cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Supplementary materials for Taylor, J. K., Theiler, S., Nedeljkovic, M., & Moulding, R. (accepted). A qualitative analysis of emotion and emotion regulation in hoarding disorder. Journal of Clinical Psychology.
Creators: name: Moulding, Richard
Publisher: name: figshare
Year: 2018
Subjects: subject: Clinical Psychology
subject: 170106 Health, Clinical and Counselling Psychology
subject: FOS: Psychology

description: Epistemological Statement from primary authorQuantitative Results Comparison with non-clinical sampleTable 3 Key Areas of Questioning and Associated PromptsTable 4 Number of the Participants Spontaneously Labelling EmotionsTable 5 Comparisons between Clinical and Non-Clinical Group Means on All Measures
Implications of New JHK Photometry and a Deep Infrared Luminosity Function for the Galactic Bulge
Creators: name: Tiede, Glenn P.
name: Frogel, Jay A.
name: Terndrup, D. M.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present deep near-IR photometry for Galactic bulge stars in Baade's Window, $(l,b) = (1.0°, -3.9°),$ and another minor axis field at $(l,b) = (0^\circ,-6^\circ)$. We combine our data with previously published photometry and construct a luminosity function over the range $5.5 \leq K_0 \leq 16.5$, deeper than any previously published. The slope of this luminosity function and the magnitude of the tip of the first ascent giant branch are consistent with theoretical values derived from isochrones with appropriate age and metallicity. We use the relationship between [Fe/H] and the giant branch slope derived from near-IR observations of metal rich globular clusters by Kuchinski {\it et al.} [AJ, 109, 1131 (1995)] to calculate the mean metallicity for several bulge fields along the minor axis. For Baade's Window we derive $\langle {\rm[Fe/H]}\rangle = -0.28 \pm 0.16$, consistent with the recent estimate of McWilliam \& Rich [ApJS, 91, 749 (1994)], but somewhat lower than previous estimates based on CO and TiO absorption bands and the $JHK$ colors of M giants by Frogel {\it et al.} [ApJ, 353, 494 (1990)]. Between $b = -3°$ and $-12°$ we find a gradient in $\langle {\rm [Fe/H]}\rangle$ of $-0.06 \pm 0.03$ dex/degree or $-0.43 \pm 0.21$ dex/kpc for $R_0 = 8$ kpc, consistent with other independent derivations. We derive a helium abundance for Baade's Window with the $R$ and $R^\prime$ methods and find that $Y = 0.27 \pm 0.03$ implying $ΔY / ΔZ = 3.3 \pm 1.3$. Next, we find that the bolometric corrections for bulge K giants ($V - K \leq 2$) are in excellent agreement with empirical derivations based on observations of globular cluster and local field stars. However, for the redder M giants we
description: Accepted by the Astronomical Journal. 43 pages, uuencoded compressed PostScript, no figures or tables. A complete (text, figs and tables) preprint is also available at ftp://bessel.mps.ohio-state.edu/pub/terndrup/bwphot.tar.Z (compressed tar file with PostScript)
Dynamical control of one- and two-dimensional optical fibre scanning
Creators: name: Mokhtar, Mohd Hadri Hafiz
Publisher: name: Imperial College London
Year: 2015

description: This thesis investigates the dynamical control of one- and two-dimensional optical fibre scanning. One dimensional scanning is performed with a mechanically biaxial polarisation-preserving fibre mounted on a piezoelectric transducer with one of its principal mechanical axes aligned parallel to the excitation direction. The addition of an apertured reflector in front of the imaging lens allows a position sensing mechanism based on intermittent optical feedback to be integrated into the scanner. Over-scanning the lens generates timing pulses interlaced with back-scattered signals from the target. The timing information can be used for closed loop control of the phase and amplitude of vibration. Suitable control algorithms are developed and their convergence and stability is studied. This thesis also investigates the construction of fibres with enhanced mechanically asymmetry and their dynamical properties during two-dimensional imaging based on Lissajous scan patterns. Dip-coating is proposed as a method of forming two-cored waveguide cantilevers from two separate, parallel fibres that are encapsulated in a plastic coating. The frequency ratio between the two orthogonal bending mode resonances can be controlled with number of coatings. An exact image reconstruction algorithm based on Lissajous scanning is proposed. Latency, transient response and steady-state phase errors are all shown to cause dramatic deterioration of the reconstructed image. Solutions are provided by ensuring the correct starting time for data acquisition and introducing a drive phase correction to one of the axes. Two methods of resolution enhancement are demonstrated. The first is based on combining data sets obtained during separate scans carried out with deliberately applied phase offsets. The second operates by combining data sets from separate imaging operations carried out using the two different fibre cores. Finally, this thesis demonstrates potential applications in optogenetics by combining the two operations of imaging and writing, using different light sources that may also have different wavelengths.
Dark Matter as a remnant of SQCD Inflation
Creators: name: Bhattacharya, Subhaditya
name: Saha, Abhijit Kumar
name: Sil, Arunansu
name: Wudka, Jose
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a strongly coupled supersymmetric gauge theory that can accommodate both the inflation (in the form of generalized hybrid inflation) and dark matter (DM). In this set-up, we identify the DM as the Goldstones associated with the breaking of a global symmetry ($SU(4)\times SU(4) \to SU(4)$) after inflation ends. Due to the non-abelian nature of this symmetry, the scenario provides with multiple DMs. We then construct a low energy theory which generates a Higgs portal like coupling of the DMs with Standard Model (SM), thus allowing them to thermally freeze out. While the scales involved in the inflation either have a dynamical origin or related to UV interpretation in terms of a heavy quark field in the supersymmetric QCD (SQCD) sector, the DM masses however are generated from explicit breaking of the chiral symmetry of the SQCD sector. We discuss DM phenomenology for both degenerate and non-degenerate cases, poised with DM-DM interactions and find allowed region of parameter space in terms of relic density and direct search constraints.
description: Version published in JHEP
Metabonomic characterisation of the thoroughbred racehorse
Creators: name: Escalona, Ebony Ellen
Publisher: name: Imperial College London
Year: 2015

description: Mammalian metabolism is known to be influenced by a number of physiological and environmental factors and the metabolic phenotype of an individual includes contributions from diet and the intestinal microbiota. Intestinal wellbeing is paramount for mammalian health and it is increasingly evident that intestinal bacteria have the ability to influence the development of an array of diseases. The horse is a hindgut fermenter- a sophisticated fermentation vat, housing a plethora of gut microbes that liberate energy from high cellulose diets. Investigating the horse will further enhance our knowledge of the symbiotic relationship between the mammalian host and its consortium of gut microbes. Plasma, urine and faecal biological matrices were explored using nuclear magnetic resonance spectroscopy to identify the dominant metabolites present in a healthy racehorse population. Multivariate statistics allowed differences in metabolic profiles to be analysed between horses and within individual horses. 106 metabolites were catalogued, providing a reference tool for ‘normal’ horse NMR data. Urine samples provided the highest percentage of gut microbial derived metabolites. 32 racehorses were subsequently longitudinally sampled to investigate sources of metabolic variation such as yard origin, exercise intensity and behavioural phenotype. Gut microbial co-metabolites; such as hippurate, quinate and p-cresol glucuronide were found to be significantly associated with a number of sources of variation. Equine oral stereotypical behaviour (EOS), abrupt dietary change and high-starch diets are risk factors for colic. Gut microbes can indirectly influence behaviour and it has been postulated that stereotypical abnormalities, such as autism and EOS could be related to changes in gut microbial composition and metabolism. Urinary quinate- a dietary and gut microbial co-metabolite was found to be significantly increased in horses that displayed crib-biting behaviour compared to matched controls. Metabolic profiles from biofluids of horses on a diet trial exploring 3 diets; a traditional high-starch racing diet; a high-fat alternative and a grass only diet highlighted significant differences in gut microbial metabolism. A grass only diet had the highest level of gut microbial co-metabolites such as hippurate in comparison to the other diets and the high-fat alternative was most similar to this ‘natural’ grass metabolome. Conversely, a high-starch diet was associated with higher faecal lactic acid levels, suggesting a shift in pH and therefore microbial environment.
MPEC 2024-G116 : 2017 QX35
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Robust multichannel equalization for blind speech dereverberation
Creators: name: Lim, Sze Chie (Felicia)
Publisher: name: Imperial College London
Year: 2016

description: Acoustic reverberation arises from the reflection of sound waves within an enclosed space. It is generally desirable in music reproduction but can be detrimental to speech-related applications. For the human listener, while the early reflections help to improve speech intelligibility, the late reflections have been shown to impair perceived speech quality. For speech processing technologies such as automatic speech recognizers, reverberation reduces accuracy and performance. Dereverberation is therefore an important research topic with interest driven by increasing availability of communication devices and consumer demand. One approach to dereverberation computes a set of equalizing filters that are used to perform the dereverberation processing, given multichannel inputs and estimates of the acoustic impulse responses (AIRs) between the source signal and microphones. However, estimation errors are inevitable in practice and therefore robust channel equalizers are required. This thesis aims to develop such robust algorithms in a manner that is desirable specifically for speech dereverberation. The framework of channel shortening is used, having been previously shown to give promising results. Subband approaches are also investigated to reduce the computational complexity and achieve finer control of dereverberation in separate frequency bands. A second approach to dereverberation steers the look direction of beamformers towards the source. Reverberant sounds from other directions are treated as noise and accordingly suppressed. The motivation behind beamformer design and channel equalization is similar and in this work, a unified framework termed MINTFormer is proposed. The aim is to combine the robustness of beamformers with the potentially perfect dereverberation ability that can be achieved by channel equalization approaches.
Vultur perenopterus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Accipitriformes
Cathartidae
Vultur
Vultur perenopterus

description: Vultur perenopterus [spec. nov.]
V. remigibus nigris margine exteriore (praeter extimas) canis.
Perenopterus s. Gypa�tos. Aldr. orn. t. 2. c. 10. Raj. av. 8.
Falco montanus aegyptiacus. Hasselqv. act. Stockh. 1751. p. 196.
Vultur, Percnopterus, capite nudo, gula plumosa. Hasselq. itin. 209.
Vultur niger. Raj. av. 9.
Vultur baeticus. Raj. av. 10.
Vultur albus. Raj. av. 10.
Vultur aquilina. Aldr. orn. Alb. av. 2. p. 3. t. 3.
Vultur fulvus, baetico bellonii congener. Raj. av. 10.
Habitat in Aegypto.
Mas totus albus: Remigibus atris margine exteriore canis, exceptis duabus primis unicoloribus: Femina tota fusca: Remigibus quatuor extimis concoloribus. Rostrum atrum cera flava. Hasselqv. Nares perpetuo stillant. Raj.
Purgat Cairi terram a cadaverum foetore, stipendiis allectus. Hasselq.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 87, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
Molecular-based approaches to modelling carbonate-reservoir fluids: Electrolyte phase equilibria, and the description of the fluid-fluid interface
Creators: name: Eriksen, Daniel
Publisher: name: Imperial College London
Year: 2017

description: In this thesis, a new approach to parameterization of the intermolecular potential models of ionic species in electrolyte solutions for the SAFT-VRE Mie theory is presented. Additionally, a predictive approach to the description of the fluid-fluid interface of non-electrolytic, non-associating mixtures is presented. These approaches are intended to support an integrated workflow for the study of the fluid systems relevant for carbon capture and sequestration. The parameterization methodology developed for the intermolecular potential models of ionic species in the SAFT-VRE Mie theory reduces the parameters to be estimated from solution data to a single interaction-energy per solvent-ion pair. This is achieved through the use of literature values for the ion-size parameter, and theoretical estimates for the ion-ion interaction energy. Additionally, the Born diameters of the ion models are taken to be those of Rashin and Honig, and not estimated from data. This approach is applied to the monovalent halides as well as select divalent ions. The resulting models reproduce the solvation energy in H2O to within 5 % error at standard conditions for the monovalent halides. Furthermore, the electrolyte models are demonstrated to provide a fair description of aqueous electrolytes when considering the limited parameterization. The predictive description of the fluid-fluid interface, is achieved by an approach in which the Square Gradient Theory (SGT) and the SAFT-VR Mie EOS are combined. The SGT influence parameter is mapped to the SAFT-VR Mie intermolecular model parameters through the relationship with the direct correlation function. The resulting model is parametrized by matching simulation data for the interfacial tension of λr-6 Mie monomeric fluids. A final evaluation of the model is carried out against non-associating systems of up to 4 species, for which predictive capabilities are demonstrated.
Non-reciprocal magnons in non-centrosymmetric MnSi
Creators: name: Weber, Tobias
name: Waizner, Johannes
name: Tucker, Gregory S.
name: Beddrich, Lukas
name: Skoulatos, Markos
name: Georgii, Robert
name: Bauer, Andreas
name: Pfleiderer, Christian
name: Garst, Markus
name: Böni, Peter
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using two cold-neutron triple-axis spectrometers we have succeeded in fully mapping out the field-dependent evolution of the non-reciprocal magnon dispersion relations in all magnetic phases of MnSi. The non-reciprocal nature of the dispersion manifests itself in a full asymmetry (non-reciprocity) of the dynamical structure factor $S(q, E, μ_0 H_{int})$ with respect to flipping either the direction of the applied magnetic field $μ_0 H_{int}$, the reduced momentum transfer $q$, or the energy transfer $E$.
description: Contribution to the International Conference on Magnetism 2018. 5 pages, 4 figures
Rotating solutions of nonideal transverse Chern-Simons magnetohydrodynamics and the anomalous Hall current
Creators: name: Sadooghi, N.
name: Shokri, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In order to gain deeper insight into the physics of the novel rotating solution of nonideal transverse magnetohydrodynamics (MHD), presented in one of our recent works, we replace the previously considered Maxwell theory with the ${\cal{CP}}$ violating Maxwell-Chern-Simons (MCS) theory. In this way, dissipationless chiral magnetic (CM) and anomalous Hall (AH) currents appear in the MCS equation of motion, that, together with equations of relativistic hydrodynamics, builds the set of constitutive equations of the nonideal transverse Chern-Simons magnetohydrodynamics (CSMHD). We are, in particular, interested in the effect of these currents on the evolution of electromagnetic fields in a uniformly and longitudinally expanding quark-gluon plasma with chirality imbalance. Combining the constitutive equations of CSMHD under these assumptions, we arrive, as expected, at two distinct rotating and nonrotating solutions for electromagnetic fields. The rotation occurs with increasing rapidity and a constant angular velocity $ω_{0}$. Remarkably, the relative angle between the electric and magnetic fields, $δ$, turns out to be given by the coefficient of AH current $κ_{E}$ and the electric conductivity of the medium $σ$, as $δ=\tan^{-1}(κ_{E}/σ)$. Whereas the nonrotating solution implies the AH coefficient to be vanishing, and thus nonrotating electric and magnetic fields to be either parallel or antiparallel, the relative orientation of rotating electric and magnetic fields and the evolution of the CM conductivity $κ_{B}$ are strongly affected by nonvanishing $κ_{E}$. We explore the effect of positive and negative $ω_{0}$ on the evolution of the CM current, and show, in particular, that a rotation of electromagnetic fields with negative $ω_{0}$ implies a sign flip of the CM current in a chiral fluid with nonvanishing AH current.
description: V1: 25 pages, 15 figures, 1 table; V2: Discussions improved. Version accepted for publication in PRD
Optimal manoeuvres and aeroservoelastic co-design of very flexible wings
Creators: name: Maraniello, Salvatore
Publisher: name: Imperial College London
Year: 2016

description: The single shooting method is applied to the optimal control of very flexible aeroelastic wings and the combined structural and control design (co-design) of geometrically nonlinear beam models in vacuum. As large deflections occur, the dynamical properties of these systems can undergo substantial changes. Efficient actuation strategies require characterising, and possibly exploiting, these phenomena. With this purpose, geometrically-nonlinear models are built using composite beams and an unsteady vortex-lattice aerodynamics description. Optimal control is employed to identify actuations time-histories. Numerical solutions are obtained via single-shooting and sequential quadratic programming upon parametrisation of the control input. The approach is also extended to assess the feasibility of an integrated design strategy for active geometrically-nonlinear structures. Numerical studies are first presented for a very flexible actuated pendulum with large rigid-body motion. The impact of local (B-splines) and global (discrete sines) basis functions is investigated for increasing levels of actuation authority, underlining the importance of the time-frequency resolution of the parametrisation on the convergence properties and outcome quality of the process. Locking between control and structural vibrations around specific design points is found, thus highlighting the limitations of a sequential design approach. Simultaneous designing of control law and structure is seen, instead, to explore more efficiently larger portions of the design space. The lateral manoeuvring of very flexible partially-supported wings is then considered. A flight-dynamics model based on elastified stability derivatives is shown to capture the relevant dynamics either under slow actuation or for stiff wings, and it is hence used as a reference. Embedding the full aeroelastic description into the optimisation framework expands the space of achievable manoeuvres, allowing for quick wing response with low structural vibrations or large lateral forces with minimal lift losses.
GENDER DIFFERENTIATION IN LEADERSHIP AND ITS ROLE IN RAISING THE LEVEL OF ORGANIZATIONAL LOYALTY OF EMPLOYEES AT THE MODERN UNIVERSITY FOR BUSINESS AND SCIENCE
Creators: name: Omar Subhi Abdullah
Publisher: name: Zenodo
Year: 2024

description: The study aims to identify the main differences between women’s and men’s leadership with their (Democratic, Autocratic, and Laissez-faire) dimensions and their impact on organizational loyalty with its (Emotional, ethical, and Continuous) dimensions for personnel of Modern University for Business & Science in Lebanon. The study tackles the perception of leadership and its styles, organizational loyalty, and the principal literature of the main study variables. For the study application, the researcher applies the descriptive analytical approach and the questionnaire is approved for collecting the required data of the target population of (30) individuals. The study results conclude a statistically significant effect at the level (0.05) due to the different social types in leadership with all three types throughout personnel organizational loyalty in the university. According to the results achieved throughout the study, the researcher concludes a set of recommendations, the most fundamental of which is the necessary avoidance of the laissez-faire style of leadership that hinders the good functioning of organizational loyalty, in addition to the need to provide scope for personnel to participate in decision making and recognize their capabilities and efficiencies in achieving the organization’s objectives.
A Sharp Event in the Image a Light Curve of the Double Quasar 0957+561 and Prediction of the 1996 Image B Light Curve
Creators: name: Kundic, T.
name: Colley, W. N.
name: Gott, J. R.
name: III
name: Malhotra, S.
name: Pen, U.
name: Rhoads, J. E.
name: Stanek, K. Z.
name: Turner, E. L.
name: Wambsganss, J.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: CCD photometry of the gravitational lens system 0957+561A,B in the g and r bands was obtained on alternate nights, weather permitting, from December 1994 through May 1995 using the Double Imaging Spectrograph (DIS) on the Apache Point Observatory (APO) 3.5-meter telescope. The remote observing and fast instrument change capabilities of this facility allowed accumulation of light curves sampled frequently and consistently. The Honeycutt ensemble photometry algorithm was applied to the data set and yielded typical relative photometric errors of approximately 0.01 magnitudes. Image A exhibited a sharp drop of about 0.1 magnitudes in late December 1994; no other strong features were recorded in either image. This event displays none of the expected generic features of a microlensing-induced flux variation and is likely to be intrinsic to the quasar; if so, it should also be seen in the B image with the lensing differential time delay. We give the expected 1996 image B light curves based on two values of the time delay and brightness ratio which have been proposed and debated in the literature. Continued monitoring of the system in the first half of 1996 should easily detect the image B event and thus resolve the time-delay controversy.
description: submitted to ApJ Letters, 15 pages, uuencoded PostScript with figures included; also available through WWW at http://www.astro.princeton.edu/~library/prep.html
On the Baker-Campbell-Hausdorff Theorem: non-convergence and prolongation issues
Creators: name: Biagi, Stefano
name: Bonfiglioli, Andrea
name: Matone, Marco
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Rings and Algebras (math.RA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary: 15A16, 15B99, 40A30. Secondary: 34A25

description: We investigate some topics related to the celebrated Baker-Campbell-Hausdorff Theorem: a non-convergence result and prolongation issues. Given a Banach algebra $\mathcal{A}$ with identity $I$, and given $X,Y\in \mathcal{A}$, we study the relationship of different issues: the convergence of the BCH series $\sum_n Z_n(X,Y)$, the existence of a logarithm of $e^Xe^Y$, and the convergence of the Mercator-type series $\sum_n {(-1)^{n+1}}(e^Xe^Y-I)^n/n$ which provides a selected logarithm of $e^Xe^Y$. We fix general results and, by suitable matrix counterexamples, we show that various pathologies can occur, among which we provide a non-convergence result for the BCH series. This problem is related to some recent results, of interest in physics, on closed formulas for the BCH series: while the sum of the BCH series presents several non-convergence issues, these closed formulas can provide a prolongation for the BCH series when it is not convergent. On the other hand, we show by suitable counterexamples that an analytic prolongation of the BCH series can be singular even if the BCH series itself is convergent.
description: 18pp Additional results and comments added
Communities count: exploring the role of participatory monitoring in conservation and development initiatives
Creators: name: Earle, Samantha
Publisher: name: Imperial College London
Year: 2016

description: Working at the nexus of conservation and development is challenging. Participatory environmental monitoring (PEM) is, on paper, a win-win for conservation and development, but there has been limited evaluation of its effectiveness in improving the lives of local people while also supporting improved management of species of conservation concern. In this thesis, I use a multidisciplinary approach to gain a better understanding of the role and implications of PEM for conservation and development, using a project in Madagascar as a case study. I conducted a systematic literature review and online survey to describe approaches to PEM. I found that PEM schemes are variable, widespread and growing in number, but local participation is still limited and opportunities exist to improve use of modern technologies. Using occupancy modelling, I found that the case study lacks power to detect trends at the landscape level, but could provide useful presence-absence information on species and threats at the village level. However, the biggest issue highlighted by this research relates to inadequate data management that prevents most data being available for analyses and ‘learning-by-doing’ feedback loops. Using semi-structured interviews, I gathered local peoples’ perspectives of the project operating in their village and found that the project was widely known within the villages, but that not everyone benefits. Based on these findings and with my own first-hand experience of the case study project, I designed a tool for practitioners to use during the design and implementation of a PEM scheme. This thesis highlights the need to carefully consider all aspects of a PEM project, from the ecological knowledge gleaned from the data to the social impact across all sectors of the community. In doing so, this research demonstrates that PEM is challenging, complex and by no means a silver bullet for meeting dual conservation and development goals.
Smart Grid Monitoring Using Power Line Modems: Effect of Anomalies on Signal Propagation
Creators: name: Passerini, Federico
name: Tonello, Andrea M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The aim of the present work is to provide the theoretical fundamentals needed to monitor power grids using high frequency sensors. In our context, network monitoring refers to the harvesting of different kinds of information: topology of the grid, load changes, presence of faults and cable degradation. We rely on transmission line theory to carry out a thorough analysis of how high frequency signals, such those produced by power line modems, propagate through multi-conductor power networks. We also consider the presence of electrical anomalies on the network and analyze how they affect the signal propagation. In this context, we propose two models that rely on reflectometric and end-to-end measurements to extrapolate information about possible anomalies. A thorough discussion is carried out to explain the properties of each model and measurement method, in order to enable the development of appropriate anomaly detection and location algorithms.
description: A version of this paper has been submitted to an IEEE Journal
Gaussian process regression for forest attribute estimation from airborne laser scanning data
Creators: name: Varvia, Petri
name: Lähivaara, Timo
name: Maltamo, Matti
name: Packalen, Petteri
name: Seppänen, Aku
Publisher: name: arXiv
Year: 2018
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: While the analysis of airborne laser scanning (ALS) data often provides reliable estimates for certain forest stand attributes -- such as total volume or basal area -- there is still room for improvement, especially in estimating species-specific attributes. Moreover, while information on the estimate uncertainty would be useful in various economic and environmental analyses on forests, a computationally feasible framework for uncertainty quantifying in ALS is still missing. In this article, the species-specific stand attribute estimation and uncertainty quantification (UQ) is approached using Gaussian process regression (GPR), which is a nonlinear and nonparametric machine learning method. Multiple species-specific stand attributes are estimated simultaneously: tree height, stem diameter, stem number, basal area, and stem volume. The cross-validation results show that GPR yields on average an improvement of 4.6\% in estimate RMSE over a state-of-the-art k-nearest neighbors (kNN) implementation, negligible bias and well performing UQ (credible intervals), while being computationally fast. The performance advantage over kNN and the feasibility of credible intervals persists even when smaller training sets are used.
description: Accepted for publication in IEEE Transactions on Geoscience and Remote Sensing
Monitoring continuous spectrum observables: the strong measurement limit
Creators: name: Bauer, M.
name: Bernard, D.
name: Jin, T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We revisit aspects of monitoring observables with continuous spectrum in a quantum system subject to dissipative (Lindbladian) or conservative (Hamiltonian) evolutions. After recalling some of the salient features of the case of pure monitoring, we deal with the case when monitoring is in competition with a Lindbladian evolution. We show that the strong measurement limit leads to a diffusion on the spectrum of the observable. For the case with competition between observation and Hamiltonian dynamics, we exhibit a scaling limit in which the crossover between the classical regime and a diffusive regime can be analyzed in details.
description: 22 pages, 2 figures, Submission to SciPost
Malaysian Diabetes and Research on Lifestyle Intervention Group (MY DARLING) Study: The impact of diabetes education on knowledge, metabolic control, self-care skills and self-efficacy in Type 2 Diabetes patients in ambulatory settings.
Creators: name: BADARIAH AHMAD
Publisher: name: Monash University
Year: 2019
Subjects: Medicine

description: Type 2 Diabetes is an epidemic which impacts society and poses an escalating burden of disease worldwide. An important aspect to address in the face of this epidemic is diabetes education and self-care management, the cornerstone of diabetes management. MY DEMO is an education programme which teaches patients basic information about their condition and ways to optimize their control by performing self-monitoring blood glucose. The programme has been successful in improving patients’ knowledge of diabetes, confidence and compliance in self-care behaviour and importantly has improved patients’ diabetes control. Diabetes education should be an ongoing for Type 2 diabetes patients.
Chemical Enrichment at High Redshifts
Creators: name: Das, Snigdha
name: Khare, Pushpa
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have tried to understand the recent observations related to metallicity in Ly $α$ forest clouds in the framework of the two component model suggested by Chiba & Nath (1997). We find that even if the mini-halos were chemically enriched by an earlier generation of stars, to have [C/H] $\simeq$ -2.5, the number of C IV lines with column density $>10^{12} cm^{-2}$, contributed by the mini-halos, at the redshift of 3, would be only about 10% of the total number of lines, for a chemical enrichment rate of $(1+z)^{-3}$ in the galaxies. Recently reported absence of heavy element lines associated with most of the Ly $α$ lines with H I column density between $10^{13.5} cm^{-2}$ and $10^{14} cm^{-2}$ by Lu et al (1998), if correct, gives an upper limit on [C/H]=-3.7, not only in the mini-halos, but also in the outer parts of galactic halos. This is consistent with the results of numerical simulations, according to which, the chemical elements associated with the Ly $α$ clouds are formed in situ in clouds, rather than in an earlier generation of stars. However, the mean value of $7 \times 10^{-3}$ for the column density ratio of C IV and H I, determined by Cowie and Songaila (1998) for low Lyman alpha optical depths, implies an abundance of [C/H] =-2.5 in mini-halos as well as in most of the region in galactic halos, presumably enriched by an earlier generation of stars. The redshift and column density distribution of C IV has been shown to be in reasonable agreement with the observations.
description: 23 pages, 6 figures, To appear in Astrophysical Journal
Effects of scarring on quantum chaos in disordered quantum wells
Creators: name: Keski-Rahkonen, J.
name: Luukko, P. J. J.
name: Åberg, S.
name: Räsänen, E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The suppression of chaos in quantum reality is evident in quantum scars, i.e., in enhanced probability densities along classical periodic orbits, providing opportunities in controlling quantum transport in nanoscale quantum systems. Here, we focus on the energy level statistics of perturbed two-dimensional quantum systems exhibiting recently discovered, strong perturbation-induced quantum scarring. In particular, we study the effect of local perturbations and an external magnetic field on the eigenvalue statistics and scarring. Energy spectra are analyzed to investigate the chaoticity of the quantum system in the context of the Bohigas-Giannoni-Schmidt conjecture. We demonstrate that perturbation-induced scarring is strong in classically fully chaotic systems that, however, represent mixed eigenvalue statistics in the quantum case.
description: 9 pages, 5 figures
Numerical modelling of the continental break-up of the southern South Atlantic
Creators: name: Taposeea, Chandra Sajjini Amber
Publisher: name: Imperial College London
Year: 2017

description: The southern South Atlantic has often been considered a classic example of continental break-up in the presence of a starting mantle plume, evidenced from the Paraná-Etendeka continental flood basalts, the Rio Grande Rise & Walvis Ridge, and wide-spread presence of seaward dipping reflectors & high-velocity lower-crustal bodies along the conjugate margins. However, inconsistencies remain, including a stark contrast of non-volcanic and volcanic passive margins north and south of the aseismic ridges, and evidence from seaward dipping reflector distributions suggesting segmentation influenced magmatism. Within this project, different methods for the formation of the volcanic passive margins in the southern South Atlantic have been explored. To test the main influence on magmatism during break-up, observational constraints of post and syn-rift magmatism originate from 38 wide-angle and multichannel seismic profiles. These measurements show that at 450km south of the Walvis Ridge, oceanic crust has a thickness of 11.7 km, thinning to 6.1km at a distance of 2300km along-strike. Overall, oceanic crustal thickness decreases linearly along-strike with little indication of segmentation. Active mantle upwelling was also tested using the relationship between melt volumes and seismic velocity from syn-rift magmatism, with little evidence for this process. Using a numerical model of continental rifting capable of producing melt thickness and major element oxide compositions through time, the observational constraints from post and syn-rift magmatism required a hot layer present decreasing in temperature relative to the asthenosphere from 250°C in the north to 50°C at a distance of 2300km south along-strike. By reconstructing the lithosphere thickness at break-up, it was suggested that the sublithospheric topography had a strong influence on magmatism throughout the region, including on the asymmetry in magmatism along the margins. Overall however, modelling results suggest that temperature, and in turn possibly a plume, was the primary control of magmatism during the opening of the southern South Atlantic.
Falco Linnaeus, 1758, gen. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Falconiformes
Falconidae
Falco

description: Falco [gen. nov.]
Rostrum aduncum, basi cera instructum.
Caput pennis arcte tectum.
Lingua bifida.
* Cera lutea.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 88, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206
title: ADCO, Grènetier de Cîteaux : comptes (1497-1504) (11 H 1172), f. 00576
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1497-1504), Archives départementales de la Côte-d'Or, (11 H 1172), f. 00576, in Projet CBMA - Corpus Burgundiae Medii Aevi \[Ressource en ligne\], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Advances in chiral lasers and transformation theory
Creators: name: Topf, Rene
Publisher: name: Imperial College London
Year: 2016

description: The first part of the presented thesis begins by developing the lasing mode theory of a structurally chiral laser and highlighting the possibilities for a structurally chiral laser to lase both left and right circularly polarised light, as well as within the photonic bandgap. The discoveries are utilised in order to develop the lasing mode theory of a chiral distributed Bragg reflector laser, which consists of structurally chiral mirrors and a uniform lasing cavity, as well as of a hybrid chiral laser, which consists of structurally chiral mirrors with a contrahanded structurally chiral lasing cavity. Applications towards more efficient 3D projectors as well as 3D displays are discussed. The second part of the thesis develops the theory of transformation optics from first principles using differential geometry. The rigorously constructed structure is manipulated in order to examine the effects of a transformation on the refractive index. The analysis reveals the existence of a refractive index ellipsoid, which encodes the complete transformation and can be used to intuitively grasp the effects of any given transformation on light rays travelling inside the transformation optics device. The refractive index ellipse is calculated for the well known cylindrical cloak as well as for a new type of twist deformation, providing insights into the inner workings of these devices.
title: 02_1617
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Modelling the permeability of nitrile rubber
Creators: name: Khawaja, Mohammed
Publisher: name: Imperial College London
Year: 2016

description: Elastomer seals are widely used in the oil and gas industry and form small but crucial parts of critical mechanical and electronic components. Ideally, to prevent damage to such components, the seals should act as impermeable barriers. However, under the high pressures and temperatures found downhole, they are liable to suffer two main types of permeation-driven failure, either by gases permeating through the entire seal, or by dissolved gases causing swelling and rupture, in a process known as explosive decompression. Neither failure mode is particularly well understood, and experimental approaches have encountered difficulties in replicating service conditions and providing insight into the mechanisms responsible. In this work, I use a molecular-simulation-based approach to investigate the drivers of and trends in the permeation of gases as a function of the underlying polymer chemistry and the environmental conditions. I focus on two elastomers in particular that are widely used in the oil and gas industry due to their resistance to hydrocarbons and to thermal degradation: nitrile butadiene rubber, or NBR, which is a statistical copolymer of acrylonitrile and butadiene, and hydrogenated-NBR, or HNBR, which is a polymer derived from the cross-linking and saturation of NBR. For NBR, I first develop a fully atomistic model using the OPLS-AA force-field. I demonstrate that solubility increases with acrylonitrile content, the cyano group plays a crucial role in the enhanced solubility of polar gases, and that the effects of pressure and temperature are heavily gas-dependent. In contrast, the diffusivity is found to decrease with increasing acrylonitrile content. For HNBR, I show that, while the diffusivity decreases with increasing cross-link fraction, counter-intuitively, the solubility increases. The work in this thesis provides a set of molecular-level design principles for the future development of corrosion- and decompression-resistant elastomers.
Falco melanaetus Linnaeus, 1758, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1758
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Falconiformes
Falconidae
Falco
Falco melanaetus

description: Falco melanaetus [spec. nov.]
F. cera lutea, pedibus semilanatis, corpore ferrugineonigricante striis flavis.
Melanaetus s. Aquila valeria. Raj. av. 7. n. 4. Will. orn. 30. t. 2. Alb. av. 2. p. 2. t. 2.
Habitat in Europa.
description: Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 88, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/3922206