cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamic Real-Time 3-Dimensional Model of the Tongue’s Motion
Creators: name: Lacca, Davide
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Patients undergoing traditional speech therapy often have difficulty grasping the therapist’s audible cues for the correct intended movement of the tongue. This lack of clarity is attributed to the absence of visual biofeedback. Therefore, a model to visualize the tongue’s real-time motion could assist in providing the necessary biofeedback required in speeding up the process of the therapy. Hence, we have developed a dynamic 3-Dimensional (3D) model of the human tongue using the Unity software platform (Unity Technologies, San Francisco). This model is a standalone platform that could also be used in conjunction with the discreet oral wearable device developed by our team. The model was developed from static Magnetic Resonance (MR) images of the tongue, collected at UIC Center for Magnetic Resonance Research. 34 series of MR images of the static position of the tongue during various static tasks were captured. In order to create the 3D model, first the MR images were segmented. Then, a mesh of the tongue was developed and optimized for all the shapes that the tongue could assume. The meshes were then exported to Unity and were animated. The model of the motion of the tongue was enabled by moving a set of splines attached to the mesh. Furthermore, a User Interface (UI) was developed to interact with the model. The resulted model allows for reproduction of movements associated with 24 English phonemes and the words composed of these 24 phonemes. The model could interact in real-time with the oral wearable device in order to create live models of the motion. The model is also capable of reproducing the tongue’s motion using offline data from the wearable device.
Methodik für Erfassung und Bewertung von emotionalem Kundenfeedback für variantenreiche virtuelle Produkte in immersiver Umgebung
Creators: name: Katicic, Jurica
Publisher: name: Karlsruhe
Year: 2012
Subjects: Emotionales Kundenfeedback
Virtual Reality
Virtuelle Produkte

description: In der Arbeit wird eine neuartige Methodik zur kundenzentrierten Lösungsauswahl für zukünftige Produkte in der Konzeptphase anhand deren virtuellen Darstellung beschrieben. Sie integriert die Technologie der Virtuellen Realität und die Emotionsforschung in die parallel verlaufenden und miteinander interagierenden Prozesse der Produktentwicklung und der Marktforschung, um die Gewinnung von relevantem emotionalem Kundenfeedback im Rahmen von interaktiven Produkterlebnissen zu ermöglichen.
Additional file 3 of Viability of a MSQOL-54 general health-related quality of life score using bifactor model
Creators: name: Giordano, Andrea
name: Testa, Silvia
name: Bassi, Marta
name: Cilia, Sabina
name: Bertolotto, Antonio
name: Quartuccio, Maria Esmeralda
name: Pietrolongo, Erika
name: Falautano, Monica
name: Grobberio, Monica
name: Niccolai, Claudia
name: Allegri, Beatrice
name: Viterbo, Rosa Gemma
name: Confalonieri, Paolo
name: Giovannetti, Ambra Mara
name: Cocco, Eleonora
name: Grasso, Maria Grazia
name: Lugaresi, Alessandra
name: Ferriani, Elisa
name: Nocentini, Ugo
name: Zaffaroni, Mauro
name: De Livera, Alysha
name: Jelinek, George
name: Solari, Alessandra
name: Rosato, Rosalba
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 3: Supplementary figure 3. Configuration of the Bifactor 1 model, including 11 group factors and one general factor; items of the overall QOL subscale (53, 54) loaded onto the general factor only, and their residuals were allowed to correlate. CF, cognitive function; EB, emotional wellbeing; EN, energy; HD, health distress; HP, health perceptions; HRQOL, health-related quality of life; PH, physical health; QOL, overall quality of life; RLEP, role limitations due to emotional problems; RLPP, role limitations due to physical problems; SeF, sexual function; SF, social function.
Successful Practice within Health Systems Science among Entering Residents: A Qualitative Study
Creators: name: Ridinger, Heather A
Publisher: name: University of Illinois at Chicago
Year: 2020
Subjects: Uncategorized

description: Background: The American Medical Association has defined the field of health systems sciences (HSS), viewed as a “third pillar” of medical education, alongside the basic and clinical sciences. Because a shared competency framework is lacking between undergraduate (UME) and graduate medical education (GME), entering residents are unprepared to implement HSS concepts in the workplace. The UME-GME transition is a critical timeframe to prepare trainees with skills for safe and effective care and foster a dedication to improving the health care system. This study investigates GME faculty observations of knowledge, attitudes and behaviors that define successful practice within HSS. Design and Methods: This study is an inductive-deductive qualitative study of phone interviews of Vanderbilt residency program directors, associate program directors and core faculty representing programs that train year-one residents. Interview questions were piloted and revised. Interviews were performed by a trained qualitative researcher, audio-recorded and transcribed. An initial codebook was developed, and de-identified transcripts were independently analyzed by two qualitative researchers using inductive and deductive approaches to identify themes and subthemes. All codes were discussed and reconciled for agreement. Results: Seventeen interviews were completed (17/39, 45%), representing a variety of specialties. Faculty described a developmental framework involving inputs, core workforce skills, HSS-related skills, and outputs. Inputs represent pre-curricular preparatory experiences common to well-prepared residents (ex. professional degrees, work experience, extracurricular involvement, medical school exposure). Successful residents exhibit core workforce characteristics and behaviors, for example, a growth mindset, curiosity, initiative, and desire to learn the system. While GME faculty often feel unprepared to teach or assess HSS concepts, they describe specific HSS-related skills unique to specific learning environments that characterize successful practice among entering residents. “Systems thinking” involves integrating skills across multiple domains and results in high-quality, person-centered care and systems improvements. Discussion: Faculty observations of the behaviors, knowledge and attitudes that define successful practice within HSS has highlighted the importance of pre-curricular experience including medical school curricula; core workforce characteristics and behaviors; and describes entry level skills within each of the HSS domains that characterize successful practice. This study provides an initial description of successful practice within HSS for entering residents.
Nonlinear Optics of Split-Ring Resonators and their Application as a Thermal Detector
Creators: name: Niesler, Fabian Bernd Peter
Publisher: name: Karlsruhe
Year: 2012
Subjects: Nonlinear Optics
Metamaterials

description: The experiments presented in this thesis aim to provide a contribution to the progress in the field of linear and nonlinear optics of metamaterials and their applications. The nonlinear optical experiments are focussed on second-harmonic generation of gold split-ring resonator arrays as a paradigmatic building block of metamaterials. In addition, this thesis presents a thermal detector based on a modified split- ring resonator structure.
Sub-Kelvin scanning tunneling microscopy on magnetic molecules
Creators: name: Zhang, Lei
Publisher: name: Karlsruhe
Year: 2012
Subjects: scanning tunneling microscopy
magnetic molecules

description: Magnetic molecules have attracted lots interest. In this work, an ultra-stable and low noise scanning tunneling microscopy operating at 400 mK using He-3 (930 mK using He-4) has been developed. The magnetic behavior of different magnetic molecules on substrates, especially the exchange interaction between the magnetic ions, the magnetic anisotropy on the surface, the magnetic excitations as well as the Kondo effect, were studied by using STM.
Non-equilibrium transport in electron solids
Creators: name: Rossokhaty, Oleksandr
Publisher: name: University of British Columbia
Year: 2017

description: Electron-electron interactions inside of two dimensional electron gases (2DEG) in out-of-plane magnetic field and at very low temperatures under certain conditions can lead to electron localization in Wigner crystals or even more complex periodic structures. These states are usually referred to as electron solid phases and result in Reentrant Integer Quantum Hall Effect (RIQHE) in transport measurements. However, their microscopic description remains unclear, as insulating phases with different microscopic structure demonstrate indistinguishable macroscopic transport properties. In this work the transport of the electron solids is investigated away from equilibrium conditions. This approach allows to break an insulating state by application of significant current bias to the 2DEG. As bias current increases, longitudinal and Hall resistivities measured for these states show multiple sharp breakdown transitions. Whereas the high bias breakdown of fractional quantum Hall states is consistent with simple heating, the nature of RIQH breakdown remains to be a subject of a considerable debate. A comparison of RIQH breakdown characteristics at multiple voltage probes indicates that these signatures can be ascribed to a phase boundary between broken-down and unbroken regions, spreading chirally from source and drain contacts as a function of bias current and passing voltage probes one by one. It is shown, that the chiral sense of the spreading is not set by the chirality of the edge state itself, instead depending on electron- or hole-like character of the RIQH state. Although at high current bias the electron temperature is unmeasurable with standard techniques, the data shows that electron solid states appear to stay temperature sensitive even after the RIQH effect is destroyed. A comparison of temperature dependence and the spatial distribution of the Hall potential along the edge provides an evidence, that the bulk 2DEG remains insulating up to surprisingly high biases. Finally a metastable stripe phase around $\nu=9/2$ is investigated under non-equilibrium conditions in the sample with electron density, which is close to the stripe reorientation critical point. The anisotropy of non-equilibrium stripe phase under high current biases shows a strong dependence of the natural orientation of stripes on exact filling factor.
Additional file 4 of Viability of a MSQOL-54 general health-related quality of life score using bifactor model
Creators: name: Giordano, Andrea
name: Testa, Silvia
name: Bassi, Marta
name: Cilia, Sabina
name: Bertolotto, Antonio
name: Quartuccio, Maria Esmeralda
name: Pietrolongo, Erika
name: Falautano, Monica
name: Grobberio, Monica
name: Niccolai, Claudia
name: Allegri, Beatrice
name: Viterbo, Rosa Gemma
name: Confalonieri, Paolo
name: Giovannetti, Ambra Mara
name: Cocco, Eleonora
name: Grasso, Maria Grazia
name: Lugaresi, Alessandra
name: Ferriani, Elisa
name: Nocentini, Ugo
name: Zaffaroni, Mauro
name: De Livera, Alysha
name: Jelinek, George
name: Solari, Alessandra
name: Rosato, Rosalba
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 4: Supplementary table 1.Standardized factor loadings in the Bifactor 1 model.
Unidimensional reduction of the 3D Gross-Pitaevskii equation with two- and three-body interactions
Creators: name: Cardoso, W. B.
name: Avelar, A. T.
name: Bazeia, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We deal with the three-dimensional Gross-Pitaevskii equation, which is used to describe a cloud of dilute bosonic atoms that interact under competing two- and three-body scattering potentials. We study the case where the cloud of atoms is strongly confined in two spatial dimensions, allowing us to build an unidimensional nonlinear equation, controlled by the nonlinearities and the confining potentials that trap the system along the longitudinal coordinate. We focus attention on specific limits, dictated by the cubic and quintic coefficients, and we implement numerical simulations to help us to quantify the validity of the procedure.
description: 6 pages, 4 figures; version to appear in PRE
Multi-order interference is generally nonzero
Creators: name: De Raedt, Hans
name: Michielsen, Kristel
name: Hess, Karl
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is demonstrated that the third-order interference, as obtained from explicit solutions of Maxwell's equations for realistic models of three-slit devices, including an idealized version of the three-slit device used in a recent three-slit experiment with light (U. Sinha et al., Science 329, 418 (2010)), is generally nonzero. The hypothesis that the third-order interference should be zero is shown to be fatally flawed because it requires dropping the one-to-one correspondence between the symbols in the mathematical theory and the different experimental configurations.
description: Replaced Figs. 4,5 and caption of Fig.4
Перспективные масличные культуры в рационе птицы
Creators: name: Басова Е.А.
name: Ядрищенская О.А.
name: Шпынова С.А.
name: Селина Т.В.
Publisher: name: Эффективное животноводство
Year: 2021
Subjects: кормовые ингредиенты
семена
жмыхи
химический состав
питательность
стоимость комбикорма
feed ingredients
seeds
cakes
chemical composition
nutritional value
cost of compound feed

description: В статье представлены результаты исследований питательной ценности кормовых культур, таких как лен, рапс, рыжик, сурепица, а также продуктов их переработки, их использование в кормлении различных видов сельскохозяйственной птицы. Все они являются перспективными для птицеводства и могут использоваться в составе комбикорма, укрепляя и расширяя кормовую базу хозяйств, при этом удешевляя комбикорма.
description: The article presents the results of studies on the nutritional value of forage crops such as flax, rapeseed, camelina, rape, as well as their processed products, their use in feeding various types of poultry. All of them are promising for poultry farming and can be used as part of compound feed, strengthening and expanding the feed base of farms, while reducing the cost of compound feed.
Additional file 5 of Viability of a MSQOL-54 general health-related quality of life score using bifactor model
Creators: name: Giordano, Andrea
name: Testa, Silvia
name: Bassi, Marta
name: Cilia, Sabina
name: Bertolotto, Antonio
name: Quartuccio, Maria Esmeralda
name: Pietrolongo, Erika
name: Falautano, Monica
name: Grobberio, Monica
name: Niccolai, Claudia
name: Allegri, Beatrice
name: Viterbo, Rosa Gemma
name: Confalonieri, Paolo
name: Giovannetti, Ambra Mara
name: Cocco, Eleonora
name: Grasso, Maria Grazia
name: Lugaresi, Alessandra
name: Ferriani, Elisa
name: Nocentini, Ugo
name: Zaffaroni, Mauro
name: De Livera, Alysha
name: Jelinek, George
name: Solari, Alessandra
name: Rosato, Rosalba
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 5: Supplementary table 2. Correlations between items of the social function subscale.
Notes on Properties of Holographic Strange Metals
Creators: name: Lee, Bum-Hoon
name: Pang, Da-Wei
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate properties of holographic strange metals in $p+2$-dimensions, generalizing the analysis performed in arXiv:0912.1061. The bulk spacetime is $p+2$-dimensional Lifshitz black hole, while the role of charge carriers is played by probe D-branes. We mainly focus on massless charge carriers, where most of the results can be obtained analytically. We obtain exact results for the free energy and calculate the entropy density, the heat capacity as well as the speed of sound at low temperature. We obtain the DC conductivity and DC Hall conductivity and find that the DC conductivity takes a universal form in the large density limit, while the Hall conductivity is also universal in all dimensions. We also study the resistivity in different limits and clarify the condition for the linear dependence on the temperature, which is a key feature of strange metals. We show that our results for the DC conductivity are consistent with those obtained via Kubo formula and we obtain the charge diffusion constant analytically. The corresponding properties of massive charge carriers are also discussed in brief.
description: 32 pages, minor modifications
Slow dynamics, dynamic heterogeneities, and fragility of supercooled liquids confined in random media
Creators: name: Kim, Kang
name: Miyazaki, Kunimasa
name: Saito, Shinji
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using molecular dynamics simulations, we study the slow dynamics of supercooled liquids confined in a random matrix of immobile obstacles. We study the dynamical crossover from glass-like to Lorentz-gas-like behavior in terms of the density correlation function, the mean square displacement, the nonlinear dynamic susceptibility, the non-Gaussian parameter, and the fragility. Cooperative and spatially heterogeneous dynamics are suppressed as the obstacle density increases, which lead to the more Arrhenius-like behavior in the temperature dependence of the relaxation time. Our findings are qualitatively consistent with the results of recent experimental and numerical studies for various classes of spatially heterogeneous systems. We also investigate the dependence of the dynamics of mobile particles on the protocol to generate the random matrix. A reentrant transition from the arrested phase to the liquid phase as the mobile particle density {\it increases} is observed for a class of protocols. This reentrance is explained in terms of the distribution of the volume of the voids that are available to the mobile particles.
description: 15 pages, 8 figures
Using large-scale screens to identify novel regulators of endosomal trafficking in yeast
Creators: name: Dalton, Lauren
Publisher: name: University of British Columbia
Year: 2018

description: Cellular protein trafficking, the concerted action of moving proteins to the appropriate cellular location is important for the proper functioning of the cell. Proteins are sorted at hubs such as the endosome, where they are targeted either for degradation or for recycling to the Golgi. Yeast is an excellent model organism to study protein trafficking due to the conservation with higher eukaryotes and the ease of genetic manipulation. In this thesis, two different high-throughput approaches were used to study the protein machinery that controls the yeast endosomal sorting network. First, correlation analysis, which compares genome-wide phenotypic profiles, was used to uncover new aspects of endosomal sorting and two specific examples were chosen for further study. In the first example, we explored positive and negative genetic interaction profile correlations for members of the uncharacterized yeast complex, BLOC, which suggested a role in endosomal sorting. In particular, we found that BLOC was needed for proper downregulation of a manganese transporter similar to ESCRT (Endosomal Sorting Complex Required for Transport, a well-studied endosomal sorting complex. In the second example, we explored the predictive value of negatively correlated genetic interaction profiles for gene mutants within known protein complexes and found that these negative correlations described two types of regulatory interactions between the resulting proteins, direct inhibition and competition for shared subunits. We then showed that the previously uncharacterized VID Associated Factor 1 (Vaf1) was negatively correlated with respect to its genetic interactions and downregulated by the VID complex. In summary, correlation analysis provides a robust tool to identify the functional relationship between proteins. Second, a quantitative genome-wide endosomal sorting screen followed by a secondary high-throughput microscopy screen, uncovered novel endosomal regulators of the flippase, Neo1. Loss of these regulators caused three phenotypic outcomes: reduced recycling from endosomes, delayed endosomal progression, or reduced colocalization with known binding partners. In particular, a short motif in the N-terminus of Neo1 was found to be necessary for Snx3 dependent sorting, correct sorting of other Snx3 cargos, and full Neo1 function. Overall, this study illuminates the power of high-throughput screens to discover new regulators of endosomal sorting.
Optimal control of magnetization dynamics in ferromagnetic heterostructures by spin--polarized currents
Creators: name: Wenin, M.
name: Windisch, A.
name: Poetz, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the switching-process of the magnetization in a ferromagnetic-normal-metal multilayer system by a spin polarized electrical current via the spin transfer torque. We use a spin drift-diffusion equation (SDDE) and the Landau-Lifshitz-Gilbert equation (LLGE) to capture the coupled dynamics of the spin density and the magnetization dynamic of the heterostructure. Deriving a fully analytic solution of the stationary SDDE we obtain an accurate, robust, and fast self-consistent model for the spin-distribution and spin transfer torque inside general ferromagnetic/normal metal heterostructures. Using optimal control theory we explore the switching and back-switching process of the analyzer magnetization in a seven-layer system. Starting from a Gaussian, we identify a unified current pulse profile which accomplishes both processes within a specified switching time.
description: 5 figures
Design and Application of Continuous Magnetic Extraction
Creators: name: Fischer, Ingo
Publisher: name: Karlsruhe
Year: 2013
Subjects: Downstream Processing
Magnetische Partikel
Wässrige Zweiphasensysteme
Proteinaufreinigung

description: Im Rahmen der vorliegenden Dissertation wurde ein kontinuierlicher Prozess zur Aufreinigung von Proteinen durch die Kombination von funktionellen magnetischen Nanopartikeln und mizellaren wässrigen Zweiphasensystemen entwickelt. Die Dissertation beschäftigt sich dabei sowohl mit der entsprechenden Prozessanalyitk und den physiko-chemischen Hintergründen als auch mit der Anwendung des Prozesses im Liter Massstab.
Strange Metallic Behavior in Anisotropic Background
Creators: name: Lee, Bum-Hoon
name: Pang, Da-Wei
name: Park, Chanyong
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We continue our analysis on conductivity in the anisotropic background by employing the D-brane probe technique, where the D-branes play the role of charge carriers. The DC and AC conductivity for massless charge carriers are obtained analytically, while interesting curves for the AC conductivity are also plotted. For massive charge carriers, we calculate the DC and AC conductivities in the dilute limit and we fix the parameters in the Einstein-Maxwell-dilaton theory so that the background exhibits the same scaling behaviors as those for real-world strange metals. The DC conductivity at finite density is also computed.
description: 24 pages, 2 figures, minor modifications
Process Mining for Process Improvement - An Evaluation of Analysis Practices: Interview Guide and Coding Schema
Creators: name: Kubrak, Kateryna
Publisher: name: figshare
Year: 2022
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Supplementary material (interview guide, coding schema) for the paper Process Mining for Process Improvement - An Evaluation of Analysis Practices by K. Kubrak et al. submitted to RCIS'22.
Intraoperative Modellierung und Registrierung für ein laparoskopisches Assistenzsystem
Creators: name: Röhl, Sebastian
Publisher: name: Karlsruhe
Year: 2013
Subjects: Minimal-invasive Chirurgie
Bildverarbeitung
Oberflächenrekonstruktion
Registrierung

description: Ziel ist die Nutzung einer präoperativen Planung bei laparoskopischen Eingriffen. Ein Problem sind Änderungen des Operationsumfelds während des Eingriffs. Im Rahmen dieser Arbeit wird ein Modell aus Bildern eines Stereoendoskops und Messwerten eines Kraftsensors vorgestellt. Ein Fokus liegt auf einem Verfahren zur Oberflächenrekonstruktion. Weiterhin werden Methoden zur initialen Registrierung von prä- und intraoperativen Modellen und zur Aufrechterhaltung der Registrierung präsentiert.
Comments on F-maximization and R-symmetry in 3D SCFTs
Creators: name: Niarchos, Vasilis
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report preliminary results on the recently proposed F-maximization principle in 3D SCFTs. We compute numerically in the large-N limit the free energy on the three-sphere of an N=2 Chern-Simons-Matter theory with a single adjoint chiral superfield which is known to exhibit a pattern of accidental symmetries associated to chiral superfields that hit the unitarity bound and become free. We observe that the F-maximization principle produces a U(1) R-symmetry consistent with previously obtained bounds but inconsistent with a postulated Seiberg-like duality. Potential modifications of the principle associated to the decoupling fields do not appear to be sufficient to account for the observed violations.
description: 17 pages, 3 figures; v2 a reference has been added, a missing factor of 2 has been corrected in eq (3.3) and the numerical results have been accordingly updated. The new results do not show any obvious signs of violation of previously obtained bounds. A potential disagreement with a postulated Seiberg-like duality is noted
Additional file 1 of Improving stool sample processing and pyrosequencing for quantifying benzimidazole resistance alleles in Trichuris trichiura and Necator americanus pooled eggs
Creators: name: Gandasegui, Javier
name: Grau-Pujol, Berta
name: Cambra-Pelleja, María
name: Escola, Valdemiro
name: Demontis, Maria Antonietta
name: Cossa, Anelsio
name: Jamine, José Carlos
name: Balaña-Fouce, Rafael
name: van Lieshout, Lisette
name: Muñoz, José
name: Martínez-Valladares, María
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1. Standard operation procedure of the three protocols for sample processing.
Acoustic Full Waveform Inversion of Marine Reflection Seismic Data
Creators: name: Przebindowska, Anna
Publisher: name: Karlsruhe
Year: 2013
Subjects: inversion
seismic
full waveform

description: The aim of this thesis is the application of 2D acoustic full waveform inversion to conventional marine streamer data acquired in the North Sea. The possibilities and limitations of the inversion method are investigated in details in order to provide some guidance on the appropriate choice of the data processing routines and on the design of an efficient inversion scheme. Furthermore, the thesis discusses several practical issues related to the field data inversion.
Relative intensity squeezing by four-wave mixing with loss: an analytic model and experimental diagnostic
Creators: name: Jasperse, M.
name: Turner, L. D.
name: Scholten, R. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Four-wave mixing near resonance in an atomic vapor can produce relative intensity squeezed light suitable for precision measurements beyond the shot-noise limit. We develop an analytic distributed gain/loss model to describe the competition of mixing and absorption through the non-linear medium. Using a novel matrix calculus, we present closed-form expressions for the degree of relative intensity squeezing produced by this system. We use these theoretical results to analyze experimentally measured squeezing from a $^{85}$Rb vapor and demonstrate the analytic model's utility as an experimental diagnostic.
description: 10 pages, 5 figures
Flavoenzyme und ein FMN-Riboswitch aus Escherichia coli sind Zielmoleküle für das Riboflavinanalogon Roseoflavin aus Streptomyces davawensis
Creators: name: Langer, Simone Nicole
Publisher: name: Karlsruhe
Year: 2013
Subjects: Roseoflavin
Riboflavin
Flavoenzyme
Azobenzolreduktase
Riboswitch

description: Das Riboflavinanalogon Roseoflavin wird von Streptomyces davawensis produziert und in Zielzellen zu Roseoflavin-5'-mononukleotid (RoFMN) und Roseoflavinadenindinukleotid (RoFAD) umgesetzt. Flavoenzyme und ein FMN-Riboswitch aus Escherichia coli wurden als mögliche Zielmoleküle für Roseoflavin untersucht. 37 von 38 untersuchten Flavoenzymen konnten RoFMN/RoFAD binden. Die beispielhaft untersuchte Azobenzolreduktase AzoR aus E. coli hatte eine um 70 % reduzierte Aktivität in der RoFMN-Form. Auch der Riboswitch sroG aus E. coli reagierte auf RoFMN.
Experimentelle Untersuchung der turbulenten Brenngeschwindigkeit unter Berücksichtigung von Vorwärmtemperatur und Brennstoffzusammensetzung
Creators: name: Zajadatz, Martin
Publisher: name: Karlsruhe
Year: 2013
Subjects: Turbulenz
Kinetik
Vormischflammen
Flammengeschwindigkeit
Gasturbine

description: In dieser Arbeit wurden umfangreiche Daten zur Vormischverbrennung bei Variation der Turbulenzstruktur des Strömungsfeldes, der Brennstoff-Luftvormischtemperatur und der Reaktionskinetik durch Mischung von Erdgas mit reaktiverem Wasserstoff erzeugt. Die Vormischflammen wurden an einem technisch relevanten Modellbrennersystem untersucht. Als charakteristische Größe für die Wechselwirkung zwischen Reaktionskinetik und Turbulenzparametern wurde die turbulente Brenngeschwindigkeit bestimmt.
On primordial trispectrum from exchanging scalar modes in general multiple field inflationary models
Creators: name: Gao, Xian
name: Lin, Chunshan
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We make an complementary investigation of the primordial trispectrum from exchanging intermediate scalar modes in multi-field inflation models with generalized kinetic terms. Together with the calculation of irreducible contributions to the primordial trispectrum in Ref.[103], we give the full leading-order primordial trispectrum in generalized multi-field models.
description: 15 pages, 1 figure; v2 references added
Variational study of a two-level system coupled to a harmonic oscillator in a ultrastrong coupling regime
Creators: name: Hwang, Myung-Joong
name: Choi, Mahn-Soo
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The nonclassical behaviors of a two-level system coupled to a harmonic oscillator is investigated in the ultrastrong coupling regime. We revisit the variational solution of the ground state and find that the existing solution do not account accurately for nonclassical effects such squeezing. We suggest a new trial wave function and demonstrate that it has an excellent accuracy on the quantum correlation effects as well as on energy.
description: 4 pages; 3 figures; to appear in Phys. Rev. A
Overlapping genetic risk in the spectrum of sudden death
Creators: name: Troskie, Christine
Publisher: name: University of British Columbia
Year: 2017

description: Sudden Infant Death Syndrome (SIDS) is a sudden death occurring during sleep in infants below 1 year of old, which devastates the impacted families. By nature, SIDS deaths are those where all alternative causes of death, like suffocation or strangulation are eliminated, leaving families with few answers. While SIDS impacts infants, a spectrum of Sudden Death disorders exists across all age ranges and with comorbid syndromes, many of which occur sudden and unexpectedly during sleep. There is genetic overlap in risk genes in these disorders, and most notably between SIDS, Sudden Unexpected Death in Epilepsy (SUDEP), and Sudden Unexpected Death (SUD). Known and suspected Sudden Death (SD) genes are alternatively spliced in the developing brain in age and region dependent patterns, which may explain the differential timing of sudden death disorders despite their shared molecular risk factors. The objective of my project was to identify genes associated with sudden death and determine the timing of their alternative splicing. A literature search followed by an integrated pathway analysis generated a Sudden Death (SD) candidate genes (N=248). Analysis of whole exome sequences for eight (8) sudden death probands (SIDS (N=4), SUDEP (N=3) and SUD (N=1) samples was performed and Variant Effector Predictor was used to annotate the variants. The overall number of variants in the exomes for the SIDS individuals ranged from 40869-69978, SUDEP ranged from 19162-63954, and SUD contained 63217. Within the SD candidate genes, the number of variants in SIDS (707-1160), SUDEP (379-1078), and SUD (1026) did not allow for distinguishing between cohorts. All probands regardless of age carried multiple pathogenic variants in genes associated with disorders with high incidences of sudden death such as Long QT Syndrome, Dilated Cardiomyopathy, Dravet Syndrome, and Infantile Epileptic Encephalopathy many of which impacted one or more gene isoforms. The expression patterns of these genes of interest were evaluated using the Allen Brain Atlas for the Developing Mouse Brain to identify when, and what form each gene product is expressed. These patterns of personal genetic risk can be used to identify potential targets for molecular diagnostic screening and prevention.
Additional file 2 of Improving stool sample processing and pyrosequencing for quantifying benzimidazole resistance alleles in Trichuris trichiura and Necator americanus pooled eggs
Creators: name: Gandasegui, Javier
name: Grau-Pujol, Berta
name: Cambra-Pelleja, María
name: Escola, Valdemiro
name: Demontis, Maria Antonietta
name: Cossa, Anelsio
name: Jamine, José Carlos
name: Balaña-Fouce, Rafael
name: van Lieshout, Lisette
name: Muñoz, José
name: Martínez-Valladares, María
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2. Additional Tables S1, S2, S3 and S4.
Domain Decomposition Methods in Optimal Flow Control for High Performance Computing
Creators: name: Ketelaer, Eva
Publisher: name: Karlsruhe
Year: 2013
Subjects: Domain decomposition methods
optimal flow control
Navier-Stokes equations
balancing Neumann-Neumann preconditioners

description: This thesis is concerned with linear and non-linear optimal flow control problems which are modeled by systems of partial differential equations. The numerical treatment of such problems, especially in the context of flow problems, is often very expensive and challenging. To tackle this complexity, we present parallel approaches based on non-overlapping domain decomposition methods that exploit the computational power provided by modern high performance computing technologies.
Product of Ginibre matrices: Fuss-Catalan and Raney distributions
Creators: name: Penson, Karol A.
name: Zyczkowski, Karol
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Squared singular values of a product of s square random Ginibre matrices are asymptotically characterized by probability distribution P_s(x), such that their moments are equal to the Fuss-Catalan numbers or order s. We find a representation of the Fuss--Catalan distributions P_s(x) in terms of a combination of s hypergeometric functions of the type sF_{s-1}. The explicit formula derived here is exact for an arbitrary positive integer s and for s=1 it reduces to the Marchenko--Pastur distribution. Using similar techniques, involving Mellin transform and the Meijer G-function, we find exact expressions for the Raney probability distributions, the moments of which are given by a two parameter generalization of the Fuss-Catalan numbers. These distributions can also be considered as a two parameter generalization of the Wigner semicircle law.
description: 10 pages including 7 figures, minor changes, figures improved
title: Analysis of strut‐based lattice cores in sandwich panels using homogenization and dehomogenization methods
Creators: name: Georges, Hussam
name: Mittelstedt, Christian
name: Becker, Wilfried
Publisher: name: Wiley-VCH
Year: 2023

description: The design freedom provided by additive manufacturing offers new opportunities to fabricate novel structures with a high lightweight potential, such as strut‐based lattice structures. These lattice structures consist of periodically repeated unit cells and can be used in several applications due to their outstanding mechanical performance. One of the possible applications are cores of sandwich panels since the strut‐based lattices offer comparable mechanical properties to conventional honeycomb structures. Moreover, multifunctional use of the sandwich core is enabled by allowing the heat and fluid transfer through the sandwich due to the open‐celled lattice structure. However, strut‐based lattices are rarely utilized as cores in sandwich panels in engineering practice. One of the main reasons for that is the unknown mechanical behavior of lattice cores. In particular, when the sandwich is subjected to concentrated loads, localized stresses and deformations occur in the sandwich core, leading to core damage. In this work, we present a novel analytical model to determine stresses and deformations in the struts of lattice cores of sandwich panels using homogenization and dehomogenization methods. The local core compression caused by localized transverse forces can also be determined by the derived model.
Search for H dibaryon on the lattice
Creators: name: Luo, Zhi-Huan
name: Loan, Mushtaq
name: Liu, Yan
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate the H-dibaryon, an $I(J^{P})=0(0^{+})$ with $s=-2$, in the chiral and continuum regimes on anisotropic lattices in quenched QCD. Simulations are performed on very coarse lattices with refined techniques to obtain results with high accuracy over a spatial lattice spacing in the range of $a_{s} \sim 0.19 - 0.41$ fm. We present results for the energy difference between the ground state energy of the hexa-quark stranglet and the free two-baryon state from our ensembles. A negative binding energy observed in the chirally extrapolated results leads to the conclusion that the measured hexa-quark state is bound. This is further confirmed by the attractive interaction in the continuum limit with the observed H-dibaryon bound by $\sim 47$ MeV.
description: 7 pages, 5 figures, Accepted for publication in Phys. Rev. D
Connecting distant ends of one-dimensional critical systems by a sine-square deformation
Creators: name: Hikihara, Toshiya
name: Nishino, Tomotoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the one-dimensional quantum critical spin systems with the sine-square deformation, in which the energy scale in the Hamiltonian at the position $x$ is modified by the function $f_x = \sin^2\left[π{L}(x-1/2)]$, where $L$ is the length of the system. By investigating the entanglement entropy, spin correlation functions, and wave-function overlap, we show that the sine-square deformation changes the topology of the geometrical connection of the ground state drastically; Although the system apparently has open edges, the sine-square deformation links those ends and realizes the periodic ground state at the level of wave function. Our results propose a new method to control the topology of quantum states by energy-scale deformation.
description: 5 pages, 4 figures. v2: accepted version
On Nichols algebras associated to simple racks
Creators: name: Andruskiewitsch, N.
name: Fantino, F.
name: Garcia, G. A.
name: Vendramin, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 16T05

description: This is a report on the present state of the problem of determining the dimension of the Nichols algebra associated to a rack and a cocycle. This is relevant for the classification of finite-dimensional complex pointed Hopf algebras whose group of group-likes is non-abelian. We deal mainly with simple racks. We recall the notion of rack of type D, collect the known lists of simple racks of type D and include preliminary results for the open cases. This notion is important because the Nichols algebra associated to a rack of type D and any cocycle has infinite dimension. For those racks not of type D, the computation of the cohomology groups is needed. We discuss some techniques for this problem and compute explicitly the cohomology groups corresponding to some conjugacy classes in symmetric or alternating groups of low order.
description: 26 pages, minor changes
Boundary Effects on the Determination of Metamaterial Parameters from Normal Incidence Reflection and Transmission Measurements
Creators: name: Kim, Sung
name: Kuester, Edward F.
name: Holloway, Christopher L.
name: Scher, Aaron D.
name: Baker-Jarvis, James
Publisher: name: arXiv
Year: 2010
Subjects: subject: Classical Physics (physics.class-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A method is described for the determination of the effective electromagnetic parameters of a metamaterial based only on external measurements or simulations, taking boundary effects at the interfaces between a conventional material and metamaterial into account. Plane-wave reflection and transmission coefficients at the interfaces are regarded as additional unknowns to be determined, rather than explicitly dependent on the material parameters. Our technique is thus analogous to the line-reflect-line (LRL) calibration method in microwave measurements. The refractive index can be determined from S-parameters for two samples of different thickness. The effective wave impedance requires the additional assumption that generalized sheet transition conditions (GSTCs) account for the boundary effects. Expressions for the bulk permittivity and permeability then follow easily. Our method is validated by comparison with the results using the Nicolson-Ross-Weir (NRW) for determining properties of an ordinary material measured in a coaxial line. Utilizing S-parameters obtained from 3-D full wave simulations, we test the method on magnetodielectric metamaterials. We compare the results from our method and the conventional one that does not consider boundary effects. Moreover, it is shown that results from our method are consistent under changes in reference plane location, whereas the results from other methods are not.
description: 16 pages, 16 figures. Submitted to IEEE Transactions on Antennas and Propagation
Matrix Coordinate Bethe Ansatz: Applications to XXZ and ASEP models
Creators: name: Crampe, N.
name: Ragoucy, E.
name: Simon, D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B23, 81R50

description: We present the construction of the full set of eigenvectors of the open ASEP and XXZ models with special constraints on the boundaries. The method combines both recent constructions of coordinate Bethe Ansatz and the old method of matrix Ansatz specific to the ASEP. This "matrix coordinate Bethe Ansatz" can be viewed as a non-commutative coordinate Bethe Ansatz, the non-commutative part being related to the algebra appearing in
description: 18 pages; Version to appear in J Phys A
Double Parton Scattering Singularity in One-Loop Integrals
Creators: name: Gaunt, Jonathan R.
name: Stirling, W. James
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a detailed study of the double parton scattering (DPS) singularity, which is a specific type of Landau singularity that can occur in certain one-loop graphs in theories with massless particles. A simple formula for the DPS singular part of a four-point diagram with arbitrary internal/external particles is derived in terms of the transverse momentum integral of a product of light cone wavefunctions with tree-level matrix elements. This is used to reproduce and explain some results for DPS singularities in box integrals that have been obtained using traditional loop integration techniques. The formula can be straightforwardly generalised to calculate the DPS singularity in loops with an arbitrary number of external particles. We use the generalised version to explain why the specific MHV and NMHV six-photon amplitudes often studied by the NLO multileg community are not divergent at the DPS singular point, and point out that whilst all NMHV amplitudes are always finite, certain MHV amplitudes do contain a DPS divergence. It is shown that our framework for calculating DPS divergences in loop diagrams is entirely consistent with the `two-parton GPD' framework of Diehl and Schafer for calculating proton-proton DPS cross sections, but is inconsistent with the `double PDF' framework of Snigirev.
description: 29 pages, 8 figures. Minor corrections and clarifications added. Version accepted for publication in JHEP