cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Bifurcations of discrete breathers in a diatomic Fermi-Pasta-Ulam chain
Creators: name: James, Guillaume
name: Kastner, Michael
Publisher: name: arXiv
Year: 2006
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Discrete breathers are time-periodic, spatially localized solutions of the equations of motion for a system of classical degrees of freedom interacting on a lattice. Such solutions are investigated for a diatomic Fermi-Pasta-Ulam chain, i. e., a chain of alternate heavy and light masses coupled by anharmonic forces. For hard interaction potentials, discrete breathers in this model are known to exist either as ``optic breathers'' with frequencies above the optic band, or as ``acoustic breathers'' with frequencies in the gap between the acoustic and the optic band. In this paper, bifurcations between different types of discrete breathers are found numerically, with the mass ratio m and the breather frequency omega as bifurcation parameters. We identify a period tripling bifurcation around optic breathers, which leads to new breather solutions with frequencies in the gap, and a second local bifurcation around acoustic breathers. These results provide new breather solutions of the FPU system which interpolate between the classical acoustic and optic modes. The two bifurcation lines originate from a particular ``corner'' in parameter space (omega,m). As parameters lie near this corner, we prove by means of a center manifold reduction that small amplitude solutions can be described by a four-dimensional reversible map. This allows us to derive formally a continuum limit differential equation which characterizes at leading order the numerically observed bifurcations.
description: 30 pages, 10 figures
AAC telepractice during COVID-19 (Biggs et al., 2021)
Creators: name: Biggs, Elizabeth E.
name: Therrien, Michelle C. S.
name: Douglas, Sarah N.
name: Snodgrass, Melinda R.
Publisher: name: ASHA journals
Year: 2021
Subjects: subject: 200102 Communication Technology and Digital Media Studies
subject: FOS: Media and communications
subject: 200101 Communication Studies

description: Purpose: The novel coronavirus (COVID-19) pandemic has led to sudden, widespread use of telepractice, including providing services to children who use aided augmentative and alternative communication (AAC). This exploratory study examined speech-language pathologists’ (SLPs) experiences using telepractice to provide services to children and youth aged 3–21 years who used aided AAC during the earlier months of the pandemic (May–June 2020).Method: Three hundred thirty-one SLPs responded to an online survey. Closed- and open-ended survey items were analyzed quantitatively and qualitatively and mixed at the point of interpretation to understand the experiences of SLPs related to the use of telepractice with children who use aided AAC, including how they perceived effectiveness.Results: Most SLPs were using telepractice to provide both direct and consultation/coaching services to children who used aided AAC. There was fairly wide variation in perceptions of effectiveness of both types of services, but SLPs were more likely to rate consultation/coaching services as being more effective than direct services. SLPs identified factors impacting effectiveness across five dimensions: broader factors, practice-based factors (i.e., technology, the type of services), the child, parents and family members, and professionals. School-based SLPs perceived telepractice as being less effective than non–school-based SLPs.Conclusions: The use of telepractice during the COVID-19 pandemic has unfolded quite differently for different SLPs and the children who use aided AAC that they serve. Although AAC telepractice offers promise for the future, particularly for partnering with families, further research is needed to know how to overcome challenges experienced by SLPs.
Supplemental Material S1. Coded factors impacting the perceived effectiveness of AAC telepractice, with descriptions and example quoted survey responses.
Biggs, E. E., Therrien, M. C. S., Douglas, S. N., & Snodgrass, M. R. (2021). Augmentative and alternative communication telepractice during the COVID-19 pandemic: A national survey of speech-language pathologists. American Journal of Speech-Language Pathology. Advance online publication. https://doi.org/10.1044/2021_AJSLP-21-00036
Mass Transfer in Close, Rapidly Accreting Protobinaries: An Origin for Massive Twins?
Creators: name: Krumholz, Mark R.
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Rapidly accreting massive protostars undergo a phase of deuterium shell burning during pre-main sequence evolution that causes them to swell to tenths of an AU in radius. During this phase, those with close binary companions will overflow their Roche lobes and begin transferring mass. Since massive stars frequently have companions at distances well under 1 AU, this process may affect the early evolution of a substantial fraction of massive stars. We use a simple protostellar evolution model to determine the range in accretion rates, mass ratios, and orbital separations for which mass transfer will occur, and we compute approximately the stability and final outcome of the transfer process. We discuss how mass transfer affects the demographics of massive binaries, and show that it provides a natural explanation for the heretofore unexplained population of massive "twins", high mass binaries with mass ratios very close to unity.
description: 9 pages, 5 figures, emulateapj format, accepted to ApJ. This version has minor changes to the discussion and some additional calculations. The major conclusions are unchanged
All-Optical Delay of Images using Slow Light
Creators: name: Camacho, Ryan M.
name: Broadbent, Curtis J.
name: Ali-Khan, Irfan
name: Howell, John C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Two-dimensional images carried by optical pulses (2 ns) are delayed by up to 10 ns in a 10 cm cesium vapor cell. By interfering the delayed images with a local oscillator, the transverse phase and amplitude profiles of the images are shown to be preserved. It is further shown that delayed images can be well preserved even at very low light levels, where each pulse contains on average less than one photon.
description: 4 pages, 5 figures
Supplementary Material 1= Methods from The coevolution of rostral keratin and tooth distribution in dinosaurs
Creators: name: Aguilar-Pedrayes, Isaura
name: Gardner, Jacob D.
name: Organ, Chris L.
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified
classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: Extended description of methods of research.
Chestionar privind percepția speciei invazive Ambrosia artemisiifolia (ambrozia, iarba pârloagelor) și evaluarea cunoștințelor grupului țintă cu privire la specia invazivă
Creators: name: Pioarcă-Ciocănea, Cristiana Maria
name: Matache, Marius Lucian
name: Vanau, Gabriel Ovidiu
name: Gavrilidis, Athanasios Alexandru
Publisher: name: Zenodo
Year: 2021
Subjects: chestionar, Ambrosia artemisiifolia

description: Chestionar privind percepția speciei invazive Ambrosia artemisiifolia (ambrozia, iarba pârloagelor) și evaluarea cunoștințelor grupului țintă cu privire la specia invazivă. Chestionarul este elaborat în cadrul proiectului POIM 2014+ 120008 - Managementul adecvat al speciilor invazive din România, în conformitate cu Regulamentul UE 1143/2014 referitor la prevenirea și gestionarea introducerii și răspândirii speciilor alogene invazive – Obiectivul specific 4 – Subactivitatea 4.2.9. Realizarea unui program pilot de implicare a publicului în activitatea de eradicare / control a unor specii invazive (ex. Ambrosia artemisiifolia). Proiect implementat de Ministerul Mediului, Apelor și Pădurilor în parteneriat cu Universitatea din București.
Learning Behavioral Representations of Human Mobility
Creators: name: Damiani, Maria Luisa
name: Acquaviva, Andrea
name: Hachem, Fatima
name: Rossini, Matteo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: I.2; H.0

description: In this paper, we investigate the suitability of state-of-the-art representation learning methods to the analysis of behavioral similarity of moving individuals, based on CDR trajectories. The core of the contribution is a novel methodological framework, mob2vec, centered on the combined use of a recent symbolic trajectory segmentation method for the removal of noise, a novel trajectory generalization method incorporating behavioral information, and an unsupervised technique for the learning of vector representations from sequential data. Mob2vec is the result of an empirical study conducted on real CDR data through an extensive experimentation. As a result, it is shown that mob2vec generates vector representations of CDR trajectories in low dimensional spaces which preserve the similarity of the mobility behavior of individuals.
description: ACM SIGSPATIAL 2020: 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems.November 2020 Seattle, Washington, USA
Lattice Boltzmann versus Molecular Dynamics simulation of nano-hydrodynamic flows
Creators: name: Horbach, J.
name: Succi, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A fluid flow in a simple dense liquid, passing an obstacle in a two-dimensional thin film geometry, is simulated by Molecular Dynamics (MD) computer simulation and compared to results of Lattice Boltzmann (LB) simulations. By the appropriate mapping of length and time units from LB to MD, the velocity field as obtained from MD is quantitatively reproduced by LB. The implications of this finding for prospective LB-MD multiscale applications are discussed.
description: 4 pages, 4 figures
Unweighted linear congruences with distinct coordinates and the Varshamov--Tenengolts codes
Creators: name: Bibak, Khodakhast
name: Kapron, Bruce M.
name: Srinivasan, Venkatesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, we first give explicit formulas for the number of solutions of unweighted linear congruences with distinct coordinates. Our main tools are properties of Ramanujan sums and of the discrete Fourier transform of arithmetic functions. Then, as an application, we derive an explicit formula for the number of codewords in the Varshamov--Tenengolts code $VT_b(n)$ with Hamming weight $k$, that is, with exactly $k$ $1$'s. The Varshamov--Tenengolts codes are an important class of codes that are capable of correcting asymmetric errors on a $Z$-channel. As another application, we derive Ginzburg's formula for the number of codewords in $VT_b(n)$, that is, $|VT_b(n)|$. We even go further and discuss connections to several other combinatorial problems, some of which have appeared in seemingly unrelated contexts. This provides a general framework and gives new insight into all these problems which might lead to further work.
Non-Hermitian spectral effects in a PT-symmetric waveguide
Creators: name: Krejcirik, David
name: Tater, Milos
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a numerical study of the spectrum of the Laplacian in an unbounded strip with PT-symmetric boundary conditions. We focus on non-Hermitian features of the model reflected in an unusual dependence of the eigenvalues below the continuous spectrum on various boundary-coupling parameters.
description: 17 pages, LaTeX with 7 EPS figures. Contrary to a version to appear in J. Phys. A, this one contains the figures in colour.
Pilot-ignited natural gas combustion in diesel engines
Creators: name: Mtui, Peter
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of the work was to determine the conditions under which pilot liquid diesel flame (as a source of heat) can ignite natural gas directly injected into the cylinder for diesel engines. The work included experimental and numerical simulation of a conventional diesel and natural gas fueling. The engine was operated at medium speed and load conditions of 1250 RPM and 3 bar (brake mean effective pressure). Measurements and computations were performed by varying the fuel injection timing for baseline diesel (100% diesel) and for diesel-gas (30% pilot diesel and 70% natural gas). High speed flame photography based on the endoscope technique was used to obtain combustion flame pictures of the firing engine. Measured cylinder pressure data were analyzed by a multi-zone combustion model for mass burning rate. Three-dimensional numerical simulation based on the KIVA code was used to predict thermal and flow field in the engine chamber. The KIVA code was modified for diesel-gas combustion. A single-step chemical reaction coupled with a mixing-controlled combustion model were implemented in the modified KIVA code to predict ignition and combustion. Successful ignition of natural gas by a pilot diesel flame depends strongly on the relative injection timing of the pilot diesel and natural gas. With the beginning of natural gas injection 3 degrees after the injection of the pilot diesel, a successful ignition is possible over a wide range of injection timings. Successful ignition with late injection timing is associated with low emissions of oxides of nitrogen (NOx). With pilot injection, the natural gas is ignited by contact with the pilot diesel combustion products rather than the combustion enhanced compression of the unburned fuel and air. Ignition of the natural gas depends strongly on the combustion duration of the pilot diesel. Under the conditions studied, the diesel-gas combustion has about the same ignition delay and combustion duration as baseline diesel. Combustion with the diesel-gas case is apparently smoother (i.e. lower cycle-to-cycle variations) than with baseline diesel.
A Smart Home System based on Internet of Things
Creators: name: Al-Mutawa, Rihab Fahd
name: Eassa, Fathy Albouraey
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: The Internet of Things (IoT) describes a network infrastructure of identifiable things that share data through the Internet. A smart home is one of the applications for the Internet of Things. In a smart home, household appliances could be monitored and controlled remotely. This raises a demand for reliable security solutions for IoT systems. Authorization and authentication are challenging IoT security operations that need to be considered. For instance, unauthorized access, such as cyber-attacks, to a smart home system could cause danger by controlling sensors and actuators, opening the doors for a thief. This paper applies an extra layer of security of multi-factor authentication to act as a prevention method for mitigating unauthorized access. One of those factors is face recognition, as it has recently become popular due to its non-invasive biometric techniques, which is easy to use with cameras attached to most trending computers and smartphones. In this paper, the gaps in existing IoT smart home systems have been analyzed, and we have suggested improvements for overcoming them by including necessary system modules and enhancing user registration and log-in authentication. We propose software architecture for implementing such a system. To the best of our knowledge, the existing IoT smart home management research does not support face recognition and liveness detection within the authentication operation of their suggested software architectures.
Symmetric products of Erdős space and complete Erdős space
Creators: name: Zaragoza, Alfredo
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54B20, 54A10, 54E50, 54F50, 54F65

description: It is shown that the symmetric products of complete Erdős space and Erdős space are homeomorphic to complete Erdős space and Erdős space, respectively. We will also give some properties of their hyperspace of compact subsets with the Vietoris topology.
Data-Driven Intersection Management Solutions for Mixed Traffic of Human-Driven and Connected and Automated Vehicles
Creators: name: Bashiri, Masoud
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This dissertation proposes two solutions for urban traffic control in the presence of connected and automated vehicles. First a centralized platoon-based controller is proposed for the cooperative intersection management problem that takes advantage of the platooning systems and V2I communication to generate fast and smooth traffic flow at a single intersection. Second, a data-driven approach is proposed for adaptive signal control in the presence of connected vehicles. The proposed system relies on a data-driven method for optimal signal timing and a data-driven heuristic method for estimating routing decisions. It requires no additional sensors to be installed at the intersection, reducing the installation costs compared to typical settings of state-of-the-practice adaptive signal controllers. The proposed traffic controller contains an optimal signal timing module and a traffic state estimator. The signal timing module is a neural network model trained on microscopic simulation data to achieve optimal results according to a given performance metric such as vehicular delay or average queue length. The traffic state estimator relies on connected vehicles' information to estimate the traffic's routing decisions. A heuristic method is proposed to minimize the estimation error. With sufficient parameter tuning, the estimation error decreases as the market penetration rate (MPR) of connected vehicles grows. Estimation error is below 30% for an MPR of 10% and it shrinks below 20% when MPR grows larger than 30%. Simulations showed that the proposed traffic controller outperforms Highway Capacity Manual's methodology and given proper offline parameter tuning, it can decrease average vehicular delay by up to 25%.
description: PhD Dissertation
High-resolution X-ray spectroscopy of the ultracompact LMXB pulsar 4U 1626-67
Creators: name: Krauss, Miriam I.
name: Schulz, Norbert S.
name: Chakrabarty, Deepto
name: Juett, Adrienne M.
name: Cottam, Jean
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: [abridged] We report results from four recent observations of the ultracompact LMXB pulsar 4U 1626-67. All the observations obtained high-resolution X-ray spectra of the system, two from the Chandra X-ray Observatory using the HETGS, and two from the XMM-Newton Observatory using the RGS as well as the EPIC PN and MOS. These data allow us to study in detail the prominent Ne and O emission line complexes which make 4U 1626-67 unique among LMXBs. The observations were spaced over a period of 3 years for a total observing time of 238 ks, allowing us to monitor the line regions as well as the overall source flux, continuum spectrum, and timing properties. The structure of the emission lines and the ratios of the components of the helium-like Ne IX and O VII triplets support the hypothesis that they are formed in the high-density environment of the accretion disk. We do not find any significant changes in the line widths or ratios over this time period, though we note that the line equivalent widths decrease. We are able to place constraints on the strengths of the Ne K, Fe L, and O K photoelectric absorption edges, and find that the data do not require an overabundance of Ne or O in the system relative to the expected ISM values. We find that the pulsar is still spinning down, and note that the pulse profile has changed significantly from what was found prior to the torque reversal in 1990, suggesting that this event may be linked to a change in the geometry of the accretion column. The flux of 4U 1626-67 continues to decrease, in keeping with the trend of the last approximately 30 years over which it has been observed. Taking into consideration current theory on disk stability, we expect that 4U 1626-67 will enter a period of quiescence in 2-15 years.
description: 10 pages, 7 figures, submitted to ApJ
Supplementary Material 2= Results from The coevolution of rostral keratin and tooth distribution in dinosaurs
Creators: name: Aguilar-Pedrayes, Isaura
name: Gardner, Jacob D.
name: Organ, Chris L.
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified
classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: Detailed tables and figures of analysis results of research not included in the main manuscript.
EXPERIMENTAL INVESTIGATION OF A QUAD-ROTOR BIPLANE MICRO AIR VEHICLE
Creators: name: Bogdanowicz, Christopher Michael
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Aerospace engineering
subject: Engineering
subject: biplane
subject: MAV
subject: quadrotor

description: Micro air vehicles are expected to perform demanding missions requiring efficient operation in both hover and forward flight. This thesis discusses the development of a hybrid air vehicle which seamlessly combines both flight capabilities: hover and high-speed forward flight. It is the quad-rotor biplane, which weighs 240 grams and consists of four propellers with wings  arranged in a biplane configuration. The performance of the vehicle system was investigated in conditions representative of flight through a series of wind tunnel experiments. These studies provided an understanding of propeller-wing interaction effects and system trim analysis. This showed that the maximum speed of 11 m/s and a cruise speed of 4 m/s were achievable and that the cruise power is approximately one-third of the hover power. Free flight testing of the vehicle successfully highlighted its ability to achieve equilibrium transition flight. Key design parameters were experimentally investigated to understand their effect on overall performance. It was found that a trade-off between efficiency and compactness affects the final choice of the design. Design improvements have allowed for decreases in vehicle weight and ground footprint, while increasing structural soundness. Numerous vehicle designs, models, and flight tests have proven system scalability as well as versatility, including an upscaled model to be utilized in an extensive commercial package delivery system. Overall, the quad-rotor biplane is proven to be an efficient and effective multi-role vehicle.
NGS in FGR placenta
Creators: name: 陈雪雨(Xueyu Chen)
Publisher: name: CNGB
Year: 2022
Subjects: Raw sequence reads
Multiisolate

description: NGS was performed in placenta samples from normal (N=3) and FGR patients (N=3) to explore the role of placenta abnormalities in FGR pathogenesis.
Simulation of Coaxial Rotor Interactional Aerodynamics using Coupled CFD-CSD
Creators: name: Passe, Bradley
Publisher: name: Digital Repository at the University of Maryland
Year: 2015
Subjects: subject: Aerospace engineering

description: Performance and range requirements for next-generation rotary-wing aircraft

have sparked renewed interests in the coaxial rotor configuration, augmented with

lift and/or thrust compounding. Often, thrust augmentation is provided in the

form of a propeller or jet engine to counteract the airframe and rotor drag in high

 speed forward flight. A notional X2TD coaxial compound configuration has been

chosen to perform numerical simulations in forward flight with CFD-CSD coupling.

The delta loose coupling method is used to couple the CFD and CSD models.

Using the CFD results to correct the reduced order aerodynamics in this loose

coupling framework will drive toward a deeper understanding of rotor-rotor and

rotor-fuselage interactions in the forward flight regime. Using unrestricted data of

 the X2TD flight test program the in-house CSD code (PRASADUM) was validated

against both CAMRAD II and flight test data results. Helios, using both Overflow

and NSU3D as near-body solvers was used as the CFD solver for the CFD-CSD

coupling framework. The CFD-CSD coupling framework was used for several key

flight conditions of the X2TD, namely 55, 100, and 150 knots. A comparison study

at both 55 and 150 knots was conducted between an isolated coaxial rotor system

case, and 3 other cases incorporating three different fuselage models to the CFD

analysis: a simple fuselage body, a complex fuselage body containing horizontal and

 vertical stabilizers, and lastly the complex fuselage body with the added inclusion

 of the rotor mast.
AutoDS: Towards Human-Centered Automation of Data Science
Creators: name: Wang, Dakuo
name: Andres, Josh
name: Weisz, Justin
name: Oduor, Erick
name: Dugan, Casey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Data science (DS) projects often follow a lifecycle that consists of laborious tasks for data scientists and domain experts (e.g., data exploration, model training, etc.). Only till recently, machine learning(ML) researchers have developed promising automation techniques to aid data workers in these tasks. This paper introduces AutoDS, an automated machine learning (AutoML) system that aims to leverage the latest ML automation techniques to support data science projects. Data workers only need to upload their dataset, then the system can automatically suggest ML configurations, preprocess data, select algorithm, and train the model. These suggestions are presented to the user via a web-based graphical user interface and a notebook-based programming user interface. We studied AutoDS with 30 professional data scientists, where one group used AutoDS, and the other did not, to complete a data science project. As expected, AutoDS improves productivity; Yet surprisingly, we find that the models produced by the AutoDS group have higher quality and less errors, but lower human confidence scores. We reflect on the findings by presenting design implications for incorporating automation techniques into human work in the data science lifecycle.
Divergence of the entanglement range in low dimensional quantum systems
Creators: name: Amico, L.
name: Baroni, F.
name: Fubini, A.
name: Patane', D.
name: Tognetti, V.
name: Verrucchi, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the pairwise entanglement close to separable ground states of a class of one dimensional quantum spin models. At T=0 we find that such ground states separate regions, in the space of the Hamiltonian parameters, which are characterized by qualitatively different types of entanglement, namely parallel and antiparallel entanglement; we further demonstrate that the range of the Concurrence diverges while approaching separable ground states, therefore evidencing that such states, with uncorrelated fluctuations, are reached by a long range reshuffling of the entanglement. We generalize our results to the analysis of quantum phase transitions occurring in bosonic and fermionic systems. Finally, the effects of finite temperature are considered: At T>0 we evidence the existence of a region where no pairwise entanglement survives, so that entanglement, if present, is genuinely multipartite.
description: 6 pages, 4 figures
Supplementary Material 2= Results from The coevolution of rostral keratin and tooth distribution in dinosaurs
Creators: name: Aguilar-Pedrayes, Isaura
name: Gardner, Jacob D.
name: Organ, Chris L.
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified
classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: Detailed tables and figures of analysis results of research not included in the main manuscript.
The density of states method at non-zero chemical potential
Creators: name: Fodor, Zoltan
name: Katz, Sandor D.
name: Schmidt, Christian
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the QCD phase diagram by first principle lattice calculations at so far unreached high densities. For this purpose we employ the density of states method. Unimproved staggered fermions, which describe four quark flavors in the continuum are used in this analysis. Though the method is quite expensive, small lattices show an indication for a triple-point connecting three different phases on the phase diagram.
description: 15 pages, 8 figures, added references, version published in JHEP
Elicitation - switch-reference and relative clauses
Creators: name: Piño Bonangué, José
name: Clem, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2024
Subjects: subject: amc

description: This bundle contains recordings and associated notes from an elicitation session conducted by Emily Clem with José Piño Bonangué. Topics covered include switch-reference and relative clauses.
Unification of $κ$-Minkowski and extended Snyder spaces
Creators: name: Meljanac, S.
name: Mignemi, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In a recent paper, we have studied associative realizations of the noncommutative extended Snyder model, obtained by including the Lorentz generators (tensorial coordinates) and their conjugated momenta. In this paper, we extend this result to also incorporate a covariant realization of the $κ$-Poincaré spacetime. We obtain the coproduct, the associative star product and the twist in a Weyl-ordered realization, to first order in the noncommutativity parameters. This could help the construction of a quantum field theory based on this geometry.
description: 8 pages
Interpolation of Sobolev spaces, Littlewood-Paley inequalities and Riesz transforms on graphs
Creators: name: Badr, Nadine
name: Russ, Emmanuel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 60J10 (Primary) 42B20, 42B25 (Secondary)

description: Let $Γ$ be a graph endowed with a reversible Markov kernel $p$, and $P$ the associated operator, defined by $Pf(x)=\sum_y p(x,y)f(y)$. Denote by $\nabla$ the discrete gradient. We give necessary and/or sufficient conditions on $Γ$ in order to compare $\Vert \nabla f \Vert_{p}$ and $\Vert (I-P)^{1/2}f \Vert_{p}$ uniformly in $f$ for $12$. The proofs rely on recent techniques developed to handle operators beyond the class of Calderón-Zygmund operators. For our purpose, we also prove Littlewood-Paley inequalities and interpolation results for Sobolev spaces in this context, which are of independent interest.
Resonant Rayleigh Scattering in Ordered and Intentionally Disordered Semiconductor Superlattices
Creators: name: Bellani, V.
name: Amado, M.
name: Diez, E.
name: Koerdt, C.
name: Potemski, M.
name: Hey, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the experimental study of resonant Rayleigh scattering in GaAs-AlGaAs superlattices with ordered and intentionally disordered potential profiles (correlated and uncorrelated) in the growth direction z. We show that the intentional disorder along z modify markedly the energy dispersion of the dephasing rates of the excitons. The application of an external magnetic field in the same direction allows the continuous tuning of the in plane exciton localization and to study the interplay between the in plane and vertical disorder.
description: 6 pages, 3 figures. Submittes to Phys. Rev. B
Supplementary Material 1= Methods from The coevolution of rostral keratin and tooth distribution in dinosaurs
Creators: name: Aguilar-Pedrayes, Isaura
name: Gardner, Jacob D.
name: Organ, Chris L.
Publisher: name: The Royal Society
Year: 2023
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified
classificationCode: 370506
subject: Palaeontology (incl. palynology)

description: Extended description of methods of research.
A study of unsteady wake-boundary layer interaction in turbomachines
Creators: name: Gete, Zenebe
Publisher: name: University of British Columbia
Year: 2009

description: The relative motions of rotor and stator blade rows in a turbomachine generate periodically unsteady flow subject to traveling wake perturbations. To better understand the attendant wake-boundary layer interactions, the study used an experimental twodimensional physical model and a new calculation procedure. In the range of Reynolds number 0.144 x 10⁵ to 1.44 x 10⁵, measurements of instantaneous boundary layer velocity and wall shear stress were made on a tripped flat plate with a hot wire probe and a glue-on probe. Data was reduced through the process of ensemble averaging. For the reduced frequencies tested (ω = 0.33 to 9.33), skin friction coefficient was found to be frequency dependent and to have values up to twice that of the unperturbed boundary layers. Due to the nonlinear interactions with the boundary layer, the traveling discrete frequency wakes increased velocity profile fullness and increased random turbulent fluctuations. Unlike the response to stationary-wave-like external disturbances, for the traveling wake fluctuations the boundary layers exhibited increasing negative velocity phase shifts from 0° in the free stream to values of order 360° at the wall. Amplitude overshoots occurred close to the wall and undershoots were observed in the outer region of the profile. Calculated results of steady and unsteady velocity profiles and skin friction compare reasonably with experiment. Although the agreement in phase shift was rather poor, in both experiment and calculation the negative phase shift aspect of the traveling-wave fluctuations has been captured.
PoolTestR: An R package for estimating prevalence and regression modelling with pooled samples
Creators: name: McLure, Angus
name: O'Neill, Ben
name: Mayfield, Helen
name: Lau, Colleen
name: McPherson, Brady
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: Other Statistics (stat.OT)
subject: FOS: Computer and information sciences

description: Pooled testing (also known as group testing), where diagnostic tests are performed on pooled samples, has broad applications in the surveillance of diseases in animals and humans. An increasingly common use case is molecular xenomonitoring (MX), where surveillance of vector-borne diseases is conducted by capturing and testing large numbers of vectors (e.g. mosquitoes). The R package PoolTestR was developed to meet the needs of increasingly large and complex molecular xenomonitoring surveys but can be applied to analyse any data involving pooled testing. PoolTestR includes simple and flexible tools to estimate prevalence and fit fixed- and mixed-effect generalised linear models for pooled data in frequentist and Bayesian frameworks. Mixed-effect models allow users to account for the hierarchical sampling designs that are often employed in surveys, including MX. We demonstrate the utility of PoolTestR by applying it to a large synthetic dataset that emulates a MX survey with a hierarchical sampling design.
description: 18 pages, 2 figures, 1 table, 2 boxes
On the near-threshold enhancement in $J/ψ\to γX$ with $X\toωϕ$
Creators: name: Zhao, Qiang
name: Zou, Bing-Song
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the possibility of producing the enhancement observed in $J/ψ\to γX$ with $X\to ωϕ$ at BES by intermediate meson rescatterings through $f_0(1710)\to PP\to ωϕ$, $f_0(1710)\to VV\to ωϕ$, and $f_0(1710)\to SS\to ωϕ$. We find that intermediate meson rescatterings can produce some enhancement near the $ωϕ$ threshold. Implications about the property of this enhancement are discussed.
description: 12 pages, 6 figures; Version to appear in Phys. Rev. D
Partial-wave analysis of $K^+$ nucleon scattering
Creators: name: Gibbs, W. R.
name: Arceo, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have performed a partial-wave analysis of K$^+$-nucleon scattering in the momentum range from 0 to 1.5 GeV/c addressing the uncertainties of the results and comparing them with several previous analyses. It is found that the treatment of the reaction threshold behavior is particularly important. We find a T=0 scattering length which is not consistent with zero, as has been claimed by other analyses. The T=0 phase shifts for $\ell>0$ are consistent with a pure spin-orbit potential. Some indications for the production of a T=0 pentaquark with spin-parity D5/2+ are discussed.
description: Modified to add references and minor symbol changes. Accepted for Phys. Rev. C
ความสัมพันธ์ระหว่างภาวะผู้นำที่มีประสิทธิผลและประสิทธิภาพการบริหารองค์กรของธุรกิจส่งออกอาหารไทยไปญี่ปุ่น
Creators: name: ปะวริศาร์ อาสว่าง
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: ภาวะผู้นำที่มีประสิทธิผล, ประสิทธิภาพการบริหารองค์กร, ธุรกิจส่งออกอาหาร

description: 4, 34, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Search for electron antineutrino interactions with the Borexino Counting Test Facility at Gran Sasso
Creators: name: Borexino Collaboration
name: Balata, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Electron antineutrino interactions above the inverse beta decay energy of protons ($E_\barν_e>$1.8) where looked for with the Borexino Counting Test Facility (CTF). One candidate event survived after rejection of background, which included muon-induced neutrons and random coincidences. An upper limit on the solar $\barν_{e}$ flux, assumed having the $^8$B solar neutrino energy spectrum, of 1.1$\times10^{5}$ cm$^{-2}$~s$^{-1}$ (90% C.L.) was set with a 7.8 ton $\times$ year exposure. This upper limit corresponds to a solar neutrino transition probability, $ν_{e} \to \barν_{e}$, of 0.02 (90% C.L.). Predictions for antineutrino detection with Borexino, including geoneutrinos, are discussed on the basis of background measurements performed with the CTF.
description: 10 pages, 9 figures, 5 tables
A new analytical approximation of luminosity distance by optimal HPM-Padé technique
Creators: name: Yu, Bo
name: Zhang, Jian-Chen
name: Zhang, Tong-Jie
name: Zhang, Tingting
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences
subject: G.2.2
subject: 32E30

description: By the use of homotopy perturbation method-Padé (HPM-Padé) technique, a new analytical approximation of luminosity distance in the flat universe is proposed, which has the advantage of significant improvement for accuracy in approximating luminosity distance over cosmological redshift range within $0\leq z\leq 2.5$. Then we confront the analytical expression of luminosity distance that is obtained by our new approach with the observational data, for the purpose of checking whether it works well. In order to probe the robustness of the proposed method, we also confront it to supernova type Ia and recent data on the Hubble expansion rate $H(z)$. Markov Chain Monte Carlo (MCMC) code emcee is used in the data fitting. The result indicates that it works fairly well.
description: 23 pages, 7 figures, 2 tables; accepted for publication in Physics of the Dark Universe
Analysis of squeal noise and mode coupling instabilities including damping and gyroscopic effects
Creators: name: Hervé, Benjamin
name: Sinou, Jean-Jacques
name: Mahé, Hervé
name: Jezequel, Louis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Physics (physics.class-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: This paper deals with an audible disturbance known as automotive clutch squeal noise from the viewpoint of friction-induced mode coupling instability. Firstly, an auto-coupling model is presented showing a non-conservative circulatory effect originating from friction forces. Secondly, the stability of an equilibrium is investigated by determining the eigenvalues of the system linearized equations. The effects of the circulatory and gyroscopic actions are examined analytically and numerically to determine their influence on the stability region. Separate and combined effects are analysed with and without structural damping and important information is obtained on the role of each parameter and their interactions regarding overall stability. Not only is structural damping shown to be of primary importance, as reported in many previous works, this article also highlights a particular relationship with gyroscopic effects. A method of optimizing both the stability range and its robustness with respect to uncertainty on system parameters is discussed after which practical design recommendations are given.
ผลกระทบของศักยภาพทางการตลาดเชิงกลยุทธ์ที่มีต่อผลการดำเนินงานของธุรกิจตัวแทนประกันวินาศภัยในประเทศไทย
Creators: name: ปิยนุช พิลารักษ์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: ศักยภาพทางการตลาดเชิงกลยุทธ์, ผลการดำเนินงาน, ธุรกิจตัวแทนประกันวินาศภัย

description: 4, 34, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
Magnetic field and chromospheric activity evolution of HD75332: a rapid magnetic cycle in an F star without a hot Jupiter
Creators: name: Brown, E. L.
name: Marsden, S. C.
name: Mengel, M. W.
name: Jeffers, S. V.
name: Millburn, I.
name: Mittag, M.
name: Petit, P.
name: Vidotto, A. A.
name: Morin, J.
name: See, V.
name: Jardine, M.
name: González-Pérez, J. N.
name: Collaboration, the BCool
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Studying cool star magnetic activity gives an important insight into the stellar dynamo and its relationship with stellar properties, as well as allowing us to place the Sun's magnetism in the context of other stars. Only 61 Cyg A (K5V) and $τ$ Boo (F8V) are currently known to have magnetic cycles like the Sun's, where the large-scale magnetic field polarity reverses in phase with the star's chromospheric activity cycles. $τ$ Boo has a rapid $\sim$240 d magnetic cycle, and it is not yet clear whether this is related to the star's thin convection zone or if the dynamo is accelerated by interactions between $τ$ Boo and its hot Jupiter. To shed light on this, we studied the magnetic activity of HD75332 (F7V) which has similar physical properties to $τ$ Boo and does not appear to host a hot Jupiter. We characterized its long term chromospheric activity variability over 53 yrs and used Zeeman Doppler Imaging to reconstruct the large-scale surface magnetic field for 12 epochs between 2007 and 2019. Although we observe only one reversal of the large-scale magnetic dipole, our results suggest that HD75332 has a rapid $\sim$1.06 yr solar-like magnetic cycle where the magnetic field evolves in phase with its chromospheric activity. If a solar-like cycle is present, reversals of the large-scale radial field polarity are expected to occur at around activity cycle maxima. This would be similar to the rapid magnetic cycle observed for $τ$ Boo, suggesting that rapid magnetic cycles may be intrinsic to late-F stars and related to their shallow convection zones.
description: 23 pages, 14 figures, accepted for publication in MNRAS
ผลกระทบของการติดตามการปฏิบัติงานที่มีต่อประสิทธิภาพการควบคุมภายในของธุรกิจผลิตชิ้นส่วนยานยนต์ในประเทศไทย
Creators: name: ปิยะรักษ์ สิงทองทัศน์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: การติดตามการปฏิบัติงาน, ประสิทธิภาพการควบคุมภายใน, ธุรกิจผลิตชิ้นส่วนยานยนต์ในประเทศไทย

description: 4, 34, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม
The effects of exercise on cognition post-stroke: are there sex differences? A systematic review and meta-analysis
Creators: name: Khattab, Shereen
name: Wiley, Elise
name: Fang, Hanna
name: Richardson, Julie
name: MacDermid, Joy
name: Tang, Ada
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The aim of this systematic review was to investigate if sex moderated the effect of exercise on cognition in adults post-stroke. A systematic review was conducted of randomized controlled trials that involved adults ≥18 years with stroke, any exercise intervention, and reported any outcome related to cognitive function. We compared effect sizes of cognitive outcomes between studies of lower and higher proportion of females (CRD42018092757). The effects of exercise did not differ between studies of higher and lower female proportions with respect to memory (χ2 =1.52, p = 0.22), executive function (χ2 = 0.56, p = 0.45; Chi2 = 0.00, p = 0.98), language (Chi2 = 3.17, p = 0.08) or global cognition (χ2 = 0.88, p = 0.35). There were no sex differences in the effects of exercise on memory, executive functioning, language or global cognition in individuals with stroke. Further research is warranted to address sex differences in individuals with stroke to enable better targeting, prevention, and interventions in stroke rehabilitation.IMPLICATIONS FOR REHABILITATIONUnderstanding sex differences and potentially similarities in the relationship between exercise and cognition is an important step in enhancing stroke rehabilitation and the development of optimal, sex-specific rehabilitation.Although our findings suggest that there is no clear rationale for incorporating sex into our clinical decision making, it is still imperative to consider sex factors in research and report results in the literature disaggregated by sex to help inform clinical practice. Understanding sex differences and potentially similarities in the relationship between exercise and cognition is an important step in enhancing stroke rehabilitation and the development of optimal, sex-specific rehabilitation. Although our findings suggest that there is no clear rationale for incorporating sex into our clinical decision making, it is still imperative to consider sex factors in research and report results in the literature disaggregated by sex to help inform clinical practice.
การสร้างแบบทดสอบคุณลักษณะเด่นด้านเคมี สำหรับนักเรียนชั้นมัธยมศึกษาปีที่ 3
Creators: name: พิมพ์กมล พลอ่อนสา
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2558
Subjects: แบบทดสอบคุณลักษณะเด่นด้านเคมี, มัธยมศึกษา

description: 4, 34, วารสารมนุษยศาสตร์และสังคมศาสตร์ มหาวิทยาลัยมหาสารคาม