cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Defining the role of the assisting teacher in implementation
Creators: name: Krutow, Brenda Dianne
Publisher: name: University of British Columbia
Year: 2010

description: The purpose was to outline how the role of an "assisting teacher" in curriculum implementation can be defined. The role of the "assisting teacher" was defined because it is an implementation strategy used within the British Columbia context. Four sources were used to define the role of the assisting teacher in this study. 1. Research literature on implementation roles, 2. Evaluation or needs assessment reports, 3. Current and proposed curricula, and 4. A selected school district context. Because the purpose of this study was to demonstrate how these sources could be used concretely to define a role, the present (1968) and the proposed (1983) secondary social studies curricula in British Columbia, the province-wide social studies assessment (1977), and School District No. 41 (Burnaby) were analyzed selectively. The following questions guided the research: 1. What is the role of the assisting teacher as implied by selected research literature? 2. What is the role of the assisting teacher as implied by the 1977 British Columbia Social Studies Assessment 3. What is the role of the teacher and the assisting teacher as implied by the proposed (1983) social studies curriculum for British Columbia? 4. What is the role of the assisting teacher as perceived in the Burnaby School District? 5. What role description do these four sources help define? Selected research literature, social studies assessment documents, and social studies curricula were analyzed. To determine the actual and/or ideal role of the assisting teacher as perceived in the Burnaby School District, interviews were conducted with five assisting teachers, as well as their supervisor and coordinator, and with eight secondary social studies department heads. The study concluded with generalizations and a process for defining the role of the assisting teacher in curriculum implementation. This process may have generalizability for defining the role of the assisting teacher in curriculum areas other than social studies.
Two approaches to curriculum criticism
Creators: name: Menzies, Sandra
Publisher: name: University of British Columbia
Year: 2010

description: Curriculum critics borrow many of their concepts from traditions of criticism and inquiry outside education, and transform these into approaches to curriculum description and evaluation. Though these judge the significance of curriculum, each approach differs from others. The literature on curriculum criticism has not focussed explicitly on these differences or elucidated the similarities. This thesis investigates some commonalities and differences between two approaches, one developed by Elliot Eisner, and one by William Pinar. Specifically, this study investigates the purpose, form and substance of each approach in terms of their presuppositions, the nature of the data, methodological processes, qualities of the finished critique, and the difficulties with reader acceptance. Two sources for data were used: selected literature and the application of the two approaches to the critiquing of a videotaped learning material. Some of the conclusions reached were: Although both investigate the qualities of a curriculum exchange, one approach emphasizes the connoisseur's voice, one approach emphasizes the personal voice. Although the process in both necessitates the presence of the critic in the curriculum exchange, the record of the experience follows a different direction in each case. Accordingly, the methodology in each approach differs beccause the intent of the critic is different. Furthermore, in one approach, because the reader mediates the disclosures, structural corroboration and referential adequacy are stressed; in the other, because personal discovery validates the disclosures, personal experience and voice are stressed.
ตำนานเชียงใหม่กับการตีความตามบริบทของการผังเมือง
Creators: name: ผู้ช่วยศาสตราจารย์ ดร.นพนันท์ ดาปนานนท์
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2011
Subjects: เชียงใหม่,ผังเมือง,ตำนาน,ภูมิปัญญาท้องถิ่น,มังราย

description: 60, Academic Journal of Architecture
Epirranthini
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Epirranthini 1497 * R Spodolepis substriataria Hulst, 1896 L Apr – M May – B – T: McGuffin (1981) L: Bowman (1951), McGuffi n (1981) C: CNC, NFRC, OLDS, PMAE, UASM 1498 * R Spodolepis danbyi (Hulst, 1898) L Apr – M May m – – T: McGuffin (1981) L: Bowman (1951), Prentice (1963), McGuffin (1981) C: CNC, NFRC, OLDS, UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on pages 221-222, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["McGuffin WC (1981) Guide to the Geometridae of Canada (Lepidoptera) II. Subfamily Ennominae. 3. Memoirs of the Entomological Society of Canada 117: 1 - 153.", "Bowman K (1951) An annotated list of the Lepidoptera of Alberta. Canadian Journal of Zoology 29: 121 - 165.", "Prentice RM (1963) Forest Lepidoptera of Canada reported by the Forest Insect Survey, Vol. 3: Lasiocampidae, Drepanidae, Th yatiridae, Geometridae. Canada Dept. of Forestry, Forest Entomology and Pathology Branch, Bulletin No. 128, pp. 282 - 543."]}
Diversity-Integration Trade-offs in MIMO Detection
Creators: name: De Maio, Antonio
name: Lops, Marco
name: Venturino, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Computer Science (cs.OH)
subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work, a MIMO detection problem is considered. At first, we derive the Generalized Likelihood Ratio Test (GLRT) for arbitrary transmitted signals and arbitrary time-correlation of the disturbance. Then, we investigate design criteria for the transmitted waveforms in both power-unlimited and power-limited systems and we study the interplay among the rank of the optimized code matrix, the number of transmit diversity paths and the amount of energy integrated along each path. The results show that increasing the rank of the code matrix allows generating a larger number of diversity paths at the price of reducing the average signal-to-clutter level along each path.
X-ray Spectral Properties of the BAT AGN Sample
Creators: name: Winter, L. M.
name: Mushotzky, R.
name: Reynolds, C. S.
name: Tueller, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The 9-month Swift Burst Alert Telescope (BAT) catalog provides the first unbiased (log N_H < 24) look at local ( = 0.03) AGN. In this paper, we present the collected X-ray properties (0.3 - 12keV) for the 153 AGN detected. In addition, we examine the X-ray properties for a complete sample of non-beamed sources, above the Galactic plane. Of these, 45% are best fit by simple power law models while 55% require the more complex partial covering model. One of our goals was to determine the fraction of "hidden" AGN, which we define as sources with scattering fractions < 0.03 and ratios of soft to hard X-ray flux < 0.04. We found that "hidden" AGN constitute a high percentage of the sample (24%), proving that they are a very significant portion of local AGN. Further, we find that the fraction of absorbed sources does increase at lower unabsorbed 2-10 keV luminosities, as well as accretion rates. Some of the most interesting results for the BAT AGN sample involve the host galaxy properties. We found that 33% are hosted in peculiar/irregular galaxies and only 5/74 hosted in ellipticals. Further, 54% are hosted in interacting/merger galaxies. Finally, we present both the average X-ray spectrum (0.1-10 keV) and log N-log S in the 2-10 keV band. With our average spectrum, we have the remarkable result of reproducing the measured CXB X-ray power law slope of ~ 1.4 (Marshall et al. 1980). From the log N-log S relationship, we show that we are complete to log S < -11 in the 2-10 keV band. Both the collected X-ray properties of our uniform sample and the log N-log S relationship will now provide valuable input to X-ray background models for z ~ 0. (abridged)
description: 40 pages, 4 tables, 19 figures (submitted to ApJ)
Examining Leisure-Time Physical Activity Participation Among Older Adults In Australian Community Aquatic And Leisure Facilities: A Socioecological And Multimethod Study
Creators: name: Butson, Michael Craig
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 350405
subject: Sport and leisure management

description: Local governments in Victoria, Australia invest significant public funds into the development and re-development of aquatic and leisure facilities. These facilities are established to cater to local community needs, spanning leisure-time physical activity provision, community development, and inclusive engagement of all community members. Nevertheless, the literature has identified older adults are particularly susceptible to experiencing constraints to leisure-time physical activity participation in aquatic and leisure facilities. The ecological approach to creating active living communities (Sallis et al., 2006) was adopted to gain deeper understanding of the factors influencing leisure-time physical activity among older adults in aquatic and leisure facilities.
Gamma Ray Burst Production and Supernova Signatures in Slowly Rotating Collapsars
Creators: name: Lopez-Camara, Diego
name: Lee, William H.
name: Ramirez-Ruiz, Enrico
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider accretion onto newborn black holes following the collapse of rotating massive stellar cores, at the threshold where a centrifugally supported disk gives way to nearly radial inflow for low angular momentum. For realistic initial conditions taken from pre-supernova (pre-SN) evolution calculations, the densities and temperatures involved require the use of a detailed equation of state and neutrino cooling processes, as well as a qualitative consideration of the effects of general relativity. Through two-dimensional dynamical calculations we show how the energy release is affected by the rotation rate and the strength of angular momentum transport, giving rise to qualitatively different solutions in limits of high and low angular momentum, each being capable of powering a gamma-ray burst (GRB). We explore the likelihood of producing Fe-group elements in the two regimes and suggest that while large and massive centrifugally supported disks are capable of driving strong outflows with a possible SN-like signature, quasi-radial flows lack such a feature and may produce a GRB without such an accompanying feature, as seen in GRB060505.
description: 16 pages, 11 figures, 2 tables. Accepted for publication in ApJ
Octupolar ordering of classical kagome antiferromagnets in two and three dimensions
Creators: name: Zhitomirsky, M. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Classical Heisenberg antiferromagnets on two-dimensional kagome and three-dimensional hyperkagome lattices are investigated by Monte Carlo simulations. For both models the symmetry-breaking states at low temperatures are described by non-zero octupole moments or third-rank spin tensor order parameters. In the case of the two-dimensional kagome antiferromagnet, a sharp crossover into a coplanar state takes place at T_k ~ 0.004J, which we attribute to proliferation of fractional vortices. The three-dimensional model exhibits a first-order transition at T_c ~ 0.002J into a phase with critical spin correlations, which possesses a long-range order of octupole moments.
description: 12+ pages, 14 figures, accepted version
การออกแบบและจัดทำต้นแบบฝายน้ำล้นแบบต่อประกอบ ที่สามารถปรับเปลี่ยนตามความต้องการเพื่อการจัดการน้ำในชุมชนระดับหมู่บ้าน
Creators: name: สมประสงค์ รุ่งเรือง
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2011
Subjects: ฝายน้ำล้น,ฝายชะลอน้ำ,การจัดการน้ำในชุมชน,สภาวะโลกร้อน,การซึมผ่านผิวดิน,น้ำท่า

description: 60, Academic Journal of Architecture
Role of relaxation in the quantum measurement of a superconducting qubit using a nonlinear oscillator
Creators: name: Picot, T.
name: Lupascu, A.
name: Saito, S.
name: Harmans, C. J. P. M.
name: Mooij, J. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the relaxation of a superconducting flux qubit during measurement. The qubit state is measured with a nonlinear oscillator driven across the threshold of bifurcation, acting as a switching dispersive detector. This readout scheme is of quantum non-demolition type. Two successive readouts are used to analyze the evolution of the qubit and the detector during the measurement. We introduce a simple transition rate model to characterize the qubit relaxation and the detector switching process. Corrected for qubit relaxation the readout fidelity is at least 95%. Qubit relaxation strongly depends on the driving strength and the state of the oscillator.
description: 4 pages, 4 figures
Kondo-lattice-mediated interactions in flat band systems
Creators: name: Kumar, Pramod
name: Chen, Guangze
name: Lado, J. L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electronic flat bands represent a paradigmatic platform to realize strongly correlated matter due to their associated divergent density of states. In common instances, including electron-electron interactions leads to magnetic instabilities for repulsive interactions and superconductivity for attractive interactions. Nevertheless, interactions of Kondo nature in flat band systems have remained relatively unexplored. Here we address the emergence of interacting states mediated by Kondo lattice coupled to a flat band system. Combining dynamical mean-field theory and tensor networks methods to solve flat band Kondo lattice models in one and two dimensions, we show the emergence of a robust underscreened regime leading to a magnetically ordered state in the flat band. Our results put forward flat band Kondo lattice models as a platform to explore the genuine interplay between flat band physics and many-body Kondo screening.
description: 8 Pages, 7 figures
MPEC 2024-T07 : 2024 SM6
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 SM6

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Structures of curriculum change as experienced by teachers
Creators: name: Pike, Margaret Louise
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to make explicit some meanings teachers give to the process of curriculum implementation, in order to understand how they typically experience this change. From their experiences and meanings, some typical structures of curriculum change were defined. The major question asked was: What are the typical structures of curriculum change? Methodologically this major question was divided into the following questions: 1. How is curriculum change experienced by teachers? 2. What commonalities (i.e typical structures) underlie these experiences? 3. What ideal type of curriculum change emerges from these typical structures? Through taped interviews and subsequent transcript analysis, three structures of change emerged. The first structure was 'actual use', what teachers did during daily activities when working with the new curriculum. The second structure was their experience of 'time', how teachers perceived and organized their time during implementation. The third structure consisted of various 'influences' upon the teachers' experience of implementation. These 'influences' included their beliefs about teaching, their talking with other educators, the kinds of support they received during the change, and the student responses towards the new curriculum. Included in the study were twenty primary teachers within two school districts who were implementing the Ginn 720 Reading Program during the 1979-80 school year. Fourteen teachers were individually interviewed three times: first, to elicit their experiences of change; second to validate the researcher's interpretations of transcript conversations; and third to validate the researcher's conclusions regarding curriculum change as experienced by teachers. Six others who were not involved in the data gathering interviews, also participated in individual interviews as a final validation of the study's conclusions.
In situ reduction of charge noise in GaAs/AlGaAs Schottky-gated devices
Creators: name: Buizert, Christo
name: Koppens, Frank H. L.
name: Pioro-Ladriere, Michel
name: Tranitz, Hans-Peter
name: Vink, Ivo T.
name: Tarucha, Seigo
name: Wegscheider, Werner
name: Vandersypen, Lieven M. K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that an insulated electrostatic gate can be used to strongly suppress ubiquitous background charge noise in Schottky-gated GaAs/AlGaAs devices. Via a 2-D self-consistent simulation of the conduction band profile we show that this observation can be explained by reduced leakage of electrons from the Schottky gates into the semiconductor through the Schottky barrier, consistent with the effect of "bias cooling". Upon noise reduction, the noise power spectrum generally changes from Lorentzian to $1/f$ type. By comparing wafers with different Al content, we exclude that DX centers play a dominant role in the charge noise.
description: 4 pages, 3 figures
การประยุกต์ใช้แนวคิดส่วนประสมการตลาดสำหรับสำนักงานสถาปนิก
Creators: name: กุลธิดา แสงนิล
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2011
Subjects: สำนักงานสถาปนิก,การปฏิบัติวิชาชีพสถาปัตยกรรม,การตลาด,ส่วนประสมการตลาด

description: 60, Academic Journal of Architecture
Tongue pressure recordings during speech using complete denture
Creators: name: Jeannin, Christophe
name: Perrier, Pascal
name: Payan, Yohan
name: Dittmar, André
name: Grosgogeat, Brigitte
Publisher: name: arXiv
Year: 2008
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: This paper describes an original experimental procedure to measure mechanical interactions between tongue and teeth during speech production. Using edentulous people as subjects, pressure transducers are inserted in their complete denture duplicate. Physiology is respected during sound and pressure recording as with standard complete denture. Original calibration device is also described in order to know what kind of information can be extracted from the data. The measurements are realized in different experimental conditions in order to remove the auditory and the orosensory feedbacks. Then the first results of the pilot study are presented
D7.8 Demonstration Reports (RCM)
Creators: name: Paranos, Chrisostomos
name: Wagner, Pitt
name: Lentink, Hilke
name: Vazquez, Mariana
Publisher: name: Zenodo
Year: 2024

description: The demonstration of the in-situ measurement infrastructure and the services developed within the CityCLIM project in 9 illustrative videos recorded in the four pilot cities.
Lithinini
Creators: name: Pohl, Greg
name: Anweiler, Gary
name: Schmidt, Christian
name: Kondla, Norbert
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Geometridae

description: Lithinini 1499 * U Tacparia detersata (Guenée, [1858]) Jun? – B? – T: Ferguson (1973), McGuffin (1987) L: Ferguson (1973), McGuffi n (1987) C: AMNH? 1500 * R Thallophaga hyperborea (Hulst, 1900) M Jul M – – T: McGuffin (1987) L: None C: UASM
description: Published as part of Pohl, Greg, Anweiler, Gary, Schmidt, Christian & Kondla, Norbert, 2010, An annotated list of the Lepidoptera of Alberta, Canada, pp. 1-549 in ZooKeys 38 (38) on page 222, DOI: 10.3897/zookeys.38.383, http://zenodo.org/record/576629
description: {"references": ["Ferguson DC (1973) Th e species of the genus Tacparia Walker (Lepidoptera: Geometridae). Proceedings of the Entomological Society of Washington 75: 467 - 478.", "McGuffin WC (1987) Guide to the Geometridae of Canada (Lepidoptera) II. Subfamily Ennominae. 4. Memoirs of the Entomological Society of Canada 138: 1 - 181."]}
Quantum Reflection of S-wave Unstable States
Creators: name: Kelkar, N. G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The phase time in quantum tunneling can be disentangled into a dwell time plus a term arising due to the interference of the reflected and incident waves in front of the barrier. The interference term dominates at low energies and as E --> 0, this term and hence the phase time becomes singular. With the s-wave motion in three dimensions being equivalent to that of a one-dimensional motion in the radial coordinate, a similar singularity shows up in the phase time delay of s-wave resonances. Relating the scattering matrix in three dimensional collisions to the reflection amplitude, the interference term in tunneling can be identified as a term given in terms of the transition matrix in scattering. Subtraction of this term from the phase time delay gives the dwell time delay which is finite at all energies and is useful in characterizing s-wave resonances such as the sigma meson and mesic nuclei near threshold.
description: Talk given at SCADRON70 Workshop on Scalar Mesons and Related Topics, Lisbon, Portugal
White-Box Cartoonization Using An Extended GAN Framework
Creators: name: Thakur, Amey
name: Rizvi, Hasan
name: Satish, Mega
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In the present study, we propose to implement a new framework for estimating generative models via an adversarial process to extend an existing GAN framework and develop a white-box controllable image cartoonization, which can generate high-quality cartooned images/videos from real-world photos and videos. The learning purposes of our system are based on three distinct representations: surface representation, structure representation, and texture representation. The surface representation refers to the smooth surface of the images. The structure representation relates to the sparse colour blocks and compresses generic content. The texture representation shows the texture, curves, and features in cartoon images. Generative Adversarial Network (GAN) framework decomposes the images into different representations and learns from them to generate cartoon images. This decomposition makes the framework more controllable and flexible which allows users to make changes based on the required output. This approach overcomes any previous system in terms of maintaining clarity, colours, textures, shapes of images yet showing the characteristics of cartoon images.
description: 5 pages, 6 figures. International Journal of Engineering Applied Sciences and Technology, 2021
Measurements of $p$-$Ξ$, $Λ$-$Λ$, and $Ξ$-$Ξ$ Correlation in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV at RHIC-STAR
Creators: name: Isshiki, Moe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The hyperon-hyperon and hyperon-nucleon interactions are important in search for exotic hadrons such dibaryon as a bound state of two baryons. $Λ$-$Λ$ correlation has been measured in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV at RHIC-STAR experiment using high statistics data recently taken, which has been found to clearly show the anti-correlation. The first measurements of p-$Ξ$ and $Ξ$-$Ξ$ correlations in Au+Au collisions have been shown. The p-$Ξ$ correlation function shows the strong attractive interaction, which is consistent with HAL QCD calculation. $Ξ$-$Ξ$ correlation has also been measured to be negative (as anti-correlation).
description: Proceedings of Strangeness in Quark Matter conference, 17-22 May 2021, 4 pages, 4figures
Letter from Kathleen Raine to Percy Jarrett, February 02, [1974]
Creators: name: Raine, Kathleen, 1908-2003
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: English poetry--Manuscripts
valueUri: http://id.worldcat.org/fast/912320
subject: Periodicals--Publishing
valueUri: http://id.worldcat.org/fast/1058100
subject: Skelton, Robin
valueUri: http://id.worldcat.org/fast/51853
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Scholars
valueUri: http://id.worldcat.org/fast/1106878
subject: Raine, Kathleen, 1908-2003
valueUri: http://id.worldcat.org/fast/52672
subject: Skelton, Sylvia
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Jarrett, Elizabeth
subject: Jarrett, Percy W.
subject: Book industries and trade
valueUri: http://id.worldcat.org/fast/836171
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Philobiblion (Bookseller : Victoria, B.C.)
subject: Critics
valueUri: http://id.worldcat.org/fast/883769
subject: Authors
valueUri: http://id.worldcat.org/fast/821688

description: Part of a collection of letters from award-winning British poet and scholar Kathleen Raine to Percy Jarrett, owner of the dealership Philobiblion which specialized in literary books and manuscripts. Most of the letters discuss the negotiation of sales of Raine’s manuscript material (of which Irvine Library at the University of California was the primary buyer), the periodical Temenos, that Raine co-founded; and Jarret’s son-in law Robin Skelton, who was a poet and Professor of English Literature at the University of Victoria. In this letter Raine writes that she is working towards packaging up some material to send to Jarrett to sell.
Market response to external events and interventions in spherical minority games
Creators: name: Papadopoulos, P.
name: Coolen, A. C. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We solve the dynamics of large spherical Minority Games (MG) in the presence of non-negligible time dependent external contributions to the overall market bid. The latter represent the actions of market regulators, or other major natural or political events that impact on the market. In contrast to non-spherical MGs, the spherical formulation allows one to derive closed dynamical order parameter equations in explicit form and work out the market's response to such events fully analytically. We focus on a comparison between the response to stationary versus oscillating market interventions, and reveal profound and partially unexpected differences in terms of transition lines and the volatility.
description: 14 pages LaTeX, 5 (composite) postscript figures, submitted to Journal of Physics A
Identification of a novel mechanism driving NAFLD progression and therapeutic strategies
Creators: name: Myllys, Maiju Karoliina
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: NAFLD
subject: NASH
subject: Cholestasis
subject: Imipramine
subject: Obeticholic acid
subject: 540
subject: 570
subject: Fettleberkrankheit

description: Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease in Western countries with an increasing prevalence of approximately 25 %. NAFLD comprises several stages, starting as benign steatosis and progressing to non-alcoholic steatohepatitis (NASH), and in some cases to liver cirrhosis and hepatocellular carcinoma (HCC). Although several emerging therapies are currently in clinical trials, so far there are no approved drugs for treatment of NASH. The overarching goal of this thesis was to investigate the mechanisms of NAFLD stage transitions, and to establish preventive measures for the progression from benign steatosis to NASH. First, a mouse model of NAFLD progression was established by long-term feeding of male C57Bl/6N mice with western-style diet (WD) up to 54 weeks. The disease progression was evaluated time-dependently by biochemical, histopathological, and immunohistochemical analyses as well as by intravital two-photon-based imaging. This analyses revealed six stages in NAFLD progression: (1) benign steatosis, (2) macrophage crown-like structure formation, (3) macropinocytosis of bile, (4) ductular reaction, (5) dedifferentiation and functional shutdown, and (6) tumor nodule formation. The novel finding of this thesis was the identification of stage 3, where a retrograde vesicular uptake of bile from bile canaliculi to hepatocytes led to toxic accumulation of bile acids in the liver tissue, providing a link between NAFLD and cholestasis. The phenomenon was further identified as macropinocytosis by treating the mice with a macropinocytosis-specific inhibitor imipramine. As a result, a single application of imipramine efficiently blocked macropinocytosis in WD-fed mice. Interestingly, a long-term application of imipramine for 8 weeks decreased the bile acid concentrations in the liver tissue and led to significant NAFLD amelioration. Moreover, bile macropinocytosis was also found relevant in human NAFLD patients as detected by the presence of fragments of bile canaliculi within steatotic hepatocytes. In conclusion, an NAFLD mouse model recapitulating the different stages of human NAFLD progression to NASH and eventually to HCC was successfully established. Moreover, a novel mechanism possibly driving NALFD progression was identified as macropinocytosis of bile from bile canaliculi back to hepatocytes.
Roll-up del Grupo de Investigación CTS-1137, "NeuroPhysiUS"
Creators: name: Luque Moreno, Carlos
name: Piñero Pinto, Elena
name: Gil Centeno, Antonio
name: Cano Bravo, Fátima
name: Escobio Prieto, Isabel
Publisher: name: Zenodo
Year: 2024

description: This roll-up has been created to present our research group "NeuroPhysiUS" at conferences, presentations, workshops and all types of scientific events in which we participate to teach society our knowledge in Neurological Physiotherapy.
Gravity in Gauge Mediation
Creators: name: Lalak, Zygmunt
name: Pokorski, Stefan
name: Turzynski, Krzysztof
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate O'Raifeartaigh-type models for F-term supersymmetry breaking in gauge mediation scenarios in the presence of gravity. It is pointed out that the vacuum structure of those models is such that in metastable vacua gravity mediation contribution to scalar masses is always suppressed to the level below 1 percent, almost sufficient for avoiding FCNC problem. Close to that limit, gravitino mass can be in the range 10-100 GeV, opening several interesting possibilities for gauge mediation models, including Giudice-Masiero mechanism for mu and Bmu generation. Gravity sector can include stabilized moduli.
description: (v1) 37 pages; (v2) 38 pages, typos corrected, references added, revised discussion of SU(5) breaking
Mitigating stellar activity jitter with different line lists for least-squares deconvolution: analysis of a parametric and a randomised line selection
Creators: name: Bellotti, Stefano
name: Petit, Pascal
name: Morin, Julien
name: Hussain, Gaitee
name: Folsom, Colin
name: Carmona, Andres
name: Delfosse, Xavier
name: Moutou, Claire
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar activity limits the radial velocity search and characterisation of exoplanets, as it introduces spurious jitter in the data sets and prevents the correct retrieval of a planetary signal. This is key for M dwarfs, considering that they manifest high activity levels and are primary targets for present and future searches of habitable Earth-like planets. Effective filtering of activity is crucial to achieve the sensitivity required for small planet detections. Here, we analyse the impact of selecting different line lists for least-squares deconvolution on the dispersion in our RV data sets, to identify the line list that most effectively reduces the jitter. We employ optical observations of the active M dwarf EV Lac collected with ESPaDOnS and NARVAL, and study two line selection approaches: a parametric one based on line properties and a randomised algorithm that samples the line combination space. We test the latter further to find the line list that singles out the activity signal from other sources of noise, and on AD Leo and DS Leo to examine its consistency at mitigating jitter for different activity levels. The analysis is complemented with planetary injection tests. The parametric selection yields a RV RMS reduction of less than 10%, while the randomised selection a systematic >50% improvement, regardless of the activity level of the star examined. Furthermore, if activity is the dominant source of noise, this approach allows the construction of lists containing mainly activity-sensitive lines, which could be used to enhance the rotational modulation of the resulting data sets and determine the stellar rotation period more robustly. Finally, the output line lists allow the recovery of a synthetic planet (0.3-0.6 MJup on a 10 d orbit) in the presence of both moderate (20 m/s semi-amplitude) and high (200 m/s) activity levels, without affecting the planet signal substantially.
description: 17 pages, 16 figures, 4 tables
Ultimate Fast Gyrosynchrotron Codes
Creators: name: Kuznetsov, Alexey A.
name: Fleishman, Gregory D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The past decade has seen a dramatic increase of practical applications of the microwave gyrosynchrotron emission for plasma diagnostics and three-dimensional modeling of solar flares and other astrophysical objects. This break-through turned out to become possible due to apparently minor, technical development of Fast Gyrosynchrotron Codes, which enormously reduced the computation time needed to calculate a single spectrum, while preserving accuracy of the computation. However, the available fast codes are limited in that they could only be used for a factorized distribution over the energy and pitch-angle, while the distributions of electrons over energy or pitch-angle are limited to a number of predefined analytical functions. In realistic simulations, these assumptions do not hold; thus, the codes free from the mentioned limitations are called for. To remedy this situation, we extended our fast codes to work with an arbitrary input distribution function of radiating electrons. We accomplished this by implementing fast codes for a distribution function described by an arbitrary numerically-defined array. In addition, we removed several other limitations of the available fast codes and improved treatment of the free-free component. The Ultimate Fast Codes presented here allow for an arbitrary combination of the analytically and numerically defined distributions, which offers the most flexible use of the fast codes. We illustrate the code with a few simple examples.
description: 15 pages, 8 figures, ApJ accepted
Interpretations of a classroom culture
Creators: name: Davies, Joyce L.
Publisher: name: University of British Columbia
Year: 2010

description: The main purpose of this study was to investigate children's culture in a classroom setting. The following kinds of cultural questions were posed: How much do children reveal about the shared world they live in, in the day-to-day routines of school? How do children learn the things necessary for survival in their classroom world? The specific research questions were: What are the commonplace routines that occur in a typical class day? What is it that children share with each other about classroom routines and rules for behavior? How do young children themselves interpret their own lives in the classroom? The conceptual framework for the study was derived from interpretive social science, ethnomethodology, and ethnography. Techniques included field notes, photography, establishing rapport with students, recording the insider's view, and analyzing interrelationships of the data collected. The focus was the whole class setting as seen from the point of view of participants. To recover the shared meanings in the situation and to uncover how participants constructed their reality and defined their situation, the researcher attempted to see the operating situation as the actors saw it, to perceive the objects as the actors perceived them, to ascertain the meanings for objects in terms of the meanings they had for the actors, to follow the individual's lines of conduct as they organized them, and, to take the role of the child and see the world from his/her point of view. Ethnographic description combined with photography and the interpretive paradigm provided a new way of looking at everyday life in a classroom. The findings of the study are related to the humaneness of classroom life as experienced by the children. Children revealed their conceptions of time, objects, and materials, their understandings of the goals of curriculum, and a consciousness of the duplicity of some of their actions. What emerged was an adult versus children's agenda for the events of the day. The children understood the tacit rules for behavior and action but they interpreted classroom life in terms of restricted communication. While they had strongly felt needs to socialize with one another on the one hand, on the other hand, the children understood the strong emphasis the teacher placed on task completion. To reconcile this conflict the children used visual and verbal cues to communicate covertly. They spoke of manoeuvering around the rules. In summary, what emerged were shared understandings for children's actions used for survival in this classroom setting. Further research is required to refine the use of photography as a tool to gain entry into a situation and to discover how children's and teacher's constructs overlap, the importance of secret sign languages, and the degree of children's internalizations of tacit classroom rules in relation to their observed procedures for carrying them out.
Disks around Brown Dwarfs in the Sigma Orionis Cluster
Creators: name: Luhman, K. L.
name: Hernandez, J.
name: Downes, J. J.
name: Hartmann, L.
name: Briceno, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have performed a census of disks around brown dwarfs in the Sigma Ori cluster using all available images from IRAC onboard the Spitzer Space Telescope. To search for new low-mass cluster members with disks, we have measured photometry for all sources in the Spitzer images and have identified the ones that have red colors that are indicative of disks. We present 5 promising candidates, which may consist of 2 brown dwarfs, 2 stars with edge-on disks, and a low-mass protostar if they are bona fide members. Spectroscopy is needed to verify the nature of these sources. We have also used the Spitzer data to determine which of the previously known probable members of Sigma Ori are likely to have disks. By doing so, we measure disk fractions of ~40% and ~60% for low-mass stars and brown dwarfs, respectively. These results are similar to previous estimates of disk fractions in IC 348 and Cha I, which have roughly the same median ages as Sigma Ori (3 Myr). Finally, we note that our photometric measurements and the sources that we identify as having disks differ significantly from those of other recent studies that analyzed the same Spitzer images. For instance, previous work has suggested that the T dwarf S Ori 70 is redder than typical field dwarfs, which has been cited as possible evidence of youth and cluster membership. However, we find that this object is only slightly redder than the reddest field dwarfs in [3.6]-[4.5] (1.56+/-0.07 vs. 0.93-1.46). We measure a larger excess in [3.6]-[5.8] (1.75+/-0.21 vs. 0.87-1.19), but the flux at 5.8um may be overestimated because of the low signal-to-noise ratio of the detection. Thus, the Spitzer data do not offer strong evidence of youth and membership for this object, which is the faintest and coolest candidate member of Sigma Ori that has been identified to date.
description: Astrophysical Journal, in press
Deep Learning for Reduced Order Modelling and Efficient Temporal Evolution of Fluid Simulations
Creators: name: Pant, Pranshu
name: Doshi, Ruchit
name: Bahl, Pranav
name: Farimani, Amir Barati
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Reduced Order Modelling (ROM) has been widely used to create lower order, computationally inexpensive representations of higher-order dynamical systems. Using these representations, ROMs can efficiently model flow fields while using significantly lesser parameters. Conventional ROMs accomplish this by linearly projecting higher-order manifolds to lower-dimensional space using dimensionality reduction techniques such as Proper Orthogonal Decomposition (POD). In this work, we develop a novel deep learning framework DL-ROM (Deep Learning - Reduced Order Modelling) to create a neural network capable of non-linear projections to reduced order states. We then use the learned reduced state to efficiently predict future time steps of the simulation using 3D Autoencoder and 3D U-Net based architectures. Our model DL-ROM is able to create highly accurate reconstructions from the learned ROM and is thus able to efficiently predict future time steps by temporally traversing in the learned reduced state. All of this is achieved without ground truth supervision or needing to iteratively solve the expensive Navier-Stokes(NS) equations thereby resulting in massive computational savings. To test the effectiveness and performance of our approach, we evaluate our implementation on five different Computational Fluid Dynamics (CFD) datasets using reconstruction performance and computational runtime metrics. DL-ROM can reduce the computational runtimes of iterative solvers by nearly two orders of magnitude while maintaining an acceptable error threshold.
description: 16 pages, 11 figures
A Microscopic Convexity Principle for Nonlinear Partial Differential Equations
Creators: name: Bian, Baojun
name: Guan, Pengfei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We establish a microscopic convexity principle for nonlinear elliptic and parabolic partial differential equations in general form.
Dark Stars: Dark Matter in the First Stars leads to a New Phase of Stellar Evolution
Creators: name: Freese, Katherine
name: Spolyar, Douglas
name: Aguirre, Anthony
name: Bodenheimer, Peter
name: Gondolo, Paolo
name: Sellwood, J. A.
name: Yoshida, Naoki
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The first phase of stellar evolution in the history of the universe may be Dark Stars, powered by dark matter heating rather than by fusion. Weakly interacting massive particles, which are their own antiparticles, can annihilate and provide an important heat source for the first stars in the the universe. This talk presents the story of these Dark Stars. We make predictions that the first stars are very massive ($\sim 800 M_\odot$), cool (6000 K), bright ($\sim 10^6 L_\odot$), long-lived ($\sim 10^6$ years), and probable precursors to (otherwise unexplained) supermassive black holes. Later, once the initial DM fuel runs out and fusion sets in, DM annihilation can predominate again if the scattering cross section is strong enough, so that a Dark Star is born again.
description: 5 pages, Conference Proceeding for IAU Symposium 255: Low-Metallicity Star Formaion: From the First Stars to Dwarf Galaxies
Conformal metrics on $\R^{2m}$ with constant Q-curvature
Creators: name: Martinazzi, Luca
Publisher: name: arXiv
Year: 2008
Subjects: subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We study the conformal metrics on $\R^{2m}$ with constant Q-curvature $Q$ having finite volume, particularly in the case $Q\leq 0$. We show that when $Q<0$ such metrics exist in $\R^{2m}$ if and only if $m>1$. Moreover we study their asymptotic behavior at infinity, in analogy with the case $Q>0$, which we treated in a recent paper. When Q=0, we show that such metrics have the form $e^{2p}g_{\R^{2m}}$, where $p$ is a polynomial such that $2\leq °p\leq 2m-2$ and $\sup_{\R^{2m}}p
description: 13 pages