cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
FPGA Based Real-Time Image Manipulation and Advanced Data Acquisition For 2D-XRAY Detectors
Creators: name: Mansour, Wassim
name: Biv, Rattana
name: Ponchut, Cyril
name: Ponsard, Raphael
name: Janvier, Nicolas
name: Fajardo, Pablo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Scientific experiments rely on some type of measurements that provides the required data to extract aimed information or conclusions. Data production and analysis are therefore essential components at the heart of any scientific experimental application. Traditionally, efforts on detector development for photon sources have focused on the properties and performance of the detection front-ends. In many cases, the data acquisition chain as well as data processing, are treated as a complementary component of the detector system and added at a late stage of the project. In most of the cases, data processing tasks are entrusted to CPUs; achieving thus the minimum bandwidth requirements and kept hardware relatively simple in term of functionalities. This also minimizes design effort, complexity and implementation cost. This approach is changing in the last years as it does not fit new high-performance detectors; FPGA and GPUs are now used to perform complex image manipulation tasks such as image reconstruction, image rotation, accumulation, filtering, data analysis and many others. This frees up CPUs for simpler tasks. The objective of this paper is to present both the implementation of real time FPGA-based image manipulation techniques, as well as, the performance of the ESRF data acquisition platform called RASHPA, into the back-end board of the SMARTPIX photon-counting detector developed at the ESRF.
The concept and experience of caregiving for adult daughters and sons
Creators: name: Watt, David Richard
Publisher: name: University of British Columbia
Year: 2009

description: Although there exists a sizable literature addressing familial caregiving of the impaired elderly, the expanding empirical literature has not been matched by a corresponding increase in theoretical discussion and development in this area. Of related and particular concern is the absence of any clear and consistent concepts of "caregiving" and "caregivers." The literature has tended to focus on specific aspects of caregiving (e.g., caregiver burden) and on specific caregivers (e.g., adult daughters) as portraying typical caregiving experiences. Research has demonstrated, however, that caregiving involves a diversity of experiences and that a variety of individuals operate within the role of caregiver. The purpose of this study was to investigate the concept and subjective experience of caregiving from the perspective of caregivers, in addition to exploring the potentially different ways in which women and men experience caregiving. The approach taken in the study was based upon the researcher's interpretive framework, the Caregiving Corridor, which facilitated the exploration of the concept and experience of caregiving from the perspective of parameters (beginning, boundaries, development, end) and processes (motivation, expectations, activities, abilities, impact) involved in caregiving. The sample consisted of 10 adult daughters and 6 adults sons who were acting as the primary caregiver (providing the majority of informal/unpaid assistance) for their parents. Participants were recruited through community support programs and an advertisement in a local newspaper. Participants took part in one recorded interview which took approximately 30 minutes and was subsequently transcribed and analyzed using a primarily qualitative approach to data analysis involving thematic content analysis to identify the key themes and concepts that emerged from participants' responses. Information about each of the dimensions of the Caregiving Corridor is reported, and serves to illuminate the concept and experience of caregiving. There were no substantial differences in the experiences of female and male participants in the study. Evidence was found to support a greater focus on the dynamic, developmental aspect of caregiving, as well as the emotional and positive dimensions of familial caregiving.
Towards a general quasi-linear approach for the instabilities of bi-Kappa plasmas. Whistler instability
Creators: name: Moya, Pablo S.
name: Lazar, Marian
name: Poedts, Stefaan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Kappa distributions are ubiquitous in space and astrophysical poorly collisional plasmas, such as the solar wind, suggesting that microscopic and macroscopic properties of these non-equilibrium plasmas are highly conditioned by the wave-particle interactions. The present work addresses the evolution of anisotropic bi-Kappa (or bi-$κ$-)distributions of electrons triggering instabilities of electromagnetic electron-cyclotron (or whistler) modes. The new quasi-linear approach proposed here includes time variations of the $κ$ parameter during the relaxation of temperature anisotropy. Numerical results show that $κ$ may increase for short interval of times at the beginning, but then decreases towards a value lower than the initial one, while the plasma beta and temperature anisotropy indicate a systematic relaxation. Our results suggest that the electromagnetic turbulence plays an important role on the suprathermalization of the plasma, ultimately lowering the parameter $κ$. Even though the variation of $κ$ is in general negative ($Δκ<0$) this variation seems to depend of the initial conditions of anisotropic electrons, which can vary very much in the inner heliosphere.
description: 18 pages, 6 figures, accepted for publication at Plasma Physics and Controlled Fusion
The Minnesota Poll: October 2019
Creators: name: Star Tribune
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: 2020 presidential election (4); vote for or against Donald Trump (4); Joe Biden (1); Elizabeth Warren (1); Bernie Sanders (1); Amy Klobuchar (1); President Donald Trump's job approval (1); impeachment of President Donald Trump (2); trustworthiness of Donald Trump (2); gun control (3).
Metrichia macrophallata Flint 1991
Creators: name: Armitage, Brian J.
name: Harris, Steven C.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Metrichia
Metrichia macrophallata

description: Metrichia macrophallata Flint, 1991
 Material examined. Panana, Coclé Province, Cuenca 105, Omar Torrijos Herrera National Park, Quebrada Corazones, PSPSCB-PNGDOTH-C097-2017-001, 8.67760°E and 80.60007°W, 728 m, UV light trap, A. Cornejo, T. Ríos, E. Álvarez, and E. Pérez, 24 March 2017, 3 males.
 Distribution. Costa Rica, Ecuador, Panama.
description: Published as part of Armitage, Brian J. & Harris, Steven C., 2020, The Trichoptera of Panama XIV. New species of microcaddisflies (Trichoptera: Hydroptilidae) from Omar Torrijos Herrera National Park, pp. 1-19 in Insecta Mundi 763 on page 8, DOI: 10.5281/zenodo.3779124
Exact Elliptic Compactons in Generalized Korteweg-DeVries Equations
Creators: name: Cooper, Fred
name: Khare, Avinash
name: Saxena, Avadh
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We derive a general theorem relating the energy, momentum and velocity of any solitary wave solution of the generalized KdV equation which enables us to relate the amplitude, width, and momentum to the velocity of these solutions. We obtain the general condition for linear and Lyapunov stability. We then obtain a two parameter family of exact solutions to these equations which include elliptic and hyper-elliptic compacton solutions. For this general family we explicitly verify both the theorem and the stability criteria.
description: Four pages, no figures
Modelling the dynamical evolution of the Bootes dwarf spheroidal galaxy
Creators: name: Fellhauer, M.
name: Wilkinson, M. I.
name: Evans, N. W.
name: Belokurov, V.
name: Irwin, M. J.
name: Gilmore, G.
name: Zucker, D. B.
name: Kleyna, J. T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate a wide range of possible evolutionary histories for the recently discovered Bootes dwarf spheroidal galaxy, a Milky Way satellite. By means of N-body simulations we follow the evolution of possible progenitor galaxies of Bootes for a variety of orbits in the gravitational potential of the Milky Way. The progenitors considered cover the range from dark-matter-free star clusters to massive, dark-matter dominated outcomes of cosmological simulations. For each type of progenitor and orbit we compare the observable properties of the remnant after 10 Gyr with those of Bootes observed today. Our study suggests that the progenitor of Bootes must have been, and remains now, dark matter dominated. In general our models are unable to reproduce the observed high velocity dispersion in Bootes without dark matter. Our models do not support time-dependent tidal effects as a mechanism able to inflate significantly the internal velocity dispersion. As none of our initially spherical models is able to reproduce the elongation of Bootes, our results suggest that the progenitor of Bootes may have had some intrinsic flattening. Although the focus of the present paper is the Bootes dwarf spheroidal, these models may be of general relevance to understanding the structure, stability and dark matter content of all dwarf spheroidal galaxies.
description: 10 pages, 7 figures, accepted by MNRAS
Minimal configurations for Frenkel-Kontorova model on a quasicrystal
Creators: name: Gambaudo, J-M.
name: Guiraud, P.
name: Petite, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37N20, 52C23, 82B20

description: In this paper, we consider the Frenkel-Kontorova model of a one dimensional chain of atoms submitted to a potential. This potential splits into an interaction potential and a potential induced by an underlying substrate which is a quasicrystal. Under standard hypotheses, we show that every minimal configuration has a rotation number, that the rotation number varies continuously with the minimal configuration, and that every non negative real number is the rotation number of a minimal configuration. This generalizes well known results obtained by S. Aubry and P.Y. le Daeron in the case of a crystalline substrate.
description: 25 pages, 8 figures
Avoided Quantum Criticality near Optimally Doped High Temperature Superconductors
Creators: name: Haule, Kristjan
name: Kotliar, Gabriel
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the crossover from the underdoped to the overdoped regime in the t-J model.The underdoped regime is dominated by the superexchange interaction, locking the spins into singlets which weakly perturbe coherent charge carriers. In the overdoped, large carrier concentration regime, the Kondo effect dominates resulting in spin-charge composite quasiparticles which are also coherent. Separating these two Fermi liquid regimes, there is a critical doping where superexchange and Kondo interaction balance each other, bringing the system close to a local quantum critical point near the point of maximal superconducting transition temperature. At this point, particle hole symmetry is dynamically restored and physical quantities such as the optical conductivity, exhibit power law behaviour at intermediate frequencies as observed experimentally. Quantum criticality is avoided by the onset of superconductivity.
description: 4 pages, 4 figures
Metrichia thurmani Harris and Armitage 2019
Creators: name: Armitage, Brian J.
name: Harris, Steven C.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Metrichia
Metrichia thurmani

description: Metrichia thurmani Harris and Armitage, 2019
 Material examined. Panama, Coclé Province, Cuenca 103, Omar Torrijos Herrera National Park, Quebrada Corazones, PSPSCB-PNGDOTH-C103-2017-001, UV light trap, 8.6776°N and 80.6001°W, 728 m, 24 March 2017, A. Cornejo, T. Ríos, E. Álvarez, and E. Pérez, 1 male; ibid., afluente Quebrada Corazones, Malaise trap, 22-26 March 2017, 1 male.
description: Published as part of Armitage, Brian J. & Harris, Steven C., 2020, The Trichoptera of Panama XIV. New species of microcaddisflies (Trichoptera: Hydroptilidae) from Omar Torrijos Herrera National Park, pp. 1-19 in Insecta Mundi 763 on page 8, DOI: 10.5281/zenodo.3779124
Diffuse Radio Sources in Groups and Poor Clusters
Creators: name: Delain, Kisha M.
name: Rudnick, Lawrence
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have discovered new diffuse radio sources likely associated with groups of galaxies at low redshift (0.01-0.04) and without apparent AGN by using the WENSS and WISH catalogs to perform an unbiased survey. These sources resemble the radio halos, mini-halos, and 'relics' of rich clusters, which are thought to be powered by shocks and turbulence from infall into their deep potential wells. Our detection of similar sources within the shallow potential wells of groups of galaxies challenges this model. Their radio luminosities are approximately two orders of magnitude higher than expected from the extrapolation of the apparent rich cluster radio/X-ray luminosity relation. Even if these sources are misidentified distant clusters, they would lie above the apparent rich cluster radio/X-ray luminosity relation in the literature, suggesting that detections of radio halos and relics thus far may be more biased than previously thought.
description: Conference proceedings, "Origins and Evolution of Cosmic Magnetism". 2 pages, 2 figures
Globally integrated measurements of the Earth's visible spectral albedo
Creators: name: Montanes-Rodriguez, P.
name: Palle, E.
name: Goode, P. R.
name: Hickey, J.
name: Koonin, S. E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report spectroscopic observations of the earthshine reflected from the Moon. By applying our photometry methodology to spectroscopy, we were able to precisely determine the Earth's reflectance, and its variation as a function of wavelength through a single night as the Earth rotates. These data imply that planned regular monitoring of earthshine spectra will yield valuable, new inputs for climate models, which would be complementary to those from the more standard broadband measurements of satellite platforms. The mean spectroscopic albedo over the visible is consistent with simultaneous broadband photometric measurements. We found no evidence for an appreciable "red" or "vegetation edge" in the Earth's spectral albedo, and no evidence for changes in this spectral region (700 -740 nm) over the 40 degrees of Earth's rotation covered by our observations.
description: 20 pages, 7 postscript figures. Accepted for publication in ApJ
Goudzwaard, Bob, de Lange, Harry M.: Weder Armut noch Überfluß
Creators: name: Grohs, Gerhard
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 40 Nr. 1 (1991): Ökumenische Rundschau, Band 40, Heft 1
Analytical and numerical modeling of electrostatically driven micromembranes
Creators: name: Kidchob, Christopher
Publisher: name: No Publisher Supplied
Year: 2021

description: In the field of BioMEMS, pneumatic actuation has been a common feature in the production of “Lab-On-A-Chip” (LOC) devices due to their cheap production costs and well-established fabrication protocols, however, are limited by a lack of precise control and component sizes. Electrostatic actuators in turn offer a low power consumption and highly controllable alternative for LOC devices, however, the protocol to create these components is not as well established. Computational modeling can act as a powerful design tool allowing us to explore a large range of design permutations and allow us to analyze the results. The device that will be modeled is a novel Parylene-C and gold composite micromembrane that is planned to be utilized as an all-in-one electrostatic actuator for mixing, fluid control, and cell manipulation. Comsol Multiphysics is the finite element modeling program that was utilized to model the geometry of the device and simulate the physics environment. We recommend developing an adaptive mesh due to the varying size scale between the membrane length and thickness. We used theoretical equations under uniform load to initially validate our computational model before moving towards an analytical model derived for nonuniform loads to better match the electrostatic force. Data from the fabricated device was used for further validation and we were able to develop a correctional factor based on eigenfrequency comparisons between the model and the device to better improve our results.
Studies on structural stability of chicken’s egg yolk immunoglobulin (IgY):
Creators: name: Chansarkar, Namrata Labhe
Publisher: name: University of British Columbia
Year: 2009

description: Immunoglobulins play a critical role in therapy, diagnostic assays and purification of important compounds. Hen egg yolk immunoglobulins, or IgY, have been studied intensively by researchers. Many techniques for isolation of IgY have been established. IgY has many advantages over the mammalian antibodies. It does not bind with mammalian complements or rheumatoid factor. Low cost and convenient production make it an attractive antibody for human use. To obtain specific antibodies, elution protocols often expose IgY to harsh conditions such as low pH, which may lead to denaturation. This research aims to study the effects of acidic pH, temperature, the denaturant guanidine-hydrochloride on IgY and the reversibility of those effects. Structural properties were studied by ultraviolet spectroscopy, intrinsic fluorescence, extrinsic fluorescence with hydrophobic probes, and enzyme linked immunosorbent assay. IgY was found to be sensitive to acidic pH (2.8) with irreversible changes when treated at 37°C. IgY denatured with > 3 M guanidine hydrochloride concentration showed a significant drop in antigen binding activity determined by enzyme linked immunosorbent assay suggesting that the changes resulting in inactivation are only partly reversible. These results should be considered in establishing processes for the isolation or utilization of IgY antibodies. For practical use of IgY in food or therapeutic formulations it is important that it is stable to processing conditions. Stability of IgY to freezing and freeze drying was investigated by monitoring its solubility, intrinsic fluorescence, extrinsic fluorescence and enzyme linked immunosorbent assay activity. IgY was found to be stable to freezing at -8°C but showed a significant drop in solubility and enzyme linked immunosorbent assay activity after freeze drying. Immunoaffinity chromatography has been used in the past to isolate IgY and other antigens. Structural conformation of eluted IgY was investigated in the present study. Surface hydrophobicity of IgY antibodies eluted at pH 2.8 was significantly higher than the crude IgY isolate before affinity purification. Trehalose in the eluting medium had a protective effect on IgY as it decreased surface hydrophobicity of pH eluted IgY.
Do we really know how to derive the basic PNe parameters?
Creators: name: Goncalves, Denise R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: How well do we know the physical/chemical properties of PNe? 1D (CLOUDY) and 3D (MOCASSIN) photoionisation codes are used in this contribution to model the PNe K 4-47 and NGC 7009 as an attempt to question whether or not the high Te (higher than 21,000K) of the K 4-47's core and the N overabundance of the outer knots in NGC 7009 are real. These are very basic parameters, obtained for Galactic PNe, e.g. nearby objects, even though with large uncertainties. Based on the comparison of the modelling with, mainly, optical images and long-slit spectroscopic data, it is suggested here that K 4-47 high Te can be explained if its core is composed of a very dense and small inner region --that matches the radio measurements-- and a lower density outer core --matching the optical observations. This approach can account for the strong auroral emission lines [OIII]4363A and [NII]5755A observed, and so for the high temperatures. This teaches us that the assumption of a homogeneous distribution of the gas is completely wrong for the core of such PN. In the case of NGC 7009 a simple 3D model that reproduces the observed geometry of this nebula is constructed. The aim of this modelling was to explore the possibility that the enhanced [NII] emission observed in the outer knots may be due to ionisation effects instead to a local N overabundance. Here it is discussed the model that can best reproduce the observations employing a homogeneous set of abundances throughout the nebula, not only for nitrogen but also for all the other elements considered.
description: 4 pages; talk presented in the international conference Planetary Nebulae as Astronomical Tools; June 28 - July 02, 2005; Gdansk, Poland; Eds: R. Szczerba, G. Stasinska, and S. K. Gorny; AIP Conference Proceedings
SUIHTER: A new mathematical model for COVID-19. Application to the analysis of the second epidemic outbreak in Italy
Creators: name: Parolini, Nicola
name: Dede', Luca
name: Antonietti, Paola F.
name: Ardenghi, Giovanni
name: Manzoni, Andrea
name: Miglio, Edie
name: Pugliese, Andrea
name: Verani, Marco
name: Quarteroni, Alfio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Numerical Analysis (math.NA)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: The COVID-19 epidemic is the last of a long list of pandemics that have affected humankind in the last century. In this paper, we propose a novel mathematical epidemiological model named SUIHTER from the names of the seven compartments that it comprises: susceptible uninfected individuals (S), undetected (both asymptomatic and symptomatic) infected (U), isolated (I), hospitalized (H), threatened (T), extinct (E), and recovered (R). A suitable parameter calibration that is based on the combined use of least squares method and Markov Chain Monte Carlo (MCMC) method is proposed with the aim of reproducing the past history of the epidemic in Italy, surfaced in late February and still ongoing to date, and of validating SUIHTER in terms of its predicting capabilities. A distinctive feature of the new model is that it allows a one-to-one calibration strategy between the model compartments and the data that are daily made available from the Italian Civil Protection. The new model is then applied to the analysis of the Italian epidemic with emphasis on the second outbreak emerged in Fall 2020. In particular, we show that the epidemiological model SUIHTER can be suitably used in a predictive manner to perform scenario analysis at national level.
description: 25 pages
TARJIMADAGI MORFOLOGIK MUAMMOLAR
Creators: name: Muhammadjonova Dilnura shuhrat qizi Termiz davlat universiteti Tarjima nazariyasi va amaliyoti yo'nalishi talabasi  Ramazonov Shoxrux Nusratullo o'g'li Termiz davlat universiteti o'qituvchisi
Publisher: name: Zenodo
Year: 2024

description: Mazkur maqolada tarjima qilish jarayonida uchraydigan morfologik muammolar tahlil qilinadi. Ingliz tilidan o’zbek tiliga yohud, o’zbek tilidan ingliz tiliga tarjima qilayotganda ko’plab o’zgarishlarga uchraydi. Tarjima g’aliz bo’lib qolmasligi uchun tarjima usullaridan foydalanib tarjima qilinadi. Maqola uchun manba sifatida ko’plab grammatikaga oid kitoblar va internet saytlaridan foydalanildi.

         Kalit so’zlar: morfologiya, transformatsiyalar, tarjima, leksikologiya, tarjima usullari, ingliz tili, o’zbek tili, tarjima turlari, so’zma-so’z tarjima.
Ochrotrichia birdae Harris and Armitage 2019
Creators: name: Armitage, Brian J.
name: Harris, Steven C.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Hydroptilidae
Ochrotrichia
Ochrotrichia birdae

description: Ochrotrichia birdae Harris and Armitage, 2019
 Material examined. Panama, Coclé Province, Cuenca 105, Omar Torrijos Herrera National Park, afluente Quebrada Corazones, PSPSCB-PNGDOTH-C103-2017-002, Malaise trap, 8.6776°N and 80.6001°W, 728 m, 22–26 March 2017, A. Cornejo, T. Ríos, E. Álvarez, and E. Pérez, 1 male.
description: Published as part of Armitage, Brian J. & Harris, Steven C., 2020, The Trichoptera of Panama XIV. New species of microcaddisflies (Trichoptera: Hydroptilidae) from Omar Torrijos Herrera National Park, pp. 1-19 in Insecta Mundi 763 on page 8, DOI: 10.5281/zenodo.3779124
Pseudopotential in resonant regimes
Creators: name: Pricoupenko, Ludovic
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The zero-range potential approach is extended for the description of situations where two-body scattering is resonant in arbitrary partial waves. The formalism generalizes the Fermi pseudopotential which can be used only for s-wave broad resonances. In a given channel, the interaction is described either in terms of a contact condition on the wave function or with a family of pseudopotentials. We show that it is necessary to introduce a regularized scalar product for wave functions obtained in the zero-range potential formalism (except for the Fermi pseudopotential). This metrics shows that the geometry of these Hilbert spaces depends crucially on the interaction.
description: 12 pages - 1 figure
An ideal compensator model of speech perception
Creators: name: Knutsen, Sten Kristian
Publisher: name: No Publisher Supplied
Year: 2021

description: One of the key issues in speech perception is how listeners are able to accurately categorize linguistic units (e.g., phonemes) from acoustic cues that contain variation due to multiple overlapping layers of information (Liberman et al., 1967). Over the years, researchers have developed various compensation procedures (e.g., vowel formant normalization) that strive to overcome this variation and increase classification accuracy. Although computationally efficient and widely used, these compensation procedures fall short conceptually as i) they are not necessarily computational models of compensation/ perception/cognition and ii) they do not allow inferences regarding classification to interact dynamically with inferences regarding compensation. In this work we outline a bayesian computational framework for speech perception and compensation, the ideal compensator. Because our listener model infers how to compensate based on a speaker’s generative model while also simultaneously inferring linguistic category, we believe our approach is novel as it both increases classification accuracy and addresses the conceptual issues ignored by previous compensation models and procedures.
Smart Rewritings of the Basic Equations for Quantitative Non-Linear Inverse Scattering
Creators: name: Bevacqua, Martina T.
name: Isernia, Tommaso
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Nonlinearity arising from mutual interactions is one of the two main difficulties to be addressed in inverse scattering. In this paper, we review and describe under a common rationale some approaches which have been introduced in literature in order to counteract nonlinearity. In particular, we focus on possible rewritings of the Lippman Schwinger basic equation such to reduce the degree of nonlinearity of inverse scattering problem. In detail, three different rewritings are discussed and compared by emphasizing similarities and the differences, and in the same rewriting spirit, we also summarize and discuss the Virtual Experiments framework. Then, some possible joint exploitations of the above concepts are introduced, discussed and tested against numerical examples.
description: in IEEE Open Journal of Antennas and Propagation, 2021
Density and spin response functions in ultracold fermionic atom gases
Creators: name: Mihaila, Bogdan
name: Gaudio, Sergio
name: Blagoev, Krastan B.
name: Balatsky, Alexander V.
name: Littlewood, Peter B.
name: Smith, Darryl L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a new method of detecting the onset of superfluidity in a two-component ultracold fermionic gas of atoms governed by an attractive short-range interaction. By studying the two-body correlation functions we find that a measurement of the momentum distribution of the density and spin response functions allows one to access separately the normal and anomalous densities. The change in sign at low momentum transfer of the density response function signals the transition between a BEC and a BCS regimes, characterized by small and large pairs, respectively. This change in sign of the density response function represents an unambiguous signature of the BEC to BCS crossover. Also, we predict spin rotational symmetry-breaking in this system.
Schibilsky, Michael, Schlüter, Ulf, Stobbe, Heinz-Günther: Gerechtigkeit - Frieden - Bewahrung der Schöpfung
Creators: name: Schroer, Jürgen
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 40 Nr. 1 (1991): Ökumenische Rundschau, Band 40, Heft 1
Continuous PPG-Based Blood Pressure Monitoring Using Multi-Linear Regression
Creators: name: Haddad, Serj
name: Boukhayma, Assim
name: Caizzone, Antonino
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, we present the Senbiosys blood pressure monitoring algorithm (SB-BPM) that solely requires a photoplethysmography (PPG) signal. The technology is based on pulse wave analysis (PWA) of PPG signals retrieved from different body locations to continuously estimate the systolic blood pressure (SBP) and the diastolic blood pressure (DBP).
The catalog of short periods stars from the ''Pi of the Sky'' data
Creators: name: Majczyna, A.
name: Nalezyty, M.
name: Biskup, M.
name: Wrochna, G.
name: Sokołowski, M.
name: Nawrocki, K.
name: Małek, K.
name: Mankiewicz, L.
name: Piotrowski, L. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the data from the ''Pi of the Sky'' project we made a catalog of the variable stars with periods from 0.1 to 10 days. We used data collected during a period of two years (2004 and 2005) and classified 725 variable stars. Most of the stars in our catalog are eclipsing binaries - 464 (about 64%), while the number of pulsating stars is 125 (about 17%). Our classification is based on the shape of the light curve, as in the GCVS catalog. However, some stars in our catalog were classified as of different type than in the GCVS catalog. We have found periods for 15 stars present in the GCVS catalog with previously unknown period.
description: New Astronomy in print
title: Zwischen Wirklichkeit und Traum. „Kunst aus dem Holocaust“ im Deutschen Historischen Museum Berlin, 26. Januar bis 3. April 2016
Creators: name: Schlott, René
Publisher: name: ZZF - Centre for Contemporary History: Visual History
Year: 2016

description: Alle ausgestellten 100 Werke aus der israelischen Holocaust-Gedenkstätte Yad Vashem eint, dass sie im Augenblick der Verfolgung entstanden und nicht retrospektiv nach dem Ende des Krieges oder im Abstand von Jahrzehnten auf die Ereignisse blicken. Jedes Bild vereint drei Ebenen in sich, die die Bildtexte zu verbinden suchen: das Dargestellte, den Darstellenden sowie die Überlieferung des Werkes. Der hervorragende Katalog analysiert zudem Text, Kontext und Subtext der Bildinhalte. Zugleich geht die Ausstellung auf einer weiteren Ebene auch der Frage nach, wie unter den Umständen von Lager und Ghetto das Material für das Anfertigen der Kunstwerke beschafft werden konnte. Gemalt wurde auch auf Kartoffelsäcken und auf Watteverpackungen; für Linolschnitte wurden alte Reifen verwandt. Doch die meisten Werke sind auf Papier meist minderer Qualität entstanden und deshalb konservatorisch heikel. Überlebt haben die verbotenen Bilder in Tongefäßen oder anderen Verstecken.
Family Dependence in SU(3)_C X SU(3)_L X U(1)_X models
Creators: name: Ochoa, Fredy
name: Martinez, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using experimental results at the Z-pole and atomic parity violation, we perform a chi-squared fit at 95% CL to obtain family-dependent bounds to Z_2 mass and Z-Z' mixing angle in the framework of SU(3)_C X SU(3)_L X U(1)_X models. The allowed regions depend on the assignment of the quark families in mass eigenstates into the three different families in weak eigenstates that cancel anomalies
description: 14 pages, 2 figures, LaTeX2e; added references, added equations with electroweak corrections for section 4. Version to appear in Phys. Rev. D
Learning and prediction using radio and non-radio attributes in wireless systems
Creators: name: Kuber, Tejashri
Publisher: name: No Publisher Supplied
Year: 2021

description: Wireless technology and connectivity are spreading rapidly around the globe. The advancement of machine learning tools plays a major role in pushing the limits of wireless communication applications. With the volume, variety and velocity of rich datasets available, we are able to accurately model and predict different aspects of wireless systems which can help with efficient utilization of available resources. We aim to harness radio (such as channel capacity and received signal constellation) and non-radio attributes (such as weather, busy period data from an open-source API) by applying machine learning algorithms to improve the overall wireless system.In this dissertation, we start by working on a small scale network. We present the problem of jointly predicting modulation and the number of transmit antennas for a non-cooperative system or a dynamically operating cognitive system. We use a discrete-wavelet transform on the received complex samples to separate the different modulation classes. We then use the k-nearest neighbor approach coupled with k-means clustering to further classify the signals, utilizing the symmetry and relative distances of the constellation points. The performance of the classifiers at different stages of the algorithm demonstrates a high accuracy where the packets can be decoded. This is followed by predicting channel transition and the state of the environment to improve the existing transmit beamforming procedure by changing sounding times. The experimental results using Software Defined Radios (SDRs) on the ORBIT testbed show more than 96% classification success of channel transition and a significant difference in error vector values for different types of channel variations.We then progress to working on a larger scale, by employing deep learning techniques on a cellular network in a dense urban area using statistically significant non-radio features. We focus on using non-radio attributes and their impact in predicting cellular traffic. Prediction of user traffic in cellular networks is one of the promising ways to improve resource utilization among base stations. We consider traffic from neighboring cells and other non-cellular-traffic related attributes such as weather, busy period data from open-source API as features to augment the cellular traffic data and improve prediction. Specifically, we augment cellular traffic data from the City of Milan and its surroundings and we perform two types of analyses: (i) a one-step prediction or a point-by-point forecast of traffic and (ii) a trend analysis which is the forecast of traffic over an extended period. We compare the results with existing statistical methods such as auto-regression integrated moving averages (ARIMA) and exponential smoothing and observe gains in the trend analysis by providing the augmented data, whereas the one-step prediction is not much impacted.
Validation of the Gaia Early Data Release 3 parallax zero-point model with asteroseismology
Creators: name: Zinn, Joel C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The Gaia Early Data Release 3 (EDR3) provides trigonometric parallaxes for 1.5 billion stars, with reduced systematics compared to Gaia Data Release 2 and reported precisions better by up to a factor of two. New to EDR3 is a tentative model for correcting the parallaxes of magnitude-, position-, and color-dependent systematics for five- and six-parameter astrometric solutions, $Z_5$ and $Z_6$. Using a sample of over 2,000 first-ascent red giant branch stars with asteroseismic parallaxes, I perform an independent check of the $Z_5$ model in a Gaia magnitude range of $9 \lesssim G \lesssim 13$ and color range of $1.4μ\mathrm{m} ^{-1} \lesssim ν_{\mathrm{eff}} \lesssim 1.5 μ\mathrm{m} ^{-1}$. This analysis therefore bridges the Gaia team's consistency check of $Z_5$ for $G > 13$, and indications from independent analysis using Cepheids of a $\approx 15 μ\mathrm{as}$ over-correction for $G < 11$. I find an over-correction sets in at $G \lesssim 10.8$, such that $Z_5$-corrected EDR3 parallaxes are larger than asteroseismic parallaxes by $15 \pm 3 μ\mathrm{as}$. For $G \gtrsim 10.8$, EDR3 and asteroseismic parallaxes in the Kepler field agree up to a constant consistent with expected spatial variations in EDR3 parallaxes after a linear, color-dependent adjustment. I also infer an average under-estimation of EDR3 parallax uncertainties in the sample of $22 \pm 6\%$, consistent with the Gaia team's estimates at similar magnitudes and independent analysis using wide binaries. Finally, I extend the Gaia team's parallax spatial covariance model to brighter magnitudes ($G < 13$) and smaller scales (down to $\approx 0.1°$), where systematic EDR3 parallax uncertainties are at least $\approx 3-4 μ\mathrm{as}$.
description: Published in AJ
Alternative, single family housing, multi-family housing and mixed-use housing for Richmond City, suburbs
Creators: name: Lacas, Desiree M. K.
Publisher: name: University of British Columbia
Year: 2009

description: The objective of this project is to propose the addition of a new layer of housing in the typical Post WW II suburban residential context in order to provide more housing alternatives for today's diverse population. This project was also an exploration of ways that this new housing could address the transition of zones from residential to other uses such as commercial, industrial and agricultural. I chose Richmond as my prototype site for exploration because I believe it is typical of many suburban communities throughout North America. The image in North America of the traditional family of a married couple with young children with an employed husband and homemaker wife that characterized the 1950's and 1960's doesn't match today's demographics. Today other types of family structures account for nearly 79% of the households created, the fastest-growing household type is the single person living alone, which comprise 23% of all households and single-parent families account for 14% (Canada Census Statistics 1991 and projections). As household composition becomes more diverse I believe architects must develop new forms to accommodate these changes. The residential landscape we inhabit today is largely the result of Post WW II prosperity and values. In the 1950's the single-family house became the standard and bankers, builders and developers continue to concentrate the bulk of capital resources of housing on the model of the single family detached house despite the demographic shifts to new types of households. Today many individuals and families are experiencing difficulties in finding housing that meets their particular needs. The design solutions for the nineties will not work unless they challenge gender stereotypes glorified in the Post WW II pattern of development. This pattern of development implemented rigid zoning that separated activities of public life such as places of wage work from the activities of home life. Private life and public life, private space and public space are bound together despite cultural pressures to separate them, I believe even more so today more with emergence of the home office. In this project I explored ways to create more flexible forms of housing and much richer and complex sets of transitional spaces in order to accommodate the activities that are required to connect private life and public life effectively for today's population.
Grassland Easement Acquisition: Conversion Hazard Rate, Additionality, and Spatial Spillover
Creators: name: Miao, Ruiqing
name: Feng, Hongli
name: Hennessy, David A.
name: Arora, Gaurav
name: Loesch, Charles R.
name: Miao, Ruiqing
name: Feng, Hongli
name: Hennessy, David A.
name: Arora, Gaurav
name: Loesch, Charles R.
Publisher: name: Unknown
Year: 2022
Subjects: subject: Environmental Economics and Policy
subject: Land Economics/Use
subject: additionality
subject: conversion hazard
subject: heuristic algorithms
subject: grassland easement
subject: spatial spillover

description: This study investigates the roles of additionality of environmental benefits and spatial spillover effect of grassland conversion in determining the optimal grassland easement acquisitions. The preliminary results indicate that when conversion hazard rate is large then considering additionality and spatial spillover does not secure much additional environmental benefit than does ignoring additionality or spatial spillover. The study further explores the performance of three environmental benefit targeting strategies as well as three heuristic optimization algorithms in terms of securing environmental benefits via easement acquisition.
description: Very preliminary draft. Please do not quote or cite.
On toric face rings
Creators: name: Ichim, Bogdan
name: Roemer, Tim
Publisher: name: arXiv
Year: 2006
Subjects: subject: Commutative Algebra (math.AC)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05E99, 13C14, 13D45

description: Following a construction of Stanley we consider toric face rings associated to rational pointed fans. This class of rings is a common generalization of the concepts of Stanley--Reisner and affine monoid algebras. The main goal of this article is to unify parts of the theories of Stanley--Reisner- and affine monoid algebras. We consider (non-pure) shellable fan's and the Cohen--Macaulay property. Moreover, we study the local cohomology, the canonical module and the Gorenstein property of a toric face ring.
description: 22 pages; Revised version of the paper
Superuniversality of superdiffusion
Creators: name: Ilievski, Enej
name: De Nardis, Jacopo
name: Gopalakrishnan, Sarang
name: Vasseur, Romain
name: Ware, Brayden
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Anomalous finite-temperature transport has recently been observed in numerical studies of various integrable models in one dimension; these models share the feature of being invariant under a continuous non-abelian global symmetry. This work offers a comprehensive group-theoretic account of this elusive phenomenon. For an integrable quantum model invariant under a global non-abelian simple Lie group $G$, we find that finite-temperature transport of Noether charges associated with symmetry $G$ in thermal states that are invariant under $G$ is universally superdiffusive and characterized by dynamical exponent $z = 3/2$. This conclusion holds regardless of the Lie algebra symmetry, local degrees of freedom (on-site representations), Lorentz invariance, or particular realization of microscopic interactions: we accordingly dub it as superuniversal. The anomalous transport behavior is attributed to long-lived giant quasiparticles dressed by thermal fluctuations. We provide an algebraic viewpoint on the corresponding dressing transformation and elucidate formal connections to fusion identities amongst the quantum-group characters. We identify giant quasiparticles with nonlinear soliton modes of classical field theories that describe low-energy excitations above ferromagnetic vacua. Our analysis of these field theories also provides a complete classification of the low-energy (i.e., Goldstone-mode) spectra of quantum isotropic ferromagnetic chains.
description: 44 pages, 9 figures, 5 tables (minor corrections)
Kaluza-Klein fermion mass matrices from Exceptional Field Theory and ${\cal N} =1$ spectra
Creators: name: Cesaro, Mattia
name: Varela, Oscar
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using Exceptional Field Theory, we determine the infinite-dimensional mass matrices for the gravitino and spin-$1/2$ Kaluza-Klein perturbations above a class of anti-de Sitter solutions of M-theory and massive type IIA string theory with topologically-spherical internal spaces. We then use these mass matrices to compute the spectrum of Kaluza-Klein fermions about some solutions in this class with internal symmetry groups containing SU(3). Combining these results with previously known bosonic sectors of the spectra, we give the complete spectrum about some ${\cal N}=1$ and some non-supersymmetric solutions in this class. The complete spectra are shown to enjoy certain generic features.
description: 46 pages, 25 tables; v2, minor typos corrected