zenodo
Year: 2025

description: Oksitotsin – gipotalamusda sintezlanadigan va gipofiz orqali qonga chiqariladigan muhim peptid gormon. U fiziologik jarayonlarni boshqarib, stressni kamaytiradi, qon bosimini pasaytiradi va metabolizmga ta’sir qiladi. Oksitotsin ovqatlanish odatlarini shakllantirib, ichak mikroflorasini yaxshilaydi. Uning tanqisligi depressiya, autizm, yurak kasalliklari va semizlik bilan bog‘liq. Shuningdek, u tug‘ruq va laktatsiyani rag‘batlantirishda ham muhim rol o‘ynaydi. Tadqiqotlar oksitotsinning ruhiy salomatlik va organizmga ta’sirini chuqur o‘rganmoqda.

Kalit so’zlar: Oksitotsin, gormon, fiziologiya, gipotalamus, homeostaz, stress, metabolizm, immunitet, qon bosimi, nevrologiya
Uncompensated magnetization and exchange-bias field in La$_{0.7}$Sr$_{0.3}$MnO$_3$/YMnO$_3$ bilayers: The influence of the ferromagnetic layer
Creators: name: Zandalazini, C.
name: Esquinazi, P.
name: Bridoux, G.
name: Barzola-Quiquia, J.
name: Ohldag, H.
name: Arenholz, E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied the magnetic behavior of bilayers of multiferroic and nominally antiferromagnetic o-YMnO$_3$ (375~nm thick) and ferromagnetic La$_{0.7}$Sr$_{0.3}$MnO$_3$ and La$_{0.67}$Ca$_{0.33}$MnO$_3$ ($8 \ldots 225~$nm), in particular the vertical magnetization shift $M_E$ and exchange bias field $H_E$ for different thickness and magnetic dilution of the ferromagnetic layer at different temperatures and cooling fields. We have found very large $M_E$ shifts equivalent to up to 100\% of the saturation value of the o-YMO layer alone. The overall behavior indicates that the properties of the ferromagnetic layer contribute substantially to the $M_E$ shift and that this does not correlate straightforwardly with the measured exchange bias field $H_E$.
description: 10 figures, 8 pages
Well-balanced finite volume evolution Galerkin methods for the shallow water equations with source terms
Creators: name: Medviďová-Lukáčová, Mária
name: Vlk, Zdenek
Publisher: name: TUHH Universitätsbibliothek
Year: 2004
Subjects: subject: well-balanced methods
subject: finite volume evolution Galerkin schemes
subject: shallow water equations
subject: trully multidimensional finite volume methods
subject: 510: Mathematik
subject: Evolutionsoperator
subject: Galerkin-Methode
subject: Erhaltungssatz
subject: 510
subject: 76W05:Magnetohydrodynamics and electrohydrodynamics
subject: 76W05

description: The goal of this paper is to present a new well-balanced genuinely multidimensional high-resolution finite volume evolution Galerkin method for systems of balance laws. The derivation of the method will be illustrated for the shallow water equation with geometrical source term modelling the bottom topography. The results can be generalized to more complex systems of balance laws
title: Effects Of The Space Environment On The Performance Of SMILE SXI CCDs
Creators: name: Buggey, Thomas
Publisher: name: The Open University
Year: 2021

description: This thesis investigates the effects of the hazardous space environment on the performance of SMILE SXI CCDs, split between the roles of radiation and micrometeoroid damage. The radiation damage work focuses on developing an analytical technique to guide experimental CCD charge transfer optimisation, which is often a significantly time-consuming process. The technique is initially used to inform SXI CCD optimal clocking speeds and subsequently used to predict in-orbit performance benefits of different CCD operation modes. The first key result was the predicted charge transfer performance improvement from implementing tri-level clocking in the SMILE CCDs being less than 7%, which led to the decision to not implement it in the drive electronics. The second key result, related to radiation damage in a cryogenically irradiated CCD280, was the analysis of an unstable defect found to have a half-life of approximately 4 hours. The final key result is that the thermal cycling of SXI in-orbit will not have a noticeable effect on the defect landscape and hence CTI during the 3-year science lifetime.

 The micrometeoroid work focuses on development of a framework to quantify the effects of micrometeoroid impacts in CCD-based soft X-ray space telescopes. The work is tailored specifically for SMILE SXI but can be used in future CCD-based soft X-ray space missions, or any mission that will use silicon micropore optics. The key result of the analysis was the prediction that between 20 and 100 micrometeoroids of a least 1×10-6 m diameter will strike the CCDs of SMILE SXI over 3 years. Additional analysis was carried out using crater damage equations to estimate the number of pixels affected by the number of micrometeoroid impacts stated above. Finally, a bespoke experimental setup was built and tested by the author, in preparation for a micrometeoroid experiment testing campaign.
OPTIMIZATION OF ENDOSCOPIC TREATMENT METHODS IN PATIENTS WITH ACUTE PANCREATITIS.
Creators: name: Khojimetov, Davron
name: Akbarov, Farrux
Publisher: name: Zenodo
Year: 2025

description: Acute pancreatitis (AP) is a serious pathology of the abdominal organs, which to this day is one of the most important problems of emergency abdominal surgery. Indeed, the incidence and consistently high mortality rates are confirmed by the indicators. The etiological factors of pancreatitis are mainly gallstone disease, alimentary tract, and alcoholism. Acute pancreatitis of biliary etiology occurs in about 30-50% of cases in European and North American countries, while the overall mortality rate is about 10% and has almost no tendency to decrease. With destructive pancreatitis, pancreatic necrosis, it reaches 75%.
EFFECTIVENESS OF DRIP IRRIGATION METHOD FOR COTTON IN SALINE SOILS
Creators: name: Kuziev, F.S.
Publisher: name: Zenodo
Year: 2025

description: This article presents the results of scientific research aimed at developing an irrigation regime for cultivating the Bukhara-102 cotton variety under the conditions of light loamy soils with salinity in the Bukhara region. The study focuses on identifying optimal elements of drip irrigation technology for these conditions. The efficiency of drip irrigation techniques in watering the Bukhara-102 cotton variety has been examined.
Reaction-diffusion front crossing a local defect
Creators: name: Caputo, Jean-Guy
name: Sarels, Benoit
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The interaction of a Zeldovich reaction-diffusion front with a localized defect is studied numerically and analytically. For the analysis, we start from conservation laws and develop simple collective variable ordinary differential equations for the front position and width. Their solutions are in good agreement with the solutions of the full problem. Finally using this reduced model, we explain the pinning of the front on a large defect and obtain a quantitative criterion.
An evolution Galerkin scheme for the shallow water magnetohydrodynamic (SMHD) equations in two space dimensions
Creators: name: Kröger, Tim
name: Medviďová-Lukáčová, Mária
Publisher: name: TUHH Universitätsbibliothek
Year: 2004
Subjects: subject: genuinely multidimensional schemes
subject: hyperbolic systems
subject: shallow water magnetohydrodynamic equation
subject: finite volume methods
subject: 510: Mathematik
subject: Evolutionsoperator
subject: Galerkin-Methode
subject: Erhaltungssatz
subject: Magnetohydrodynamische Gleichung
subject: 510
subject: 35L45:Initial value problems for hyperbolic systems of first-order PDE
subject: 35L67:Shocks and singularities
subject: 65M25:Method of characteristics
subject: 76W05:Magnetohydrodynamics and electrohydrodynamics
subject: 35L65:Conservation laws
subject: 65M06:Finite difference methods
subject: 35L67
subject: 35L45
subject: 65M06
subject: 35L65
subject: 76W05
subject: 65M25

description: In this paper we propose a new finite volume evolution Galerkin(FVEG) scheme for the shallow water magnetohydrodynamic (SMHD)equations. We apply the exact evolution operator already used in our earlier publications to the SMHD system. Then, we approximate the evolution operator in a general way which does not exploit any particular property of the SMHD equations and should thus be applicable to arbitrary systems of hyperbolic conservation laws in two space dimensions. In particular, we investigate more deeply the approximation of the spatial derivatives which appear in the evolution operator. The divergence free condition is satisfied discretely, i.e. at each vertex. First numerical results confirm reliability of the numerical scheme.
Tidal Evolution of a Secularly Interacting Planetary System
Creators: name: Greenberg, Richard
name: Van Laerhoven, Christa
Publisher: name: arXiv
Year: 2011
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In a multi-planet system, a gradual change in one planet's semi-major axis will affect the eccentricities of all the planets, as angular momentum is distributed via secular interactions. If tidal dissipation in the planet is the cause of the change in semi-major axis, it also damps that planet's eccentricity, which in turn also contributes to the evolution of all the eccentricities. Formulae quantifying the combined effects on the whole system due to semi-major axis changes, as well as eccentricity damping, are derived here for a two-planet system. The CoRoT 7 system is considered as an example.
description: Accepted for publication in the Astrophysical Journal, 17 pages, including 1 figure
Novel Cytokine Multiplex Assay for Tear Fluid Analysis in Sjogren’s Syndrome
Creators: name: Willems, Bernd
name: Tong, Louis
name: Minh, Tue Dang Thi
name: Pham, Ngoc Dong
name: Nguyen, Xuan Hiep
name: Zumbansen, Markus
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Purpose: Sjögren’s syndrome (SS) is an autoimmune disease associated with ocular surface inflammation. The goals of this study were to establish a novel bead-based protein microarray for simultaneous analysis of 11 cytokines from tear fluid collected with Schirmer strips from patients with SS. Methods: Three to ten microliter of tear fluid was collected with Schirmer strips from both eyes of 13 healthy controls and 12 SS patients. Tear fluid was eluted from the Schirmer strips, total protein and concentrations of 11 different cytokines were analyzed. Results: The multiplex assay demonstrated high assay sensitivity with LoDs between 1.4 and 55.3 pg/µl with mean CVs between 3.7% and 9.7%. Statistically significant upregulation (p Conclusion: The assay offers analytical reliability for quantification of biomarkers in small amounts of tear fluid with potential utility for treatment monitoring of SS and other types of Dry Eye Disease.
Algebraic characterization of simple closed curves via Turaev's cobracket
Creators: name: Chas, Moira
name: Krongold, Fabiana
Publisher: name: arXiv
Year: 2010
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M99 (Primary), 17B62 (Secondary)

description: The vector space $\V$ generated by the conjugacy classes in the fundamental group of an orientable surface has a natural Lie cobracket $\mapδ{\V}{\V\times \V}$. For negatively curved surfaces, $δ$ can be computed from a geodesic representative as a sum over transversal self-intersection points. In particular $δ$ is zero for any power of an embedded simple closed curve. Denote by Turaev(k) the statement that $δ(x^k) = 0$ if and only if the nonpower conjugacy class $x$ is represented by an embedded curve. Computer implementation of the cobracket delta unearthed counterexamples to Turaev(1) on every surface with negative Euler characteristic except the pair of pants. Computer search have verified Turaev(2) for hundreds of millions of the shortest classes. In this paper we prove Turaev(k) for $k=3,4,5,\dots$ for surfaces with boundary. Turaev himself introduced the cobracket in the 80's and wondered about the relation with embedded curves, in particular asking if Turaev (1) might be true. We give an application of our result to the curve complex. We show that a permutation of the set of free homotopy classes that commutes with the cobracket and the power operation is induced by an element of the mapping class group.
description: 15 pages, 2 figures. arXiv admin note: substantial text overlap with arXiv:0801.3944
Abstract perturbed Krylov methods
Creators: name: Zemke, Jens-Peter M.
Publisher: name: TUHH Universitätsbibliothek
Year: 2005
Subjects: subject: Abstract perturbed Krylov method
subject: inexact Krylov method
subject: finite precision
subject: Hessenberg matrix
subject: basis polynomial
subject: 510: Mathematik
subject: Krylov-Verfahren
subject: 510
subject: 65F20:Overdetermined systems, pseudoinverses
subject: 65F15:Eigenvalues, eigenvectors
subject: 15A15:Determinants, permanents, other special matrix functions
subject: 65F10:Iterative methods for linear systems
subject: 15A24:Matrix equations and identities
subject: 65Y20:Complexity and performance of numerical algorithms
subject: 65F15
subject: 15A24
subject: 65F10
subject: 15A15
subject: 65F20
subject: 65Y20

description: We introduce the framework of abstract perturbed Krylov methods''. This is a new and unifying point of view on Krylov subspace methods based solely on the matrix equation $AQ_k+F_k=Q_{k+1}underline{C}_k=Q_kC_k+q_{k+1}c_{k+1,k}e_k^T$ and the assumption that the matrix $C_k$ is unreduced Hessenberg. We give polynomial expressions relating the Ritz vectors, (Q)OR iterates and (Q)MR iterates to the starting vector $q_1$ and the perturbation terms ${f_l}_{l=1}^k$. The properties of these polynomials and similarities between them are analyzed in some detail. The results suggest the interpretation of abstract perturbed Krylov methods as additive overlay of several abstract exact Krylov methods.
Personalized Data Set for Analysis
Creators: name: Gupta, Vishal
name: Saxena, Ashutosh
Publisher: name: arXiv
Year: 2010
Subjects: subject: Databases (cs.DB)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Data Management portfolio within an organization has seen an upsurge in initiatives for compliance, security, repurposing and storage within and outside the organization. When such initiatives are being put to practice care must be taken while granting access to data repositories for analysis and mining activities. Also, initiatives such as Master Data Management, cloud computing and self service business intelligence have raised concerns in the arena of regulatory compliance and data privacy, especially when a large data set of an organization are being outsourced for testing, consolidation and data management. Here, an approach is presented where a new service layer is introduced, by data governance group, in the architecture for data management and can be used for preserving privacy of sensitive information.
description: 8 pages, 3 Diagrams, 1 Table, International Journal of Database Management Systems (IJDMS)
Map of land of Theodorus Bergen west of Third Avenue in the Eighth Ward of the city of Brooklyn : as surveyed December 1853 by T.G. Bergen
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 1853
Subjects: Real property--New York (State)--New York--Maps.
Landowners--New York (State)--New York--Maps.

description: Cadastral map covering area bounded by 57th St., 3rd Ave., 54th St., and New York Bay. Shows property (including lot numbers, dimensions, and buildings), and names of landowners
BO'LАJАK O'QITUVCHILАRDА IJОDIY O'Z-O'ZINI RIVОJLАNTIRISHNING INNОVАTSIОN MЕTОDLАRI
Creators: name: Аripоv, Zоirjоn
Publisher: name: Zenodo
Year: 2025

description: Dunyoda turli xil kasblar juda ko’p, o’qtuvchilik dunyodagi kasblardan farq qilib, pedagoglik kasbi kishilik tarixining butun davomida har bir ijtimoiy formatsiyani qaror toptirish va rivojlantirishga xizmat qiladigan eng muhim doimiy shart-sharoitlardan biridir. Buning sababi shundaki, tarbiya muayyan va eng muhim ijtimoiy ehtiyoj tariqasida juda qadimgi zamonlardayoq vujudga kelgan bo’lib, u yosh avlodni tayyorlashni va pedagogik g’oyalar hamda mussasalarni kishilarning g’oyat zarur talabi qilib qo’ygan. O’qituvchilik kasbi to’xtovsiz o’sib bormoqda, takomillashmokda va yangi mazmun bilan boyimoqda.
Präventionsdienstleistungen im Internet kundenorientiert gestalten : Erfahrungen aus dem Projekt Prävention online
Creators: name: Ziegler, Susanne
name: Geringer, Gabi
Publisher: name: TUHH Universitätsbibliothek
Year: 2002
Subjects: subject: 330: Wirtschaft
subject: 54.84:Webmanagement
subject: 85.40:Marketing
subject: Informationsmarkt / Online-Recherche
subject: Electronic Commerce
subject: Dienstleistungsbetrieb
subject: Kundenorientierung
subject: 85.40
subject: 54.84
subject: 330

description: Internet-Marktplätze für Präventionsdienstleister können ein beträchtliches Nutzenpotential entfalten. Sie erhöhen das Qualitätsbewußtsein, machen Kundenprozesse effektiver und unterstützen die Selbstbefähigung der Kunden. Sie bieten vielfältige Chancen für Allianzen, Kooperationen und Synergien, und sie intensivieren den Wissenstransfer zwischen Institutionen, Professionen und Akteuren. Sie bieten die Möglichkeit, neue und interessante Angebote zu gestalten und den virtuellen Geschäftraum Internet effizient zu nutzen. Das Projekt Prävention online ist ein Beispiel dafür, wie das Potential realisiert werden kann.
Interfacial performance evolution of ceramics-in-polymer composite electrolyte in solid-state lithium metal batteries
Creators: name: Cheng, Ao
name: Sun, Linlin
name: Menga, Nicola
name: Yang, Wanyou
name: Zhang, Xin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The incorporation of ceramics into polymers, forming solid composite electrolytes (SCEs) leads to enhanced electrical performance of all-solid-state lithium metal batteries. This is because the dispersed ceramics particles increase the ionic conductivity, while the polymer matrix leads to better contact performance between the electrolyte and the electrode. In this study, we present a model, based on Hybrid Elements Methods, for the time-dependent Li metal and SCE rough interface mechanics, taking into account for the oxide (ceramics) inclusions (using the Equivalent Inclusion method), and the viscoelasticity of the matrix. We study the effect of LLTO particle size, weight concentration, and spatial distribution on the interface mechanical and electrical response. Moreover, considering the viscoelastic spectrum of a real PEO matrix, under a given stack pressure, we investigate the evolution over time of the mechanical and electrical performance of the interface. The presented theoretical/numerical model might be pivotal in tailoring the development of advanced solid state batteries with superior performance; indeed, we found that conditions in the SCE mixture which optimize both the contact resistivity and the interface stability in time.
The Stellar Content of Obscured Galactic Giant HII Regions. VII. W3
Creators: name: Navarete, F.
name: Figueredo, E.
name: Damineli, A.
name: Moisés, A. P.
name: Blum, R. D.
name: Conti, P. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Spectrophotometric distances in the K band have been reported by different authors for a number of obscured Galactic HII regions. Almost 50% of them show large discrepancies compared to the classical method using radial velocities measured in the radio spectral region. In order to provide a crucial test of both methods, we selected a target which does not present particular difficulty for any method and which has been measured by as many techniques as possible. The W3 star forming complex, located in the Perseus arm, offers a splendid opportunity for such a task. We used the NIFS spectrograph on the Frederick C. Gillett Gemini North telescope to classify candidate "naked photosphere" OB stars based on 2MASS photometry. Two of the targets are revealed to be mid O-type main sequence stars leading to a distance of d = 2.20 kpc. This is in excellent agreement with the spectrophotometric distance derived in the optical band (d = 2.18 kpc, Humphreys 1978) and with a measurement of the W3 trigonometric parallax (d = 1.95 kpc, Xu et al. 2006). Such results confirm that the spectrophotometric distances in the K band are reliable. The radio derived kinematic distance, on the contrary, gives a distance twice as large (d = 4.2 kpc, Russeil 2003). This indicates that this region of Perseus arm does not follow the Galactic rotation curve, and this may be the case also for other HII regions for which discrepancies have been found.
Analysis of unconstrained nonlinear MPC schemes with time varying control horizon
Creators: name: Grüne, Lars
name: Pannek, Jürgen
name: Seehafer, Martin
name: Worthmann, Karl
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: For discrete time nonlinear systems satisfying an exponential or finite time controllability assumption, we present an analytical formula for a suboptimality estimate for model predictive control schemes without stabilizing terminal constraints. Based on our formula, we perform a detailed analysis of the impact of the optimization horizon and the possibly time varying control horizon on stability and performance of the closed loop.
Management of R&D Cooperation
Creators: name: Müller, Christian
name: Herstatt, Cornelius
Publisher: name: TUHH Universitätsbibliothek
Year: 1999
Subjects: subject: 85.15:Forschung und Entwicklung
subject: Unternehmenskooperation
subject: Produktentwicklung
subject: 85.15
subject: 330

description: Because of the high degree of technological complexity and the increasing convergence of new technologies, it is becoming more and more difficult to develop advanced products for those companies who solely rely on their own in-house core competencies´. One possible response made to these rising requirements is the consideration of cooperation with other companies. Since prior research on cooperation is extensive in its theoretical scope and diverse in its disciplinary bases, it seems appropriate to give a short overview on the literature. In this article, we pursue two purposes: Firstly, we provide a brief and comprehensive picture of theoretical findings on technology-related cooperation pertinent to practitioners by using a process-oriented framework which helps us to integrate the existing literature from different academic disciplines. Secondly, while management scholars have primarily tended to focus on certain research streams, we draw attention to some issues not sufficiently covered by the literature today. We highlight the importance of the technological content (incremental vs. breakthrough and product vs. process innovations) as well as the orientation of the cooperation (horizontal vs. lateral) which should be considered in more detail in future research.
The ACS Fornax Cluster Survey. X. Color Gradients of Globular Cluster Systems in Early-Type Galaxies
Creators: name: Liu, Chengze
name: Peng, Eric W.
name: Jordan, Andres
name: Ferrarese, Laura
name: Blakeslee, John P.
name: Cote, Patrick
name: Mei, Simona
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use the largest homogeneous sample of globular clusters (GCs), drawn from the ACSVCS and ACSFCS, to investigate the color gradients of GC systems in 76 early-type galaxies. We find that most GC systems possess an obvious negative gradient in g-z color (bluer outwards). For GC systems displaying color bimodality, both metal-rich and metal-poor GC subpopulations present shallower but significant color gradients on average, and the mean gradients of these two subpopulations are of roughly equal strength. The FOV of ACS mainly restricts us to measuring the inner gradients of GC systems. These gradients, however, can introduce an aperture bias when measuring the mean colors of GC subpopulations from relatively narrow central pointings. Inferred corrections to previous work imply a reduced significance for the relation between the mean color of metal-poor GCs and their host galaxy luminosity. The GC color gradients also show a dependence with host galaxy mass where the gradiens are weakest at the ends of the mass spectrum--in massive galaxies and dwarf galaxies--and strongest in galaxies of intermediate mass, around a stellar mass of M_stellar~10^10M_sun. We also measure color gradients for field stars in the host galaxies. We find that GC color gradients are systematically steeper than field star color gradients, but the shape of the gradient-mass relation is the same for both. If gradients are caused by rapid dissipational collapse and weakened by merging, these color gradients support a picture where the inner GC systems of most intermediate-mass and massive galaxies formed early and rapidly with the most massive galaxies having experienced greater merging. The lack of strong gradients in the GC systems of dwarfs, which probably have not experienced many recent major mergers, suggests that low mass halos were inefficient at retaining and mixing metals during the epoch of GC formation.
description: 11 pages, 5 figures, Accepted for publication in ApJ
การพัฒนาผลการเรียนรู้ เรื่อง การบันทึกบัญชีโดยใช้โปรแกรม SmartBizของนักศึกษาระดับปริญญาตรี ชั้นปีที่ 2 สาขาวิชาการบัญชีโดยใช้เทคนิควิธีสอนแบบร่วมมือ
Creators: name: นิอร  น้ำใจดี
Publisher: name: Siam Technology College,Bangkok,Thailand
Year: 2018
Subjects: Using cooperative teaching techniques

description: วารสารนวัตกรรมและเทคโนโลยีการเรียนรู้วิทยาลัยเทคโนโลยีสยาม, 1, 2, 29