cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum-limited estimation of continuous spontaneous localization
Creators: name: McMillen, Sam
name: Brunelli, Matteo
name: Carlesso, Matteo
name: Bassi, Angelo
name: Ulbricht, Hendrik
name: Paris, Matteo G. A.
name: Paternostro, Mauro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We apply the formalism of quantum estimation theory to extract information about potential collapse mechanisms of the continuous spontaneous localisation (CSL) form. In order to estimate the strength with which the field responsible for the CSL mechanism couples to massive systems, we consider the optomechanical interaction between a mechanical resonator and a cavity field. Our estimation strategy passes through the probing of either the state of the oscillator or that of the electromagnetic field that drives its motion. In particular, we concentrate on all-optical measurements, such as homodyne and heterodyne measurements. We also compare the performances of such strategies with those of a spin-assisted optomechanical system, where the estimation of the CSL parameter is performed through time-gated spin-like measurements.
description: 8 pages, 3 figures, RevTeX4-1; accepted for publication in Phys. Rev. A
Change-point detection under dependence based on two-sample U-statistics
Creators: name: Dehling, Herold
name: Fried, Roland
name: Garcia, Isabel
name: Wendler, Martin
Publisher: name: Technische Universität Dortmund
Year: 2013
Subjects: subject: change-point problems
subject: two-sample U-statistics
subject: weakly dependent data
subject: 310
subject: 330
subject: 620

description: We study the detection of change-points in time series. The classical CUSUM statistic for detection of jumps in the mean is known to be sensitive to outliers. We thus propose a robust test based on the Wilcoxon two-sample test statistic. The asymptotic distribution of this test can be derived from a functional central limit theorem for two-sample U-statistics. We extend a theorem of Csorgo and Horvath to the case of dependent data.
description: Discussion Paper / SFB 823;15/2013
The Quantum Field Theory of K-mouflage
Creators: name: Brax, Philippe
name: Valageas, Patrick
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider K-mouflage models which are K-essence theories coupled to matter. We analyse their quantum properties and in particular the quantum corrections to the classical Lagrangian. We setup the renormalisation programme for these models and show that K-mouflage theories involve a recursive construction whereby each set of counter-terms introduces new divergent quantum contributions which in turn must be subtracted by new counter-terms. This tower of counter-terms can be constructed by recursion and allows one to calculate the finite renormalised action of the model. In particular, the classical action is not renormalised and the finite corrections to the renormalised action contain only higher derivative operators. We establish an operational criterion for classicality, where the corrections to the classical action are negligible, and show that this is satisfied in cosmological and astrophysical situations for (healthy) K-mouflage models which pass the solar system tests. We also find that these models are quantum stable around astrophysical and cosmological backgrounds. We then consider the possible embedding of the K-mouflage models in an Ultra-Violet completion. We find that the healthy models which pass the solar system tests all violate the positivity constraint which would follow from the unitarity of the putative UV completion, implying that these healthy K-mouflage theories have no UV completion. We then analyse their behaviour at high energy and we find that the classicality criterion is satisfied in the vicinity of a high energy collision implying that the classical K-mouflage theory can be applied in this context. Moreover, the classical description becomes more accurate as the energy increases, in a way compatible with the classicalisation concept.
description: 39 pages, 6 figures
A Sum-Rules Analysis of Next-to-Leading-Order (NLO) QCD Perturbative Contributions to a $J^{PC}=0^{+-}$, $du\bar{d}\bar{u}$ Tetraquark Correlator
Creators: name: Ray, K.
name: Harnett, D.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculated next-to-leading-order (NLO) QCD perturbative contributions to a $J^{PC}=0^{+-}$, $d u\bar d\bar u$ tetraquark (diquark-antidiquark) correlator in the chiral limit of massless $u$ and $d$ quarks. At NLO, there are four quark self-energy diagrams and six gluon-exchange diagrams. Nonlocal divergences were cancelled using diagrammatic renormalization. Dimensionally regularized integrals were numerically computed using pySecDec. The combination of pySecDec with diagrammatic renormalization establishes a valuable new methodology for NLO calculations of QCD correlation functions. Compared to leading-order (LO) perturbation theory, we found that NLO perturbation theory is significant. To quantify the impact of NLO perturbation theory on physical predictions, we computed NLO perturbative contributions to QCD Laplace, Gaussian, and finite-energy sum rules. Using QCD sum rules, we determined upper and lower bounds on the $0^{+-}$, $d u\bar d\bar u$ tetraquark ground-state mass, $M$: at NLO in perturbation theory, we found $2.2~\text{GeV}\lesssim M\leq 4.2~\text{GeV}$ whereas, at LO, we found $2.4~\text{GeV}\lesssim M\leq 4.6~\text{GeV}$. This mass range suggests the possibility of mixing between $0^{+-}$, light-quark (i.e., $u$ and $d$ quarks) hybrid and $d u\bar d\bar u$ tetraquark states. Taking into account uncertainties in QCD parameters, we found no evidence for a $0^{+-}$, $d u\bar d\bar u$ tetraquark under 1.9 GeV.
description: 22 pages, 13 figures. Updated version contains additional discussion
Mapping of strain and electric fields in GaAs/AlGaAs quantum-well samples by laser-assisted NMR
Creators: name: Suter, Dieter
name: Lenzmann, Björn
name: Eickhoff, Marcus
name: Hayes, Sophia E.
name: Wieck, Andreas D.
Publisher: name: The American Physical Society
Year: 2003
Subjects: subject: 530

description: The usefulness of semiconductor heterostructures derives from the possibility to engineer their electronic and optical properties to match the requirements of many different applications. Optically detected nuclear magnetic resonance provides the possibility to map microscopic properties of such samples with a high spatial resolution through the splitting of resonance lines. In a multiple quantum-well sample, we measure the distortion of the crystal lattice and find variations of the order of 10^(-5) over distances of a few mm. Internal electric fields also cause resonance line splittings. Comparing the electric field-induced resonance line splittings in different quantum wells, we mapped the vertical variation of the electric field from a Schottky contact with a spatial resolution of some 40 nm.
華埠通訊 Vol. 04, Issue 02, June 1998
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
The HPS electromagnetic calorimeter
Creators: name: Balossino, Ilaria
name: Baltzell, Nathan
name: Battaglieri, Marco
name: Bondi, Mariangela
name: Buchanan, Emma
name: Calvo, Daniela
name: Celentano, Andrea
name: Charles, Gabriel
name: Colaneri, Luca
name: D'Angelo, Annalisa
name: De Napoli, Marzio
name: De Vita, Raffaella
name: Dupre, Raphael
name: Egiyan, Hovanes
name: Ehrhart, Mathieu
name: Filippi, Alessandra
name: Garcon, Michel
name: Gevorgyan, Nerses
name: Girod, Francois-Xavier
name: Guidal, Michel
name: Holtrop, Maurik
name: Iurasov, Volodymyr
name: Kubarovsky, Valery
name: Livingston, Kenneth
name: McCarty, Kyle
name: McCormick, Jeremy
name: McKinnon, Bryan
name: Osipenko, Mikhail
name: Paremuzyan, Rafayel
name: Randazzo, Nunzio
name: Rauly, Emmanuel
name: Raydo, Benjamin
name: Rindel, Emmanuel
name: Rizzo, Alessandro
name: Rosier, Philippe
name: Sipala, Valeria
name: Stepanyan, Stepan
name: Szumila-Vance, Holly
name: Weinstein, Lawrence
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The Heavy Photon Search experiment (HPS) is searching for a new gauge boson, the so-called "heavy photon." Through its kinetic mixing with the Standard Model photon, this particle could decay into an electron-positron pair. It would then be detectable as a narrow peak in the invariant mass spectrum of such pairs, or, depending on its lifetime, by a decay downstream of the production target. The HPS experiment is installed in Hall-B of Jefferson Lab. This article presents the design and performance of one of the two detectors of the experiment, the electromagnetic calorimeter, during the runs performed in 2015-2016. The calorimeter's main purpose is to provide a fast trigger and reduce the copious background from electromagnetic processes through matching with a tracking detector. The detector is a homogeneous calorimeter, made of 442 lead-tungstate (PbWO4) scintillating crystals, each read out by an avalanche photodiode coupled to a custom trans-impedance amplifier.
description: 34 pages, 25 figures
Developments in Gaussian processes with applications to climate science and network problems.
Creators: name: Pinder, Thomas
Publisher: name: Lancaster University
Year: 2023

description: The ability to efficiently model complex datasets using probabilistic models is a key component of many machine learning workflows as it offers the ability to extract accurate predictions and well-characterised uncertainty estimates. Consequently, it becomes possible to develop models that can be deployed as decision-making tools. However, evaluating such models is often computationally expensive, particularly when assumptions of independence and identically distributed data can no longer be made. This thesis explores how Gaussian process models can be used to model climate data, and how the kernel function of a Gaussian process can be adapted to operate on data observed on a network. Methodological developments are proposed to enable faster inference for Gaussian processes, to use Gaussian processes as tools for embedding hypergraphs, and to extract latent functions from vectorvalued datasets. In application, this thesis explores the effect of Covid-19 on air pollution in the United Kingdom, how air pollution varies at a street-level, the latent structure of political networks, and what future warmings can be expected on planet Earth. The consideration of how such models can be computationally developed is carefully considered throughout, with a specific chapter dedicated to the development of a new Gaussian process software package that allows for new computational methods to be developed and tested.
Measuring Brand Equity of Paints in Addis Ababa (the Case of Nefas Silk and DIL Paints)
Creators: name: Beyene, Mahedere
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2019

description: The growth in construction of commercial and residential buildings resulted for the growth of paint companies in Ethiopia market. Paint market in the major cities of the country has become increasingly competitive, thus indicating the need to build strong brand to increase the loyalty of their customers and increase company's market share. Therefore this study aimed to verify the determinants of brand equity of paint products based on consumers' perception of paint market. The study is based on Aaker brand equity model Aaker (1996), which comprise the four brand equity constructs, such as: brand awareness, perceived quality, brand loyalty and brand association. A multistage sampling technique was used to determine the sample size of the respondents. A self administered questionnaire was distributed to 140 respondents from which 132 were obtained to be valid with a response rate of 94 percent. Reliability test was performed to check the reliability of data. All items were found to have a Cronbach's alpha value greater that 0.7 and the entire scale value of alpha was found to be 0.854 indicating the data was reliable for further analysis. Correlation test was conducted to find out relationships among four components of brand equity. The result of the analysis indicated all dimensions of paint brand equity were positively related and significant at (p=0.000). The findings of multiple regression analysis also indicated that all the dimensions had positive significant effect on customer value of Nefas Silk and DIL paints. The strong dominant factors was brand loyalty (0.276) followed by perceived quality (0.226) and brand association (0.200). This study forward an implications to researchers to consider industry specific scale items that can measure adequately brand equity and to managers to focus on marketing strategies that leads to higher brand loyalty and perceived quality of Nefas Silk and DIL paint brand equity
華埠通訊 Vol. 09, Issue 07, August 2007
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
Beyond Jcrit: a critical curve for suppression of H2-cooling in protogalaxies
Creators: name: Wolcott-Green, J.
name: Haiman, Z.
name: Bryan, G. L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Suppression of H2-cooling in early protogalaxies has important implications for the formation of supermassive black holes seeds, the first generation of stars, and the epoch of reionization. This suppression can occur via photodissociation of H2 (by ultraviolet Lyman-Werner [LW] photons) or by photodetachment of H-, a precursor in H2 formation (by infrared [IR] photons). Previous studies have typically adopted idealised spectra, with a blackbody or a power-law shape, in modeling the chemistry of metal-free protogalaxies, and utilised a single parameter, the critical UV flux, or Jcrit, to determine whether H2-cooling is prevented. This can be misleading, and that independent of the spectral shape, there is a critical curve in the (kLW , kH^- ) plane, where kLW and kH^- are the H2-dissocation rates by LW and IR photons, which determines whether a protogalaxy can cool below ~1000 Kelvin. We use a one-zone model to follow the chemical and thermal evolution of gravitationally collapsing protogalactic gas, to compute this critical curve, and provide an accurate analytical fit for it. We improve on previous works by considering a variety of more realistic Pop III or Pop II-type spectra from population synthesis models and perform fully frequency-dependent calculations of the H2-photodissociation rates for each spectrum. We compute the ratio kLW/kH^- for each spectrum, as well as the minimum stellar mass M_star, for various IMFs and metallicities, required to prevent cooling in a neighboring halo a distance d away. We provide critical M_star/d2 values for suppression of H2-cooling, with analytic fits, which can be used in future studies.
description: 9 pages, 7 figures, accepted for publication in MNRAS
Latency-Aware Radio Resource Optimization in Learning-Based Cloud-Aided Small Cell Wireless Networks
Creators: name: Syed, Tamoor-ul-Hassan
name: Sumudu, Samarakoon
name: Mehdi, Bennis
name: Latva-aho, Matti
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Low latency communication is one of the fundamental requirements for 5G wireless networks and beyond. In this paper, a novel approach for joint caching, user scheduling and resource allocation is proposed for minimizing the queuing latency in serving user's requests in cloud-aided wireless networks. Due to the slow temporal variations in user requests, a time-scale separation technique is used to decouple the joint caching problem from user scheduling and radio resource allocation problems. To serve the spatio-temporal user requests under storage limitations, a Reinforcement Learning (RL) approach is used to optimize the caching strategy at the small cell base stations by minimizing the content fetching cost. A spectral clustering algorithm is proposed to speed-up the convergence of the RL algorithm for a large content caching problem by clustering contents based on user requests. Meanwhile, a dynamic mechanism is proposed to locally group coupled base stations based on user requests to collaboratively optimize the caching strategies. To further improve the latency in fetching and serving user requests, a dynamic matching algorithm is proposed to schedule users and to allocate users to radio resources based on user requests and queue lengths under probabilistic latency constraints. Simulation results show the proposed approach significantly reduces the average delay from 21% to 90% compared to random caching strategy, random resource allocation and random scheduling baselines.
description: Accepted for publication in IEEE Transactions on Green Computing and Networking
Skyrmion Jellyfish in Driven Chiral Magnets
Creators: name: del Ser, Nina
name: Lohani, Vivek
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Chiral magnets can host topological particles known as skyrmions, which carry an exactly quantised topological charge $Q=-1$. In the presence of an oscillating magnetic field ${\bf B}_1(t)$, a single skyrmion embedded in a ferromagnetic background will start to move with constant velocity ${\bf v}_{\text{trans}}$. The mechanism behind this motion is similar to the one used by a jellyfish when it swims through water. We show that the skyrmion's motion is a universal phenomenon, arising in any magnetic system with translational modes. By projecting the equation of motion onto the skyrmion's translational modes and going to quadratic order in ${\bf B}_1(t)$, we obtain an analytical expression for ${\bf v}_{\text{trans}}$ as a function of the system's linear response. The linear response and consequently ${\bf v}_{\text{trans}}$ are influenced by the skyrmion's internal modes and scattering states, as well as by the ferromagnetic background's Kittel mode. The direction and speed of ${\bf v}_{\text{trans}}$ can be controlled by changing the polarisation, frequency and phase of the driving field ${\bf B}_1(t)$. For systems with small Gilbert damping parameter $α$, we identify two distinct physical mechanisms used by the skyrmion to move. At low driving frequencies, the skyrmion's motion is driven by friction, and $v_{\text{trans}}\simα$, whereas at higher frequencies above the ferromagnetic gap, the skyrmion moves by magnon emission, and $v_{\text{trans}}$ becomes independent of $α$.
description: 16 pages (including references), 5 figures. Supplementary: 8 pages. v2: small typos corrected, two references added. v3: minor revisions to the text in response to referee reports, six references added. v4: typos fixed, DOIs added to references. v5: fixed some sign mistakes and added some commas to improve readability of the text
Mid-infrared spectra of comet nuclei
Creators: name: Kelley, Michael S. P.
name: Woodward, Charles E.
name: Gehrz, Robert D.
name: Reach, William T.
name: Harker, David E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Jovian Trojan D-type asteroids have mid-infrared emissivity features strikingly similar to comet comae, suggesting that they have the same compositions and that the surfaces of the Trojans are highly porous. However, a direct comparison between a comet and asteroid surface has not been possible due to the paucity of spectra of comet nuclei at mid-infrared wavelengths. We present 5-35 μm thermal emission spectra of comets 10P/Tempel 2, and 49P/Arend-Rigaux observed with the Infrared Spectrograph on the Spitzer Space Telescope. Our analysis suggests the spectra are dominated by the comet nucleus. We fit each spectrum with the near-Earth asteroid thermal model (NEATM) and find sizes in agreement with previous values. However, the NEATM beaming parameters of the nuclei, 0.74 to 0.83, are systematically lower than the Jupiter-family comet population mean of 1.03+/-0.11, derived from 16- and 22-μm photometry. When the spectra are normalized by the NEATM model, a weak 10-μm silicate plateau is evident, with a shape similar to those seen in mid-infrared spectra of D-type asteroids. We compare, in detail, these comet nucleus emission features to those seen in spectra of the Jovian Trojan D-types (624) Hektor, (911) Agamemnon, and (1172) Aneas, as well as those seen in the spectra of seven comet comae. The comet comae present silicate features with two distinct shapes, either trapezoidal, or more rounded. The surfaces of Tempel 2, Arend-Rigaux, and Hektor best agree with the comae that present trapezoidal features. An emissivity minimum at 15 μm, present in the spectra of Tempel 2, Arend-Rigaux, Hektor, and Agamemnon, is also described, the origin of which remains unidentified. The compositional similarity between D-type asteroids and comets is discussed, and our data supports the hypothesis that they have similar origins in the early Solar System.
description: Abridged abstract; 46 pages, 10 figures; Author's accepted manuscript with revised acknowledgements
Dielectric hole burning spectroscopy of supercooled liquids
Creators: name: Böhmer, Roland
name: Schiener, B.
name: Chamberlin, R. V.
name: Diezemann, G.
Publisher: name: American Institute of Physics
Year: 1997
Subjects: subject: polymers
subject: organic compounds
subject: optical hole burning
subject: dielectric relaxation
subject: glass transition
subject: 530

description: The nonexponential response of propylene carbonate and glycerol near their glass transitions could be selectively altered using nonresonant spectral hole burning (NSHB) experiments. This observation provides evidence of the existence of a distribution of relaxation times in these supercooled liquids. NSHB is based on a pump, wait, and probe scheme and uses low-frequency large amplitude electrical fields to modify the dielectric relaxation. The temporal evolution of the polarization of the sample is then measured subsequent to a small voltage step. By variation of a recovery time inserted between pump and probe, the refilling of the spectral features could be monitored and was found to take place on the time scale set by the peak in the distribution. The recovery time and pump frequency dependences of the spectral modifications were successfully simulated using a set of coupled rate equations.
華埠通訊 Vol. 03, Issue 03, December 1996
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
Annotation and Analysis of Lexical Categories in L2 Italian
Creators: name: , Frontini
Publisher: name: Zenodo
Year: 2010
Subjects: L2 acquisition
Lexical categories
L2 Corpora
Pos Tagging

description: The goal of this thesis is to investigate whether certain morpho-syntactic peculiarities of Italian interlanguage can be recognized and studied by analyzing the characteristics and the distribution of lexical categories.
Iteration : a studio based exploration of pattern, architecture and geometry realised in new jewellery forms
Creators: name: Cameron, Melissa.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
On the Performance Analysis of RIS-Empowered Communications Over Nakagami-m Fading
Creators: name: Selimis, Dimitris
name: Peppas, Kostas P.
name: Alexandropoulos, George C.
name: Lazarakis, Fotis I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, we study the performance of wireless communications empowered by Reconfigurable Intelligent Surface (RISs) over Nakagami-m fading channels. We consider two phase configuration designs for the RIS, one random and another one based on coherent phase shifting. For both phase configuration cases, we present single-integral expressions for the outage probability and the bit error rate of binary modulation schemes, which can be efficiently evaluated numerically. In addition, we propose accurate closed-form approximations for the ergodic capacity of the considered system. For all considered metrics, we have also derived simple analytical expressions that become tight for large numbers of RIS reflecting elements. Numerically evaluated results compared with Monte Carlo simulations are presented in order to verify the correctness of the proposed analysis and showcase the impact of various system settings.
Dielectric relaxation in supercooled 1-propanol
Creators: name: Böhmer, Roland
name: Schiener, B.
Publisher: name: Elsevier
Year: 1995
Subjects: subject: 530

description: By combining time- and frequency-domain techniques, the dielectric response of 1-propanol has been measured in a spectral range covering eleven decades. In particular it has been demonstrated that the dielectric loss due to the main relaxation in 1-propanol exhibits the Debye width up to timescales of 1000 s. In order to extend the range in which the dynamics of propanol can be exploited to high temperatures, conductivity relaxation due to ionic impurities has been used. The occurrence of high-frequency relaxation processes has been studied in both isomers of propanol. It is shown that the 1-propanol data yield a master curve in a previously suggested scaling representation. However, owing to the presence of the high-frequency excitations, no agreement with the universal scaling form is obtained.
The Relationship Between Internal Marketing Practices And Employees' Organizational Commitment, The Case Of Awash Insurance Company S.C.
Creators: name: Ertiro, Habtamu
Publisher: name: National Academic Digital Repository of Ethiopia
Year: 2017

description: The objective of this study is to investigate the relationship between internal marketing and employees' organizational commitment in Awash Insurance Company (AIC). This research uses a cross-sectional study to survey the relationship between internal marketing and employees' organizational commitment. The population of interest in this study was professional staff of AIC. One hundred and twenty three questionnaires were distributed and 106 questionnaires were returned, yielding a response rate of 86.16%. The findings reveal that there is significant relationship between internal marketing and employees' organizational commitment. It is recommended that there is need for AIC to sensitized of their role in spearheading internal marketing initiatives, for a more proactive approach and for effective implementation of internal marketing strategies. The study will be of value to future scholars by stimulating further research to develop a better understanding of internal marketing best practices applied in Ethiopian insurance industry.
Interference between the modes of an all-dielectric meta-atom
Creators: name: Powell, David A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The modes of silicon meta-atoms are investigated, motivated by their use as building blocks of Huygens' metasurfaces. A model based on these modes is presented, giving a clear physical explanation of all features in the extinction spectrum. Counter-intuitively, this can show negative contributions to extinction, which are shown to arise from the interference between non-orthogonal modes. The direct and interference contributions to extinction are determined, showing that conservation of energy is preserved. The Huygens' condition of matched electric and magnetic dipole moments leads to strong forward scattering and suppressed back scattering. It is shown that higher order modes with appropriate symmetry generalise this condition, leading to multiple bands of directional scattering. The presented results are obtained using a robust approach to find the modes of nano-photonic scatterers, commonly referred to as quasi-normal modes. By utilising an integral formulation of Maxwell's equations, this work avoids the problem of normalising diverging far-fields, which other approaches require. The model and presented results are implemented in open-source code.
Speech enhancement using ego-noise references with a microphone array embedded in an unmanned aerial vehicle
Creators: name: Tengan, Elisa
name: Dietzen, Thomas
name: Ruiz, Santiago
name: Alkmim, Mansour
name: Cardenuto, João
name: van Waterschoot, Toon
Publisher: name: arXiv
Year: 2022
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: A method is proposed for performing speech enhancement using ego-noise references with a microphone array embedded in an unmanned aerial vehicle (UAV). The ego-noise reference signals are captured with microphones located near the UAV's propellers and used in the prior knowledge multichannel Wiener filter (PK-MWF) to obtain the speech correlation matrix estimate. Speech presence probability (SPP) can be estimated for detecting speech activity from an external microphone near the speech source, providing a performance benchmark, or from one of the embedded microphones, assuming a more realistic scenario. Experimental measurements are performed in a semi-anechoic chamber, with a UAV mounted on a stand and a loudspeaker playing a speech signal, while setting three distinct and fixed propeller rotation speeds, resulting in three different signal-to-noise ratios (SNRs). The recordings obtained and made available online are used to compare the proposed method to the use of the standard multichannel Wiener filter (MWF) estimated with and without the propellers' microphones being used in its formulation. Results show that compared to those, the use of PK-MWF achieves higher levels of improvement in speech intelligibility and quality, measured by STOI and PESQ, while the SNR improvement is similar.
Effects of age, sex, serostatus, and underlying comorbidities on humoral response post-SARS-CoV-2 Pfizer-BioNTech mRNA vaccination: a systematic review
Creators: name: Notarte, Kin Israel
name: Ver, Abbygail Therese
name: Velasco, Jacqueline Veronica
name: Pastrana, Adriel
name: Catahay, Jesus Alfonso
name: Salvagno, Gian Luca
name: Yap, Eric Peng Huat
name: Martinez-Sobrido, Luis
name: Torrelles, Jordi B.
name: Lippi, Giuseppe
name: Henry, Brandon Michael
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: Computational Biology

description: With the advent of the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) pandemic, several vaccines have been developed to mitigate its spread and prevent adverse consequences of the Coronavirus Disease 2019 (COVID-19). The mRNA technology is an unprecedented vaccine, usually given in two doses to prevent SARS-CoV-2 infections. Despite effectiveness and safety, inter-individual immune response heterogeneity has been observed in recipients of mRNA-based vaccines. As a novel disease, the specific immune response mechanism responsible for warding off COVID-19 remains unclear at this point. However, significant evidence suggests that humoral response plays a crucial role in affording immunoprotection and preventing debilitating sequelae from COVID-19. As such, this paper focused on the possible effects of age, sex, serostatus, and comorbidities on humoral response (i.e. total antibodies, IgG, and/or IgA) of different populations post-mRNA-based Pfizer-BioNTech vaccination. A systematic search of literature was performed through PubMed, Cochrane CENTRAL, Google Scholar, Science Direct, medRxiv, and Research Square. Studies were included if they reported humoral response to COVID-19 mRNA vaccines. A total of 32 studies were identified and reviewed, and the percent differences of means of reported antibody levels were calculated for comparison. Findings revealed that older individuals, male sex, seronegativity, and those with more comorbidities mounted less humoral immune response. Given these findings, several recommendations were proposed regarding the current vaccination practices. These include giving additional doses of vaccination for immunocompromised and elderly populations. Another recommendation is conducting clinical trials in giving a combined scheme of mRNA vaccines, protein vaccines, and vector-based vaccines.
The sacred ritual in private space and public space
Creators: name: Latham, Rone.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
華埠通訊 Vol. 11, Issue 04, June 2010
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223
subject: Community development
valueUri: http://id.worldcat.org/fast/870818

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
125 GeV Higgs boson mass and muon g-2 in 5D MSSM
Creators: name: Okada, Nobuchika
name: Tran, Hieu Minh
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the MSSM, the tension between the observed Higgs boson mass and the experimental result of the muon $g-2$ measurement requires a large mass splitting between stops and smuons/charginos/neutralinos. We consider a 5-dimensional (5D) framework of the MSSM with the Randall-Sundrum warped background metric, and show that such a mass hierarchy is naturally achieved in terms of geometry. In our setup, the supersymmetry is broken at the ultraviolet (UV) brane, while all the MSSM multiplets reside in the 5D bulk. An appropriate choice of the bulk mass parameters for the MSSM matter multiplets can naturally realize the sparticle mass hierarchy desired to resolve the tension. Gravitino is localized at the UV brane and hence becomes very heavy, while the gauginos spreading over the bulk acquire their masses suppressed by the 5th dimensional volume. As a result, the LSP neutralino is a candidate for the dark matter as usual in the MSSM. In addition to reproducing the SM-like Higgs boson mass of around 125 GeV and the measured value of the muon $g-2$, we consider a variety of phenomenological constraints, and present the benchmark particle mass spectra which can be explored at the LHC Run-2 in the near future.
description: 21 pages, 1 figure, Published in Physical Review D, October 2016
On a Calderón preconditioner for the symmetric formulation of the electroencephalography forward problem without barycentric refinements
Creators: name: Giunzioni, Viviana
name: G., John E. Ortiz
name: Merlini, Adrien
name: Adrian, Simon B.
name: Andriulli, Francesco P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We present a Calderón preconditioning scheme for the symmetric formulation of the forward electroencephalographic (EEG) problem that cures both the dense discretization and the high-contrast breakdown. Unlike existing Calderón schemes presented for the EEG problem, it is refinement-free, that is, the electrostatic integral operators are not discretized with basis functions defined on the barycentrically-refined dual mesh. In fact, in the preconditioner, we reuse the original system matrix thus reducing computational burden. Moreover, the proposed formulation gives rise to a symmetric, positive-definite system of linear equations, which allows the application of the conjugate gradient method, an iterative method that exhibits a smaller computational cost compared to other Krylov subspace methods applicable to non-symmetric problems. Numerical results corroborate the theoretical analysis and attest of the efficacy of the proposed preconditioning technique on both canonical and realistic scenarios.
Searching for an Environmental Self-Love: Humans and Nature in Rousseau’s Discourse on the Origins of Inequality
Creators: name: Bailey, Ryan
Publisher: name: University of Chicago
Year: 2022
Subjects: subject: Rousseau
subject: Environmental Political Theory
subject: Nature
subject: Discourse on the Origins of Inequality
subject: Environment
subject: Self-Love
subject: amour-propre

description: This thesis analyzes Rousseau's use of the concept of nature in his Discourse on the Origins of Inequality. It argues that his concept of nature underpins the entirety of the argument in the discourse. It also begins to analyze nature's relationship to self-love and suggests future forms of self-love beyond amour-propre.
Lasing in dark and bright modes of a finite-sized plasmonic lattice
Creators: name: Hakala, T. K.
name: Rekola, H. T.
name: Väkeväinen, A. I.
name: Martikainen, J. -P.
name: Nečada, M.
name: Moilanen, A. J.
name: Törmä, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Lasing at the nanometre scale promises strong light-matter interactions and ultrafast operation. Plasmonic resonances supported by metallic nanoparticles have extremely small mode volumes and high field enhancements, making them an ideal platform for studying nanoscale lasing. At visible frequencies, however, the applicability of plasmon resonances is limited due to strong ohmic and radiative losses. Intriguingly, plasmonic nanoparticle arrays support non-radiative dark modes that offer longer life-times but are inaccessible to far-field radiation. Here, we show lasing both in dark and bright modes of an array of silver nanoparticles combined with optically pumped dye molecules. Linewidths of 0.2 nanometers at visible wavelengths and room temperature are observed. Access to the dark modes is provided by a coherent out-coupling mechanism based on the finite size of the array. The results open a route to utilize all modes of plasmonic lattices, also the high-Q ones, for studies of strong light-matter interactions, condensation and photon fluids.
description: Accepted for publication in Nature Communications
Some generalised models in rigid body dynamics
Creators: name: Jinrong Bao
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: This thesis contains two main chapters.In the first main chapter we consider free rotation of a body whose parts move slowly with respect to each other under the action of internal forces. This problem can be considered as a perturbation of the Euler-Poinsot problem. The dynamics has an approximate conservation law - an adiabatic invariant. This allows us to describe the evolution of rotation in the adiabatic approximation. The evolution leads to an overturn in the rotationof the body: the vector of angular velocity crosses the separatrix of the Euler-Poinsot problem. This crossing leads to a quasi-random scattering in body's dynamics. We obtain formulas for probabilities of capture into different domains in the phase space at separatrix crossings.In the second main chapter we consider the Liouville integrability of left-invariant Hamiltonian system on (the cotangent bundle of) a 3-dimensional Lie group G. In the case of G = SO(3) such systems coincide with the classical equations describing the motion of a free rigid body so that our studies can be naturally regarded as a generalisation of rigid body dynamics to the other Lie groups in dimension 3. We derive the integrability property from the fact that the coadjoint orbits of G are two-dimensional so that the integrability of left-invariant systems is a common property of all such groups regardless their dimension. We also give normal forms for left-invariant Riemannian and sub-Riemannian metrics on 3-dimensional Lie groups focusing on the case of solvable groups, as the cases of SO(3) and SL(2) have been already extensively studied. Our description is explicit and is given inglobal coordinates on G which allows one to easily obtain parametric equations of geodesics in quadratures. Finally, we study generalised systems related to 3-dimensional Lie groups and ?find some series of Liouville integrable cases among them.
Rotational and translational drags of a Janus particle close to a wall and a lipid membrane
Creators: name: Sharma, Vaibhav
name: Fessler, Florent
name: Thalmann, Fabrice
name: Marques, Carlos
name: Stocco, Antonio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Hypothesis: Measuring rotational and translational Brownian motion of single spherical particles reveals dissipations due to the interaction between the particle and the environment. Experiments: In this article, we show experiments where the in-plane translational and two rotational drag coefficients of a single spherical Brownian particle can be measured. These particle drags are functions of the particle size and the particle-wall distance, and of the viscous dissipations at play. We measure drag coefficients for Janus particles close to a solid wall and close to a lipid bilayer membrane. Findings: For a particle close to wall, we show that according to hydrodynamic models, particlewall distance and particle size can be determined. For a particle partially wrapped by lipid membranes, in absence of strong binding interactions, translational and rotational drags are significantly larger than the ones of non-wrapped particles. Beside the effect of the membrane viscosity, we show that dissipations in the deformed membrane cap region strongly contribute to the drag coefficients.
華埠通訊 Vol. 07, Issue 03, August 2003
Creators: name: Chinese Consolidated Benevolent Association (Victoria, B.C.)
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Group identity
valueUri: http://id.worldcat.org/fast/948442
subject: Associations, institutions, etc.
valueUri: http://id.worldcat.org/fast/819166
subject: Community development
valueUri: http://id.worldcat.org/fast/870818
subject: Neighborhoods
valueUri: http://id.worldcat.org/fast/1715963
subject: Immigrants
valueUri: http://id.worldcat.org/fast/967712
subject: Communities
valueUri: http://id.worldcat.org/fast/1430092
subject: Small business
valueUri: http://id.worldcat.org/fast/1121223

description: Start of the newsletter with vol. 1, issue 1 in April of 1993. Published bi-monthly by the Chinese Consolidated Benevolent Association.
To occupy : interior panoramas
Creators: name: Bennett, Alison Irene.
Publisher: name: Monash University
Year: 2022

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.