cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Developing elementary science skills: Instructional effectiveness and path independence
Creators: name: Strand-Cary, Mari
name: Klahr, David
Publisher: name: Carnegie Mellon University
Year: 2008
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: We explore the immediate and longer term consequences of different types of instruction about a central topic in middle school science: the “Control of Variables Strategy” (CVS). CVS represents the procedural and conceptual basis for designing simple, unconfounded experiments, such that unambiguous causal inferences can be made. CVS appears to be what has been called a “developmentally-secondary” process, because even though infants and pre-schoolers can make simple causal inferences from data, middle school children do poorly at CVS unless they receive instruction on this important topic in the science curriculum. In this study, 72 third, fourth, and fifth-grade students were taught CVS via two instructional methods located at extreme points on the direct-to-discovery spectrum with respect to the amount of guidance, information, support, teacher control, and feedback provided during training. Our design included near- and far-transfer measures (at 1 week, 3 months and 3 years). There were two primary outcomes, both of which replicated and partially extended earlier work by Klahr and Nigam (2004) [Klahr, D., & Nigam, M. (2004). The equivalence of learning paths in early science instruction: Effects of direct instruction and discovery learning. Psychological Science, 15, 661–667] First, at each of the three grade levels, many more children learned CVS in the explicit condition than in the exploration condition. Second, but equally important, what students learned was a better predictor of far transfer than the way that they learned.
An Enhanced Access Reservation Protocol with a Partial Preamble Transmission Mechanism in NB-IoT Systems
Creators: name: Kim, Taehoon
name: Kim, Dong Min
name: Pratas, Nuno
name: Popovski, Petar
name: Sung, Dan Keun
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: In this letter, we propose an enhanced Access Reservation Protocol (ARP) with a partial preamble transmission (PPT) mechanism for the narrow band Internet of Things (NB-IoT) systems. The proposed ARP can enhance the ARP performance by mitigating the occurrence of preamble collisions, while being compatible with the conventional NB-IoT ARP. We provide an analytical model that captures the performance of the proposed ARP in terms of false alarm, mis-detection and collision probabilities. Moreover, we investigate a trade-off between the mis-detection and the collision probabilities, and optimize the proposed ARP according to the system loads. The results show that the proposed ARP outperforms the conventional NB-IoT ARP, in particular at heavier system loads.
SwiftSpatial: Spatial Joins on Modern Hardware
Creators: name: Jiang, Wenqi
name: Parvanov, Martin
name: Alonso, Gustavo
Publisher: name: ETH Zurich
Year: 2023
Subjects: Databases (cs.DB)
Hardware Architecture (cs.AR)
FOS: Computer and information sciences

description: Spatial joins are among the most time-consuming queries in spatial data management systems. In this paper, we propose SwiftSpatial, a specialized accelerator architecture tailored for spatial joins. SwiftSpatial contains multiple high-performance join units with innovative hybrid parallelism, several efficient memory management units, and an integrated on-chip join scheduler. We prototype SwiftSpatial on an FPGA and incorporate the R-tree synchronous traversal algorithm as the control flow. Benchmarked against various CPU and GPU-based spatial data processing systems, SwiftSpatial demonstrates a latency reduction of up to 5.36x relative to the best-performing baseline, while requiring 6.16x less power. The remarkable performance and energy efficiency of SwiftSpatial lay a solid foundation for its future integration into spatial data management systems, both in data centers and at the edge.
description: arXiv
The Physical Characteristics of Interstellar Medium in NGC 3665 with Herschel Observations
Creators: name: Xiao, Meng-Yuan
name: Zhao, Yinghe
name: Gu, Qiu-Sheng
name: Shi, Yong
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the analysis of the physical properties of the interstellar medium (ISM) in the nearby early-type galaxy NGC 3665, based on the far-infrared (FIR) photometric and spectroscopic data as observed by the Herschel Space Observatory. The fit to the spectral energy distribution reveals a high dust content in the galaxy, with the dust-to-stellar mass ratio of $M_{\rm dust}$/$M_\ast$ $\sim$ 1.1 $\times$ 10$^{-4}$ that is nearly three times larger than the mean value of local S0+S0a galaxies. For the ionized regions (H~\textsc{ii} regions), the electron density (n$_e$) is around 49.5 $\pm$ 11.9 cm$^{-3}$ based on the [N~\textsc{ii}]\,122\,\mum/[N~\textsc{ii}]\,205\,\mum\ ratio. For the photodissociation regions, the heating efficiency is in the range of 1.26 $\times$ 10$^{-3}$ and 1.37 $\times$ 10$^{-3}$ based on the ([C~\textsc{ii}$]+[$O~\textsc{i}]\,63\,\mum)/$L_{\rm TIR}$, which is slightly lower than other local galaxies; the hydrogen nucleus density and the strength of FUV radiation field are n $\sim$ 10$^{4}$ cm$^{-3}$ and G$_0$ $\sim$ 10$^{-0.25}$, respectively. The above results are consistent with the presence of weak AGN and a low level of star-forming activity in NGC 3665. Our results give strong support to the `morphological quenching' scenario, where a compact, massive bulge can stabilize amount of cool gas against star formation.
description: 31 pages, 6 figures, accepted to ApJ
Neutralization of Phosphogypsum for Use in Base Lining System of Phosphogypsum Dumping Yards
Creators: name: N. V. Satyanarayana Reddy,
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Phosphogypsum
Composite Liner System
Neutralization
Lime
Fly ash
Pond ash

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 12-16
The Sloan Digital Sky Survey Reverberation Mapping Project: the CIV Blueshift, Its Variability, and Its Dependence Upon Quasar Properties
Creators: name: Sun, Mouyuan
name: Xue, Yongquan
name: Richards, Gordon T.
name: Trump, Jonathan R.
name: Shen, Yue
name: Brandt, W. N.
name: Schneider, D. P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We use the multi-epoch spectra of 362 quasars from the Sloan Digital Sky Survey Reverberation Mapping project to investigate the dependence of the blueshift of CIV relative to MgII on quasar properties. We confirm that high-blueshift sources tend to have low CIV equivalent widths (EWs), and that the low-EW sources span a range of blueshift. Other high-ionization lines, such as HeII, also show similar blueshift properties. The ratio of the line width (measured as both the full-width at half maximum and the velocity dispersion) of CIV to that of MgII increases with blueshift. Quasar variability might enhance the connection between the CIV blueshift and quasar properties (e.g., EW). The variability of the MgII line center (i.e., the wavelength that bisects the cumulative line flux) increases with blueshift. In contrast, the CIV line center shows weaker variability at the extreme blueshifts. Quasars with the high-blueshift CIV lines tend to have less variable continuum emission, when controlling for EW, luminosity, and redshift. Our results support the scenario that high-blueshift sources tend to have large Eddington ratios.
description: 18 pages, 25 figures, Accepted for publication in ApJ
Queueing Analysis for Block Fading Rayleigh Channels in the Low SNR Regime
Creators: name: Dong, Yunquan
name: Fan, Pingyi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Wireless fading channels suffer from both channel fadings and Additive White Gaussian Noise (AWGN). As a result, it is impossible for fading channels to support a constant rate data stream without using buffers. In this paper, we consider information transmission over an infinite-buffer-aided block Rayleigh fading channel in the low signal-to-noise ratio (SNR) regime. We characterize the transmission capability of the channel in terms of stationary queue length distribution, packet delay, as well as data rate. Based on the memoryless property of the service provided by the channel in each block, we formulate the transmission process as a discrete time discrete state $D/G/1$ queueing problem. The obtained results provide a full characterization of block Rayleigh fading channels and can be extended to the finite-buffer-aided transmissions.
description: IEEE WCSP 2013, 6 pages, 2 figures. More details on the proof of Theorem 1 and proposition 1 from arXiv:1403.4047
Developing Effective Fractions Instruction for Kindergarten Through 8th Grade
Creators: name: Siegler, Robert
name: Carpenter, Thomas
name: Fennell, Francis
name: Geary, David C.
name: Lewis, James
name: Okamoto, Yukari
name: Thompson, Laurie
name: Wray, Jonathan
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: This practice guide presents five recommendations intended to help educators improve students’ understanding of fractions. Recommendations include strategies to develop young children’s understanding of early fraction concepts and ideas for helping older children understand the meaning of fractions and the computations involved. The guide also highlights ways to build on students’ existing strategies to solve problems involving ratios, rates, and proportions.
Stability Analysis of Jointed Rock Slope with Strength Reduction Method Based on a 3DEC Simulation
Creators: name: Fei Guo, Gang Zeng
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Strength reduction method
Jointed rock slope
Safety factor
Numerical simulation
Discrete element method

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 17-23
Additional file 1 of Quality of life and treatment satisfaction with pharmacological interventions in Chinese adults with chronic pain due to osteoarthritis
Creators: name: Xue, Qingyun
name: Long, Huibin
name: Lin, Jianhao
name: Du, Dongping
name: Zhou, Jin
name: Chen, Jinwei
name: li, Shu
name: Zhang, Yanlei
name: Cheng, Yan
name: Ma, Xiao
name: Zhang, Zhiyi
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Table S1. The association between BPI-Severity score and HRQoL in patients with/without comorbidity. Table S2. The association between BPI-Severity score and TSQM in patients with/without comorbidity. Table S3. Impact on quality of life assessed using EQ-5D-5L questionnaire and self-assessed health by BPI-Interference score (< 3 and ≥ 3). Table S4. Treatment satisfaction assessed using TSQM-1.4 questionnaire by BPI-Interference score (< 3 and ≥ 3). Table S5. The association between BPI-Interference score and HRQoL. Table S6. The association between BPI-Interference score and TSQM. Table S7. The association between BPI-Interference score and HRQoL in patients with/without comorbidity. Table S8. The association between BPI-Interference score and TSQM in patients with/without comorbidity
Mitigation of Adverse Effects of Sulfates in Cement Treated Marine Clay Subgrades
Creators: name: Merin Kuriakose, Benny Mathews Abraham
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Sulfate
Expansive soils
Marine clay
OPC
SRC
Barium Hydroxide

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 24-33
Unconfined Compressive Strength of Weakly Cemented Compacted Sand under Different Loads
Creators: name: Messaouda Redjem, Mustapha Hidjeb
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Sand
Cement
UCS
Modulus of elasticity
Different loads

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 34-41
Developing conceptual understanding and procedural skill in mathematics: An iterative process
Creators: name: Rittle-Johnson, Bethany
name: Siegler, Robert
name: Alibali, Martha Wagner
Publisher: name: Carnegie Mellon University
Year: 2001
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: The authors propose that conceptual and procedural knowledge develop in an iterative fashion and that improved problem representation is 1 mechanism underlying the relations between them. Two experiments were conducted with 5th- and 6th-grade students learning about decimal fractions. In Experiment 1, children's initial conceptual knowledge predicted gains in procedural knowledge, and gains in procedural knowledge predicted improvements in conceptual knowledge. Correct problem representations mediated the relation between initial conceptual knowledge and improved procedural knowledge. In Experiment 2, amount of support for correct problem representation was experimentally manipulated, and the manipulations led to gains in procedural knowledge. Thus, conceptual and procedural knowledge develop iteratively, and improved problem representation is 1 mechanism in this process
Randomness and Complexity in Networks
Creators: name: Evans, T. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: I start by reviewing some basic properties of random graphs. I then consider the role of random walks in complex networks and show how they may be used to explain why so many long tailed distributions are found in real data sets. The key idea is that in many cases the process involves copying of properties of near neighbours in the network and this is a type of short random walk which in turn produce a natural preferential attachment mechanism. Applying this to networks of fixed size I show that copying and innovation are processes with special mathematical properties which include the ability to solve a simple model exactly for any parameter values and at any time. I finish by looking at variations of this basic model.
description: Survey paper based on talk given at the workshop on ``Stochastic Networks and Internet Technology'', Centro di Ricerca Matematica Ennio De Giorgi, Matematica nelle Scienze Naturali e Sociali, Pisa, 17th - 21st September 2007. To appear in proceedings
Developing a domain-general framework for cognition: What is the best approach?
Creators: name: J L McClelland
name: Plaut, David
name: S J Gotts
name: T V Maia
Publisher: name: Carnegie Mellon University
Year: 2003
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: We share with Anderson & Lebiere (A&L) (and with Newell before them) the goal of developing a domain-general framework for modeling cognition, and we take seriously the issue of evaluation criteria. We advocate a more focused approach than the one reflected in Newell's criteria, based on analysis of failures as well as successes of models brought into close contact with experimental data. A&L attribute the shortcomings of our parallel-distributed processing framework to a failure to acknowledge a symbolic level of thought. Our framework does acknowledge a symbolic level, contrary to their claim. What we deny is that the symbolic eve is the level at which the principles of cognitive processing should be formulated. Models cast at a symbolic level are sometimes useful as high-level approximations of the underlying mechanisms of thought. The adequacy of this approximation will continue to increase as symbolic modelers continue to incorporate principles of parallel distributed processing.
Some combinatorial aspects of quantum field theory
Creators: name: Tanasa, Adrian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this short survey we present the appearance of some combinatorial notions in quantum field theory. We first focus on topological graph polynomials (the Tutte polynomial and its multivariate version) and their relation with the parametric representation of the commutative $Φ^4$ field theory. We then generalize this to ribbon graphs and present the relation of the Bollobás-Riordan polynomial with the parametric representation of some $Φ^4$ field theory on the non-commutative Moyal space. We also review the rôle played by the Connes-Kreimer Hopf algebra as the combinatorial backbone of the renormalization process in field theories. We then show how this generalizes to the scalar $Φ^4$ field theory implemented on the non-commutative Moyal space. Finally, some perspectives for the further generalization of these tools to quantum gravity tensor models are briefly sketched.
description: 30 pages, 9 figures. An explicit example of the Bogoliubov subtraction operator's action on the bare Feynman integral of a two-loop graph has been added; the resulting formula has then been compared with the corresponding formula obtained within the Connes-Kreimer algebraic setting. An appendix introducing Grassmann variables and the Grassmann representation of determinants have been added
Equivariant Iwasawa theory: an example
Creators: name: Ritter, Jürgen
name: Weiss, Alfred
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R23; 11R42

description: The equivariant `main conjecture' of Iwasawa theory is shown to hold for a Galois extension $K/k$ of number fields with Galois group an $l$-adic pro-$l$ Lie group of dimension 1 containing an abelian subgroup of index $l$, provided that Iwasawa's $μ$-invariant $μ(K/k)$ vanishes.
Ground Improvement in Loose Sandy Soils through Dynamic Replacement
Creators: name: Nabil F. Ismael, Dalya Ismael
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Loose Silty Sands
Ground Improvement
Dynamic Replacement

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 42-48
Numerical Study of a Quay Wall Anchored by an Anchor Plate Backfilled with a Mixture of Sand and Recycled Waste
Creators: name: F. Z. Benamara, C. Kechkar
Publisher: name: Southeast Asian Geotechnical Society
Year: 2023
Subjects: Backfill
Recycled materials
Anchor plates
Quay wall
PLAXIS 2D

description: The Geotechnical Engineering Journal of the SEAGS & AGSSEA, 54, 4, 49-58
An open problem in complex analytic geometry arising in harmonic analysis
Creators: name: Ruzhansky, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 32A10, 32A20, 35S30, 53D12

description: In this paper, an open problem in the multidimensional complex analysis is pesented that arises in the investigation of the regularity properties of Fourier integral operators and in the regularity theory for hyperbolic partial differential equations. The problem is discussed in a self-contained elementary way and some results towards its resolution are presented. A conjecture concerning the structure of appearing affine fibrations is formulated.
description: 8 pages
Signature of phase singularities in diffusive regime in one dimensional disordered lattices: Interplay and qualitative analysis
Creators: name: Ghosh, Somnath
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Co-existence and interplay between mesoscopic light dynamics with singular optics in spatially random but temporally coherent disordered waveguide lattices is reported. Two CW light beams of 1.55 micron operating wavelength are launched as inputs to 1D waveguide lattices with controllable weak disorder in refractive index profile. Direct observation of phase singularities in the speckle pattern along the length is numerically demonstrated. Quantitative analysis of onset of such singular behavior and diffusive wave propagation is analyzed for the first time.
description: 4 pages 4 figures
Quantum computing with a single molecular ensemble and a Cooper pair box
Creators: name: Tordrup, Karl
name: Molmer, Klaus
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose to encode quantum information in rotational excitations in a molecular ensemble. Using a stripline cavity field for quantum state transfer between the molecular ensemble and a Cooper pair box two-level system, our proposal offers a linear scaling of the number of qubits in our register with the number of rotationally excited states available in the molecules.
description: 4 pages, 3 figures Minor corrections from reviewing process
Detecting incipient inner-ear damage from impulse noise with otoacoustic emissions.
Creators: name: Marshall, Lynne
name: Miller, Judi A. Lapsley
name: Heller, Laurie M.
name: Wolgemuth, Keith S.
name: Hughes, Linda M.
name: Smith, Shelley D.
name: Kopke, Richard D.
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Audiometric thresholds and otoacoustic emissions (OAEs) were measured in 285 U.S. Marine Corps recruits before and three weeks after exposure to impulse-noise sources from weapons' fire and simulated artillery, and in 32 non-noise-exposed controls. At pre-test, audiometric thresholds for all ears were < or=25 dB HL from 0.5 to 3 kHz and < or=30 dB HL at 4 kHz. Ears with low-level or absent OAEs at pre-test were more likely to be classified with significant threshold shifts (STSs) at post-test. A subgroup of 60 noise-exposed volunteers with complete data sets for both ears showed significant decreases in OAE amplitude but no change in audiometric thresholds. STSs and significant emission shifts (SESs) between 2 and 4 kHz in individual ears were identified using criteria based on the standard error of measurement from the control group. There was essentially no association between the occurrence of STS and SES. There were more SESs than STSs, and the group of SES ears had more STS ears than the group of no-SES ears. The increased sensitivity of OAEs in comparison to audiometric thresholds was shown in all analyses, and low-level OAEs indicate an increased risk of future hearing loss by as much as ninefold.
title: Saliva samples as a tool to study the effect of meal timing on metabolic and inflammatory biomarkers
Creators: name: Kessler, Katharina
name: Hornemann, Silke
name: Rudovich, Natalia
name: Weber, Daniela
name: Grune, Tilman
name: Kramer, Achim
name: Pfeiffer, Andreas F. H.
name: Pivovarova-Ramich, Olga
Publisher: name: Universität Potsdam
Year: 2024
Subjects: subject: 570 Biowissenschaften; Biologie

description: Meal timing affects metabolic regulation in humans. Most studies use blood samples fortheir investigations. Saliva, although easily available and non-invasive, seems to be rarely used forchrononutritional studies. In this pilot study, we tested if saliva samples could be used to studythe effect of timing of carbohydrate and fat intake on metabolic rhythms. In this cross-over trial, 29 nonobese men were randomized to two isocaloric 4-week diets: (1) carbohydrate-rich meals until13:30 and high-fat meals between 16:30 and 22:00 or (2) the inverse order of meals. Stimulated salivasamples were collected every 4 h for 24 h at the end of each intervention, and levels of hormones andinflammatory biomarkers were assessed in saliva and blood. Cortisol, melatonin, resistin, adiponectin, interleukin-6 and MCP-1 demonstrated distinct diurnal variations, mirroring daytime reports inblood and showing significant correlations with blood levels. The rhythm patterns were similar forboth diets, indicating that timing of carbohydrate and fat intake has a minimal effect on metabolicand inflammatory biomarkers in saliva. Our study revealed that saliva is a promising tool for thenon-invasive assessment of metabolic rhythms in chrononutritional studies, but standardisation of sample collection is needed in out-of-lab studies.
description: Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe; 1425
title: The effects of gasdynamics, cooling, star formation, and numerical resolution in simulations of cluster formation
Creators: name: Lewis, GF
name: Babul, A
name: Katz, N
name: Quinn, T
name: Hernquist, L
name: Weinberg, DH
Publisher: name: University of Massachusetts Amherst
Year: 2000
Subjects: subject: galaxies : clusters : general
subject: galaxies : formation
subject: methods : numerical
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://iopscience.iop.org/0004-637X/536/2/623/
description: We present the analysis of a suite of simulations of a Virgo-mass galaxy cluster. Undertaken within the framework of standard cold dark matter cosmology, these simulations were performed at differing resolutions and with increasingly complex physical processes, with the goal of identifying the effects of each on the evolution of the cluster. We focus on the cluster at the present epoch and examine properties including the radial distributions of density, temperature, entropy, and velocity. We also map "observable" projected properties such as the surface mass density, X-ray surface brightness, and Sunyaev-Zeldovich signature. We identify significant differences between the simulations, which highlights the need for caution when comparing numerical simulations to observations of galaxy clusters. While resolution affects the inner density profile in dark matter simulations, the addition of a gaseous component, especially one that cools and forms stars, affects the entire cluster. For example, in simulations with gasdynamics but no cooling, improving the gravitational force resolution from 200 to 14 kpc increases the X-ray luminosity and emission-weighted temperature by factors of 2.9 and 1.6, respectively, and it changes the form of the X-ray surface brightness and temperature profiles. At the higher resolution, a simulation that includes cooling and star formation converts 30% of the cluster baryons into stars and produces a massive central galaxy that substantially alters the cluster potential well. This cluster has 20% higher X-ray luminosity and 30% higher emission-weighted temperature than the corresponding cluster in the no-cooling simulation. Its properties are reasonably close to those of observed X-ray dominant (XD) clusters, with conversion of cooled gas into stars greatly reducing the observational conflicts found by Suginohara & Ostriker in simulations with cooling but no star formation. We conclude that both resolution and included physical processes play important roles in simulating the formation and evolution of galaxy clusters. Therefore, physical inferences drawn from simulations that do not include gaseous components that can cool and form stars present a poor representation of reality.
Response of an aerobic denitrifier to titanium dioxide nanoparticles exposure
Creators: name: Liu, Shufeng
name: Wang, Ming
name: Li, Tingting
name: Chen, Qian
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: The cytotoxicity of titanium dioxide nanoparticles (TiO2 NPs) to microorganisms has attracted great attention over the past few decades. As an important participator in the nitrogen cycle, aerobic denitrifiers have been proven to be negatively affected by TiO2 NPs, but the mechanism of this effect remains unclear. In this study, the bacteria-nanoparticle interaction was investigated by exposing an aerobic denitrifier, Pseudomonas stutzeri PCN-1 to different concentrations of TiO2 NPs at the dark condition, in order to investigate the cytotoxicity mechanism. The results illustrated that aerobic denitrification was inhibited at different TiO2 NPs concentrations from 1 to 128 mg/L, accompanied by the postponement of nitrate reduction and the accumulations of nitrite and nitrous oxide. But this inhibitory effect was mitigated with increasing TiO2 NPs concentrations. Further studies revealed that expressions of aerobic denitrification genes were also inhibited with the presence of TiO2 NPs, and the inhibition effect on napA and nirS genes was more significant than that on nosZ and cnorB, which might directly bring about the delayed nitrate reduction and hindered nitrite transfer. Moreover, the decreased toxicities at higher TiO2 NPs concentrations could be attributed to the formation of larger aggregates (>1000 nm), which greatly reduced the chance for direct interactions between NPs and bacterial membranes, as well as the interruption of denitrifying genes expressions. These findings were meaningful for the formation of deep insights into the mechanism of TiO2 NPs cytotoxicity as well as the development of strategies to control the negative effect of nanoparticles in the environment. Aerobic denitrification characteristics of strain PCN-1 under different carbon sources.
Comparison of Error Estimations by DERs in One-Port S and SLO Calibrated VNA Measurements and Application
Creators: name: Yannopoulou, Nikolitsa
name: Zimourtopoulos, Petros
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In order to demonstrate the usefulness of the only one existing method for systematic error estimations in VNA (Vector Network Analyzer) measurements by using complex DERs (Differential Error Regions), we compare one-port VNA measurements after the two well-known calibration techniques: the quick reflection response, that uses only a single S (Short circuit) standard, and the time-consuming full one-port, that uses a triple of SLO standards (Short circuit, matching Load, Open circuit). For both calibration techniques, the comparison concerns: (a) a 3D geometric representation of the difference between VNA readings and measurements, and (b) a number of presentation figures for the DERs and their polar DEIs (Differential Error Intervals) of the reflection coefficient, as well as, the DERs and their rectangular DEIs of the corresponding input impedance. In this paper, we present the application of this method to an AUT (Antenna Under Test) selected to highlight the existence of practical cases in which the time consuming calibration technique results a systematic error estimation stripe including almost all of that of quick calibration.
description: Accepted for publication to Proceedings of 21st International Conference Radioelektronika 2011, April 19-20, Brno, Czech Republic, but the authors referee the reviewers' grades: [5, 4, 3, 4] + [4, 4, 4, 3] + [4, 4, 4, 4] out of 3 x [5, 5, 5, 5] as unacceptably low and they declined that acceptance - No changes in the paper since [v1] Mon, 21 Feb 2011 14:47:03 GMT (222kb): [v4] = [v3] = [v2] = [v1]
On Fixed-multiplicity Corrections to Correlators
Creators: name: Filip, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Correction terms generated in the correlator analysis due to multiplicity-dependent observable mean are investigated. A procedure for subtraction of such terms from calculated correlator estimates is suggested and the obtained results are discussed.
description: 14 pages, 4 figures; (ready for publication)
Support of Interactive 3D/4D Presentations by the Very First Ever Made Virtual Laboratories of Antennas
Creators: name: Yannopoulou, Nikolitsa
name: Zimourtopoulos, Petros
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Computer Science (cs.OH)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Based on the experience we have gained so far, as independent reviewers of Radioengineering journal, we thought that may be proved useful to publicly share with the interested author, especially the young one, some practical implementations of our ideas for the interactive representation of data using 3D/4D movement and animation, in an attempt to motivate and support her/him in the development of similar dynamic presentations, when s/he is looking for a way to locate the stronger aspects of her/his research results in order to prepare a clear, most appropriate for publication, static presentation figure. For this purpose, we selected to demonstrate a number of presentations, from the simplest to the most complicated, concerning well-known antenna issues with rather hard to imagine details, as it happens perhaps in cases involving Spherical Coordinates and Polarization, which we created to enrich the very first ever made Virtual Laboratories of Antennas, that we distribute over the Open Internet through our website Virtual Antennas. These presentations were developed in a general way, without using antenna simulators, to handle output text and image data from third-party CAS Computer Algebra Systems, such as the Mathematica commercial software we use or the Maxima FLOSS we track its evolution.
description: Inadequately justified rejection (with reviewers' grades: [4, 4, 3, 4] + [4, 4, 4, 4] + [2, 4, 4, 4] out of 3 x [5, 5, 5, 5]) from publication to the Proceedings of 21st International Conference Radioelektronika 2011, April 19-20, Brno, Czech Republic - No changes in the paper since [v1] Mon, 21 Feb 2011 14:52:34 GMT (412kb): [v3] = [v2] = [v1]
Fractional conservation laws in optimal control theory
Creators: name: Frederico, Gastao S. F.
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 49K05; 26A33; 70H33

description: Using the recent formulation of Noether's theorem for the problems of the calculus of variations with fractional derivatives, the Lagrange multiplier technique, and the fractional Euler-Lagrange equations, we prove a Noether-like theorem to the more general context of the fractional optimal control. As a corollary, it follows that in the fractional case the autonomous Hamiltonian does not define anymore a conservation law. Instead, it is proved that the fractional conservation law adds to the Hamiltonian a new term which depends on the fractional-order of differentiation, the generalized momentum, and the fractional derivative of the state variable.
description: The original publication is available at http://www.springerlink.com Nonlinear Dynamics
Detailed Exploration of Face-related Processing in Congenital Prosopagnosia: 2. Functional Neuroimaging Findings
Creators: name: Avida, Galia
name: Hasson, Uri
name: Malach, Rafael
name: Behrmann, Marlene
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 170199 Psychology not elsewhere classified
subject: FOS: Psychology

description: Specific regions of the human occipito-temporal cortex are consistently activated in functional imaging studies of face processing. To understand the contribution of these regions to face processing, we examined the pattern of fMRI activation in four congenital prosopagnosic (CP) individuals who are markedly impaired at face processing despite normal vision and intelligence, and with no evidence of brain damage. These individuals evinced a normal pattern of fMRI activation in the fusiform gyrus (FFA) and in other ventral occipito-temporal areas, in response to faces, buildings, and other objects, shown both as line drawings in detection and discrimination tasks and under more naturalistic testing conditions when no task was required. CP individuals also showed normal adaptation levels in a blockdesign adaptation experiment and, like control subjects, exhibited evidence of global face representation in the FFA. The absence of a BOLD–behavioral correlation (profound behavioral deficit, normal face-related activation in the ventral occipito- temporal cortex) challenges existing accounts of face representation, and suggests that activation in these cortical regions per se is not sufficient to ensure intact face processing.
Designing Patient-Specific Optimal Neurostimulation Patterns for Seizure Suppression
Creators: name: Sandler, Roman A.
name: Geng, Kunling
name: Song, Dong
name: Hampson, Robert E.
name: Witcher, Mark R.
name: Deadwyler, Sam A.
name: Berger, Theodore W.
name: Marmarelis, Vasilis Z.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Neurostimulation is a promising therapy for abating epileptic seizures. However, it is extremely difficult to identify optimal stimulation patterns experimentally. In this study human recordings are used to develop a functional 24 neuron network statistical model of hippocampal connectivity and dynamics. Spontaneous seizure-like activity is induced in-silico in this reconstructed neuronal network. The network is then used as a testbed to design and validate a wide range of neurostimulation patterns. Commonly used periodic trains were not able to permanently abate seizures at any frequency. A simulated annealing global optimization algorithm was then used to identify an optimal stimulation pattern which successfully abated 92% of seizures. Finally, in a fully responsive, or "closed-loop" neurostimulation paradigm, the optimal stimulation successfully prevented the network from entering the seizure state. We propose that the framework presented here for algorithmically identifying patient-specific neurostimulation patterns can greatly increase the efficacy of neurostimulation devices for seizures.
Response of an aerobic denitrifier to Titanium dioxide nanoparticles exposure
Creators: name: Liu, Shufeng
name: Wang, Ming
name: Li, Tingting
name: Chen, Qian
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: The cytotoxicity of titanium dioxide nanoparticles (TiO2 NPs) to microorganisms has attracted great attention over the past few decades. As an important participator in nitrogen cycle, aerobic denitrifiers have been proven to be negatively affected by TiO2 NPs, but the mechanism of this effect remains unclear. In this study, bacteria-nanoparticle interaction was investigated by exposing an aerobic denitrifier, Pseudomonas stutzeri PCN-1 to different concentrations of TiO2 NPs at dark condition, in order to investigate the cytotoxicity mechanism. The results illustrated that aerobic denitrification was inhibited at different TiO2 NPs concentrations from 1 to 128 mg/L, accompanied by the postponement of nitrate reduction and the accumulations of nitrite and nitrous oxide. But this inhibitory effect was mitigated with increasing TiO2 NPs concentrations. Further studies revealed that expressions of aerobic denitrification genes were also inhibited with the presence of TiO2 NPs, and the inhibition effect on napA and nirS genes was more significant than that on nosZ and cnorB, which might directly bring about the delayed nitrate reduction and hindered nitrite transfer. Moreover, the decreased toxicities at higher TiO2 NPs concentrations could be attributed to the formation of larger aggregates (>1000 nm), which greatly reduced the chance for direct interactions between NPs and bacterial membranes, as well as the interruption of denitrifying genes expressions. These findings were meaningful for the formation of deep insights into the mechanism of TiO2 NPs cytotoxicity as well as the development of strategies to control the negative effect of nanoparticles in the environment.
Towards Linked Stage Graph 2.0 - a Knowledge Graph based Research Resource for the Performing Arts
Creators: name: Tietz, Tabea
name: Sack, Harald
name: Weis, Joëlle
name: Bunout, Estelle
name: Haider, Thomas
name: Helling, Patrick
Publisher: name: Zenodo
Year: 2024
Subjects: DHd2024
Paper
Vortrag
Performing Arts
Knowledge Graph
Research Data
Entdeckung
Modellierung
Bearbeitung
Bilder
Metadaten
Forschung

description: The performing arts are complex, dynamic and embedded into societal and political systems. Providing means to research performing arts data is therefore crucial for understanding our history and culture. One of these efforts is Linked Stage Graph, a knowledge graph containing historical photographs and metadata of the Stuttgart State Theatres. While Linked Stage Graph has been well received by the cultural heritage community, still a number of challenges have to be overcome to create an even more technically and scientifically accurate research resource based on open standards and tools. This paper contributes a road map towards an improved, even more valuable and open resource. At the same time, this presentation paper constitutes an invitation to discuss use cases, data models and exploration environments for the performing arts.
Uranium oxides investigated by X-ray absorption and emission spectroscopies
Creators: name: Magnuson, M.
name: Butorin, S. M.
name: Werme, L.
name: Nordgren, J.
name: Ivanov, K.
name: Guo, J. -H.
name: Shuh, D. K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: X-ray absorption and resonant X-ray emission measurements at the O 1s edge of the uranium oxides UO2, U3O8 and UO3 are presented. The spectral shapes of the O Kα X-ray emission spectra of UO3 exhibit significant excitation energy dependence, from an asymmetric to a symmetric form, which differs from those of UO2 and U3O8. This energy dependence is attributed to a significant difference in the oxygen-uranium hybridization between two different sites in the crystal structure of UO3. The spectral shapes of UO2 and U3O8 are also found to be different but without significant energy dependence. The experimental spectra of the valence and conduction bands of the uranium oxides are compared to the results of electronic structure calculations available in the literature.
description: 9 pages, 4 figures
Comparing the affective and social effects of positive reappraisal and minimising reappraisal
Creators: name: Zhao, Yitong
name: Waugh, Christian E.
name: Kammrath, Lara
name: Wang, Qing
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: Negative interpersonal events, such as close relationship conflicts, can threaten one’s affective and social well-being. To improve affect and to maintain valuable relationships, individuals could select different reappraisal tactics. One could use positive reappraisal to find potential benefits of the event (e.g. “This conflict helps our relationship grow.”), or use minimising reappraisal to decrease the perceived impact of event (e.g. “This is no big deal.”). These two tactics target distinct appraisal dimensions: valence versus significance. We investigated whether these two reappraisals would show similar or different profiles of affective and social effects in the context of close relationship conflicts. Study 1 was based on a sample of 90 Chinese younger adults. Study 2 was based on a sample of 237 American adults (156 MTurk workers and 81 undergraduates combined). Across two studies, both reappraisals effectively improved affect in response to a recalled conflict. Minimising reappraisal group showed significantly increased affect and relationship satisfaction (Study 1&2), but decreased conflict resolution motivation (Study 2) across time. Positive reappraisal group, on the other hand, showed less pronounced increases in positive affect but increased conflict resolution self-efficacy across time (Study 1&2). We discuss these findings by highlighting within-reappraisal variation and potential trade-offs in pursuing affective and social regulation goals.
Studying pion effects in the quark propagator
Creators: name: Nickel, Dominik
name: Fischer, Christian S.
name: Wambach, Jochen
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Within the framework of Schwinger-Dyson and Bethe-Salpeter equations we investigate the importance of pions for the quark-gluon interaction. To this end we choose a truncation for the quark-gluon vertex that includes intermediate pion degrees of freedom and adjust the interaction such that unquenched lattice results for various current quark masses are reproduced. The corresponding Bethe-Salpeter kernel is constructed from constraints by chiral symmetry. After extrapolation to the physical point we find a considerable contribution of the pion back reaction to the quark mass function as well as to the chiral condensate. The quark wave function is less affected.
description: Talk given at 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon (MENU 2007), Julich, Germany, 10-14 Sep 2007